Predictions for Grazing Occultation of ZC 311, 2007 Jun 11
Grazing Occultation of 311 cA3 Magnitude 6.6
Date 2007 June 11 (Monday) Nominal site altitude 0m
E. Longit. Latitude U.T. Sun Moon TanZ PA WA CA
o ' " o ' " h m s Alt Alt Az o o o
137 0 0 -36 55 6 20 3 34 15 53 3.74 326.8 345.91 18.07N
137 10 0 -36 49 52 20 3 40 15 53 3.70 326.8 345.86 18.11N
137 20 0 -36 44 35 20 3 47 15 53 3.65 326.7 345.83 18.14N
137 30 0 -36 39 18 20 3 53 15 53 3.61 326.7 345.80 18.18N
137 40 0 -36 33 59 20 3 59 16 53 3.57 326.7 345.76 18.21N
137 50 0 -36 28 39 20 4 6 16 53 3.52 326.6 345.72 18.25N
138 0 0 -36 23 17 20 4 13 16 52 3.48 326.6 345.69 18.29N
138 10 0 -36 17 54 20 4 20 16 52 3.44 326.6 345.65 18.32N
138 20 0 -36 12 30 20 4 26 16 52 3.40 326.5 345.61 18.36N
138 30 0 -36 7 5 20 4 33 17 52 3.36 326.5 345.57 18.40N
138 40 0 -36 1 37 20 4 40 17 52 3.32 326.5 345.54 18.44N
138 50 0 -35 56 9 20 4 47 17 52 3.29 326.4 345.50 18.47N
139 0 0 -35 50 39 20 4 55 17 52 3.25 326.4 345.46 18.51N
139 10 0 -35 45 8 20 5 2 17 52 3.21 326.3 345.42 18.55N
139 20 0 -35 39 35 20 5 9 17 51 3.18 326.3 345.39 18.59N
139 30 0 -35 34 1 20 5 17 18 51 3.14 326.3 345.35 18.62N
139 40 0 -35 28 26 20 5 24 18 51 3.11 326.2 345.31 18.66N
139 50 0 -35 22 49 20 5 32 18 51 3.07 326.2 345.27 18.70N
140 0 0 -35 17 10 20 5 39 18 51 3.04 326.2 345.24 18.74N
140 10 0 -35 11 31 20 5 47 18 51 3.01 326.1 345.20 18.78N
140 20 0 -35 5 49 20 5 55 19 51 2.98 326.1 345.16 18.81N
140 30 0 -35 0 7 20 6 3 19 51 2.94 326.0 345.12 18.85N
140 40 0 -34 54 23 20 6 11 19 50 2.91 326.0 345.08 18.89N
140 50 0 -34 48 37 20 6 19 19 50 2.88 326.0 345.05 18.93N
141 0 0 -34 42 50 20 6 27 19 50 2.85 325.9 345.01 18.97N
141 10 0 -34 37 2 20 6 36 20 50 2.82 325.9 344.97 19.00N
141 20 0 -34 31 12 20 6 44 20 50 2.79 325.8 344.93 19.04N
141 30 0 -34 25 20 20 6 53 20 50 2.76 325.8 344.89 19.08N
141 40 1 -34 19 27 20 7 1 20 50 2.73 325.8 344.85 19.12N
141 50 1 -34 13 33 20 7 10 20 50 2.71 325.7 344.82 19.16N
142 0 1 -34 7 37 20 7 19 20 49 2.68 325.7 344.78 19.20N
142 10 1 -34 1 39 20 7 28 21 49 2.65 325.7 344.74 19.24N
142 20 1 -33 55 41 20 7 37 21 49 2.62 325.6 344.70 19.27N
142 30 1 -33 49 40 20 7 46 21 49 2.60 325.6 344.66 19.31N
142 40 1 -33 43 38 20 7 55 21 49 2.57 325.5 344.62 19.35N
142 50 1 -33 37 35 20 8 4 21 49 2.55 325.5 344.58 19.39N
143 0 1 -33 31 30 20 8 14 22 49 2.52 325.5 344.54 19.43N
143 10 1 -33 25 23 20 8 23 22 49 2.50 325.4 344.51 19.47N
143 20 1 -33 19 15 20 8 33 22 48 2.47 325.4 344.47 19.51N
143 30 1 -33 13 6 20 8 43 22 48 2.45 325.3 344.43 19.55N
143 40 1 -33 6 54 20 8 52 22 48 2.42 325.3 344.39 19.58N
143 50 1 -33 0 42 20 9 2 23 48 2.40 325.3 344.35 19.62N
144 0 1 -32 54 28 20 9 12 23 48 2.38 325.2 344.31 19.66N
Path coordinates are referred to WGS84 (as used by GPS).
311 is double : 6.6 9.0 0.030" 287.0
Graze Path of component #2 0.05km South, and 0.0 secs. earlier cf. primary.
Librations Long -0.23 Lat -5.80
P +344.3 D +5.9
Illumination of moon 14%-
Elongation of Moon 45
Vertical Profile Scale 2.04 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.74 deg/min
Limiting Magnitudes for various telescope apertures (in mm)
CA\Tdia 50 100 150 200 250 300 350
15.7 6.4 7.9 8.7 9.3 9.7 10.0 10.2
17.7 6.5 7.9 8.8 9.3 9.7 10.0 10.2
19.7 6.5 8.0 8.8 9.3 9.7 10.0 10.3
21.7 6.5 8.0 8.8 9.4 9.8 10.1 10.3
23.7 6.5 8.0 8.8 9.4 9.8 10.1 10.3
Lunar Limb Profile for graze
