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DESIGN AND TECHNICAL DATA |
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UV-Vis-NIR High Resolution Imaging Double Spectrometer
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passive hyperspectral UV-VIS-NIR sensor
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high straylight suppression
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moderately high spectral resolution
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high spectral stability
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high radiometric accuracy
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high dynamic range (7 - 8 orders of magnitude)
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moderate spatial resolution
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3 different measurement modes for atmospheric measurements
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Scanner Unit
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Number of axis:
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2
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Angular resolution:
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2.5 arcsec
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Telescope
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Aperture Diameter
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31 mm
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Spectrometer
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Entrance slit, size:
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0.190 mm x 9.6 mm
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Instantaneous field of view size:
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0.045 deg x 1.8 deg
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Sun aperture size:
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0.06 mm x 3 mm
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Sun aperture instantaneous field of view size:
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0.045 deg x 0.72 deg
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Thermal Control
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Optical bench nominal temperature:
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253 K
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Optical bench orbital temperature variation:
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0.25 K
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Detector Temperature:
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150 K - 235 K
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Detector array orbital temperature variation:
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0.02 K
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In-Flight Calibration H/W
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On-Board Diffuser:
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aluminium reflection diffuser
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Spectral line source:
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Hollow cathode discharge lamp, Pt/Cr cathode with Ne filling
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White light source:
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Tungsten-Halogen 5 Watts lamp with equivalent blackbody temperature of 3000 K.
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Measurement Data
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Data Processing:
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Coadding Mode
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Nominal Data Rate: [bit/sec]
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400.000
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High Data Rate: [bit/sec]
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1.867.000
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Absolute Datation Accuracy [ms]
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10
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Relative Datation Accuracy [ms]
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1
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Budgets
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Mass (Budget):[kg]
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198
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Power(Budget): [W]
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122
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