Grazing Occultation of 1817 K2 Magnitude 6.7 Date 2007 January 10 (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 138 0 0 -30 53 19 17 14 31 42 68 1.10 220.3 198.87 17.03S 138 10 0 -31 3 22 17 15 5 43 68 1.09 220.3 198.90 17.07S 138 20 0 -31 13 28 17 15 38 43 67 1.08 220.4 198.94 17.10S 138 30 0 -31 23 37 17 16 12 43 67 1.08 220.4 198.97 17.13S 138 40 0 -31 33 49 17 16 46 43 66 1.07 220.4 199.00 17.17S 138 50 0 -31 44 4 17 17 20 43 66 1.06 220.5 199.03 17.20S 139 0 0 -31 54 22 17 17 54 43 66 1.06 220.5 199.07 17.23S 139 10 0 -32 4 43 17 18 29 44 65 1.05 220.5 199.10 17.26S 139 20 0 -32 15 7 17 19 3 44 65 1.04 220.6 199.13 17.29S 139 30 0 -32 25 34 17 19 38 44 64 1.04 220.6 199.15 17.32S 139 40 0 -32 36 3 17 20 13 44 64 1.03 220.6 199.18 17.35S 139 50 0 -32 46 35 17 20 47 44 63 1.03 220.6 199.21 17.37S 140 0 0 -32 57 10 17 21 22 44 63 1.02 220.7 199.24 17.40S 140 10 0 -33 7 48 17 21 57 45 63 1.02 220.7 199.26 17.42S 140 20 0 -33 18 27 17 22 32 45 62 1.01 220.7 199.28 17.45S 140 30 0 -33 29 9 17 23 7 45 62 1.01 220.7 199.31 17.47S 140 40 0 -33 39 54 17 23 43 45 61 1.00 220.8 199.33 17.49S 140 50 0 -33 50 41 17 24 18 45 61 1.00 220.8 199.35 17.52S 141 0 0 -34 1 29 17 24 53 45 60 0.99 220.8 199.37 17.54S 141 10 0 -34 12 20 17 25 29 45 60 0.99 220.8 199.39 17.56S 141 20 0 -34 23 13 17 26 4 46 59 0.98 220.9 199.41 17.57S 141 30 0 -34 34 8 17 26 40 46 59 0.98 220.9 199.43 17.59S 141 40 0 -34 45 5 17 27 15 46 58 0.97 220.9 199.44 17.61S 141 50 0 -34 56 4 17 27 51 46 58 0.97 220.9 199.46 17.62S 142 0 0 -35 7 4 17 28 27 46 57 0.96 220.9 199.47 17.64S 142 10 0 -35 18 6 17 29 2 46 57 0.96 220.9 199.49 17.65S 142 20 0 -35 29 9 17 29 38 46 57 0.96 220.9 199.50 17.66S 142 30 0 -35 40 14 17 30 14 46 56 0.95 221.0 199.51 17.68S 142 40 1 -35 51 20 17 30 50 46 56 0.95 221.0 199.52 17.69S 142 50 1 -36 2 27 17 31 25 47 55 0.95 221.0 199.53 17.70S 143 0 1 -36 13 35 17 32 1 47 55 0.94 221.0 199.54 17.70S 143 10 1 -36 24 45 17 32 37 47 54 0.94 221.0 199.55 17.71S 143 20 1 -36 35 55 17 33 12 47 54 0.94 221.0 199.55 17.72S 143 30 1 -36 47 6 17 33 48 47 53 0.93 221.0 199.56 17.72S 143 40 1 -36 58 18 17 34 24 47 52 0.93 221.0 199.56 17.73S 143 50 1 -37 9 31 17 34 59 47 52 0.93 221.0 199.57 17.73S 144 0 1 -37 20 44 17 35 35 47 51 0.93 221.0 199.57 17.73S 144 10 1 -37 31 57 17 36 10 47 51 0.92 221.0 199.57 17.74S 144 20 1 -37 43 11 17 36 46 47 50 0.92 221.0 199.57 17.74S 144 30 1 -37 54 26 17 37 21 47 50 0.92 221.0 199.57 17.74S 144 40 1 -38 5 40 17 37 57 48 49 0.92 221.0 199.57 17.73S 144 50 1 -38 16 55 17 38 32 48 49 0.91 221.0 199.57 17.73S 145 0 1 -38 28 9 17 39 7 48 48 0.91 221.0 199.56 17.73S 145 10 1 -38 39 23 17 39 42 48 48 0.91 221.0 199.56 17.72S 145 20 1 -38 50 38 17 40 17 48 47 0.91 221.0 199.55 17.72S 145 30 1 -39 1 51 17 40 52 48 47 0.91 221.0 199.55 17.71S 145 40 1 -39 13 5 17 41 27 48 46 0.91 221.0 199.54 17.70S 145 50 1 -39 24 18 17 42 2 48 46 0.90 221.0 199.53 17.70S 146 0 1 -39 35 30 17 42 36 48 45 0.90 221.0 199.52 17.69S 146 10 1 -39 46 42 17 43 11 48 45 0.90 221.0 199.51 17.68S 146 20 1 -39 57 53 17 43 45 48 44 0.90 220.9 199.50 17.67S 146 30 1 -40 9 3 17 44 20 48 44 0.90 220.9 199.49 17.65S 146 40 1 -40 20 13 17 44 54 -12 48 43 0.90 220.9 199.48 17.64S 146 50 1 -40 31 21 17 45 28 -12 48 42 0.90 220.9 199.46 17.63S 147 0 1 -40 42 28 17 46 2 -11 48 42 0.90 220.9 199.45 17.61S 147 10 1 -40 53 34 17 46 36 -11 48 41 0.90 220.9 199.43 17.60S 147 20 1 -41 4 39 17 47 9 -11 48 41 0.90 220.9 199.42 17.58S 147 30 1 -41 15 42 17 47 43 -10 48 40 0.90 220.8 199.40 17.56S 147 40 1 -41 26 44 17 48 16 -10 48 40 0.90 220.8 199.38 17.54S 147 50 1 -41 37 45 17 48 49 -10 48 39 0.90 220.8 199.36 17.53S 148 0 1 -41 48 44 17 49 22 -9 48 39 0.90 220.8 199.34 17.51S 148 10 1 -41 59 41 17 49 55 -9 48 38 0.90 220.8 199.32 17.49S 148 20 1 -42 10 36 17 50 28 -9 48 38 0.90 220.7 199.30 17.46S 148 30 1 -42 21 30 17 51 0 -9 48 37 0.90 220.7 199.28 17.44S 148 40 1 -42 32 22 17 51 33 -8 48 37 0.90 220.7 199.26 17.42S 148 50 1 -42 43 12 17 52 5 -8 48 36 0.90 220.7 199.23 17.40S 149 0 1 -42 54 0 17 52 37 -8 48 36 0.90 220.6 199.21 17.37S Path coordinates are referred to WGS84 (as used by GPS). Librations Long -0.58 Lat +2.05 P +199.2 D +2.4 Illumination of moon 57%- Elongation of Moon 98 Vertical Profile Scale 2.52 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 13.4 5.8 7.2 8.0 8.6 8.9 9.2 9.4 15.4 5.8 7.3 8.1 8.6 9.0 9.2 9.4 17.4 5.8 7.3 8.1 8.6 9.0 9.2 9.4 19.4 5.8 7.3 8.1 8.6 9.0 9.3 9.5 21.4 5.8 7.3 8.1 8.6 9.0 9.3 9.5