/* Lunar Orbiter (LO) Local Data Dictionary        */
/* New keywords for LO Archives                    */
/* 12May2010 C. Isbell                             */
/* 01Oct2010 C. Isbell                             */

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:FILMSTRIP_SCAN_CREATION_DATE"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = DATE
  UNIT_ID = NONE
  STANDARD_VALUE_TYPE = TEXT
  DESCRIPTION = "The date when an existing LO filmstrip was 
scanned on a flatbed image scanner for creation of images 
for eventual inclusion within this archive."
END_OBJECT = ELEMENT_DEFINITION
END

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:FILMSTRIP_SCAN_RESOLUTION"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = INTEGER
  UNIT_ID = UM
  STANDARD_VALUE_TYPE = STATIC
  DESCRIPTION = "Flatbed scanner capture resolution setting 
at time of filmstrip scan (e.g. 25 <micron>)."
END_OBJECT = ELEMENT_DEFINITION
END

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:FILMSTRIP_SCAN_PROCESSING_RES"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = INTEGER
  UNIT_ID = UM
  STANDARD_VALUE_TYPE = STATIC
  DESCRIPTION = "Resolution of scanned image product during 
processing (e.g. 50 <micron>). Possibly at reduced 
resolution relative to FILMSTRIP_SCAN_RESOLUTION."
END_OBJECT = ELEMENT_DEFINITION
END

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:FIDUCIAL_ID"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = CHARACTER
  UNIT_ID = NONE
  STANDARD_VALUE_TYPE = TEXT
  DESCRIPTION = "The identifier for the nominal 'sawtooth' 
fiducial locations measured on this mosaicked frame.  
Fiducial marks are designed as right triangles having 45 
deg acute angles and were placed in spaced intervals across 
the top and bottom edges of the camera frame.  The basic 
frame of reference for each Lunar Orbiter camera is the 
series of these fiducial marks.  A number of fiducials are 
measured at the corner intersections with the frame edge.  
Fiducials are numbered across with the odd numbers on the 
bottom and even numbers on the top (along the film edge 
data).  Fiducial Ids for the top of a frame start with 2a, 
2b, 4a, 4b, etc. up to 286a, 286 b for the high resolution 
camera and up to 84a, and 84b for the medium resolution 
camera.  Fiducial Ids for the bottom of a frame start with 
1a, 1b, 3a, 3b, up to 285a, 285b for the high resolution 
camera and up to 83a and 83b for the medium resolution 
camera.  The letter 'a' in the identifier is used to 
designate the 90 deg corner (right angle) of a fiducial and 
the letter 'b' designates the 45 deg corner (base angle). 
Only measured fiducials are listed under this keyword 
[19XX]."
END_OBJECT = ELEMENT_DEFINITION
END

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:FIDUCIAL_SAMPLES"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = REAL
  UNIT_ID = NONE
  STANDARD_VALUE_TYPE = RANGE
   MINIMUM = 0
   MAXIMUM = 11800
  DESCRIPTION = "The sample (column or x) position of a 
measured fiducial mark at the intersection of the edge of a 
mosaicked frame.  For the high resolution camera, this 
coordinate is computed in reference to the full frame based 
on the fiducials coordinates measured on each sub-frame 
[19XX]."
END_OBJECT = ELEMENT_DEFINITION
END

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:FIDUCIAL_LINES"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = REAL
  UNIT_ID = NONE
  STANDARD_VALUE_TYPE = RANGE
   MINIMUM = 0
   MAXIMUM = 8750
  DESCRIPTION = "The line (row or y) position of a measured 
fiducial mark at the intersection of the edge of a 
mosaicked frame. For the high resolution camera, this 
coordinate is computed in reference to the full frame based 
on the fiducials coordinates measured on each sub-frame 
[19XX]." 
END_OBJECT = ELEMENT_DEFINITION
END

