urn:nasa:pds:cassini-coradar:coradr_0144.ancillary:target_corner4_spectra.txt 1.0 1.9.0.0 Product_File_Text Elachi, C.; Allison, M. D.; Borgarelli, L.; Encrenaz, P.; Im, E.; Janssen, M. A.; Johnson, W. T. K.; Kirk, R. L.; Lorenz, R. D.; Lunine, J. I.; Muhleman, D. O.; Ostro, S. J.; Picardi, G.; Posa, F.; Rapley, C. G.; Roth, L. E.; Seu, R.; Soderblom, L. A.; Vetrella, S.; Wall, S. D. Wood, C. A.; Zebker, H. A. 2004 Title: "Radar: The Cassini Titan Radar Mapper" Publication: The Cassini-Huygens Mission, by Russell, Christopher T., ISBN 978-1-4020-3147-2. Kluwer Academic Publishers, 2004, p. 71 DOI: 10.1007/1-4020-3874-7_2 Abstract: The Cassini RADAR instrument is a multimode 13.8 GHz multiple-beam sensor that can operate as a synthetic-aperture radar (SAR) imager, altimeter, scatterometer, and radiometer. The principal objective of the RADAR is to map the surface of Titan. This will be done in the imaging, scatterometer, and radiometer modes. The RADAR altimeter data will provide information on relative elevations in selected areas. Surfaces of the Saturn's icy satellites will be explored utilizing the RADAR radiometer and scatterometer modes. Saturn's atmosphere and rings will be probed in the radiometer mode only. The instrument is a joint development by JPL/NASA and ASI. The RADAR design features significant autonomy and data compression capabilities. It is expected that the instrument will detect surfaces with backscatter coefficient as low as -40 dB. 2021-03-18 1.0 conversion of PDS3 CO RADAR archive to comply with PDS4 Information Model urn:nasa:pds:context:node:node.imaging has_association urn:nasa:pds:context:investigation:mission.cassini-huygens document_to_investigation TARGET_CORNER4_SPECTRA.TXT extras.TARGET_CORNER4_SPECTRA.TXT 888 ca6a1068c4e3e10ec046569a712864e2 TARGET_CORNER4_SPECTRA.TXT extras.stream_text 0 7-Bit ASCII Text These files consists of two columns of ascii data. The first column is the relative doppler frequency in Hz. The target is centered at 0 Hz. The second column is the power spectral density at that relative doppler in Watts/freq bin. An estimate of the noise has been subtracted, and negative values occur becuase of errors in the noise estimate. There is at least one of these files corresponding to the center of the target. Carriage-Return Line-Feed