Grazing Occultation of 2505 K4 Magnitude 5.3 2505 = 43 Ophiuchi Date 2007 July 26 (Thursday) 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 135 0 0 -36 30 39 16 28 37 35 259 1.42 171.9 168.10 6.42S 135 10 0 -36 25 23 16 28 50 35 258 1.43 171.8 168.07 6.45S 135 20 0 -36 20 6 16 29 3 35 258 1.44 171.8 168.05 6.47S 135 30 0 -36 14 48 16 29 15 35 258 1.45 171.8 168.03 6.49S 135 40 0 -36 9 29 16 29 28 34 258 1.46 171.8 168.01 6.51S 135 50 0 -36 4 10 16 29 41 34 258 1.47 171.7 167.99 6.53S 136 0 0 -35 58 49 16 29 54 34 258 1.48 171.7 167.97 6.55S 136 10 0 -35 53 28 16 30 6 34 258 1.49 171.7 167.95 6.56S 136 20 0 -35 48 6 16 30 19 34 257 1.50 171.7 167.93 6.58S 136 30 0 -35 42 43 16 30 32 34 257 1.51 171.7 167.91 6.60S 136 40 0 -35 37 20 16 30 44 33 257 1.52 171.7 167.90 6.62S 136 50 0 -35 31 55 16 30 57 33 257 1.53 171.6 167.88 6.64S 137 0 0 -35 26 30 16 31 9 33 257 1.54 171.6 167.86 6.65S 137 10 0 -35 21 4 16 31 21 33 257 1.56 171.6 167.84 6.67S 137 20 0 -35 15 37 16 31 34 33 256 1.57 171.6 167.83 6.69S 137 30 0 -35 10 9 16 31 46 32 256 1.58 171.6 167.81 6.71S 137 40 0 -35 4 41 16 31 58 32 256 1.59 171.6 167.79 6.72S 137 50 0 -34 59 12 16 32 10 32 256 1.60 171.5 167.78 6.74S 138 0 0 -34 53 42 16 32 22 32 256 1.61 171.5 167.76 6.76S 138 10 0 -34 48 12 16 32 34 32 256 1.63 171.5 167.74 6.77S 138 20 0 -34 42 41 16 32 46 31 255 1.64 171.5 167.73 6.79S 138 30 0 -34 37 9 16 32 58 31 255 1.65 171.5 167.71 6.80S 138 40 0 -34 31 36 16 33 10 31 255 1.67 171.5 167.70 6.82S 138 50 0 -34 26 3 16 33 22 31 255 1.68 171.4 167.68 6.83S 139 0 0 -34 20 29 16 33 34 31 255 1.69 171.4 167.67 6.85S 139 10 0 -34 14 54 16 33 45 30 255 1.70 171.4 167.65 6.86S 139 20 0 -34 9 19 16 33 57 30 255 1.72 171.4 167.64 6.88S 139 30 0 -34 3 43 16 34 8 30 254 1.73 171.4 167.62 6.89S 139 40 1 -33 58 7 16 34 20 30 254 1.75 171.4 167.61 6.91S 139 50 1 -33 52 30 16 34 31 30 254 1.76 171.4 167.60 6.92S 140 0 1 -33 46 52 16 34 43 29 254 1.77 171.3 167.58 6.93S 140 10 1 -33 41 14 16 34 54 29 254 1.79 171.3 167.57 6.95S 140 20 1 -33 35 35 16 35 5 29 254 1.80 171.3 167.56 6.96S 140 30 1 -33 29 55 16 35 16 29 254 1.82 171.3 167.54 6.97S 140 40 1 -33 24 15 16 35 28 29 253 1.83 171.3 167.53 6.99S 140 50 1 -33 18 34 16 35 39 28 253 1.85 171.3 167.52 7.00S 141 0 1 -33 12 53 16 35 50 28 253 1.86 171.3 167.51 7.01S 141 10 1 -33 7 11 16 36 1 28 253 1.88 171.3 167.49 