ACS-HRC-MOSAIC-BOX
pointing patterns
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