Predictions for Grazing Occultation of ZC2969, 2015 Aug 27
Graze profile
Grazing Occultation of 2969SA5 Magnitude 3.1 [Red = 2.6] s
R2969 = Dabih Major = beta Capricorni
Date: 2015 Aug 27 15h 54m, to 2015 Aug 27 16h 23m
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 -32 46 41 15 53 31 47 284 0.94 161.0 175.24 14.00S
135 30 0 -32 32 58 15 54 27 46 283 0.96 161.0 175.22 14.02S
136 0 0 -32 19 13 15 55 22 46 282 0.98 161.0 175.21 14.03S
136 30 0 -32 5 28 15 56 17 45 282 1.00 161.0 175.21 14.03S
137 0 0 -31 51 40 15 57 12 44 281 1.02 161.0 175.20 14.03S
137 30 0 -31 37 52 15 58 5 44 280 1.04 161.0 175.20 14.04S
138 0 0 -31 24 4 15 58 59 43 279 1.06 161.0 175.20 14.04S
138 30 0 -31 10 15 15 59 52 43 279 1.08 161.0 175.20 14.03S
139 0 0 -30 56 26 16 0 44 42 278 1.10 161.0 175.21 14.03S
139 30 0 -30 42 37 16 1 35 42 277 1.12 161.0 175.21 14.02S
140 0 0 -30 28 48 16 2 26 41 277 1.15 161.0 175.22 14.02S
140 30 0 -30 15 0 16 3 17 40 276 1.17 161.0 175.23 14.01S
141 0 0 -30 1 13 16 4 7 40 276 1.20 161.0 175.24 14.00S
141 30 0 -29 47 27 16 4 56 39 275 1.22 161.1 175.25 13.98S
142 0 0 -29 33 42 16 5 45 39 274 1.25 161.1 175.27 13.97S
142 30 0 -29 19 59 16 6 33 38 274 1.27 161.1 175.28 13.95S
143 0 0 -29 6 18 16 7 20 38 273 1.30 161.1 175.30 13.93S
143 30 0 -28 52 38 16 8 7 37 273 1.33 161.1 175.32 13.91S
144 0 0 -28 39 1 16 8 52 36 272 1.36 161.1 175.34 13.89S
144 30 0 -28 25 26 16 9 38 36 272 1.39 161.2 175.37 13.87S
145 0 0 -28 11 54 16 10 22 35 271 1.42 161.2 175.39 13.85S
145 30 0 -27 58 25 16 11 6 35 271 1.45 161.2 175.41 13.82S
146 0 0 -27 44 58 16 11 49 34 270 1.49 161.2 175.44 13.79S
146 30 0 -27 31 35 16 12 32 33 270 1.52 161.3 175.47 13.77S
147 0 0 -27 18 15 16 13 13 33 269 1.56 161.3 175.50 13.74S
147 30 0 -27 4 58 16 13 54 32 269 1.59 161.3 175.53 13.71S
148 0 0 -26 51 46 16 14 34 32 269 1.63 161.4 175.56 13.67S
148 30 0 -26 38 37 16 15 14 31 268 1.67 161.4 175.60 13.64S
149 0 0 -26 25 32 16 15 52 30 268 1.71 161.4 175.63 13.61S
149 30 0 -26 12 31 16 16 30 30 267 1.75 161.5 175.67 13.57S
150 0 0 -25 59 34 16 17 7 29 267 1.79 161.5 175.70 13.53S
150 30 0 -25 46 42 16 17 44 29 267 1.84 161.5 175.74 13.50S
151 0 0 -25 33 54 16 18 19 28 266 1.89 161.6 175.78 13.46S
151 30 0 -25 21 11 16 18 54 27 266 1.93 161.6 175.82 13.42S
152 0 0 -25 8 33 16 19 28 27 265 1.98 161.7 175.86 13.38S
152 30 0 -24 56 0 16 20 2 26 265 2.04 161.7 175.90 13.34S
153 0 0 -24 43 31 16 20 34 26 265 2.09 161.7 175.94 13.29S
153 30 0 -24 31 8 16 21 6 25 264 2.15 161.8 175.99 13.25S
154 0 0 -24 18 50 16 21 37 24 264 2.21 161.8 176.03 13.21S
154 30 0 -24 6 36 16 22 7 24 264 2.27 161.9 176.08 13.16S
155 0 0 -23 54 29 16 22 37 23 263 2.33 161.9 176.12 13.12S
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 7 meters [CHARM/CADARS, 12 measures]
2969 is variable:
2969 = NSV 25105, 3.05, range 0.00, 3V, Type VAR, Period 1.40657 days
2969 is multiple:
Aa,Ab 3.1 4.9 0.10" 210.2 (BLA 7) Graze path of Ab 0.14 km north, and 0.1 secs earlier compared to Aa
AD 3.2 13.7 117" 291.7 (HJ 2948) Graze path of D 167.29 km south, and 178.5 secs earlier compared to A
AB 3.2 6.1 205" 267.0 (STFA 52) Graze path of B 123.53 km south, and 398.4 secs earlier compared to A
AC 3.2 8.8 226" 133.0 (STFA 52) Graze path of C 440.18 km north, and 215.5 secs later compared to A
C A S S I N I R E G I O N G R A Z E
Librations Long -5.74 Lat -6.16
P +175.98 D -6.34
Illumination of moon 93%+
Elongation of Moon 150
Vertical Profile Scale 2.11 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.75 deg/min
At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
9.8 4.4 5.8 6.6 7.0 7.3 7.5 7.7
11.8 4.4 5.8 6.6 7.0 7.3 7.5 7.7
13.8 4.6 6.1 6.8 7.3 7.6 7.8 7.9
15.8 5.1 6.5 7.2 7.7 8.0 8.3 8.4
17.8 5.3 6.7 7.5 8.0 8.3 8.5 8.7
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
AU Mid 143.0 -30.6 147km 16 7 20
Brisbane 153.1 -27.5 278km 16 20 37
Bundaberg 152.3 -24.8 21km 16 19 51
Rockhampton 150.5 -23.4 243km 16 17 44
Lunar Limb Profile
