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🛰️ SATELLITE · HISTORICAL RECORD

Janus-1

Re-entered 29 Jun 2023

Janus-1 (NORAD 55564, COSPAR 2023-019C) was a US satellite that re-entered Earth's atmosphere on 29 Jun 2023, launched on 10 Feb 2023 on the EOS-07 mission. It was operated by ANTAR as part of the Antaris programme. The spacecraft was built by ANTAR on the Cubesat 6U? bus, with a mass of 10 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.

2023
launched
2023
re-entered
0
years on orbit
10
kg mass

Lifecycle

Launched10 Feb 2023 · on the EOS-07 mission
Operational1 Jun 2023 · entered service
Retired1 Jun 2023 · end of operational service
Re-entered29 Jun 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID55564
COSPAR2023-019C
TypeSatellite
OperatorANTAR
Country / StateUS
ManufacturerANTAR
BusCubesat 6U?
Mass10 kg
ProgrammeAntaris
CategoryTECH
OrbitLEO (LLEO/I)
Altitude357 × 442 km
Inclination37.2°

Frequently asked questions

What happened to Janus-1?

Janus-1 re-entered Earth's atmosphere on 29 Jun 2023, ending a mission that began with its launch in 2023. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Janus-1 re-enter the atmosphere?

Janus-1 re-entered on 29 Jun 2023, according to Orbital Radar's historical catalogue records.

Who operated and built Janus-1?

Janus-1 was operated by ANTAR and built by ANTAR (US).

Launched together

AzaadiSAT-2Re-entered 2023
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.