Adeos 1

Advanced Earth Observing Satellite, also called Midori (means "green")

---

General

Designation	24277 / 96046A
Launch date	17 Aug 1996
Country of origin	Japan
Operator	NASDA
Mission	Remote sensing
Perigee/Apogee	800/830 km
Inclination	98.6°
Period	101 min
Cycle	41 days
Launch vehicle	H2 #4

To acquire global observation data corresponding to enviromental changes, such as global warming, depletion of the ozone layer, decrease of tropical rain forests, occurrence of unusual weather, etc. it will also help develop the platform bus interorbit data relay technologies necessary for next-generation Earth Observation Systems.

The satellite encountered several problems after launch: first a thruster problem which required to use the 20 N adjusters to reach final orbit; then on 24th September 1996 the satellite shutdown all nonessential systems. At the same time a scanning mirror used by the Interferomic Monitor for Greenhouse Gases became stuck on 20 September. Also, it was found that cosmic radiations affected the on-board computer. In late 1996 it was also found that the OCTS instrument has a mirror blocked.

Satelite cost: $474 million

---

External resources

http://jwocky.gsfc.nasa.gov/adeos/adeos.html

http://www.eorc.nasda.go.jp/ADEOS/
sat-index articles

---

End of life

Out of service	30 Jun 1997
Cause	electrical failure caused by the solar array paddle break itself caused by improper maneuver

Technical data

---

---

Specifications

Prime contractor	Mitsubishi
Platform
Mass at launch	3500 kg
Mass in orbit
Dimension	4 x 4 x 5 m
Solar array	3 x 26 m
Stabilization	3-axis
DC power	4500 W
Design lifetime	3 years

Telemetry/data at: 2220, 8150, 8250, 8350 MHz perhaps also 467.7 MHz?
Ka-band inter orbit links to Comets

---

Payloads

Ocean Color and Temperature Scanner (OCTS)
Advanced Visible and NearInfrared Radiometer (AVNIR)
NASA Scatterometer (NSCAT)
Total Ozone Mapping Spectrometer (TOMS)
Polarization and Directionality of the Earth's reflectances (POLDER)
Interferometric Monitor for Greenhouse Gases (IMG)
Improved Limb Atmospheric Spectrometer (ILAS)
Retroreflector in Space (RIS)

---