Predictions for Grazing Occultation of ZC 1853, 2008 May 16
Grazing Occultation of 1853 cM3 Magnitude 4.8v
1853 = psi Virginis
Date 2008 May 16 (Friday) Nominal site altitude 0m
E. Longit. Latitude U.T. Sun Moon TanZ PA WA CA
o ' " o ' " h m s Alt Alt Az o o o
136 0 0 -30 33 49 11 41 4 68 21 0.41 41.9 20.23 23.49N
136 10 0 -30 42 51 11 41 41 68 20 0.41 41.8 20.18 23.44N
136 20 0 -30 51 50 11 42 18 68 19 0.41 41.8 20.14 23.40N
136 30 0 -31 0 47 11 42 54 68 18 0.41 41.7 20.10 23.35N
136 40 0 -31 9 40 11 43 31 68 17 0.41 41.7 20.05 23.31N
136 50 0 -31 18 31 11 44 7 68 17 0.41 41.7 20.00 23.26N
137 0 0 -31 27 20 11 44 44 67 16 0.41 41.6 19.96 23.21N
137 10 0 -31 36 5 11 45 20 67 15 0.42 41.6 19.91 23.17N
137 20 0 -31 44 47 11 45 56 67 14 0.42 41.5 19.86 23.12N
137 30 0 -31 53 27 11 46 32 67 13 0.42 41.5 19.81 23.07N
137 40 0 -32 2 4 11 47 8 67 12 0.42 41.4 19.76 23.02N
137 50 0 -32 10 37 11 47 43 67 11 0.42 41.4 19.71 22.97N
138 0 0 -32 19 8 11 48 19 67 10 0.42 41.3 19.66 22.92N
138 10 0 -32 27 36 11 48 54 67 10 0.43 41.3 19.61 22.87N
138 20 0 -32 36 1 11 49 29 67 9 0.43 41.2 19.56 22.82N
138 30 0 -32 44 23 11 50 5 67 8 0.43 41.2 19.51 22.77N
138 40 0 -32 52 42 11 50 39 67 7 0.43 41.1 19.46 22.71N
138 50 0 -33 0 58 11 51 14 67 6 0.43 41.1 19.40 22.66N
139 0 0 -33 9 12 11 51 49 66 5 0.44 41.0 19.35 22.61N
139 10 0 -33 17 22 11 52 23 66 5 0.44 40.9 19.30 22.55N
139 20 0 -33 25 29 11 52 58 66 4 0.44 40.9 19.24 22.50N
139 30 0 -33 33 33 11 53 32 66 3 0.44 40.8 19.19 22.45N
139 40 0 -33 41 34 11 54 6 66 2 0.45 40.8 19.13 22.39N
139 50 0 -33 49 32 11 54 40 66 2 0.45 40.7 19.08 22.34N
140 0 0 -33 57 27 11 55 14 66 1 0.45 40.7 19.02 22.28N
140 10 0 -34 5 20 11 55 47 66 0 0.45 40.6 18.96 22.22N
140 20 0 -34 13 9 11 56 21 65 359 0.46 40.6 18.91 22.17N
140 30 0 -34 20 55 11 56 54 65 359 0.46 40.5 18.85 22.11N
140 40 1 -34 28 38 11 57 27 65 358 0.46 40.4 18.79 22.05N
140 50 1 -34 36 18 11 58 0 65 357 0.47 40.4 18.74 21.99N
141 0 1 -34 43 55 11 58 33 65 356 0.47 40.3 18.68 21.94N
141 10 1 -34 51 29 11 59 6 65 356 0.47 40.3 18.62 21.88N
141 20 1 -34 59 0 11 59 38 65 355 0.48 40.2 18.56 21.82N
141 30 1 -35 6 29 12 0 10 64 354 0.48 40.2 18.50 21.76N
141 40 1 -35 13 54 12 0 43 64 354 0.48 40.1 18.44 21.70N
141 50 1 -35 21 16 12 1 15 64 353 0.48 40.0 18.38 21.64N
142 0 1 -35 28 35 12 1 46 64 352 0.49 40.0 18.32 21.58N
