Re: NROL-85

From: Marco Langbroek via Seesat-l <>
Date: Mon, 18 Apr 2022 13:02:31 +0200
Op 18-4-2022 om 12:07 schreef E. Visser via Seesat-l:
> Using the TLE of Marco and his hint to look about 5 minutes earlier, I
> found an unknown object going in the right direction at the right speed
> of NROL-85. It is very dim, and hard to measure. 
Phase angle plays a role here.

On the first pass (19:59 UT) I observed, when it passed in the southern half of 
the sky opposite the sun, it was photographically quite bright. On the second 
pass (21:49 UT), in the northern half of the sky with less favourable phase 
angle, it was much fainter.

- Marco

Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.

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Received on Mon Apr 18 2022 - 06:03:15 UTC

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