Author Topic: LIVE: Atlas V 401 - GPS IIF-10 - Canaveral SLC-41, July 15, 2015 (15:36 UTC)  (Read 41542 times)

Online catdlr

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Atlas V GPS IIF-10 Encapsulation

Published on Jul 10, 2015
The Air Force's GPS IIF-10 satellite is encapsulated inside an Atlas V 4-meter payload fairing.

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Offline jacqmans

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Launch Mission Execution Forecast
Vehicle: Atlas V AV-055 GPS IIF-10
Issued: 13 July 2015/1200Z (0800 EDT)
Valid: During Launch Window

Launch Weather Team: (321) 853-8484

Synoptic Discussion: An upper level trough and associated surface trough in the Southeast states has suppressed the high pressure axis to the south. Low level winds are from the west with light northerly steering flow today becoming northwesterly on Tuesday and on launch day. In this pattern, the morning hours are generally favorable with afternoon thunderstorms favoring the East coast. However, the persistent surface trough over North Florida and high moisture over Central Florida will aid in earlier develop of morning showers becoming thunderstorms during the afternoon. This pattern looks to persist through the launch attempts. For MLP Roll on Tuesday, low level west-southwest winds are a bit elevated with gusts in the mid to upper teens (230 feet). This will retard the seabreeze development and higher thunderstorm threat until early to mid-afternoon. The seabreeze, if it develops, will remain pinned near the coast serving as a focus for showers and thunderstorms. Likewise, interior thunderstorms will drift toward the East Coast by mid-afternoon. On launch day, similar conditions are expected with an isolated shower threat during the count. With late morning heating, high moisture, and instability, the thunderstorm threat begins to increase late morning and through the afternoon hours, again favoring the East Coast. Concerning solar weather, there is a low threat of elevated proton flux through the launch opportunities. The primary concern for launch is Cumulus Clouds. In the event of a 24-hour delay, similar conditions are expected. The primary concern for a 24-hour delay is Cumulus Clouds.
Jacques :-)

Offline jacqmans

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Jacques :-)

Offline jacqmans

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Jacques :-)

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Launch Mission Execution Forecast
Vehicle: Atlas V AV-055 GPS IIF-10

Issued: 14 July 2015/1200Z (0800 EDT)

Valid: 15 July / 1536Z – 1554Z

Launch Weather Team: (321) 853-8484

Synoptic Discussion: An upper level trough and associated surface trough in the Southeast states has suppressed the high pressure axis to the south resulting in westerly winds in the low and mid-levels of the atmosphere. In this pattern, the morning hours are generally favorable with afternoon thunderstorms favoring the East Coast. The aforementioned surface trough encroaches into North Florida on launch day with high moisture over Central Florida aiding in development of morning showers becoming thunderstorms during the afternoon. This pattern persists through the launch attempts. For MLP Roll today, low level west-southwest winds with gusts in mid-teens is expected (230 feet). This will retard the seabreeze development and higher thunderstorm threat until early to mid-afternoon. The seabreeze, if it develops, will remain pinned near the coast serving as a focus for showers and thunderstorms. Likewise, interior thunderstorms will drift toward the East Coast by mid-afternoon. On launch day, similar conditions are expected with an isolated shower threat during the count. With late morning heating, high moisture and instability, the thunderstorm threat begins to increase late morning and through the afternoon hours, again favoring the East Coast. Concerning solar weather, there is a low threat of elevated proton flux through the launch opportunities. The primary concern for launch is Cumulus Clouds. In the event of a 24-hour delay, similar conditions are expected. The primary concern for a 24-hour delay is Cumulus Clouds.
Jacques :-)

Offline Artyom.

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Quote
ULA ‏@ulalaunch
The AtlasV with GPSIIF10 rolling to the launch pad at SLC-41.

Offline BabaORileyUSA

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It looks like this bird is going into Plane C - does anyone know which Slot it is going to, or which satellite this is supposed to replace?

Offline macpacheco

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It looks like this bird is going into Plane C - does anyone know which Slot it is going to, or which satellite this is supposed to replace?
PRN 10/SVN40/E6 is going offline Jul, 16th 1500 Zulu (GPS UUFN NANU). This bird doesn't have a replacement in place.
So it would make sense that this launch would directly replace it.
Take a look at:
http://www.nstb.tc.faa.gov/incoming/waas_sats.png
See how distant PRN 10 is from PRN 5. The pairing should be maintained by replacing PRN 10/SVN40 with IIF-10.

Couldn't find a statement to which orbit IIF-10 is going to confirm / disprove that theory.
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Offline vapour_nudge

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According to SFN:

GPS 2F-10 will take Plane C, Slot 3 of the network in a shuffling plan that ultimately enhances the network. It should be checked out and operational in a month.

The satellite currently in that spot — GPS 2R-11, launched aboard Delta 303 in March 2004 — will be moved into a backup role, having outlived its 7.5-year design life. It was the 50th GPS satellite.

