Predictions for Grazing Occultation of ZC2015, 2015 May 9
Graze profile
Grazing Occultation of 2880 F3 Magnitude 5.1 [Red = 4.9]
R2880 = 55 Sagittarii
Date: 2015 May 09 13h 10m, to 2015 May 09 13h 22m
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 15 53 13 9 58 30 86 1.75 175.5 186.00 7.91S
167 30 0 -41 21 36 13 10 25 30 85 1.72 175.5 185.94 7.85S
168 0 0 -41 27 14 13 10 51 31 85 1.69 175.4 185.89 7.80S
168 30 0 -41 32 47 13 11 18 31 84 1.66 175.3 185.83 7.74S
169 0 0 -41 38 14 13 11 46 31 84 1.63 175.3 185.78 7.69S
169 30 0 -41 43 37 13 12 13 32 83 1.60 175.2 185.72 7.63S
170 0 0 -41 48 55 13 12 42 32 83 1.58 175.2 185.66 7.57S
170 30 0 -41 54 7 13 13 10 33 82 1.55 175.1 185.60 7.51S
171 0 0 -41 59 14 13 13 39 33 82 1.52 175.1 185.54 7.45S
171 30 0 -42 4 16 13 14 8 34 81 1.50 175.0 185.48 7.39S
172 0 0 -42 9 12 13 14 37 34 81 1.47 174.9 185.42 7.33S
172 30 0 -42 14 3 13 15 7 35 80 1.45 174.9 185.36 7.27S
173 0 0 -42 18 48 13 15 37 35 80 1.43 174.8 185.30 7.21S
173 30 0 -42 23 27 13 16 8 35 79 1.40 174.8 185.23 7.14S
174 0 0 -42 28 1 13 16 39 36 79 1.38 174.7 185.17 7.08S
174 30 0 -42 32 30 13 17 10 36 78 1.36 174.6 185.10 7.01S
175 0 0 -42 36 52 13 17 42 37 78 1.34 174.6 185.04 6.95S
175 30 0 -42 41 9 13 18 14 37 77 1.31 174.5 184.97 6.88S
176 0 0 -42 45 20 13 18 46 38 76 1.29 174.4 184.90 6.81S
176 30 0 -42 49 25 13 19 18 38 76 1.27 174.4 184.83 6.74S
177 0 0 -42 53 25 13 19 51 39 75 1.25 174.3 184.76 6.67S
177 30 0 -42 57 18 13 20 24 39 75 1.23 174.2 184.69 6.60S
178 0 0 -43 1 5 13 20 58 39 74 1.22 174.1 184.62 6.53S
178 30 0 -43 4 46 13 21 32 40 74 1.20 174.1 184.55 6.46S
179 0 0 -43 8 21 13 22 6 40 73 1.18 174.0 184.48 6.39S
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 1 meters [CHARM/CADARS, 1 measures]
C A S S I N I R E G I O N G R A Z E
Librations Long -4.12 Lat -6.88
P +185.79 D -6.21
Illumination of moon 70%-
Elongation of Moon 114
Vertical Profile Scale 2.07 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.67 deg/min
At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
3.2 4.7 6.1 6.9 7.3 7.6 7.9 8.0
5.2 4.7 6.1 6.9 7.4 7.7 7.9 8.1
7.2 5.5 6.9 7.7 8.2 8.5 8.8 8.9
9.2 5.5 7.0 7.7 8.2 8.6 8.8 9.0
11.2 5.5 7.0 7.7 8.2 8.6 8.8 9.0
------------------------------------------------------------------------------
Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Chch graze 172.6 -43.5 139km 13 15 16
MidNZ 173.0 -41.0 143km 13 15 38
Wellington 174.8 -41.3 140km 13 17 29
Lunar Limb Profile
