Author Topic: LIVE: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)  (Read 100460 times)

Offline beidou

  • Full Member
  • ****
  • Posts: 763
  • Mars
  • Liked: 48
  • Likes Given: 3
The IRNSS launch has been delayed for quite some time. The original plan was to deploy the whole constellation (with 7 satellites) by the end of this year.
« Last Edit: 04/05/2014 12:13 pm by input~2 »

Offline Stan Black

  • Senior Member
  • *****
  • Posts: 3135
  • Liked: 377
  • Likes Given: 228
Re: IRNSS-1, PSLV C22 FLP, Q1 2013
« Reply #1 on: 10/06/2012 01:07 pm »
Are they still planning two spares and where will they end up?

Offline Galactic Penguin SST

Re: IRNSS-1, PSLV C22 FLP, Q1 2013
« Reply #2 on: 12/30/2012 09:15 pm »
Do we know if this launch is still scheduled in Q1 2013?

Oh and has the navigation system's ICD (or something like that) ever been released?
Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery.

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: IRNSS-1, PSLV C22 FLP, Q1 2013
« Reply #3 on: 12/31/2012 07:48 pm »
Do we know if this launch is still scheduled in Q1 2013?

Oh and has the navigation system's ICD (or something like that) ever been released?

One navigation sat is planned in 2013 as per ISRO.

Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: IRNSS-1, PSLV C22 FLP, Q1 2013
« Reply #4 on: 12/31/2012 11:09 pm »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline beidou

  • Full Member
  • ****
  • Posts: 763
  • Mars
  • Liked: 48
  • Likes Given: 3
Re: IRNSS-1, PSLV C22 FLP, Q1 2013
« Reply #5 on: 01/15/2013 03:25 pm »
Do we know if this launch is still scheduled in Q1 2013?

Oh and has the navigation system's ICD (or something like that) ever been released?

ICD was finalized years ago but wasn't released yet.

Offline m.prasad

  • Member
  • Posts: 91
  • Liked: 5
  • Likes Given: 0
Re: IRNSS-1, PSLV C22 FLP, May 2013
« Reply #6 on: 01/22/2013 09:47 am »
ISRO is planning IRNSS-1 in May 2013 as per the latest news! It is supposed to be launched on new PSLV variant HP version (with improved 4th stage along with other improvements) that carries 2000kg payload. Pls refer.

I guess, this is still on papers as there is no news about this till now. So, we can assume, ISRO uses XL version for this launch (since payload weight is within XL range).

Thx
~Prasad
« Last Edit: 01/22/2013 09:56 am by m.prasad »

Offline m.prasad

  • Member
  • Posts: 91
  • Liked: 5
  • Likes Given: 0
Re: IRNSS-1, PSLV C22 FLP, May 2013
« Reply #7 on: 01/22/2013 09:54 am »
Just asking with enthu...How much is the payload gain if PSLV uses:

1. S200 for 1st stage (instead of S139)
2. S12 for 3rd stage (instead of S7)

I mean, a PSLV with the following config:
Stage 1: S200 + 6 S12 Strap ons
Stage 2: L40H
Stage 3: S12
Stage 4: L2.5

Any guess? Would that be around 1600Kg-1700Kg?

Thx
~Prasad

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: IRNSS-1, PSLV C22 FLP, May 2013
« Reply #8 on: 01/22/2013 07:19 pm »
ISRO is planning IRNSS-1 in May 2013 as per the latest news! It is supposed to be launched on new PSLV variant HP version (with improved 4th stage along with other improvements) that carries 2000kg payload. Pls refer.

I guess, this is still on papers as there is no news about this till now. So, we can assume, ISRO uses XL version for this launch (since payload weight is within XL range).

Thx
~Prasad

XL version cannot be used for placing IRNSS sat in 240x24000 km (GTO) because its max payload capacity is 1300 kgs for GTO (refer attached PSLVvariants pic) and lift-off wt of the sat is around 1400-1425 kgs (from various isro ppts). HP version on the other hand has the required launch capacity (1440 kgs to GTO).

The two spare IRNSS sats will be launched into the 19140 km circular (i = 64.8 deg.) orbit by the GSLV MK2c (4 stages with PAM-G being the fourth stage, refer meo mission and PAM-G-Hot test)
« Last Edit: 01/23/2013 04:20 am by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: IRNSS-1, PSLV C22 FLP, May 2013
« Reply #9 on: 01/22/2013 07:45 pm »
Just asking with enthu...How much is the payload gain if PSLV uses:

1. S200 for 1st stage (instead of S139)
2. S12 for 3rd stage (instead of S7)

I mean, a PSLV with the following config:
Stage 1: S200 + 6 S12 Strap ons
Stage 2: L40H
Stage 3: S12
Stage 4: L2.5

Any guess? Would that be around 1600Kg-1700Kg?

Thx
~Prasad

probably around 1200-1500 kgs
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline Stan Black

  • Senior Member
  • *****
  • Posts: 3135
  • Liked: 377
  • Likes Given: 228
Re: IRNSS-1, PSLV C22 FLP, May 2013
« Reply #10 on: 01/23/2013 08:59 pm »
The two spare IRNSS sats will be launched into the 19140 km circular (i = 64.8 deg.) orbit by the GSLV MK2c (4 stages with PAM-G being the fourth stage, refer meo mission and PAM-G-Hot test)

That was originally planned for two Russian GLONASS Uragan-M?

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: IRNSS-1, PSLV C22 FLP, May 2013
« Reply #11 on: 01/23/2013 09:59 pm »
The two spare IRNSS sats will be launched into the 19140 km circular (i = 64.8 deg.) orbit by the GSLV MK2c (4 stages with PAM-G being the fourth stage, refer meo mission and PAM-G-Hot test)

That was originally planned for two Russian GLONASS Uragan-M?

Yes you are right. I got it wrong from the attached slide. Or May be ISRO is planning the 2 spare IRNSS sats (apart from the 7 sats to be launched by PSLV) in the same 19100 km orbit?

Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline isro-watch

  • Member
  • Full Member
  • ***
  • Posts: 336
  • Liked: 23
  • Likes Given: 5
Re: IRNSS-1, PSLV C22 FLP, May 2013
« Reply #12 on: 02/26/2013 03:58 am »
ISRO is planning IRNSS-1 in May 2013 as per the latest news! It is supposed to be launched on new PSLV variant HP version (with improved 4th stage along with other improvements) that carries 2000kg payload. Pls refer.

I guess, this is still on papers as there is no news about this till now. So, we can assume, ISRO uses XL version for this launch (since payload weight is within XL range).

Thx
~Prasad

XL version cannot be used for placing IRNSS sat in 240x24000 km (GTO) because its max payload capacity is 1300 kgs for GTO (refer attached PSLVvariants pic) and lift-off wt of the sat is around 1400-1425 kgs (from various isro ppts). HP version on the other hand has the required launch capacity (1440 kgs to GTO).

The two spare IRNSS sats will be launched into the 19140 km circular (i = 64.8 deg.) orbit by the GSLV MK2c (4 stages with PAM-G being the fourth stage, refer meo mission and PAM-G-Hot test)

PSLV-C17 an XL version carried GSAT-12 which was 1450 Kg
http://www.isro.org/pslv-c17/pdf/pslv-c17-brochure.pdf#PSLV-C17

Offline m.prasad

  • Member
  • Posts: 91
  • Liked: 5
  • Likes Given: 0
Re: IRNSS-1, PSLV C22 FLP, May 2013
« Reply #13 on: 03/08/2013 06:45 am »
ISRO is planning IRNSS-1 in May 2013 as per the latest news! It is supposed to be launched on new PSLV variant HP version (with improved 4th stage along with other improvements) that carries 2000kg payload. Pls refer.

I guess, this is still on papers as there is no news about this till now. So, we can assume, ISRO uses XL version for this launch (since payload weight is within XL range).

Thx
~Prasad

XL version cannot be used for placing IRNSS sat in 240x24000 km (GTO) because its max payload capacity is 1300 kgs for GTO (refer attached PSLVvariants pic) and lift-off wt of the sat is around 1400-1425 kgs (from various isro ppts). HP version on the other hand has the required launch capacity (1440 kgs to GTO).

The two spare IRNSS sats will be launched into the 19140 km circular (i = 64.8 deg.) orbit by the GSLV MK2c (4 stages with PAM-G being the fourth stage, refer meo mission and PAM-G-Hot test)

PSLV-C17 an XL version carried GSAT-12 which was 1450 Kg
http://www.isro.org/pslv-c17/pdf/pslv-c17-brochure.pdf#PSLV-C17
Yes! You are right. I think it is the special orbit (not the payload weight) that mandates ISRO to use PSLV-HP (incl improved 4th stage with PAM-G) instead of XL version.

Thx
~Prasad
« Last Edit: 03/08/2013 06:46 am by m.prasad »

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: IRNSS-R1A, PSLV C22 FLP, June 2013
« Reply #15 on: 04/18/2013 02:44 am »
The launch campaign started (15th of this month), PS1-NES has been moved to Mobile Service Tower (MST).


About the sat:

Type/Applications:    Navigation
 
Orbit Location: 55°E Geo
 
Mission Life: 12 Years
 
Equipments: L5 & S-band Navigation payload
                     C-band Ranging Payload
 Frequency:
C-band: U/L:     6700 – 6725 MHz (RHCP)      D/L:     3400 – 3425 MHz (LHCP)
L5-band: D/L:     1176.45 MHz (BW-24 MHz) (RHCP)
S-band: D/L:     2492.028 MHz (BW-16.5 MHz) (RHCP)

http://www.sac.gov.in/SACSITE/IRNSS-1A.html
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: IRNSS-R1A, PSLV C22 FLP, June 2013
« Reply #16 on: 04/23/2013 06:30 am »
Launch planned for the second week of June
(source)

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: IRNSS-R1A, PSLV C22 FLP, June 2013
« Reply #17 on: 04/23/2013 06:41 am »
About the sat:

Type/Applications:    Navigation
 
Orbit Location: 55°E Geo
 
http://www.sac.gov.in/SACSITE/IRNSS-1A.html

Per ISRO annual report 2012-13, 55°E will be used for inclined (29 degrees) geosynchronous operation

Offline Galactic Penguin SST

Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery.

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: IRNSS-R1A, PSLV C22 FLP, June 11, 2013
« Reply #19 on: 05/15/2013 02:21 pm »
Launch now planned on June 12, at 01:01am LT (June 11, at 1931UTC)
(source in Telugu)
« Last Edit: 05/15/2013 02:29 pm by input~2 »

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: IRNSS-R1A, PSLV C22 FLP, June 11, 2013
« Reply #20 on: 05/17/2013 04:36 pm »
Confirmation of date and time of planned launch (in English this time ;D )
India to launch first navigational satellite on June 12

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: IRNSS-R1A, PSLV C22 FLP, end of June, 2013
« Reply #21 on: 05/30/2013 05:13 am »
Launch has been delayed 2 weeks for technical reason.
New launch date is end of June.
(source: local press in Telugu)

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567

Offline beidou

  • Full Member
  • ****
  • Posts: 763
  • Mars
  • Liked: 48
  • Likes Given: 3
Re: IRNSS-R1A, PSLV C22 FLP, end of June, 2013
« Reply #23 on: 05/31/2013 07:02 pm »
Launch has been delayed 2 weeks for technical reason.
New launch date is end of June.
(source: local press in Telugu)


This isn't out of expectations.

