Re: Nav Warnings for Plesetsk space launch

From: Bob Christy via Seesat-l <seesat-l_at_lists.seesatmail.org>
Date: Fri, 17 May 2024 11:15:19 +0100
I came up with a similar inclination when matching the Pacific drop zone to the likely ground track so the final stage presumably involved some yaw steering.

More interesting is that the Local Time at the Descending Node is 13:00 making it coplanar with USA 314 (48247/2021-032A) a US government/military imaging satellite.

Earlier launches matching US spysats were Cosmos 2542 in the same plane as USA-245, and the ongoing Cosmos 2558 mission currently 'shadowing' USA-326.

Robert Christy

> On 17 May 2024, at 09:44, Marco Langbroek via Seesat-l <seesat-l_at_lists.seesatmail.org> wrote:
> 
> 
> The payload has now been catalogued as object 59773, 2024-092A, in a 97.25 deg inclined, 451 x 436 km sun-synchronous orbit (so my inclination estimate was 0.5 degrees off).
> 
> - Marco
> 
> 
> Op 14-5-2024 om 09:13 schreef Marco Langbroek via Seesat-l:
>> The launch azimuth indicates an inclination near 97.75 degrees. My orbital guess, assuming an orbital altitude ~500 km:
>> Russian SSO IMINT               for launch on 16 May 2024 20:00:00 UT
>> 1 70000U 24999A   24137.83333333  .00000000  00000-0  00000-0 0    09
>> 2 70000 097.7500 232.3966 0010908 075.7763 325.4205 15.22766913    04
>> - Marco
> 
> 
> -----
> Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
> e-mail: sattrackcam_at_langbroek.org
> 
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