SEVIRI
type: Concept
in scheme: instruments
definition: This radiometer is the main instrument on board the Meteosat Second Generation (MSG). MSG is a cooperation program of ESA (European Space Agency) and EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites). This multi-wavelength camera, called SEVIRI, provides images of the Earth disc with cloud, land, ocean, snow and other information made visible by day and by night. It takes one full resolution image every 15 minutes, thus illustrating the weather in motion. Its operating principle is based on collecting the Earth's radiation by means of a telescope and focusing it on detectors sensitive to 12 different bands of the electromagnetic spectrum. This is followed by the electronic processing of the signals provided by the detectors. The infrared channels require low detector temperature and hence a large passive cooler. The instrument's overall mass is 270 kg and its power consumption is nominally less than 123 W during operations. Additional information can be found at the ESA MSG web site: http://www.esa.int/SPECIALS/MSG/ Group: Instrument_Details Entry_ID: SEVIRI Group: Instrument_Identification Instrument_Category: Earth Remote Sensing Instruments Instrument_Class: Passive Remote Sensing Instrument_Type: Spectrometers/Radiometers Instrument_Subtype: Imaging Spectrometers/Radiometers Short_Name: SEVIRI Long_Name: Spinning Enhanced Visible and Infrared Imager End_Group Group: Associated_Platforms Short_Name: METEOSAT Short_Name: MSG End_Group Group: Spectral_Frequency_Information Wavelength_Keyword: Visible Number_Channels: 1 Spectral_Frequency_Coverage_Range: 0.56-0.71µm Spectral_Frequency_Resolution: 1 km End_Group Group: Spectral_Frequency_Information Wavelength_Keyword: Near Infrared Number_Channels: 1 Spectral_Frequency_Coverage_Range: 0.74-0.88µm Spectral_Frequency_Resolution: 5 km End_Group Group: Spectral_Frequency_Information Wavelength_Keyword: Infrared > Thermal Number_Channels: 7 Spectral_Frequency_Coverage_Range: 5.35-14.46µm …

Imaging Spectrometers/Radiometers
type: Concept