USA 351

In orbit

USA 351 (NORAD 59275, COSPAR 2024-050X) is a US satellite in orbit, launched on 19 Mar 2024 on the Starlink Group 7-16 mission. It is catalogued as Starshield B1-02. It is operated by NRO / SpaceX as part of the NRO Star B programme. The spacecraft was built by SPXS on the Starshield bus, with a mass of 730 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

years on orbit

730

kg mass

Lifecycle

Launched19 Mar 2024 · on the Starlink Group 7-16 mission

StatusOn orbit (not live-tracked)

Specifications

NORAD ID59275

COSPAR2024-050X

TypeSatellite

OperatorNRO / SpaceX

Country / StateUS

ManufacturerSPXS

BusStarshield

Mass730 kg (700 kg dry)

ProgrammeNRO Star B

CategoryIMG?*

OrbitLEO (LLEO/I)

Altitude305 × 314 km

Inclination53.2°

Frequently asked questions

What is USA 351?

USA 351 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 351?

USA 351 is operated by NRO / SpaceX and built by SPXS (US).

Launched together

Starlink Group 7-16-01NORAD 59254 Starlink Group 7-16-02NORAD 59255 Starlink Group 7-16-03NORAD 59256 Starlink Group 7-16-04Re-entered 2026 Starlink Group 7-16-05NORAD 59258 Starlink Group 7-16-06NORAD 59259 Starlink Group 7-16-07Re-entered 2025 Starlink Group 7-16-08NORAD 59261

Catalogue record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-10-21.

Browse the live satellite directory → The Orbital Register → Launch record: Starlink Group 7-16 → What is space debris? →