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  #1  
Old 05-02-2017, 06:36 AM
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Default NEW F9 descent views!

Hello All,

Thanks to an NRO security restriction, new and spectacular--some almost frighteningly so!--views of Monday's Falcon 9/NROL-76 launch and Stage 1 re-entry & landing were webcasted by SpaceX.

The video coverage of Monday’s Falcon 9 launch and first stage landing at Cape Canaveral includes external camera views of the staging, the Stage 1 boost-back and re-entry engine burns, and its landing that have never been broadcast before (the links are below). This was done because the NRO (National Reconnaissance Office) requested that SpaceX *not* (as they normally do) show onboard video of/from the Falcon 9’s second stage, so that the exact orbit of its classified payload—the NROL-76 spy satellite—which is speculated to be a radar imaging satellite rather than a camera-equipped one, would be more difficult to determine (knowing its orbit parameters would give clues about its nature), and:

The first stage coasted to a peak altitude of more than 100 miles (about 166 km) before returning to land at the Cape, and apparently one payload fairing half was also recovered from the Atlantic (SpaceX is working on recovering the payload fairings on a floating “bouncy castle” platform, so that—like the first stages of the rockets—they too can be reused). Events seen in the onboard views are slightly later than the external-camera ones, probably due to buffering of the downlinked video signal from the rocket. Below are six video links:

[Launch to Stage 1 landing, with article] http://spaceflightnow.com/2017/05/0...ent-into-space/

[Launch to Stage 1 landing] http://spaceflightnow.com/2017/05/0...alcon-9-rocket/

[Stage 1 descent and landing close-up views] www.youtube.com/watch?v=GoRKhH8J1YQ

[Close-up staging, boost-back burn, and landing video from Elon Musk] https://www.instagram.com/p/BTjVdLVB1bO/

[Stage 1 descent & landing video, with sonic booms!] www.youtube.com/watch?v=1PAKpTDCvtw

[Google link citations on the mission, including videos] www.google.com/#q=NROL-76+launch+webcast
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Old 05-02-2017, 07:24 AM
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That was some nice camera work tracking it all the way through separation and return.
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Old 05-02-2017, 08:03 AM
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Quote:
Originally Posted by tbzep
That was some nice camera work tracking it all the way through separation and return.
Indeed! I hope they continue to do this. As the posters on the NASASpaceFlight.com Forum described, you can even see the engine ignition and shutdown sequences; for the boost-back and re-entry burns (which both used three engines), the center engine re-lit first (to provide control authority and to settle the RP-1 and LOX in their tanks), and then two other engines ignited. This is dramatically visible during the external view of the re-entry burn--the center engine generates the "ring of fire" bow shock wave, which suddenly becomes an oval of flame as the two side engines start firing--and the clouds rushing upward give an indication of how rapidly the stage is plunging Earthward! Also:

During the coasting portion of the return, one or more engines are continuously venting what looks like LOX vapor (maybe to keep the to-be-used engines chilled down to start temperature?). And that extreme close-up of the falling and vapor-venting (and then firing) first stage is almost scary (I'm sure it was taken through a telephoto lens); it looks like it's going to hit the camera (like the falling, spinning, burning Atlas sustainer engine and rear airframe cone from the exploded first Atlas-Centaur test vehicle [staring at 1:08 *here* www.youtube.com/watch?v=vEHO7YIpu-I ], which came just as "close" to the camera)!
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Old 05-02-2017, 05:20 PM
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Wow! That was extremely cool, blackshire! Really enjoyed that! Great footage and PERFECT pairing of music to go with it... Best I've seen since "Trinity an Beyond-the atomic bomb movie"

So many people put stupid music in their videos (and movies nowadays) that totally doesn't match the dynamic or grandeur of the visuals... Good music choice can give you shivers when it's done right... And this was... It makes mediocre into something great... Like the music in "Mission to Mars" made that movie...

Later! OL J R
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Old 05-02-2017, 05:36 PM
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Quote:
Originally Posted by luke strawwalker
Wow! That was extremely cool, blackshire! Really enjoyed that! Great footage and PERFECT pairing of music to go with it... Best I've seen since "Trinity an Beyond-the atomic bomb movie"

So many people put stupid music in their videos (and movies nowadays) that totally doesn't match the dynamic or grandeur of the visuals... Good music choice can give you shivers when it's done right... And this was... It makes mediocre into something great... Like the music in "Mission to Mars" made that movie...

Later! OL J R
You're welcome (although I'm not sure which of the videos you're referring to--the visuals were so riveting that I can't, at this moment, remember *any* accompanying music)! But speaking of music that fits perfectly with the images, this SpaceX video, titled "Falling Back to Earth" (see: www.youtube.com/watch?v=4_sLTe6-7SE ), does it superbly...
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Old 05-02-2017, 11:14 PM
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Which video had the music, the Google/YouTube video?
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Old 05-05-2017, 12:06 PM
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Quote:
Originally Posted by luke strawwalker
Wow! That was extremely cool, blackshire! Really enjoyed that! Great footage and PERFECT pairing of music to go with it... Best I've seen since "Trinity an Beyond-the atomic bomb movie"

So many people put stupid music in their videos (and movies nowadays) that totally doesn't match the dynamic or grandeur of the visuals... Good music choice can give you shivers when it's done right... And this was... It makes mediocre into something great... Like the music in "Mission to Mars" made that movie...

Later! OL J R



The score to "Koyaanisqatsi" (the film this is excerpted from) is by Philip Glass ("Einstein On The Beach", "Glassworks", "Songs From Liquid Days"). The name is from a Hopi word meaning "life out of balance" , which I have been all too familiar with lately, though hopefully that is now past!

https://www.koyaanisqatsi.org/films/koyaanisqatsi.php
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Old 05-05-2017, 06:26 PM
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The music from the sequel, Powaqatsi, has been used in several films. This piece from it is a favorite:

https://www.youtube.com/watch?v=6ZXa5id8FXk
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Old 05-06-2017, 01:44 AM
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Quote:
Originally Posted by stefanj
The music from the sequel, Powaqatsi, has been used in several films. This piece from it is a favorite:

https://www.youtube.com/watch?v=6ZXa5id8FXk



Interesting. Of all his pieces, this is my *least* favorite by far.
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Old 05-06-2017, 10:45 AM
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Quote:
Originally Posted by dlazarus6660
Which video had the music, the Google/YouTube video?


Yes, the spinning burning Atlas Centaur... the center engine off the Atlas and bottom of the tank/thrust structure...

Later! OL J R

PS. Sorry for not answering sooner... just got home after having my mom in the hospital for the last 9 days...
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