Key statistics
Satellite TANSEI 3 (MS-T3) at a glance.
Uptime
17670
Days in orbit
Revolutions
≈ 10.7
Per day
Orbit
HEO
HEO
Inclination
65.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for TANSEI 3 (MS-T3).
Object identification
Identified? True
Debris? False
Object name: TANSEI 3 (MS-T3)
International designator: 1977-012A
Object number (NORAD): 9841
Object ID (CCSDS): 9841
Country: JAPAN (JPN)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 134.09 minutes
Inclination: 65.7588 deg
SMA: 8678.115 km
Apoapsis: 3802.404 km
Periapsis: 797.557 km
RAAN: 353.1116 deg
Eccentricy: 0.1731278
Argument of periapsis: 355.634 deg
Mean anomaly: 3.0994 deg
Mean motion: 10.73901934 rev/day
Mean motion (dot): -0.00000061 rev/day2
B* drag term: -0.000067898 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 6:05 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 1:10 p.m. UTC
TLE line 0: 0 TANSEI 3 (MS-T3)
TLE line 1: 1 09841U 77012A 25187.54895152 -.00000061 00000-0 -67898-4 0 9992
TLE line 2: 2 09841 65.7588 353.1116 1731278 355.6340 3.0994 10.73901934896597
Live tracking on map
Real-time ground track for satellite TANSEI 3 (MS-T3).
In-orbit conjunctions
There are no conjunctions computed for TANSEI 3 (MS-T3), at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Japanese satellite used to test the new Mu-3H launch vehicle, experiment magnetic stabilization and ovserve UV radiation
TANSEI 3 (MS-T3) was lifted into orbit during the mission ‘Mu-3H | Tansei-3’, on board a Mu-3H space rocket.
The launch took place on Feb. 19, 1977, 5:15 a.m. from Mu Center.
For more information about the launch, click the button.
Mu-3H | Tansei-3
Agency: N/A
Status: Launch Successful
Launch date: Feb. 19, 1977, 5:15 a.m. UTC
Rocket: Mu-3H
Launch pad: Mu Center
Location: Uchinoura Space Center, Japan
...
Latest news about this satellite
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