Input Droege image file: # name date time camera RA Dec sky skysig FWHM g0483967.fts 03-02-1997 11:13:48 0 I H 199.8 -1.5 -27918 55 3.4 output files: Gombert: r0483967.cat using no star catalog (pixel positions only) Richmond: g0483967.ast using GSC catalog Cross comparison of two results: first 50 or so of Gombert stars, vs. matching Richmond stars. "ID" is Richmond's count, "delta X" is amount to add to G. "X_pos" value to obtain R.'s X value, ditto for others (to Richmond's "aper R Dmag" from Richmond's .PHT file). Star matches fit by hand, based on best fit of X and Y and mag (in that order). Herb Johnson 3 Mar 1997 Y-sort of Gombert catalog for Droege image g0483967 vs. Richmond catalog of same image Gombert | conversion to Richmond ID X_Pos Y_Pos Aperture_Mag Star_FWHM Backgnd richmond delta delta delta ID X (col) Y (row) mag 2 574.47 1.70 10.4930 2.87 11411.5 1 321.60 2.85 13.9152 1.90 11333 3 474.99 9.33 10.3226 2.71 11422.3 1 -15.08 -0.94 -0.744 4 759.13 12.13 11.9933 2.75 11267.3 2 -15.11 -1.01 -0.875 5 492.72 16.63 11.8764 2.71 11425.6 7 663.36 20.39 10.5641 2.67 11396.1 6 492.20 21.58 11.7022 2.70 11426.9 8 624.00 24.77 12.2589 2.72 11405.9 5 -15.46 -1.02 -1.297 9 292.02 26.55 10.4112 2.71 11341.4 6 -14.99 -0.98 -0.699 11 262.22 28.98 12.3124 2.87 11270.6 10 73.14 29.54 12.2457 2.49 11131.8 8 -15.05 -0.85 -0.628 13 101.60 30.98 10.6778 2.83 11157.5 9 -15.16 -1.06 -0.646 12 688.66 32.79 11.8932 2.74 11259.2 10 -15.01 -0.88 -0.648 14 276.85 35.73 12.3130 2.77 11299.9 11 -14.94 -1.00 -0.843 15 595.98 39.64 12.6075 3.33 11308.5 14 -14.52 -0.87 -0.651 779 11.00 43.41 99.0000 15.99 11206.2 19 287.99 46.98 9.4591 2.91 11329.7 15 -14.92 -1.04 -0.627 16 62.67 48.82 11.9888 2.78 11177.8 16 -14.77 -0.92 -0.585 18 121.86 49.82 12.3894 3.16 11225.1 18 -14.90 -1.09 -1.117 17 31.20 50.56 12.7984 2.99 11171.1 17 -15.04 -0.91 -0.774 20 565.82 51.10 11.1290 2.98 11344.6 19 -15.13 -0.97 -0.616 22 767.33 51.43 11.0686 3.54 11256.8 20 -14.91 -0.98 -0.533 21 733.92 55.17 12.7020 4.03 11306.7 22 -15.28 -0.93 -0.728 23 356.87 56.03 12.9945 2.63 11372.6 21 -15.32 -0.90 -0.520 24 383.15 57.34 12.9010 3.99 11379.4 23 -14.95 -0.72 -0.620 25 101.99 59.00 13.0889 2.53 11238.8 24 -15.09 -0.83 -0.463 26 400.08 63.47 12.3255 3.35 11392.6 25 -14.81 -1.19 -0.606 29 286.20 63.85 12.5179 3.16 11370.7 27 -15.02 -0.85 -0.596 28 251.55 64.15 12.5107 4.03 11353.8 26 -15.53 -0.70 -0.682 30 556.59 67.46 12.6095 3.17 11387.5 28 -14.63 -0.70 -0.590 33 83.98 70.98 8.9116 2.70 11242.7 29 -14.90 -0.99 -0.660 31 384.81 75.13 13.0882 3.04 11425.5 30 -14.90 -1.02 -0.636 32 752.22 75.71 13.0898 5.72 11361.6 35 563.23 76.95 12.8993 3.56 11407.8 193 776.69 81.01 12.0933 21.90 11304.5 33 -15.40 -0.22 -0.238 34 681.08 81.02 12.0640 3.44 11372.7 31 -15.25 -0.98 -0.686 36 564.90 82.21 12.9998 5.72 11414.4 37 710.81 82.36 12.4308 3.49 11364.5 32 -14.53 -0.95 -0.531 40 431.74 83.73 10.4983 3.28 11429.6 34 -14.73 -1.02 -0.582 38 22.53 84.74 12.4947 3.15 11256.7 35 -14.82 -1.13 -0.749 45 506.27 88.96 10.2243 3.09 11430 36 -14.71 -0.96 -0.609 39 340.51 88.98 13.2200 2.26 11431.8 41 326.03 89.70 12.4956 3.22 11425.2 37 -14.97 -0.74 -0.735 44 614.00 91.34 12.7173 3.49 11408.7 39 -14.45 -1.06 -0.512 43 441.64 91.52 13.2192 3.36 11448.5 42 101.71 91.55 12.8818 2.93 11300.4 38 -14.95 -0.99 -0.469 48 734.24 93.15 10.6053 3.20 11396 40 -15.01 -0.73 -0.643 49 581.76 94.34 11.8946 3.37 11426.2 42 -14.98 -1.22 -0.557 46 163.86 94.44 11.9575 3.23 11316.9 41 -15.29 -0.72 -0.556 47 714.58 95.73 13.0966 4.78 11388.6 50 379.08 97.13 10.9040 3.02 11454.3 43 -15.07 -0.81 -0.617 54 418.03 97.96 10.0218 4.02 11465.3