Predictions for Grazing Occultation of ZC 600, 2015 Feb 25
Graze profile
Grazing Occultation of 600cK2 Magnitude 6.6 [Red = 6.1]
Date: 2015 Feb 25 10h 20m, to 2015 Feb 25 10h 53m
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
135 0 0 -23 52 10 10 19 48 -11 43 329 1.08 352.1 4.05 2.83N
135 30 0 -23 52 2 10 20 54 -12 42 328 1.10 352.2 4.23 3.01N
136 0 0 -23 52 10 10 22 0 42 327 1.11 352.4 4.40 3.18N
136 30 0 -23 52 35 10 23 5 42 326 1.13 352.6 4.57 3.35N
137 0 0 -23 53 15 10 24 9 41 325 1.14 352.8 4.74 3.52N
137 30 0 -23 54 11 10 25 13 41 325 1.16 352.9 4.90 3.68N
138 0 0 -23 55 22 10 26 15 40 324 1.18 353.1 5.06 3.85N
138 30 0 -23 56 49 10 27 17 40 323 1.19 353.2 5.23 4.01N
139 0 0 -23 58 30 10 28 18 39 322 1.21 353.4 5.38 4.17N
139 30 0 -24 0 26 10 29 18 39 322 1.23 353.6 5.54 4.32N
140 0 0 -24 2 37 10 30 17 39 321 1.25 353.7 5.69 4.48N
140 30 0 -24 5 2 10 31 16 38 320 1.27 353.9 5.84 4.63N
141 0 0 -24 7 40 10 32 13 38 319 1.30 354.0 5.99 4.77N
141 30 0 -24 10 32 10 33 10 37 319 1.32 354.2 6.14 4.92N
142 0 0 -24 13 37 10 34 6 37 318 1.34 354.3 6.28 5.06N
142 30 0 -24 16 56 10 35 0 36 318 1.37 354.4 6.42 5.20N
143 0 0 -24 20 27 10 35 54 36 317 1.39 354.6 6.56 5.34N
143 30 0 -24 24 10 10 36 47 35 316 1.42 354.7 6.69 5.47N
144 0 0 -24 28 6 10 37 39 35 316 1.44 354.8 6.82 5.60N
144 30 0 -24 32 14 10 38 31 34 315 1.47 355.0 6.95 5.73N
145 0 0 -24 36 33 10 39 21 34 315 1.50 355.1 7.08 5.86N
145 30 0 -24 41 4 10 40 10 33 314 1.53 355.2 7.20 5.98N
146 0 0 -24 45 46 10 40 58 33 313 1.56 355.3 7.32 6.10N
146 30 0 -24 50 39 10 41 46 32 313 1.59 355.5 7.44 6.22N
147 0 0 -24 55 42 10 42 32 32 312 1.62 355.6 7.55 6.33N
147 30 0 -25 0 56 10 43 18 31 312 1.66 355.7 7.66 6.44N
148 0 0 -25 6 19 10 44 3 31 311 1.69 355.8 7.77 6.55N
148 30 0 -25 11 53 10 44 46 30 311 1.73 355.9 7.88 6.66N
149 0 0 -25 17 36 10 45 29 30 310 1.77 356.0 7.98 6.76N
149 30 0 -25 23 28 10 46 11 29 310 1.80 356.1 8.08 6.86N
150 0 0 -25 29 29 10 46 52 28 310 1.84 356.2 8.18 6.96N
150 30 0 -25 35 39 10 47 32 28 309 1.89 356.3 8.28 7.06N
151 0 0 -25 41 58 10 48 11 27 309 1.93 356.4 8.37 7.15N
151 30 0 -25 48 25 10 48 50 27 308 1.97 356.5 8.46 7.24N
152 0 0 -25 55 0 10 49 27 26 308 2.02 356.6 8.55 7.33N
152 30 0 -26 1 43 10 50 3 26 307 2.07 356.6 8.63 7.41N
153 0 0 -26 8 34 10 50 39 25 307 2.12 356.7 8.71 7.50N
153 30 0 -26 15 32 10 51 13 25 307 2.17 356.8 8.80 7.58N
154 0 0 -26 22 37 10 51 47 24 306 2.22 356.9 8.87 7.65N
154 30 0 -26 29 49 10 52 20 24 306 2.28 357.0 8.95 7.73N
155 0 0 -26 37 8 10 52 52 23 305 2.34 357.0 9.02 7.80N
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 2 meters [Estimated]
600 is double:
AB 6.7 9.6 0.30" 91.0 (YSC 22) Graze path of B 0.08 km north, and 0.8 secs later compared to A
Librations Long +6.93 Lat +4.66
P +7.57 D -3.52
Illumination of moon 47%+
Elongation of Moon 86
Vertical Profile Scale 2.54 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.35 deg/min
At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
1.9 4.9 6.3 7.1 7.6 7.9 8.1 8.3
3.9 5.7 7.1 7.9 8.4 8.8 9.0 9.2
5.9 5.7 7.1 7.9 8.4 8.8 9.0 9.2
7.9 5.7 7.2 7.9 8.5 8.8 9.1 9.2
9.9 5.7 7.2 8.0 8.5 8.8 9.1 9.3
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Brisbane 153.1 -27.5 141km 10 50 42
Bundaberg 152.3 -24.8 128km 10 49 51
Rockhampton 150.5 -23.4 241km 10 47 32
Lunar Limb Profile
