CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2023-1512
OPTIMAL-1
OPTIMAL-1 (NORAD 55183) re-entered Earth’s atmosphere on 22 August 2023, after 8 months in orbit.
Official date
NORAD number
55183
International designator
1998-067VA
Object type
Spacecraft
Country
Japan
Launched
26 Nov 2022Cape Canaveral
Released from
The International Space Station
Re-entered (UTC)
22 Aug 2023UTC calendar day
Time in orbit
8 months269 days
How it ended
Re-entered (natural decay)
Latitude range
51.6°N to 51.6°SFinal inclination 51.6°
Mass
4 kg
Operator
ArkEdge / Fukudai
Built by
ArkEdge
Bus
Cubesat 3U
Programme
ArkEdge
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 51.6°, allowed a re-entry anywhere between 51.6°N and 51.6°S.
Life in orbit
8 monthsOPTIMAL-1’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 22 Aug 2023
10 entriesFrom the same launch
2022-159
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2023-1512
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2023-1512
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.