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HST Data Handbook for ACS

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Appendix A


Table A.1: ACS Distortion Correction Table (IDCTAB), Forward Direction.
Column Name WFC1 WFC2 HRC SBC
DETCHIP
1
2
1
1
DIRECTION
FORWARD
FORWARD
FORWARD
FORWARD
WAVELENGTH
5500
5500
5500
5500
XSIZE
4144
4144
1062
1024
YSIZE
2048
2048
1024
1024
XREF
2072
2072
531
512
YREF
1024
1024
512
512
V2REF
256.4158
254.2550
205.1358
205.1358
V3REF
237.0618
301.1133
470.1861
470.1861
THETA
-2.38
-1.94
-0.07
-0.07
SCALE
0.050
0.050
0.025
0.025
CX10
0.002032
0.001718
0.000030
0.000035
CX11
0.049160
0.049779
0.028415
0.033828
CX20
1.029E-07
9.929E-08
-3.998E-08
-5.666E-08
CX21
-3.527E-07
-2.541E-07
2.373E-07
3.363E-07
CX22
4.240E-07
4.316E-07
-1.047E-07
-1.484E-07
CX30
4.461E-12
-1.055E-13
9.507E-12
1.604E-11
CX31
-2.258E-11
-2.606E-11
-2.084E-11
-3.516E-11
CX32
-5.327E-12
-2.602E-12
6.676E-12
1.126E-11
CX33
-2.187E-11
-2.286E-11
-2.627E-11
-4.433E-11
CY10
4.895E-02
5.068E-02
2.469E-02
2.940E-02
CY11
2.231E-03
1.583E-03
2.804E-03
3.338E-03
CY20
-4.904E-07
-3.677E-07
2.771E-07
3.927E-07
CY21
2.955E-07
3.068E-07
-5.868E-08
-8.316E-08
CY22
-1.304E-07
-8.124E-08
3.675E-08
5.208E-08
CY30
-1.571E-11
-1.960E-11
6.095E-11
1.028E-10
CY31
-1.996E-12
-4.799E-12
-1.247E-11
-2.103E-11
CY32
-1.846E-11
-2.736E-11
3.535E-11
5.964E-11
CY33
3.686E-12
3.714E-12
2.432E-11
4.103E-11

 
Table A.2: ACS Distortion Correction Table (IDCTAB), Inverse Direction.
Column Name WFC1 WFC2 HRC SBC
DETCHIP
1
2
1
1
DIRECTION
INVERSE
INVERSE
INVERSE
INVERSE
WAVELENGTH
5500
5500
5500
5500
XSIZE
4144
4144
1062
1024
YSIZE
2048
2048
1024
1024
XREF
2072
2072
531
512
YREF
1024
1024
511
512
V2REF
256.4158
254.2550
205.1358
205.1358
V3REF
237.0618
301.1133
470.1861
470.1861
THETA
-2.38
-1.94
-0.07
-0.07
SCALE
0.050
0.050
0.025
0.025
CX10
-0.846292
-0.681682
-0.042390
-0.035607
CX11
20.380100
20.110660
35.196690
29.565220
CX20
-1.210E-03
-9.711E-04
2.347E-03
1.656E-03
CX21
3.544E-03
2.438E-03
-1.239E-02
-8.743E-03
CX22
-3.819E-03
-3.640E-03
5.774E-03
4.074E-03
CX30
-1.661E-06
-5.932E-07
-2.410E-05
-1.428E-05
CX31
6.068E-06
5.334E-06
6.023E-05
3.570E-05
CX32
-2.593E-06
-2.036E-06
-2.916E-05
-1.728E-05
CX33
5.391E-06
5.157E-06
4.436E-05
2.629E-05
CY10
2.047E+01
1.975E+01
4.050E+01
3.402E+01
CY11
-9.288E-01
-6.284E-01
-3.997E+00
-3.357E+00
CY20
4.386E-03
2.963E-03
-1.863E-02
-1.315E-02
CY21
-3.190E-03
-2.737E-03
8.422E-03
5.943E-03
CY22
1.420E-03
8.540E-04
-3.009E-03
-2.123E-03
CY30
4.717E-06
3.965E-06
-1.448E-04
-8.580E-05
CY31
-3.073E-06
-1.535E-06
5.913E-05
3.505E-05
CY32
5.338E-06
5.640E-06
-7.264E-05
-4.306E-05
CY33
-1.661E-06
-1.255E-06
-4.142E-05
-2.455E-05

 


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