USA 346

In orbit

USA 346 (NORAD 57836, COSPAR 2023-140A) is a US satellite in orbit, launched on 10 Sep 2023 on the SILENT BARKER mission. It is catalogued as SILENT BARKER 1. It is operated by NRO / USSF SSC as part of the SILENT BARKER programme. The spacecraft was built by UNKUS on the SILENTBARKER bus, with a mass of 1,200 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.

2023

launched

years on orbit

1,200

kg mass

Lifecycle

Launched10 Sep 2023 · on the SILENT BARKER mission

StatusOn orbit (not live-tracked)

Specifications

NORAD ID57836

COSPAR2023-140A

TypeSatellite

OperatorNRO / USSF SSC

Country / StateUS

ManufacturerUNKUS

BusSILENTBARKER

Mass1,200 kg (1,000 kg dry)

ProgrammeSILENT BARKER

CategoryEW*

OrbitGEO (GEO/I)

Altitude35,784 × 35,789 km

Inclination12.3°

Frequently asked questions

What is USA 346?

USA 346 is a satellite launched in 2023 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 346?

USA 346 is operated by NRO / USSF SSC and built by UNKUS (US).

Launched together

SILENT BARKER 2NORAD 57837 SILENT BARKER 3NORAD 57838

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: SILENT BARKER → What is space debris? →