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🛰️ SATELLITE · HISTORICAL RECORD

SLIM

Re-entered 26 Sep 2023

SLIM (NORAD 57803, COSPAR 2023-137D) was a J satellite that re-entered Earth's atmosphere on 26 Sep 2023, launched on 6 Sep 2023 on the XRISM/SLIM mission. It was operated by JAXA / ISASJ as part of the JAXA Plan programme. The spacecraft was built by JAXA on the SLIM bus, with a mass of 700 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
700
kg mass

Lifecycle

Launched6 Sep 2023 · on the XRISM/SLIM mission
Operational19 Jan 2024 · entered service
Retired29 Apr 2024 · end of operational service
Re-entered26 Sep 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID57803
COSPAR2023-137D
TypeSatellite
OperatorJAXA / ISASJ
Country / StateJ
ManufacturerJAXA
BusSLIM
Mass700 kg (200 kg dry)
ProgrammeJAXA Plan
CategoryPLAN
Orbit (VHEO)
Altitude334 × 98,657 km
Inclination30.3°

Frequently asked questions

What happened to SLIM?

SLIM re-entered Earth's atmosphere on 26 Sep 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 SLIM re-enter the atmosphere?

SLIM re-entered on 26 Sep 2023, according to Orbital Radar's historical catalogue records.

How long was SLIM operational?

SLIM was operational for roughly 3 months, from 19 Jan 2024 to 29 Apr 2024.

Who operated and built SLIM?

SLIM was operated by JAXA / ISASJ and built by JAXA (J).

Launched together

XRISMNORAD 57800
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.