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GPS III satellite From Wikipedia, the free encyclopedia
USA-289, also known as GPS-III SV01 or Vespucci, is a United States navigation satellite which forms part of the Global Positioning System. It was the first GPS Block III satellite to be launched.[2]
![]() Artist's rendering of GPS-III SV01 in Space. | |
Names | Navstar 77 GPS-III SV01 Vespucci |
---|---|
Mission type | Navigation |
Operator | USAF |
COSPAR ID | 2018-109A [1] |
SATCAT no. | 43873 |
Mission duration | 15 years (planned) |
Spacecraft properties | |
Spacecraft | GPS-III SV01 |
Spacecraft type | GPS Block III |
Manufacturer | Lockheed Martin |
Launch mass | 4400 kg |
Start of mission | |
Launch date | 23 December 2018, 13:51 UTC |
Rocket | Falcon 9 B1054 |
Launch site | Cape Canaveral, SLC-40 |
Contractor | SpaceX |
Orbital parameters | |
Reference system | Geocentric orbit |
Regime | Medium Earth orbit (Semi-synchronous orbit) |
Perigee altitude | 20,118 km (12,501 mi) |
Apogee altitude | 20,196 km (12,549 mi) |
Inclination | 55.00° |
Period | 716.7 minutes |
SV01 is the first GPS Block III satellite to be launched. Ordered in 2008 and originally intended to be launched in 2014, numerous technical delays pushed launch back to 2018.[3]
The spacecraft is built on the Lockheed Martin A2100 satellite bus, and weighs in at 4,400kg (9,700lbs), making SV01 the heaviest GPS satellite ever launched.[4]
USA-289 was launched by SpaceX on 23 December 2018 at 13:51 UTC atop expendable Falcon 9 booster B1054. The launch took place from SLC-40 of the Cape Canaveral Air Force Station, and placed USA-289 directly into semi-synchronous orbit.
As of 2021, USA-289 was in a 55-degree inclination orbit with a perigee of 20,158 kilometers (12,525 miles) and an apogee of 20,222 kilometers (12,565 miles).[5] The satellite is the first GPS satellite to be able to broadcast the civilian L1C signal.[6]
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