Key statistics
Satellite M-4S R/B at a glance.
Uptime
19754
Days in orbit
Revolutions
≈ 13.8
Per day
Orbit
LEO
Low Earth Orbit
Inclination
29.7
Latest
Satellite identification and parameters
Extended collection of information and parameters for M-4S R/B.
Object identification
Identified? True
Debris? False
Object name: M-4S R/B
International designator: 1971-011B
Object number (NORAD): 5126
Object ID (CCSDS): 5126
Country: JAPAN (JPN)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 104.632 minutes
Inclination: 29.6825 deg
SMA: 7355.365 km
Apoapsis: 986.306 km
Periapsis: 968.153 km
RAAN: 60.718 deg
Eccentricy: 0.001234
Argument of periapsis: 163.7401 deg
Mean anomaly: 196.3573 deg
Mean motion: 13.76247118 rev/day
Mean motion (dot): 0.0000017 rev/day2
B* drag term: 0.00010275 1/REarth
Two-line elements (TLE)
Creation date: March 16, 2025, 6:34 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: March 16, 2025, 3:13 a.m. UTC
TLE line 0: 0 M-4S R/B
TLE line 1: 1 05126U 71011B 25075.13452137 .00000170 00000-0 10275-3 0 9995
TLE line 2: 2 05126 29.6825 60.7180 0012340 163.7401 196.3573 13.76247118720577
Live tracking on map
Real-time ground track for satellite M-4S R/B.
Associated space launch
Japanese technological test satellite designed by the Institute of Space and Aeronautical Science, University of Tokyo.
M-4S R/B was lifted into orbit during the mission ‘Mu-4S | Tansei-1’, on board a Mu-4S space rocket.
The launch took place on Feb. 16, 1971, 4 a.m. from Mu Center.
For more information about the launch, click the button.
Mu-4S | Tansei-1
Agency: N/A
Status: Launch Successful
Launch date: Feb. 16, 1971, 4 a.m. UTC
Rocket: Mu-4S
Launch pad: Mu Center
Location: Uchinoura Space Center, Japan
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
