🛰️ SATELLITE · CATALOGUE RECORD
USA 549
In orbitUSA 549 (NORAD 65075, COSPAR 2025-165V) is a US satellite in orbit, launched on 31 Jul 2025 on the Starlink Group 13-4 mission. It is catalogued as Starshield B4-01. It is operated by NRO as part of the NRO Star B programme. The spacecraft was built by SPXS on the Starshield bus, with a mass of 800 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.
2025
launched
1
year on orbit
800
kg mass
Lifecycle
Launched31 Jul 2025 · on the Starlink Group 13-4 mission
StatusOn orbit (not live-tracked)
Specifications
NORAD ID65075
COSPAR2025-165V
TypeSatellite
OperatorNRO
Country / StateUS
ManufacturerSPXS
BusStarshield
Mass800 kg (750 kg dry)
ProgrammeNRO Star B
CategoryIMG?
OrbitLEO (LLEO/S)
Altitude312 × 326 km
Inclination97.6°
Frequently asked questions
What is USA 549?
USA 549 is a satellite launched in 2025 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 549?
USA 549 is operated by NRO and built by SPXS (US).
Launched together
Starlink Group 13-4-01Starlink Group 13-4-02Starlink Group 13-4-03Starlink Group 13-4-04Starlink Group 13-4-05Starlink Group 13-4-06Starlink Group 13-4-07Starlink Group 13-4-08
Catalogue record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-10-21.