Discover and read the best of Twitter Threads about #apogee

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#USSPACECOM deputy cmdr, Lt Gen John Shaw at @ascendspace on Russian DA-ASAT test: We are still characterizing this event. We expect the debris will grow over time. #Perigee, #apogee event will widen. "It will become a threat that we will have to deal with." #ASAT #Russia
Shaw: This isnt' the beginning of such activity. #Russia conducted a similar test in April, though it didn't target a #satellite. Russia is showing "disregard of the sustainability of #space."
Shaw likens tracking objects in #space to book version of #JurassicPark: Scientists had automated sensors to track dinosaurs & algorithm to count the expected number of dinos. Problem is, it didn't account for the population of dinos rising. ...
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A few days ago I tweeted about #Trident-II 5D #SLBM tests and their range. But how about apogees?
One informative test was that of 10 September 2013. This one was observed, by accident, and these observations learn us a lot. Here is a thread with an analysis.
On 10 September 2013, German photographer @JanHattenbach was making a photographic time-lapse of the night sky at the island of La Palma, when something odd streaked through his view. Here is a time-lapse movie of the event, courtesy of Jan:
At the time, as Jan was wondering what he photographed exactly, I suggested that this might be a ballistic missile test. Which was shortly after confirmed, when the US Navy acknowledged a Trident-II 5D #SLBM test that night.
Read 12 tweets

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