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XKCD
XKCD
01:44
xkcd.com/2812
 
2 hours later…
Erin Anne
Erin Anne
03:14
this is interesting. NOAA loosened their restrictions on commercial satellite imagery (which I didn't realize they were responsible for restricting) and apparently UMBRA has already released an 0.16m/pixel (around 6 inches/pixel) image

https://www.space.commerce.gov/noaa-eliminates-restrictive-operating-conditions-from-commercial-remote-sensing-satellite-licenses/
regulation: the reason we can't have nice things*
 
3 hours later…
uhoh
uhoh
06:01
3
Q: Under which conditions could a planet's massive moon's orbit get closer to the planet?

uhohThe recent question How do we know the Moon was much closer than it is now? has piqued my interest. The answers are numerous and clear. But I started to wonder. The question includes the following fragments: ...is it an assumption based on the fact the moon is moving away right now, so it's a si...

orbital-mechanics tidal-forces planetary-science tidal-locking solar-system-evolution
@ErinAnne "UMBRA has already released an 0.16m/pixel image" some place where we can see it? How "released" is it? "Enquiring minds want to know"
Erin Anne
Erin Anne
06:45
@uhoh looks like it's here prnewswire.com/news-releases/… and other (25cm?) images are at umbra-open-data-catalog.s3-website.us-west-2.amazonaws.com/…
I guess it's Umbra, not UMBRA. I based that incorrect capitalization off of mastodon.social/@wikkit/110851235456141786
Erin Anne
Erin Anne
07:01
so far as I've found the 16cm image is just JPEGed into press releases but the 25cm imagery is the real deal with some kind of metadata that seems GIS-oriented
uhoh
uhoh
07:58
@ErinAnne sweet!

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