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: IRNSS-R1A, PSLV C22 FLP, end of June, 2013
« Reply #24 on: 06/01/2013 04:45 pm »
Confirmation of the delay by ISRO
Quote
June 01, 2013     
Polar Satellite Launch Vehicle (PSLV-C22) flight delayed by a fortnight
IRNSS-1A, the first Indian Navigation Satellite, was scheduled for launch onboard PSLV-C22 on June 12, 2013 at 01:01 hrs. from Satish Dhawan Space Centre, Sriharikota. IRNSS-1A Satellite has gone through all electrical checks and is ready for propellant filling. The PSLV-C22 vehicle was fully integrated and was undergoing electrical checks.
During the electrical checks of the launch vehicle, an anomaly was observed in one of the electro-hydraulic control actuators in the second stage. It has been decided to replace this actuator.
The replacement of the control actuator needs two weeks of activity at the Launch Pad and the Vehicle Assembly Area. Accordingly, the launch of PSLV-C22/IRNSS-1A is delayed by a fortnight with respect to the original scheduled date of June 12, 2013.
http://www.isro.org/pressrelease/scripts/pressreleasein.aspx?Jun01_2013


Offline seshagirib

  • Full Member
  • ***
  • Posts: 328
  • terra firma
  • Liked: 25
  • Likes Given: 37
Re: IRNSS-R1A, PSLV C22 FLP, June 25, 2013
« Reply #25 on: 06/02/2013 04:58 am »
^^ Atleast they are now more transparent on reasons for the delay.
astronaut on space ship earth

Offline Star One

  • Senior Member
  • *****
  • Posts: 14082
  • UK
  • Liked: 4010
  • Likes Given: 220
Re: IRNSS-R1A, PSLV C22 FLP, end of June, 2013
« Reply #26 on: 06/02/2013 05:34 pm »
Confirmation of the delay by ISRO
Quote
June 01, 2013     
Polar Satellite Launch Vehicle (PSLV-C22) flight delayed by a fortnight
IRNSS-1A, the first Indian Navigation Satellite, was scheduled for launch onboard PSLV-C22 on June 12, 2013 at 01:01 hrs. from Satish Dhawan Space Centre, Sriharikota. IRNSS-1A Satellite has gone through all electrical checks and is ready for propellant filling. The PSLV-C22 vehicle was fully integrated and was undergoing electrical checks.
During the electrical checks of the launch vehicle, an anomaly was observed in one of the electro-hydraulic control actuators in the second stage. It has been decided to replace this actuator.
The replacement of the control actuator needs two weeks of activity at the Launch Pad and the Vehicle Assembly Area. Accordingly, the launch of PSLV-C22/IRNSS-1A is delayed by a fortnight with respect to the original scheduled date of June 12, 2013.
http://www.isro.org/pressrelease/scripts/pressreleasein.aspx?Jun01_2013



Thanks for that confirmation and with the reason given as well.

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: PSLV C22, IRNSS-R1A, FLP, June 25 or early July, 2013
« Reply #27 on: 06/06/2013 12:06 pm »
Now we're told "June end or the first week of July" for this launch
(source)

Offline beidou

  • Full Member
  • ****
  • Posts: 763
  • Mars
  • Liked: 48
  • Likes Given: 3
Re: PSLV C22, IRNSS-R1A, FLP, June 25 or early July, 2013
« Reply #28 on: 06/07/2013 11:41 am »
Now we're told "June end or the first week of July" for this launch
(source)

Will this manifest a further delay?

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: PSLV C22, IRNSS-R1A, FLP, June 25 or early July, 2013
« Reply #29 on: 06/07/2013 04:15 pm »
Now we're told "June end or the first week of July" for this launch
(source)

Will this manifest a further delay?
Yep, sounds like a further delay into July...

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: PSLV C22, IRNSS-R1A, FLP, June end or early July, 2013
« Reply #30 on: 06/09/2013 10:05 am »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1813UTC)
« Reply #31 on: 06/13/2013 07:47 pm »
New launch date: July 1 at 1813UTC
(source)

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1813UTC)
« Reply #32 on: 06/19/2013 03:49 pm »
NOTAM (danger zones should correspond to strap-on 1,2,3,4/strap-on 5,6/ 1st stage/fairing/2nd stage/3rd stage)
Quote
A1218/13   [...] - PSLV-C22 ROCKET LAUNCH FM SHAR RANGE, SRIHARIKOTA WILL TAKE
PLACE AS PER FLW DETAILS. THE LAUNCH WILL BE ON ANY ONE OF THE DAY
DUR THIS PERIOD.  ACTUAL DATE OF LAUNCH WILL BE INTIMATED 24 HR
IN ADVANCE THRU A SEPARATE NOTAM.
       LAUNCH PAD COORD: 1343.9N 08014.2E
NO FLT IS PERMITTED OVER THE DNG ZONE.
I.       DNG ZONE-1  A CIRCLE OF 10NM  AROUND THE LAUNCHER
II.      DNG ZONE-2  A RECTANGULAR  AREA BOUNDED BY:
         1345N 08045E 1330N 08040E 1320N 08125E 1335N 08130E
III.     DNG ZONE-3   A RECTANGULAR AREA BOUNDED BY:
         1335N 08210E 1305N 08205E 1240N 08400E 1310N 08405E         
IV.     DNG ZONE-4   A RECTANGULAR AREA BOUNDED BY:
         1300N 08425E 1230N 08420E 1220N 08505E 1250N 08510E
V.      DNG ZONE-5 A RECTANGULAR AREA BOUNDED BY
         1205N 08835E 1125N 08825E 1110N 08925E 1150N 08935E
VI.     DNG ZONE-6 A RECTANGULAR AREA BOUNDED BY
         1100N 09430E 0900N 09430E 0900N 09540E 1100N 09540E
VII.    DNG ZONE-7 A RECTANGULAR AREA BOUNDED BY
         1700S 13300W 1900S 13300W 1000S 09200W 0800S 09300W

