PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM START_TIME = 2001-03-01T05:07:00 STOP_TIME = 2001-03-01T05:13:00 DATA_SET_ID = "MGS-M-RSS-1-EXT-V1.0" INSTRUMENT_HOST_NAME = "MARS GLOBAL SURVEYOR" TARGET_NAME = MARS ^PS_DOCUMENT = "10600507.PS1" OBJECT = PS_DOCUMENT DOCUMENT_NAME = "MGS Radio Occultation Quick Look Plot Set" PUBLICATION_DATE = 2001-03-01 DOCUMENT_TOPIC_TYPE = "QUICK LOOK PLOTS" INTERCHANGE_FORMAT = BINARY DOCUMENT_FORMAT = "POSTSCRIPT" FILES = 1 DESCRIPTION = " PostScript files contain one figure each showing quick look views after early processing of raw data. These may be useful in identifying data which deserve more detailed inspection. For example, by printing the PostScript file, the user can determine whether a signal was easily detectable or whether the data were corrupted. Certain data anomalies (saturation in the analog-to-digital converters, clipping in amplifiers ahead of the ADCs, receiver tuning errors, poor choices of receiver gain, etc.) can be readily seen in the plots. Each PostScript file is sized to fit on a single 8-1/2 x 11 inch page. Each landscape format page includes four panels showing a histogram of raw data (12-bit) samples (upper left), one-minute average power spectra derived from the raw samples (upper right), one-second averages of raw sample power versus time (lower left), and an extract of the first few lines of the source ODR PDS label (lower right). PostScript file names have the form ydddhhmm.PSc where y is the one-digit year (0-9) ddd is the three-digit day-of-year (001-366) hh is the two-digit hour (00-23) mm is the two-digit minute (00-59) c is the one digit receiver channel (1-4) The file names are chosen so that they match the ODR file names ydddhhmm.ODR. Note that, on the rare occasions when there were multiple recordings of the the same occultation, the mm component may be modified in one of the files so that file names are unique. Receiver channels (c) are generally defined as follows: receiver 1 was X-RCP, receiver 2 was S-RCP, receiver 3 was X-LCP, and receiver 4 was S-LCP. Normal MGS radio occultation operations used only X-RCP. Each panel was generated by MATLAB as a Level 1 PostScript file for black and white printers. The panels were then assembled into single page PostScript files using the psmulti utility, a PERL script written by D. Murray Laing. The computing platform was a Sun Ultra-2 running Solaris 2.5.1. MATLAB is a technical computing environment for computation and visualization distributed by The Math Works, Inc., Natick MA. MATLAB is a trademark of The Math Works, Inc. PostScript is a trademark of Adobe Systems, Inc." END_OBJECT = PS_DOCUMENT END