Author Topic: HySIS & 30 foreign small sats - PSLV C43- FLP - November 29, 2018 (04:27 UTC)  (Read 20876 times)

Online zubenelgenubi

  • Senior Member
  • *****
  • Posts: 2172
  • Arc to Arcturus, then Spike to Spica
  • Commonwealth of Virginia
  • Liked: 619
  • Likes Given: 2501
Re: HySIS & 30 foreign small sats - PSLV C43 - October 2018
« Reply #20 on: 09/17/2018 07:36 pm »
What version of PSLV will this launch use?

Probably PSLV-XL.
Yes.
I see that Gunter has changed his LV assignment for PSLV C43 to the PSLV-CA version.

Am I right to deduce that this is because the primary payload, HySIS, is using the SSB-2 microsatellite bus?  And, even 30 more secondary passengers would not overfill the PSLV-CA payload mass limits to a SSO?

(SARAL also used this satellite bus and was launched to a similar polar orbit, with secondary payloads.  SARAL massed only 346 kg.)
« Last Edit: 09/17/2018 07:36 pm by zubenelgenubi »
Support your local planetarium!

Offline Skyrocket

  • Extreme Veteran
  • Senior Member
  • *****
  • Posts: 2177
  • Frankfurt am Main, Germany
  • Liked: 356
  • Likes Given: 96
Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #21 on: 09/17/2018 08:11 pm »
What version of PSLV will this launch use?

Probably PSLV-XL.
Yes.
I see that Gunter has changed his LV assignment for PSLV C43 to the PSLV-CA version.

Am I right to deduce that this is because the primary payload, HySIS, is using the SSB-2 microsatellite bus?  And, even 30 more secondary passengers would not overfill the PSLV-CA payload mass limits to a SSO?

(SARAL also used this satellite bus and was launched to a similar polar orbit, with secondary payloads.  SARAL massed only 346 kg.)

Exactly - the small mass of all payloads is a very strong hint, that the CA version will be used.

Offline K210

  • Full Member
  • ***
  • Posts: 385
  • Liked: 91
  • Likes Given: 12
Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #22 on: 10/03/2018 02:34 am »
Launch date has slipped to mid november according to the reaktor hello world cubesat website (one of the payloads on C43).

Source: https://reaktorspace.com/reaktor-hello-world/

Offline K210

  • Full Member
  • ***
  • Posts: 385
  • Liked: 91
  • Likes Given: 12
Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #23 on: 10/03/2018 02:38 am »
Also this might end up being a XL variant rather than a CA variant reason being that a extra 450 kg payload was intended to fly on C42 (Which was supposed to be XL variant rather than CA). If that extra 450 kg payload is included on this mission than this will become a XL variant due to payload mass being too heavy for CA and G variant of PSLV being retired.

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 5829
  • Liked: 626
  • Likes Given: 317
Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #24 on: 10/03/2018 07:02 am »
Launch date has slipped to mid november according to the reaktor hello world cubesat website (one of the payloads on C43).

Source: https://reaktorspace.com/reaktor-hello-world/
The countdown on that page points to a launch time of November 22, 8am (Helsinki local time)

Offline K210

  • Full Member
  • ***
  • Posts: 385
  • Liked: 91
  • Likes Given: 12
According to local media launch is set for November 27th from first launch pad. HySIS (Main payload) has already reached shar.

Source: http://www.andhrabhoomi.net/content/nation-8122
« Last Edit: 10/27/2018 10:40 am by K210 »

Online zubenelgenubi

  • Senior Member
  • *****
  • Posts: 2172
  • Arc to Arcturus, then Spike to Spica
  • Commonwealth of Virginia
  • Liked: 619
  • Likes Given: 2501
Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #26 on: 10/27/2018 07:05 pm »
Also this might end up being a XL variant rather than a CA variant reason being that a extra 450 kg payload was intended to fly on C42 (Which was supposed to be XL variant rather than CA). If that extra 450 kg payload is included on this mission than this will become a XL variant due to payload mass being too heavy for CA and G variant of PSLV being retired.

