Predictions for Grazing Occultation of ZC 1493, 2007 Apr 26
Grazing Occultation of 1493 cF7 Magnitude 6.5
Date 2007 April 26 (Thursday) 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
149 0 0 -22 7 2 9 55 42 55 2 0.71 43.2 24.16 21.66N
149 10 0 -22 17 49 9 56 20 54 1 0.71 43.2 24.17 21.66N
149 20 0 -22 28 35 9 56 58 54 1 0.72 43.2 24.17 21.67N
149 30 0 -22 39 22 9 57 36 54 0 0.72 43.2 24.18 21.67N
149 40 0 -22 50 9 9 58 13 54 360 0.73 43.2 24.18 21.67N
149 50 0 -23 0 56 9 58 51 54 359 0.73 43.2 24.18 21.67N
150 0 0 -23 11 43 9 59 28 54 359 0.74 43.2 24.18 21.67N
150 10 0 -23 22 29 10 0 5 53 358 0.74 43.2 24.17 21.67N
150 20 0 -23 33 15 10 0 42 53 358 0.75 43.2 24.17 21.67N
150 30 0 -23 44 0 10 1 19 53 357 0.75 43.2 24.17 21.66N
150 40 0 -23 54 45 10 1 56 53 357 0.76 43.2 24.16 21.66N
150 50 0 -24 5 30 10 2 33 53 356 0.76 43.2 24.15 21.65N
151 0 0 -24 16 13 10 3 9 52 356 0.77 43.2 24.15 21.64N
151 10 0 -24 26 56 10 3 45 52 355 0.78 43.2 24.14 21.63N
151 20 0 -24 37 39 10 4 21 52 355 0.78 43.2 24.13 21.62N
151 30 0 -24 48 20 10 4 57 52 354 0.79 43.2 24.12 21.61N
151 40 0 -24 59 0 10 5 33 52 354 0.79 43.2 24.10 21.60N
151 50 0 -25 9 40 10 6 9 51 353 0.80 43.1 24.09 21.58N
152 0 0 -25 20 18 10 6 44 51 353 0.80 43.1 24.07 21.57N
152 10 0 -25 30 55 10 7 19 51 352 0.81 43.1 24.06 21.55N
152 20 0 -25 41 31 10 7 54 51 352 0.82 43.1 24.04 21.54N
152 30 0 -25 52 6 10 8 29 51 351 0.82 43.1 24.02 21.52N
152 40 0 -26 2 40 10 9 4 50 351 0.83 43.1 24.00 21.50N
152 50 0 -26 13 12 10 9 38 50 350 0.84 43.0 23.98 21.48N
153 0 0 -26 23 43 10 10 12 50 350 0.84 43.0 23.96 21.46N
153 10 0 -26 34 12 10 10 46 50 350 0.85 43.0 23.94 21.44N
153 20 0 -26 44 40 10 11 20 49 349 0.86 43.0 23.92 21.41N
Path coordinates are referred to WGS84 (as used by GPS).
1493 is double : 6.4 7.3 0.032" 269.4
Graze Path of component #2 0.05km North, and 0.1 secs. earlier cf. primary.
Librations Long +5.49 Lat -2.17
P +23.7 D +4.5
Illumination of moon 71%+
Elongation of Moon 114
Vertical Profile Scale 2.17 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.27 deg/min
Limiting Magnitudes for various telescope apertures (in mm)
CA\Tdia 50 100 150 200 250 300 350
17.4 5.7 7.2 8.0 8.5 8.8 9.1 9.3
19.4 5.7 7.2 8.0 8.5 8.9 9.1 9.3
21.4 5.7 7.2 8.0 8.5 8.9 9.1 9.3
23.4 5.7 7.2 8.0 8.5 8.9 9.1 9.3
25.4 5.7 7.2 8.0 8.5 8.9 9.1 9.3
Lunar Limb Profile