“(GPS 2R-11) will then be repositioned within the C-plane to maximize coverage and resiliency. (Plane-Slot) C-3 was chosen for 2F-10 to expand the coverage area of the new modernized signals (L2C and L5) that the GPS 2F fleet can provide,” the Air Force says.

To make numerical room for the new addition to the constellation, the GPS 2A-26 launched aboard Delta 237 in July 1996 will be decommissioned following the GPS 2F-10 launch.

http://spaceflightnow.com/2015/07/12/preview-new-gps-satellite-heads-into-space-this-week/
« Last Edit: 07/14/2015 04:05 pm by vapour_nudge »

Offline macpacheco

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According to SFN:

GPS 2F-10 will take Plane C, Slot 3 of the network in a shuffling plan that ultimately enhances the network. It should be checked out and operational in a month.

The satellite currently in that spot — GPS 2R-11, launched aboard Delta 303 in March 2004 — will be moved into a backup role, having outlived its 7.5-year design life. It was the 50th GPS satellite.

“(GPS 2R-11) will then be repositioned within the C-plane to maximize coverage and resiliency. (Plane-Slot) C-3 was chosen for 2F-10 to expand the coverage area of the new modernized signals (L2C and L5) that the GPS 2F fleet can provide,” the Air Force says.

To make numerical room for the new addition to the constellation, the GPS 2A-26 launched aboard Delta 237 in July 1996 will be decommissioned following the GPS 2F-10 launch.

http://spaceflightnow.com/2015/07/12/preview-new-gps-satellite-heads-into-space-this-week/
Got it. PRN20/SVN51 is west of PRN5. I *think* its moving eastward and will eventually replace PRN10 current station.
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Offline Chris Bergin

Moved for live coverage.
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Atlas V GPS IIF-10 Encapsulated Payload Mate

Published on Jul 14, 2015
The Air Force's GPS IIF-10 satellite, encapsulated inside a 4-meter payload fairing, is mated to an Atlas V rocket at the Vertical Integration Facility or VIF.

« Last Edit: 07/14/2015 10:50 pm by catdlr »
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Offline Colodie

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According to SFN:

GPS 2F-10 will take Plane C, Slot 3 of the network in a shuffling plan that ultimately enhances the network. It should be checked out and operational in a month.

The satellite currently in that spot — GPS 2R-11, launched aboard Delta 303 in March 2004 — will be moved into a backup role, having outlived its 7.5-year design life. It was the 50th GPS satellite.

“(GPS 2R-11) will then be repositioned within the C-plane to maximize coverage and resiliency. (Plane-Slot) C-3 was chosen for 2F-10 to expand the coverage area of the new modernized signals (L2C and L5) that the GPS 2F fleet can provide,” the Air Force says.

To make numerical room for the new addition to the constellation, the GPS 2A-26 launched aboard Delta 237 in July 1996 will be decommissioned following the GPS 2F-10 launch.

http://spaceflightnow.com/2015/07/12/preview-new-gps-satellite-heads-into-space-this-week/
Got it. PRN20/SVN51 is west of PRN5. I *think* its moving eastward and will eventually replace PRN10 current station.

Keep in mind that 'replacement' means a few different things.  SVN 72 is 'replacing' SVN 59 (IIR-11).  However, SVN 59 is still going to be up there, still broadcasting.  It's just going to move around a bit.

SVN 72 is also 'replacing' SVN 40.  Because of the way the system is built, only 31 satellites can be broadcasting a healthy Nav signal.  For SVN 72 to go active, something has to go off.  In this case, SVN 40.

You could also say SVN 72 is replacing SVN 38, since SVN 72 will take PRN 8 (which was used by SVN 38).

Finally, no newly launched satellite would replace a vehicle in the 5 or 6 slot.*  [Replace in this case meaning, take the physical place in orbit] Slots 1 through 4 are considered 'primary' and 'more important', while 5 and 6 are basically auxiliaries.

*I know there's the expanded 24 constellation, so B5, D5, E5 are are different, but the concept still applies.

Offline Chris Bergin

ULA:

Everything is progressing toward the GPS IIF-10 launch for the United States Air Force. The mission is set to lift off on a ULA Atlas V rocket on Wednesday, July 15 from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida. Today's L-1 forecast continues to show a 70 percent chance of favorable weather conditions for launch. The launch window is 11:36 – 11:54 a.m. EDT.

Here are a few photos and a caption from vehicle roll this morning: http://www.ulalaunch.com/file-library.aspx


Cape Canaveral Air Force Station, Fla. (July 14,2015) -  A United Launch Alliance Atlas V rocket will launch the Air Force's GPS IIF-10 mission from Space Launch Complex-41 at Cape Canaveral Air Force Station, FL.

Photo credit: ULA
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Offline Chris Bergin

I like this angle!
« Last Edit: 07/15/2015 01:18 am by Chris Bergin »
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Offline jacqmans

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Higher Resolution
Jacques :-)

Offline Chris Bergin

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Offline Kim Keller

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The team is ready to begin cryo tanking.

Offline Kim Keller

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Centaur LO2 at flight level. No issues being worked. Wx is go.

Offline Kim Keller

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Centaur LH2 tanking commencing.

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