CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1992-0122
H-1 R/B(2)
H-1 R/B(2) (NORAD 21670) re-entered Earth’s atmosphere on 1 May 1992, after 8 months in orbit.
Official date
NORAD number
21670
International designator
1991-060C
Object type
Rocket body
Country
Japan
Launched
25 Aug 1991Tanegashima
Re-entered (UTC)
1 May 1992UTC calendar day
Time in orbit
8 months250 days
How it ended
Re-entered (natural decay)
Latitude range
28.7°N to 28.7°SFinal inclination 28.7°
Mass
2,118 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 28.7°, allowed a re-entry anywhere between 28.7°N and 28.7°S.
Life in orbit
8 monthsH-1 R/B(2)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 1 May 1992
1 entryFrom the same launch
1991-060
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1992-0122
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1992-0122
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.