ROUTES AFFECTED IN CHENNAI FIR  P761 W20 A465 N571 N877 V003 V004
V009 V010
AND L518
CLOSURE/ALTN RTE:
1. P761 NOT AVBL  MMV VOR AND PPB VOR
ALTN RTE :  MMV VOR-P574-GIRNA-DCT-BIKEN-P762-PPB VOR ?BIDIRECTIONAL?
2.  W20 NOT AVBL BTN MMV VOR AND BODEL
ALTN ROUTE: MMV VOR-TR319/139DEG- 53NM-TTP VOR-TR357/177 DEG-
-81NM- BODEL

 //PART 1 OF 2 PARTS//. 1600-2030 DLY, 01 JUL 16:00 2013 UNTIL 27 JUL 20:30
2013. CREATED: 17 JUN 14:56 2013
« Last Edit: 06/26/2013 03:19 pm by input~2 »

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1813UTC)
« Reply #33 on: 06/21/2013 04:39 am »
« Last Edit: 06/21/2013 04:41 am by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
« Last Edit: 06/25/2013 02:18 pm by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline Galactic Penguin SST

Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1813UTC)
« Reply #35 on: 06/25/2013 02:16 pm »
Speaking of the system, has the Interface Control Document (ICD) for IRNSS been released before?
Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery.

Offline beidou

  • Full Member
  • ****
  • Posts: 763
  • Mars
  • Liked: 48
  • Likes Given: 3
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1813UTC)
« Reply #36 on: 06/25/2013 07:47 pm »
No, never...

Offline kanaka

  • Member
  • Posts: 91
  • Liked: 4
  • Likes Given: 0
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1813UTC)
« Reply #37 on: 06/26/2013 12:22 am »
After inducting the satellite into orbit maneuvers have to be done to bring the satellite to its final destination using LAM.  Even though ISRO has expertise in the same, need to be careful while position the satellite in right direction.

Offline kanaka

  • Member
  • Posts: 91
  • Liked: 4
  • Likes Given: 0
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1813UTC)
« Reply #38 on: 06/26/2013 12:29 am »
How many days will it take to put the satellite into final orbit after launch? Any idea?

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1817UTC)
« Reply #39 on: 06/26/2013 09:10 am »
Launch time now said to be 1817UTC, July 1.
(source in Telugu)

Offline Galactic Penguin SST

Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1817UTC)
« Reply #40 on: 06/26/2013 09:21 am »
Launch time now said to be 1817UTC, July 1.
(source in Telugu)


....and the ISRO status page gives 18:11 UTC....  ???
Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery.

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #41 on: 06/26/2013 02:54 pm »
Flight profile and sequence of events from ISRO brochure
Final orbit inclination should be 29° (as per brochure text - 27° in the sequence of events figure seems to be a misprint -)
« Last Edit: 06/26/2013 03:00 pm by input~2 »


Offline beidou

  • Full Member
  • ****
  • Posts: 763
  • Mars
  • Liked: 48
  • Likes Given: 3
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #43 on: 06/26/2013 05:57 pm »
Flight profile and sequence of events from ISRO brochure
Final orbit inclination should be 29° (as per brochure text - 27° in the sequence of events figure seems to be a misprint -)

I'm attaching the brochure here for our archive.

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1817UTC)
« Reply #44 on: 06/26/2013 07:02 pm »
Launch time now said to be 1817UTC, July 1.
(source in Telugu)


....and the ISRO status page gives 18:11 UTC....  ???
Seems like 11:47 (pm LT) in the Telugu paper could be a typo for 11:41 (pm LT)

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #45 on: 06/27/2013 02:44 am »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #46 on: 06/28/2013 03:08 am »
June 27, 2013

Launch rehearsal is in progress.

Global checks completed successfully.
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline Galactic Penguin SST

Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #47 on: 06/28/2013 06:51 am »
So apparently this launch will use the XL version of the rocket. I thought this would be the debut flight of the HP version with longer 1st and 2nd stages and higher performance upper stages. What happened to this version?  ???
Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery.

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #48 on: 06/28/2013 02:57 pm »
 XL version is sufficient for the mission.


June 28, 2013
The 64 hrs. and 30 min. countdown is expected to start at 7:11 hrs (IST) on June 29, 2013.

Launch rehearsal completed successfully.
« Last Edit: 06/28/2013 03:01 pm by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #49 on: 06/28/2013 03:31 pm »
11:47 (pm LT) was indeed a typo
(source in Telugu)
« Last Edit: 06/28/2013 03:40 pm by input~2 »

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #50 on: 06/28/2013 03:54 pm »
From navigational warning
Quote
PSLV- C22 ROCKET LAUNCHING SCHEDULED
FROM LAUNCH PAD 13-43.9N 080-14.2E BETWEEN 1600 UTC TO 2030 UTC FROM 01 JUL TO 03 JUL 13

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #51 on: 06/29/2013 02:57 am »
« Last Edit: 06/29/2013 02:59 am by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #52 on: 06/29/2013 10:52 pm »
Latest Update

-Propellant filling operations of Fourth Stage (PS4) and Reaction Control (RCT) of First Stage (PS1) are completed.

-Countdown of PSLV-C22/IRNSS-1A Mission commenced at 7:11 hrs(IST)

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #53 on: 06/30/2013 09:35 am »
Live launch broadcast from 1740UTC, July 1, on webcast.gov.in/live

Offline hornbill2007

  • Member
  • Posts: 40
  • Liked: 1
  • Likes Given: 1
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #54 on: 06/30/2013 01:30 pm »
Great news. Can't wait to watch the webcast. PSLV is a indeed a very successful launch vehicle.

Offline Shaurov

  • Member
  • Posts: 4
  • Liked: 0
  • Likes Given: 0
Re: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #55 on: 06/30/2013 08:10 pm »
PSLV C22 / IRNSS 1A Mission Status »

# Preparation for Propellant filling operation of Second Stage (PS2) is under progress.
# Preparation for Mobile Service Tower (MST) withdrawal upto 50m is under progress.
# Countdown activity is progressing normally.

