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ACS-HRC-MOSAIC-BOX pointing patterns

ACS HRC Mosaic Box graph

This is a two-dimensional mosaic pattern, with the following allowable parameter ranges:

     Pattern_Number: 1 
       Pattern_Type: ACS-HRC-MOSAIC-BOX
    Pattern_Purpose: MOSAIC
   Number_Of_Points: 4
      Point_Spacing: 10.0 - 130.0 (arcseconds)
       Line_Spacing: 10.0 - 130.0 (arcseconds)
   Coordinate_Frame: POS-TARG
     Pattern_Orient: 0.0 - 360.0  (degrees)     
Angle_Between_Sides: 0.0 - 360.0  (degrees) 
     Center_Pattern: ?            (YES or NO)

The following versions of this Pattern_Type are projected onto the detector pixel space in the graphic above.

The default pattern...

     Pattern_Number: 27
       Pattern_Type: ACS-HRC-MOSAIC-BOX
    Pattern_Purpose: MOSAIC
   Number_Of_Points: 4
      Point_Spacing: 24.130
       Line_Spacing: 27.680
   Coordinate_Frame: POS-TARG
     Pattern_Orient: 90.00
Angle_Between_Sides: 96.00 *
     Center_Pattern: YES

* Note: the default Angle_Between_Sides is 
  actually 264 degrees, but it should be -264 
  degrees (or 360-264 = 96 degrees). This sign 
  error can be manually corrected in APT.

POS TARG equivalent:  -13.768, -13.476
                      -13.768,  10.654
                       13.768,  13.476
                       13.768, -10.654
Last Updated: 01/31/2024

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