Research on Space Science INnovative-technology Demonstration Experiment "REIMEI" (INDEX)

Latter Phase In Operation

About INnovative-technology Demonstration Experiment "REIMEI" (INDEX)

Cutting-edge small satellite developed in-house

The "Reimei" (INDEX) is a small scientific satellite that was launched as a piggyback on the Dnepr Launch Vehicle from Baikonur Cosmodrome in the Republic of Kazakhstan at 6:10 a.m. on August 24, 2005 (Japan Standard Time.)
REIMEI will perform in-orbit demonstrations of cuttingedge satellite technology over a brief period of time, it will carry onboard instruments for physical observation suitable for a small satellite, aimed at obtaining the world's most advanced scientific results. Since the satellite is small, it was made in-house by JAXA. Moreiver, launch casts will be much lower than those of conventional scientific satellites because REIMEI will ride piggy-back on a large rockets by making use of the excess capacity.

Launch date: August 24, 2005

Characteristics of INnovative-technology Demonstration Experiment "REIMEI" (INDEX)

Actively verifying latest engineering technology and observing auroras through scientific observation methods

Not all scientific missions require a large-size scientific satellite. In the astronomical satellite field, small satellites are not popular as an aperture of a telescope must be installed. On the other hand, for plasma magnetosphere missions, scientists are increasingly interested in small satellites as they can achieve meaningful missions. In the case of engineering missions, scientists are looking for a swift verification method for a new technology. In order to answer these needs, the REIMEI aims to verify the high-performance and high-accuracy Attitude Control for a small satellite.

Major Characteristics

International Designation Code 2005-031B
Launch Date 06:10, August 24, 2005 (JST)
Launch Vehicle Dnepr launch vehicle
Location Baikonur Cosmodrome, Kazakhstan
Shape 60cm x 60cm x 70cm
Weight 60kg
Orbiter Quasi-circular orbit
Altitude Perigee 610 km, Apogee 654 km
Inclination 97.8 degrees
Period 97 minutes
Attitude Control Three-axis stabilization (Bias momentum method)

Mission talk by team leaders

Project manager Hirobumi Saito

Here are messages from Project Managers.