This is a one-dimensional mosaic pattern, with the following allowable parameter ranges:
Pattern_Number: 1 Pattern_Type: ACS-WFC-MOSAIC-LINE Pattern_Purpose: MOSAIC Number_Of_Points: 2-9 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 is a compromise between increasing the field-of-view (to ~200x300 arcseconds) and covering the interchip gap -- all with the same guide stars.
Pattern_Number: Pattern_Type: ACS-WFC-MOSAIC-LINE Pattern_Purpose: MOSAIC Number_Of_Points: 2 Point_Spacing: 96.231 Line_Spacing: 0. Coordinate_Frame: POS-TARG Pattern_Orient: 90.0 Angle_Between_Sides: N/A Center_Pattern: YES
POS TARG equivalent: 0.000, -48.116 0.000, 48.116