Author Topic: LIVE: Delta IV-M+(5,2) - NROL-47 - Vandenberg - January 12, 2018  (Read 57399 times)

Online ZachS09

The RS-68A engine should be in the process of throttling down in preparation for MECO.
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 13570
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 3025
  • Likes Given: 464
T+3 minutes. Fairing separation.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online ZachS09

4 minutes Mission Elapsed Time. MECO should have occurred at this time, which is usually followed by stage separation about 8 seconds later.

After stage separation, the RL-10B-2 engine should ignite for a long first burn, which is preceded by the engine nozzle extending into place during the short coast phase.
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

Online ZachS09

A final launch replay being shown.

With the news blackout in place, and based on the NROL-45 mission in February 2016, confirmation of mission success should be delivered to us within about an hour-and-a-half. And I guarantee you a press release WILL be issued.

I'll see you all next time; good afternoon.
"Liftoff of Falcon 9: the world's first reflight of an orbital-class rocket."

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 13570
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 3025
  • Likes Given: 464
Wrapping up coverage.

Showing launch replay.

End of webcast.
« Last Edit: 01/12/2018 09:17 PM by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline MATTBLAK

  • Elite Veteran & 'J.A.F.A'
  • Senior Member
  • *****
  • Posts: 3890
  • 'Space Cadets' Let us; UNITE!! (crickets chirping)
  • New Zealand
  • Liked: 802
  • Likes Given: 1508
The prelaunch burn off of the LH2 always makes me wince! Phew; what a scorcher...
"Those who can't, Blog".   'Space Cadets' of the World - Let us UNITE!! (crickets chirping)

Offline Craftyatom

  • Full Member
  • ***
  • Posts: 349
  • Software!
  • Arizona, USA
  • Liked: 252
  • Likes Given: 1454
I'm always surprised by how much the DIV, especially the Heavy, roasts itself, even with ROFIs.  Here's a screencap of the "lightly singed" core, just after liftoff.

And now we wait for confirmation of success.
All aboard the HSF hype train!  Choo Choo!

Offline Graham

  • Full Member
  • **
  • Posts: 220
  • Aerospace Engineer
  • New York
  • Liked: 215
  • Likes Given: 113
The prelaunch burn off of the LH2 always makes me wince! Phew; what a scorcher...

Almost seems like the ROFIs didn't work, that's the most burnt I've seen a Delta since Delta IV Heavy's first lunch, and by far the blackest single stick...

Edit: I'm not saying it's bad and not that it's not designed to ignite, just seems different man what we've seen recently
« Last Edit: 01/13/2018 12:14 AM by Graham »
I have loved the stars too fondly to be fearful of the night
- Sarah Williams

Offline Rocket Science

  • Senior Member
  • *****
  • Posts: 8173
  • NASA Educator Astronaut Candidate Applicant 2002
  • Liked: 2327
  • Likes Given: 5470
Great work with the coverage with all the delays, thank you! :)
"The laws of physics are unforgiving"
~Rob, Physics instructor, aviator, vintage auto racer

Offline zubenelgenubi

  • Full Member
  • ****
  • Posts: 1263
  • Arc to Arcturus, then Spike to Spica
  • Commonwealth of Virginia
  • Liked: 280
  • Likes Given: 806
Noted: the 1st stage insulation got a scorching this time after engine ignition!

(It is "designed" for such an occurrence, but it appears to have been "more than usual," compared to recent Delta IV launches?)
Support your local planetarium!

Offline Mapperuo

  • Assistant Webmaster
  • Administrator
  • Full Member
  • *****
  • Posts: 1610
  • Yorkshire
  • Liked: 397
  • Likes Given: 63

Online Chris Bergin

Now we wait for @torybruno to tweet "124". Single core Delta IV signs off from her West Coast career.

ARTICLE:
https://www.nasaspaceflight.com/2018/01/ula-delta-iv-nrol-47-launch-vandenberg/ - By William Graham

Offline Helodriver

  • Full Member
  • ****
  • Posts: 948
  • Liked: 5086
  • Likes Given: 530
Great views and sound from Jalama Beach. 8.5 miles southeast of SLC-6. This park is closed for most south Vandenberg launches as the polar trajectory goes directly overhead. Today's launch while not overhead, was only a few degrees from the zenith. As close as I've ever been to being under a departing vehicle. A few pix attached video and more high resolution stills later.

Offline Michael Baylor

  • Full Member
  • **
  • Posts: 240
  • Liked: 335
  • Likes Given: 161
GIF of the normal scorching as the excess hydrogen gas gets burned off.

Offline joncz

  • Veteran
  • Full Member
  • ***
  • Posts: 362
  • Atlanta, Georgia
  • Liked: 53
  • Likes Given: 132
Looks like a miniature right out of a 1960's SciFi movie!

Offline MATTBLAK

  • Elite Veteran & 'J.A.F.A'
  • Senior Member
  • *****
  • Posts: 3890
  • 'Space Cadets' Let us; UNITE!! (crickets chirping)
  • New Zealand
  • Liked: 802
  • Likes Given: 1508
Looks like a miniature right out of a 1960's SciFi movie!
Don't give the Hoaxtards any ideas :( ;)
"Those who can't, Blog".   'Space Cadets' of the World - Let us UNITE!! (crickets chirping)

Offline RedSky

  • Veteran
  • Full Member
  • ****
  • Posts: 485
  • Liked: 42
  • Likes Given: 2
Looks like a miniature right out of a 1960's SciFi movie!

More like from a Gerry Anderson show.  Thunderbirds or Captain Scarlet.  That terrain and sky just a wall mural.

Offline Space Ghost 1962

  • Senior Member
  • *****
  • Posts: 2552
  • Whatcha gonna do when the Ghost zaps you?
  • Liked: 2530
  • Likes Given: 1905
"How would you like your Delta IV? Lightly charred, mostly charred ... or fireball?"  ???

Online FutureSpaceTourist

  • Senior Member
  • *****
  • Posts: 4829
  • UK
    • Plan 28
  • Liked: 3476
  • Likes Given: 1126
While we await confirmation of a good flight, here’s an extra picture published by ULA.
« Last Edit: 01/12/2018 09:55 PM by FutureSpaceTourist »

Online RocketLover0119

  • Full Member
  • *
  • Posts: 127
  • Space Geek
  • Tampa, Florida
  • Liked: 47
  • Likes Given: 84
who needs a toaster when you got an RS-68!  ;) ;) :D
"The Falcon has landed"

Tags: