Predictions for Grazing Occultation of ZC 1940, 2007 Aug 18
Grazing Occultation of 1940 F0 Magnitude 6.9
Date 2007 August 18 (Saturday) 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
135 0 0 -33 41 12 9 36 4 47 287 0.95 30.5 10.14 6.75N
135 10 0 -33 43 14 9 36 24 46 287 0.95 30.4 10.07 6.68N
135 20 0 -33 45 15 9 36 44 46 287 0.96 30.3 10.00 6.60N
135 30 0 -33 47 13 9 37 4 46 287 0.97 30.2 9.92 6.53N
135 40 0 -33 49 11 9 37 24 46 286 0.98 30.2 9.85 6.46N
135 50 0 -33 51 6 9 37 43 46 286 0.98 30.1 9.78 6.39N
136 0 0 -33 53 0 9 38 3 45 286 0.99 30.0 9.71 6.32N
136 10 0 -33 54 52 9 38 22 45 286 1.00 30.0 9.64 6.25N
136 20 0 -33 56 43 9 38 41 45 286 1.00 29.9 9.57 6.18N
136 30 0 -33 58 31 9 39 0 45 286 1.01 29.8 9.50 6.11N
136 40 0 -34 0 19 9 39 19 44 285 1.02 29.8 9.43 6.04N
136 50 0 -34 2 4 9 39 38 44 285 1.03 29.7 9.36 5.97N
137 0 0 -34 3 48 9 39 57 44 285 1.03 29.6 9.29 5.90N
137 10 0 -34 5 31 9 40 15 44 285 1.04 29.5 9.22 5.83N
137 20 0 -34 7 12 9 40 34 44 285 1.05 29.5 9.15 5.76N
137 30 0 -34 8 51 9 40 52 43 285 1.06 29.4 9.09 5.69N
137 40 0 -34 10 29 9 41 10 43 284 1.06 29.3 9.02 5.63N
137 50 0 -34 12 5 9 41 29 43 284 1.07 29.3 8.95 5.56N
138 0 0 -34 13 39 9 41 47 43 284 1.08 29.2 8.88 5.49N
138 10 0 -34 15 12 9 42 5 43 284 1.09 29.1 8.82 5.42N
138 20 0 -34 16 44 9 42 22 42 284 1.09 29.1 8.75 5.36N
138 30 0 -34 18 14 9 42 40 42 284 1.10 29.0 8.68 5.29N
138 40 0 -34 19 42 9 42 58 42 283 1.11 28.9 8.62 5.22N
138 50 0 -34 21 9 9 43 15 42 283 1.12 28.9 8.55 5.16N
139 0 0 -34 22 35 9 43 33 42 283 1.12 28.8 8.48 5.09N
139 10 0 -34 23 58 9 43 50 41 283 1.13 28.7 8.42 5.03N
139 20 0 -34 25 21 9 44 7 41 283 1.14 28.7 8.35 4.96N
139 30 0 -34 26 42 9 44 25 41 283 1.15 28.6 8.29 4.90N
139 40 1 -34 28 1 9 44 42 41 283 1.16 28.5 8.22 4.83N
139 50 1 -34 29 19 9 44 59 41 282 1.16 28.5 8.16 4.77N
140 0 1 -34 30 36 9 45 15 40 282 1.17 28.4 8.10 4.70N
140 10 1 -34 31 51 9 45 32 40 282 1.18 28.4 8.03 4.64N
140 20 1 -34 33 5 9 45 49 40 282 1.19 28.3 7.97 4.58N
140 30 1 -34 34 17 9 46 5 40 282 1.20 28.2 7.90 4.51N
140 40 1 -34 35 28 9 46 22 40 282 1.20 28.2 7.84 4.45N
140 50 1 -34 36 37 9 46 38 40 282 1.21 28.1 7.79 4.39N
141 0 1 -34 37 45 9 46 54 39 281 1.22 28.0 7.72 4.33N
141 10 1 -34 38 52 9 47 10 39 281 1.23 28.0 7.66 4.27N
141 20 1 -34 39 57 9 47 26 39 281 1.24 27.9 7.60 4.21N
141 30 1 -34 41 1 9 47 42 39 281 1.25 27.9 7.54 4.14N
141 40 1 -34 42 3 9 47 58 39 281 1.25 27.8 7.47 4.08N
141 50 1 -34 43 4 9 48 14 38 281 1.26 27.7 7.41 4.02N
142 0 1 -34 44 4 9 48 30 38 280 1.27 27.7 7.35 3.96N
142 10 1 -34 45 2 9 48 45 38 280 1.28 27.6 7.29 3.90N
142 20 1 -34 45 59 9 49 1 38 280 1.29 27.5 7.23 3.84N
142 30 1 -34 46 55 9 49 16 38 280 1.30 27.5 7.17 3.78N
142 40 1 -34 47 49 9 49 31 37 280 1.31 27.4 7.11 3.71N
142 50 1 -34 48 42 9 49 47 37 280 1.32 27.4 7.05 3.65N
143 0 1 -34 49 34 9 50 2 37 280 1.33 27.3 6.99 3.59N
143 10 1 -34 50 24 9 50 17 37 279 1.33 27.2 6.93 3.54N
143 20 1 -34 51 13 9 50 32 37 279 1.34 27.2 6.87 3.48N
143 30 1 -34 52 1 9 50 47 36 279 1.35 27.1 6.81 3.42N
