Grazing Occultation of 2617 cK0 Magnitude 4.6 Date 2006 October 27 (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 173 0 0 -37 20 58 8 23 52 38 260 1.29 167.7 168.51 14.45S 173 10 0 -37 15 7 8 24 6 38 260 1.30 167.7 168.48 14.48S 173 20 0 -37 9 15 8 24 20 37 260 1.31 167.7 168.46 14.50S 173 30 0 -37 3 23 8 24 35 37 260 1.32 167.6 168.44 14.51S 173 40 0 -36 57 29 8 24 49 37 260 1.33 167.6 168.42 14.53S 173 50 0 -36 51 35 8 25 3 37 259 1.34 167.6 168.41 14.55S 174 0 0 -36 45 39 8 25 17 37 259 1.35 167.6 168.39 14.57S 174 10 0 -36 39 43 8 25 31 36 259 1.36 167.6 168.37 14.58S 174 20 0 -36 33 46 8 25 45 36 259 1.37 167.6 168.36 14.60S 174 30 0 -36 27 49 8 25 59 36 259 1.38 167.5 168.34 14.62S 174 40 0 -36 21 50 8 26 13 36 258 1.39 167.5 168.32 14.63S 174 50 0 -36 15 51 8 26 27 36 258 1.40 167.5 168.31 14.65S Path coordinates are referred to WGS84 (as used by GPS). 2617 is double : 5.1 5.9 0.26" 12.0 Graze Path of component #2 0.47km South, and 0.2 secs. later cf. primary. Librations Long -6.93 Lat +6.30 P +167.6 D +5.0 Illumination of moon 24%+ Elongation of Moon 58 Vertical Profile Scale 2.01 km/arcsec at mean distance of moon Horizontal Scale Factor 1.72 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 10.6 6.0 7.5 8.3 8.8 9.2 9.5 9.8 12.6 6.0 7.5 8.3 8.9 9.3 9.6 9.8 14.6 6.1 7.6 8.4 8.9 9.3 9.6 9.9 16.6 6.1 7.6 8.4 9.0 9.4 9.7 9.9 18.6 6.2 7.7 8.5 9.0 9.4 9.7 10.0