142 10 1 -35 35 52 12 2 18 64 352 0.49 39.9 18.26 21.52N
142 20 1 -35 43 5 12 2 50 64 351 0.49 39.9 18.20 21.46N
142 30 1 -35 50 15 12 3 21 64 351 0.50 39.8 18.14 21.40N
142 40 1 -35 57 23 12 3 52 63 350 0.50 39.7 18.08 21.34N
142 50 1 -36 4 27 12 4 23 63 349 0.51 39.7 18.02 21.28N
143 0 1 -36 11 29 12 4 54 63 349 0.51 39.6 17.96 21.22N
143 10 1 -36 18 28 12 5 25 63 348 0.51 39.6 17.90 21.16N
143 20 1 -36 25 23 12 5 55 63 348 0.52 39.5 17.84 21.10N
143 30 1 -36 32 16 12 6 26 63 347 0.52 39.4 17.78 21.04N
143 40 1 -36 39 6 12 6 56 62 346 0.52 39.4 17.71 20.97N
143 50 1 -36 45 54 12 7 26 62 346 0.53 39.3 17.65 20.91N
144 0 1 -36 52 38 12 7 56 62 345 0.53 39.2 17.59 20.85N
144 10 1 -36 59 19 12 8 26 62 345 0.53 39.2 17.53 20.79N
144 20 1 -37 5 58 12 8 55 62 344 0.54 39.1 17.47 20.73N
144 30 1 -37 12 34 12 9 25 62 344 0.54 39.1 17.40 20.66N
144 40 1 -37 19 7 12 9 54 61 343 0.55 39.0 17.34 20.60N
144 50 1 -37 25 37 12 10 23 61 343 0.55 38.9 17.28 20.54N
145 0 1 -37 32 4 12 10 52 61 342 0.55 38.9 17.22 20.48N
145 10 1 -37 38 29 12 11 21 61 342 0.56 38.8 17.15 20.41N
145 20 1 -37 44 51 12 11 50 61 341 0.56 38.7 17.09 20.35N
145 30 1 -37 51 10 12 12 18 61 341 0.57 38.7 17.03 20.29N
145 40 1 -37 57 27 12 12 46 60 340 0.57 38.6 16.96 20.23N
145 50 1 -38 3 40 12 13 15 60 340 0.57 38.6 16.90 20.16N
146 0 1 -38 9 51 12 13 43 60 339 0.58 38.5 16.84 20.10N
146 10 1 -38 15 59 12 14 10 60 339 0.58 38.4 16.78 20.04N
146 20 1 -38 22 5 12 14 38 60 338 0.59 38.4 16.71 19.97N
146 30 1 -38 28 8 12 15 6 59 338 0.59 38.3 16.65 19.91N
146 40 1 -38 34 8 12 15 33 59 337 0.59 38.2 16.59 19.85N
146 50 1 -38 40 6 12 16 0 59 337 0.60 38.2 16.52 19.78N
147 0 1 -38 46 1 12 16 27 59 336 0.60 38.1 16.46 19.72N
Path coordinates are referred to WGS84 (as used by GPS).
1853 is double : 5.0 8.3 0.040" 110.0
Graze Path of component #2 0.02km South, and 0.1 secs. later cf. primary.
1853 = psi Vir, 4.73 to 4.96 V , Type LB
Librations Long +4.29 Lat +4.90
P +16.8 D -3.2
Illumination of moon 88%+
Elongation of Moon 140
Vertical Profile Scale 2.00 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.33 deg/min
Limiting Magnitudes for various telescope apertures (in mm)
CA\Tdia 50 100 150 200 250 300 350
15.7 5.6 7.0 7.8 8.3 8.7 9.0 9.2
17.7 5.6 7.0 7.8 8.3 8.7 9.0 9.2
19.7 5.6 7.0 7.8 8.4 8.7 9.0 9.2
21.7 5.6 7.0 7.8 8.4 8.7 9.0 9.2
23.7 5.6 7.1 7.9 8.4 8.7 9.0 9.2
Lunar Limb Profile
