Grazing Occultation of 2039 A0 Magnitude 5.5 Date 2007 August 19 (Sunday) 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 150 0 0 -27 27 52 9 5 3 52 275 0.77 25.7 7.31 4.79N 150 10 0 -27 29 15 9 5 27 52 275 0.78 25.6 7.22 4.71N 150 20 0 -27 30 35 9 5 52 52 275 0.78 25.5 7.14 4.62N 150 30 0 -27 31 53 9 6 16 52 275 0.79 25.4 7.05 4.53N 150 40 0 -27 33 10 9 6 40 51 275 0.80 25.3 6.96 4.45N 150 50 0 -27 34 24 9 7 5 51 275 0.80 25.2 6.88 4.36N 151 0 0 -27 35 37 9 7 29 51 275 0.81 25.2 6.79 4.28N 151 10 0 -27 36 47 9 7 52 51 275 0.82 25.1 6.71 4.19N 151 20 0 -27 37 56 9 8 16 51 274 0.82 25.0 6.63 4.11N 151 30 0 -27 39 3 9 8 40 50 274 0.83 24.9 6.54 4.03N 151 40 0 -27 40 8 9 9 3 50 274 0.84 24.8 6.46 3.94N 151 50 0 -27 41 11 9 9 26 50 274 0.84 24.7 6.38 3.86N 152 0 0 -27 42 13 9 9 50 50 274 0.85 24.7 6.29 3.78N 152 10 0 -27 43 12 9 10 13 49 274 0.86 24.6 6.21 3.70N 152 20 0 -27 44 10 9 10 35 49 274 0.86 24.5 6.13 3.61N 152 30 0 -27 45 6 9 10 58 49 274 0.87 24.4 6.05 3.53N 152 40 0 -27 46 0 9 11 21 49 273 0.88 24.3 5.97 3.45N 152 50 0 -27 46 52 9 11 43 48 273 0.89 24.2 5.89 3.37N 153 0 0 -27 47 42 9 12 6 48 273 0.89 24.2 5.81 3.29N 153 10 0 -27 48 31 9 12 28 48 273 0.90 24.1 5.73 3.21N 153 20 0 -27 49 18 9 12 50 48 273 0.91 24.0 5.65 3.13N Path coordinates are referred to WGS84 (as used by GPS). C A S S I N I R E G I O N G R A Z E Librations Long -1.70 Lat +5.94 P +5.5 D -5.8 Illumination of moon 34%+ Elongation of Moon 72 Vertical Profile Scale 1.86 km/arcsec at mean distance of moon Horizontal Scale Factor 1.31 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 -0.9 3.3 4.7 5.5 5.9 6.3 6.5 6.6 1.1 5.1 6.6 7.4 7.9 8.3 8.5 8.7 3.1 5.1 6.6 7.4 7.9 8.3 8.6 8.8 5.1 6.0 7.4 8.2 8.8 9.2 9.5 9.7 7.1 6.0 7.4 8.3 8.8 9.2 9.5 9.7