Grazing Occultation of 2660 A3 Magnitude 6.2 Date 2006 February 23 (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 174 30 0 -37 37 24 15 28 41 28 106 1.91 187.6 190.11 12.65S 174 40 0 -37 43 6 15 28 51 28 106 1.90 187.6 190.10 12.64S 174 50 0 -37 48 47 15 29 1 28 106 1.88 187.6 190.08 12.62S 175 0 0 -37 54 27 15 29 11 28 106 1.87 187.6 190.07 12.61S 175 10 0 -38 0 7 15 29 21 28 105 1.86 187.6 190.06 12.60S 175 20 0 -38 5 46 15 29 31 29 105 1.84 187.5 190.04 12.58S 175 30 0 -38 11 25 15 29 41 29 105 1.83 187.5 190.03 12.57S 175 40 0 -38 17 2 15 29 51 29 105 1.81 187.5 190.02 12.56S 175 50 0 -38 22 40 15 30 2 29 105 1.80 187.5 190.00 12.54S 176 0 0 -38 28 16 15 30 12 29 105 1.79 187.5 189.99 12.53S 176 10 0 -38 33 52 15 30 22 29 104 1.77 187.5 189.97 12.51S 176 20 0 -38 39 27 15 30 33 30 104 1.76 187.5 189.96 12.50S 176 30 0 -38 45 1 15 30 43 30 104 1.75 187.5 189.94 12.48S 176 40 0 -38 50 34 15 30 54 30 104 1.73 187.4 189.93 12.47S 176 50 0 -38 56 7 15 31 4 30 104 1.72 187.4 189.91 12.45S 177 0 0 -39 1 39 15 31 15 30 104 1.71 187.4 189.90 12.44S 177 10 0 -39 7 10 15 31 26 31 104 1.70 187.4 189.88 12.42S 177 20 0 -39 12 41 15 31 36 31 103 1.68 187.4 189.87 12.41S 177 30 0 -39 18 11 15 31 47 31 103 1.67 187.4 189.85 12.39S Path coordinates are referred to WGS84 (as used by GPS). Librations Long -6.30 Lat +6.35 P +189.2 D +7.6 Illumination of moon 25%- Elongation of Moon 60 Vertical Profile Scale 2.05 km/arcsec at mean distance of moon Horizontal Scale Factor 1.88 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 8.4 5.9 7.3 8.2 8.7 9.1 9.3 9.6 10.4 5.9 7.3 8.2 8.7 9.1 9.4 9.6 12.4 5.9 7.4 8.2 8.7 9.1 9.4 9.6 14.4 5.9 7.4 8.2 8.8 9.2 9.4 9.7 16.4 6.0 7.5 8.3 8.8 9.2 9.5 9.7