Key statistics
Satellite MOS 1A (MOMO 1) at a glance.
Uptime
14018
Days in orbit
Revolutions
≈ 14.0
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.9
Latest
Satellite identification and parameters
Extended collection of information and parameters for MOS 1A (MOMO 1).
Object identification
Identified? True
Debris? False
Object name: MOS 1A (MOMO 1)
International designator: 1987-018A
Object number (NORAD): 17527
Object ID (CCSDS): 17527
Country: JAPAN (JPN)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 102.63 minutes
Inclination: 98.8932 deg
SMA: 7261.206 km
Apoapsis: 890.235 km
Periapsis: 875.908 km
RAAN: 241.0221 deg
Eccentricy: 0.0009866
Argument of periapsis: 75.936 deg
Mean anomaly: 35.5104 deg
Mean motion: 14.03103105 rev/day
Mean motion (dot): -0.0000018 rev/day2
B* drag term: -0.000088116 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 10:46 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 6:41 p.m. UTC
TLE line 0: 0 MOS 1A (MOMO 1)
TLE line 1: 1 17527U 87018A 25187.77861330 -.00000180 00000-0 -88116-4 0 9993
TLE line 2: 2 17527 98.8932 241.0221 0009866 75.9360 35.5104 14.03103105961837
Live tracking on map
Real-time ground track for satellite MOS 1A (MOMO 1).
In-orbit conjunctions
A list of the most updated potential collisions computed for object MOS 1A (MOMO 1).
Associated space launch
Japanese Earth observation satellite
MOS 1A (MOMO 1) was lifted into orbit during the mission ‘N-2 | Momo 1a’, on board a N-2 space rocket.
The launch took place on Feb. 19, 1987, 1:23 a.m. from Osaki Launch Complex.
For more information about the launch, click the button.
N-2 | Momo 1a
Agency: N/A
Status: Launch Successful
Launch date: Feb. 19, 1987, 1:23 a.m. UTC
Rocket: N-2
Launch pad: Osaki Launch Complex
Location: Tanegashima Space Center, Japan
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