Author Topic: SpaceX Falcon 9 / Dragon 2 : SpX-DM1 : March 2, 2019 : DISCUSSION  (Read 601775 times)

Offline neoforce

  • Full Member
  • ****
  • Posts: 427
  • Liked: 371
  • Likes Given: 20
Broadcast of the view inside the cabin seemed to have some transmission issues. But it did look like the “zero gee indicator” earth plushie did start to float away after dragon separation.

But it looked like it didn’t start floating until separation?  If so, why didn’t it start floating as soon as SECO?

Offline lrk

  • Full Member
  • ****
  • Posts: 884
  • Minnesota
  • Liked: 755
  • Likes Given: 1128
Was it just me, or was there lightning in the distance a couple of minutes before launch?  Or was that something else? 

Offline DigitalMan

  • Full Member
  • ****
  • Posts: 1701
  • Liked: 1201
  • Likes Given: 76
I saw no lightning.  It was exceptionally clear.

Offline lrk

  • Full Member
  • ****
  • Posts: 884
  • Minnesota
  • Liked: 755
  • Likes Given: 1128
Broadcast of the view inside the cabin seemed to have some transmission issues. But it did look like the “zero gee indicator” earth plushie did start to float away after dragon separation.

But it looked like it didn’t start floating until separation?  If so, why didn’t it start floating as soon as SECO?

Unless dragon starts to accelerate backwards there is nothing to make it float away from the seat.  Presumably the (slight) jolt of separation helped push it away. 

Offline High Bay 4

  • Member
  • Posts: 23
  • Chicago
  • Liked: 7
  • Likes Given: 85
I sure do miss the good old days when NASA TV would give you launch replays from each camera position at the end of live coverage. 😥

Offline punder

  • Full Member
  • ****
  • Posts: 1261
  • Liked: 1858
  • Likes Given: 1472
I thought I heard the NASA PA person say the first operational crew would fly with two as yet unannounced international partner astronauts. Did I misunderstand??

Offline ugordan

  • Senior Member
  • *****
  • Posts: 8560
    • My mainly Cassini image gallery
  • Liked: 3628
  • Likes Given: 775
Why would SpaceX's connection to youtube servers be worse than in the past? Very inexplicable. I hope the footage gets re-uploaded later on in reasonable quality.

It's not SpaceX, it's Youtube. They changed something about live streaming for everyone a couple of months ago that it introduced these horrific compression artifacts at scene changes. SpaceX archived webcasts return to the full intended quality after a while.

Offline lrk

  • Full Member
  • ****
  • Posts: 884
  • Minnesota
  • Liked: 755
  • Likes Given: 1128
I saw no lightning.  It was exceptionally clear.

Then what was the flash at T-2:15 or so? 


Offline aviators99

  • Member
  • Posts: 35
  • Liked: 26
  • Likes Given: 8
Was it just me, or was there lightning in the distance a couple of minutes before launch?  Or was that something else?

Yes, there was lightning in the video.  But when you consider how far away the camera was (and thus, how much it is zoomed), the lightning that was expected to be hundreds of miles away would be seen quite clearly in that video.  But it was definitely lightning.

Online HVM

  • Full Member
  • ****
  • Posts: 759
  • Finland
  • Liked: 1212
  • Likes Given: 618
Was it just me, or was there lightning in the distance a couple of minutes before launch?  Or was that something else?
Yes with the close shot with Dragon, and after launch; in the first stages view of coast of Florida!
« Last Edit: 03/02/2019 07:33 am by HVM »

Offline Tonioroffo

  • Full Member
  • *
  • Posts: 131
  • Belgium
  • Liked: 83
  • Likes Given: 107
It's not SpaceX, it's Youtube. They changed something about live streaming for everyone a couple of months ago that it introduced these horrific compression artifacts at scene changes. SpaceX archived webcasts return to the full intended quality after a while.

I switched to the NASA youtube feed and it looked quite a bit better.

