Predictions for Grazing Occultation of ZC 2361, 2014 Jan 26
Graze profile
Grazing Occultation of 2361 B2 Magnitude 4.2 [Red = 4.1] V
R2361 = chi Ophiuchi
Date: 2014 Jan 26 16h 3m, to 2014 Jan 26 16h 16m
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 -38 26 9 16 2 35 24 95 2.24 191.9 181.66 0.79S
167 30 0 -38 38 54 16 3 3 25 95 2.19 191.9 181.66 0.79S
168 0 0 -38 51 39 16 3 32 25 94 2.14 191.9 181.66 0.79S
168 30 0 -39 4 25 16 4 1 26 94 2.09 191.9 181.66 0.79S
169 0 0 -39 17 10 16 4 31 26 93 2.04 191.9 181.66 0.79S
169 30 0 -39 29 55 16 5 1 27 93 2.00 191.9 181.66 0.79S
170 0 0 -39 42 39 16 5 32 27 92 1.96 191.9 181.66 0.78S
170 30 0 -39 55 23 16 6 3 28 92 1.92 191.9 181.65 0.78S
171 0 0 -40 8 6 16 6 34 28 91 1.88 191.9 181.65 0.78S
171 30 0 -40 20 48 16 7 7 29 91 1.84 191.9 181.64 0.77S
172 0 0 -40 33 29 16 7 39 29 90 1.80 191.9 181.63 0.76S
172 30 0 -40 46 9 16 8 12 30 90 1.77 191.8 181.62 0.75S
173 0 0 -40 58 47 16 8 46 30 89 1.73 191.8 181.61 0.74S
173 30 0 -41 11 24 16 9 20 30 89 1.70 191.8 181.60 0.73S
174 0 0 -41 23 59 16 9 54 31 88 1.67 191.8 181.59 0.72S
174 30 0 -41 36 32 16 10 29 -12 31 87 1.64 191.8 181.58 0.71S
175 0 0 -41 49 2 16 11 4 -11 32 87 1.61 191.8 181.56 0.69S
175 30 0 -42 1 30 16 11 40 -11 32 86 1.58 191.8 181.55 0.68S
176 0 0 -42 13 56 16 12 16 -10 33 86 1.55 191.8 181.53 0.66S
176 30 0 -42 26 19 16 12 52 -10 33 85 1.52 191.7 181.51 0.64S
177 0 0 -42 38 39 16 13 29 -9 34 85 1.50 191.7 181.49 0.62S
177 30 0 -42 50 56 16 14 6 -9 34 84 1.47 191.7 181.47 0.60S
178 0 0 -43 3 9 16 14 44 -8 35 83 1.45 191.7 181.45 0.58S
178 30 0 -43 15 20 16 15 22 -8 35 83 1.42 191.6 181.43 0.56S
179 0 0 -43 27 26 16 16 0 -7 36 82 1.40 191.6 181.40 0.53S
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
2361 is variable:
2361 = khi Oph, 4.14 to 4.77, V, Type GCAS+LERI, Period 0.649 days
C A S S I N I R E G I O N G R A Z E
Librations Long -5.99 Lat -4.38
P +182.04 D -3.95
Illumination of moon 24%-
Elongation of Moon 59
Vertical Profile Scale 2.29 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.85 deg/min
At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
-3.3 3.3 4.7 5.4 5.8 6.1 6.3 6.4
-1.3 3.3 4.7 5.4 5.8 6.1 6.3 6.4
0.7 5.1 6.5 7.3 7.8 8.1 8.4 8.5
2.7 5.1 6.5 7.3 7.8 8.1 8.4 8.6
4.7 5.1 6.5 7.3 7.8 8.2 8.4 8.6
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Chch graze 172.6 -43.5 260km 16 8 22
MidNZ 173.0 -41.0 2km 16 8 46
Wellington 174.8 -41.3 42km 16 10 50
Lunar Limb Profile
