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- いいね！0
Orbit-Mars
@Orbit_Mars
Rentrée atmosphérique de Phobos-Grunt : 20 à 30 fragments d’une masse cumulée de 200 kg pourraient atteindre le sol http://t.co/I1uD4wp9
2011-12-20 06:21:22
Phobos Grunt
@PhG_Reentry
RT @NeilBrainstrong: BBC News - 'January re-entry' for #PhobosGrunt #Mars probe http://t.co/yPKTZsUg -- 200 kg to reach the ground
2011-12-20 06:55:48
Phobos Grunt
@PhG_Reentry
@Garrettishere me too (last week) but stick with it, I got a glimpse the next day
2011-12-20 06:58:24
Phobos Grunt
@PhG_Reentry
@John_Northants yes, it should be pretty close at the moment (within seconds)
2011-12-20 07:07:53
Phobos Grunt
@PhG_Reentry
@John_Northants like heavens-above and others, we use US-Strat-Com radar data+algorithms, but also use independent data & numerical models
2011-12-20 07:31:51
Phobos Grunt
@PhG_Reentry
Phobos Grunt visibility guide 2011-12-20 UTC http://t.co/aFGVoaE8 morning passes for 42°N±5° #PhobosGrunt
2011-12-20 07:40:13
Phobos Grunt
@PhG_Reentry
RT @SPACEFLIGHT101: Attempts to fire Phobos-Grunt's Engines are stopped: http://t.co/yTK4J3Mk - Current Re-Entry Data: http://t.co/bEIxGNtJ
2011-12-20 07:57:35
みずもと
@rus_space
フォボス・グルントへ対するコマンド送信は先週いっぱいでストップ。ロシアもESAも。軌道上、太陽光が当たりっぱなしの期間における試行でもうんともすんとも反応がなかったため、もはや可能性はないだろうと。http://t.co/br6Zhwpg
2011-12-20 08:01:50
みずもと
@rus_space
現時点では探査機の姿勢がわからず、エンジン点火をむやみにやるとどの方向へ加速するかわからないためとのこと。今後もテレメトリーの取得試行は続けると。
2011-12-20 08:07:21
Phobos Grunt
@PhG_Reentry
Phobos Grunt ballastic changes correlate with spacecraft aligned ~30° from sun & correctly precessing 90° in 10½ days http://t.co/eZsQem0Z
2011-12-20 23:20:32
Phobos Grunt
@PhG_Reentry
Would indicate axis of #PhobosGrunt closer to 45 degree from sun, perhaps pre-burn alignment??
2011-12-20 23:56:31
Phobos Grunt
@PhG_Reentry
RT @genejm29: Russia's doomed Mars probe may not be a total waste http://t.co/aRlNi99v via @examinercom #PhobosGrunt
2011-12-21 05:15:53
Phobos Grunt
@PhG_Reentry
Phobos Grunt visibility guide 2011-12-21 UTC http://t.co/iNZYyMfW - Now Europe. Who's on the path? Who has seen it? #PhobosGrunt
2011-12-21 08:18:05
Phobos Grunt
@PhG_Reentry
RT @ponder68: #PhobosGrunt Highlights Cooperation in Space Situational Awareness | Space Safety Magazine: http://t.co/hQrtgQLq #ssa
2011-12-21 08:36:26
Phobos Grunt
@PhG_Reentry
Phobos Grunt orientation theory http://t.co/ryNeQMcO ballistic cdA/m may be starting to increase now... #PhobosGrunt
2011-12-21 10:30:32
Phobos Grunt
@PhG_Reentry
Interesting... More attitude control thruster action?... #waiting2see
2011-12-21 19:42:31
Phobos Grunt
@PhG_Reentry
@Zarya_Info yes, there's a lot of automation in their data & analysis, the last two TLEs show anomalous behavior - too few to extrapolate
2011-12-22 05:12:09
Phobos Grunt
@PhG_Reentry
Phobos Grunt re-entry: Jan 7th to Jan 16th [Jan 12±5d] (99.9%), narrowing to Jan 9th to 11th (50% probability) http://t.co/hiO6BZE7
2011-12-22 08:05:13
Phobos Grunt
@PhG_Reentry
Phobos Grunt visibility guide 2011-12-22 UTC http://t.co/OaNNrlAw European/Canada views (weather permitting) #PhobosGrunt
2011-12-22 08:09:41
Phobos Grunt
@PhG_Reentry
Phobos Grunt now experiencing changing drag http://t.co/rgzF4KRu http://t.co/67m8OMSm need a few more data points to confirm trend
2011-12-22 21:02:42
NASA
@NASA
Awesome time-lapse video of Comet Lovejoy pictures taken by @AstroCoastie, station Commander Dan Burbank:http://t.co/T91CN07u
2011-12-23 05:51:04
Phobos Grunt
@PhG_Reentry
Phobos Grunt visibility guide 2011-12-23 UTC http://t.co/zPWWogOB far northern/southern latitudes Canada/Europe #PhobosGrunt
2011-12-23 07:13:32
Phobos Grunt
@PhG_Reentry
Changing aerodynamics causes: orientation changes, active attitude control, increasing solar flux http://t.co/XdoS3G0Z http://t.co/cEpDcG9a
2011-12-23 07:40:08
みずもと
@rus_space
11月29日に撮影されたフォボス・グルントの処理画像。約50秒間の間に姿勢が大きく変化しているのがわかる。これが撮影された時には、姿勢が安定していなかったことは明らか。http://t.co/FEU4Nnvq
2011-12-23 23:46:37
Phobos Grunt
@PhG_Reentry
With no appreciable cdA/m increase, #PhobosGrunt re-entry would be 16th January, still expecting increase due to solar flux at least
2011-12-24 05:27:40