Author Topic: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)  (Read 24302 times)

Offline vineethgk

  • Full Member
  • ****
  • Posts: 880
  • India
  • Liked: 182
  • Likes Given: 265
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #200 on: 04/12/2018 10:32 am »
A few more shots added to the gallery later.. The last one could almost be mistaken for a missile launch in the first look.  ;)

Source
« Last Edit: 04/12/2018 10:33 am by vineethgk »

Offline vineethgk

  • Full Member
  • ****
  • Posts: 880
  • India
  • Liked: 182
  • Likes Given: 265
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #201 on: 04/12/2018 11:38 am »
Details for first planned burn
Quote
Apr 12, 2018 : The first orbit raising operation of IRNSS-1I is planned to be carried out at 4:15 hr IST on April 13, 2018. The targeted perigee height is 322 km and apogee height is 35887 km
Source
« Last Edit: 04/12/2018 11:39 am by vineethgk »

Offline vineethgk

  • Full Member
  • ****
  • Posts: 880
  • India
  • Liked: 182
  • Likes Given: 265
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #202 on: 04/13/2018 01:43 am »
Quote
The first orbit raising operation of IRNSS-1I is successfully carried out at 4:19 hr IST on April 13, 2018

The achieved perigee height is 315 km and apogee height is 35809 km.

The second orbit raising operation of IRNSS-1I is planned to be carried out around 20:00 hr IST on April 13, 2018. The targeted perigee height is 8536 km and apogee height is 35793 km.
Source

Offline vineethgk

  • Full Member
  • ****
  • Posts: 880
  • India
  • Liked: 182
  • Likes Given: 265
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #203 on: 04/13/2018 05:07 pm »
Quote
The second orbit raising operation of IRNSS-1I is successfully carried out at 20:04 hr IST on April 13, 2018
Source

Offline vineethgk

  • Full Member
  • ****
  • Posts: 880
  • India
  • Liked: 182
  • Likes Given: 265
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #204 on: 04/14/2018 01:51 am »
New orbital parameters for IRNSS-1I after the previous (second) burn of LAM.

Quote
The achieved perigee height is 8683 km and apogee height is 35733 km.

The third orbit raising operation of IRNSS-1I is planned to be carried out at around 22:45 hr IST on April 14, 2018. The targeted perigee height is 31,540 km and apogee height is 35,797 km.
Source

The third orbit raising operation of IRNSS-1I is successfully carried out at 22:50 hr IST on April 14, 2018. The achieved perigee height is 31,426 km and apogee height is 35,739 km
The fourth and the final orbit raising operation of IRNSS-1I is planned to be carried out at around 21:20 hr IST on April 15, 2018.  The targeted perigee height is 35,381 km and apogee height is 35,793 km.

https://www.isro.gov.in/update/15-apr-2018/third-orbit-raising-operation-of-irnss-1i-successfully-carried-out-2250-hr-ist

Online Olaf

  • Full Member
  • ****
  • Posts: 1905
  • Germany
  • Liked: 620
  • Likes Given: 243
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #206 on: 04/15/2018 05:44 pm »
https://www.isro.gov.in/update/15-apr-2018/fourth-and-final-orbit-raising-operation-of-irnss-1i-successfully-carried-out
Quote
The fourth and the final orbit raising operation of IRNSS-1I is successfully carried out at 21:05 hr IST on April 15, 2018.

Offline vineethgk

  • Full Member
  • ****
  • Posts: 880
  • India
  • Liked: 182
  • Likes Given: 265
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #207 on: 04/15/2018 11:06 pm »
Orbital parameters updated after final burn
Quote
The fourth and the final orbit raising operation of IRNSS-1I is successfully carried out at 21:05 hr IST on April 15, 2018. The achieved perigee height is 35,462.9 km and apogee height is 35,737.8 km
Source

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 5817
  • Liked: 621
  • Likes Given: 313
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #208 on: 04/17/2018 08:06 pm »
Orbital parameters updated after final burn
Quote
The fourth and the final orbit raising operation of IRNSS-1I is successfully carried out at 21:05 hr IST on April 15, 2018. The achieved perigee height is 35,462.9 km and apogee height is 35,737.8 km
Source
Well, at epoch April 15 17:18 UTC (22:48 IST) NORAD had it in an orbit of 33,150 x 35,980 km x 28.34 
and from last available TLE, at epoch April 16 17:26 UTC, in an orbit of 35,843 x 36,308 km x 28.55

Is NORAD tracking the right object or is everything OK with the satellite?
« Last Edit: 04/17/2018 09:23 pm by input~2 »

Offline K210

  • Full Member
  • ***
  • Posts: 374
  • Liked: 89
  • Likes Given: 12
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #209 on: 04/18/2018 12:38 pm »
Good to see IRNSS-1I has reached a geostationary orbit without any problems

Online eeergo

Good to see IRNSS-1I has reached a geostationary orbit without any problems

1I is in an inclined geosynchronous orbit (not geostationary) - but I second the sentiment :)
-DaviD-

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 5817
  • Liked: 621
  • Likes Given: 313
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #211 on: 04/18/2018 04:26 pm »
Table of periods derived from all TLEs published as of today

EPOCH                              PERIOD
2018-04-11 19:53:39    6h 02m 23s
2018-04-12 01:54:53    6h 02m 36s
2018-04-12 10:45:28    6h 02m 36s
2018-04-12 21:29:07    6h 02m 36s
2018-04-13 08:26:21    10h 32m 01s
2018-04-14 15:49:57    13h 21m 40s
2018-04-15 17:18:22    22h 54m 08s
2018-04-16 17:03:42    28h 36m 11s
2018-04-16 17:26:10    24h 10m 51s

Geosynchronous period is 23h 56m 04s

Offline input~2

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 5817
  • Liked: 621
  • Likes Given: 313
Re: LIVE: IRNSS-1I - PSLV-XL (C41) - April 11, 2018 (22:34 UTC)
« Reply #212 on: 04/30/2018 07:15 pm »
Orbital period is now 23h56m09s

Tags: