HomeLibraryRe-entered SatellitesPrometheus 2.2
🛰️ SATELLITE · HISTORICAL RECORD

Prometheus 2.2

Re-entered 16 Sep 2017

Prometheus 2.2 (NORAD 42923, COSPAR 2017-050C) was a US satellite that re-entered Earth's atmosphere on 16 Sep 2017, launched on 26 Aug 2017 on the ORS-5 mission. It was operated by SOCOM as part of the Prometheus programme. The spacecraft was built by LANL on the Cubesat 1.5U bus, with a mass of 2 kg. Like most satellites in low orbits, it was gradually slowed by atmospheric drag until re-entry. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.

2017
launched
2017
re-entered
0
years on orbit
2
kg mass

Lifecycle

Launched26 Aug 2017 · on the ORS-5 mission
Operational1 Sep 2017 · entered service
Retired1 Sep 2017 · end of operational service
Re-entered16 Sep 2017 · atmospheric re-entry — object destroyed

Specifications

NORAD ID42923
COSPAR2017-050C
TypeSatellite
OperatorSOCOM
Country / StateUS
ManufacturerLANL
BusCubesat 1.5U
Mass2 kg
ProgrammePrometheus
CategoryCOM
OrbitLEO (LLEO/E)
Altitude388 × 602 km
Inclination24.5°

Frequently asked questions

What happened to Prometheus 2.2?

Prometheus 2.2 re-entered Earth's atmosphere on 16 Sep 2017, ending a mission that began with its launch in 2017. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Prometheus 2.2 re-enter the atmosphere?

Prometheus 2.2 re-entered on 16 Sep 2017, according to Orbital Radar's historical catalogue records.

Who operated and built Prometheus 2.2?

Prometheus 2.2 was operated by SOCOM and built by LANL (US).

Launched together

ORS-5NORAD 42921DARPA High Freq. ReceiverRe-entered 2022Prometheus 2.4Re-entered 2017
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.