Nimbus-7

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Satellite characteristics

Launch Date - End 24 octobre 1978 - 1 janvier 1995

Status Decommissioned

Orbit type sun-synchronous

Satellite family: Nimbus

Nimbus is a NASA meteorological research-and-development satellite program (parallel to the operational TIROS program) which started in 1963 with the prime objective to test new instrument concepts (introduction of sensor technology), a secondary objective was to provide atmospheric data for improved weather forecasts. Eventually, the series grew more into a major Earth sciences program (study of oceans, land surfaces and atmosphere) with the availability of better sensing instrumentation. The ERTS (Earth Resources Technology Satellite, later renamed to Landsat-1) program, developed in the early 1970s, is a direct descendent of the Nimbus program.

Sensor characteristics

Sensor name CZCS (Coastal Zone Color Scanner)
Sensor short description
Sensor type Imaging radiometer (Vis/IR)
Resolution class Low (300 m - 1 km)
Swath width (at nadir) 1566 km
Sensor name ERB (Earth Radiation Budget)
Sensor short description
Sensor type Earth radiation budget radiometer
Resolution class Very Low (> 1 km)
Sensor name LIMS (Limb Infrared Monitor of the Stratosphere)
Sensor short description
Sensor type Atmospheric instrument
Resolution class Very Low (> 1 km)
Sensor name SAM-II (Stratospheric Aerosol Measurement II)
Sensor short description
Sensor type Atmospheric instrument
Resolution class Very Low (> 1 km)
Sensor name SAMS (Stratospheric and Mesospheric Sounder)
Sensor short description
Sensor type Atmospheric instrument
Resolution class Very Low (> 1 km)
Sensor name SBUV/TOMS (Solar Backscatter Ultraviolet/Total Ozone Mapping Spectrometer)
Sensor short description
Sensor type Atmospheric instrument
Resolution class Very Low (> 1 km)
Sensor name SMMR (Scanning Multichannel Microwave Radiometer)
Sensor short description

SMMR is a multispectral, dual-polarization microwave radiometer observing in K-band (~0.75cm to ~2.5cm), X-band (~2.5cm to ~4.0cm) and C-band (~4.0cm to ~8.0cm).

Sensor type Imaging radiometer (passive microwave)
Resolution class Very Low (> 1 km)
Spatial resolution 22 km to 120 km
Spectral bandwidth 6.6 GHZ (45.4 mm) 10.7 GHz (28 mm) 18.0 GHz (16.6 mm) 21.0 GHz (14.2 mm) 37.0 GHz (8.1 mm)
Swath width (at nadir) 600 km
Max look angle 42°
Sensor name THIR (Temperature Humidity Infrared Radiometer)
Sensor short description
Sensor type Atmospheric instrument
Resolution class Very Low (> 1 km)