Re: possible satellite ID as astronomical transient

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Wed, 29 Mar 2017 20:40:23 +0200
Op 29-3-2017 om 18:24 schreef William Keel via Seesat-l:
> Some of us have been looking at amateur images of what may be an astronomical transient source, and we’d like to
> rule out a satellite glint before getting too far along. It appears in a 30-second exposure, and the slightly defocussed
> image allows maybe a couple of arcminutes of N-S motion. So for the hive mind - from 
> Lat: 53.5 degree N
> Longitude: 2.24 degrees W
> Time: 5/29/16 22:10 GMT
> was there a plausible satellite pass within a couple of degrees of Mizar? (More precisely, 
> RA 13 32 07.4 
> dec +54 11 42
> equinox 2000 )
> 
> This appears in only one of a series of 6 exposures, and would have to be either a high flier or very fast flash
> not to show more motion.
> 
> Thanks,
> 
> Bill Keel


Hi Bill,

At 22:10 (do you also have the seconds with that? ), objects near that position
were:

NAVSTAR 66 (USA 232)   RA 14 01 42  dec +55 35 23   moving at about 38' degrees
per minute

Molniya 1-86     RA 13 44 16  dec +58 15 52    moving at about 1.5 degrees per
minute

Kosmos 2442 (GLONASS)   RA 14 39 18   dec +53 28 42    moving at about 40' per
minute

With more positional uncertainty, as the elements used were over two weeks old,
there is also the calssified (hence only amateur orbits available) object:

USA 259         RA  14 13 49   dec +60 19 12 <--- with uncertainty.  moving at
about 3.9' per minute.

- Marco


-----
Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
e-mail: sattrackcam_at_langbroek.org

Cospar 4353 (Leiden):     52.15412 N, 4.49081 E (WGS84), +0 m ASL
Cospar 4355 (Cronesteyn): 52.13878 N, 4.49937 E (WGS84), -2 m ASL
Station (b)log: http://sattrackcam.blogspot.com
Twitter: _at_Marco_Langbroek
-----








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Received on Wed Mar 29 2017 - 13:40:59 UTC

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