Grazing Occultation of 186138 F5 Magnitude 8.5 Date 2006 November 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 113 0 0 -22 35 41 11 56 38 16 245 3.58 167.2 167.45 20.79S 113 10 0 -22 29 30 11 56 45 15 245 3.63 167.3 167.45 20.78S 113 20 0 -22 23 19 11 56 51 15 245 3.69 167.3 167.46 20.78S 113 30 0 -22 17 8 11 56 58 15 245 3.74 167.3 167.46 20.77S 113 40 0 -22 10 57 11 57 4 15 245 3.79 167.3 167.47 20.77S 113 50 0 -22 4 47 11 57 10 15 245 3.85 167.3 167.48 20.76S 114 0 0 -21 58 37 11 57 16 14 245 3.91 167.3 167.48 20.75S 114 10 0 -21 52 28 11 57 22 14 245 3.97 167.3 167.49 20.75S 114 20 0 -21 46 19 11 57 28 14 245 4.03 167.3 167.50 20.74S 114 30 0 -21 40 10 11 57 34 14 245 4.09 167.3 167.50 20.73S 114 40 0 -21 34 2 11 57 40 14 244 4.15 167.3 167.51 20.73S 114 50 0 -21 27 54 11 57 45 13 244 4.22 167.3 167.52 20.72S 115 0 0 -21 21 47 11 57 51 13 244 4.29 167.3 167.52 20.71S 115 10 0 -21 15 40 11 57 56 13 244 4.36 167.3 167.53 20.71S 115 20 0 -21 9 33 11 58 2 13 244 4.43 167.3 167.54 20.70S 115 30 0 -21 3 27 11 58 7 13 244 4.50 167.3 167.54 20.69S 115 40 0 -20 57 21 11 58 12 12 244 4.58 167.3 167.55 20.68S 115 50 0 -20 51 15 11 58 18 12 244 4.66 167.4 167.56 20.68S 116 0 0 -20 45 10 11 58 23 12 244 4.74 167.4 167.57 20.67S Path coordinates are referred to WGS84 (as used by GPS). Librations Long -5.95 Lat +6.22 P +167.0 D +5.0 Illumination of moon 7%+ Elongation of Moon 30 Vertical Profile Scale 1.96 km/arcsec at mean distance of moon Horizontal Scale Factor 2.02 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 16.7 7.0 8.4 9.3 9.8 10.2 10.5 10.7 18.7 7.0 8.5 9.3 9.8 10.2 10.5 10.7 20.7 7.0 8.5 9.3 9.8 10.2 10.5 10.8 22.7 7.0 8.5 9.3 9.9 10.3 10.6 10.8 24.7 7.0 8.5 9.3 9.9 10.3 10.6 10.8