Marine Observation Satellite-1 "Momo-1" (MOS-1)

Momo-1(MOS-1), Japan's first marine observation satellite, was launched in 1987 as a link in a global satellite observation system for more effective natural resource utilization and for environmental protection.
Momo-1 was equipped with three types of sensors: MESSR,( a spectrometer for measuring visible near infrared radiation), VTIR, (a device for measuring visible thermal infrared radiation), MSR, (for measuring microwave radiation).These seusor finished their rolls oe seuding wave onNovember 29,1995.
Momo-1b(MOS-1b), which has the same functions as Momo-1, was launched subsequently as a follow-up and finished its opration on April 17,1996.
Observation Images


Major Characteristics
Momo-1 (MOS-1) |
International Designation Code | 1987-018A |
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Launch Date | 2/19/1987 | |
Launch Vehicle | N-II Launch Vehicle (N16F) | |
Launch Site | Tanegashima Space Center | |
Momo-1b (MOS-1b) |
International Designation Code | 1990-13A |
Launch Date | 2/7/1990 | |
Launch Vehicle | H-I Launch Vehicle (H21F) | |
Launch Site | Tanegashima Space Center | |
Weight | Approx 740kg (at lift off) | |
Altitude | Approx. 909km | |
Inclination | Approx. 99 degrees | |
Orbital Period | Approx. 103minutes (Recurrence cycle 17 days) | |
Shape | Box type with expanding type solar paddle (one wing) | |
Mission Life | 2 years | |
Attitude Control | Three-axis stabilized (controled bias momentum) |