Grazing Occultation of 3181 cA7 Magnitude 6.0 3181 = 45 Capricorni Date 2007 June 6 (Wednesday) Nominal site altitude 0m E. Longit. Latitude U.T. Sun Moon TanZ PA WA CA o ' " o ' " h m s Alt Alt Az o o o 142 30 0 -38 10 55 16 44 50 49 65 0.86 330.8 348.86 10.41N 142 40 0 -38 8 50 16 45 8 50 65 0.85 330.7 348.80 10.47N 142 50 0 -38 6 44 16 45 26 50 65 0.85 330.7 348.74 10.53N 143 0 0 -38 4 36 16 45 44 50 65 0.84 330.6 348.68 10.59N 143 10 0 -38 2 26 16 46 3 50 65 0.84 330.6 348.62 10.65N 143 20 0 -38 0 15 16 46 21 50 64 0.83 330.5 348.56 10.71N 143 30 0 -37 58 3 16 46 39 50 64 0.83 330.4 348.50 10.77N 143 40 0 -37 55 49 16 46 58 51 64 0.82 330.4 348.44 10.83N 143 50 0 -37 53 33 16 47 16 51 64 0.81 330.3 348.38 10.89N 144 0 0 -37 51 16 16 47 35 51 64 0.81 330.3 348.31 10.95N 144 10 0 -37 48 57 16 47 54 51 63 0.80 330.2 348.25 11.02N 144 20 0 -37 46 37 16 48 13 51 63 0.80 330.1 348.19 11.08N 144 30 0 -37 44 14 16 48 31 52 63 0.79 330.1 348.13 11.14N 144 40 0 -37 41 51 16 48 50 52 63 0.79 330.0 348.07 11.20N 144 50 0 -37 39 25 16 49 10 52 62 0.78 330.0 348.01 11.26N 145 0 0 -37 36 58 16 49 29 52 62 0.78 329.9 347.95 11.32N 145 10 0 -37 34 30 16 49 48 52 62 0.77 329.8 347.88 11.38N 145 20 0 -37 31 59 16 50 7 53 62 0.77 329.8 347.82 11.45N 145 30 0 -37 29 27 16 50 27 53 62 0.76 329.7 347.76 11.51N 145 40 0 -37 26 54 16 50 47 53 61 0.75 329.6 347.70 11.57N 145 50 0 -37 24 19 16 51 6 53 61 0.75 329.6 347.64 11.63N 146 0 0 -37 21 41 16 51 26 53 61 0.74 329.5 347.57 11.70N 146 10 0 -37 19 3 16 51 46 54 61 0.74 329.5 347.51 11.76N 146 20 0 -37 16 22 16 52 6 54 60 0.73 329.4 347.45 11.82N 146 30 0 -37 13 40 16 52 26 54 60 0.73 329.3 347.38 11.89N 146 40 0 -37 10 56 16 52 46 54 60 0.72 329.3 347.32 11.95N 146 50 0 -37 8 11 16 53 6 54 60 0.72 329.2 347.26 12.01N 147 0 0 -37 5 23 16 53 27 55 59 0.71 329.1 347.19 12.08N 147 10 1 -37 2 34 16 53 47 55 59 0.71 329.1 347.13 12.14N 147 20 1 -36 59 43 16 54 8 55 59 0.70 329.0 347.06 12.21N 147 30 1 -36 56 50 16 54 28 55 59 0.70 328.9 347.00 12.27N 147 40 1 -36 53 56 16 54 49 55 58 0.69 328.9 346.94 12.33N 147 50 1 -36 51 0 16 55 10 56 58 0.69 328.8 346.87 12.40N 148 0 1 -36 48 1 16 55 31 56 58 0.68 328.8 346.81 12.46N 148 10 1 -36 45 2 16 55 52 56 58 0.68 328.7 346.74 12.53N 148 20 1 -36 42 0 16 56 13 56 57 0.67 328.6 346.68 12.59N 148 30 1 -36 38 56 16 56 34 56 57 0.67 328.6 346.61 12.66N 148 40 1 -36 35 51 16 56 56 57 57 0.66 328.5 346.54 12.72N 148 50 1 -36 32 43 16 57 17 57 57 0.66 328.4 346.48 12.79N 149 0 1 -36 29 34 16 57 39 57 56 0.65 328.4 346.41 12.86N 149 10 1 -36 26 23 16 58 1 57 56 0.65 328.3 346.35 12.92N 149 20 1 -36 23 10 16 58 22 57 56 0.64 328.2 346.28 12.99N 149 30 1 -36 19 55 16 58 44 58 56 0.64 328.2 346.22 13.05N 149 40 1 -36 16 39 16 59 6 58 55 0.63 328.1 346.15 13.12N 149 50 1 -36 13 20 16 59 28 58 55 0.63 328.0 346.08 13.19N 150 0 1 -36 9 59 16 59 51 58 55 0.62 328.0 346.02 13.25N 150 10 1 -36 6 37 17 0 13 58 55 0.62 327.9 345.95 13.32N 150 20 1 -36 3 12 17 0 36 59 54 0.61 327.8 345.88 13.39N 150 30 1 -35 59 45 17 0 58 59 54 0.61 327.8 345.82 13.45N 150 40 1 -35 56 17 17 1 21 59 54 0.60 327.7 345.75 13.52N 150 50 1 -35 52 46 17 1 44 59 53 0.60 327.6 345.68 13.59N 151 0 1 -35 49 14 17 2 6 59 53 0.59 327.6 345.61 13.66N Path coordinates are referred to WGS84 (as used by GPS). 3181 is double : 6.7 6.7 0.050" 0.0 Graze Path of component #2 0.08km South, and 0.1 secs. later cf. primary. Librations Long -5.14 Lat +1.79 P +345.5 D -0.2 Illumination of moon 69%- Elongation of Moon 112 Vertical Profile Scale 1.90 km/arcsec at mean distance of moon Horizontal Scale Factor 1.41 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 9.7 5.7 7.2 8.0 8.5 8.9 9.2 9.4 11.7 5.7 7.2 8.0 8.5 8.9 9.2 9.4 13.7 5.8 7.2 8.0 8.6 8.9 9.2 9.4 15.7 5.8 7.2 8.0 8.6 8.9 9.2 9.4 17.7 5.8 7.2 8.0 8.6 9.0 9.2 9.4