Re: NROL-82 search elements

From: Allen Thomson via Seesat-l <seesat-l_at_satobs.org>
Date: Tue, 27 Apr 2021 21:09:46 +0000 (UTC)
>  Analysis of 6 S-band Doppler curves obtained during the first 24h since launch yield the following orbital elements, determined solely from the radio observations.
If I may be permitted a non-substantive comment -- please do not post replies -- I find it curious that NRO satellites, the orbits of which are kept secret for reasons of national security, carry S-band beacons that enable their orbits to be determined by methods used to track Sputnik 1 in 1957.
  
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Received on Tue Apr 27 2021 - 16:12:46 UTC

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