Predictions for Grazing Occultation of ZC3474, 2015 May 13
Graze profile
Grazing Occultation of 3474 A2 Magnitude 5.9 [Red = 5.8]
R3474 = 14 Piscium
Date: 2015 May 13 17h 18m, to 2015 May 13 17h 22m
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 -36 31 27 17 17 30 2 90 26.91 161.9 186.67 4.16S
135 30 0 -36 31 40 17 17 30 3 90 22.62 161.8 186.62 4.10S
136 0 0 -36 31 49 17 17 31 3 89 19.50 161.8 186.56 4.05S
136 30 0 -36 31 54 17 17 32 3 89 17.13 161.7 186.50 3.99S
137 0 0 -36 31 54 17 17 33 4 89 15.27 161.7 186.45 3.93S
137 30 0 -36 31 50 17 17 35 4 88 13.77 161.6 186.39 3.88S
138 0 0 -36 31 41 17 17 36 5 88 12.53 161.5 186.33 3.82S
138 30 0 -36 31 28 17 17 38 5 88 11.50 161.5 186.27 3.76S
139 0 0 -36 31 10 17 17 41 5 87 10.62 161.4 186.21 3.70S
139 30 0 -36 30 47 17 17 44 6 87 9.86 161.4 186.15 3.64S
140 0 0 -36 30 21 17 17 47 6 87 9.20 161.3 186.09 3.58S
140 30 0 -36 29 49 17 17 50 7 87 8.62 161.2 186.03 3.52S
141 0 0 -36 29 13 17 17 54 7 86 8.11 161.2 185.97 3.46S
141 30 0 -36 28 32 17 17 58 7 86 7.65 161.1 185.91 3.40S
142 0 0 -36 27 47 17 18 2 8 86 7.24 161.1 185.85 3.34S
142 30 0 -36 26 57 17 18 7 8 85 6.87 161.0 185.79 3.27S
143 0 0 -36 26 2 17 18 12 9 85 6.53 160.9 185.72 3.21S
143 30 0 -36 25 2 17 18 17 9 85 6.23 160.9 185.66 3.15S
144 0 0 -36 23 58 17 18 23 10 84 5.95 160.8 185.60 3.08S
144 30 0 -36 22 48 17 18 29 10 84 5.69 160.7 185.53 3.02S
145 0 0 -36 21 34 17 18 35 10 84 5.45 160.7 185.47 2.95S
145 30 0 -36 20 15 17 18 42 11 83 5.23 160.6 185.40 2.89S
146 0 0 -36 18 50 17 18 49 11 83 5.03 160.5 185.33 2.82S
146 30 0 -36 17 21 17 18 56 12 83 4.84 160.5 185.27 2.75S
147 0 0 -36 15 46 17 19 4 12 82 4.66 160.4 185.20 2.69S
147 30 0 -36 14 7 17 19 12 13 82 4.50 160.3 185.13 2.62S
148 0 0 -36 12 22 17 19 21 13 82 4.34 160.3 185.06 2.55S
148 30 0 -36 10 32 17 19 30 13 82 4.20 160.2 184.99 2.48S
149 0 0 -36 8 36 17 19 39 14 81 4.06 160.1 184.92 2.41S
149 30 0 -36 6 36 17 19 49 14 81 3.93 160.1 184.85 2.34S
150 0 0 -36 4 30 17 19 59 15 81 3.81 160.0 184.78 2.27S
150 30 0 -36 2 19 17 20 9 15 80 3.69 159.9 184.71 2.20S
151 0 0 -36 0 2 17 20 20 16 80 3.58 159.9 184.64 2.12S
151 30 0 -35 57 39 17 20 31 16 80 3.48 159.8 184.56 2.05S
152 0 0 -35 55 11 17 20 43 16 79 3.38 159.7 184.49 1.98S
152 30 0 -35 52 38 17 20 54 17 79 3.29 159.6 184.42 1.90S
153 0 0 -35 49 58 17 21 7 17 79 3.20 159.6 184.34 1.83S
153 30 0 -35 47 13 17 21 20 18 78 3.11 159.5 184.27 1.75S
154 0 0 -35 44 22 17 21 33 18 78 3.03 159.4 184.19 1.68S
154 30 0 -35 41 26 17 21 46 19 78 2.95 159.3 184.11 1.60S
155 0 0 -35 38 23 17 22 0 19 77 2.87 159.3 184.03 1.52S
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.
C A S S I N I R E G I O N G R A Z E
Librations Long -0.14 Lat -2.07
P +185.47 D -1.78
Illumination of moon 24%-
Elongation of Moon 59
Vertical Profile Scale 1.96 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.96 deg/min
At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
-1.0 2.6 3.9 4.4 4.7 4.9 5.0 5.0
1.0 4.3 5.6 6.3 6.7 7.0 7.1 7.3
3.0 4.3 5.7 6.4 6.8 7.0 7.2 7.3
5.0 4.4 5.8 6.5 6.9 7.1 7.3 7.4
7.0 5.2 6.7 7.4 7.9 8.2 8.4 8.5
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
AU Mid 143.0 -30.6 647km 17 18 12
Canberra 149.2 -35.3 94km 17 19 42
Sydney 151.1 -33.8 239km 17 20 21
Lunar Limb Profile
