Predictions for Grazing Occultation of SAO 145938, 2009 May 17
Grazing Occultation of 145938dF2 Magnitude 7.2 [Red = 0.0]
Date: 2009 May 17 17h 21m, to 2009 May 17 17h 55m
Nominal site altitude 5m
E. Longit. Latitude U.T. Sun Moon TanZ PA AA CA
o ' " o ' " h m s Alt Alt Az o o o
148 0 0 -28 50 42 17 40 43 43 73 1.06 327.6 347.09 11.80N
148 30 0 -28 42 16 17 41 41 44 72 1.04 327.4 346.88 12.01N
149 0 0 -28 33 34 17 42 42 45 72 1.01 327.2 346.67 12.22N
149 30 0 -28 24 35 17 43 43 45 71 0.99 327.0 346.45 12.44N
150 0 0 -28 15 19 17 44 45 46 71 0.97 326.7 346.24 12.65N
150 30 0 -28 5 46 17 45 49 47 71 0.94 326.5 346.02 12.87N
151 0 0 -27 55 55 17 46 54 47 70 0.92 326.3 345.79 13.10N
151 30 0 -27 45 47 17 48 1 48 70 0.90 326.1 345.57 13.32N
152 0 0 -27 35 20 17 49 9 49 69 0.88 325.8 345.34 13.55N
152 30 0 -27 24 35 17 50 18 50 69 0.85 325.6 345.11 13.78N
153 0 0 -27 13 31 17 51 28 50 68 0.83 325.4 344.88 14.01N
153 30 0 -27 2 8 17 52 40 51 68 0.81 325.1 344.65 14.24N
154 0 0 -26 50 24 17 53 53 52 67 0.79 324.9 344.41 14.48N
154 30 0 -26 38 21 17 55 8 52 67 0.77 324.7 344.17 14.72N
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
145938 is double:
AB 7.3 10.3 1.0" 177.7 Graze path of B 1.58 km north, and 1.3 secs earlier compared to A
Librations Long -5.05 Lat -3.35
P +348.83 D +4.55
Illumination of moon 45%-
Elongation of Moon 85
Vertical Profile Scale 1.87 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.45 deg/min
At longitude 144.50:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
6.4 5.8 7.2 8.0 8.5 8.9 9.2 9.4
8.4 5.8 7.2 8.0 8.6 8.9 9.2 9.4
10.4 5.8 7.3 8.1 8.6 8.9 9.2 9.4
12.4 5.8 7.3 8.1 8.6 9.0 9.2 9.4
14.4 5.8 7.3 8.1 8.6 9.0 9.2 9.4
Lunar Limb Profile - Brisbane
