Predictions for Grazing Occultation of ZC2674, 2015 Oct 19
Graze profile
Grazing Occultation of 2674 B8 Magnitude 6.2 [Red = 6.2] s
Date: 2015 Oct 19 8h 30m, to 2015 Oct 19 8h 47m
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 47 38 8 30 9 -12 44 292 1.05 171.9 174.95 3.31S
167 30 0 -45 38 42 8 30 53 43 291 1.06 171.8 174.90 3.36S
168 0 0 -45 29 40 8 31 37 43 290 1.08 171.8 174.85 3.41S
168 30 0 -45 20 32 8 32 21 42 289 1.09 171.7 174.80 3.46S
169 0 0 -45 11 18 8 33 4 42 289 1.11 171.7 174.75 3.51S
169 30 0 -45 1 58 8 33 47 42 288 1.12 171.6 174.70 3.56S
170 0 0 -44 52 33 8 34 30 41 287 1.14 171.6 174.66 3.60S
170 30 0 -44 43 2 8 35 13 41 286 1.16 171.5 174.61 3.65S
171 0 0 -44 33 26 8 35 55 40 286 1.18 171.5 174.57 3.69S
171 30 0 -44 23 45 8 36 37 40 285 1.19 171.5 174.52 3.74S
172 0 0 -44 13 59 8 37 19 40 284 1.21 171.4 174.48 3.78S
172 30 0 -44 4 7 8 38 1 39 284 1.23 171.4 174.44 3.82S
173 0 0 -43 54 11 8 38 42 39 283 1.25 171.3 174.40 3.86S
173 30 0 -43 44 9 8 39 24 38 282 1.27 171.3 174.36 3.90S
174 0 0 -43 34 3 8 40 4 38 282 1.29 171.3 174.33 3.93S
174 30 0 -43 23 53 8 40 45 37 281 1.31 171.2 174.29 3.97S
175 0 0 -43 13 38 8 41 25 37 280 1.33 171.2 174.25 4.00S
175 30 0 -43 3 18 8 42 5 36 280 1.35 171.2 174.22 4.04S
176 0 0 -42 52 55 8 42 44 36 279 1.38 171.1 174.19 4.07S
176 30 0 -42 42 27 8 43 23 36 278 1.40 171.1 174.16 4.10S
177 0 0 -42 31 55 8 44 2 35 278 1.42 171.1 174.13 4.13S
177 30 0 -42 21 20 8 44 40 35 277 1.45 171.0 174.10 4.16S
178 0 0 -42 10 41 8 45 18 34 277 1.47 171.0 174.07 4.19S
178 30 0 -41 59 58 8 45 56 34 276 1.50 171.0 174.04 4.21S
179 0 0 -41 49 12 8 46 33 33 275 1.53 171.0 174.02 4.24S
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.
2674 is variable:
2674 = NSV 10835, 6.17 to 6.20, V
C A S S I N I R E G I O N G R A Z E
Librations Long -7.39 Lat -7.25
P +175.30 D -7.68
Illumination of moon 34%+
Elongation of Moon 71
Vertical Profile Scale 2.23 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.61 deg/min
At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
-0.1 3.2 4.7 5.4 5.9 6.2 6.4 6.5
1.9 5.1 6.5 7.3 7.8 8.2 8.4 8.6
3.9 5.1 6.5 7.3 7.8 8.2 8.4 8.6
5.9 5.9 7.3 8.2 8.7 9.1 9.3 9.6
7.9 5.9 7.4 8.2 8.7 9.1 9.4 9.6
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Chch graze 172.6 -43.5 49km 8 38 12
Dunedin 170.5 -45.9 117km 8 35 12
MidNZ 173.0 -41.0 295km 8 38 42
Wellington 174.8 -41.3 201km 8 41 9
Lunar Limb Profile
