All Questions
Tagged with spacex satellite-constellation
13
questions
-1
votes
0
answers
48
views
CO2 emissions for a satellite [closed]
How much CO2 emissions would producing an LEO satellite (e.g. Starlink satellite) release? I imagine there are various factors that go into this (aluminum body, electronics, battery, solar cells, etc.)...
- 1
10
votes
1
answer
4k
views
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
2
votes
0
answers
21
views
Did Starlink's experimental Darksat help reduce brightness? [duplicate]
Did Darksat's visor like coverings to its parabolic antennas reduce the brightness or was it a failure.
Or is SpaceX devoleping any other mechanisms or manuveres to counter this problem?
4
votes
0
answers
143
views
How will Amazon's constellation differentiate itself from SpaceX's and OneWeb's?
The New York Times' Amazon Satellites Add to Astronomers’ Worries About the Night Sky says:
Much of the attention on these strings of satellites has been placed on the prolific launches of SpaceX and ...
- 148k
1
vote
1
answer
379
views
What company has the most satellites in orbit?
Ars Technica's SpaceX to offer Starlink public beta in six months, Musk says says
Meanwhile, SpaceX launched another 60 Starlink satellites yesterday. The launch, as Musk noted, gives SpaceX "...
- 148k
2
votes
1
answer
125
views
Space Debris and Megaconstellations: plans for ~1000kms altitude orbits
SpaceX's Starlink and other mega-constellation plans highlight safe de-orbiting features but does this also extend to altitudes higher than 1,000 kms?
My concern is whether these smaller sats will ...
- 199
13
votes
3
answers
3k
views
Why is one Starlink satellite not following the adjacent one in this image?
The following image shows trails of SpaceX’s Starlink satellites as seen in the sky above the Cerro Tololo Inter-American Observatory (CTIO) in Chile:
Image Source: SpaceX’s Newly Launched Starlink ...
- 3,296
5
votes
1
answer
843
views
What does the Starlink constellation look like now? Numbers of planes and inclinations?
In the question SpaceX's 4,425 satellite constellation - what's the method to the madness? I took the orbital parameters in SpaceX's filing SpaceX non-Geostationary Satellite System Attachment A - ...
- 148k
3
votes
0
answers
1k
views
What technology will SpaceX's StarLink satellites most likely use for sat-to-sat linking?
The question How does SpaceX plan to make money with StarLink Broadband? has got me thinking about how the satellites will link to each other.
Wikipedia says it's something greater than 10,000 GHz and ...
- 148k
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
21
votes
3
answers
5k
views
How many SpaceX Starlink Internet-service satellites could be deployed in a single Falcon 9 launch? Falcon Heavy? BFR?
The mass of the two test satellites being launched this month is 400 kg, but I don't believe that includes the antennae and the structure to hold and release them. Is total mass the only constraint or ...
- 311
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
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-...
- 148k