Jan GROSSER, Dr. rer.nat.Heute habe ich beim DLR Netzwerktreffen Normung in Göttingen einen Vortrag zu Dark and Quiet Skies gehalten. Wie kann Normung zur Lösung des Problems beitragen und was machen wir in der DLR Raumfahrtagentur?
Today, marks the final day of the 63rd session of UNCOPUOS Scientific and Technical Subcommittee in Vienna. This time, I joined the German delegation as an expert for space sustainability and had the pleasure to give a statement on the latest activities at @DLR Space Agency wrt. Dark and Quiet Skies.
#uncopuos #stsc #spacesustainability #darkandquietskies #vienna
SpaceNewsIt is time to take astronomy off Earth
https://fed.brid.gy/r/https://spacenews.com/it-is-time-to-take-astronomy-off-earth/
Dr. John Barentine FRASI'm happy to report that after a very long two years and many delays, the IAU Symposium No. 385 proceedings volume is finally published by Cambridge University Press. It's probably the most extensive/complete source on #DarkAndQuietSkies to date.
Meredith RawlsI can't capture all the Qs... but folks have asked about how to define space sustainability and whether companies are getting requests from other countries than the US for something akin to the NSF Coordination Agreements. #DarkAndQuietSkies
Q&A! Interesting Q from Piero Benvenuti about addressing impacts to Earth's atmosphere by burning up boatloads of satellites. Another Q about how it's supposed to work if multiple companies take the "we only have a few hundred superbright sats" approach. Both largely deflected IMO #DarkAndQuietSkies
Last but not least is David Goldstein from SpaceX, poor guy is on Zoom at 5am PST. Nevertheless, he summarized all the various mitigation efforts they have put resources into. Interestingly, they only need 30 min notice for boresight avoidance. Lots of resources into coordination #DarkAndQuietSkies
Ray Sedgwick from AST SpaceMobile is the next #DarkAndQuietSkies speaker. He points out that their satellites are large but they've filed for a mere 248. He covered a lot, but this shows optical astronomers what to expect. Focusing more on operational mitigation strategies rather than darkening.
Next, Amazon Leo. Josef Koller, an astronomer by training, is head of space safety and sustainability. He had more to say than what his slides show — Amazon is using steerable beams, dielectric films on flat surfaces, in-house modeling, their own telescopes, and more for #DarkAndQuietSkies
First, Eutelsat. Enrique Allona is describing his constellation's best practices for #DarkAndQuietSkies. They have 34 GSO sats and 654 LEO sats in a fully launched constellation. He touts higher altitude as an effective mitigation that requires fewer satellites. It is indeed a tradeoff.
