urn:nasa:pds:context:instrument:mahli.msl 1.0 1.7.0.0 Product_Context 2016-10-01 1.0 extracted metadata from PDS3 catalog and modified to comply with PDS4 Information Model urn:nasa:pds:context:instrument_host:spacecraft.msl::1.0 instrument_to_instrument_host Edgett, K.S., R.A. Yingst, M.A. Ravine, M.A. Caplinger, J.N. Maki, F.T. Ghaemi, J.A. Schaffner, J.F. Bell III, L.J. Edwards, K.E. Herkenhoff, E. Heydari, L.C. Kah, M.T. Lemmon, M.E. Minitti, T.S. Olson, T.J. Parker, S.K. Rowland, J. Schieber, R.J. Sullivan, D.Y. Sumner, P.C. Thomas, E.H. Jensen, J.J. Simmonds, A.J. Sengstacken, R.G. Willson, and W. Goetz, Curiosity's Mars Hand Lens Imager (MAHLI) Investigation, Space Science Reviews, Vol. 170, Issue 1-4, pp. 259-317, 2012, doi:10.1007/s11214-012-9910-4 reference.EDGETTETAL2012 Edgett, K.S., M.A. Caplinger, J.N. Maki, M.A. Ravine, F.T. Ghaemi, S. McNair, K.E. Herkenhoff, B.M. Duston, R.G. Willson, R.A. Yingst, M.R. Kennedy, M.E. Minitti, A.J. Sengstacken, K.D. Supulver, L.J. Lipkaman, G.M. Krezoski, M.J. McBride, T.L. Jones, B.E. Nixon, J.K. Van Beek, D.J. Krysak, and R.L. Kirk, Curiosity's robotic arm-mounted Mars Hand Lens Imager (MAHLI): Characterization and calibration status, MSL MAHLI Technical Report 0001, 2015, doi:10.13140/RG.2.1.3798.5447. reference.EDGETTETAL2015 MARS HAND LENS IMAGER CAMERA Imager not applicable not applicable Instrument Overview =================== The Mars Science Laboratory (MSL) Mars Hand Lens Imager (MAHLI) investigation uses a 2-megapixel color camera with a focusable macro lens aboard the rover, Curiosity, to investigate stratigraphy and grain-scale texture, structure, mineralogy, and morphology of geologic materials in northwestern Gale crater. Of particular interest is the stratigraphic record of a ~5 km thick layered rock sequence exposed on the slopes of Aeolis Mons (also known as Mount Sharp). The instrument consists of three parts, a camera head mounted on the turret at the end of a robotic arm, an electronics and data storage assembly located inside the rover body, and a calibration target mounted on the robotic arm shoulder azimuth actuator housing. MAHLI can acquire in-focus images at working distances from ~2.1 cm to infinity. At the minimum working distance, image pixel scale is ~14 microns per pixel and very coarse silt grains can be resolved. At the working distance of the Mars Exploration Rover Microscopic Imager cameras aboard Spirit and Opportunity, MAHLI's resolution is comparable at ~30 microns per pixel. Onboard capabilities include autofocus, auto-exposure, sub-framing, video imaging, Bayer pattern color interpolation, lossy and lossless compression, focus merging of up to 8 focus stack images, white light and longwave ultraviolet (365 nm) illumination of nearby subjects, and 8 gigabytes of non-volatile memory data storage. For further information about the MAHLI instrument, please see EDGETTETAL2012. For futher information about the MAHLI characterization and calibration status from August 2008 - February 2015 including supplementary files, please see EDGETTETAL2015.