# Pupil Table : acswfc2.pup # Do not change the order of these entries! # Date : Sept 2000 # Advanced Camera for Surveys WFC2 information #---------------------------------------------------------------------------- # # Optical Telescope Assembly pupil information # 0.330 = OTA Secondary Mirror Radius 0.022 = OTA Spider Width # # Mirror pad positions and radii # 0.8921 0.0000 0.065 = OTA Pad 1 (V3, V2, Pad Radius) -0.4615 0.7555 0.065 = OTA Pad 2 -0.4564 -0.7606 0.065 = OTA Pad 3 # # # 100 1200 = ACS WFC CCD min, max detector wavelength (nm) -90.0 = Wide Field Channel image axis rotation 0.0495 = Wide Field Channel nominal pixel size (arcsec) # # ACS WFC field dependent aberration coefficients (in microns) # # Focus # -3.10355e-05 2.88597e-06 -3.06194e-09 -3.26703e-13 -2.88221e-06 -1.44988e-09 6.19984e-13 -1.43394e-17 -3.06391e-09 -6.19675e-13 2.79094e-17 6.37390e-21 3.25905e-13 -1.42806e-17 -6.36185e-21 -3.20259e-25 # # X astig # -1.78390e-05 -6.19094e-06 5.28219e-09 9.07821e-13 6.18277e-06 1.03441e-09 -1.12690e-12 1.16345e-17 5.28360e-09 1.12761e-12 -1.04899e-17 -9.29440e-21 -9.06350e-13 1.15938e-17 9.26584e-21 6.59397e-25 # # Y astig # -2.31049e-08 -3.19840e-06 -5.49552e-09 7.66326e-13 -3.20254e-06 -1.44625e-11 6.73792e-13 4.04431e-18 5.49552e-09 6.72542e-13 8.23203e-21 -2.49313e-21 7.67193e-13 -4.02621e-18 -2.49725e-21 -2.69680e-27 # # X coma # -4.05868e-08 -2.41418e-06 5.71966e-10 6.20312e-14 -2.41736e-06 1.54049e-12 8.43852e-14 -5.16680e-19 -5.71947e-10 8.43779e-14 -1.90624e-21 -1.55480e-22 6.21448e-14 4.92566e-19 -1.51693e-22 3.60761e-27 # # Y coma # -2.99233e-06 -1.71739e-06 -8.04798e-10 -5.82759e-14 1.71517e-06 7.72895e-10 5.02908e-14 -7.02788e-19 -8.03787e-10 -5.04188e-14 4.23878e-19 2.33193e-22 5.82023e-14 -7.02946e-19 -2.23721e-22 -4.81061e-26 # # X clover # -8.85735e-09 -7.57031e-07 1.31722e-10 -6.90422e-15 -7.58031e-07 3.83778e-13 8.37598e-15 4.77316e-19 -1.31693e-10 8.42364e-15 -8.68962e-21 9.28244e-25 -6.88728e-15 -4.87512e-19 -1.98117e-24 -4.97412e-28 # # Y clover # -2.33554e-06 -8.50146e-07 -3.45538e-11 2.70922e-15 8.49052e-07 2.01407e-10 -2.23254e-14 -2.69568e-18 -3.43014e-11 2.22783e-14 2.28078e-18 3.25461e-23 -2.68571e-15 -2.69808e-18 -3.36842e-23 3.47434e-26 # # Spherical # 4.48043e-07 4.43844e-07 5.53612e-11 -9.21302e-16 -4.43265e-07 1.08390e-11 8.01375e-16 7.53825e-20 5.53773e-11 -8.02376e-16 -2.48782e-19 -1.42794e-23 9.15105e-16 7.43577e-20 1.82227e-23 -2.94654e-27 # # Coefficients to transform detector X,Y to V2,V3 # # # V2,V3 (pupil) coordinates of reference position # -254.552 -254.554 = in arcsec # # detector X,Y of reference position # 2048 2048 = pixels # # X,Y -> V2 transform coefficients # 0.001912 0.049479 7.89682e-8 -2.94333e-7 3.99467e-7 3.97071e-12 -2.42701e-11 -2.69765e-12 -2.18297e-11 # # X,Y -> V3 transform coefficients # -0.0494753 -0.0019787 3.98757e-7 -2.95496e-7 7.73173e-8 2.05943e-11 2.25953e-12 2.51694e-11 -3.28721e-12 # # V2,V3 -> X # 0.782618 20.2419 -0.000920349 -0.00292507 -0.00350192 1.36322e-06 5.57687e-06 2.33963e-06 4.97512e-06 # # V2,V3 -> Y # -20.2436 -0.809822 0.00349392 0.00294387 0.000915419 -4.76865e-06 -2.41317e-06 -5.72132e-06 -1.27020e-06 # # ACS CCD pixel scattering function kernels (CCD pixel resolution) # 0.400 = Wavelength (microns) of kernel 1 # # Kernel 1 # 0.0323256 0.0965193 0.0323256 0.0965193 0.484621 0.0965193 0.0323256 0.0965193 0.0323256 # 0.600 = Wavelength (microns) of kernel 2 # # Kernel 2 # 0.0231293 0.0755252 0.0231293 0.0755252 0.605382 0.0755252 0.0231293 0.0755252 0.0231293 # 0.800 = Wavelength (microns) of kernel 3 # # Kernel 3 # 0.0132919 0.0455935 0.0132919 0.0455935 0.764459 0.0455935 0.0132919 0.0455935 0.0132919