Predictions for Grazing Occultation of S 118536, 2013 Aug 9
Graze profile
Grazing Occultation of 118536 K2 Magnitude 7.7 [Red = 7.1]
Date: 2013 Aug 09 7h 13m, to 2013 Aug 09 7h 13m
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 0 0 -35 28 3 7 13 7 10 280 5.90 202.7 179.45 7.74S
173 10 0 -35 29 11 7 13 9 9 280 5.99 202.6 179.42 7.77S
173 20 0 -35 30 18 7 13 11 9 280 6.09 202.6 179.40 7.80S
173 30 0 -35 31 24 7 13 13 9 280 6.18 202.6 179.37 7.82S
173 40 0 -35 32 29 7 13 14 9 280 6.28 202.6 179.34 7.85S
173 50 1 -35 33 34 7 13 16 9 280 6.39 202.5 179.32 7.88S
174 0 1 -35 34 39 7 13 18 9 280 6.49 202.5 179.29 7.90S
174 10 1 -35 35 42 7 13 20 9 279 6.60 202.5 179.26 7.93S
174 20 1 -35 36 45 7 13 21 8 279 6.71 202.5 179.24 7.96S
174 30 1 -35 37 48 7 13 23 8 279 6.83 202.4 179.21 7.98S
174 40 1 -35 38 49 7 13 24 8 279 6.95 202.4 179.18 8.01S
174 50 1 -35 39 51 7 13 26 8 279 7.07 202.4 179.16 8.03S
175 0 1 -35 40 51 7 13 27 8 279 7.20 202.4 179.13 8.06S
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
Projected diameter of star 1 meters [Estimated]
Librations Long -5.85 Lat +5.31
P +178.72 D +5.50
Illumination of moon 5%+
Elongation of Moon 27
Vertical Profile Scale 1.94 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.83 deg/min
At longitude 174.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
3.9 7.2 8.7 9.5 10.0 10.4 10.7 10.9
5.9 7.2 8.7 9.5 10.1 10.5 10.8 11.0
7.9 7.3 8.7 9.5 10.1 10.5 10.8 11.0
9.9 7.3 8.7 9.6 10.1 10.5 10.8 11.0
11.9 7.3 8.8 9.6 10.1 10.5 10.8 11.1
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Auckland 174.8 -36.9 137km 7 13 25
Lunar Limb Profile