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:FIDUCIAL_COORDINATE_MICRON"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = INTEGER
  UNIT_ID = NM
  STANDARD_VALUE_TYPE = STATIC
  DESCRIPTION = "The micron resolution of the mosaicked 
frame on which the fiducial mark positions are measured.  
The film strip data was scanned at 25-microns and later 
scaled down by a factor of two during processing to 
construct into a 50-micron frame [19XX]."
END_OBJECT = ELEMENT_DEFINITION
END

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:FIDUCIAL_X_COORDINATES"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = REAL
  UNIT_ID = MM
  STANDARD_VALUE_TYPE = RANGE
   MINIMUM = -200
   MAXIMUM = 200
  DESCRIPTION = "The nominal millimeter (mm) x coordinates 
for the fiducials measured on this mosaicked frame.  For 
the high resolution camera, this coordinate is computed in 
reference to the full frame based on the fiducials 
coordinates measured on each sub-frame.  The nominal 
positions are documented in the Camera Calibration Report 
for each mission and camera [19XX]."
END_OBJECT = ELEMENT_DEFINITION
END

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:FIDUCIAL_Y_COORDINATES"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = REAL
  UNIT_ID = MM
  STANDARD_VALUE_TYPE = RANGE
   MINIMUM = -50
   MAXIMUM = 50
  DESCRIPTION = "The nominal millimeter (mm) y coordinates 
for the fiducials measured on this mosaicked frame. For the 
high resolution camera, this coordinate is computed in 
reference to the full frame based on the fiducials 
coordinates measured on each sub-frame.  The nominal 
positions are documented in the Camera Calibration Report 
for each mission and camera [19XX]."
END_OBJECT = ELEMENT_DEFINITION
END

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:BORESIGHT_SAMPLE"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = INTEGER
  UNIT_ID = NONE
  STANDARD_VALUE_TYPE = RANGE
   MINIMUM = 0
   MAXIMUM = 11800
  DESCRIPTION = "The sample (column or x) position of 
x=0.0, y=0.0 in the medium resolution camera focal plane.  
This keyword only pertains to medium camera observations 
that did not expose the fiducial marks that exist at the 
top and bottom edges of the camera frame.  Sufficient 
measurable fiducials were often available in the medium 
resolution frames, but an alternate method for establishing 
a reference frame for the medium frames without exposed 
fiducials was established by 'piggy-backing' to the 
simultaneously exposed high resolution camera frame. This 
position is calculated from the high resolution fiducial 
center measured and a known offset listed in the Camera 
Calibration Reports for the Lunar Orbiters [19XX]. The 
boresight position is needed for accurate geometric 
rectification of frames and for defining the point of 
symmetry for correcting radial distortion in the images."
END_OBJECT = ELEMENT_DEFINITION
END

OBJECT = ELEMENT_DEFINITION
  NAME = "LO:BORESIGHT_LINE"
  STATUS_TYPE = PROPOSED
  GENERAL_DATA_TYPE = INTEGER
  UNIT_ID = NONE
  STANDARD_VALUE_TYPE = RANGE
   MINIMUM = 0
   MAXIMUM = 8750
  DESCRIPTION = "The line (row or y) position of x=0.0, 
y=0.0 in the medium resolution camera focal plane.  This 
keyword only pertains to medium camera observations that 
did not expose the fiducial marks that exist at the top and 
bottom edges of the camera frame.  Sufficient measurable 
fiducials were often available in the medium resolution 
frames, but an alternate method for establishing a 
reference frame for the medium frames without exposed 
fiducials was established by 'piggy-backing' to the 
simultaneously exposed high resolution camera frame.  This 
position is calculated from the high resolution fiducial 
center measured and a known offset listed in the Camera 
Calibration Reports for the Lunar Orbiters [19XX]. The 
boresight position is needed for accurate geometric 
rectification of frames and for defining the point of 
symmetry for correcting radial distortion in the images."
END_OBJECT = ELEMENT_DEFINITION
END