All Questions
Tagged with spacex communication-satellite
25
questions
27
votes
1
answer
5k
views
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
12
votes
1
answer
3k
views
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
10
votes
1
answer
4k
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Does SpaceX expect 1 collision involving one of their Starlink satellites every 2 years?
I read on https://gizmodo.com/spacex-starlink-satellites-dodge-137-objects-daily-1850616506
by Passant Rabie:
A new report revealed that Starlink satellites had to make 25,000 collision avoidance ...
- 1,164
10
votes
1
answer
1k
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How much krypton is stored on a Starlink satellite?
How much krypton (fuel) is there for the krypton-powered ion thrusters on Starlink satellites and how long does it last?
- 101
8
votes
2
answers
1k
views
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
8
votes
1
answer
836
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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
8
votes
1
answer
4k
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How low is VLEO? (FCC's newest approval for SpaceX)
Engaget's SpaceX gets FCC approval to deploy thousands more internet satellites says
SpaceX's plan to build a global, high-speed wireless internet network using satellites has taken another step ...
- 149k
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
7
votes
1
answer
297
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How has the brightness of SpaceX's Starlink constellation changed since May?
Shortly after the launch, before full orientation of the solar panels and raising of the orbits, the Starlink satellites were surprisingly bright and easily seen with the naked eye.
Back then, I heard ...
- 261
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
4
votes
2
answers
825
views
How does SpaceX plan to make money with StarLink Broadband?
To me, it seems obvious that ground based optical fibres will be cheaper than a space based system by an order of magnitude. So unless say, everyone starts sea-steading and a space based broadband is ...
- 741
4
votes
2
answers
768
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What is meant by "a high-energy geostationary orbit"? (SpaceX Arabsat 6A)
The Teslarati article SpaceX’s April 7th Falcon Heavy launch a step toward new commercial markets says:
While there is some inherent uncertainty surrounding the (once again) fairly new rocket, ...
- 149k
4
votes
2
answers
528
views
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
4
votes
1
answer
436
views
How stable is an orbit of 335.9 km?
Spacex has recently begun deployment of its satellite constellation that will provide internet services. In their initial filings with the FCC they propose that they may have over 7,000 VLEO (very low ...
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