CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2003-0119
OSUMI (LAMBDA-4S)
OSUMI (LAMBDA-4S) (NORAD 4330) came down while still attached to its host on 2 August 2003, after 33 years, 5 months in orbit.
Official date
NORAD number
4330
International designator
1970-011A
Object type
Spacecraft
Country
Japan
Launched
11 Feb 1970Uchinoura
Re-entered (UTC)
2 Aug 2003UTC calendar dayAlso recorded as 1 Aug 2003
Time in orbit
33 years, 5 months12,225 days
How it ended
Came down attached to its host
Latitude range
31.0°N to 31.0°SFinal inclination 31.0°
Mass
9 kg
Operator
ISAS
Built by
Nissan Motor
Bus
L-4S Satellite
Programme
L-4S
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 31.0°, allowed a re-entry anywhere between 31.0°N and 31.0°S.
Life in orbit
33 years, 5 monthsOSUMI (LAMBDA-4S)’s lowest and highest points above Earth, week by week, from its tracking history.
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2003-0119
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2003-0119
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.