The Global Ozone Monitoring Experiment (GOME) was launched on April 21st 1995 on board the second European Remote Sensing Satellite (ERS-2).  GOME is a nadir-viewing spectrometer that measures the solar radiation scattered by the atmosphere in the ultraviolet and visible spectral region (240 to 790 nm). The sensor has a high spectral resolution of 0.2 to 0.4 nm sensed by four individual linear detector arrays each with 1024 detector pixels. The field of view may be varied in size from 320 km x 40 km to 960 km x 80 km. GOME due to on-board recorder problems does not have global coverage since June 2003. The operational GOME total ozone data are processed with GDP4.0. Details can be found in the GOME ATBD document.