Author Topic: Delta IV-Heavy - NROL-44 - Canaveral SLC-37B - December 10/11, 2020 (01:09 UTC)  (Read 170013 times)

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
https://twitter.com/ulalaunch/status/1298754417563504642

Quote
Retraction of the Mobile Service Tower has begun. An undercarriage transport system with drive trucks in all four corners of the MST is moving the 33-story building at a top speed of 0.25 miles per hour. bit.ly/div_nrol44
« Last Edit: 08/26/2020 11:08 pm by FutureSpaceTourist »

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
https://twitter.com/ulalaunch/status/1298762498716426240

Quote
Rollback of the Space Launch Complex-37 tower is nearing completion. Preps are progressing for #NROL44.

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
https://twitter.com/ulalaunch/status/1298767511685599233

Quote
The Mobile Service Tower at Space Launch Complex-37 has been retracted and secured in the launch position, revealing the United Launch Alliance #DeltaIVHeavy rocket for the #NROL44 launch. Follow our live launch blog for updates at: bit.ly/div_nrol44

Offline gongora

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 9348
  • US
  • Liked: 11930
  • Likes Given: 5282
Countdown Holding
This is Delta Launch Control at T-minus 4 hours, 15 minutes and holding. The countdown has entered the first of two planned holds in today's timeline.

This pause was scheduled to last 15 minutes. However, the hold will be extended about an hour to allow all required activities to be accomplished prior to fueling.

https://www.ulalaunch.com/missions/next-launch/delta-iv-heavy-nrol-44

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
https://twitter.com/ulalaunch/status/1298802272256831489

Quote
An issue with a heater has been reported by the launch team. The issue is being referred to Anomaly Chief Dave McFarland for troubleshooting steps. The AC position in the control room that directs engineering teams work to resolve technical issues that arise during the count.

Edit to add:

https://twitter.com/nextspaceflight/status/1298801050346876928

Quote
The ULA team is currently troubleshooting an issue with a heater on the launch vehicle. A team is being sent to the pad to attempt a fix. With the build-in hold having to be extended, a new T-0 will be announced once teams are ready to proceed. #NROL44 #DeltaIVHeavy
« Last Edit: 08/27/2020 02:21 am by FutureSpaceTourist »

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
ULA photos from tower roll-back

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
https://twitter.com/ulalaunch/status/1298822911969636352

Quote
The #NROL44 launch team continues to stand by while pad technicians work through the heater issue at the pad. Once the issue is resolved, mission managers will establish a new target launch time and resume the countdown to begin #DeltaIVHeavy fueling tonight. Weather remains GO.

Edit to add:

twitter.com/nextspaceflight/status/1298826580790112257

Quote
There is now a pneumatic issue that the launch teams are looking into. The countdown remains in an extended hold. #NROL44 #DeltaIVHeavy

https://twitter.com/nextspaceflight/status/1298827663822303232

Quote
Per ULA: While the heater issue is being worked, engineers are performing a precautionary data review of pressure measurements.
« Last Edit: 08/27/2020 03:43 am by FutureSpaceTourist »

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
:)

https://twitter.com/ulalaunch/status/1298830550434828288

Quote
Anomaly Chief Dave McFarland in the Delta Operations Center reports successful resolution of the heater issue that technicians had been troubleshooting. The problem is resolved for launch of #DeltaIVHeavy tonight. bit.ly/div_nrol44

Edit to add:

https://twitter.com/nextspaceflight/status/1298830807549636609

Quote
ULA says that the issue on a nosecone heater has been fixed. Two of six fuses were blown and have since been replaced. Teams are recommending that they proceed with the countdown. #NROL44 #DeltaIVHeavy
« Last Edit: 08/27/2020 03:55 am by FutureSpaceTourist »

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 32943
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 21790
  • Likes Given: 3957
"[email protected]
The pneumatics data review is continuing. We will be holding off on resumption of the #NROL44 countdown until that work is completed. Clocks are holding at T-minus 4 hours and 15 minutes."

twitter.com/ulalaunch/status/1298839134165925888
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline pb2000

  • Full Member
  • ****
  • Posts: 612
  • Calgary, AB
  • Liked: 686
  • Likes Given: 226
"[email protected]
The pneumatics data review is continuing. We will be holding off on resumption of the #NROL44 countdown until that work is completed. Clocks are holding at T-minus 4 hours and 15 minutes."

twitter.com/ulalaunch/status/1298839134165925888
So net 04:40 EDT?

Coffee pot off, alarm clock on for me.
Launches attended: Worldview-4 (Atlas V 401), Iridium NEXT Flight 1 (Falcon 9 FT), PAZ+Starlink (Falcon 9 FT), Arabsat-6A (Falcon Heavy)
Pilgrimaged to: Boca Chica (09/19 & 01/22)

Offline zubenelgenubi

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 8827
  • Arc to Arcturus, then Spike to Spica
  • Sometimes it feels like Trantor in the time of Hari Seldon
  • Liked: 5311
  • Likes Given: 47758
Posting a reminder in-thread that today's launch window stretches from 0612 to 1025 UTC.
Support your local planetarium! (COVID-panic and forward: Now more than ever.)
My current avatar is saying "i wants to go uppies!"

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 32943
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 21790
  • Likes Given: 3957
Scrub!

twitter.com/ulalaunch/status/1298853251648040961

"Launch Director Lou Mangieri has announced that we will not continue with the #DeltaIVHeavy rocket countdown operations today for #NROL44. Another launch attempt will be possible in 24 hours."
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline zubenelgenubi

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 8827
  • Arc to Arcturus, then Spike to Spica
  • Sometimes it feels like Trantor in the time of Hari Seldon
  • Liked: 5311
  • Likes Given: 47758
The pneumatics issue could not be solved within the launch window?
***

Are there NOTAMs or NOTMARs for the three CBCs?
***

The launch window on August 26 opened at 0616 UTC.
The launch window on August 27 opened at 0612 UTC.
If the launch window opening regresses 4 minutes per day, then the launch window on August 28 should open at 0608 UTC.
« Last Edit: 08/27/2020 07:11 am by zubenelgenubi »
Support your local planetarium! (COVID-panic and forward: Now more than ever.)
My current avatar is saying "i wants to go uppies!"

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
New L-1 launch weather forecast still 80% GO

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
Confirmation:

twitter.com/ulalaunch/status/1298884316282392576

Quote
The launch of the United Launch Alliance #DeltaIVHeavy #NROL44 mission was scrubbed today due to an issue with a critical ground pneumatics control system. The team needs additional time to evaluate and resolve the issue.

https://twitter.com/ulalaunch/status/1298884355213885442

Quote
The launch is planned for Friday, Aug. 28 from Space Launch Complex-37 at Cape Canaveral Air Force Station. The forecast shows an 80 percent chance of favorable weather conditions for launch. The launch time is 2:08 a.m. EDT.

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
https://twitter.com/julia_bergeron/status/1298972711037939717

Quote
The mobile service tower is in place as @ulalaunch works the pneumatics issue that that scrubbed the early morning launch attempt for NROL-44. The @NASASpaceflight team is ready to continue coverage of the weekend launch events!
nasaspaceflight.com/2020/08/ula-nr…

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
twitter.com/ulalaunch/status/1299049908108963841

Quote
The launch of the United Launch Alliance #DeltaIVHeavy #NROL44 mission is now set for Sat., Aug. 29. Additional time is needed for the team to validate the appropriate path forward with the ground pneumatics control system.

https://twitter.com/ulalaunch/status/1299050194085072896

Quote
The launch will take place from Space Launch Complex-37 at Cape Canaveral Air Force Station. The forecast shows an 80 percent chance of favorable weather conditions for launch. The launch time is 2:04 a.m. EDT. bit.ly/div_nrol44
« Last Edit: 08/27/2020 07:09 pm by FutureSpaceTourist »

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 33307
  • UK
    • Plan 28
  • Liked: 58625
  • Likes Given: 26237
https://twitter.com/considercosmos/status/1299128297884975110

Quote
Have you ever seen a rocket shadow cast into the sky? 🤔 Watch the @ulalaunch Delta IV emerge from the mobile service tower as day fades to night... then back into day again #timelapse #NROL44

Offline CJ

  • Full Member
  • ****
  • Posts: 1300
  • Liked: 1280
  • Likes Given: 540
I'm posting here because there's confusion about the launch time. Some mentions of it are UTC, others ET, and a couple (not here) just list a time, not the timezone or date. 

Per ULA's website,
Quote
Launch Date: Aug. 29, with a launch time of 2:04 a.m. EDT

That is 06:04 a.m. UTC Aug 29th

This is 11:04 p.m. PST, Aug 28th

Offline LouScheffer

  • Senior Member
  • *****
  • Posts: 3073
  • Liked: 5393
  • Likes Given: 683
Quote
The launch of the United Launch Alliance #DeltaIVHeavy #NROL44 mission is now set for Sat., Aug. 29. Additional time is needed for the team to validate the appropriate path forward with the ground pneumatics control system.

GSE is hard.

Tags: ULA 
 

Advertisement NovaTech
Advertisement SkyTale Software GmbH
Advertisement Northrop Grumman
Advertisement
Advertisement Brady Kenniston
Advertisement NextSpaceflight
Advertisement Nathan Barker Photography
1