All Questions
Tagged with spacex communication-satellite
25
questions
4
votes
2
answers
352
views
Is a space probe communication relay possible?
Is it possible to maintain a connection with space probes that are far away by sending other space probes behind it.
For example -
[earth] ------1---- 2-------3--------4------5....and so on if ...
- 41
6
votes
1
answer
518
views
How are multiple low orbit communication satellites per launch distributed along an orbital plane for global coverage?
SpaceX talks about launching 4,425 communication satellites into 83 different orbital planes at 1,100 km altitude. That's about 50 satellites per orbital plane. In terms of capacity to LEO, a Falcon 9 ...
- 27k
7
votes
2
answers
643
views
Is secure communication in space important?
How important is secure communication in space?
Science-related research is often made public, but does that mean all communications must be unprotected?
- 335
12
votes
1
answer
3k
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How much will SpaceX's constellation of Internet satellites cost?
SpaceX has a plan to launch up to 4K satellites to provide global Internet access. Is there a reasonable estimate of how much this constellation would cost to launch? Also, as the minimum number of ...
- 121k
4
votes
2
answers
528
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For constellations of circular LEO satellites, are there allocations of available "slots" in altitudes?
The BBC article SpaceX aims to launch internet from space discusses the SpaceX proposal for a dense array of 4,425 LEO satellites distributed among 83 orbital planes in five inclination groups as ...
- 149k
1
vote
0
answers
66
views
Does a low-orbit communication network drive a sustainable launch market?
With SpaceX recent announcement of a huge satellite network in low earth orbit, I was wondering if such a network would motivate a sustainable large-scale launch capacity, i.e. a increase of scale of ...
- 2,453
27
votes
1
answer
5k
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SpaceX's 4,425 satellite constellation - what's the method to the madness?
The BBC article SpaceX aims to launch internet from space discusses the SpaceX proposal for a dense array of over 4,000 LEO satellites for global internet coverage, and links to SpaceX non-...
- 149k
8
votes
1
answer
836
views
How much time does it take to circularize a GTO orbit using ion propulsion?
SpaceX launched two GEO comsats, and is about to launch two more, that use all-electric ion propulsion.
Now, I'm wondering, how much time would it take to actually make a satellite like that ...
- 1,652
4
votes
1
answer
1k
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How did SES-9 reach geostationary orbit from inclined transfer orbit (from F9 2nd stage)
The Spaceflight Now article Flight timeline for Falcon 9’s launch of SES 9 says near the end that the Falcon 9 2nd stage will leave SES-9 in an elliptical, inclined transfer orbit.
And Falcon 9 rocket ...
- 149k
8
votes
2
answers
1k
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What will be "unique" about upcoming SES-9 GTO transfer profile by SpaceX?
In the SES-9 mission press kit, SpaceX mentions:
"Given this mission’s unique GTO profile, a successful landing is not expected."
What is considered "unique" about this transfer orbit's profile?
...
- 149k