uhoh
  • Member for 6 years, 3 months
  • Last seen this week
  • Taipei, Earth
2 answers
3 votes
537 views
3 bookmarks
Orbit Maneuvering
1 answers
3 votes
181 views
1 bookmarks
Secular variation of orbital elements and influence of force components
0 answers
3 votes
140 views
1 bookmarks
Spice PCK planet orientation model
2 answers
6 votes
729 views
1 bookmarks
How does a thermal control system of a spacecraft basicaly work?
4 answers
7 votes
1k views
2 bookmarks
Why can't we use charged fine metal dust instead of plasma for ion thruster?
1 answers
26 votes
2k views
7 bookmarks
What are some specific examples of the calculations human "computers" did for the Mercury space program?
1 answers
2 votes
1k views
1 bookmarks
Isp of LOX-based hybrid rocket engines
1 answers
5 votes
1k views
1 bookmarks
How were the 10 Iridium NEXT satellites deployed by SpaceX?
3 answers
7 votes
291 views
1 bookmarks
Are transfers between two orbits commutative?
1 answers
3 votes
303 views
1 bookmarks
How will the Lucy spacecraft move from Jupiter's L4 to its L5 Trojan asteroids?
2 answers
5 votes
2k views
1 bookmarks
What is the gravity inside a rotating cylinder?
1 answers
5 votes
479 views
1 bookmarks
Was a large-nozzle variant of the J-2 ever considered?
3 answers
9 votes
1k views
2 bookmarks
How is the minimal $\Delta v$ transfer between non-coplanar orbits calculated?
1 answers
4 votes
197 views
1 bookmarks
Build an engine that burns tholins
5 answers
24 votes
3k views
2 bookmarks
Why is the Pressurized Mating Adapter slanted?
1 answers
10 votes
1k views
2 bookmarks
How much is a geostationary satellite expected to deviate from the geostationary orbit?
2 answers
8 votes
421 views
2 bookmarks
How many orbits will it take for Santa to deliver all the presents?
7 answers
30 votes
9k views
5 bookmarks
Why weren't Saturn V and the Soviet N-1 Moon rockets made larger in order to simplify Lunar missions?
2 answers
4 votes
519 views
1 bookmarks
At what magnitude would adjacent large geostationary communications satellites see each other?
1 answers
18 votes
5k views
11 bookmarks
What are quaternions and how are they used to represent spacecraft dynamics?
1 answers
5 votes
567 views
1 bookmarks
What does "Q frame" means in terms of satellite coordinates?
0 answers
5 votes
129 views
1 bookmarks
Which robotic spacecraft have autonomous operation capabilities?
3 answers
7 votes
960 views
1 bookmarks
How many earth stations had astronauts on-site during John Glenn's orbit in Friendship-7?
4 answers
14 votes
20k views
7 bookmarks
Converting Orbital Elements to Cartesian State Vectors
3 answers
3 votes
353 views
1 bookmarks
Are there Practical Methods to Measure the Distance between a Spacecraft and an Astronomical Body?
2 answers
4 votes
306 views
1 bookmarks
What do scientists see when they track space probes?
1 answers
11 votes
2k views
1 bookmarks
Is there any compiler available for HAL/S?
2 answers
5 votes
2k views
3 bookmarks
Using Earth's magnetic field for an electric propulsion system
0 answers
1 votes
118 views
1 bookmarks
What is the sequence of the main spacecraft and CubeSats separation during Falcon 9 launch?
1 answers
2 votes
560 views
1 bookmarks
Mapping the moon: how to use the Lunar Reconnaissance Orbiter (LRO) image data?
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