HySIS is using the SSB-2 microsatellite bus.  SARAL used the same bus and massed 346 kg.

Gunter gives a payload capacity of 1100 kg to a PSLV-CA to SSO.

346 kg + 450 kg = 796 kg

796 kg < 1100 kg by approximately 300 kg.

Unless there are other, unknown-to-us factors that consume over 300 kg of performance, I hypothesize that this launch will use PSLV-CA.
« Last Edit: 10/27/2018 08:28 pm by zubenelgenubi »
Support your local planetarium!

Offline K210

  • Full Member
  • ***
  • Posts: 385
  • Liked: 91
  • Likes Given: 12
Re: HySIS & 30 foreign small sats - PSLV C43 - November 2018
« Reply #27 on: 10/28/2018 12:57 am »
Also this might end up being a XL variant rather than a CA variant reason being that a extra 450 kg payload was intended to fly on C42 (Which was supposed to be XL variant rather than CA). If that extra 450 kg payload is included on this mission than this will become a XL variant due to payload mass being too heavy for CA and G variant of PSLV being retired.

HySIS is using the SSB-2 microsatellite bus.  SARAL used the same bus and massed 346 kg.

Gunter gives a payload capacity of 1100 kg to a PSLV-CA to SSO.

346 kg + 450 kg = 796 kg

796 kg < 1100 kg by approximately 300 kg.

Unless there are other, unknown-to-us factors that consume over 300 kg of performance, I hypothesize that this launch will use PSLV-CA.

Your forgetting the 31 commercial co-passenger payloads. The 450 kg payload is a single payload that was supposed to go up on C42 mission back in september so it may launch on this pslv instead in addition to the other 31 co-passenger payloads. It should add a few hundred kg to the overall payload mass. Also this mission will involve multiple restarts of the upper stage so they may choose the XL variant for extra safety margin. Two similar missions (C38 in june 2017 and C40 in january 2018) were both XL variants so make of that what you will.
« Last Edit: 10/28/2018 12:59 am by K210 »

Offline K210

  • Full Member
  • ***
  • Posts: 385
  • Liked: 91
  • Likes Given: 12

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 5829
  • Liked: 626
  • Likes Given: 317
There was a recent reference in the local press to a launch of HySIS at the end of November with PSLV C43

source


Online gongora

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 4441
  • US
  • Liked: 4004
  • Likes Given: 2270
TYVAK FCC application 0881-EX-CN-2018 (received and pending on Nov. 8)
6U cubesat for GPS radio occultation
« Last Edit: 11/09/2018 01:41 pm by gongora »


Offline K210

  • Full Member
  • ***
  • Posts: 385
  • Liked: 91
  • Likes Given: 12
What version of PSLV will this launch use?

Probably PSLV-XL.
Yes.

Spaceflight confirm to me it's flying in the CA configuration.

That would be a first if it turns out to be true. The CA config of PSLV has never carried more than 10 satellites nor has it ever undertaken a upper stage restart.

Offline K210

  • Full Member
  • ***
  • Posts: 385
  • Liked: 91
  • Likes Given: 12
Some information on the primary payload "HySIS"

Offline K210

  • Full Member
  • ***
  • Posts: 385
  • Liked: 91
  • Likes Given: 12
Tentative launch date is ~2 weeks from now according to isro chairmans post launch speech after the recent Mk-3 D2 launch. @1:25:00 onwards


Online zubenelgenubi

  • Senior Member
  • *****
  • Posts: 2172
  • Arc to Arcturus, then Spike to Spica
  • Commonwealth of Virginia
  • Liked: 619
  • Likes Given: 2501
Cross-post; launch date NET November 29, NOTAM restrictions daily 04:00-08:00 UTC:
https://www.reddit.com/r/ISRO/comments/9xb41y/a_partial_notam_for_pslv_c43_hysis_is_out/?utm_source=dlvr.it&utm_medium=twitter

04:00 UTC = 9:30 am IST

Given the SSO information in the attached image with satellite information up-thread, and the NOTAM, is it possible to deduce a launch time-of-day?
« Last Edit: 11/16/2018 02:26 am by zubenelgenubi »
Support your local planetarium!

