Full Name Innovative Technology Demonstration Experiment Status Operational (extended)
Mission Agencies JAXA Launch Date 23 Aug 2005
Mission Links mission site EOL Date Aug 2025
EO Portal Info NORAD Catalog #
International Designator
Orbit Type Sun-synchronous Orbit Period 97.3 minutes
Orbit Sense Orbit Inclination 98.16 deg
Orbit Altitude 631 km Orbit Longitude
Orbit LST 12:50 Repeat Cycle
Objectives and Applications INDEX is a Japanese microsatellite of JAXA/ISAS (Institute of Space and Astronomical Science). In JAXA tradition, the INDEX spacecraft was renamed to REIMEI after launch - meaning "dawn" in Japanese. The mission objective is to use INDEX as a) a demonstration satellite of advanced engineering technologies, and b) to support a small-scale astronomical science mission (fine structural observation of the aurora)
Mission Measurements
Mission Instruments
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