#Tiangong1 perigee is currently down to 215 km. It is currently losing 2-3 km/day in altitude, and that value will rapidly increase the coming two weeks:pic.twitter.com/O2gQySMEO9
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My latest #reentry estimate for #Tiangong1:
31 March +- 3 days
The geomagnetic storm of yesterday does seem to have given it a bump.
@SSC_NLpic.twitter.com/MdZgP1rX1R
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Note that I consolidate all my
#reentry estimates for#Tiangong1 in this daily updated blog post: https://sattrackcam.blogspot.nl/2018/03/updated-tiangong-1-reentry-predictions.html …Show this thread
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Question: what explains the oscillation in the last graph? The station rotating? Or some external physical phenomenon like... idk. Solar cycles (but very fast?)?
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As I point out in my blog post (https://sattrackcam.blogspot.nl/2018/03/updated-tiangong-1-reentry-predictions.html …), I think it probably points to a slow attitude variation of Tiangong-1, e.g. because it is perhaps slowly rotating. The oscillation is about 5.5 days peak-to-peak.
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Is it possible to estimate where it is going to fall? I guess the perigee is over the Atlantic, isn't it?
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Only in the last few hours, some sort of estimate is possible. Currently the uncertainty in the reentry prediction is still several days.
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I guess there's a lot of fake info in the media now, thanks!
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Noob question from a layman in space related orbit things. At what altitude will the station start burning up?
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It usually will start ~100 km, with breakup typically initiated at ~80-70 km.
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Observer question: if "burnup" starts at 100km altitude, from how far away could it be seen? (Sorry - my geometry-fu is weak).
Thanks. Twitter will use this to make your timeline better. UndoUndo
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