Nauka, Proton and associated debris seen

From: Marco Langbroek via Seesat-l <>
Date: Thu, 22 Jul 2021 00:03:41 +0200
With two guests I observed the ISS, followed by two bright objects (Proton rb
and Nauka) and three fainter debris objects near the first bright object (Proton
rb), in a partly clouded sky.

After the ISS, we saw a bright very fast naked eye object. On the video, we
could see it was closely accompanied by three fainter objects. This was probably
the Proton rb and associated debris.

Somewhat after that was a second bright object, which was probably Nauka.

Partly because I had two guests (from Greece and Pakistan, two participants of
the SpaceTech Symposium at ESTEC, whom I was demonstrating tracking techniques)
the session was a bit chaotic. I forgot to operate the photographic camera, as
my guests were entralled by the video system.

We initially mistook the first object for Nauka: then spotted the second one.
Unfortunately, I only have the first object + associated debris pieces on video,
not Nauka itself. Well, we will have a retry next night...

- Marco

Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.

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:
Twitter: _at_Marco_Langbroek
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Received on Wed Jul 21 2021 - 17:04:29 UTC

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