Japan Aerospace Exploration Agency (JAXA)
The Japan Aerospace Exploration Agency (JAXA) confirmed the separation of the Small Demonstration Satellite-4 (SDS-4) from the H-IIA Launch Vehicle No. 21 (H-IIA F21) via data received from the satellite. The SDS-4 was launched by the H-IIA F21 at 1:39 a.m. on May 18, 2012 (Japan Standard Time) as a secondary payload with the Global Change Observation Satellite 1st – Water “SHIZUKU” (GCOM-1.)
The satellite is currently in good health.