Grazing Occultation of 78139 K5 Magnitude 8.3 [Red = 7.4] Date: 2010 Feb 24 6h 13m, to 2010 Feb 24 6h 47m Nominal site altitude 250m E. Longit. Latitude U.T. Sun Moon TanZ PA AA CA o ' " o ' " h m s Alt Alt Az o o o -104 0 0 51 27 7 6 13 3 44 254 1.04 13.8 13.73 11.77N -103 45 0 51 20 4 6 13 24 44 254 1.04 13.8 13.76 11.80N -103 30 0 51 12 58 6 13 45 44 255 1.05 13.8 13.79 11.83N -103 15 0 51 5 49 6 14 6 43 255 1.06 13.9 13.82 11.86N -103 0 0 50 58 38 6 14 27 43 255 1.06 13.9 13.85 11.89N -102 45 0 50 51 24 6 14 48 43 256 1.07 13.9 13.88 11.92N -102 30 0 50 44 7 6 15 10 43 256 1.08 14.0 13.91 11.95N -102 15 0 50 36 48 6 15 31 43 257 1.08 14.0 13.94 11.98N -102 0 0 50 29 26 6 15 52 43 257 1.09 14.0 13.97 12.01N -101 45 0 50 22 2 6 16 13 42 257 1.10 14.1 14.00 12.04N -101 30 0 50 14 35 6 16 34 42 258 1.10 14.1 14.03 12.07N -101 15 0 50 7 6 6 16 55 42 258 1.11 14.1 14.06 12.10N -101 0 0 49 59 34 6 17 16 42 259 1.12 14.1 14.09 12.13N -100 45 0 49 52 0 6 17 37 42 259 1.13 14.2 14.11 12.16N -100 30 0 49 44 23 6 17 58 41 260 1.13 14.2 14.14 12.18N -100 15 0 49 36 43 6 18 19 41 260 1.14 14.2 14.17 12.21N -100 0 0 49 29 2 6 18 40 41 260 1.15 14.3 14.20 12.24N - 99 45 0 49 21 18 6 19 1 41 261 1.16 14.3 14.22 12.27N - 99 30 0 49 13 31 6 19 22 41 261 1.16 14.3 14.25 12.29N - 99 15 0 49 5 42 6 19 43 40 262 1.17 14.3 14.28 12.32N - 99 0 0 48 57 51 6 20 4 40 262 1.18 14.4 14.30 12.34N - 98 45 0 48 49 57 6 20 25 40 262 1.19 14.4 14.33 12.37N - 98 30 0 48 42 1 6 20 46 40 263 1.20 14.4 14.35 12.40N - 98 15 0 48 34 3 6 21 7 40 263 1.21 14.4 14.38 12.42N - 98 0 0 48 26 2 6 21 28 39 263 1.22 14.5 14.40 12.45N - 97 45 0 48 18 0 6 21 49 39 264 1.23 14.5 14.43 12.47N - 97 30 0 48 9 55 6 22 10 39 264 1.23 14.5 14.45 12.49N - 97 15 0 48 1 48 6 22 31 39 265 1.24 14.5 14.48 12.52N - 97 0 0 47 53 38 6 22 52 39 265 1.25 14.6 14.50 12.54N - 96 45 0 47 45 27 6 23 13 38 265 1.26 14.6 14.52 12.57N - 96 30 0 47 37 13 6 23 34 38 266 1.27 14.6 14.55 12.59N - 96 15 0 47 28 58 6 23 54 38 266 1.28 14.6 14.57 12.61N - 96 0 0 47 20 40 6 24 15 38 266 1.29 14.6 14.59 12.63N - 95 45 0 47 12 20 6 24 36 37 267 1.30 14.7 14.61 12.65N - 95 30 0 47 3 59 6 24 56 37 267 1.31 14.7 14.63 12.68N - 95 15 0 46 55 35 6 25 17 37 268 1.32 14.7 14.66 12.70N - 95 0 0 46 47 9 6 25 37 37 268 1.34 14.7 14.68 12.72N - 94 45 0 46 38 42 6 25 58 37 268 1.35 14.7 14.70 12.74N - 94 30 0 46 30 13 6 26 18 36 269 1.36 14.8 14.72 12.76N - 94 15 0 46 21 42 6 26 39 36 269 1.37 14.8 14.74 12.78N - 94 0 0 46 13 9 6 26 59 36 269 1.38 14.8 