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🛰️ SATELLITE · HISTORICAL RECORD

OPTIMAL-1

Re-entered 22 Aug 2023

OPTIMAL-1 (NORAD 55183, COSPAR 1998-067VA) was a J satellite that re-entered Earth's atmosphere on 22 Aug 2023, launched on 26 Nov 2022 on the 77KM No. 17501 mission. It was operated by ARKE / FUKUIU as part of the ArkEdge programme. The spacecraft was built by ARKE on the Cubesat 3U bus, with a mass of 4 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.

2022
launched
2023
re-entered
1
year on orbit
4
kg mass

Lifecycle

Launched26 Nov 2022 · on the 77KM No. 17501 mission
Operational1 Jul 2023 · entered service
Retired1 Jul 2023 · end of operational service
Re-entered22 Aug 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID55183
COSPAR1998-067VA
TypeSatellite
OperatorARKE / FUKUIU
Country / StateJ
ManufacturerARKE
BusCubesat 3U
Mass4 kg
ProgrammeArkEdge
CategoryTECH
OrbitLEO (LLEO/I)
Altitude411 × 415 km
Inclination51.6°

Frequently asked questions

What happened to OPTIMAL-1?

OPTIMAL-1 re-entered Earth's atmosphere on 22 Aug 2023, ending a mission that began with its launch in 2022. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did OPTIMAL-1 re-enter the atmosphere?

OPTIMAL-1 re-entered on 22 Aug 2023, according to Orbital Radar's historical catalogue records.

Who operated and built OPTIMAL-1?

OPTIMAL-1 was operated by ARKE / FUKUIU and built by ARKE (J).

Launched together

MARIORe-entered 2023NUTSATRe-entered 2023LORISRe-entered 2023ORCASatRe-entered 2023DANTESatRe-entered 2023TJREVERBRe-entered 2023SPORTRe-entered 2023PetitSatRe-entered 2023
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.