Questions tagged [starlink]

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8
votes
1answer
1k views

Is SpaceX propulsively deorbiting a Starlink satellite already?

The plot below shows that most of the SpaceX Starlink satellites have moved from circa 450 km to circa 550 kilometers already, using their argon-based ion engines. A few, along with four unidentified ...
4
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1answer
130 views

Would SpaceX's Starlink constellation contribute inordinately to space debris?

I mean they already launched a large constellation of 60 satellites and have plans to launch many more; won't all this contribute inordinately to existing space junk, which is actually becoming a real ...
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143 views

What are these four “debris” objects along with the Starlink satellites?

Celestrak has an updated system of categories for retrieving lists of current TLEs, and there's already one for Starlink, yay! Currently https://www.celestrak.com/NORAD/elements/starlink.txt contains ...
3
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1answer
142 views

What are Starlink's available momentum unloading strategies?

Today's Teslarati article SpaceX wants to offer Starlink internet to consumers after just six launches talks about the new website https://www.starlink.com/ shows several images from it, and tries to ...
2
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1answer
184 views

Delta-V of Starlink Satellites

The recently launched Starlink satellites are designed to use their HAL Ion thrusters to seek their own independent orbits, evade collisions, and de-orbit at the end of their lives. That's a lot of ...
2
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0answers
118 views

Larger data rate, Oneweb or Starlink? [closed]

Which satellite constellation will provide the larger downlink data rate, in total and per satellite, Oneweb or Starlink? My consideration: starlink will operate in a lower orbit, with more ...
10
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2answers
1k views

Is the Starlink array really visible from Earth?

I was browsing YouTube when I came across this video, recorded from a sky gazer who apparently spotted the Starlink satellites. In my lifetime, I haven't seen many satellites in the night skies (maybe ...
2
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0answers
93 views

What caused these strange lights around the Falcon 9 grid fins (Starlink launch)?

Early in the video of the launch of the first sixty SpaceX Starlink satellites we can see that after stage separation the first stage grid fins open. Around that time there are some phenomena I don't ...
2
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1answer
85 views

Impact of Constellations on Space Debris and Launch Windows

With the decline of massive GEO satellites and a big increase in smallsat and cubesat, especially those in constellations, I wonder what their impact is on space debris. Those smaller satellites do ...
1
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2answers
390 views

What performance specification would be lower for Krypton than for Xenon in Hall effect thrusters?

The Ars Technica article SpaceX scrubs first attempt to launch 60 Internet satellites [Updated] (found here) discusses the use of Krypton rather than Xenon in the Starlink Hall effect ion thrusters: ...
7
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1answer
335 views

How will Starlink satellites deploy from the fairing and reach their orbits?

Elon Musk posted this picture of the first 60 Starlink satellites packed densely into the fairing of the Falcon scheduled to launch in a few hours. There doesn't appear to be a launcher or ejector to ...
7
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2answers
2k views

Why will Starlink satellites use krypton instead of xenon for electric propulsion?

The press kit for the first Falcon 9 Starlink launch and deployment of the first 60 satllites scheduled for May 15, 2019 says: With a flat-panel design featuring multiple high-throughput antennas ...
3
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1answer
158 views

How will Starlink satellites be capable of tracking on-orbit debris and autonomously avoiding collision?

The press kit for the first Falcon 9 Starlink launch and deployment of the first 60 satllites scheduled for May 15, 2019 says: Starlink satellites are capable of tracking on-orbit debris and ...
4
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1answer
180 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 - ...
0
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1answer
91 views

How are satellites made “demisable” and what else do recent FAA documents tell us about SpaceX's plans for StarLink satellites?

Comments in chat mention that recent FAA documents show that there have been design changes in the StarLink satellites that make future builds "demisable". This sounds interesting but I don't really ...
3
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0answers
157 views

Have the Starlink precursor Tintin satellites been talking to each other? If so, how?

Tintin A and B are the first two exploratory and testing spacecraft for SpaceX's Starlink program. It looks like they are in very similar orbits in both space and time, and are probably that way so ...
2
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0answers
387 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 ...