Instrument Information
IDENTIFIER urn:nasa:pds:context:instrument:hirise.mro::1.1
NAME HIGH RESOLUTION IMAGING SCIENCE EXPERIMENT
TYPE IMAGER
DESCRIPTION The High Resolution Imaging Science Experiment (HiRISE) is one of the remote sensing instruments on the Mars Reconnaissance Orbiter (MRO) spacecraft that acquires orbital observations of the Martian surface during a two earth-year primary mapping phase. MRO, successfully launched in August 2005, arrived at Mars in March 2006. Following orbit insertion the spacecraft went into an aerobraking period to achieve a 250 x 315 kilometer near-polar orbit suitable for the Primary Science Phase (PSP) mapping that started in November 2006. Since the start of PSP HiRISE has been continuously operating acquiring 5-20 observations per day. The HiRISE camera is a pushbroom imaging system featuring a 0.5 m aperture telescope with a 12 m focal effective length and 14 CCD detectors capable of generating images of up to 20,000 cross-scan observation pixels (exclusive of overlap pixels) and 65,000 unbinned scan lines. The HiRISE instrument capabilities include the acquisition of: (1) observations of the Mars surface from orbit with a ground sampling dimension between 25 and 32 cm/pixel, depending on the orbital altitude, along with an intrinsic point spread function of 1.4 pixels (full width at half maximum assuming no spacecraft jitter) and high signal-to-noise ratio (SNR), (2) high-resolution topographic data from stereo observations with a vertical precision of ~0.2 m over areas of ~5x5 pixels (~1.5 m), and (3) observations in 3 colors with high radiometric fidelity. A key instrument design feature includes Charge Couple Device (CCD) detectors with up to 128 lines of Time Delay and Integration (TDI) to create high (>100:1) SNR in the Red filter bandpass anywhere on Mars. At the nominal 300 km MRO orbital altitude the instrument can acquire image swaths of approximately 6 kilometers cross-orbit and 20 kilometers along-orbit.
MODEL IDENTIFIER
NAIF INSTRUMENT IDENTIFIER
SERIAL NUMBER not applicable
REFERENCES McEwen, A.S., E.M. Eliason, J.W. Bergstrom, N.T. Bridges, W.A. Delamere, J.A. Grant, V.C. Gulick, K.E. Herkenhoff, L.Keszthelyi, R.L. Kirk, M.T. Mellon, S.W. Squyres, N. Thomas, C.M. Weitz, MRO's High Resolution Imaging Science Experiment (HiRISE). J. Geophys. Res. 2007.

Snyder, J.P., Map Projections - A Working Manual, U.S. Geol. Surv. Professional Paper 1395, 1987.