Geomagnetic storm takes out 40 of 49 brand new Starlink satellites
- Reference: 1644379309
- News link: https://www.theregister.co.uk/2022/02/09/starlink_satellites_burned_by_geomagnetic_storm/
- Source link:
all 49 satellites reached their planned 210km perigee deployment orbit, but the storm increased drag to levels up to 50 per cent higher than experienced on previous launches, according to a [1]SpaceX update .
The Starlink team attempted to minimize the drag by putting the sats into safe mode, which would position them to fly edge-on. That plan didn't work because drag caused by the storm still buffeted the sats and meant they could not leave safe mode to raise their orbits. Gravity did its inexorable thing, causing the craft to meet an inglorious end in Earth's atmosphere.
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SpaceX wrote that it uses lower orbits so that if the satellites don't initially pass system checks, deorbit and reentry will occur without producing space junk.
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But at those lower orbits, geomagnetic storms can be more damaging – causing warmer atmospheric conditions and higher densities that increase drag. The storms can also obscure the path of radio signals, create errors in positioning information, and disrupt navigation systems.
The [5]Space Weather Prediction Center put a storm watch in place for the day of the launch as well as the day prior thanks to a flare emitted by a full halo coronal mass ejection – a release of plasma and accompanying magnetic fields from the Sun.
[6]
Had the Musk machines been successful, they would've joined Starlink's colossal satellite constellation selling internet service to Earth-dwellers.
[7]UK science stuck in 'holding pattern' on EU funding by Brexit, says minister
[8]To err is human. To really tmux things up requires an engineer
[9]UK.gov threatens to make adults give credit card details for access to Facebook or TikTok
[10]NASA taps Lockheed Martin to build Mars parcel pickup rocket
[11]Microsoft to block downloaded VBA macros in Office – you may be able to run 'em anyway
In other space news, South Korea's ICT and Science Ministry [12]announced Tuesday it will spend ₩12 billion ($10M) between now and 2023 to develop a high-performance liquid-fuel engine as part of a 2020 ₩49.6 billion ($41.5M) program to secure future technologies and a foothold in the space race.
In addition to developing the manufacturing technology and core components for the engine, South Korea is looking to build a next-gen rocket that builds on its first indigenously developed Korean orbital launch vehicle, Nuri.
After a decade of development, Nuri's [13]payload deployment debut last October was less than perfect. While the launch was successful, it failed to deploy a payload properly when its third-stage engine burned out prematurely.
South Korea has been playing catch up on its space program since 2020, when it was freed of a 1979 Cold war-era agreement with the US that limited its ability to develop and test ballistic missiles. A thriving competitive space program would benefit the country in more ways than one, as it seeks to [14]keep North Korea in line and looks towards 6G technology.
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The country plans to launch its first [16]lunar orbiter this year and hopes to send a spaceship to the Moon by 2030. ®
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[1] https://www.spacex.com/updates/
[2] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_offbeat/science&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2YgNKeMDhDY3gXRg7Zog6lgAAAFA&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0
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[5] https://www.swpc.noaa.gov/news/geomagnetic-storm-conditions-likely-2-3-february-2022
[6] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_offbeat/science&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44YgNKeMDhDY3gXRg7Zog6lgAAAFA&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0
[7] https://www.theregister.com/2022/02/07/minister_confirms_uk_science_in/
[8] https://www.theregister.com/2022/02/07/who_me/
[9] https://www.theregister.com/2022/02/08/age_verification_for_social_media_ukgov_plans/
[10] https://www.theregister.com/2022/02/08/mars_ascent_vehicle_contract_awarded/
[11] https://www.theregister.com/2022/02/08/microsoft_office_default_macro_block/
[12] https://www.msit.go.kr/bbs/view.do?sCode=user&mPid=112&mId=113&bbsSeqNo=94&nttSeqNo=3181372
[13] https://www.theregister.com/2021/10/21/south_korea_nuri_mission/
[14] https://www.theregister.com/2022/01/12/north_korea_hypersonic_missile/
[15] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_offbeat/science&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33YgNKeMDhDY3gXRg7Zog6lgAAAFA&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0
[16] https://www.theregister.com/2021/08/31/south_korea_says_2022_moonshot/
[17] https://whitepapers.theregister.com/
Re: No loss
Your specific satelite was one of the ones that just went poof. He'll require another wad of cash if you want him to try again.
*Hands you an extra tall tankard*
Drink up, you now know how most women feel when some
*Cough*
I ah, I uh, I mean... ummmm... please don't cry, it waters down the beer! =-Jp
No shielding?
Well derp, derp, derp.
Re: No shielding?
Shielding is actually detrimental against drag. The problem isn't the storm itself but the fact said storms kick up the high atmosphere, which is still prevalent in such a low orbit. Basically, the storm stirred up extra turbulence, causing the satellites to de-orbit early due to the increased drag. It's an unfortunate trade-off when you insist on low-latency satellite communications. Speed of light and all that.
Re: No shielding?
Shielding is both expensive to create, heavy, and then doubly expensive as the additional weight takes greater resources to get into space.
They skipped installing it (save money), used the weight savings to include a larger electronics package (more functionality per kg), and thus the lighter weight cost less to lob into space (or allowed more satelites to be lobbed for the same original price).
Yes the lack of it meant that the silly buggers got blown out of the sky the first time the sun farted, but the money saved means they can afford to fling another load to try again.
*Hands you a pint*
Drink up, it'll help drown the jealousy over not having a few hundred billion bucks of our own. =-Jp
No loss
Musk has had my deposit for over a year and still no service.