CCSD3ZF0000100000001NJPL3IF0PDSX00000001 PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = DATA_SET DATA_SET_ID = "ULY-J-URAP-4-SUMM-RAR-AVG-E-10MIN-V1.0" OBJECT = DATA_SET_INFORMATION DATA_SET_NAME = "ULY JUP URAP RADIO ASTRONOMY REC AVERAGE E-FIELD 10 MIN" DATA_SET_COLLECTION_MEMBER_FLG = N START_TIME = 1991-11-26T00:00:00.000Z STOP_TIME = 1992-06-07T23:50:00.000Z DATA_SET_RELEASE_DATE = 1998-05-01 PRODUCER_FULL_NAME = "ROGER HESS" DETAILED_CATALOG_FLAG = N DATA_OBJECT_TYPE = "TIME SERIES" DATA_SET_DESC = " Data Set Overview ================= A UDS data files Eight files are provided that conform to the UDS conventions regarding the naming of files and the format of the data. The eight files are divided into 4 pairs of files with each pair consisting of a file containing data averaged over a 10 minute period and a file containing the maximum data value during the same 10 minute period. The 4 pairs of file contain data for the RAR, the PFR, WFA - magnetic field, and WFA - magnetic field. A.1 Radio Astronomy Receiver To reduce the size of the files produced, the UDS files contain 25 frequency channels for the RAR - the upper 12 frequencies of the high receiver, and 13 lower frequencies which are aggregates of the low frequency channels so that they appear in approximately the same logarithmic steps as the high frequency receiver. Since the low frequency receiver steps are linear, there are different numbers of frequency channels that are combined to produce the UDS data. Following is a table giving the approximate center frequency of each UDS channel and the RAR frequencies that were combined to produce it. UDS center RAR frequency channel frequency channels (kHz) (kHz) 1 1.25 1.25 Low receiver 2 2.00 2.00 3 2.75 2.75 4 3.50 3.50 5 4.25 4.25 6 5.75 5.00 - 6.5 7 8.00 7.25 - 8.75 8 11.0 9.50 - 12.5 9 14.75 13.25 - 16.25 10 19.25 17.00 - 21.50 11 24.50 22.25 - 26.75 12 31.25 27.50 - 35.00 13 42.50 35.75 - 48.50 14 52.0 52.0 High receiver 15 63.0 63.0 16 81.0 81.0 17 100.0 100.0 18 120.0 120.0 19 148.0 148.0 20 196.0 196.0 21 272.0 272.0 22 387.0 387.0 23 540.0 540.0 24 740.0 740.0 25 940.0 940.0 Two files are produced for each day: they contain averages and peak values for 10 minute periods that start at 00:00:00 and end at 24:00:00. The time specified in the file is the beginning of each time period. The data are computed as follows: For all RAR data that falls within the 10 minute period being considered the average and peak values are found for each of the 76 channels. Next the channels are combined to produce the 25 UDS channels: the average of the combined channels yields the UDS averages and the peak of the combined channels yields the UDS peak value. Data ==== The names of the files are (following the PDS convention): Tyyddd.TAB : Average data Tyyddd.TAB : Peak data where: yy = Last two digits of year. ddd = Day of year (001..366). The files are Ascii and contain one line for each time period (even if there are no valid data for a time period) so they contain 144 lines each. The format of the data is indicated by the following Fortran read statement which can be used to read the files: DIMENSION F(25) READ(1,100) TIME,MODE_HI,MODE_LO,IBPS,F 100 FORMAT(A24,1X,A2,A1,A1,25(1X,1PE9.2)) where: TIME: Spacecraft event time in the format yyyy-mm-ddThh:mm:ss.sssZ. MODE_HI: mode of the high receiver: 1: Receiver in summed mode (X and Z antenna combined). 2: Receiver in separate mode(only X antenna). 3: Receiver switched mode during averaging period. 4: Receiver mode unknown. MODE_LO: mode of the low receiver 1: Receiver in summed mode (X and Z antenna combined). 2: Receiver in separate mode (only X antenna). 3: Receiver switched mode during averaging period. 4: Receiver mode unknown. IBPS: telemetry bits-per-second 1: 128 bps. 2: 256 bps. 3: 512 bps. 4: 1024 bps. 5: Bit rate changed during averaging period. 6: Bit rate unknown. F: frequency data - channels 1..25 as defined above. Invalid or missing data are assigned the value -9.99e+10. Units: microvolt/Hz**.5 measured at the receiver input terminals. To convert to electric field strength the given data must be divided by the effective length of the antenna. This is complicated by the fact that the effective length depends on the antenna impedance which is affected by the plasma conditions local to the Ulysses spacecraft. The impedance will also depend on the frequency. In general, the RAR frequency channels that are well above the local electron plasma frequency are not affected by the plasma conditions and the effective length of 23 meters can be used. When the RAR is in summed, rather than separate, mode the determination of field strengths is even more difficult. Time resolution: 10 minutes." CONFIDENCE_LEVEL_NOTE = " Confidence Level Overview ========================= Some confidence level information is provided in the Data Set Overview. For more information regarding the confidence level of this data set please contact: ROGER HESS NASA/Goddard Space Flight Center Mailstop 690.2 Greenbelt, MD 20771 USA Phone: 1-301-286-1394 Internet: hess@urap.gsfc.nasa.gov" END_OBJECT = DATA_SET_INFORMATION OBJECT = DATA_SET_TARGET TARGET_NAME = JUPITER END_OBJECT = DATA_SET_TARGET OBJECT = DATA_SET_HOST INSTRUMENT_HOST_ID = ULY INSTRUMENT_ID = URAP END_OBJECT = DATA_SET_HOST OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "BARROW&LECACHEUX1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "CANUETAL1992" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "CANUETAL1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "DESCH1994" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "DESCHETAL1994" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "FARRELLETAL1993A" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "FARRELLETAL1993B" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "HOANGETAL1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "KAISER&DESCH1992" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "KAISERETAL1992" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "KAISER1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "KAISERETAL1993A" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "KAISERETAL1993B" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "KELLOGGETAL1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "LECACHEUXETAL1992" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "LINETAL1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "LINETAL1994" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "MACDOWALLETAL1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "MEYER-VERNETETAL1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "OSHEROVICHETAL1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "REINERETAL1993A" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "REINERETAL1993B" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "REINERETAL1994" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "STONEETAL1992B" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "THIESSEN&KELLOGG1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "ZARKAETAL1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION END_OBJECT = DATA_SET END