Operation Finished



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.

Main Characteristics

Launch Date 2/19/1987
Launch Vehicle N-II Launch Vehicle (N16F)
launch Site Tanegashima Space Center
Launch Date 2/7/1990
Launch Vehicle H-I Launch Vehicle (H21F)
launch Site Tanegashima Space Center
Weight Approx 740kg (at lift off)
Shap Box type with expanding type solar paddle (one wing)
Mission Life 2 years
Attitude Control Three-axis stabilized (controled bias momentum)