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Launch Stuff

#61
Yazata Offline
Firefly still hasn't released the cause of the rocket's failure (they may still be unsure) but they have issued what has to be the definitive video. The beauty of it is that it includes mission control audio.

Several things that I noticed.

1. Engine startup was accompanied by a distinctive honking sound. These sounds have been heard with SpaceX's Raptors as well and typically indicate engine vibrations.

2. There was something on the mission control net right after liftoff that may or may not have been an anomaly callout.

3. Video may or may not show one engine struggling right after liftoff. Its exhaust plume looked different than the others.

4. A callout noted a "dip in V-mag" (velocity magnitude?) that may or may not indicate that the rocket was accelerating more slowly than expected.

5. The loss of control appears to have occurred right after the rocket went supersonic, around when "max-Q" was expected. (Maximum aerodynamic stresses on the vehicle.)

6. This video made it look like the fragments were ejected subsequent to the loss of control, when the rocket was already broadside to the supersonic airflow. The forces associated with that might easily start a rocket fragmenting.

This video makes me modify the conclusion that I jumped to yesterday, that an explosive engine failure right before loss of control was the culprit. Today it's looking more like engine trouble set in right after liftoff. The loss of control that led to flight termination might conceivably have been the result of there not having been enough thrust to make it through 'max-q'.

There's probably lots more to see here for those with trained eyes. It's interesting that's for sure.



https://www.youtube-nocookie.com/embed/qFjoPw0CfAU
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#62
Yazata Offline
Tomorrow January 3, the 2023 rocket season starts off bright and early at 9:56 AM EST (6:56 AM PST) with SpaceX's Transporter-6 mission. This will be launched from SLC-40 at Cape Canaveral Space Force Station by veteran booster B1060, on its 15th flight. This will be a Return to Launch Site landing at the landing zones at Cape Canaveral, which is always spectacular. If it succeeds, it will be the second booster to accomplish 15 flights.

Transporter-6 is the next in SpaceX's series of rideshare missions, where a whole lot of cubesats and picosats split the price of a ride. This trip will carry 114 of these little satelites! So it might be interesting to see how all those satellites are deployed in space.

https://nextspaceflight.com/launches/details/6807


https://www.youtube-nocookie.com/embed/lSRXacd8wU8
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#64
Yazata Offline
Tomorrow, Saturday Jan 14, a triple-barreled Falcon Heavy launch is on tap. It's a US Space Force launch called USSF 67. Payload will be several classified satellites for the Space Force. I believe that a big part of the mission will be testing out a "bus" spacecraft capable of accepting different satellites provided that they have the proper adapter and dropping them off to precise orbits. (Just the thing for spy satellites that they might want to launch on short notice in the future.)

https://nextspaceflight.com/launches/details/4989

The side cores will be B1064 and B 1065, each on its second trip to space. They should be landing at Lz-1 and Lz-2 at Cape Canaveral. The center core is B1070 on its first flight, and it will be expended.

Time is 2:55 PM PST/5:55 PM EST

Felix will be streaming it


https://www.youtube-nocookie.com/embed/0161iWgPe7s
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#65
Yazata Offline
Today's Falcon Heavy launch has slipped back to tomorrow (Sunday Jan 15, 2023) at the same time (2:55 PM PST/5:55 EST)

I'm not sure why, but it looks like SpaceX was getting behind in completing their prelaunch checklist getting the rocket prepped, and were running up against the end of their launch window.

SpaceX photo


[Image: FmeKHO5aMAAWaOv?format=jpg&name=4096x4096]
[Image: FmeKHO5aMAAWaOv?format=jpg&name=4096x4096]

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#67
Yazata Offline
Launch

https://twitter.com/SpaceflightNow/statu...2575208454

Truly extraordinary Twitter video from SpaceflightNow showing Falcon Heavy side booster BECO (booster engine cut-off), their separation from the center core, their 180 degree flip, and their engine relight for their boost-back burn.

https://twitter.com/SpaceflightNow/statu...7332782083

And the two side boosters landing at Cape Canaveral. (Anyone who grew up on old science-fiction knows this is how it's done!)

https://twitter.com/SpaceflightNow/statu...7615344640
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#68
C C Offline
(Jan 16, 2023 12:57 AM)Yazata Wrote: Launch

https://twitter.com/SpaceflightNow/statu...2575208454

Truly extraordinary Twitter video from SpaceflightNow showing Falcon Heavy side booster BECO (booster engine cut-off), their separation from the center core, their 180 degree flip, and their engine relight for their boost-back burn.

https://twitter.com/SpaceflightNow/statu...7332782083

And the two side boosters landing at Cape Canaveral. (Anyone who grew up on old science-fiction knows this is how it's done!)

https://twitter.com/SpaceflightNow/statu...7615344640

Some major UAP activity apparently sighted in Bermuda. Can't fathom why Tim Hulse's vid had this advisory on it: "The following media includes potentially sensitive content."

https://twitter.com/i/status/1614778528519659521
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#69
Yazata Offline
The US Space Force just confirmed that their satellites are in good geosynchronous orbits

SpaceX video of the two side boosters arriving back at Cape Canaveral. (Elon says this is the way his ships will land on Mars.)

https://twitter.com/SpaceX/status/1614793196483284994

Some extraordinarily good video of booster sep and boost-back by @astroferg/Astronomy Live (watch this on full screen)

https://twitter.com/astroferg/status/161...2975883270

SpaceX photo (I want to see Starship do this)


[Image: FmjiBOuaUAAwaDm?format=jpg&name=4096x4096]
[Image: FmjiBOuaUAAwaDm?format=jpg&name=4096x4096]





(Jan 16, 2023 02:04 AM)C C Wrote: Some major UAP activity apparently sighted in Bermuda. Can't fathom why Tim Hulse's vid had this advisory on it: "The following media includes potentially sensitive content."

https://twitter.com/i/status/1614778528519659521

Looks like Bermuda got a spectacular sky-show. (Take that "skeptics"!) I wouldn't have expected it, since Bermuda is a long way offshore.

I believe that the brightness of the "jellyfish" plume is a function of the rocket launching right before dawn or right after dusk. The rocket rises out of the Earth's shadow into the sunlight above and the contrast makes the exhaust plume stand out.

I didn't see any "sensitive content" warning when I watched it. My guess is the software algorithm tagged it for some reason, and a human removed it. Elon (the Chief Twit) might have been following what people were saying about his Falcon Heavy, so he might have had it removed himself.
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