VGT-P
type: Concept
change note: 2018-07-10 07:15:57.0 [mmorahan] Insert Concept add broader relation (VGT-P [88094b8c-c68c-4e4f-a4d9-1d5b6e15ba5b,367803] - Imaging Spectrometers/Radiometers [944b7691-af37-4fb4-9393-c114e7997829,347979]);
change note: 2018-07-10 07:22:22.0 [mmorahan] insert WeightedRelation (id: null related concept uuid: 6f507389-2c7c-41b4-a638-95bdc73b63a3 relationship type: null relationship value: null generated by: null);
change note: 2018-07-10 07:21:02.0 [mmorahan] insert AltLabel (id: null category: primary text: Vegetation Instrument - PROBA language code: en); insert Definition (id: null text: The PROBA-Vegetation payload is a multispectral pushbroom spectrometer with 4 spectral bands and with a very large swath of 2285 km to guarantee daily coverage above 35 latitude. The payload consists of 3 identical SI (Spectral Imagers), each with a very compact TMA telescope. Each TMA, having a FOV of 34º, contains 4 spectral bands: 3 bands in the visible range and one band in the SWIR spectral range. The swath TFOV is 103º. 42) 43) 44) 45) VGT-P is restricted to imaging land and dedicated calibration zones. On-board the spacecraft, there is for each spectral imager a land sea mask that is provided by the PI (Principal Investigator). The land sea mask removes the pixels that contain only sea and it dictates when each SI should be in imaging mode. OIP (Optronic Instruments & Products, Belgium) is the industrial prime contractor for the payload and is responsible for the design and development of the PROBA-V instrument and AMOS (Belgium) is responsible for the manufacturing and alignment of the telescope. The major payload challenge lies in the fact that the wide-swath imaging instrument has to fit into a small satellite with limited resources. The TMAs and the SWIR FPA have to be developed for the VGT-P since no COTS products are available. Optical system Type: Pushbroom instrument using a reflective optical design 3 identical TMA telescopes mounted on an optical bench together with the star tracker optical heads allowing precise co-alignment. FOV = 33.6º x 5.5º, a TFOV of nearly 103º is provided with 3 SIs (Spectral Imagers) 4 spectral bands: 3 VNIR centered at (460, 658, 834 nm) and 1 SWIR band (1610 nm) VNIR detector : 3 x 6000 pixels of 13 µm (E2V, France)- quadrilinear AT71547 SWIR detector: liner array composed of 3 mechanically butted detectors of 1024 pixels (Xenics NV, Belgium) Spectral bands …
definition: The PROBA-Vegetation payload is a multispectral pushbroom spectrometer with 4 spectral bands and with a very large swath of 2285 km to guarantee daily coverage above 35 latitude. The payload consists of 3 identical SI (Spectral Imagers), each with a very compact TMA telescope. Each TMA, having a FOV of 34º, contains 4 spectral bands: 3 bands in the visible range and one band in the SWIR spectral range. The swath TFOV is 103º. 42) 43) 44) 45) VGT-P is restricted to imaging land and dedicated calibration zones. On-board the spacecraft, there is for each spectral imager a land sea mask that is provided by the PI (Principal Investigator). The land sea mask removes the pixels that contain only sea and it dictates when each SI should be in imaging mode. OIP (Optronic Instruments & Products, Belgium) is the industrial prime contractor for the payload and is responsible for the design and development of the PROBA-V instrument and AMOS (Belgium) is responsible for the manufacturing and alignment of the telescope. The major payload challenge lies in the fact that the wide-swath imaging instrument has to fit into a small satellite with limited resources. The TMAs and the SWIR FPA have to be developed for the VGT-P since no COTS products are available. Optical system Type: Pushbroom instrument using a reflective optical design 3 identical TMA telescopes mounted on an optical bench together with the star tracker optical heads allowing precise co-alignment. FOV = 33.6º x 5.5º, a TFOV of nearly 103º is provided with 3 SIs (Spectral Imagers) 4 spectral bands: 3 VNIR centered at (460, 658, 834 nm) and 1 SWIR band (1610 nm) VNIR detector : 3 x 6000 pixels of 13 µm (E2V, France)- quadrilinear AT71547 SWIR detector: liner array composed of 3 mechanically butted detectors of 1024 pixels (Xenics NV, Belgium) Spectral bands VNIR B0: 0.415-0.500 µm (Blue) VNIR B1: 0.580-0.770 µm (Red) VNIR B2 : 0.730-0.960 µm (NIR) SWIR:1.480-1.760 µm Optical parameters Focal length: 109.6 mm Aperture diam…
in scheme: instruments

Imaging Spectrometers/Radiometers
type: Concept