TELEMETRY PACKET STATUS BIG_ENDIAN "Health and status from the instrument"
  ITEM CCSDSVER           0  3 UINT     "CCSDS packet version number (See CCSDS 133.0-B-1)"
  ITEM CCSDSTYPE          3  1 UINT     "CCSDS packet type (command or telemetry)"
    STATE TLM 0
    STATE CMD 1
  ITEM CCSDSSHF           4  1 UINT     "CCSDS secondary header flag"
    STATE FALSE 0
    STATE TRUE 1
  ID_ITEM CCSDSAPID       5 11 UINT   1 "CCSDS application process id"
  ITEM CCSDSSEQFLAGS     16  2 UINT     "CCSDS sequence flags"
    STATE FIRST 1
    STATE CONT 0
    STATE LAST 2
    STATE NOGROUP 3
  ITEM CCSDSSEQCNT       18 14 UINT     "CCSDS packet sequence count"
    OVERFLOW TRUNCATE
  ITEM CCSDSLENGTH       32 16 UINT     "CCSDS packet data length"
  ITEM TIMESEC           48 32 UINT     "Seconds since epoch (January 1st, 1970, midnight)"
  ITEM TIMEUS            80 32 UINT     "Microseconds of second"
  ID_ITEM PKTID         112 16 UINT   1 "Packet id (The combination of CCSDS_APID and PACKET_ID identify the packet)"
  APPEND_ITEM COLLECTS 16 UINT     "Number of collects"
  MACRO_APPEND_START 1 10 "%s_%d"
    APPEND_ITEM TEMP1 16 UINT     "Temperature #1"
      POLY_READ_CONVERSION  -100.0 0.00305
      POLY_WRITE_CONVERSION 32768.885246 327.86885
      UNITS CELCIUS C
      FORMAT_STRING "%0.3f"
      LIMITS DEFAULT 1 ENABLED -80.0 -70.0 60.0 80.0 -20.0 20.0
      LIMITS TVAC 1     ENABLED -80.0 -30.0 30.0 80.0
      LIMITS_RESPONSE packet_limits_response.rb
    APPEND_ITEM TEMP2 16 UINT     "Temperature #2"
      POLY_READ_CONVERSION -100.0 0.00305
      POLY_WRITE_CONVERSION 32768.885246 327.86885
      UNITS CELCIUS C
      FORMAT_STRING "%0.3f"
      LIMITS DEFAULT 1 ENABLED -60.0 -55.0 30.0 35.0
      LIMITS TVAC 1 ENABLED -60.0 20.0 30.0 35.0
    APPEND_ITEM TEMP3 16 UINT     "Temperature #3"
      POLY_READ_CONVERSION -100.0 0.00305
      POLY_WRITE_CONVERSION 32768.885246 327.86885
      UNITS CELCIUS C
      FORMAT_STRING "%0.3f"
      LIMITS DEFAULT 1 ENABLED -25.0 -10.0 50.0 55.0
      LIMITS TVAC 1 ENABLED -15.0 -10.0 20.0 30.0
    APPEND_ITEM TEMP4 16 UINT     "Temperature #4"
      POLY_READ_CONVERSION -100.0 0.00305
      POLY_WRITE_CONVERSION 32768.885246 327.86885
      UNITS CELCIUS C
      FORMAT_STRING "%0.3f"
      LIMITS DEFAULT 1 ENABLED -80.0 -70.0 60.0 80.0
  MACRO_APPEND_END
  APPEND_ARRAY_ITEM ARY 8 UINT 80 "Array data"
    UNITS VOLTS V
  APPEND_ITEM DURATION 32 FLOAT "Most recent collect duration"
  APPEND_ITEM DURATION_CONVERT 32 UINT "DURATION converted by a generic conversion"
    GENERIC_READ_CONVERSION_START
      result = myself.read('DURATION', :RAW)
      return result * 1.5
    GENERIC_READ_CONVERSION_END
  APPEND_ITEM COLLECT_TYPE 16 UINT "Most recent collect type"
    STATE NORMAL  0
    STATE SPECIAL 1
  APPEND_ARRAY_ITEM ARY2      64 FLOAT 640 "Double array"
    UNITS CELCIUS C
  APPEND_ITEM ASCIICMD 2048 STRING "Most recent ASCIICMD string"
    STATE "NOOP" "NOOP"
    STATE "FIRE LASER" "FIRE LASER"
    STATE "ARM LASER" "ARM LASER"
  APPEND_ITEM GROUND1STATUS 8 UINT "Ground station #1 status"
    STATE CONNECTED 1 GREEN
    STATE UNAVAILABLE 0 YELLOW
  APPEND_ITEM GROUND2STATUS 8 UINT "Ground station #2 status"
    STATE CONNECTED 1 GREEN
    STATE UNAVAILABLE 0 YELLOW
  APPEND_ITEM BLOCKTEST 80 BLOCK "Block data"
  MACRO_APPEND_START 1 10 "%s_%d"
    APPEND_ARRAY_ITEM ARRAY 32 FLOAT 320 "Array of 10 floats"
  MACRO_APPEND_END
  APPEND_ITEM STRING 0 STRING "Time string"
  ITEM TIMESECONDS 0 0 DERIVED "Derived floating-point time since epoch in seconds"
    READ_CONVERSION unix_time_seconds_conversion.rb TIMESEC TIMEUS
    FORMAT_STRING '%0.6f'
  ITEM TIMEFORMATTED 0 0 DERIVED "Derived time since epoch as formatted string"
    READ_CONVERSION unix_time_formatted_conversion.rb TIMESEC TIMEUS
  ITEM TEMP1HIGH 0 0 DERIVED "High-water mark for TEMP1"
    READ_CONVERSION processor_conversion.rb TEMP1WATER HIGH_WATER
  ITEM TEMP1LOW 0 0 DERIVED "Low-water mark for TEMP1"
    READ_CONVERSION processor_conversion.rb TEMP1WATER LOW_WATER
  ITEM TEMP1MAX 0 0 DERIVED "Maximum of most recent 100 samples for TEMP1"
    READ_CONVERSION processor_conversion.rb TEMP1STAT MAX
  ITEM TEMP1MIN 0 0 DERIVED "Minimum of most recent 100 samples for TEMP1"
    READ_CONVERSION processor_conversion.rb TEMP1STAT MIN
  ITEM TEMP1MEAN 0 0 DERIVED "Mean of most recent 100 samples for TEMP1"
    READ_CONVERSION processor_conversion.rb TEMP1STAT MEAN
  ITEM TEMP1STDDEV 0 0 DERIVED "Stddev of most recent 100 samples for TEMP1"
    READ_CONVERSION processor_conversion.rb TEMP1STAT STDDEV
  PROCESSOR TEMP1STAT statistics_processor.rb TEMP1_1 100
  PROCESSOR TEMP1WATER watermark_processor.rb TEMP1_1