Predictions for Grazing Occultation of ZC2880, 2015 May 9
Graze profile
Grazing Occultation of 2880 F3 Magnitude 5.1 [Red = 4.9]
R2880 = 55 Sagittarii
Date: 2015 May 09 12h 56m, to 2015 May 09 13h 1m
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 -33 5 13 12 55 37 1 109 86.75 177.4 187.89 9.79S
135 30 0 -33 14 7 12 55 38 1 109 51.74 177.4 187.88 9.78S
136 0 0 -33 22 58 12 55 39 2 108 36.84 177.4 187.87 9.77S
136 30 0 -33 31 48 12 55 41 2 108 28.60 177.4 187.86 9.76S
137 0 0 -33 40 36 12 55 43 2 108 23.37 177.4 187.85 9.75S
137 30 0 -33 49 23 12 55 45 3 107 19.75 177.3 187.84 9.74S
138 0 0 -33 58 8 12 55 48 3 107 17.10 177.3 187.82 9.73S
138 30 0 -34 6 52 12 55 51 4 107 15.07 177.3 187.81 9.72S
139 0 0 -34 15 34 12 55 54 4 107 13.47 177.3 187.80 9.70S
139 30 0 -34 24 15 12 55 58 5 106 12.17 177.3 187.78 9.69S
140 0 0 -34 32 54 12 56 2 5 106 11.10 177.3 187.77 9.68S
140 30 0 -34 41 32 12 56 7 6 106 10.20 177.3 187.76 9.66S
141 0 0 -34 50 8 12 56 12 6 105 9.44 177.3 187.74 9.65S
141 30 0 -34 58 43 12 56 18 7 105 8.78 177.2 187.72 9.63S
142 0 0 -35 7 16 12 56 24 7 105 8.20 177.2 187.71 9.62S
142 30 0 -35 15 47 12 56 30 7 104 7.69 177.2 187.69 9.60S
143 0 0 -35 24 17 12 56 37 8 104 7.25 177.2 187.67 9.58S
143 30 0 -35 32 44 12 56 44 8 104 6.84 177.2 187.66 9.56S
144 0 0 -35 41 10 12 56 51 9 104 6.49 177.2 187.64 9.54S
144 30 0 -35 49 34 12 56 59 9 103 6.16 177.1 187.62 9.53S
145 0 0 -35 57 56 12 57 8 10 103 5.87 177.1 187.60 9.51S
145 30 0 -36 6 15 12 57 16 10 103 5.60 177.1 187.58 9.48S
146 0 0 -36 14 33 12 57 26 11 102 5.35 177.1 187.56 9.46S
146 30 0 -36 22 48 12 57 35 11 102 5.13 177.0 187.53 9.44S
147 0 0 -36 31 1 12 57 45 11 102 4.92 177.0 187.51 9.42S
147 30 0 -36 39 12 12 57 56 12 101 4.73 177.0 187.49 9.40S
148 0 0 -36 47 20 12 58 7 12 101 4.55 177.0 187.46 9.37S
148 30 0 -36 55 26 12 58 18 13 101 4.38 176.9 187.43 9.34S
149 0 0 -37 3 29 12 58 30 13 100 4.23 176.9 187.41 9.32S
149 30 0 -37 11 30 12 58 42 14 100 4.08 176.9 187.38 9.29S
150 0 0 -37 19 28 12 58 54 14 100 3.94 176.9 187.35 9.26S
150 30 0 -37 27 23 12 59 7 15 99 3.82 176.8 187.33 9.23S
151 0 0 -37 35 16 12 59 21 15 99 3.70 176.8 187.30 9.21S
151 30 0 -37 43 6 12 59 34 16 99 3.58 176.8 187.27 9.18S
152 0 0 -37 50 52 12 59 48 16 98 3.48 176.8 187.24 9.15S
152 30 0 -37 58 36 13 0 3 17 98 3.37 176.7 187.21 9.12S
153 0 0 -38 6 16 13 0 18 17 97 3.28 176.7 187.18 9.09S
153 30 0 -38 13 53 13 0 33 17 97 3.19 176.7 187.15 9.05S
154 0 0 -38 21 27 13 0 49 18 97 3.10 176.6 187.11 9.02S
154 30 0 -38 28 58 13 1 5 18 96 3.02 176.6 187.08 8.99S
155 0 0 -38 36 26 13 1 22 19 96 2.94 176.6 187.05 8.95S
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 1 meters [CHARM/CADARS, 1 measures]
Librations Long -3.94 Lat -6.88
P +188.08 D -6.04
Illumination of moon 70%-
Elongation of Moon 114
Vertical Profile Scale 2.07 km/arcsec at mean distance of moon
Horizontal Scale Factor 2.03 deg/min
At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
5.5 3.9 5.1 5.7 6.1 6.3 6.4 6.5
7.5 4.4 5.7 6.3 6.6 6.8 7.0 7.0
9.5 4.4 5.7 6.3 6.6 6.8 7.0 7.1
11.5 4.4 5.7 6.3 6.7 6.9 7.0 7.1
13.5 4.4 5.7 6.3 6.7 6.9 7.0 7.1
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Bendigo 144.3 -36.8 107km 12 56 57
Canberra 149.2 -35.3 192km 12 58 33
Melbourne 145.0 -37.8 195km 12 57 7
Lunar Limb Profile
