Grazing Occultation of 185679 B8 Magnitude 8.5 Date 2007 January 16 (Tuesday) 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 137 0 0 -34 14 29 18 32 5 11 116 5.02 190.3 188.82 16.76S 137 10 0 -34 20 44 18 32 10 11 116 4.94 190.3 188.82 16.76S 137 20 0 -34 27 0 18 32 15 12 116 4.86 190.3 188.82 16.76S 137 30 0 -34 33 16 18 32 20 12 116 4.78 190.3 188.82 16.77S 137 40 0 -34 39 33 18 32 25 12 116 4.70 190.3 188.83 16.77S 137 50 0 -34 45 49 18 32 30 12 116 4.63 190.3 188.83 16.77S 138 0 0 -34 52 7 18 32 35 12 116 4.56 190.3 188.83 16.78S 138 10 0 -34 58 24 18 32 41 13 116 4.49 190.3 188.84 16.78S 138 20 0 -35 4 42 18 32 46 13 116 4.42 190.3 188.84 16.78S 138 30 0 -35 11 0 18 32 52 13 115 4.36 190.3 188.84 16.78S 138 40 0 -35 17 19 18 32 57 13 115 4.29 190.3 188.84 16.79S 138 50 0 -35 23 38 18 33 3 13 115 4.23 190.3 188.84 16.79S 139 0 0 -35 29 57 18 33 8 13 115 4.17 190.3 188.85 16.79S 139 10 0 -35 36 17 18 33 14 14 115 4.11 190.3 188.85 16.79S 139 20 0 -35 42 37 18 33 20 14 115 4.06 190.3 188.85 16.79S 139 30 0 -35 48 57 18 33 26 14 115 4.00 190.3 188.85 16.79S 139 40 0 -35 55 17 18 33 32 14 115 3.95 190.3 188.85 16.80S 139 50 0 -36 1 38 18 33 38 14 115 3.89 190.3 188.85 16.80S 140 0 0 -36 7 59 18 33 44 15 114 3.84 190.3 188.85 16.80S 140 10 0 -36 14 20 18 33 50 15 114 3.79 190.3 188.86 16.80S 140 20 0 -36 20 42 18 33 57 -12 15 114 3.74 190.3 188.86 16.80S 140 30 0 -36 27 3 18 34 3 -12 15 114 3.69 190.3 188.86 16.80S 140 40 0 -36 33 25 18 34 9 -12 15 114 3.65 190.3 188.86 16.80S 140 50 0 -36 39 47 18 34 16 -11 16 114 3.60 190.3 188.86 16.80S 141 0 0 -36 46 9 18 34 23 -11 16 114 3.56 190.3 188.86 16.80S 141 10 0 -36 52 32 18 34 29 -11 16 114 3.51 190.3 188.86 16.80S 141 20 0 -36 58 55 18 34 36 -11 16 113 3.47 190.3 188.86 16.80S 141 30 0 -37 5 17 18 34 43 -11 16 113 3.43 190.3 188.86 16.80S 141 40 1 -37 11 40 18 34 50 -10 16 113 3.39 190.3 188.85 16.80S 141 50 1 -37 18 3 18 34 57 -10 17 113 3.35 190.3 188.85 16.80S 142 0 1 -37 24 27 18 35 4 -10 17 113 3.31 190.3 188.85 16.80S 142 10 1 -37 30 50 18 35 11 -10 17 113 3.27 190.3 188.85 16.80S 142 20 1 -37 37 13 18 35 18 -10 17 113 3.23 190.3 188.85 16.79S 142 30 1 -37 43 37 18 35 25 -9 17 113 3.20 190.3 188.85 16.79S 142 40 1 -37 50 1 18 35 32 -9 18 112 3.16 190.3 188.85 16.79S 142 50 1 -37 56 24 18 35 40 -9 18 112 3.13 190.3 188.85 16.79S 143 0 1 -38 2 48 18 35 47 -9 18 112 3.09 190.3 188.84 16.79S 143 10 1 -38 9 12 18 35 55 -9 18 112 3.06 190.3 188.84 16.78S 143 20 1 -38 15 36 18 36 2 -9 18 112 3.03 190.3 188.84 16.78S 143 30 1 -38 22 0 18 36 10 -8 18 112 2.99 190.3 188.84 16.78S 143 40 1 -38 28 24 18 36 18 -8 19 112 2.96 190.3 188.83 16.78S 143 50 1 -38 34 48 18 36 26 -8 19 111 2.93 190.3 188.83 16.77S 144 0 1 -38 41 11 18 36 34 -8 19 111 2.90 190.3 188.83 16.77S Path coordinates are referred to WGS84 (as used by GPS). Librations Long -4.90 Lat +6.05 P +188.3 D +7.0 Illumination of moon 7%- Elongation of Moon 30 Vertical Profile Scale 2.22 km/arcsec at mean distance of moon Horizontal Scale Factor 2.03 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 12.8 6.0 7.4 8.2 8.7 9.0 9.2 9.4 14.8 6.0 7.4 8.2 8.7 9.0 9.2 9.4 16.8 6.0 7.4 8.2 8.7 9.0 9.2 9.4 18.8 6.0 7.4 8.2 8.7 9.0 9.2 9.4 20.8 6.0 7.4 8.2 8.7 9.0 9.2 9.4