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             = "C26_TRIG_76"                                        
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_76.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 76."        
END_OBJECT           = TEXT                                                   
END                                                                           
                                                                              
                                                                              
Trigger 76 Description                                                        
                                                                              
Sequence: C21, etc.                                                           
                                                                              
Trigger 76 ( Titan low-rate Langmuir Probe Mode )                             
                                                                              
This mode is designed to provide a survey mode, with standard temporal        
resolution and spectral resolution, and with increased Langmuir Probe         
measurements designed for Titan flybys.  High-frequency WFR measurements are  
made. Langmuir Probe sweeps are performed every 16 seconds using the down-up  
ramp bias function. Between the 1-second sweeps, 20-Hz LP density             
measurements are done. No Sounder or Dust measurements are made.  The HFR is  
in Composite Mode Survey. During Cruise, this mode has been used periodically 
to monitor Spacecraft potential and photoelectrons.                           
                                                                              
Receiver  Frequency Range   Sensors         Time between Snapshots            
--------  ----------------  --------------  ----------------------            
LFR       1 - 25 Hz         EX, BX          32 seconds                        
MFR       25 - 12 KHz       EX, BZ          32 seconds                        
WFR       0.1 - 2.5 KHz     EX,EW,BX,BY,BZ  320 seconds                       
HFR       3.6 KHz - 16 MHz  EX, EW          10.375 seconds                    
LP        N/A               Langmuir Probe  16 seconds                        
                                                                              
The HFR is in a modified "Composite Survey" mode, which now includes          
both auto- and cross-correlations for H1. Prior to C28, this mode             
did not include auto-correlations for H1.                                     
This mode is defined by:                                                      
                                                                              
          Correlations Channels    Integ.           Size Frequency            
Band Ant. Auto- Cross- per Band df Period Rep Steps kHz  Start - Stop         
---- ---- ----- ------ -------- -- ------ --- ----- ---- ------------         
ABC  2E   y        y     16     n  1000   1              3.6-319 kHz          
H1   2E   y        y      2     n  80     1   60    25   325k-1.8MHz          
H2   1E   n        n      1     n  20     1   72    200  1.8M-16MHz           
                                                                              
Bands ABC require 3.16 sec to complete, H1 requires 5.47 sec, and H2 requires 
1.46 sec for a total of  10.09 sec per sweep. However, a small amount of      
additional time is required for commanding and data formatting, resulting in  
a 10.375 cycle time.