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🛰️ SATELLITE · HISTORICAL RECORD

Umbra-SAR 2001

Re-entered 30 Apr 2024

Umbra-SAR 2001 (NORAD 48906, COSPAR 2021-059AD) was a US satellite that re-entered Earth's atmosphere on 30 Apr 2024, launched on 30 Jun 2021 on the Transporter-2 mission. It was operated by UMBRA as part of the Umbra programme. The spacecraft was built by UMBRA on the Umbra bus, with a mass of 65 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.

2021
launched
2024
re-entered
3
years on orbit
65
kg mass

Lifecycle

Launched30 Jun 2021 · on the Transporter-2 mission
Operational1 Dec 2023 · entered service
Retired1 Dec 2023 · end of operational service
Re-entered30 Apr 2024 · atmospheric re-entry — object destroyed

Specifications

NORAD ID48906
COSPAR2021-059AD
TypeSatellite
OperatorUMBRA
Country / StateUS
ManufacturerUMBRA
BusUmbra
Mass65 kg (60 kg dry)
ProgrammeUmbra
CategoryIMG-R
OrbitLEO (LLEO/S)
Altitude522 × 535 km
Inclination97.5°

Frequently asked questions

What happened to Umbra-SAR 2001?

Umbra-SAR 2001 re-entered Earth's atmosphere on 30 Apr 2024, ending a mission that began with its launch in 2021. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Umbra-SAR 2001 re-enter the atmosphere?

Umbra-SAR 2001 re-entered on 30 Apr 2024, according to Orbital Radar's historical catalogue records.

Who operated and built Umbra-SAR 2001?

Umbra-SAR 2001 was operated by UMBRA and built by UMBRA (US).

Launched together

Starlink TSP2-01Re-entered 2024LINCS BRe-entered 2025SpaceBEE 111Re-entered 2024Nusat-19Re-entered 2024Mandrake 2ANORAD 48907Mandrake 2BNORAD 48908PACE-1NORAD 48909GNOMES-2Re-entered 2024
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.