Obs 2013-04-21 and STPSat-2 info

From: Andriy Makeyev (andriy_makeyev@ukr.net)
Date: Mon Apr 22 2013 - 00:15:26 UTC

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    Observed Vortex 6 and WGS 4 this evening:
    
    19976 89 035A   1244 B 20130421173759900 47 15 1413178-083521 19 S+100 02
    19976 89 035A   1244 B 20130421173820500 47 15 1413401-083610 29 S
    19976 89 035A   1244 T 20130421172920300 57 15 1403190-081512 37 S
    38070 12 003A   1244 B 20130421174711100 47 15 1401219-061929 37 S
    38070 12 003A   1244 B 20130421174818460 47 15 1402286-061938 39 S
    38070 12 003A   1244 B 20130421175945000 57 15 1413579-061935 49 S
    38070 12 003A   1244 B 20130421180341230 57 15 1417548-061950 29 S
    
    Haze, moonlight and clouds.
    Mike's elements from inttles.tle for WGS 4 (epoch 13111.4099) matched its real position the best.
    Nearby ST2 (#37606) was where it should be (space-track's tles of epoch 13110.634), so there's no confusion.
    
    Used CCD camera EVS VNC-753-H2 on 12cm refractor (FOV is 36'x27'). Captured frames onto the computer.
    Clock synced via NTP. Processed with ObsReduce. Determined magnitude in comparison with nearby stars.
    
    International laser ranging service started dissemination of ephemeris for STPSat-2 (#37222) in CPF format this month.
    CPF files can be found at ftp://cddis.gsfc.nasa.gov/pub/slr/cpf_predicts/current
    Description of CPF is at http://ilrs.gsfc.nasa.gov/docs/2006/cpf_1.01.pdf or 
    http://ilrs.gsfc.nasa.gov/data_and_products/formats/cpf.html
    
    Best regards, Andriy Makeyev
    COSPAR 1244: 44.3932N, 33.9701E, 68.7m
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