Need help recovering an UNID geosynchronous flasher

From: ronlee--- via Seesat-l <>
Date: Fri, 3 Dec 2021 21:09:46 -0700
On 3 December 2021 around 0049 UT I was waiting for a pass
of the just deployed Starlink G4-3 objects.  While scanning
I saw a flash and continued to see flashes during the time
waiting for and observing the Falcon 9 second stage.  At one
point the flash was bright enough to possibly be visible to the
naked eye.  I was using 7x50 binoculars.

One day later (this evening) I started looking for it nine minutes
earlier.  Scanning did not pick up any flashes and none were
observed for six minutes after the flash time of the day before.

I ran Skymap with a current complete element set from Space Track
and did not find a match.

Details on yesterday's observation follows:

Around 0049 UT on 3 December 2021 [5:49 PM MST..UT-7 on 2 Dec 2021 local)

RA:  1 hr, 41.6 min.  Dec -11.45 degrees

Az/El ~130/24

Location:  Falcon, CO, -104.5614, 38.9478, 2073  (104.5614 W)

My assumption is that this in in supersynchronous orbit so would
arrive at the same AZ/el somewhat earlier in following days.

It is possible that nine minutes earlier was not adequate.  Does
anyone have a guess how much sooner I should look on following

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Received on Fri Dec 03 2021 - 22:10:51 UTC

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