hhmx.de

Prof. Sam Lawler

Föderation EN Mi 18.09.2024 15:10:23

Oh look, Starlink is continuing to screw up the sky in every way possible.

"Second-Generation Starlink Satellites Leak 30 Times More Radio Interference, Threatening Astronomical Observations"

astron.nl/starlink-satellites/

It's going to be "hilarious" when Starlink messes up the radio sky so badly that radio astronomers can't even use quasars to calibrate GPS anymore. There are so many consequences from all these stupid, cheaply built, disposable satellites. universetoday.com/105160/navig

wikiyu

Föderation EN Mi 18.09.2024 15:14:02

@sundogplanets so they are enchancing market for their own products? Sending more labs/telescopes into space -> outside of musks shit -> using musks rockets?

Uilebheist

Föderation EN Mi 18.09.2024 15:15:36

@sundogplanets Just waiting for the musk-bros to suggest that it's the astronomers' fault for not working around the problem...

Olson

Föderation EN Mi 18.09.2024 15:31:18

@sundogplanets I am naive about spacecraft. Do these satellites have a way to be brought safely back to earth, or are they stuck in space until they break apart and fall to earth?

Smart Fox

Föderation EN Mi 18.09.2024 15:35:49

@volcano @sundogplanets since every idiot with too much money wants to put a ridicioulus amount of satelites in orbit i think the Situation is only getting worse.

~

Föderation EN Mi 18.09.2024 16:10:01

@volcano @sundogplanets they have thrusters to avoid other satellites and debris, and they carry enough propellant to deorbit at end of life and burn up safely in the atmosphere

nullagent

Föderation EN Mi 18.09.2024 16:14:03

@volcano @sundogplanets

For the most part YES. Most of these satellites have ion thrusters which should allow them to be deorbited on command. The orbit these are on will also naturally decay after 5yrs if the satellites stop occasionally boosting their orbits.

This is all a bit uncharted air control problem the so it's probably a bit dangerous to bring a lot down at once.

Isaac Ji Kuo

Föderation EN Mi 18.09.2024 16:55:30

@nullagent @volcano @sundogplanets

Yes, they will mostly burn up in the upper atmosphere and are unlikely to kill people via direct impact. However, these large numbers of satellites will deplete the ozone layer and kill and blind people via increased rates of cancer and cataracts.

The chances of SpaceX/Elon Musk caring are ... I dunno ... close to zero. Even if government regulation demands that they do something about it, I expect they will simply defy the law.

Samuel Leuenberger

Föderation EN Mi 18.09.2024 17:13:10

@isaackuo @nullagent @volcano @sundogplanets "these large numbers of satellites will deplete the ozone layer and kill and blind people via increased rates of cancer and cataracts" 🤔
[citation needed]

athlete4

Föderation EN Mi 18.09.2024 15:34:18

@sundogplanets how is it possible that a private company allowed to do this? are there no international bodies responsible for regulating space projects?

Quark Maker

Föderation EN Mi 18.09.2024 17:00:38

@athlete4 @sundogplanets Back during the era when the international community was writing the Outer Space Treaty and other laws (the 1960s, that is) there was no concept of individuals building and launching their own rockets. As I understand it (someone here correct me if I'm wrong) the laws on the books pretty much just target nation states, not individuals.

Moreover, it's one thing to have a law; it's another thing entirely to be able to enforce it.

John Mastodon

Föderation EN Mi 18.09.2024 15:57:33

@sundogplanets That's the problem with those who lack scientific background, they're destroying the planet for a profit. They need to be stopped by the scientific community!

ruiin

Föderation DE Mi 18.09.2024 16:01:10

@sundogplanets @anderelampe dont forget that all these satellites will once return to earth which will pollute the upper atmosphere and destroys the ozone layer.

Trifolium

Föderation EN Mi 18.09.2024 16:07:30

@sundogplanets

The BBC also raises this:

“Radio waves from Elon Musk’s growing network of satellites are blocking scientists’ ability to peer into the universe, according to researchers in the Netherlands.”

bbc.com/news/articles/cy4dnr8z

Kernic

Föderation EN Mi 18.09.2024 16:21:02

@sundogplanets also they help the Chinese to track down stealth fighters…

Veronica

Föderation EN Mi 18.09.2024 16:35:52

@sundogplanets it will be interesting when the sky is an EPA SuperFund site.

crazyeddie

Föderation EN Mi 18.09.2024 16:38:49

@sundogplanets Don't they rely on GPS to not collide or is that all laser targeting? Their dish probably wouldn't be able to find one accurately... They should be concerned about this themselves I would think.

Everyday.Human Derek

Föderation EN Mi 18.09.2024 16:51:07

@sundogplanets I copied the link to your post and posting a link on other socials to bring more attention to the issue.
Cheers
☺️

xs4me2

Föderation EN Mi 18.09.2024 16:52:44

@sundogplanets

Time for a big hoover to pick them and a huge amount of debri out of the sky…

Jok

Föderation EN Mi 18.09.2024 16:55:10

@sundogplanets I don't have a degree in astrophysics, but I'm trying to understand your point of view better regarding Starlink's impact (I'm a Starlink user in rural France with poor DSL alternative). You mentioned that it could get so bad that radio astronomers might not even be able to use quasars to calibrate GPS anymore.

From what I understand, quasars are used in techniques like Delta-DOR to correct for errors in spacecraft navigation, relying on the precise positions of these objects. But I'm curious—are you saying that the radio interference from Starlink satellites could eventually become so severe that it would make these kinds of calibrations unreliable?

If so, what specifically about Starlink's radio emissions makes this scenario a real possibility? Are there frequency overlaps or specific effects that would make this issue hard to mitigate with current technology?

I appreciate any insights, as I'm trying to responsibly wrap my head around how this interference could affect something as fundamental as GPS synchronization using quasars.