Predictions for Grazing Occultation of ZC2128, 2016 Feb 28
Graze profile
Grazing Occultation of 2128 G7 Magnitude 5.8 [Red = 5.3]
R2128 = 13 Librae
Date: 2016 Feb 28 16h 34m, to 2016 Feb 28 17h 1m
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
110 0 0 -31 14 39.5 16 34 17 25 89 2.10 201.0 183.37 6.51S
110 30 0 -31 27 20.3 16 34 57 26 88 2.05 201.1 183.43 6.57S
111 0 0 -31 40 9.0 16 35 39 27 88 2.00 201.2 183.49 6.63S
111 30 0 -31 53 5.3 16 36 21 27 88 1.95 201.2 183.54 6.69S
112 0 0 -32 6 9.2 16 37 3 28 87 1.90 201.3 183.60 6.75S
112 30 0 -32 19 20.6 16 37 47 28 87 1.86 201.3 183.66 6.80S
113 0 0 -32 32 39.4 16 38 32 29 86 1.81 201.4 183.72 6.86S
113 30 0 -32 46 5.3 16 39 18 29 86 1.77 201.4 183.77 6.92S
114 0 0 -32 59 38.4 16 40 4 30 85 1.73 201.5 183.83 6.97S
114 30 0 -33 13 18.3 16 40 52 31 84 1.69 201.5 183.88 7.02S
115 0 0 -33 27 5.1 16 41 40 31 84 1.66 201.6 183.93 7.07S
115 30 0 -33 40 58.4 16 42 29 32 83 1.62 201.6 183.98 7.12S
116 0 0 -33 54 58.2 16 43 20 32 83 1.59 201.7 184.03 7.17S
116 30 0 -34 9 4.2 16 44 11 33 82 1.55 201.7 184.08 7.22S
117 0 0 -34 23 16.3 16 45 2 33 82 1.52 201.8 184.12 7.27S
117 30 0 -34 37 34.2 16 45 55 34 81 1.49 201.8 184.17 7.31S
118 0 0 -34 51 57.6 16 46 49 34 80 1.46 201.9 184.21 7.35S
118 30 0 -35 6 26.5 16 47 43 35 80 1.43 201.9 184.25 7.39S
119 0 0 -35 21 0.3 16 48 38 36 79 1.40 202.0 184.29 7.43S
119 30 0 -35 35 39.0 16 49 34 36 78 1.37 202.0 184.33 7.47S
120 0 0 -35 50 22.3 16 50 31 37 78 1.35 202.0 184.36 7.51S
120 30 0 -36 5 9.7 16 51 28 37 77 1.32 202.1 184.39 7.54S
121 0 0 -36 20 1.0 16 52 26 38 76 1.30 202.1 184.43 7.57S
121 30 0 -36 34 56.0 16 53 25 38 75 1.27 202.1 184.46 7.60S
122 0 0 -36 49 54.4 16 54 24 39 75 1.25 202.1 184.48 7.63S
122 30 0 -37 4 55.7 16 55 24 39 74 1.23 202.2 184.51 7.65S
123 0 0 -37 19 59.7 16 56 25 40 73 1.20 202.2 184.53 7.67S
123 30 0 -37 35 6.1 16 57 26 40 72 1.18 202.2 184.55 7.69S
124 0 0 -37 50 14.5 16 58 28 41 71 1.16 202.2 184.57 7.71S
124 30 0 -38 5 24.5 16 59 31 41 71 1.14 202.2 184.58 7.73S
125 0 0 -38 20 35.8 17 0 33 42 70 1.12 202.3 184.60 7.74S
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]
C A S S I N I R E G I O N G R A Z E
Librations Long -3.17 Lat -6.01
P +184.50 D -5.50
Illumination of moon 71%-
Elongation of Moon 114
Vertical Profile Scale approx. 2.36 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.56 deg/min
At longitude 117.50:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
3.3 4.6 6.1 6.8 7.3 7.6 7.8 8.0
5.3 4.7 6.1 6.9 7.3 7.7 7.9 8.0
7.3 5.5 6.9 7.7 8.2 8.5 8.7 8.9
9.3 5.5 6.9 7.7 8.2 8.5 8.7 8.9
11.3 5.5 6.9 7.7 8.2 8.5 8.8 8.9
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Albany 117.8 -35.0 20km 16 46 30.9
Perth 115.9 -32.0 184km 16 43 4.6
Lunar Limb Profile
