PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2015-12-31 NOTE = "Description of the contents of the beam dir. History: 2016-01 BTCarcich Initial version " END_OBJECT = TEXT END This DOCUMENT/BEAM/ directory contains the antenna beam pattern response data for the New Horizons (NH) High Gain Antenna (HGA), as measured by NH Radioscience EXperiment (REX) Radiometry. REX Side A was used to measure the Right Circular Polarized (RCP) beam pattern response of the HGA before launch. Refer to the ground test report in this directory for details. The data cover a square area centered on the +Y spacecraft axis out to +/-2 degrees in the X and Z directions. REX Side B was used to measure the Left Circular Polarized (LCP) beam pattern response of the HGA before launch. The spacecraft +Y axis, new the HGA boresight, was scanned across earth while a constant signal was radiated from the Deep Space Network (DSN) as part of NH sequence REX008b. The spacecraft attitude control deadband was set to a relatively large value so the data are noisier than the ground-based RCP plot. The data cover a square area cetnered on the +Y spacecraft axis out to +/-1 degree in the X and Z directions. Directory Manifest ================== DOCUMENT/ | +-->BEAM/ | +--> NH_HGA_LCP_RESP_REX008B.LBL PDS label for LCP beam pattern +--> NH_HGA_LCP_RESP_REX008B.CSV LCP beam pattern data +--> NH_HGA_LCP_RESP_REX008B.PNG LCP beam pattern surface plot image | +--> NH_HGA_RCP_RESP_PRELAUNCH.LBL PDS label for RCP beam pattern +--> NH_HGA_RCP_RESP_PRELAUNCH.CSV RCP beam pattern data +--> NH_HGA_RCP_RESP_PRELAUNCH.PNG RCP beam pattern surface plot image | +--> NH_HGA_PATTERN_WIDE_ANGLE.LBL PDS label for ground data pattern +--> NH_HGA_PATTERN_WIDE_ANGLE.CSV Ground data beam pattern | +--> NH_HGA_TESTREPORT_FINALR1.LBL PDS label for ground test report +--> NH_HGA_TESTREPORT_FINALR1.PDF Ground test report, PDF/A-1a format | +--> BEAMINFO.TXT This file