Falcon 9 Rocket 2015-021-B observed tonight 44 seconds ahead of Calsky ephemeris

From: Alain Figer via Seesat-l <seesat-l_at_satobs.org>
Date: Tue, 21 Apr 2015 23:32:13 +0200 (CEST)
This evening (21 April) the Dragon CRS-6 Rocket 2015-021-B was predicted by Calsky culminating at 19h28m47s UT , h: 7°8 , az: 219° , altitude 180km.

That was rather low above the SW horizon during bright  twilight (Sun height -6°5). I could not see the rocket with binoculars but took 16 photos of the rocket passing by Delta and Eta CMa after culmination. At first glance, it appears the rocket was as many as 44 seconds ahead of the ephemeris. The photos were of 1/20th second duration at ISO 6400 , objective 200mm at f/2.8 (Canon EOS 6D on tripod).

Alain Figer

48.67 N ; 2.13 E ; 170 m a.s.l.
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Received on Tue Apr 21 2015 - 16:33:04 UTC

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