ADEOS-2

Japan

Spacecraft nº:

Japanese satellite nº: 106

Advanced Earth Observing Satellite, also called Midori-2

Launch data:

Designation	27597 / 02056A
Launch date	14 Dec 2002 - 01:31 UT
Launch site	Tanegashima
Launch vehicle:	H-2A 202 (#11)
Mission	Remote sensing, Earth observation
Earth orbit on:
Perigee/Apogee	803 km (sun synchronous)
Inclination	98.7°
Period	101 min
Cycle	41 days

Specifications

Prime contractor	Mitsubishi
Operator	NASDA
Platform
Mass at launch	3680 kg
Mass in orbit
Payload pass	1230 kg
Dimension	4 x 4 x 6 m
Solar array	3 x 24 m
Stabilization	3-axis
DC power	BOL: 6200 W EOL: 5350 W
Design lifetime	3 years

Photo of the ADEOS-II spacecraft during integration - Credit: JAXA

Downlink: 465.9875 or 468.875 MHz (EIRP > 27.1 dBm)
Uplink: 401.65 MHz

Payloads

Global Imager (GLI): observes solar radiation reflected from Earth surface. 23 visible + near-IR and 13 far-IR channels. 1 km resolution.
Advanced Microwave Scanning Radiometer (AMSR): 8 frequency bands covering 6.9 to 89 GHz.

Improved Limb Atmospheric Spectrometer (ILAS 2): maps distribution of gases in the stratosphere
Polarization and Directionality of the Earth's reflectances (POLDER): measures the reflection of solar light by aerosols, clouds, oceans and land surfaces.
Seawinds: scatterometer that monitors wind speed and direction. 2 m/s accuracy.

Mission details:

The ADEOS 2 (Advanced Earth Observation Satellite 2) is the satellite which will take over ADEOS's observation mission of monitoring frequent climate changes occurring in the world, expansion of the ozone holes, and global environmental changes, as well as investigating the causes of these phenomena.
ADEOS-II is equipped with two core sensors; AMSR for the observation of various physical content concerning water cycling regardless of day and night, and GLI for the observation of many field such as ocean, land and cloud with high precision, with the combination of other instruments such as Seawinds(NASA/JPL), POLDER(CNES), DCS(CNES), ILAS-II(EA). The ADEOS-II is expected to acquire the date necessary to understand the circulation of water and energy, and the circulation of carbon in order to contribute to study the global environment changes including seizing the mechanism of global environmental changes.
Observation Instruments:
- Advanced Microwave Scanning Radiometer (AMSR)
- Global Imager (GLI)
- Sea Winds (SeaWinds)
- Polarization and Directionality of the Earth's Reflectances (POLDER)
- Improved Limb Atmospheric Spectrometer-II (ILAS-II)

Illustration of the ADEOS-II spacecraft (image credit: JAXA)

External links:

EOportal.org Satellite description

Ref.: #7, #14, #235, #242 - update: 06.01.15

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