7.02S 141 20 1 -33 1 29 16 36 11 28 253 1.89 171.2 167.48 7.03S 141 30 1 -32 55 46 16 36 22 28 253 1.91 171.2 167.47 7.05S 141 40 1 -32 50 3 16 36 33 27 253 1.93 171.2 167.46 7.06S 141 50 1 -32 44 19 16 36 44 27 253 1.94 171.2 167.45 7.07S 142 0 1 -32 38 35 16 36 54 27 252 1.96 171.2 167.44 7.08S 142 10 1 -32 32 50 16 37 5 27 252 1.98 171.2 167.43 7.09S 142 20 1 -32 27 5 16 37 15 27 252 1.99 171.2 167.42 7.10S 142 30 1 -32 21 19 16 37 26 26 252 2.01 171.2 167.40 7.11S 142 40 1 -32 15 33 16 37 36 26 252 2.03 171.2 167.39 7.12S 142 50 1 -32 9 46 16 37 46 26 252 2.05 171.1 167.38 7.13S 143 0 1 -32 3 59 16 37 57 26 252 2.06 171.1 167.38 7.14S 143 10 1 -31 58 12 16 38 7 26 251 2.08 171.1 167.37 7.15S 143 20 1 -31 52 24 16 38 17 25 251 2.10 171.1 167.36 7.16S 143 30 1 -31 46 36 16 38 27 25 251 2.12 171.1 167.35 7.17S 143 40 1 -31 40 47 16 38 37 25 251 2.14 171.1 167.34 7.18S 143 50 1 -31 34 58 16 38 47 25 251 2.16 171.1 167.33 7.19S 144 0 1 -31 29 9 16 38 56 25 251 2.18 171.1 167.32 7.20S 144 10 1 -31 23 19 16 39 6 24 251 2.20 171.1 167.31 7.20S 144 20 1 -31 17 29 16 39 16 24 251 2.22 171.1 167.30 7.21S 144 30 1 -31 11 39 16 39 25 24 250 2.24 171.1 167.30 7.22S 144 40 1 -31 5 48 16 39 35 24 250 2.26 171.1 167.29 7.23S 144 50 1 -30 59 57 16 39 44 24 250 2.28 171.0 167.28 7.24S 145 0 1 -30 54 5 16 39 54 23 250 2.30 171.0 167.27 7.24S 145 10 1 -30 48 14 16 40 3 23 250 2.33 171.0 167.27 7.25S 145 20 1 -30 42 22 16 40 12 23 250 2.35 171.0 167.26 7.26S 145 30 1 -30 36 29 16 40 21 23 250 2.37 171.0 167.25 7.26S 145 40 1 -30 30 37 16 40 30 23 250 2.39 171.0 167.25 7.27S 145 50 1 -30 24 44 16 40 39 22 250 2.42 171.0 167.24 7.28S 146 0 1 -30 18 51 16 40 48 22 249 2.44 171.0 167.24 7.28S 146 10 1 -30 12 58 16 40 57 22 249 2.47 171.0 167.23 7.29S 146 20 1 -30 7 4 16 41 6 22 249 2.49 171.0 167.22 7.29S 146 30 1 -30 1 11 16 41 15 22 249 2.52 171.0 167.22 7.30S 146 40 1 -29 55 17 16 41 23 21 249 2.54 171.0 167.21 7.30S 146 50 1 -29 49 23 16 41 32 21 249 2.57 171.0 167.21 7.31S 147 0 1 -29 43 28 16 41 40 21 249 2.59 171.0 167.20 7.31S 147 10 1 -29 37 34 16 41 49 21 249 2.62 171.0 167.20 7.32S 147 20 1 -29 31 39 16 41 57 21 249 2.65 171.0 167.19 7.32S 147 30 1 -29 25 45 16 42 5 20 248 2.68 171.0 167.19 7.33S 147 40 1 -29 19 50 16 42 14 20 248 2.71 170.9 167.19 7.33S 147 50 1 -29 13 55 16 42 22 20 248 2.73 170.9 167.18 7.34S 148 0 1 -29 7 59 16 