Christian Möstl
4,110 posts
Christian Möstl
@chrisoutofspace
Head, Austrian Space Weather Office @ASWOGeoSphere | @geosphere_AT |☀️💥💨🌍 | @ERC_Research HELIO4CAST | helioforecast.space |
- OMG. The #Starlink launch on Feb 3 went straight into the ongoing double-dip geomagnetic storm caused by 2 solar storms impacting the Earth. Up to 40 out of 49 satellites are lost due to increased atmospheric drag. Hint for @elonmusk @SpaceX: #spaceweather exists.
UPDATE: @SpaceX confirms there has been a problem with its most recent #Starlink launch, and it's due to something I cover pretty often - space weather. Up to 40 of the 49 satellites launched will likely be lost due to the storm. Anticipate fiery reentries. 📸:SpaceX @TamithaSkov - This #solarstorm eruption on late Friday Apr 21 is very likely to arrive at Earth late Sunday Apr 23. From this overlay of @NASASun SDO/AIA 171 + HMI, one can read the potential magnetic configuration of the flux rope at Earth, determining how the geomagnetic storm evolves.👇
GIF - Replying to @nytimesIn every single country in the world he would be on a flight home before he could even put a racket back in a bag.
- This storm is amazing: it took only 38 hours (!), from Nov 2 ~05 UT to Nov 3 19:25 UT to travel all the 149.5 Mio km from☀️to 🌍. This is a mean speed of 1023 km/s or 3.7 Mio km/h or 2.3 Mio mph. The storm definitely got a tow by a slipstream from faster wind in front of it.
- Quite unreal to announce that I got an @ERC_Research Consolidator grant for improving #spaceweather prediction! This is foremost a success by everyone in our team: Tanja/Ute Amerstorfer, Maike Bauer, Rachel Bailey, Martin Reiss, and Andreas Weiss. Best. team. ever. 🧵 1/18 👇
- Replying to @chrisoutofspaceThis is the current view from the Rax mountain webcam, in Austria, not bad 😃 raxalpe.com/aktuelles-term…
- Replying to @ArminWolfI have a science joke but its only funny in theory.
- While the @NASASun Parker Solar Probe has made its close solar flyby #15, with #17 by the end of 2023 to be the next approach to go even closer, more interesting things are happening in the heliosphere: (1) Look at this absolute unit of a #coronalhole.
GIF - Here's another Earth-directed #solarstorm to watch, erupting on November 9. Look for the ring-like appearance in this combined SDO/SOHO movie. Forecasted arrivals at Earth are clustered around late Saturday November 11.
00:00 - With all the active regions on the☀️the current sunspot number shattered the scale in our solar cycle prediction plot, so we updated it. helioforecast.space/solarcycle
- Meet Lilla, our new PostDog. Proudly handles office security single-pawedly. Voted Employee of the Month, every month. Very good girl.
- Good summary @washingtonpost of the early February #starlink "fallout" caused by a geomagnetic storm, featuring a nice roundup of our community including @TamithaSkov @erikapal @spaceyliz and others (+ a tweet from me 🙂)
- Enjoy the #aurora show! The Dst index for measuring geomagnetic storm strength is provisional, but the minimum of Dst -184 nT at March 24 03 UT means it is the strongest geomagnetic storm since June 2015, so for almost 8 YEARS! And we are only in the rising phase of ☀️ cycle 25.
