Falcon 9: GPS-III SV-01 (DoD mission)


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Air Force launch commander ‘not confident’ GPS 3 will lift off as scheduled

 

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The commander of the 45th Space Wing that oversees launch operations at Cape Canaveral said calling off the GPS 3 mission Dec. 18 was the right thing to do.

 

WASHINGTON — SpaceX on Tuesday scrubbed the Falcon 9 launch of the Air Force’s first GPS 3 satellite. Another attempt is planned for Wednesday at Cape Canaveral Air Force Station, Florida.

 

The commander of the 45th Space Wing that oversees launch operations at Cape Canaveral said calling off the GPS 3 mission was the right thing to do. “We saw some sensors today that gave us a little bit of an alarm so we decided to hold the launch at that time,” Air Force Brig. Gen. Douglas Schiess told SpaceNews during a conference call Tuesday. Also on the call were Air Force Secretary Heather Wilson and Lt. Gen. John Thompson, the commander of the Air Force Space and Missile Systems Center.

 

Wilson was at Cape Canaveral to watch the launch with Vice President Mike Pence.

 

The 45th Space Wing is responsible to ensure public safety during every launch from Cape Canaveral or Kennedy Space Center.

 

“The team is always making sure we have mission assurance and safety as our main priorities,” Schiess said. “We did that today.”

 

The weather is not a concern at this point, he said. “We’re working through some issues” that could delay the launch beyond tomorrow, Schiess said. “We’re are now working with General Thompson’s folks and SpaceX to see whether we can launch tomorrow,” he said. “When we get ready, and the rocket’s good, we’re looking forward to a great launch of the first EELV launch for SpaceX.” The Evolved Expendable Launch Vehicle is the Air Force program that procures launch services.

 

On whether a Wednesday launch appears likely, Schiess expressed some doubts. “I can’t say we’re confident on that right now. … We’re holding tomorrow’s schedule. But we’re not confident at this point.”

 

Wilson agreed with the wing commander’s decision to hold off.

more at the link...

https://spacenews.com/air-force-launch-commander-not-confident-gps-3-will-lift-off-as-scheduled/

 

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This article is intentionally foggy...but gives us some info...

 

If this was the launcher...SpaceX calls the shots.

 

Range and payload are the domain of others...in the family of sensors...aka SpaceX scrub tweet.

 

This scrub was called by the military...hopefully we find out more later, but I doubt that it's the launch vehicle.

 

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This launch became strange from the moment of the "family of sensors" original tweet.

 

22 hours ago, Draggendrop said:

 

Around T-10 minutes...payload on internal power...then a hold placed...was it a scrub...

 

The "hold" was placed before the countdown commenced, which would be a "stand down".

 

A couple rumors about an issue being known a few hours prior to launch where even the fairing support ship returned to port many hours prior to designated launch time.

 

Were they waiting for a spurious reading to stabilize. With most issues in the past, we would know the general area/part the following day.

 

This one has me curious...if stage 1, what exactly was it to know several hours ahead of time...before fueling and engine gimbal checks.

 

A lot of telemetry is collected...but the collection can be narrowed down several hours prior to a launch.

 

 

She passed static fire quick and indepth review....but issue appears to have not been stabilized/corrected prior to launch countdown.

 

Hopefully we find out it was minor  and she launches in a few days...today is 6 days from Xmas...range associated labor and SpaceX ground/pad crew could use a holiday.

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37 minutes ago, DocM said:

Not just "weather,"  tornado warnings.

Soooo....bad weather???  Anyway...new launch date/time.

 

 

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1 hour ago, DocM said:

Not just "weather,"  tornado warnings.

Probably a dumb question, but when they scrub the launch, they don't typically put the falcon back in the barn do they?  They leave it up for the next day so they don't have to re-attach everything again?

 

Can see it go both ways.  May need it inside to look at those sensors.

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It's a situational thing. 

 

One time they had a crack in the second stage nozzle, but instead of taking it back into the hanger SpaceX sent an engineer (Marty) up on a cherry picker with tin snips and masking tape. He crawled into the interstage, then trimmed a few inches off the end of the nozzle.

 

0855 Eastern, 1355 UT

 

 

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