Offline StevenV

  • Member
  • Posts: 14
  • Liked: 7
  • Likes Given: 1

It's not SpaceX, it's Youtube. They changed something about live streaming for everyone a couple of months ago that it introduced these horrific compression artifacts at scene changes. SpaceX archived webcasts return to the full intended quality after a while.

The SpaceX stream was also at 60 fps, which might have added to the bitrate problem some people had.

Offline aviators99

  • Member
  • Posts: 35
  • Liked: 26
  • Likes Given: 8
Why would SpaceX's connection to youtube servers be worse than in the past? Very inexplicable. I hope the footage gets re-uploaded later on in reasonable quality.

It's not SpaceX, it's Youtube. They changed something about live streaming for everyone a couple of months ago that it introduced these horrific compression artifacts at scene changes. SpaceX archived webcasts return to the full intended quality after a while.

NASA TV had the same exact feed, but much clearer.  Unfortunately, they were about 40 seconds behind.

Offline Aussie_Space_Nut

  • Full Member
  • **
  • Posts: 280
  • South Australia
  • Liked: 130
  • Likes Given: 430
I'm very happy! Excellent launch, love the zero g indicator! :-)

Still a ways to go but great job so far NASA & SpaceX.

Offline Tonioroffo

  • Full Member
  • *
  • Posts: 131
  • Belgium
  • Liked: 83
  • Likes Given: 107
Was it just me, or was there lightning in the distance a couple of minutes before launch?  Or was that something else?
Yes both with the close shot with Dragon, and the first stages view of coast of Florida!

Saw a few of those as well.  Of course, these shots are done with long telelenses and cause depth compression - so the lightning might have been very far away.

Offline DigitalMan

  • Full Member
  • ****
  • Posts: 1701
  • Liked: 1201
  • Likes Given: 76
I'm happy to have seen the launch even though I missed the lightning.

I don't have a decent camera so I wasn't able to capture pictures of the S2 jellyfish.  Hopefully someone caught it.

Offline Johnnyhinbos

  • Senior Member
  • *****
  • Posts: 3864
  • Boston, MA
  • Liked: 8095
  • Likes Given: 946
Can’t believe we just witnessed an historic launch and everyone is talking about frame rates...
John Hanzl. Author, action / adventure www.johnhanzl.com

Offline tyrred

  • Full Member
  • ****
  • Posts: 929
  • Seattle
  • Liked: 759
  • Likes Given: 21440
Why would SpaceX's connection to youtube servers be worse than in the past? Very inexplicable. I hope the footage gets re-uploaded later on in reasonable quality.

It's not SpaceX, it's Youtube. They changed something about live streaming for everyone a couple of months ago that it introduced these horrific compression artifacts at scene changes. SpaceX archived webcasts return to the full intended quality after a while.

I ended up switching to the SpaceX.com video feed, which was ultimately less choppy than any of the other feeds (on my computer, at least).

There has been some solar activity lately that may have played a role in the quality, as well. Space weather is a real thing.

NASA TV had the same exact feed, but much clearer.  Unfortunately, they were about 40 seconds behind.

Offline clongton

  • Expert
  • Senior Member
  • *****
  • Posts: 12102
  • Connecticut
    • Direct Launcher
  • Liked: 7500
  • Likes Given: 3809
Crew Dragon is in orbit. Got up to watch whole thing. An Historic mission is now underway. It's really early here on the east coast but I'm very glad I got up to watch it. Congratulations to SpaceX and NASA. A special thanks to all on the Updates thread for excellent coverage. Going back to bed now. G'night all.
« Last Edit: 03/02/2019 07:24 am by clongton »
Chuck - DIRECT co-founder
I started my career on the Saturn-V F-1A engine

Offline GregTheGrumpy

I note the plush Zero-G indicator seemed to have moved, possibly between MECO and SES.  It was closer to the camera earlier, then more to the left of the seat during a shot when S2 was under its own power.

Tags:
 

Advertisement NovaTech
Advertisement Northrop Grumman
Advertisement
Advertisement Margaritaville Beach Resort South Padre Island
Advertisement Brady Kenniston
Advertisement NextSpaceflight
Advertisement Nathan Barker Photography
0