Predictions for Grazing Occultation of ZC2097, 2015 Aug 21
Graze profile
Grazing Occultation of 2097 K0 Magnitude 6.8 [Red = 6.2]
Date: 2015 Aug 21 10h 59m, to 2015 Aug 21 11h 19m
Nominal site altitude 50m
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 -28 32 54 10 58 59 42 279 1.11 193.6 174.88 2.89S
135 30 0 -28 32 53 10 59 41 42 279 1.13 193.5 174.76 3.01S
136 0 0 -28 32 43 11 0 23 41 279 1.15 193.4 174.64 3.13S
136 30 0 -28 32 24 11 1 3 40 278 1.18 193.3 174.52 3.25S
137 0 0 -28 31 58 11 1 43 40 278 1.20 193.2 174.40 3.37S
137 30 0 -28 31 24 11 2 23 39 277 1.23 193.0 174.28 3.49S
138 0 0 -28 30 42 11 3 2 39 277 1.25 192.9 174.17 3.60S
138 30 0 -28 29 52 11 3 40 38 277 1.28 192.8 174.05 3.72S
139 0 0 -28 28 54 11 4 17 37 276 1.30 192.7 173.94 3.83S
139 30 0 -28 27 49 11 4 54 37 276 1.33 192.6 173.83 3.94S
140 0 0 -28 26 37 11 5 31 36 275 1.36 192.5 173.72 4.05S
140 30 0 -28 25 17 11 6 6 36 275 1.39 192.4 173.61 4.16S
141 0 0 -28 23 50 11 6 41 35 275 1.42 192.3 173.51 4.26S
141 30 0 -28 22 16 11 7 16 35 274 1.45 192.2 173.40 4.37S
142 0 0 -28 20 35 11 7 50 34 274 1.48 192.1 173.30 4.47S
142 30 0 -28 18 46 11 8 23 34 274 1.51 192.0 173.20 4.57S
143 0 0 -28 16 51 11 8 55 33 273 1.54 191.9 173.10 4.67S
143 30 0 -28 14 49 11 9 27 32 273 1.57 191.8 173.00 4.77S
144 0 0 -28 12 41 11 9 59 32 273 1.61 191.7 172.91 4.86S
144 30 0 -28 10 26 11 10 30 31 272 1.64 191.6 172.81 4.96S
145 0 0 -28 8 4 11 11 0 31 272 1.68 191.5 172.72 5.05S
145 30 0 -28 5 36 11 11 30 30 272 1.72 191.4 172.62 5.14S
146 0 0 -28 3 2 11 11 59 30 271 1.76 191.3 172.53 5.23S
146 30 0 -28 0 22 11 12 27 29 271 1.79 191.2 172.44 5.32S
147 0 0 -27 57 35 11 12 55 29 271 1.84 191.1 172.36 5.41S
147 30 0 -27 54 42 11 13 22 28 270 1.88 191.0 172.27 5.50S
148 0 0 -27 51 43 11 13 49 27 270 1.92 191.0 172.19 5.58S
148 30 0 -27 48 39 11 14 15 27 270 1.97 190.9 172.10 5.67S
149 0 0 -27 45 29 11 14 41 26 270 2.01 190.8 172.02 5.75S
149 30 0 -27 42 13 11 15 6 26 269 2.06 190.7 171.94 5.83S
150 0 0 -27 38 51 11 15 30 25 269 2.11 190.6 171.86 5.91S
150 30 0 -27 35 24 11 15 54 25 269 2.16 190.6 171.78 5.99S
151 0 0 -27 31 51 11 16 17 24 268 2.22 190.5 171.70 6.06S
151 30 0 -27 28 13 11 16 40 24 268 2.27 190.4 171.63 6.14S
152 0 0 -27 24 29 11 17 2 23 268 2.33 190.3 171.55 6.21S
152 30 0 -27 20 41 11 17 24 23 267 2.39 190.3 171.48 6.29S
153 0 0 -27 16 47 11 17 45 22 267 2.45 190.2 171.41 6.36S
153 30 0 -27 12 48 11 18 6 22 267 2.52 190.1 171.34 6.43S
154 0 0 -27 8 44 11 18 26 21 267 2.59 190.0 171.27 6.50S
154 30 0 -27 4 35 11 18 45 21 266 2.66 190.0 171.20 6.57S
155 0 0 -27 0 22 11 19 4 20 266 2.73 189.9 171.13 6.63S
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level. The path
is adjusted for the effects of refraction at low moon altitudes.
Projected diameter of star 2 meters [Estimated]
C A S S I N I R E G I O N G R A Z E
Librations Long -6.26 Lat -4.55
P +173.20 D -5.05
Illumination of moon 36%+
Elongation of Moon 74
Vertical Profile Scale 1.89 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.52 deg/min
At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
1.1 4.9 6.4 7.1 7.6 8.0 8.2 8.4
3.1 5.0 6.4 7.2 7.6 8.0 8.2 8.4
5.1 5.7 7.2 8.0 8.5 8.8 9.1 9.3
7.1 5.8 7.2 8.0 8.5 8.9 9.1 9.3
9.1 5.8 7.2 8.0 8.5 8.9 9.2 9.3
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
AU Mid 143.0 -30.6 257km 11 8 55
Brisbane 153.1 -27.5 21km 11 17 47
Lunar Limb Profile
