Saturday, August 15, 2026

It's one-half day

Not one half of a day, one-half day. 8/16, as we write the date as a fraction, reduces to 1/2. 

Sorry.

Around here in East Central Florida, also called the Space Coast, our highlight for this evening is we have a Falcon 9 launch from Cape Canaveral SFS. The launch is for the Globalstar 2-R Mission. The launch time is 9:12 PM EDT. 

The Globalstar global mobile communications network offers global, digital, real-time voice, data, and fax via a constellation of minisatellites. The constellation operates in a 1410 km orbit inclined at 52 degrees.

In early 2022, Globalstar contracted with MDA for the construction of 17 new 2nd generation refresh satellites to replenish the existing constellation. Rocket Lab is sub-contracted to build the satellites' buses and the launch dispensers. 

The launch will be the 14th flight of B1090, and the booster will return to the launch site and we're being "warned" that sonic booms will be heard around here. 

"But that's not all" There's a second launch tonight, this time from Vandenberg SFB and this one's launch time is 9:50 PM EDT. This is the launch of a US Space Force classified payload, and the booster is B1088 on its 18th flight.

USSF-366 is a classified mission for the United States Space Force. It is possibly a batch of classified LEO satellites for a US government entity based on SpaceX’s Starshield satellite bus, based on locations of rocket stage drop zones being exact fits with previous Starlink Group 15 launches. 

Because it's from the other side of the country, this isn't one we can go outside to see, but the 38 minute time delay between the east and west coast launches means we'll be able to watch both on NASA Spaceflight's YouTube Channel. 

“A few moments later ...” OK, an hour later...

Now those two are over, both successful, both fully as expected. The launch itself induced a long-lasting rumble causing a rattle that I could hear in the house, and a the sonic boom from the booster returning to launch site was audible - like someone kicked the back door. 

Of course this isn't from tonight's missions; not with the sun low on the horizon like that. It's a picture I have on file, from Starlink 10-50 mission on July 5, 2026



11 comments:

  1. It's SpaceX. So it's a launch every day or so. Without issues.

    Watched Project Hail Mary two days ago and The Martian yesterday. How different both movies would have been if SpaceX was the launch provider.

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    1. Did you catch the SpaceX warehouse in Red Horizon a few weeks ago???

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    2. Personally, I never heard of Red Horizon. IMDB says something like it's a short from 2021, but doesn't even give what "short" means? That is, no run time, like 15 minutes, a full hour or just what.

      When you say "in Red Horizon a few weeks ago," that sounds like something else.

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    3. This:
      https://www.youtube.com/@RedHorizonUSA
      is what I was talking about.

      Not particularly realistic, but interesting.

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    4. Hmmm. Having made a full length movie, I can see all the same problems I had in these (which is okay). He needs better audio editing...he's simply accepting the audio that Imagine puts out (the only thing I keep from their audio is the voices). Continuity is pretty good. His physics is laughable (doesn't even try to match the gravity, and I particularly liked when the guy blew the dust off a thing through his helmet). But kudos for effort and keeping it going.

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    6. First off, thanks, Mark.

      I have what I'll call a personality problem that when I see a page full of videos going from half hour to hours, I'm intimidated. Way too much to catch up on. I might try to indulge in one of the hour or two long stories to see what I think of it.

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  2. SiG are you looking forward to your first SuperHeavy sonic boom? I think it may be a little bit more than a kick at the back door.

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    1. I can hardly express how much I'm looking forward to it. Most powerful rocket in human history? You bet!

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  3. The corrected version of "Mulligan's Island", if anyone cares (the one I posted earlier today had one fairly critical scene completely forgotten in the final edit):

    https://www.youtube.com/watch?v=vgWv94l_2dA

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