Predictions for Grazing Occultation of SAO 187821, 2008 Feb 4
Grazing Occultation of 187821 G1 Magnitude 8.6
Date 2008 February 4 (Monday) 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
170 30 0 -42 35 57 16 16 51 11 115 5.36 177.4 183.66 10.04S
170 40 0 -42 40 55 16 16 54 11 115 5.28 177.4 183.65 10.03S
170 50 0 -42 45 53 16 16 58 11 115 5.21 177.4 183.64 10.02S
171 0 0 -42 50 50 16 17 1 11 115 5.13 177.4 183.63 10.01S
171 10 0 -42 55 47 16 17 5 11 115 5.06 177.4 183.62 10.00S
171 20 0 -43 0 43 16 17 9 11 115 4.99 177.4 183.61 9.99S
171 30 0 -43 5 39 16 17 13 11 114 4.92 177.3 183.60 9.98S
171 40 0 -43 10 35 16 17 16 12 114 4.85 177.3 183.59 9.97S
171 50 0 -43 15 30 16 17 20 12 114 4.79 177.3 183.58 9.96S
172 0 0 -43 20 25 16 17 24 12 114 4.72 177.3 183.57 9.95S
172 10 0 -43 25 19 16 17 28 12 114 4.66 177.3 183.56 9.94S
172 20 0 -43 30 13 16 17 32 12 114 4.60 177.3 183.55 9.93S
172 30 0 -43 35 6 16 17 36 12 114 4.54 177.3 183.54 9.92S
172 40 0 -43 39 59 16 17 40 13 114 4.48 177.3 183.53 9.91S
172 50 0 -43 44 52 16 17 44 13 113 4.43 177.3 183.52 9.90S
173 0 0 -43 49 44 16 17 49 13 113 4.37 177.2 183.51 9.89S
173 10 0 -43 54 35 16 17 53 13 113 4.32 177.2 183.50 9.88S
Path coordinates are referred to WGS84 (as used by GPS).
Librations Long -3.56 Lat +4.03
P +183.2 D +4.5
Illumination of moon 6%-
Elongation of Moon 29
Vertical Profile Scale 2.17 km/arcsec at mean distance of moon
Horizontal Scale Factor 2.02 deg/min
Limiting Magnitudes for various telescope apertures (in mm)
CA\Tdia 50 100 150 200 250 300 350
5.9 7.4 8.9 9.7 10.2 10.6 10.9 11.1
7.9 7.4 8.9 9.7 10.3 10.7 10.9 11.2
9.9 7.5 8.9 9.7 10.3 10.7 11.0 11.2
11.9 7.5 8.9 9.8 10.3 10.7 11.0 11.2
13.9 7.5 9.0 9.8 10.3 10.7 11.0 11.2
Lunar Limb Profile
