Predictions for Grazing Occultation of ZC 2108, 2007 Sep 16
Grazing Occultation of 2108 cG2 Magnitude 6.6
Date 2007 September 16 (Sunday) 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
174 0 0 -39 38 31 8 53 37 20 259 2.71 192.6 175.98 8.30S
174 10 0 -39 35 45 8 53 43 20 259 2.73 192.6 175.96 8.33S
174 20 0 -39 32 58 8 53 48 20 258 2.76 192.5 175.93 8.35S
174 30 0 -39 30 10 8 53 54 20 258 2.78 192.5 175.90 8.38S
174 40 0 -39 27 21 8 53 59 20 258 2.80 192.5 175.88 8.41S
174 50 0 -39 24 31 8 54 5 19 258 2.83 192.5 175.85 8.43S
175 0 0 -39 21 41 8 54 10 19 258 2.85 192.4 175.83 8.46S
175 10 0 -39 18 50 8 54 15 19 258 2.88 192.4 175.80 8.48S
175 20 0 -39 15 58 8 54 21 19 258 2.90 192.4 175.78 8.51S
175 30 0 -39 13 6 8 54 26 19 258 2.93 192.4 175.75 8.53S
175 40 0 -39 10 13 8 54 31 19 257 2.95 192.3 175.73 8.56S
175 50 0 -39 7 19 8 54 36 19 257 2.98 192.3 175.70 8.58S
176 0 0 -39 4 24 8 54 41 18 257 3.00 192.3 175.68 8.61S
176 10 0 -39 1 29 8 54 46 18 257 3.03 192.3 175.65 8.63S
176 20 0 -38 58 33 8 54 51 18 257 3.06 192.2 175.63 8.66S
176 30 0 -38 55 36 8 54 56 18 257 3.09 192.2 175.60 8.68S
176 40 0 -38 52 38 8 55 1 18 257 3.12 192.2 175.58 8.71S
176 50 0 -38 49 40 8 55 6 18 257 3.14 192.2 175.55 8.73S
177 0 0 -38 46 41 8 55 11 17 257 3.17 192.1 175.53 8.75S
177 10 0 -38 43 41 8 55 16 17 256 3.20 192.1 175.51 8.78S
177 20 0 -38 40 41 8 55 21 17 256 3.23 192.1 175.48 8.80S
177 30 0 -38 37 40 8 55 25 17 256 3.27 192.1 175.46 8.83S
177 40 0 -38 34 38 8 55 30 17 256 3.30 192.1 175.44 8.85S
177 50 0 -38 31 35 8 55 35 17 256 3.33 192.0 175.41 8.87S
178 0 0 -38 28 32 8 55 39 17 256 3.36 192.0 175.39 8.90S
178 10 0 -38 25 28 8 55 44 16 256 3.39 192.0 175.37 8.92S
178 20 0 -38 22 24 8 55 48 16 256 3.43 192.0 175.34 8.94S
178 30 0 -38 19 18 8 55 53 16 255 3.46 191.9 175.32 8.97S
Path coordinates are referred to WGS84 (as used by GPS).
2108 is double : 7.1 7.2 0.159" 48.5
Graze Path of component #2 0.23km South, and 0.2 secs. later cf. primary.
Librations Long -2.63 Lat +6.09
P +175.0 D +6.1
Illumination of moon 20%+
Elongation of Moon 53
Vertical Profile Scale 1.93 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.79 deg/min
Limiting Magnitudes for various telescope apertures (in mm)
CA\Tdia 50 100 150 200 250 300 350
5.0 5.7 7.1 7.9 8.4 8.8 9.0 9.2
7.0 5.7 7.2 8.0 8.5 8.8 9.1 9.3
9.0 5.8 7.3 8.1 8.6 8.9 9.2 9.3
11.0 5.9 7.3 8.1 8.6 9.0 9.2 9.4
13.0 5.9 7.4 8.2 8.7 9.0 9.3 9.5
Lunar Limb Profile
