Predictions for Grazing Occultation of SAO139000, 2015 Apr 4
Graze profile
Grazing Occultation of 139000 K0 Magnitude 9.4 [Red = 8.7]
Date: 2015 Apr 04 10h 44m, to 2015 Apr 04 11h 12m
NB during lunar eclispse
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 -41 57 3 10 44 15 43 47 1.07 205.8 181.44 99.73U
167 30 0 -42 13 31 10 45 27 43 46 1.06 205.8 181.46 98.37U
168 0 0 -42 30 2 10 46 39 43 45 1.06 205.8 181.47 97.01U
168 30 0 -42 46 33 10 47 51 44 44 1.05 205.8 181.48 95.65U
169 0 0 -43 3 5 10 49 3 44 43 1.04 205.8 181.49 94.29U
169 30 0 -43 19 36 10 50 15 44 42 1.03 205.8 181.49 92.93U
170 0 0 -43 36 6 10 51 27 44 40 1.03 205.8 181.49 91.58U
170 30 0 -43 52 36 10 52 38 44 39 1.02 205.8 181.49 90.23U
171 0 0 -44 9 4 10 53 49 45 38 1.02 205.8 181.49 88.88U
171 30 0 -44 25 29 10 55 0 45 37 1.01 205.8 181.48 87.54U
172 0 0 -44 41 53 10 56 11 45 36 1.01 205.8 181.47 86.21U
172 30 0 -44 58 13 10 57 21 45 35 1.00 205.8 181.45 84.88U
173 0 0 -45 14 29 10 58 31 45 33 1.00 205.8 181.44 83.56U
173 30 0 -45 30 42 10 59 40 45 32 1.00 205.7 181.42 82.22U
174 0 0 -45 46 51 11 0 49 45 31 1.00 205.7 181.40 80.91U
174 30 0 -46 2 54 11 1 57 45 30 0.99 205.7 181.37 79.62U
175 0 0 -46 18 53 11 3 5 45 29 0.99 205.7 181.35 78.34U
175 30 0 -46 34 46 11 4 12 45 28 0.99 205.6 181.32 77.07U
176 0 0 -46 50 34 11 5 19 45 26 0.99 205.6 181.29 75.80U
176 30 0 -47 6 15 11 6 25 45 25 0.99 205.6 181.25 74.56U
177 0 0 -47 21 50 11 7 31 45 24 0.99 205.5 181.22 73.32U
177 30 0 -47 37 18 11 8 36 45 23 0.99 205.5 181.18 72.09U
178 0 0 -47 52 39 11 9 40 45 22 0.99 205.5 181.14 70.88U
178 30 0 -48 7 53 11 10 43 45 21 1.00 205.4 181.10 69.69U
179 0 0 -48 23 0 11 11 46 45 19 1.00 205.4 181.06 68.50U
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.
Librations Long -2.82 Lat -1.10
P +181.48 D -0.77
Illumination of moon 46%E
Elongation of Moon 179
Vertical Profile Scale 2.63 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.39 deg/min
At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
79.6 10.6 11.3 11.9 12.5 13.1 13.8 14.4
81.6 10.6 11.3 11.9 12.5 13.1 13.8 14.4
83.6 10.6 11.3 11.9 12.5 13.1 13.8 14.4
85.6 10.6 11.3 11.9 12.5 13.1 13.8 14.4
87.6 10.6 11.3 11.9 12.5 13.1 13.8 14.4
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Chch graze 172.6 -43.5 135km 10 57 40
Dunedin 170.5 -45.9 174km 10 52 38
MidNZ 173.0 -41.0 383km 10 58 31
Lunar Limb Profile
