CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1985-0123
M-3S2 R/B(1)
M-3S2 R/B(1) (NORAD 15466) re-entered Earth’s atmosphere on 22 May 1985, after 4 months in orbit.
Official date
NORAD number
15466
International designator
1985-001C
Object type
Rocket body
Country
Japan
Launched
7 Jan 1985Uchinoura
Re-entered (UTC)
22 May 1985UTC calendar day
Time in orbit
4 months135 days
How it ended
Re-entered (natural decay)
Latitude range
31.1°N to 31.1°SFinal inclination 31.1°
Mass
305 kg
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 31.1°, allowed a re-entry anywhere between 31.1°N and 31.1°S.
Life in orbit
4 monthsM-3S2 R/B(1)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 22 May 1985
1 entry
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1985-0123
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1985-0123
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.