🛰️ SATELLITE · CATALOGUE RECORD
USA 171
In orbitUSA 171 (NORAD 27937, COSPAR 2003-041A) is a US satellite in orbit, launched on 9 Sep 2003 on the ORION 5 mission. It is catalogued as ORION 5. It is operated by NRO as part of the Adv Orion programme. The spacecraft was built by UNKUS on the Adv ORION bus, with a mass of 5,000 kg. No current orbital elements are published for it, so it is not shown on the live map or in pass predictions. Catalogue record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
2003
launched
23
years on orbit
5,000
kg mass
Lifecycle
Launched9 Sep 2003 · on the ORION 5 mission
StatusOn orbit (not live-tracked)
Specifications
NORAD ID27937
COSPAR2003-041A
TypeSatellite
OperatorNRO
Country / StateUS
ManufacturerUNKUS
BusAdv ORION
Mass5,000 kg
ProgrammeAdv Orion
CategorySIG*
OrbitGEO (GEO/S)
Altitude35,780 × 35,800 km
Inclination2.0°
Frequently asked questions
What is USA 171?
USA 171 is a satellite launched in 2003 that is still in orbit. No current orbital elements are published for it, so it is not shown on the live map or in pass predictions.
Who operates and built USA 171?
USA 171 is operated by NRO and built by UNKUS (US).
Catalogue record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-10-21.