🛰️ SATELLITE · CATALOGUE RECORD
USA 400
In orbitUSA 400 (NORAD 61021, COSPAR 2024-160A) is a US satellite in orbit, launched on 6 Sep 2024 on the NRO Starshield A3 mission. It is catalogued as Starshield 3-01. It is operated by NRO as part of the NRO Star A programme. The spacecraft was built by SPXS on the Starshield bus, with a mass of 750 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.
2024
launched
2
years on orbit
750
kg mass
Lifecycle
Launched6 Sep 2024 · on the NRO Starshield A3 mission
StatusOn orbit (not live-tracked)
Specifications
NORAD ID61021
COSPAR2024-160A
TypeSatellite
OperatorNRO
Country / StateUS
ManufacturerSPXS
BusStarshield
Mass750 kg (700 kg dry)
ProgrammeNRO Star A
CategoryIMG
OrbitLEO (LLEO/I)
Altitude299 × 307 km
Inclination70.0°
Frequently asked questions
What is USA 400?
USA 400 is a satellite launched in 2024 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 400?
USA 400 is operated by NRO and built by SPXS (US).
Launched together
Starshield 3-02Starshield 3-03Starshield 3-04Starshield 3-05Starshield 3-06Starshield 3-07Starshield 3-08Starshield 3-09
Catalogue record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-10-21.