Predictions for Grazing Occultation of SAO 76303, 2009 Jun 20
This occultation occurs during morning twilight with a low moon.
Grazing Occultation of 76303 A2 Magnitude 7.8 [Red = 7.7]
Date: 2009 Jun 20 18h 43m, to 2009 Jun 20 18h 44m
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
173 30 0 -36 29 51 18 43 18 -11 9 48 6.25 340.0 352.83 17.53N
173 40 0 -36 23 48 18 43 23 -10 9 48 6.13 340.0 352.81 17.55N
173 50 0 -36 17 44 18 43 27 -10 9 48 6.01 340.0 352.79 17.57N
174 0 0 -36 11 39 18 43 32 -10 10 48 5.90 340.0 352.77 17.59N
174 10 0 -36 5 33 18 43 36 -10 10 48 5.79 340.0 352.75 17.61N
174 20 1 -35 59 27 18 43 41 -10 10 48 5.68 339.9 352.73 17.63N
174 30 1 -35 53 20 18 43 46 -10 10 48 5.58 339.9 352.71 17.65N
174 40 1 -35 47 13 18 43 50 -9 10 48 5.48 339.9 352.69 17.67N
174 50 1 -35 41 4 18 43 55 -9 11 48 5.38 339.9 352.67 17.69N
175 0 1 -35 34 55 18 44 0 -9 11 47 5.29 339.9 352.65 17.71N
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
Librations Long -4.05 Lat -6.40
P +353.16 D +7.12
Illumination of moon 6%-
Elongation of Moon 28
Vertical Profile Scale 2.35 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.78 deg/min
At longitude 174.33:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
13.6 6.4 7.8 8.6 9.1 9.4 9.6 9.8
15.6 6.4 7.8 8.6 9.1 9.4 9.6 9.8
17.6 6.4 7.9 8.6 9.1 9.4 9.6 9.8
19.6 6.4 7.9 8.6 9.1 9.4 9.6 9.8
21.6 6.4 7.9 8.6 9.1 9.4 9.6 9.8
Lunar Limb Profile
