🥚 (@spacegg135) 's Twitter Profile
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@spacegg135

SpaceX watcher in Japan

ID: 1407134303872438272

calendar_today22-06-2021 00:32:24

21,21K Tweet

245 Followers

206 Following

Anatoly Zak (@russianspaceweb) 's Twitter Profile Photo

Scott Manley Starship completes its 4th test mission with a (seemingly, mostly) successful vertical landing in the Indian Ocean: russianspaceweb.com/chronology_XXI…

<a href="/DJSnM/">Scott Manley</a> Starship completes its 4th test mission with a (seemingly, mostly) successful vertical landing in the Indian Ocean:
russianspaceweb.com/chronology_XXI…
NSF - NASASpaceflight.com (@nasaspaceflight) 's Twitter Profile Photo

Ship 29 makes it through re-entry, minus part of a flap, and does a bellyflop! And...............no way! It looked like a flip and burn and soft splashdown?!

Trude⚙😈 (@gertrud_violett) 's Twitter Profile Photo

若造なのでアポロの月面着陸はリアタイできなかったけど 人類史上最大最強の人工物の軌道投入と大気圏再突入がリアタイできたからヨシッ!とします! お疲れ様でした。

SpaceX (@spacex) 's Twitter Profile Photo

During tonight’s Falcon 9 launch of Starlink, the second stage engine did not complete its second burn. As a result, the Starlink satellites were deployed into a lower than intended orbit. SpaceX has made contact with 5 of the satellites so far and is attempting to have them

SpaceX (@spacex) 's Twitter Profile Photo

The team made contact with 10 of the satellites and attempted to have them raise orbit using their ion thrusters, but they are in an enormously high-drag environment with their perigee, or lowest point of their elliptical orbit, only 135 km above the Earth

SpaceX (@spacex) 's Twitter Profile Photo

Each pass through perigee removes 5+ km of altitude from the highest point in the satellite orbit. At this level of drag, our maximum available thrust is unlikely to be enough to successfully raise the satellites.

宇宙システム研究室@東京都立大学/佐原研究室 (@tmu_ssl) 's Twitter Profile Photo

直径6.4kmのスペースコロニーは,113.5秒に1回回転し,U(r)=-(1/2)r^2ω^2の遠心力ポテンシャルを生み出している.ポテンシャルの基準は無限遠じゃなく,コロニーの回転中心にあるんだ.コロニー生まれの私たちはホンモノの重力ポテンシャルU(r)=-μ/rも,ホンモノの慣性系も知らない. #TMU_SSL