14.76 12.80N - 93 45 0 46 4 34 6 27 19 36 270 1.39 14.8 14.77 12.82N - 93 30 0 45 55 58 6 27 40 35 270 1.40 14.8 14.79 12.84N - 93 15 0 45 47 20 6 28 0 35 270 1.42 14.9 14.81 12.85N - 93 0 0 45 38 41 6 28 20 35 271 1.43 14.9 14.83 12.87N - 92 45 0 45 30 0 6 28 40 35 271 1.44 14.9 14.85 12.89N - 92 30 0 45 21 17 6 29 0 35 271 1.45 14.9 14.86 12.91N - 92 15 0 45 12 33 6 29 20 34 272 1.47 14.9 14.88 12.92N - 92 0 0 45 3 47 6 29 40 34 272 1.48 14.9 14.90 12.94N - 91 45 0 44 55 0 6 29 59 34 272 1.49 15.0 14.91 12.95N - 91 30 0 44 46 11 6 30 19 34 273 1.51 15.0 14.93 12.97N - 91 15 0 44 37 22 6 30 39 33 273 1.52 15.0 14.94 12.98N - 91 0 0 44 28 31 6 30 58 33 273 1.54 15.0 14.96 13.00N - 90 45 0 44 19 38 6 31 17 33 274 1.55 15.0 14.97 13.01N - 90 30 0 44 10 45 6 31 37 33 274 1.57 15.0 14.98 13.03N - 90 15 0 44 1 50 6 31 56 32 274 1.58 15.1 15.00 13.04N - 90 0 0 43 52 54 6 32 15 32 275 1.60 15.1 15.01 13.05N - 89 45 0 43 43 57 6 32 34 32 275 1.61 15.1 15.02 13.07N - 89 30 0 43 34 59 6 32 53 32 275 1.63 15.1 15.04 13.08N - 89 15 0 43 26 0 6 33 12 31 275 1.64 15.1 15.05 13.09N - 89 0 0 43 17 0 6 33 31 31 276 1.66 15.1 15.06 13.10N - 88 45 0 43 7 59 6 33 49 31 276 1.68 15.1 15.07 13.11N - 88 30 0 42 58 57 6 34 8 31 276 1.69 15.1 15.08 13.12N - 88 15 0 42 49 54 6 34 26 30 277 1.71 15.1 15.09 13.13N - 88 0 0 42 40 51 6 34 45 30 277 1.73 15.2 15.10 13.14N - 87 45 0 42 31 46 6 35 3 30 277 1.75 15.2 15.11 13.15N - 87 30 0 42 22 42 6 35 21 30 277 1.76 15.2 15.12 13.16N - 87 15 0 42 13 36 6 35 39 29 278 1.78 15.2 15.13 13.17N - 87 0 0 42 4 30 6 35 57 29 278 1.80 15.2 15.13 13.18N - 86 45 0 41 55 23 6 36 15 29 278 1.82 15.2 15.14 13.19N - 86 30 0 41 46 16 6 36 32 28 279 1.84 15.2 15.15 13.19N - 86 15 0 41 37 8 6 36 50 28 279 1.86 15.2 15.16 13.20N - 86 0 0 41 28 0 6 37 7 28 279 1.88 15.2 15.16 13.21N - 85 45 0 41 18 52 6 37 24 28 279 1.90 15.2 15.17 13.21N - 85 30 0 41 9 43 6 37 41 27 280 1.93 15.2 15.17 13.22N - 85 15 0 41 0 34 6 37 58 27 280 1.95 15.2 15.18 13.22N - 85 0 0 40 51 24 6 38 15 27 280 1.97 15.2 15.18 13.23N - 84 45 0 40 42 15 6 38 32 27 280 1.99 15.2 15.19 13.23N - 84 30 0 40 33 5 6 38 49 26 281 2.02 15.2 15.19 13.24N - 84 15 0 40 23 55 6 39 5 26 281 2.04 15.2 15.20 13.24N - 84 0 0 40 14 45 6 39 21 26 281 2.06 15.3 15.20 13.24N - 83 45 0 40 5 35 6 39 37 26 282 2.09 15.3 15.20 13.24N - 83 30 0 39 56 25 6 39 53 25 282 2.11 15.3 15.20 13.25N - 83 15 0 39 47 15 6 40 9 25 282 2.14 15.3 15.21 13.25N - 83 0 0 39 38 6 6 40 25 25 282 2.17 15.3 15.21 13.25N - 82 45 0 39 28 56 6 