Predictions for Grazing Occultation of ZC2646, 2015 Nov 15
Graze profile
Grazing Occultation of 2646 K2 Magnitude 5.8 [Red = 5.0]
Date: 2015 Nov 15 9h 40m, to 2015 Nov 15 9h 43m
Nominal site altitude 50m
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 -45 53 53 9 40 12 11 257 5.07 353.2 355.17 1.42N
167 30 0 -45 43 6 9 40 25 11 256 5.27 353.2 355.19 1.44N
168 0 0 -45 32 20 9 40 37 10 256 5.48 353.2 355.19 1.45N
168 30 0 -45 21 35 9 40 48 10 255 5.72 353.2 355.20 1.45N
169 0 0 -45 10 52 9 40 59 9 255 5.98 353.2 355.21 1.46N
169 30 0 -45 0 10 9 41 10 9 255 6.26 353.2 355.21 1.47N
170 0 0 -44 49 30 9 41 20 9 254 6.56 353.2 355.22 1.48N
170 30 0 -44 38 51 9 41 30 8 254 6.90 353.2 355.23 1.49N
171 0 0 -44 28 14 9 41 39 8 253 7.28 353.3 355.24 1.50N
171 30 0 -44 17 39 9 41 47 7 253 7.69 353.3 355.25 1.51N
172 0 0 -44 7 6 9 41 55 7 253 8.16 353.3 355.26 1.52N
172 30 0 -43 56 35 9 42 3 7 252 8.68 353.3 355.27 1.53N
173 0 0 -43 46 6 9 42 10 6 252 9.27 353.3 355.29 1.54N
173 30 0 -43 35 39 9 42 16 6 252 9.95 353.3 355.30 1.55N
174 0 0 -43 25 14 9 42 22 5 251 10.74 353.3 355.31 1.57N
174 30 0 -43 14 51 9 42 28 5 251 11.66 353.3 355.33 1.58N
175 0 0 -43 4 30 9 42 33 4 250 12.74 353.4 355.34 1.59N
175 30 0 -42 54 12 9 42 38 4 250 14.05 353.4 355.35 1.61N
176 0 0 -42 43 56 9 42 42 4 250 15.66 353.4 355.36 1.61N
176 30 0 -42 33 42 9 42 45 3 249 17.67 353.4 355.37 1.62N
177 0 0 -42 23 31 9 42 49 3 249 20.27 353.4 355.38 1.64N
177 30 0 -42 13 21 9 42 51 2 249 23.76 353.4 355.40 1.65N
178 0 0 -42 3 13 9 42 54 2 248 28.69 353.4 355.41 1.67N
178 30 0 -41 53 8 9 42 55 2 248 36.19 353.4 355.43 1.68N
179 0 0 -41 43 3 9 42 57 1 248 48.98 353.5 355.45 1.70N
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level. The path
is adjusted for the effects of refraction at low moon altitudes.
Projected diameter of star 8 meters [Estimated]
Librations Long -6.24 Lat -7.27
P +356.09 D +8.02
Illumination of moon 13%+
Elongation of Moon 42
Vertical Profile Scale 2.62 km/arcsec at mean distance of moon
Horizontal Scale Factor 2.11 deg/min
At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
-2.5 2.0 3.2 3.6 3.9 4.0 4.1 4.1
-0.5 2.0 3.2 3.6 3.9 4.0 4.1 4.1
1.5 4.4 5.8 6.5 6.9 7.2 7.4 7.6
3.5 4.5 5.9 6.6 7.0 7.3 7.5 7.7
5.5 4.5 5.9 6.6 7.0 7.3 7.6 7.7
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Chch graze 172.6 -43.5 36km 9 42 5
Dunedin 170.5 -45.9 121km 9 41 29
Lunar Limb Profile
