Daniel Deak has informed me that I misidentified the upper stage as the cryogenic ESC. The correct stage is the stored-propellant EPS, which is 3.36 m long and 5.4 m in diameter. The total ATV/EPS stack is 11.7 m long. I apologize for my error. Here is the corrected information for the initial orbit, valid from approximately 04:20 to 05:05 UTC: ATV/EPS 11.7 5.0 0.0 3.0 v 144 X 257 km 1 71700U 08069.18379630 .00000000 00000-0 00000-0 0 08 2 71700 51.6400 172.9000 0086000 57.5000 14.4000 16.27300000 01 I did not revise my guess of the standard magnitude. For the circularized orbit, I have used vec2tle to convert the official state-vector that appears in the NASA SkyWatch ephemeris generator at the following URL, to the 2-line elements format, as shown below. http://spaceflight.nasa.gov/realdata/sightings/SSapplications/Post/JavaSSOP/Java SSOP.html ATV 1 9.8 4.5 0.0 3.5 v 256 X 275 km 1 71700U 08069.21507999 .00000000 00000-0 00000-0 0 03 2 71700 51.6418 172.9417 0013786 257.3306 357.6353 16.03440195 09 This elset is valid beginning shortly after about 05:05:30 UTC. The version I estimated yesterday produces fairly similar predictions, but this one is based on the best available information, and should be close to definitive. Ted Molczan ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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