LightSail-A optical

From: Andriy Makeyev via Seesat-l <seesat-l_at_satobs.org>
Date: Tue, 09 Jun 2015 08:38:12 +0300
On the first pass on Jun 08, 2015 LightSail-A was about 2 seconds earlier than predicted by Ted's&Scott's TLE of epoch 15159.75000000: it was between stars Delta&Gamma Equulei at 23:51:25 UTC (Jun 08). I observed this pass with dictophone and binoculars.

During the morning twilight pass on Jun 09, 2015 I observed LightSail-A with EVS VNC-753-H2 CCD camera on the 12cm refractor (FOV is 36'x27') with video recorded onto a computer (clock synced via NTP). It was early ~3.8s against Ted's&Scott's TLE of epoch 15159.75000000.
Three bright stars nearby gave those positions (ObsReduce):
40661 15 025L   1244 F 20150609012800700 37 15 1550124+260135 29  
40661 15 025L   1244 F 20150609012919600 37 15 1541534+521811 29  
40661 15 025L   1244 F 20150609012947500 37 15 1529225+640815 29  
Last point obtained from telescope's dials:
At 01:30:31.2 (±0.3s) LighSail-A had coordinates: azimuth 350.12±0.02; elevation (41.42±0.02). I'm not shure that converted it to IOD properly (too sleepy), it may look like:
40661 15 025L   1244 F 20150609013031200 37 15 1339109+821058 29  

Best regards, Andriy Makeyev
COSPAR 1244: 44.3932°N, 33.9701°E, 68.7 m
 
 
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Received on Tue Jun 09 2015 - 00:39:01 UTC

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