HiRISE EDR & RDR Software Archive Volumes Software Interface Specification     Software Interface Specification for HiRISE Experimental Data Record Products     Software Interface Specification for HiRISE Reduced Data Record Products

HiRISE Requirements and Performance Characteristics Parameter Performance Comments Ground Sample Distance (GSD) 30 cm/pixel From 300 km altitude Telescope aperture 0.5 m, f/24 For resolution and SNR Spectral range 400 to 600 nm 550 to 850 nm 800 to 1000 nm Blue-Green (BG) Red Near infra-red (NIR) SNR      Blue-Green             Red             NIR Typically 100:1 Typically 200:1 Typically 100:1 Achieved with TDI, backside thinned CCDs,and 50 cm aperture Swath      Red Width      Blue-Green &NIR >6 km >1.2 lm From 300 km altitude From 300 km altitude Swath length >2x swath width Along track Data precision 14 bit A/D 12 to 13 bit usable Data compression Real-time 14 to 8 bit Up to 16 x 16 binning Lossless compression at SSR Look-up table Increases areal coverage ~2:1 Data storage 28 Gbits All channels Number of pixels across swath 20,264 Red 4,048 Green and NIR From swath and pixel scale TDI line time ≥76 μsec To match ground track speed CCD read noise < 50 electrions rms at 22° C Achieve SNR at low signal levels FOV 1.14° x 0.18° IFOV 1 x 1 μrad Detector angular subtense Relative Radiometry <1% pixel to pixel Absolute 20%

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