143 40 1 -34 52 47 9 51 1 36 279 1.36 27.1 6.74 3.35N
143 50 1 -34 53 32 9 51 16 36 279 1.37 27.0 6.69 3.30N
144 0 1 -34 54 16 9 51 30 36 279 1.38 27.0 6.63 3.24N
144 10 1 -34 54 58 9 51 45 36 279 1.39 26.9 6.57 3.18N
144 20 1 -34 55 40 9 51 59 36 278 1.40 26.8 6.52 3.12N
144 30 1 -34 56 20 9 52 14 35 278 1.41 26.8 6.46 3.07N
144 40 1 -34 56 58 9 52 28 35 278 1.42 26.7 6.40 3.01N
144 50 1 -34 57 36 9 52 42 35 278 1.43 26.7 6.34 2.95N
145 0 1 -34 58 12 9 52 56 35 278 1.44 26.6 6.29 2.89N
145 10 1 -34 58 47 9 53 10 35 278 1.45 26.5 6.23 2.84N
145 20 1 -34 59 21 9 53 24 34 278 1.46 26.5 6.17 2.78N
145 30 1 -34 59 53 9 53 38 34 277 1.47 26.4 6.12 2.73N
145 40 1 -35 0 24 9 53 51 34 277 1.48 26.4 6.06 2.67N
145 50 1 -35 0 54 9 54 5 34 277 1.49 26.3 6.01 2.61N
146 0 1 -35 1 23 9 54 18 34 277 1.50 26.3 5.95 2.56N
146 10 1 -35 1 51 9 54 32 34 277 1.51 26.2 5.90 2.50N
146 20 1 -35 2 17 9 54 45 33 277 1.52 26.2 5.84 2.45N
146 30 1 -35 2 42 9 54 59 33 277 1.53 26.1 5.79 2.39N
146 40 1 -35 3 6 9 55 12 33 277 1.54 26.0 5.73 2.34N
146 50 1 -35 3 29 9 55 25 33 276 1.55 26.0 5.68 2.28N
147 0 1 -35 3 50 9 55 38 33 276 1.56 25.9 5.62 2.23N
147 10 1 -35 4 11 9 55 51 32 276 1.57 25.9 5.57 2.18N
147 20 1 -35 4 30 9 56 4 32 276 1.58 25.8 5.52 2.12N
147 30 1 -35 4 48 9 56 16 32 276 1.60 25.8 5.47 2.08N
147 40 1 -35 5 5 9 56 29 32 276 1.61 25.7 5.42 2.03N
147 50 1 -35 5 21 9 56 42 32 276 1.62 25.7 5.37 1.97N
148 0 1 -35 5 35 9 56 54 32 275 1.63 25.6 5.31 1.92N
148 10 1 -35 5 49 9 57 7 31 275 1.64 25.6 5.26 1.87N
148 20 1 -35 6 1 9 57 19 31 275 1.65 25.5 5.21 1.82N
148 30 1 -35 6 12 9 57 32 31 275 1.66 25.5 5.16 1.77N
148 40 2 -35 6 22 9 57 44 31 275 1.68 25.4 5.11 1.71N
148 50 2 -35 6 31 9 57 56 31 275 1.69 25.4 5.06 1.66N
149 0 2 -35 6 39 9 58 8 30 275 1.70 25.3 5.00 1.61N
149 10 2 -35 6 45 9 58 20 30 275 1.71 25.3 4.95 1.56N
149 20 2 -35 6 51 9 58 32 30 274 1.72 25.2 4.90 1.51N
149 30 2 -35 6 55 9 58 44 30 274 1.74 25.2 4.85 1.46N
149 40 2 -35 6 59 9 58 55 30 274 1.75 25.1 4.80 1.41N
149 50 2 -35 7 1 9 59 7 30 274 1.76 25.1 4.75 1.36N
150 0 2 -35 7 2 9 59 19 29 274 1.77 25.0 4.70 1.31N
150 10 2 -35 7 2 9 59 30 29 274 1.79 25.0 4.65 1.26N
150 20 2 -35 7 1 9 59 42 29 274 1.80 24.9 4.60 1.21N
150 30 2 -35 6 59 9 59 53 29 273 1.81 24.9 4.56 1.16N
150 40 2 -35 6 55 10 0 4 29 273 1.83 24.8 4.51 1.11N
150 50 2 -35 6 51 10 0 16 29 273 1.84 24.8 4.46 1.07N
151 0 2 -35 6 46 10 0 27 28 273 1.85 24.7 4.41 1.02N
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 -0.60 Lat +5.03
P +4.4 D -4.8
Illumination of moon 26%+
Elongation of Moon 61
Vertical Profile Scale 1.88 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.56 deg/min
Limiting Magnitudes for various telescope apertures (in mm)
CA\Tdia 50 100 150 200 250 300 350
-3.0 3.3 4.6 5.3 5.8 6.0 6.2 6.3
-1.0 3.3 4.6 5.3 5.8 6.0 6.2 6.3
1.0 5.0 6.5 7.2 7.7 8.0 8.3 8.5
3.0 5.0 6.5 7.2 7.7 8.1 8.3 8.5
5.0 5.8 7.3 8.1 8.6 9.0 9.2 9.4
Lunar Limb Profile for graze near Adelaide
Lunar Limb Profile for graze near Canberra