July 01, 2013

#INDIA #ISRO #PSLV #IRNSS

From facebook.com/isro.org

Online Chris Bergin

Moved for live coverage.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline Shaurov

  • Member
  • Posts: 4
  • Liked: 0
  • Likes Given: 0
PSLV C22 / IRNSS 1A Mission Status »

# Propellant filling operation of Second Stage (PS2) is under progress.
# Mobile Service Tower (MST) withdrawal upto 50m is completed.

#INDIA #ISRO #PSLV #IRNSS

From facebook.com/isro.org

Offline beidou

  • Full Member
  • ****
  • Posts: 763
  • Mars
  • Liked: 48
  • Likes Given: 3
Doordarshan to telecast documentary titled “IRNSS 1A - The Star of Navigation” on DD National and Loksabha TV
8.00 AM, 5.00 PM and 11.00 PM - Monday, July 01, 2013

LIVE Telecast and Webcast of Launch will be available on July 01, 2013 from 11:10 PM onwards »
http://webcast.gov.in/live/

From facebook.com/isro.org

Offline jacqmans

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 21749
  • Houten, The Netherlands
  • Liked: 8626
  • Likes Given: 320
Latest Update

-All Propellant filling operations are completed.
« Last Edit: 07/01/2013 08:54 am by jacqmans »
Jacques :-)

Offline jacqmans

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 21749
  • Houten, The Netherlands
  • Liked: 8626
  • Likes Given: 320
« Last Edit: 07/01/2013 09:01 am by jacqmans »
Jacques :-)

Offline jacqmans

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 21749
  • Houten, The Netherlands
  • Liked: 8626
  • Likes Given: 320
Latest Update

-MST withdrawal to final parking (160m) completed.
Jacques :-)

Online Chris Bergin

Another launch and another fine overview article via William Graham:
http://www.nasaspaceflight.com/2013/07/indian-pslv-launch-irnss-r1a/
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

T-60 minutes.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

15 or so mins to the webcast:

http://webcast.gov.in/live/
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Very fluid article! :) #TIL The strap-ons have different TIGs, and the FLP supports on pad assembly (Is this just for the final stage/payload?)

Doesn't happen often enough, but today I can watch a launch in relatively high resolution, on TV, rather than a laggy computer. \m/ :D

PS: Also, can someone quickly refresh me on the specialty of an air-lit SRB? I'm assuming the oxidiser isn't part of the solid fuel, and there's a ram air intake...

Online Chris Bergin

Well that webcast link is awful. Buffertastic.
« Last Edit: 07/01/2013 05:44 pm by Chris Bergin »
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline Artyom.

  • Senior Member
  • *****
  • Posts: 3937
  • Liked: 1416
  • Likes Given: 135

Online Chris Bergin

T-28 minutes.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567

Online Chris Bergin

There's the ISRO boss.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Webcast started

They first aired a documentary explaining the applications of the IRNSS satellite (highlighted GIS, geodetic, and distributed sensor networks), detailed some specifics: the 2 bands (personal, restricted), dual frequency system for position, velocity, time, 17 Range integrity stations, 4 CDMA range stations.

Navigation and station keeping data uplinked from MCF, Hassan and Bhopal, detailing the ISRO centre work divisions. Also mentioned the obligatory national-achievement plug: currently only two countries offering service: US GPS, and Russian GLONASS.

Currently airing the launch commentary from SDSC (and integration footage)
 - Launch window of 20 minutes.
« Last Edit: 07/01/2013 05:47 pm by AJA »

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567

Online Chris Bergin

Here's the eventual constellation.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
T-16 min.

Polling for Go/ No go

Vehicle Director: GO
Waiting for Spacecraft, Range, Centre TTC Network

Edit: All go.
T-15 min, Mission director authorisation received.
« Last Edit: 07/01/2013 05:56 pm by AJA »

Online Chris Bergin

Launch key!
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

T-15 mins.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline seshagirib

  • Full Member
  • ***
  • Posts: 328
  • terra firma
  • Liked: 25
  • Likes Given: 37
mission director authorized launch
vehicle director authorized launch
~T-14 mins
astronaut on space ship earth

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
T-12 ALS initiated.

Offline isro-watch

  • Member
  • Full Member
  • ***
  • Posts: 336
  • Liked: 23
  • Likes Given: 5
Just a few minutes to launch and they are playing some old promo video !

Online Chris Bergin

Just showing what GPS is all about at the moment.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

And we're back live.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Just a few minutes to launch and they are playing some old promo video !

And hamming up the user-applications. IIRC existing GPS radios won't be compatible, and we'd need industry to manufacture competitively priced receivers..

T-7 min now.Just confirmed that this is the first night-time PSLV launch.

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AnimatorRob

  • Member
  • Member
  • Posts: 99
  • Liked: 25
  • Likes Given: 21
Kudos to the Indians for their technical achievements, but with GPS, Galileo, Beidou and GLONASS it's hard to see the need for another navigation system.

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567

Online Chris Bergin

Vehicle on internal power.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Now receiving telemetry at MCF.

Online Chris Bergin

Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Online Chris Bergin

T-120 seconds.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin



Nice resolution. Please grab some launch images! :)
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

T-60 seconds.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
T -30 seconds
Ignition order: (t-3 seconds) RCT, Core, Strap-ons

Real time programs activated.
« Last Edit: 07/01/2013 06:11 pm by AJA »

Online Chris Bergin

Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Online Chris Bergin

LAUNCH!!
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
T+92s
Altitude: 39 km
Air lit strap-ons separated

T+116s
First stage sep
2nd stage ignited

Online Chris Bergin

Staging. Boosters sep.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

Staging. 1-2 Sep. Second stage ignition.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Online Chris Bergin

Nominal at T+180 seconds.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
T+207s
Fairing sep
Altitude: 115 km
Range: 350 km

Online Chris Bergin

Fairing jettison.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Stage 2 sep, Stage 3 ignited.

Online Chris Bergin

Staging. 2-3 Sep.

Third Stage Ignition.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

T+5 mins. Nominal performance on the third stage.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Third stage performance normal
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
T+6min
Alttiude: 135 km
Downrage: 1200 km
Velocity: ~7 km/s

T+400s
PS3 burnout
Coasting started. (290 seconds)

T+7 min
SHAR-1 and 2 LOS
« Last Edit: 07/01/2013 06:18 pm by AJA »

Offline isro-watch

  • Member
  • Full Member
  • ***
  • Posts: 336
  • Liked: 23
  • Likes Given: 5
Coast Phase !

Online Chris Bergin

Third stage burnout. Coasting.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Coasting normal
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
~T+540s
Third stage separation

Online Chris Bergin

Staging. Third stage jettison.
« Last Edit: 07/01/2013 06:20 pm by Chris Bergin »
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
PS3 separated
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
T+10 minutes
Coasting nominal.

T+673s
Fourth stage ignited

Altitude: 190 km
« Last Edit: 07/01/2013 06:23 pm by AJA »

Online Chris Bergin

Fourth Stage ignition.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
4th stage performance normal
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Online Chris Bergin

Nominal performance.
« Last Edit: 07/01/2013 06:25 pm by Chris Bergin »
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Recalling the space debris problem, and the conjunction avoidance launch postponement by 4 min on the last launch. Noted that the problem is more pronounced for SS orbits, but not so much for a this east-ward elliptical GTO/ GSO

Online Chris Bergin

T+15 mins.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
T +924s Vehicle just went orbital a few seconds back,
Velocity ~ 8.1 km/s
Perigee 217 km
Apogee 4276 km
« Last Edit: 07/01/2013 06:28 pm by AJA »

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567

Online Chris Bergin

Nominal performance, heading to separation.

Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

About 60 seconds to go.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Online Chris Bergin

Fourth stage shut down.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

T+20 mins.
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
T+1179s PS4 shutdown

Now Satellite Sep! (didn't catch orbital parameters)

Successful launch. Congratulations all round.
« Last Edit: 07/01/2013 06:32 pm by AJA »

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Sat separated!!!!!
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline isro-watch

  • Member
  • Full Member
  • ***
  • Posts: 336
  • Liked: 23
  • Likes Given: 5
What was the final orbital velocity ?

Online Chris Bergin

Spacecraft Separation!

Another success for ISRO. Congrats to all involved! :)
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
S/C sep

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Pre-emptive warning: I'm going to yell  if someone makes a pun about ISRO finding/taking a new 'direction' in space.

There we go, Chairman ISRO just mentioned new era of space applications. <Yelling>
« Last Edit: 07/01/2013 06:34 pm by AJA »

Offline sanman

  • Senior Member
  • *****
  • Posts: 6011
  • Liked: 1326
  • Likes Given: 8
Insertion successful, time for speeches

Phew - takes a little longer to get to GTO!

Online Chris Bergin

Happy Mr. Radhakrishnan

Thanks to all that helped with the coverage! :)
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
 ;D
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Online Chris Bergin

He's enjoying himself, saying he's like a kid with the countdown.
« Last Edit: 07/01/2013 06:44 pm by Chris Bergin »
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Online Chris Bergin

Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Is that the Prime Minister? He's enjoying himself, saying he's like a kid with the countdown.

No, He is a renowned scientist Prof. Yashpal
« Last Edit: 07/01/2013 06:38 pm by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Online Chris Bergin

Is that the Prime Minister? He's enjoying himself, saying he's like a kid with the countdown.

No, He is a renowned scientist Prof. Yaspal

Thanks. He's enjoyable to listen to!
Support NSF via L2 -- Help improve NSF -- Site Rules/Feedback/Updates
**Not a L2 member? Whitelist this forum in your adblocker to support the site and ensure full functionality.**

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Is that the Prime Minister? He's enjoying himself, saying he's like a kid with the countdown.

No, He is a renowned scientist Prof. Yaspal


Thanks. He's enjoyable to listen to!

+1
« Last Edit: 07/01/2013 06:39 pm by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Is that the Prime Minister?

Talking? Bwahahahahahahaha. Chris, you just added icing on the cake :D

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Is that the Prime Minister?

Talking? Bwahahahahahahaha. Chris, you just added icing on the cake :D

LOL!! :D
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Perigee: 282.464 km (Planned 285 km +/- 5 km)
Apogee: Within 20 km of the Planned 20650 km(+/-75 km)

Inclination offset of 0.46 degrees (within tolerance of 0.5 degrees).
« Last Edit: 07/01/2013 06:55 pm by AJA »

Offline Artyom.

  • Senior Member
  • *****
  • Posts: 3937
  • Liked: 1416
  • Likes Given: 135

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
PSLV C25 & PSLV C23 more to go this year
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
SAT is working normal with solars deployed
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline baldusi

  • Senior Member
  • *****
  • Posts: 8359
  • Buenos Aires, Argentina
  • Liked: 2542
  • Likes Given: 8301
Congratulations to the ISRO! I think it would be nice to have an article about the international agreement of GNSS to move to L band on CDMA. And how each international power is executing the move (Glonass-K and international correction stations) or deployment (GPS III, Galileo, COMPASS, IRNSS and QZSS). By 2020 we'll have four global systems with three extra augmentation systems in Asia!

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
Solar panel deployment confirmed (Phew.. that snap opening makes me flinch every time)
Satellite has power, and operating nominally.

GSLV director now kind of arm-twisted by Chairman into talking about the launch coming up in ~40 days.

LPSC director says they've delivered the indigenous cryo-stage to SHAR. Stacking (and I assume a lot of other integration work) in progress. He also sets a goal of delivering one cryo-stage every 6 months for future GSLV missions.
« Last Edit: 07/01/2013 06:48 pm by AJA »

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
Cryo stage is already at Sriharikota
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
MOM target launch date 21st OCT
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
GSAT also at SHAR. Targeting possible launch on August 6th.

July 25th, Insat 3-D (Meteorological, 6 channel imagers, vertical humidity profiles etc.) from Kourou. Has completed all the tests at Kourou.
Targeting GSAT 7 (More communication transponders) dispatch from ISAC to Kourou on August 9, launch in 3rd/4th week of August.

