Predictions for Grazing Occultation of ZC 2108, 2009 Sep 22
Grazing Occultation of 2108cG2 Magnitude 6.6 [Red = 0.0]
Date: 2009 Sep 22 10h 29m, to 2009 Sep 22 10h 39m
Nominal site altitude 5m
E. Longit. Latitude U.T. Sun Moon TanZ PA AA CA
o ' " o ' " h m s Alt Alt Az o o o
135 0 0 -34 56 59 10 29 42 26 261 2.04 189.6 171.75 12.18S
135 30 0 -34 49 4 10 30 4 26 261 2.08 189.5 171.67 12.26S
136 0 0 -34 41 2 10 30 26 25 261 2.13 189.4 171.59 12.34S
136 30 0 -34 32 53 10 30 48 25 260 2.18 189.4 171.51 12.42S
137 0 0 -34 24 38 10 31 9 24 260 2.23 189.3 171.44 12.50S
137 30 0 -34 16 16 10 31 30 24 260 2.29 189.2 171.36 12.57S
138 0 0 -34 7 47 10 31 50 23 259 2.34 189.1 171.29 12.65S
138 30 0 -33 59 12 10 32 10 23 259 2.40 189.1 171.21 12.72S
139 0 0 -33 50 30 10 32 29 22 259 2.46 189.0 171.14 12.79S
139 30 0 -33 41 43 10 32 48 22 258 2.52 188.9 171.07 12.86S
140 0 0 -33 32 49 10 33 7 21 258 2.59 188.9 171.00 12.93S
140 30 0 -33 23 48 10 33 25 21 258 2.66 188.8 170.93 13.00S
141 0 0 -33 14 42 10 33 43 20 257 2.73 188.7 170.87 13.07S
141 30 0 -33 5 30 10 34 0 20 257 2.81 188.7 170.80 13.14S
142 0 0 -32 56 12 10 34 17 19 257 2.89 188.6 170.73 13.20S
142 30 0 -32 46 48 10 34 33 19 256 2.97 188.5 170.67 13.26S
143 0 0 -32 37 18 10 34 49 18 256 3.06 188.5 170.61 13.33S
143 30 0 -32 27 43 10 35 5 18 256 3.15 188.4 170.55 13.39S
144 0 0 -32 18 2 10 35 20 17 255 3.25 188.3 170.49 13.45S
144 30 0 -32 8 16 10 35 35 17 255 3.35 188.3 170.43 13.51S
145 0 0 -31 58 24 10 35 49 16 255 3.46 188.2 170.36 13.57S
145 30 0 -31 48 27 10 36 3 16 254 3.58 188.2 170.30 13.63S
146 0 0 -31 38 25 10 36 16 15 254 3.70 188.1 170.25 13.69S
146 30 0 -31 28 18 10 36 29 15 254 3.84 188.1 170.20 13.74S
147 0 0 -31 18 6 10 36 42 14 254 3.98 188.0 170.14 13.79S
147 30 0 -31 7 49 10 36 54 14 253 4.13 187.9 170.09 13.84S
148 0 0 -30 57 28 10 37 5 13 253 4.29 187.9 170.04 13.89S
148 30 0 -30 47 1 10 37 16 13 253 4.47 187.8 169.99 13.94S
149 0 0 -30 36 30 10 37 27 12 252 4.66 187.8 169.94 13.99S
149 30 0 -30 25 55 10 37 37 12 252 4.87 187.8 169.90 14.04S
150 0 0 -30 15 15 10 37 47 11 252 5.09 187.7 169.85 14.09S
150 30 0 -30 4 31 10 37 56 11 252 5.34 187.7 169.81 14.13S
151 0 0 -29 53 42 10 38 5 10 251 5.61 187.6 169.76 14.17S
151 30 0 -29 42 50 10 38 13 10 251 5.90 187.6 169.72 14.22S
152 0 0 -29 31 53 10 38 21 9 251 6.23 187.5 169.68 14.26S
152 30 0 -29 20 52 10 38 29 9 250 6.60 187.5 169.64 14.30S
153 0 0 -29 9 48 10 38 36 8 250 7.00 187.5 169.60 14.34S
153 30 0 -28 58 40 10 38 42 8 250 7.47 187.4 169.56 14.38S
154 0 0 -28 47 28 10 38 48 7 250 7.99 187.4 169.52 14.42S
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
2108 is double:
AB 7.1 7.2 0.20" 91.7 Graze path of B 0.04 km south, and 0.4 secs later compared to A
Librations Long +5.57 Lat +6.10
P +171.02 D +7.20
Illumination of moon 15%+
Elongation of Moon 46
Vertical Profile Scale 1.91 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.86 deg/min
At longitude 144.50:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
9.5 6.1 7.6 8.4 8.9 9.3 9.5 9.7
11.5 6.2 7.6 8.4 9.0 9.3 9.6 9.8
13.5 6.2 7.7 8.5 9.0 9.4 9.6 9.9
15.5 6.2 7.7 8.5 9.0 9.4 9.7 9.9
17.5 6.3 7.7 8.6 9.1 9.5 9.7 10.0
Lunar Limb Profile - Adelaide
Lunar Limb Profile - Northern NSW
