Utilizing Space Through Satellites Marine Observation Satellite-1 "Momo-1" (MOS-1)

Operation Finished

About 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

International Designation Code 1987-018A
Launch Date 2/19/1987
Launch Vehicle N-II Launch Vehicle (N16F)
Launch Site Tanegashima Space Center
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)