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SpaceX 2018 closure with GPS III and the first US military security mission – NASASpaceFlight.com



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SpaceX intends to launch a wealthy 21-year campaign in search of long-term missions for the first national security in the company. The GPS III-SV01 is the starting point of the new spacecraft spacecraft EELV, Evolved Expendable Launch Vehicle, the US Air Force contract and the new generation of GPS III satellite generations.

Launch window on Tuesday, December 18, at 09:11 – 09:35 EST (1411 – 1435 UTC). It will create a new missile in the Falcon 9 Block 5 rocket flight in its available configuration, since the complete Falcon 9 performance is necessary to make the GPS III satellite satellite.

Award of the GPS III contract award (s):

The first award of the GPS III satellite contract promotes traces of the current Global Positioning System (GPS) on July 17, 1995.

While the original GPS targets were fulfilled during that day, the significant advances in new technologies and the demands of the newly formed system users made it possible to modernize the GPS.

Thanks to this initiative, the White House and Bill Clinton President of the Administration began in 1998, which started the launch of the GPS III program together with the official 2000 United States Congress authorization.

Under the presidency of George W. Bush, the GPS III system, satellite technology and the overall design of space bridges were investigated by awarding Lockheed Martin operations, with Orbital ATK and Northrop Grumman Astro Aerospace satellites.

Under the construction contract, Lockheed Martin was the main manufacturer and provided the satellite A2100 bus structure. In addition, Orbital ATK, nowadays Northrop Grumman Innovation Systems, propelled and pressures and tanks, and Northrop Grumman Astro Aerospace extended eight JIB antennas.

President Barack Obama says GPS The Next Generation GPS Operating System Contract Raytheon was on February 25, 2010 to build a GPS III satellite control system.

The first satellite GPS III began in 2014 and Delta La Mente IV. He was taken aback by the United Launch Alliance (ULA) M + rocket in the orbit, but with endless technology and boosting shipments during the first spring. 2018.

The first launch of the GPS III mission was awarded to the ULA in January 2012.

Global Positioning System managerial flagship. (US Air Force)

However, the first contract was awarded to the ULA, SpaceX and Air Force to obtain a file for 2015, SpaceX has signed an agreement to abolish its Airspace in order to compel the Air Force to open national security start-up contracts.

He received a SpaceX lawsuit, separated from GPS III satellite channels, to the ULA government for the ULA, 36 block ULA block excluding out of 2013 external sources.

In 2014, SpaceX launched the Air Force instead of attempting to force the competition to market, instead of focusing on block purchase contracts, SpaceX was more expensive than just one contract.

That year later, when the lawsuit dropped, the Air Force continued its promise and demanded a second fixed price publicly, to launch the second satellite GPS III satellite.

The competitive offer was part of the Evolved Expendable Launch Vehicle (EELV) program of the Air Force, part of the "Expendable" portion, when full cost of rockets was filled. Falcon 9 is part of the EELV program, although it can be retrieved and reused.

With the competitive nature of the contract, SpaceX made an offer with Falcon 9, and the ULA did not refuse to offer, for the Air Force to select the winner and the cost of launching the SpaceX lower ground for concerns.

On April 26, 2016, the Air Force officially announced the launch of the second Space III GPS III satellite.

Since then, the third, fourth, fifth and sixth GPS satellites have been competitive with competitive offerings, which SpaceX has won with the Falcon 9 rocket.

Modify and launch the order of the GPS III satellite flight:

At that time, SpaceX gained the second GPS III satellite of the series, was the second GPS III satellite, following the first ULA Delta IV M + rocket satellites.

However, one year later, for the award of the contract, the Air Force announced a swap exchange between the Spring 2016 missions, taking the ULA Delta IV M + GPS III SV01 (first spacecraft) and placing it on Falcon 9 GPS III SV-02 (the second of the spacecraft and the offer actually made by SpaceX) from Falcon 9 and the ULA Delta IV M +.

The interchange of rockets created by the first two satellites did not prevent fixed-price contracts from both companies, but SpaceX was crucial – and another one – first of all: SpaceX must first start. The new generation of GPS satellites, not the second.

Because of the order of payment order, the SpaceX mission – when launching the first GPS III satellite – is a second hired flight; For this reason, Air Force and SpaceX mission review are referred to as GPS III-2, while the first GPS III satellite (SV01) was built.

Ground tests and GPS III-SV01 exams were successfully completed in 2017, and the improvements made in the SpaceX startup led to the start of the mission in December 2018.

SpaceX and Air Force have been highly successful in integrating the GPS III SV-01 integration charging adapter and embed the Falcon 9 charging capsule.

As with previous SpaceX missions, Falcon 9's static fire was successfully completed – a quick look-up review – from December 14 at midnight.

Unlike most SpaceX missions, the last pre-enrollment campaign was also a rehearsal for large-scale mission trips, where launch and loading control teams worked through a full flight flight to allow starting-up games. .

GPS III-SV01 Falcon 9 is embedded within the square charge at the beginning of December 2018. (Credit: Lockheed Martin)

With these hurdles cleared, the mission came into its Launch Readiness Review (LRR), and SpaceX and Air Force were held jointly on Monday, December 17. LRR authorized the startup operations, and Falcon 9 launched its launch pad at SLC-40 at Cabo Cañaveral Air Force Station, Florida, Monday afternoon.

If all plans are planned, the Falcon 9 rocket launches a seaman off Cape Canaveral on a 24-hour start, at 09:11 AM – 09:35 AM EST (1411-1435 UTC) on Tuesday, December 18, 2018. .

A necessary option on Wednesday, December 19.

Falcon 9 will cut down and cross the Northeast to Cape to make the GPS III-SV01 a 55th lower orbit.

For this mission, Falcon 9 has to use the first field of action B1054, block 5 of the new block, the first phase, according to the fixed price contract of the Air Force.

The Falcon 9 performance boost of each 3,880 kilogram (8,533 lb) requires the GPS III satellite to be moved to its Earth Orbit, it will fly in a configurable B1054 configuration, because landing legs and slabs are not. After separating it from the second phase into the Atlantic Ocean.

GPS III-SV01 (GPS III-III contracted starting point), mission patch "-2" (credit: SpaceX)

The timeline of the Falcon 9 III-SV01 GPS function is as follows:

Time Hr / Min / Sec Flight event
-00: 00: 03 Engine ignition command
00:00:00 Falcon 9 liftoff
00:01:04 Max Q (mechanical mechanic torque in Falcon 9)
00:02:44 Main stage of the motor stage 1
00:02:48 1. stage / 2nd stage
00:02:50 2nd stage engine ignition
00:03:22 Fairing deployment
00:08:16 2. Stage motors cut 1 (SECO 1) -[Orbit is LEO x 4,000 km]
01:08:51 2nd stage engine ignition
1:09:37 2. Stage motors cut 2 (SECO 2) – [Orbit is 4,000 km x 20,000 km]
01:56:17 GPS III-SV01 offset
06:30:00 Recovery of the destructive step 2 after burning the orbit

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