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Do American lawyers really pronounce 'sine die' as 'sye-nee dai'? I hear my old Latin teacher rolling in his grave..
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More cubesat deploys next week from
@Nanoracks. I believe the NRCSD-17 quad deployer payloads (5 sats) were launched on SpX CRS-19 and the triple deployer payloads (4 sats) were launched on NG-12Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
It's unclear which silo the Minuteman was launched from but the previous FTU flight went from LF-04.
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Minuteman III flight FTU-2 was launched from Vandenberg AFB at 0833 UTC Feb 5; the reentry vehicle splashed down near Kwajalein. The FTU series tests replacement components retrofitted to the 1970-era missiles.
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Meanwhile debris object 45181 has also been cataloged, creating a further gap of 49 objects - no idea what for.
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Debris objects 45128-45132 cataloged, leaving gaps 45118-45127 in the catalog presumably reserved for more of the NG-12 cubesats in addition to 45113-17 already associated with the mission. That's 15 gaps, but current info suggests 14 cubesats, so still a mystery to solve..
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The TEPCE cubesat reentered on Feb 1. It was launched last June and was meant to deploy a 1 km tether. A large change in its decay rate on Nov 17 suggests the tether was indeed deployed on that date, leading to its rapid reentry. (TEPCE in red on the plot)pic.twitter.com/shhQhSgdv6
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Jonathan McDowell proslijedio/la je Tweet
The details of Shadow's epic fail keep getting worse. They deployed the Android app through a free version of TestFairy, which caps the number of users at 200. https://www.theverge.com/2020/2/4/21122737/iowa-democractic-caucus-voting-app-android-testfairy-screenshots-app-store …pic.twitter.com/fogUbRxJ9k
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Jonathan McDowell proslijedio/la je Tweet
Strange women lying in ponds distributing swords doesn't look so bad now
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I redid this plot to put payloads at the top of the sandchart, I think that makes it clearer how the Cubesat Revolution in 2017 transformed the low-LEO object population. Again, this is objects < 100 kg and below 600 km.pic.twitter.com/wxnfsI0arw
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You can see that in upper LEO the situation is reversed: small debris dominates the population, and for the massive (100 kg+) objects junk dominates active sats.
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For completeness, here are corresponding plots for Upper LEO (above 600 km)pic.twitter.com/kzAbK79SJx
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To belabor the point from the first plot, here is a histogram of the current distribution of massive objects in low orbitpic.twitter.com/uvWFqVBmPJ
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Corresponding data for low mass objects. There is relatively little small debris in Low LEO, it reenters quickly, so the payload/small debris ratio is much bigger than in high orbitspic.twitter.com/mgTZwhoPPI
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Medium/high mass (100 kg and up) objects in "Low LEO" (<600 km) versus time. Note that Starlinks now dominate this category: large objects in low orbit.pic.twitter.com/6YOUCzg9ej
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Jonathan McDowell proslijedio/la je Tweet
The idea of a Democracy app that doesn't work and then when you call the support line you find it busy because they didn't plan for failure is not just *peak* 2020 but also an obnoxiously on-point metaphor.
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Spaceway 1 continues orbit raising, now 221 km above GEO
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It is now clear (as expected) that official orbit TLE data will not be made available for USA 294 and the associated Electron rocket stages. I encourage the hobbyist community to try and find them!
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Jonathan McDowell proslijedio/la je Tweet
It looks like USA 271—an active US satellite in GEO—will go on the Lost List (no TLEs for over 30 days) tomorrow. I have marked it as NCE (No Current Elements) to make it easier to see if we ever start receiving new data on the Restricted Objects page: https://celestrak.com/satcat/restricted.php …pic.twitter.com/qRMcHTSM09
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