RE: Soyuz TMA-19M launch orbit estimations

From: Colin Knight via Seesat-l <seesat-l_at_satobs.org>
Date: Tue, 15 Dec 2015 15:54:56 +0000
Comms heard on 121.75 MHZ from 15:39 - 1542 UTC here at south coast of UK (50.58N, 1.21W)

Cheers.

======= On 14-Decamber-2015, 22:59:24 you wrote: =======

>TsUP published the delta-v maneuver data:
>
>http://www.mcc.rsa.ru/sojuztma_19m/start.htm
>
>So, this is the revised estimation:
>
>Hello all;
>
>The Soyuz TMA-19M spacecraft is expected to take off tomorrow 2015/12/15 at
>11:03:09 UTC from Tyura-Tam Gagarin's pad. It will fly with the Soyuz-FG
>rocket and they will try the fast 4-orbits renzezvous. Docking is aimed to
>be at 17:24:09 UTC +- 3 minutes.
>
>This TLE is the initial orbit estimation, just after spacecraft release
>after SC separation from rocket, about nine minutes after launch:
>
>
>SOYUZ-TMA 19M #0                                         198 X 214 km
>1 70000U 15500A   15349.46667824 0.00000000  00000-0  00000+0 0    05
>2 70000  51.6440 259.2934 0011851  54.4267  28.0135 16.25069103    09
>
>Epoch is set at spacecraft separation & orbit enter time.
>
>At 11:48:15 UTC is expected to occur the fisrt maneuver. This orbit is
>valid from first maneuver till the second one, at 12:32:29 UTC:
>
>SOYUZ-TMA 19M #1                                         214 X 295 km
>1 70001U 15501A   15349.49306713 0.00000000  00000-0  00000+0 0    07
>2 70001  51.6439 259.1479 0061649 228.9167   7.9357 16.07220174    07
>
>At 12:32:29 UTC the second maneuver will be made. This elset is valid from
>this time till ~13:06 UTC:
>
>SOYUZ-TMA 19M #2                                         294 X 296 km
>1 70002U 15502A   15349.52362269 0.00000000  00000-0  00000+0 0    01
>2 70002  51.6439 258.9836 0001643 293.3363 120.3768 15.92638602    02
>
>There are no more data on TsUP's page about the burns. Hoewer, this third
>elset could be reasonably close since 13:06 UTC till near-docking times:
>
>SOYUZ-TMA 19M #3                                         295 X 375 km
>1 70003U 15503A   15349.54670139 0.00000000  00000-0  00000+0 0    03
>2 70003  51.6441 258.8618 0059201 185.5872   0.5206 15.78391758    01
>
>Time uncertainty is expected to be about a minute since launch till docking
>and several degrees on track error on high elevation skies.
>
>
>Soyuz-FG's third stage should re-enter in the next few days.
>
>
>There are good passes over Europe about 1-2 hours before docking. Also,
>there are good visual passes over Asia in the first two revolutions,
>specially over Baikonur.
>If clouded, Marco Langbroek informed on Twitter about the frequencies of
>the Soyuz, that they are activated on Netherlands because the spacecraft
>enters in range of russian tracking stations:
>
>https://twitter.com/Marco_Langbroek/status/675378691015340032
>https://twitter.com/Marco_Langbroek/status/675378849149005826
>
>
>Be good!
>
>Jon.


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Received on Tue Dec 15 2015 - 09:56:22 UTC

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