PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM DATA_SET_ID = {"CO-V/E/J/S/SS-RPWS-4-SUMM-KEY60S-V1.0", "CO-V/E/J/S/SS-RPWS-2-REFDR-ALL-V1.0", "CO-V/E/J/S/SS-RPWS-3-RDR-LRFULL-V1.0", "CO-V/E/J/S/SS-RPWS-2-REFDR-WBRFULL-V1.0", "CO-V/E/J/S/SS-RPWS-2-REFDR-WFRFULL-V1.0"} PRODUCT_ID = "C14_TRIG_78" PRODUCT_VERSION_ID = "1.00" PRODUCT_TYPE = ANCILLARY INSTRUMENT_HOST_NAME = "CASSINI ORBITER" INSTRUMENT_HOST_ID = CO INSTRUMENT_NAME = "RADIO AND PLASMA WAVE SCIENCE" INSTRUMENT_ID = RPWS OBJECT = TEXT PUBLICATION_DATE = 2005-03-17 NOTE = " TRIG_78.TXT describes the RPWS instrument configuration for the High Frequency Receiver (HFR), the Medium Frequency Receiver (MFR), the Low Frequency Receiver (LFR), the Waveform Receiver (WFR), the Wideband Receiver (WBR), the Langmuir Probe (LP), the Sounder, and the onboard Dust detection algorithm when using Trigger 78." END_OBJECT = TEXT END Trigger 78 Description Sequence: C14 (Venus-2) (ESB) Trigger 78 (Venus-2 Observation Continuation) This mode allows the instrument to re-enter the mode initiated by Trigger 74 without the setup time of Trigger 74. This trigger must only be sent after Trigger 74, and has the same instrument settings as Trigger 74. The HFR is allowed to free run, and the HFR data is NOT compressed. LFR, MFR, and WFR data are also collected, resulting in the entire RPWS frequency range (1 Hz - 16 MHz) to be covered. Receiver Frequency Range Sensors Time between Snapshots -------- ---------------- ------------------ ---------------------- LFR 1 - 25 Hz EX, BX 16 seconds MFR 25 - 12 KHz EX, BZ 32 seconds WFR .1 - 2.5 KHz EX, EW, BX, BY, BZ 342 seconds HFR 3.6 KHz - 16 MHz EX 32 seconds The HFR is in a special Venus-2 Lightning Scan mode. This mode is defined by: Correlations Channels Integ. Size Frequency Band Ant. Auto- Cross- per Band df Period Rep Steps kHz Start - Stop ---- ---- ----- ------ -------- -- ------ --- ----- ---- ------------ ABC 1E y n 32 n 125 1 3.6 kHz-319 kHz H1 1E n n 1 n 20 1 12 350 125 kHz-3.975 MHz H2 1E n n 1 n 10 1 8 1500 5.47 5MHz-15.975 MHz The HFR is free-running, resulting in: Bands ABC require 0.242 sec to complete, H1 requires 0.242 sec, and H2 requires 0.098 sec for a total of 2.33 sec per sweep. However, the HFR actually only performs one complete sweep every 2.5 seconds.