Grazing Occultation of 3515 cA1 Magnitude 6.3 Date 2007 August 2 (Thursday) 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 111 0 0 -26 49 16 19 18 9 60 14 0.57 316.0 338.21 18.55N 111 10 0 -26 39 55 19 18 41 61 13 0.56 315.9 338.18 18.58N 111 20 0 -26 30 32 19 19 12 61 13 0.56 315.9 338.14 18.62N 111 30 0 -26 21 6 19 19 44 61 12 0.55 315.9 338.09 18.67N 111 40 0 -26 11 38 19 20 16 61 12 0.55 315.8 338.06 18.70N 111 50 0 -26 2 7 19 20 48 61 11 0.54 315.8 338.02 18.74N 112 0 0 -25 52 34 19 21 20 62 11 0.54 315.7 337.98 18.78N 112 10 0 -25 42 59 19 21 53 62 10 0.53 315.7 337.95 18.81N 112 20 0 -25 33 21 19 22 25 62 10 0.53 315.7 337.91 18.85N 112 30 0 -25 23 41 19 22 58 62 9 0.53 315.6 337.88 18.88N 112 40 0 -25 13 59 19 23 31 62 8 0.52 315.6 337.84 18.92N 112 50 0 -25 4 14 19 24 4 63 8 0.52 315.6 337.81 18.95N 113 0 0 -24 54 27 19 24 37 63 7 0.51 315.5 337.77 18.98N 113 10 0 -24 44 38 19 25 10 63 6 0.51 315.5 337.74 19.02N 113 20 0 -24 34 47 19 25 44 63 6 0.50 315.5 337.71 19.05N 113 30 0 -24 24 54 19 26 17 63 5 0.50 315.4 337.68 19.08N 113 40 0 -24 14 59 19 26 51 64 4 0.50 315.4 337.65 19.11N 113 50 0 -24 5 1 19 27 25 64 4 0.49 315.4 337.62 19.14N 114 0 0 -23 55 2 19 27 59 64 3 0.49 315.4 337.59 19.17N 114 10 0 -23 45 1 19 28 33 64 2 0.48 315.3 337.56 19.19N 114 20 0 -23 34 57 19 29 7 64 2 0.48 315.3 337.54 19.22N 114 30 0 -23 24 52 19 29 42 65 1 0.48 315.3 337.51 19.25N 114 40 0 -23 14 45 19 30 16 65 0 0.47 315.3 337.49 19.27N 114 50 0 -23 4 37 19 30 51 65 360 0.47 315.2 337.46 19.30N 115 0 0 -22 54 26 19 31 26 65 359 0.47 315.2 337.44 19.32N 115 10 0 -22 44 14 19 32 0 65 358 0.46 315.2 337.42 19.34N 115 20 0 -22 34 0 19 32 35 65 357 0.46 315.2 337.38 19.37N 115 30 0 -22 23 45 19 33 11 66 357 0.46 315.1 337.36 19.40N 115 40 1 -22 13 28 19 33 46 66 356 0.45 315.1 337.34 19.42N 115 50 1 -22 3 9 19 34 21 66 355 0.45 315.1 337.32 19.44N 116 0 1 -21 52 49 19 34 56 66 354 0.45 315.1 337.30 19.46N Path coordinates are referred to WGS84 (as used by GPS). 3515 is double : 7.0 7.0 0.050" 0.0 Graze Path of component #2 0.07km South, and 0.1 secs. later cf. primary. Librations Long -1.72 Lat -2.91 P +337.4 D +3.6 Illumination of moon 83%- Elongation of Moon 131 Vertical Profile Scale 2.00 km/arcsec at mean distance of moon Horizontal Scale Factor 1.41 deg/min Limiting Magnitudes for various telescope apertures (in mm) CA\Tdia 50 100 150 200 250 300 350 15.5 5.7 7.1 7.9 8.5 8.8 9.1 9.3 17.5 5.7 7.1 7.9 8.5 8.8 9.1 9.3 19.5 5.7 7.1 7.9 8.5 8.8 9.1 9.3 21.5 5.7 7.1 8.0 8.5 8.9 9.1 9.3 23.5 5.7 7.2 8.0 8.5 8.9 9.1 9.3