USA 340

In orbit

USA 340 (NORAD 55138, COSPAR 2022-144E) is a US satellite in orbit, launched on 1 Nov 2022 on the LDPE-2 mission. It is catalogued as TETRA 1. It is operated by USSF SSC / Millenium ES as part of the ESPASAT programme. The spacecraft was built by MILLES on the Altair 27U bus, with a mass of 100 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.

2022

launched

years on orbit

100

kg mass

Lifecycle

Launched1 Nov 2022 · on the LDPE-2 mission

StatusOn orbit (not live-tracked)

Specifications

NORAD ID55138

COSPAR2022-144E

TypeSatellite

OperatorUSSF SSC / Millenium ES

Country / StateUS

ManufacturerMILLES

BusAltair 27U

Mass100 kg

ProgrammeESPASAT

CategoryTECH

OrbitGEO (GEO/D)

Altitude35,916 × 35,946 km

Inclination2.9°

Frequently asked questions

What is USA 340?

USA 340 is a satellite launched in 2022 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 340?

USA 340 is operated by USSF SSC / Millenium ES and built by MILLES (US).

Launched together

LDPE-2NORAD 54219 AlpineNORAD 55139 LINUS-A 1NORAD 55246 LINUS-A 2NORAD 55247 [USSF GEO Patrol 01]NORAD 56307 [USSF GEO Patrol 02]NORAD 60741 [USSF GEO Patrol 03]NORAD 64289

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: LDPE-2 → What is space debris? →