The ADEOS TOMS instrument was launched on 17th Aug 1996 from Tanegashima Space Center in Japan. ADEOS is the Advanced Earth Observing Satellite, developed by NASDA (the National Space Development Agency of Japan). The instrument was designed to operate for 3 years. The satellite flew in a 800km orbit, giving full daily global coverage, and used the following wavebands: 308.6, 312.5, 317.5, 332.2, 331.2, 360.0 nm. On June 30, 1997, the ADEOS Spacecraft failed and was replaced by EarthProbe/TOMS