42 30 20 248 2.76 170.9 167.18 7.34S 148 10 1 -29 2 4 16 42 38 20 248 2.79 170.9 167.16 7.35S 148 20 1 -28 56 9 16 42 46 19 248 2.83 170.9 167.16 7.36S 148 30 1 -28 50 13 16 42 53 19 248 2.86 170.9 167.16 7.36S 148 40 2 -28 44 17 16 43 1 19 248 2.89 170.9 167.15 7.36S 148 50 2 -28 38 22 16 43 9 19 248 2.92 170.9 167.15 7.37S 149 0 2 -28 32 26 16 43 16 19 247 2.95 170.9 167.15 7.37S 149 10 2 -28 26 30 16 43 24 18 247 2.99 170.9 167.15 7.37S 149 20 2 -28 20 34 16 43 31 18 247 3.02 170.9 167.14 7.37S 149 30 2 -28 14 38 16 43 39 18 247 3.06 170.9 167.14 7.38S 149 40 2 -28 8 42 16 43 46 18 247 3.10 170.9 167.14 7.38S 149 50 2 -28 2 46 16 43 53 18 247 3.13 170.9 167.14 7.38S 150 0 2 -27 56 50 16 44 0 18 247 3.17 170.9 167.14 7.38S 150 10 2 -27 50 54 16 44 7 17 247 3.21 170.9 167.13 7.38S 150 20 2 -27 44 58 16 44 14 17 247 3.25 170.9 167.13 7.39S 150 30 2 -27 39 2 16 44 21 17 247 3.29 170.9 167.13 7.39S 150 40 2 -27 33 6 16 44 28 17 246 3.33 170.9 167.13 7.39S 150 50 2 -27 27 10 16 44 35 17 246 3.37 170.9 167.13 7.39S 151 0 2 -27 21 14 16 44 41 16 246 3.42 170.9 167.13 7.39S 151 10 2 -27 15 18 16 44 48 16 246 3.46 170.9 167.13 7.39S 151 20 2 -27 9 22 16 44 55 16 246 3.50 170.9 167.13 7.39S 151 30 2 -27 3 26 16 45 1 16 246 3.55 170.9 167.13 7.39S 151 40 2 -26 57 30 16 45 7 16 246 3.60 170.9 167.13 7.39S 151 50 2 -26 51 35 16 45 14 15 246 3.65 170.9 167.13 7.39S 152 0 2 -26 45 39 16 45 20 15 246 3.70 170.9 167.13 7.39S 152 10 2 -26 39 44 16 45 26 15 246 3.75 170.9 167.13 7.39S 152 20 2 -26 33 48 16 45 32 15 246 3.80 170.9 167.13 7.39S 152 30 2 -26 27 53 16 45 38 15 245 3.85 170.9 167.13 7.39S 152 40 2 -26 21 58 16 45 44 14 245 3.91 170.9 167.13 7.39S 152 50 2 -26 16 2 16 45 50 14 245 3.97 170.9 167.13 7.38S 153 0 2 -26 10 7 16 45 55 14 245 4.02 170.9 167.13 7.38S 153 10 2 -26 4 13 16 46 1 14 245 4.08 170.9 167.14 7.38S 153 20 2 -25 58 18 16 46 7 14 245 4.15 170.9 167.14 7.38S Path coordinates are referred to WGS84 (as used by GPS). Librations Long -5.34 Lat +6.21 P +166.6 D +5.1 Illumination of moon 87%+ Elongation of Moon 138 Vertical Profile Scale 1.98 km/arcsec at mean distance of moon Horizontal Scale Factor 1.97 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 3.4 2.4 3.7 4.3 4.6 4.8 4.9 5.0 5.4 3.9 5.2 5.8 6.1 6.3 6.5 6.6 7.4 3.9 5.3 5.9 6.2 6.4 6.6 6.7 9.4 4.2 5.6 6.2 6.5 6.8 6.9 7.0 11.4 4.6 6.0 6.6 7.0 7.2 7.3 7.4