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Fast Flashing 2004-021B
PZeller66 wrote:
Thanks for the confirmation! I was starting to think that my eyes were playing tricks on me early that morning. I had the same impression when I saw it, too. I'm assuming that the constant look to its brightness was because of it's orientation. Maybe I was first seeing it at a nearly right angle to its axis of rotation, and then when it was closer to the horizon I was seeing it more from the side, tumbling end over end. That's my guess, too. It's the upper stage of a Russian Zenit-2 booster; astronautix.com describes that stage as being 3.9 meters in diameter and 11.5 meters long, which allows a lot of change in its observed area as it tumbles. My guess is that it did something odd when it vented excess propellant after reaching orbit. I spotted it again less than an hour ago, in clear skies. The flashing is still impressive. --Bill Thompson |
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