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USA 504

In orbit

USA 504 (NORAD 63531, COSPAR 2025-074F) is a US satellite in orbit, launched on 12 Apr 2025 on the NRO Starshield A7 mission. It is catalogued as Starshield 8-06. 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 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

Launched12 Apr 2025 · on the NRO Starshield A7 mission
StatusOn orbit (not live-tracked)

Specifications

NORAD ID63531
COSPAR2025-074F
TypeSatellite
OperatorNRO
Country / StateUS
ManufacturerSPXS
BusStarshield
Mass800 kg (750 kg dry)
ProgrammeNRO Star A
CategoryIMG
OrbitLEO (LLEO/I)
Altitude285 × 314 km
Inclination69.9°

Frequently asked questions

What is USA 504?

USA 504 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 504?

USA 504 is operated by NRO and built by SPXS (US).

Launched together

Starshield 8-01NORAD 63526Starshield 8-02NORAD 63527Starshield 8-03NORAD 63528Starshield 8-04NORAD 63529Starshield 8-05NORAD 63530Starshield 8-07NORAD 63532Starshield 8-08NORAD 63533Starshield 8-09NORAD 63534
Catalogue record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-10-21.