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🛰️ SATELLITE · HISTORICAL RECORD

Umbra-05

Re-entered 19 Nov 2025

Umbra-05 (NORAD 55036, COSPAR 2023-001AD) was a US satellite that re-entered Earth's atmosphere on 19 Nov 2025, launched on 3 Jan 2023 on the Transporter-6 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.

2023
launched
2025
re-entered
2
years on orbit
65
kg mass

Lifecycle

Launched3 Jan 2023 · on the Transporter-6 mission
Operational1 Oct 2025 · entered service
Retired1 Oct 2025 · end of operational service
Re-entered19 Nov 2025 · atmospheric re-entry — object destroyed

Specifications

NORAD ID55036
COSPAR2023-001AD
TypeSatellite
OperatorUMBRA
Country / StateUS
ManufacturerUMBRA
BusUmbra
Mass65 kg (60 kg dry)
ProgrammeUmbra
CategoryIMG-R
OrbitLEO (LLEO/S)
Altitude519 × 537 km
Inclination97.5°

Frequently asked questions

What happened to Umbra-05?

Umbra-05 re-entered Earth's atmosphere on 19 Nov 2025, 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 Umbra-05 re-enter the atmosphere?

Umbra-05 re-entered on 19 Nov 2025, according to Orbital Radar's historical catalogue records.

Who operated and built Umbra-05?

Umbra-05 was operated by UMBRA and built by UMBRA (US).

Launched together

STAR VIBENORAD 55009Dove 24b1Re-entered 2025Lynk Tower 4NORAD 55034Dove 242eRe-entered 2024Lemur-2 FM164 (L3C)Re-entered 2024Lemur-2 FM167Re-entered 2024Dove 2415Re-entered 2024Dove 24c9Re-entered 2025
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.