Predictions for Grazing Occultation of ZC3285, 2015 Jun 8
Graze profile
Grazing Occultation of 3285cG6 Magnitude 5.9 [Red = 5.4]
Date: 2015 Jun 08 15h 41m, to 2015 Jun 08 15h 59m
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 23 41 15 41 6 21 85 2.55 163.1 185.77 5.07S
135 30 0 -32 23 49 15 41 24 22 85 2.49 163.0 185.69 5.00S
136 0 0 -32 23 51 15 41 41 22 84 2.43 162.9 185.61 4.92S
136 30 0 -32 23 48 15 41 59 23 84 2.37 162.9 185.53 4.84S
137 0 0 -32 23 39 15 42 18 23 84 2.32 162.8 185.45 4.76S
137 30 0 -32 23 23 15 42 36 24 83 2.26 162.7 185.37 4.68S
138 0 0 -32 23 2 15 42 56 24 83 2.21 162.6 185.29 4.60S
138 30 0 -32 22 35 15 43 16 25 83 2.16 162.5 185.20 4.51S
139 0 0 -32 22 1 15 43 36 25 82 2.11 162.5 185.12 4.43S
139 30 0 -32 21 21 15 43 57 26 82 2.07 162.4 185.04 4.34S
140 0 0 -32 20 35 15 44 18 26 82 2.02 162.3 184.95 4.26S
140 30 0 -32 19 43 15 44 40 27 81 1.98 162.2 184.86 4.17S
141 0 0 -32 18 44 15 45 2 27 81 1.94 162.1 184.78 4.08S
141 30 0 -32 17 39 15 45 25 28 80 1.90 162.0 184.69 4.00S
142 0 0 -32 16 27 15 45 48 28 80 1.86 161.9 184.60 3.91S
142 30 0 -32 15 9 15 46 11 29 80 1.82 161.8 184.51 3.82S
143 0 0 -32 13 44 15 46 36 29 79 1.78 161.8 184.42 3.73S
143 30 0 -32 12 12 15 47 0 30 79 1.75 161.7 184.32 3.63S
144 0 0 -32 10 33 15 47 25 30 79 1.71 161.6 184.23 3.54S
144 30 0 -32 8 48 15 47 51 31 78 1.68 161.5 184.14 3.45S
145 0 0 -32 6 55 15 48 17 31 78 1.64 161.4 184.04 3.35S
145 30 0 -32 4 56 15 48 44 32 78 1.61 161.3 183.94 3.25S
146 0 0 -32 2 49 15 49 11 32 77 1.58 161.2 183.85 3.16S
146 30 0 -32 0 35 15 49 39 33 77 1.55 161.1 183.75 3.06S
147 0 0 -31 58 14 15 50 7 33 76 1.52 161.0 183.65 2.96S
147 30 0 -31 55 45 15 50 36 34 76 1.49 160.9 183.55 2.86S
148 0 0 -31 53 9 15 51 6 34 76 1.46 160.8 183.46 2.77S
148 30 0 -31 50 26 15 51 36 35 75 1.43 160.7 183.36 2.67S
149 0 0 -31 47 35 15 52 6 36 75 1.40 160.6 183.25 2.56S
149 30 0 -31 44 36 15 52 37 36 74 1.37 160.5 183.15 2.46S
150 0 0 -31 41 29 15 53 9 37 74 1.35 160.4 183.04 2.35S
150 30 0 -31 38 15 15 53 41 37 74 1.32 160.3 182.94 2.25S
151 0 0 -31 34 52 15 54 14 38 73 1.30 160.2 182.83 2.14S
151 30 0 -31 31 22 15 54 47 38 73 1.27 160.1 182.72 2.03S
152 0 0 -31 27 43 15 55 21 39 72 1.25 160.0 182.61 1.92S
152 30 0 -31 23 57 15 55 56 39 72 1.22 159.8 182.50 1.81S
153 0 0 -31 20 1 15 56 31 40 72 1.20 159.7 182.39 1.70S
153 30 0 -31 15 58 15 57 7 40 71 1.18 159.6 182.27 1.59S
154 0 0 -31 11 46 15 57 43 41 71 1.15 159.5 182.16 1.47S
154 30 0 -31 7 25 15 58 20 41 70 1.13 159.4 182.05 1.36S
155 0 0 -31 2 56 15 58 58 42 70 1.11 159.3 181.93 1.24S
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]
3285 is double:
This next pair is not confirmed
** 6.9 6.9 0.10" 90.0 (OCc 6) Graze path of ? 0.06 km north, and 0.2 secs later compared to the primary
C A S S I N I R E G I O N G R A Z E
Librations Long -0.42 Lat -3.72
P +184.07 D -3.42
Illumination of moon 61%-
Elongation of Moon 102
Vertical Profile Scale 1.92 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.67 deg/min
At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
-0.6 2.9 4.3 5.0 5.4 5.7 5.9 6.0
1.4 4.7 6.1 6.9 7.3 7.6 7.9 8.0
3.4 4.7 6.1 6.9 7.4 7.7 7.9 8.0
5.4 5.5 7.0 7.7 8.2 8.5 8.8 8.9
7.4 5.5 7.0 7.7 8.2 8.6 8.8 8.9
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
AU Mid 143.0 -30.6 180km 15 46 36
Newcastle 151.7 -33.0 160km 15 55 2
Pt Macquarie 152.8 -31.4 5km 15 56 19
Sydney 151.1 -33.8 248km 15 54 18
Lunar Limb Profile