Mars orbiter still targeting October 21st.

Work going on well on all.

7 satellites (didn't get all of them) before they get on to IRNSS 1-B and the rest of the constellation.

...and that's a wrap.
« Last Edit: 07/01/2013 06:59 pm by AJA »

Offline isro-watch

  • Member
  • Full Member
  • ***
  • Posts: 336
  • Liked: 23
  • Likes Given: 5
If any one had noticed, one of the speakers talked of 10 more IRNSS satellites !!!! I thought it was 7...Are they thinking of going Global ?

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
If any one had noticed, one of the speakers talked of 10 more IRNSS satellites !!!! I thought it was 7...Are they thinking of going Global ?


AS of now, they have planned 11 sats, 7 + 4 more
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline beidou

  • Full Member
  • ****
  • Posts: 763
  • Mars
  • Liked: 48
  • Likes Given: 3
If any one had noticed, one of the speakers talked of 10 more IRNSS satellites !!!! I thought it was 7...Are they thinking of going Global ?


AS of now, they have planned 11 sats, 7 + 4 more

I remember the original plan was 7 (4 GEO + 3 IGSO), what is for the another four?

Offline antriksh

  • Full Member
  • ****
  • Posts: 758
  • Liked: 132
  • Likes Given: 107
If any one had noticed, one of the speakers talked of 10 more IRNSS satellites !!!! I thought it was 7...Are they thinking of going Global ?


AS of now, they have planned 11 sats, 7 + 4 more

I remember the original plan was 7 (4 GEO + 3 IGSO), what is for the another four?

Backup + Augmentation
« Last Edit: 07/01/2013 07:08 pm by antriksh »
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline beidou

  • Full Member
  • ****
  • Posts: 763
  • Mars
  • Liked: 48
  • Likes Given: 3
If any one had noticed, one of the speakers talked of 10 more IRNSS satellites !!!! I thought it was 7...Are they thinking of going Global ?




AS of now, they have planned 11 sats, 7 + 4 more

I remember the original plan was 7 (4 GEO + 3 IGSO), what is for the another four?

Backup + Augmentation

Ok, the augmentation are the three GAGAN satellites (or payloads), two of them are already launched, the remaining one will be up soon.
« Last Edit: 07/01/2013 07:09 pm by beidou »

Offline isro-watch

  • Member
  • Full Member
  • ***
  • Posts: 336
  • Liked: 23
  • Likes Given: 5
GSAT also at SHAR. Targeting possible launch on August 6th.

July 25th, Insat 3-D (Meteorological, 6 channel imagers, vertical humidity profiles etc.) from Kourou. Has completed all the tests at Kourou.
Targeting GSAT 7 (More communication transponders) dispatch from ISAC to Kourou on August 9, launch in 3rd/4th week of August.

Mars orbiter still targeting October 21st.

Work going on well on all.

7 satellites (didn't get all of them) before they get on to IRNSS 1-B and the rest of the constellation.

...and that's a wrap.

They are not exactly 7 satellites but 7 missions..
IRNSS-1A      Jul-1
INSAT-3D      Jul-24
GSAT-14         Aug-6
GSAT-7         Aug-3/4 week
MOM (Mars Orbiter Mission)   Oct-21
SPOT-7 (France)                  Dec
IRNSS-1B                            Mar

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
I heard during the speeches that they are aiming at launching IRNSS-1B, 1C and 1D in 2014
« Last Edit: 07/01/2013 07:16 pm by input~2 »

Offline isro-watch

  • Member
  • Full Member
  • ***
  • Posts: 336
  • Liked: 23
  • Likes Given: 5
I heard during the speeches that they are aiming at launching IRNSS-1B, 1C and 1D in 2014

Yes, they said that.
Considering no major missions like Mars, GSLVs, Remote sensing in 2014, It is quite possible.


Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Targeting GSAT 7 (More communication transponders) dispatch from ISAC to Kourou on August 9, launch in 3rd/4th week of August.
I heard him saying "GSAT 7 launch in 3rd/4th week of August, tentatively on August 24"

Offline Shaurov

  • Member
  • Posts: 4
  • Liked: 0
  • Likes Given: 0
Exactly at 11.41 PM PSLV C22 standing around 44 metres tall and weighing around 320 tonnes, roared off, turning the dark skies bright orange.
https://www.facebook.com/photo.php?fbid=10151588422943224&set=a.10151576594773224.1073741832.32563513223

Orange Smoke Trail of PSLV C22.
https://www.facebook.com/photo.php?fbid=10151588423198224&set=a.10151576594773224.1073741832.32563513223

From facebook.com/isro.org

Offline sanman

  • Senior Member
  • *****
  • Posts: 6011
  • Liked: 1326
  • Likes Given: 8
Apparently, this was ISRO's first midnight launch:


Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
2 objects have been catalogued by USSTRATCOM.
Orbits from initial tles:
2013-034A/39199 in 283 x 20548 km x 17.911° (could be the S/C)
2013-034B/39200 in 282 x 20911 km x 17.792° (could be stage 4)
« Last Edit: 07/02/2013 07:34 pm by input~2 »

Offline Ben the Space Brit

  • Senior Member
  • *****
  • Posts: 7206
  • A spaceflight fan
  • London, UK
  • Liked: 806
  • Likes Given: 900
I'm guessing that the IRNSS-R1A spacecraft will perform the perigee raising burns itself.  How long will it take until it is in a near-circular 20k orbit?

What's the procedure for disposing of the fourth stage? Will it have to remain in orbit until that decays or is there enough propellent on board to lower the perigee so repeated aerobraking brings it down more quickly?
« Last Edit: 07/02/2013 10:41 am by Ben the Space Brit »
"Oops! I left the silly thing in reverse!" - Duck Dodgers

~*~*~*~

The Space Shuttle Program - 1981-2011

The time for words has passed; The time has come to put up or shut up!
DON'T PROPAGANDISE, FLY!!!

Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212

Orange Smoke Trail of PSLV C22.
https://www.facebook.com/photo.php?fbid=10151588423198224&set=a.10151576594773224.1073741832.32563513223

From facebook.com/isro.org

That is an awesome picture. Really want them to start putting cameras on the LVs. Definitely for the GSLV atleast.. it'd be so useful for engineering analysis. Can't believe they haven't done so in all this time.

I'm guessing that the IRNSS-R1A spacecraft will perform the perigee raising burns itself.  How long will it take until it is in a near-circular 20k orbit?

Perigee raising burns, as well as orbit circularising apogee burns. Don't know how long it'll take. They could initiate these burns after a delay as well, couldn't they - though there's probably no reason to wait.. I mean the thing is orbital after all (Aero-braking orbital decay notwithstanding).

What's the procedure for disposing of the fourth stage? Will it have to remain in orbit until that decays or is there enough propellent on board to lower the perigee so repeated aerobraking brings it down more quickly?

I don't think the fourth stage is going to perform any de-orbit burns. The rocket body from the SARAL launch is still in orbit. (n2yo.com)
« Last Edit: 07/02/2013 11:27 am by AJA »

Offline Satori

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 14480
  • Campo do Geręs - Portugal
  • Liked: 2017
  • Likes Given: 1178

Offline isro-watch

  • Member
  • Full Member
  • ***
  • Posts: 336
  • Liked: 23
  • Likes Given: 5

Offline sanman

  • Senior Member
  • *****
  • Posts: 6011
  • Liked: 1326
  • Likes Given: 8
Here's a little video produced by ISRO outlining the benefits of IRNSS:


Offline AJA

  • Full Member
  • ****
  • Posts: 889
  • Per Aspera Ad Ares, Per Aspera Ad Astra
  • India
  • Liked: 146
  • Likes Given: 212
UPDATE
July 08, 2013

Quote

Orbit raising manoevers completed with fifth Apogee Motor Firing (AMF) on July 06, 2013 at 16:57 hrs (IST) and performance is normal.

Satellite is in Geo-Synchronous Orbit (GSO) with 27 deg inclination at 44 deg E longitude.

Present orbital parameters are : apogee 35870 km, perigee 35484 km and orbital period is 23h 50m.

All the spacecraft subsystem are evaluated and functioning normal.

I just happened to read this blogpost (about station keeping at a defined longitude in geostationary orbit) a few days back. Applying it in the context of IRNSS, I'm thinking we're missing a trick in not exploiting the stable 75.08 deg E longitude. I know it's not a lot of delta-v, but the stable spot is RIGHT OVER US! Yes, the spot might also attract all sorts of debris, but at 36,000 km out, is there much debris at all? The kind that wouldn't cede to a relatively massive satellite?

Also, I found it pretty cool how much the seas can hide, and how rapid the terrain change is underwater. For example, the Mariana trench is at 142 deg East, but the 165 deg E point is an unstable one - dominated by the high mass-cons of the volcanic 'Pacific ring of fire'.
« Last Edit: 07/08/2013 10:38 am by AJA »

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
2013-034A/39199 now in
35461 x 35887 km x 27.02° (epoch July 11, 2129UTC)
Descending node longitude: 51.7°E
« Last Edit: 07/13/2013 07:00 am by input~2 »

Offline beidou

  • Full Member
  • ****
  • Posts: 763
  • Mars
  • Liked: 48
  • Likes Given: 3
Did the satellite start broadcasting navigation signals? Have the signals been received?

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 6810
  • Liked: 1539
  • Likes Given: 567
Did the satellite start broadcasting navigation signals? Have the signals been received?
"July 19, 2013, IRNSS-1A navigation payload testing in a week"

Offline kanaka

  • Member
  • Posts: 91
  • Liked: 4
  • Likes Given: 0
Did the satellite start broadcasting navigation signals? Have the signals been received?

http://www.gpsworld.com/indian-regional-gnss-satellite-starts-signal-transmissions/

Offline vyoma

  • Full Member
  • ****
  • Posts: 1878
  • India
  • Liked: 850
  • Likes Given: 127
Re: LIVE: PSLV C22, IRNSS-R1A, FLP, July 1, 2013 (1811UTC)
« Reply #188 on: 01/30/2017 01:59 am »
Atomic clocks on indigenous navigation satellite develop snag

Quote
In the NavIC, a constellation of seven satellites, one of the three crucial rubidium timekeepers on IRNSS-1A spacecraft failed six months ago. The other two followed subsequently.

Quote
A. S. Kiran Kumar, Chairman of the Indian Space Research Organisation, confirmed the glitch in the clocks but clarified that the satellite was otherwise all right, and the rest of the satellites were performing its core function of providing accurate position, navigation and time. However, without its clocks, the IRNSS-1A “will give a coarse value. It will not be used for computation. Messages from it will still be used.”

Quote
“There are some anomalies in the atomic clock system on board. We are trying to restart it. Right now we are working out a mechanism for operating it,” he told The Hindu.

The problem is only with the clock system of one spacecraft. The signals are all coming, we are getting the messages, everything else is working and being used, except the stability portion which is linked to the clock,” he said. A minimum of four working satellites was sufficient to realise the full use of the navigation system”.

Quote
NavIC has 21 atomic clocks on seven spacecraft. “How would the other clocks fare? Would ISRO reconsider the supplier of its atomic clocks? Such questions are not easy to answer. Generally any [space] hardware is an issue. We have to find ways of going around it,” he said.

Quote
The troubled IRNSS-1A spacecraft was put in space in July 2013 and has an expected life span of 10 years.

 

Advertisement NovaTech
Advertisement Northrop Grumman
Advertisement
Advertisement Margaritaville Beach Resort South Padre Island
Advertisement Brady Kenniston
Advertisement NextSpaceflight
Advertisement Nathan Barker Photography
0