40 41 25 283 2.19 15.3 15.21 13.25N - 82 30 0 39 19 47 6 40 56 24 283 2.22 15.3 15.21 13.25N - 82 15 0 39 10 37 6 41 11 24 283 2.25 15.3 15.21 13.25N - 82 0 0 39 1 28 6 41 26 24 283 2.28 15.3 15.21 13.25N - 81 45 0 38 52 20 6 41 41 23 283 2.31 15.3 15.21 13.25N - 81 30 0 38 43 11 6 41 56 23 284 2.34 15.3 15.21 13.25N - 81 15 0 38 34 3 6 42 11 23 284 2.37 15.3 15.21 13.25N - 81 0 0 38 24 56 6 42 25 23 284 2.40 15.3 15.20 13.25N - 80 45 0 38 15 49 6 42 40 22 284 2.43 15.3 15.20 13.25N - 80 30 0 38 6 42 6 42 54 22 285 2.47 15.3 15.20 13.24N - 80 15 0 37 57 36 6 43 8 22 285 2.50 15.3 15.20 13.24N - 80 0 0 37 48 30 6 43 22 22 285 2.54 15.2 15.19 13.24N - 79 45 0 37 39 26 6 43 35 21 285 2.57 15.2 15.19 13.23N - 79 30 0 37 30 21 6 43 49 21 285 2.61 15.2 15.19 13.23N - 79 15 0 37 21 18 6 44 2 21 286 2.65 15.2 15.18 13.23N - 79 0 0 37 12 15 6 44 16 20 286 2.69 15.2 15.18 13.22N - 78 45 0 37 3 13 6 44 29 20 286 2.73 15.2 15.17 13.22N - 78 30 0 36 54 12 6 44 41 20 286 2.77 15.2 15.17 13.21N - 78 15 0 36 45 11 6 44 54 20 287 2.81 15.2 15.16 13.21N - 78 0 0 36 36 12 6 45 7 19 287 2.85 15.2 15.16 13.20N - 77 45 0 36 27 13 6 45 19 19 287 2.90 15.2 15.15 13.19N - 77 30 0 36 18 15 6 45 31 19 287 2.94 15.2 15.14 13.19N - 77 15 0 36 9 18 6 45 43 18 287 2.99 15.2 15.14 13.18N - 77 0 0 36 0 23 6 45 55 18 288 3.04 15.2 15.13 13.17N - 76 45 0 35 51 28 6 46 7 18 288 3.09 15.2 15.12 13.16N - 76 30 0 35 42 34 6 46 18 18 288 3.14 15.2 15.11 13.16N - 76 15 0 35 33 41 6 46 30 17 288 3.20 15.2 15.10 13.15N - 76 0 0 35 24 50 6 46 41 17 288 3.25 15.1 15.10 13.14N - 75 45 0 35 15 59 6 46 52 17 289 3.31 15.1 15.09 13.13N - 75 30 0 35 7 10 6 47 3 17 289 3.37 15.1 15.08 13.12N - 75 15 0 34 58 22 6 47 13 16 289 3.43 15.1 15.07 13.11N - 75 0 0 34 49 35 6 47 24 16 289 3.49 15.1 15.06 13.10N Path coordinates are referred to WGS84 (as used by GPS), with the nominal site altitude being referenced to Mean Sea Level. Projected diameter of star 2 meters Librations Long -6.68 Lat -1.30 P +15.11 D -0.22 Illumination of moon 73%+ Elongation of Moon 118 Vertical Profile Scale 2.31 km/arcsec at mean distance of moon Horizontal Scale Factor 1.91 deg/min At longitude -89.50: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 9.1 5.4 6.9 7.6 8.1 8.4 8.6 8.8 11.1 5.4 6.9 7.6 8.1 8.4 8.7 8.8 13.1 5.5 6.9 7.7 8.1 8.4 8.7 8.8 15.1 5.5 6.9 7.7 8.1 8.5 8.7 8.9 17.1 5.5 6.9 7.7 8.2 8.5 8.7 8.9 ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s midwest grazes -94.1 44.5 155km 6 26 48 MidWest+6 -95.0 45.0 155km 6 25 37