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USA-154, also known as GPS IIR-6 and GPS SVN-41, is an American navigation satellite which forms part of the Global Positioning System. It was the sixth Block IIR GPS satellite to be launched, out of thirteen in the original configuration, and twenty one overall. It was built by Lockheed Martin, using the AS-4000 satellite bus.[2]

USA-154

A Block IIR GPS satellite
Mission type	Navigation
Operator	US Air Force
COSPAR ID	2000-071A[1]
SATCAT no.	26605[1]
Mission duration	10 years (planned)[2]
Spacecraft properties
Spacecraft type	GPS Block IIR[2]
Bus	AS-4000[2]
Manufacturer	Lockheed Martin[2]
Launch mass	2,032 kilograms (4,480 lb)[2]
Start of mission
Launch date	10 November 2000, 17:14:02 (2000-11-10UTC17:14:02Z) UTC
Rocket	Delta II 7925-9.5, D281[3]
Launch site	Cape Canaveral SLC-17A[3]
End of mission
Deactivated	09 July 2020 (2020-07-10)
Orbital parameters
Reference system	Geocentric
Regime	Medium Earth (Semi-synchronous)
Perigee altitude	20,177 kilometres (12,537 mi)[4]
Apogee altitude	20,498 kilometres (12,737 mi)[4]
Inclination	55 degrees[4]
Period	724.28 minutes[4]

USA-154 was launched at 17:14:02 UTC on 10 November 2000, atop a Delta II carrier rocket, flight number D281, flying in the 7925-9.5 configuration.[3] The launch took place from Space Launch Complex 17A at the Cape Canaveral Air Force Station,[5] and placed USA-154 into a transfer orbit. The satellite raised itself into medium Earth orbit using a Star-37FM apogee motor.[2]

By 13 November 2000, USA-154 was in an orbit with a perigee of 20,177 kilometres (12,537 mi), an apogee of 20,498 kilometres (12,737 mi), a period of 724.28 minutes, and 55 degrees of inclination to the equator.[4] It was used to broadcast the PRN 14 signal, and operated in slot 5 of plane F of the GPS constellation.[6] The satellite had a mass of 2,032 kilograms (4,480 lb), and a design life of 10 years.[2] As of July 2020 it is no longer in service.

References

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