PDS_VERSION_ID                     = PDS3
RECORD_TYPE                        = UNDEFINED
DATA_SET_ID                        = "RO-C-RPCIES-3-EXT1-V2.0"               
PRODUCT_CREATION_TIME              = 2013-03-28T13:30:00
PRODUCT_ID                         = "IES_MODES"
^PDF_DOCUMENT                      = "IES_MODES.PDF"

OBJECT                             = PDF_DOCUMENT
   DOCUMENT_NAME                   = "IES_MODES"
   PUBLICATION_DATE                = 2013-03-28
   DOCUMENT_TOPIC_TYPE             = "INSTRUMENT DESCRIPTION"
   INTERCHANGE_FORMAT              = "BINARY"
   DOCUMENT_FORMAT                 = "ADOBE PDF"
   ENCODING_TYPE                   = "PDF-ADOBE-1.4"
   ABSTRACT_TEXT                   = "
     These tables define the configuration of the present and past modes 
     used by IES to return data from the instrument."
  DESCRIPTION                      = "
     These tables define the configuration of the present and past modes 
     used by IES to return data from the instrument.

     To fit within the data rate allocated to the instrument, counts 
     acquired at discrete adjacent elevation steps (or angles), azimuths 
     (or anodes) or energy steps may be summed and telemetered as a single 
     value. Another option is to limit the ranges of the same parameters. 
     This configuration may be identical or different for the ION and ELC 
     products. Note that the instrument actually acquires full resolution 
     data at the entire range for all modes. These modes describe only how 
     the data are packaged for telemetry.

     Each mode has a unique Mode ID which is displayed in the data files, 
     a Cycle Duration that specifies the number of seconds required to 
     complete a full acquisition cycle, Rate which specifies whether the 
     mode can be used when IES is in a burst rate or normal data rate, 
     a Mode Table Number which is the IES internal memory slot number where 
     the table resides, an Uplink Date which is the date the mode was 
     available for use and a Replacement Date when the memory slot of the 
     mode was updated by a different mode.

     The remaining columns list the details of range and collapse of the 
     energy, azimuth and elevation steps for ION and ELC products - the 
     number of values returned, the step numbers (range) and in case of 
     energy, the corresponding values in electron-volts, and the number 
     of bins summed together.

     In the data files, these values are displayed as summed for energies 
     and elevation along with step ranges. For azimuths, since the number 
     of columns is fixed at 16, the values are divided by the number of 
     summed azimuths.

     Cycling of ESA voltages is completed using 128 steps (0 to 127) which 
     include 4 steps (124 to 127) during 'flyback' (FB), the transition from 
     the highest voltage of 1667 V (step 123) to 0 V (step 127). The actual 
     transition time does not require all 4 steps, just one step. So science 
     data readings during the first step of the flyback, 124 (FB1) should be 
     considered unreliable to measure the background counts. Steps 125 (FB2) 
     and 126 (FB3) may be considered as 0V for background measurements if not
     combined with other steps.

     Initial flight measurements indicated a high level of noise counts in 
     ELC Azimuth #11. In 2007, all mode tables were updated to discard counts
     from this channel. Subsequently, Azimuth #12 became noisy as well and 
     it was removed from all tables in 2014. If a mode returns counts 
     averaged across multiple azimuths, the counts in Azimuths 11 and 12 are
     excluded from the average. In the mode table, when the number of 
     combined ELC azimuths is displayed, an asterisk, '*' is appended to 
     indicate that sector 11 is excluded and a double asterisk, '**' is 
     appended to indicate both 11 and 12 are excluded."

END_OBJECT                         = PDF_DOCUMENT

END