JAS-2 was successfully launched on August 17, 1996, by H-II rocket No.4, along with the earth observation platform satellite ADEOS, from Tanegashima Space Center of NASDA. Lift-off time was 1053 JST, or 0153 UTC, and after some 38 minutes, JAS-2 was separated. Separation was first reported by NASDA, and then a few minutes later report of signal reception of JAS-2 was transfered to the Space Center from Showa Base at Antarctica through INMARSAT. It orbits the Earth in a polar orbit at 1300 km altitude in a time of 112 minutes. The inclination is 98°. The transmission power of the beacon is 100 mW, the transponder 1 watt.