CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1990-0403
H-1 R/B(1)
H-1 R/B(1) (NORAD 20772) re-entered Earth’s atmosphere on 5 September 1990, after 8 days in orbit.
Official date
NORAD number
20772
International designator
1990-077B
Object type
Rocket body
Country
Japan
Launched
28 Aug 1990Tanegashima
Re-entered (UTC)
5 Sep 1990UTC calendar day
Time in orbit
8 days8 days
How it ended
Re-entered (natural decay)
Latitude range
30.7°N to 30.7°SFinal inclination 30.7°
Mass
1,900 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 30.7°, allowed a re-entry anywhere between 30.7°N and 30.7°S.
Life in orbit
8 daysAlso ended on 5 Sep 1990
2 entriesFrom the same launch
1990-077
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1990-0403
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1990-0403
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.