urn:nasa:pds:magellan_bsr_calibrated:srf:4156134b 1.0 1.22.0.0 Product_Observational 2025-01-27 1.0 Product migrated to PDS4 from PDS3. 1994-06-05T13:41:31Z 1994-06-05T13:48:11Z Magellan Mission urn:nasa:pds:context:investigation:mission.magellan data_to_investigation Alias: Venus Radar Mapper Magellan Host urn:nasa:pds:context:instrument_host:spacecraft.mgn is_instrument_host Radio Science Subsystem Instrument urn:nasa:pds:context:instrument:mgn.rss is_instrument Venus Planet urn:nasa:pds:context:target:planet.venus data_to_target BSR 63 SUE SRF 4156134b.srf 2008-02-15T18:12:00 SPECTRUM 5200 1024 Average S-Band right-circularly polarized (RCP) noise power spectrum from raw data collected at the end of the bistatic radar observations on MAGELLAN orbit 13031 on 5 June 1994. 227 seconds of data were collected with the ground antenna aimed at Venus; these were transformed into 5542 1024-point power spectra which were then summed. Fifteen frequency bins (bins 873-887, centered on about 21500 Hz) contained a spacecraft signal which was removed by linear interpolation between bins 872 and 888. The resulting spectrum was then normalized so that values between about 3000 and 21000 Hz were in the range approximately 0.9-1.1; this result was then multiplied by the weighting factor 5542. 140 seconds of data were collected with the receiver connected to its ambient load. These were transformed into 3427 1024-point power spectra, summed, normalized to the approximate range 0.9-1.1, and then multiplied by the weighting factor 3427. The two weighted power spectra were then added and the sum was divided by 1E9 (an arbitrary choice). The spectrum includes effects of windowing added by the FNDLOOK program, which computes power spectra at Stanford. Carriage-Return Line-Feed FREQUENCY 24.4140625 Hz 0.0 24975.5859375 Linear 1 0 80 S-RCP NOISE SPECTRUM 1 1 ASCII_Real 12 1.0 0.0