The ADvanced Earth Observing Satellite 1 (ADEOS-1) "MIDORI" , launched in August 1996, was the first in a series of two scheduled joint international cooperative programs to contribute to global environmental monitoring. The objective of ADEOS-1 was to acquire data on worldwide environmental changes such as the greenhouse effect, ozone layer depletion, tropical rain deforestation, and abnormal climatic conditions. A secondary objective was to develop platform bus technology, interorbital data relay technology, etc. which are necessary for the development of future earth observation systems.

Mission Instrumentation:

ADEOS-1 had the following instrumentation onboard:

Advanced visible near infrared radiometer
Ocean color and temperature scanner
Scattering measurement device
Total ozone mapping spectrometer
Polarization and directionality of the earth's reflectance
Interferometric monitor for greenhouse gases
Improved limb atmospheric spectrometer
Retroreflector In-Space (RIS)

Mission Parameters:

ADEOS-1 Mission Parameters
Sponsor:	(JAXA) Japan
Expected Life:	3 years (stop functioning after 1 year, August 1997)
Primary Applications:	environmental monitoring
Primary SLR Applications:	precision orbit determination
COSPAR ID:	9604601
SIC Code:	1555
NORAD SSC Code:	24277
Launch Date:	August 17, 1996
RIS Diameter:	50 cm
RIS Shape:	hollow cube
Reflectors:	1 corner cube
Orbit:	circular, sun-synchronous sub-recurrent
Inclination:	98.6 degrees
Eccentricity:	0.000
Perigee:	797 km
Period:	101 minutes
Weight:	1200 kg

Additional Information:

Web sites:

Japan Earth Observing Research Center (EORC)

Publications:

Degnan, J.J., Zagwodzki, T.W., McGarry, J.F., and Varghese, T., "NASA Two Color Ranging Experiment to ADEOS/RIS", Proc. Second ADEOS Symposium/Workshop and the 11th RIS Science Team Meeting, Yokohama, Japan, March 10-14, p. 103-127, 1997.
Kunimori, H., Gotoh, T., Nojiri, H., Sawabe, M., Ogawa, M., and Maeda, M., "Preliminary Report on ADEOS/RIS Laser Tracking Experiments", Proc. of the 10th International Workshop on Laser Ranging Instrumentation, Shanghai Observatory, Chinese Academy of Sciences, Shanghai, China, November 11-15, p. 614, 1996.