OBJECT = ELEMENT_DEFINITION
  NAME = "GEO:BAUD"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = ASCII_REAL
  UNIT_ID = MICROSECOND
  STANDARD_VALUE_TYPE = RANGE
  DESCRIPTION = "
     The time spacing (microseconds) between individual elements of the 
     pseudo-random noise (PN) code. Typically 4, 8, or 16 microseconds for 
     Venus observations."
END_OBJECT = ELEMENT_DEFINITION
END


OBJECT = ELEMENT_DEFINITION
  NAME = "GEO:TRANSFORM_LENGTH"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = ASCII_INTEGER
  UNIT_ID = 'N/A'
  STANDARD_VALUE_TYPE = RANGE
  DESCRIPTION = "
     The number of individual code cycles used to form the delay-Doppler 
     image. Typically the integer power of two corresponding to an 
     approximate five-minute length for each look (4096 for 8-microsecond 
     data, 8192 for 4-microsecond data)."
END_OBJECT = ELEMENT_DEFINITION
END


OBJECT = ELEMENT_DEFINITION
  NAME = "GEO:CODE_LENGTH"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = ASCII_INTEGER
  UNIT_ID = 'N/A'
  STANDARD_VALUE_TYPE = RANGE
  DESCRIPTION = "
     The integer number of single-baud samples in the PN code, always one 
     less than a power of two. The interpulse period (seconds) is thus 
     CODE_LENGTH times BAUD."
END_OBJECT = ELEMENT_DEFINITION
END


OBJECT = ELEMENT_DEFINITION
  NAME = "GEO:CENTROID_LOCATION"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = ASCII_INTEGER
  UNIT_ID = 'N/A'
  STANDARD_VALUE_TYPE = RANGE
  DESCRIPTION = "
     The integer column location in the image corresponding to the nominal 
     zero-Doppler location of the sub-radar point on Venus."
END_OBJECT = ELEMENT_DEFINITION
END


OBJECT = ELEMENT_DEFINITION
  NAME = "GEO:DELAY_OFFSET"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = ASCII_INTEGER
  UNIT_ID = 'N/A'
  STANDARD_VALUE_TYPE = RANGE
  DESCRIPTION = "
     The offset of the delay location of the sub-radar point on Venus from 
     the first row of the image, expressed as an integer multiple of the 
     baud. The delay location of the sub-radar point is obtained from the 
     ephemerides used during the observations."
END_OBJECT = ELEMENT_DEFINITION
END


OBJECT = ELEMENT_DEFINITION
  NAME = "GEO:PARALLACTIC_ANGLE_CORRECTION"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = ASCII_INTEGER
  UNIT_ID = 'N/A'
  STANDARD_VALUE_TYPE = STATIC
  MINIMUM = 0
  MAXIMUM = 1
  DESCRIPTION = "
     A flag to indicate whether the raw data were corrected for the variation 
     of parallactic angle during range compression. This is a necessary step 
     for production of Stokes vector products from the raw images.
     (0 = No corrections have been made)
     (1 = The parallactic angle rotation has been compensated over each 
     day's observations)."
END_OBJECT = ELEMENT_DEFINITION
END


OBJECT = ELEMENT_DEFINITION
  NAME = "GEO:POINTING"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = CHARACTER
  UNIT_ID = 'N/A'
  STANDARD_VALUE_TYPE = STATIC
  DESCRIPTION = "The hemisphere of Venus ('N' for North or 'S' for South) 
  towards which the radio telescopes were pointed (offset) during the data 
  collection period."
END_OBJECT = ELEMENT_DEFINITION
END


OBJECT = ELEMENT_DEFINITION
  NAME = "GEO:MODE"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = CHARACTER
  UNIT_ID = 'N/A'
  STANDARD_VALUE_TYPE = STATIC
  DESCRIPTION = "The mode of transmit and receive configuration ('M' for 
  Arecibo-to-Arecibo monostatic, or 'B' for Arecibo-to-Green Bank Telescope 
  bistatic)."
END_OBJECT = ELEMENT_DEFINITION
END