Online Salo

  • Senior Member
  • *****
  • Posts: 3542
  • Odessa, Ukraine
  • Liked: 428
  • Likes Given: 888
Re: Indian launch schedule
« Reply #37 on: 11/19/2018 01:56 pm »
https://www.reddit.com/r/ISRO/comments/9yh6c2/full_notam_for_pslvc43hysis_launch/?utm_source=dlvr.it&utm_medium=twitter
Quote
A3107/18 - PSLV-C43 ROCKET LAUNCH FM SHAR RANGE,SRIHARIKOTA WILL TAKE PLACE AS PER FLW DETAILS.THE LAUNCH WILL BE ON ANY ONE OF THE DAY DRG THIS PERIOD.ACTUAL DATE OF LAUNCH WILL BE INTIMATED 24 HR IN ADVANCE THROUGH A SEPARATE NOTAM. LAUNCH PAD COORD: 13 43.9N 080 14.2E NO FLT IS PERMITTED OVER THE DNG ZONES. A.DNG ZONE-1 IS A CIRCLE OF 10NM AROUND THE LAUNCH PAD B.DNG ZONE-2 IS A RECTANGULAR AREA BOUNDED BY: 1200N 08100E 1230N 08130E 1145N 08205E 1115N 08135E C.DNG ZONE-3 IS A RECTANGULAR AREA BOUNDED BY 0935N 08245E 0935N 08320E 0825N 08320E 0825N 8245E D.DNG ZONE-4 IS A RECTANGULAR AREA BOUNDED BY: 0000S 08135E 0020S 08255E 0405S 08210E 0345S 08050E E.DNG ZONE-5 IS A RECTANGULAR AREA BOUNDED BY: 2515S 07445E 2555S 07730E 3500S 07520E 3645S 07200E ROUTES AFFECTED IN CHENNAI FIR: W20, A465, P574, B466, L896, N563, N564, Q11, Q23,Q24, V3, V4, V6, V8, AND V9 END PART 1 OF 5. 0400-0800, 29 NOV 04:00 2018 UNTIL 11 DEC 08:00 2018. CREATED: 19 NOV 12:36 2018

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 5829
  • Liked: 626
  • Likes Given: 317
F3121/18 -  FLW RECEIVED FROM GOVERNMENT OF INDIA: PSLV C-43 ROCKET LAUNCH FROM INDIA IS NOW SCHEDULED DANGER ZONES ARE  BOUNDED BY S00 00 E081 35 S00 20 E082 55 S04 05 E082 10 S03 45 E080 50 TO BEGINNING AND S25 15 E074 45 S25 55 E077 30 S35 00 E075 20 S36 45 E072 00 TO BEGINNING. SFC - UNL, DAILY 0400-0800, 29 NOV 04:00 2018 UNTIL 11 DEC 08:00 2018. CREATED: 15 NOV 09:48 2018

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 5829
  • Liked: 626
  • Likes Given: 317
22 NOV 18
OA 83
INDIAN NAV WARNING (INW)409.
BAY OF BENGAL AND INDIAN OCEAN.
CHARTS IN 33 313 356 357 INT 71 73.
1. PSLV - C43 LAUNCH SCHEDULED FROM 29 NOV - 01 DEC 18 FROM 0400 - 0800
UTC.
2. DANGER ZONE AS FOLLOWS.
ZONE-1: CIRCLE OF 10 NM FROM 13-43.9N 080-14.2E
ZONEľ2: 12-00N 081-00E, 12-30N 081-30E, 11-45N 082-05E, 11-15N 081-35E
ZONEľ3: 09-35N 082-45E, 09-35N 083-20E, 08-25N 083-20E, 08-25N 082-45E
ZONEľ4: 00-00S 081-35E, 00-20S 082-55E, 04-05S 082-10E, 03-45S 080-50E
ZONEľ5: 25-15S 074-45E, 25-55S 077-30E, 35-00S 075-20E, 36-45S 072-00E

Tags: