MOS-1A

Japan

International Sat. n°:

Japanese satellite n°: 44
Enginering name: LS-B
Also called Momo-1A

Launch data:

Designation 17527 / 87018A
Launch date19 Feb 1987 - 10:23
Launch site Tanegashima Space Center
Launch vehicle N-2
MissionEarth Observation, Remote sensing
Earth orbit on:
Perigee/Apogee 907/909 km
Inclination 99°
Period 103.2 min

Specifications:

Prime contractor NEC
Mass at launch 740 kg
Dimension 1.26 x 1.48 x 2.4 m
Solar array asymmetric, 2 x 5.3 m
Stabilization 3-axis
Design lifetime 2 years

End of life

Out of service:  yes
Cause:  
Reentered date:  still in orbit
Lifetime: 

MOS-1 on test stand - Credit: JAXA

Payloads:

MESSR (Multispectral Electronic Self-Scanning Radiometer)

Wavebands 0.51-0.59 µm (visible): water body mapping
0.61-0.69 µm (visible): vegetation differentiation
0.72-0.80 µm (near IR): imaging through haze
0.80-1.10 µm (near IR): land/water separation
Resolution 50 m
Swath width 100 km

VTIR (Visible and Thermal IR Radiometer)

Wavebands 0.50-0.70 µm (visible): snow. ice and cloud
6-7 µm (water vapor band): upper atmosphere water vapor, cirrus
10.5-11.5 µm (thermal IR): ocean currents. sea surface temperature, snow
10.5-12.5 µm (thermal IR): ocean currents. sea surface temperature, snow
Resolution visible: 0.9 km; others: 2.7 km
Swath width 1500 km

MSR (Microwave Scanning Radiometer)

Wavebands 23.8 +/- 0.2 GHz: water vapor, rain and snowfall
31.4 +/- 0.25 GHz: ice, cloud, snowfall
Resolution 32 km in 23 GHz and 23 in 31 GHz
Swath width 317 km

Downlink frequency: 136.12 MHz

Ref: #15, #235 - update: 09.09.10