Predictions for Grazing Occultation of R3384, 2013 Apr 7
Graze profile
Grazing Occultation of 3384 F9 Magnitude 7.8 [Red = 7.5]
Date: 2013 Apr 07 17h 41m, to 2013 Apr 07 17h 42m
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
167 0 0 -46 26 38 17 41 2 9 81 6.44 338.5 2.05 6.81N
167 10 0 -46 26 3 17 41 5 9 81 6.35 338.5 2.03 6.84N
167 20 0 -46 25 29 17 41 8 9 81 6.26 338.5 2.00 6.86N
167 30 0 -46 24 54 17 41 11 9 81 6.17 338.5 1.98 6.88N
167 40 0 -46 24 18 17 41 14 9 81 6.09 338.4 1.96 6.90N
167 50 1 -46 23 42 17 41 17 9 81 6.01 338.4 1.94 6.92N
168 0 1 -46 23 5 17 41 20 10 80 5.93 338.4 1.92 6.95N
168 10 1 -46 22 27 17 41 24 10 80 5.85 338.4 1.89 6.97N
168 20 1 -46 21 49 17 41 27 10 80 5.78 338.3 1.87 6.99N
168 30 1 -46 21 11 17 41 30 10 80 5.70 338.3 1.85 7.01N
168 40 1 -46 20 32 17 41 33 10 80 5.63 338.3 1.83 7.04N
168 50 1 -46 19 52 17 41 37 10 80 5.56 338.3 1.80 7.06N
169 0 1 -46 19 12 17 41 40 10 80 5.49 338.3 1.78 7.08N
169 10 2 -46 18 31 17 41 44 10 79 5.42 338.2 1.76 7.10N
169 20 2 -46 17 50 17 41 47 11 79 5.36 338.2 1.74 7.12N
169 30 2 -46 17 8 17 41 51 11 79 5.29 338.2 1.72 7.15N
169 40 2 -46 16 25 17 41 54 11 79 5.23 338.2 1.69 7.17N
169 50 2 -46 15 42 17 41 58 11 79 5.17 338.1 1.67 7.19N
170 0 2 -46 14 58 17 42 1 11 79 5.11 338.1 1.65 7.22N
170 10 2 -46 14 14 17 42 5 11 79 5.05 338.1 1.62 7.24N
170 20 2 -46 13 29 17 42 9 11 79 4.99 338.1 1.60 7.26N
170 30 3 -46 12 44 17 42 12 11 78 4.93 338.0 1.58 7.28N
170 40 3 -46 11 58 17 42 16 12 78 4.88 338.0 1.56 7.31N
170 50 3 -46 11 11 17 42 20 12 78 4.83 338.0 1.53 7.33N
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
Librations Long +5.92 Lat -6.30
P +1.11 D +6.74
Illumination of moon 7%-
Elongation of Moon 31
Vertical Profile Scale 2.08 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.88 deg/min
At longitude 169.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
3.1 6.7 8.2 9.0 9.5 9.9 10.2 10.4
5.1 6.7 8.2 9.0 9.5 9.9 10.2 10.4
7.1 6.8 8.2 9.0 9.6 10.0 10.3 10.5
9.1 6.8 8.3 9.1 9.6 10.0 10.3 10.5
11.1 6.8 8.3 9.1 9.7 10.0 10.3 10.5
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Chch graze 172.6 -43.5 276km 17 43 4
Dunedin 170.5 -45.9 37km 17 42 12
MidNZ 173.0 -41.0 551km 17 43 13
Lunar Limb Profile
