Grazing Occultation of 2373 K1 Magnitude 6.1 Date 2007 May 4 (Friday) 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 -35 19 6 20 33 46 39 262 1.25 0.5 352.14 17.85N 137 10 0 -35 15 27 20 34 1 -12 38 262 1.26 0.4 352.10 17.89N 137 20 0 -35 11 48 20 34 16 -12 38 262 1.27 0.4 352.07 17.93N 137 30 0 -35 8 7 20 34 32 -12 38 262 1.28 0.3 352.04 17.96N 137 40 0 -35 4 26 20 34 47 -11 38 262 1.29 0.3 352.00 17.99N 137 50 0 -35 0 43 20 35 2 -11 38 261 1.30 0.3 351.97 18.03N 138 0 0 -34 57 0 20 35 17 -11 37 261 1.31 0.2 351.94 18.06N 138 10 0 -34 53 15 20 35 32 -11 37 261 1.31 0.2 351.90 18.09N 138 20 0 -34 49 29 20 35 46 -11 37 261 1.32 0.2 351.87 18.12N 138 30 0 -34 45 42 20 36 1 -10 37 261 1.33 0.1 351.84 18.15N 138 40 0 -34 41 54 20 36 16 -10 37 261 1.34 0.1 351.81 18.19N 138 50 0 -34 38 6 20 36 31 -10 36 260 1.35 0.1 351.78 18.22N 139 0 0 -34 34 16 20 36 45 -10 36 260 1.36 0.1 351.75 18.25N 139 10 0 -34 30 25 20 37 0 -10 36 260 1.37 0.0 351.72 18.28N 139 20 0 -34 26 33 20 37 14 -9 36 260 1.38 360.0 351.69 18.31N 139 30 0 -34 22 40 20 37 28 -9 36 260 1.39 360.0 351.65 18.34N 139 40 0 -34 18 46 20 37 43 -9 36 260 1.40 359.9 351.62 18.37N 139 50 0 -34 14 51 20 37 57 -9 35 260 1.41 359.9 351.59 18.40N 140 0 0 -34 10 55 20 38 11 -9 35 259 1.42 359.9 351.56 18.43N 140 10 0 -34 6 58 20 38 25 -8 35 259 1.43 359.8 351.54 18.46N 140 20 0 -34 3 1 20 38 39 -8 35 259 1.44 359.8 351.51 18.49N 140 30 0 -33 59 2 20 38 53 -8 35 259 1.45 359.8 351.48 18.52N 140 40 0 -33 55 2 20 39 7 -8 34 259 1.46 359.8 351.45 18.55N 140 50 0 -33 51 1 20 39 21 -8 34 259 1.47 359.7 351.42 18.57N 141 0 0 -33 47 0 20 39 34 -7 34 259 1.49 359.7 351.39 18.60N 141 10 0 -33 42 57 20 39 48 -7 34 258 1.50 359.7 351.36 18.63N 141 20 0 -33 38 53 20 40 1 -7 34 258 1.51 359.6 351.34 18.66N 141 30 0 -33 34 49 20 40 15 -7 33 258 1.52 359.6 351.31 18.69N 141 40 1 -33 30 43 20 40 28 -7 33 258 1.53 359.6 351.28 18.71N 141 50 1 -33 26 37 20 40 42 -6 33 258 1.54 359.6 351.25 18.74N 142 0 1 -33 22 30 20 40 55 -6 33 258 1.55 359.5 351.23 18.77N 142 10 1 -33 18 22 20 41 8 -6 33 258 1.57 359.5 351.20 18.79N 142 20 1 -33 14 13 20 41 21 -6 32 257 1.58 359.5 351.17 18.82N 142 30 1 -33 10 3 20 41 34 -6 32 257 1.59 359.5 351.15 18.85N 142 40 1 -33 5 52 20 41 47 -5 32 257 1.60 359.4 351.12 18.87N 142 50 1 -33 1 40 20 42 0 -5 32 257 1.61 359.4 351.10 18.90N 143 0 1 -32 57 27 20 42 13 -5 32 257 1.63 359.4 351.07 18.92N 143 10 1 -32 53 14 20 42 26 -5 31 257 1.64 359.4 351.05 18.95N 143 20 1 -32 49 0 20 42 38 -5 31 257 1.65 359.3 351.02 18.97N 143 30 1 -32 44 44 20 42 51 -4 31 256 1.66 359.3 351.00 19.00N 143 40 1 -32 40 28 20 43 3 -4 31 256 1.68 359.3 350.97 19.02N 143 50 1 -32 36 11 20 43 16 -4 31 256 1.69 359.3 350.95 19.05N 144 0 1 -32 31 54 20 43 28 -4 30 256 1.70 359.2 350.92 19.07N Path coordinates are referred to WGS84 (as used by GPS). Librations Long -5.50 Lat +6.38 P +350.3 D -5.2 Illumination of moon 95%- Elongation of Moon 153 Vertical Profile Scale 1.91 km/arcsec at mean distance of moon Horizontal Scale Factor 1.65 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 15.1 4.7 6.1 6.8 7.3 7.6 7.8 7.9 17.1 5.0 6.4 7.1 7.6 7.9 8.1 8.2 19.1 5.1 6.5 7.3 7.7 8.0 8.2 8.4 21.1 5.1 6.5 7.3 7.7 8.0 8.2 8.4 23.1 5.1 6.6 7.3 7.7 8.0 8.2 8.4