Predictions for Grazing Occultation of ZC2495, 2016 May 23
Graze profile
Grazing Occultation of 2495SA0 Magnitude 6.0 [Red = 5.9]
Date: 2016 May 23 10h 7m, to 2016 May 23 10h 23m
Nominal site altitude 100m
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 50 8.3 10 7 27 9 105 6.30 190.4 186.61 23.28S
135 30 0 -37 1 19.9 10 7 39 9 105 5.98 190.4 186.63 23.30S
136 0 0 -37 12 34.6 10 7 51 10 105 5.69 190.5 186.65 23.32S
136 30 0 -37 23 52.7 10 8 4 10 104 5.43 190.5 186.67 23.34S
137 0 0 -37 35 13.9 10 8 18 11 104 5.19 190.5 186.70 23.37S
137 30 0 -37 46 38.2 10 8 32 11 104 4.97 190.5 186.72 23.39S
138 0 0 -37 58 5.6 10 8 47 12 103 4.76 190.5 186.74 23.41S
138 30 0 -38 9 35.9 10 9 2 12 103 4.57 190.6 186.76 23.43S
139 0 0 -38 21 9.0 10 9 18 13 103 4.40 190.6 186.77 23.44S
139 30 0 -38 32 44.9 10 9 35 13 102 4.23 190.6 186.79 23.46S
140 0 0 -38 44 23.5 10 9 52 14 102 4.08 190.6 186.81 23.48S
140 30 0 -38 56 4.6 10 10 10 14 102 3.94 190.6 186.83 23.50S
141 0 0 -39 7 48.2 10 10 28 15 101 3.80 190.7 186.84 23.51S
141 30 0 -39 19 35.5 10 10 47 15 101 3.68 190.7 186.86 23.53S
142 0 0 -39 31 23.2 10 11 6 16 100 3.56 190.7 186.87 23.54S
142 30 0 -39 43 13.4 10 11 27 16 100 3.45 190.7 186.88 23.56S
143 0 0 -39 55 5.6 10 11 47 17 100 3.35 190.7 186.90 23.57S
143 30 0 -40 6 59.6 10 12 8 17 99 3.25 190.7 186.91 23.58S
144 0 0 -40 18 55.0 10 12 30 18 99 3.15 190.7 186.92 23.59S
144 30 0 -40 30 52.5 10 12 53 18 98 3.06 190.7 186.93 23.60S
145 0 0 -40 42 51.6 10 13 16 19 98 2.98 190.7 186.94 23.61S
145 30 0 -40 54 52.0 10 13 39 19 97 2.90 190.8 186.95 23.62S
146 0 0 -41 6 53.7 10 14 3 19 97 2.82 190.8 186.96 23.63S
146 30 0 -41 18 56.5 10 14 28 20 97 2.75 190.8 186.96 23.64S
147 0 0 -41 31 0.3 10 14 53 20 96 2.68 190.8 186.97 23.64S
147 30 0 -41 43 5.0 10 15 19 21 96 2.62 190.8 186.97 23.65S
148 0 0 -41 55 10.3 10 15 45 21 95 2.55 190.8 186.98 23.65S
148 30 0 -42 7 16.3 10 16 12 22 95 2.49 190.8 186.98 23.65S
149 0 0 -42 19 22.6 10 16 39 22 94 2.43 190.8 186.98 23.66S
149 30 0 -42 31 29.1 10 17 7 23 94 2.38 190.8 186.98 23.66S
150 0 0 -42 43 35.7 10 17 36 23 93 2.33 190.8 186.98 23.66S
150 30 0 -42 55 42.1 10 18 5 24 93 2.27 190.8 186.98 23.66S
151 0 0 -43 7 48.4 10 18 34 24 92 2.23 190.8 186.98 23.66S
151 30 0 -43 19 54.2 10 19 4 25 92 2.18 190.8 186.98 23.65S
152 0 0 -43 31 59.5 10 19 35 25 91 2.13 190.8 186.97 23.65S
152 30 0 -43 44 4.0 10 20 6 26 91 2.09 190.8 186.97 23.64S
153 0 0 -43 56 7.6 10 20 37 26 90 2.05 190.8 186.96 23.64S
153 30 0 -44 8 10.2 10 21 9 26 90 2.01 190.8 186.96 23.63S
154 0 0 -44 20 11.5 10 21 41 27 89 1.97 190.8 186.95 23.62S
154 30 0 -44 32 11.5 10 22 14 27 88 1.93 190.7 186.94 23.61S
155 0 0 -44 44 9.9 10 22 48 28 88 1.89 190.7 186.93 23.60S
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.
2495 is triple:
Graze prediction is based on the mean position of AB 6.34 7.56 2.42" 263.4
(BU 126) Graze path of A approximately 0.4 km south, and 1.2 secs later compared to prediction
Graze path of B approximately 1.3 km north, and 3.6 secs earlier compared to prediction
- refer to graze profile for exact distances
AB 6.34 7.56 2.42" 263.4 (BU 126) Graze path of B approximately 1.7 km north, and 4.7 secs earlier compared to A
- refer to graze profile for exact distances
AC 6.3 11.2 12.1" 137.5 (BU 126) Graze path of C approximately 16.8 km north, and 19.8 secs later compared to A
- refer to graze profile for exact distances
C A S S I N I R E G I O N G R A Z E
Librations Long -3.74 Lat -7.13
P +187.42 D -6.36
Illumination of moon 97%-
Elongation of Moon 161
Vertical Profile Scale approx. 2.41 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.87 deg/min
At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
19.6 4.0 5.3 6.0 6.4 6.6 6.8 6.9
21.6 4.1 5.4 6.1 6.5 6.7 6.8 7.0
23.6 4.3 5.6 6.3 6.7 6.9 7.1 7.2
25.6 4.5 5.8 6.5 6.9 7.1 7.3 7.4
27.6 4.7 6.1 6.8 7.2 7.4 7.6 7.7
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Lunar Limb Profile
