CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2025-0690
M2-B
M2-B (NORAD 47973) re-entered Earth’s atmosphere on 1 April 2025, after 4 years in orbit.
Official date
NORAD number
47973
International designator
2021-023J
Object type
Spacecraft
Country
Australia
Launched
22 Mar 2021Rocket Lab Launch Complex
Re-entered (UTC)
1 Apr 2025UTC calendar day
Time in orbit
4 years1,471 days
How it ended
Re-entered (natural decay)
Latitude range
45.0°N to 45.0°SFinal inclination 45.0°
Mass
10 kg
Operator
U. NSW / RAAF
Built by
U. NSW
Bus
Cubesat 6U
Programme
RAAF
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 45.0°, allowed a re-entry anywhere between 45.0°N and 45.0°S.
Life in orbit
4 yearsM2-B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 1 Apr 2025
8 entriesFrom the same launch
2021-023
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2025-0690
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2025-0690
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.