🛰️ SATELLITE · CATALOGUE RECORD
USA 310
In orbitUSA 310 (NORAD 46918, COSPAR 2020-083A) is a US satellite in orbit, launched on 13 Nov 2020 on the TOPAZ? mission. It is catalogued as [Unk NRO MEO 1]. It is operated by NRO as part of the NRO MEO A programme. The spacecraft was built by LMSSD on the Unk bus, with a mass of 7,000 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.
2020
launched
6
years on orbit
7,000
kg mass
Lifecycle
Launched13 Nov 2020 · on the TOPAZ? mission
StatusOn orbit (not live-tracked)
Specifications
NORAD ID46918
COSPAR2020-083A
TypeSatellite
OperatorNRO
Country / StateUS
ManufacturerLMSSD
BusUnk
Mass7,000 kg (5,000 kg dry)
ProgrammeNRO MEO A
CategorySIG?*
OrbitMEO (MEO)
Altitude11,074 × 11,097 km
Inclination58.5°
Frequently asked questions
What is USA 310?
USA 310 is a satellite launched in 2020 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 310?
USA 310 is operated by NRO and built by LMSSD (US).
Catalogue record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-10-21.