Re: Any ideas of what satellite is being discussed? (David Tiller)

From: Charles Phillips via Seesat-l <>
Date: Wed, 15 Aug 2018 11:22:11 -0600 (MDT)
David -

They are referring to International Designator 2017-037 - launched Jun 23, 2017; Cosmos 2519 and related items. 

42919 (2017-037D) was released on Aug 23 (per the very dependable Jonathan McDowell) to inspect satellites. Jonathan has about the best alerts about it that I have seen. 

There are numerous articles about that, such as:

It is sort of like the US geosynch space situational awareness (GSSAP) inspector satellites, so it is not actually very unusual or threatening (in my opinion). 

Charles Phillips
Spaceflight Research, LLC
Houston, Texas

From: David Tiller < >
To: " " < >
Subject: Any ideas of what satellite is being discussed?
< >

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The following article mentions a Russian satellite launched last October whose "behaviour [sic] on-orbit was inconsistent with anything seen before from on-orbit inspection or space situational awareness capabilities, including other Russian inspection satellite activities".

Any clues as to the identity of the satellite or its anomalous behavior?


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