EXPRESS aims to establish of opportunities to conduct flexible, proactive space environment utilization experiments,promote industrial utilization of space environment and research on reentry and retrieval technology.

Name (pre-launch in parentheses) EXPRESS
Objectives 1.Establishment of opportunities to conduct flexible, proactive space environment utilization experiments.
2.Technological development to promote industrial utilization of space environment
3.Research on reentry and retrieval technology
Launch Date 22:45, January 15, 1995 (JST)
Launch Location Kagoshima Space Center (Uchinoura)
Launch Vehicle M-3SII-8
Weight 770kg
Dimensions Overall length 2.2m, diameter 1m (at connecting entry module and service module)
Including solid rocket for orbital escape
Orbit Altitude Perigee 210 km, Apogee 400 km (planned)
Orbit Inclination 31° (planned)
Type of orbit Elliptical
Orbital Period 90 min (planned)
Scientific Instruments Heating furnace for catalyst-generation experiment (CATEX), etc.
End of Operation January 15, 1995
Reentry Date January 16, 1995
Operation After entry into orbit, a catalyst-generation experiment for oil refining was to have been conducted for five days, and about 10 hours later, the solid-rocket motor was to have been ignited to allow the reentry module to escape from earth orbit for retrieval. A malfunction of the rocket's second stage, however, caused EXPRESS to failed to enter the planned orbit. It reentered the earth during its third rotation around the earth. The satellite fell to earth 10 months later and was discovered in Ghana and recovered. (Photo: recovered EXPRESS)

Post-recovery analysis allowed us to obtain data on the capsule’s thermal-resistance performance, condition of onboard instruments and flight results.