Vegetation payload

Details Vegetation payload Vegetation payload

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2209..126p&link_type=abstract

Proc. SPIE Vol. 2209, p. 126-136, Space Optics 1994: Earth Observation and Astronomy, M. G. Cerutti-Maori; Philippe Roussel; Eds

Physics

Optics

Scientific paper

The vegetation payload's mission is in simple terms to take, record and transmit to the ground medium resolution (1 km) optical images of the globe in four registered spectral channels ranging from the visible to the medium infrared (MIR). The payload, which is built by AEROSPATIALE, is planned for launch in 1997 on the SPOT4 satellite, and will take advantage of a close commonality with the HRVIR high-resolution instruments, sharing spectral bands and geometrical references with them. The complete independent payload includes a wide-angle medium resolution push-broom optical instrument, electronic capability for processing and recording the optical information, and an L- and X-bands image telemetry subsystem which sends the data to the ground in real time and dump modes. It also features independent service subsystems and an original instrument calibration device. The main new features are the wide field optics telemetry, an improved electronic mass memory subsystem, and identical B2, B3 and MIR spectral bands with HRVIR. The Vegetation system, which include the payload as space segment, is financed by EEC, France, Sweden, Belgium and Italy, and is developed by CNES (French Space Agency).

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