Grazing Occultation of 2821 K1 Magnitude 8.4 [Red = 7.7] Date: 2011 Mar 27 12h 9m, to 2011 Mar 27 12h 19m Nominal site altitude 666m E. Longit. Latitude U.T. Sun Moon TanZ PA AA CA o ' o ' h m s Alt Alt Az o o o -123 0.00 36 11.85 12 8 53 18 135 3.03 350.5 356.85 1.93N -122 54.00 36 10.58 12 9 1 18 135 3.01 350.4 356.81 1.96N -122 48.00 36 9.32 12 9 10 18 135 2.99 350.4 356.79 1.99N -122 42.00 36 8.07 12 9 18 19 135 2.98 350.4 356.76 2.01N -122 36.00 36 6.83 12 9 27 19 135 2.96 350.4 356.74 2.04N -122 30.00 36 5.60 12 9 35 19 135 2.95 350.3 356.71 2.06N -122 24.00 36 4.39 12 9 44 19 135 2.93 350.3 356.69 2.09N -122 18.00 36 3.18 12 9 53 19 135 2.92 350.3 356.66 2.11N -122 12.00 36 1.98 12 10 2 19 136 2.90 350.3 356.64 2.14N -122 6.00 36 0.79 12 10 10 19 136 2.89 350.2 356.61 2.16N -122 0.00 35 59.62 12 10 19 19 136 2.87 350.2 356.59 2.19N -121 54.00 35 58.45 12 10 28 19 136 2.86 350.2 356.56 2.21N -121 48.00 35 57.30 12 10 37 19 136 2.84 350.1 356.54 2.24N -121 42.00 35 56.15 12 10 46 19 136 2.83 350.1 356.51 2.27N -121 36.00 35 55.02 12 10 55 20 136 2.81 350.1 356.48 2.29N -121 30.00 35 53.90 12 11 4 20 136 2.80 350.1 356.46 2.32N -121 24.00 35 52.79 12 11 14 20 136 2.79 350.0 356.43 2.35N -121 18.00 35 51.69 12 11 23 20 136 2.77 350.0 356.41 2.37N -121 12.00 35 50.60 12 11 32 20 137 2.76 350.0 356.38 2.40N -121 6.00 35 49.52 12 11 41 20 137 2.74 350.0 356.35 2.43N -121 0.00 35 48.46 12 11 51 20 137 2.73 349.9 356.32 2.45N -120 54.00 35 47.40 12 12 0 20 137 2.72 349.9 356.30 2.48N -120 48.00 35 46.36 12 12 10 20 137 2.70 349.9 356.27 2.51N -120 42.00 35 45.32 12 12 19 20 137 2.69 349.9 356.24 2.53N -120 36.00 35 44.30 12 12 29 20 137 2.68 349.8 356.22 2.56N -120 30.00 35 43.29 12 12 39 21 137 2.67 349.8 356.19 2.59N -120 24.00 35 42.30 12 12 48 21 137 2.65 349.8 356.16 2.62N -120 18.00 35 41.31 12 12 58 21 138 2.64 349.7 356.13 2.64N -120 12.00 35 40.33 12 13 8 21 138 2.63 349.7 356.10 2.67N -120 6.00 35 39.37 12 13 18 21 138 2.62 349.7 356.08 2.70N -120 0.00 35 38.42 12 13 28 21 138 2.60 349.7 356.05 2.73N -119 54.00 35 37.48 12 13 38 21 138 2.59 349.6 356.02 2.76N -119 48.00 35 36.55 12 13 48 21 138 2.58 349.6 355.99 2.79N -119 42.00 35 35.64 12 13 58 21 138 2.57 349.6 355.96 2.81N -119 36.00 35 34.74 12 14 8 21 138 2.56 349.5 355.93 2.84N -119 30.00 35 33.84 12 14 19 21 138 2.55 349.5 355.90 2.87N -119 24.00 35 32.97 12 14 29 22 139 2.53 349.5 355.87 2.90N -119 18.00 35 32.10 12 14 39 22 139 2.52 349.5 355.85 2.93N -119 12.00 35 31.24 12 14 50 22 139 2.51 349.4 355.82 2.96N -119 6.00 35 30.40 12 15 0 22 139 2.50 349.4 355.79 2.99N -119 0.00 35 29.57 12 15 10 22 139 2.49 349.4 355.76 3.02N -118 54.00 35 28.76 12 15 21 22 139 2.48 349.3 355.73 3.05N -118 48.00 35 27.95 12 15 32 22 139 2.47 349.3 355.70 3.08N -118 42.00 35 27.16 12 15 42 22 139 2.46 349.3 355.67 3.11N -118 36.00 35 26.38 12 15 53 22 139 2.45 349.2 355.64 3.14N -118 30.00 35 25.61 12 16 4 22 140 2.44 349.2 355.61 3.17N -118 24.00 35 24.86 12 16 15 22 140 2.42 349.2 355.58 3.20N -118 18.00 35 24.12 12 16 26 22 140 2.41 349.2 355.55 3.23N -118 12.00 35 23.39 12 16 36 23 140 2.40 349.1 355.51 3.26N -118 6.00 35 22.68 12 16 47 23 140 2.39 349.1 355.48 3.29N -118 0.00 35 21.97 12 16 58 23 140 2.38 349.1 355.45 3.32N -117 54.00 35 21.29 12 17 10 23 140 2.37 349.0 355.42 3.35N -117 48.00 35 20.61 12 17 21 23 140 2.36 349.0 355.39 3.39N -117 42.00 35 19.95 12 17 32 23 141 2.35 349.0 355.36 3.42N -117 36.00 35 19.30 12 17 43 23 141 2.35 348.9 355.33 3.45N -117 30.00 35 18.67 12 17 55 23 141 2.34 348.9 355.30 3.48N -117 24.00 35 18.04 12 18 6 23 141 2.33 348.9 355.26 3.51N -117 18.00 35 17.44 12 18 17 23 141 2.32 348.8 355.23 3.54N -117 12.00 35 16.84 12 18 29 23 141 2.31 348.8 355.20 3.58N -117 6.00 35 16.26 12 18 40 24 141 2.30 348.8 355.17 3.61N -117 0.00 35 15.69 12 18 52 24 141 2.29 348.7 355.14 3.64N Path coordinates are referred to WGS84 (as used by GPS), with the nominal site altitude being referenced to Mean Sea Level. Projected diameter of star 2 meters [Estimated] Librations Long +7.42 Lat -1.58 P +355.84 D +1.32 Illumination of moon 39%- Elongation of Moon 78 Vertical Profile Scale 3.62 km/arcsec at mean distance of moon Horizontal Scale Factor 1.39 deg/min At longitude -120.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -1.3 3.0 4.3 5.0 5.4 5.6 5.8 5.9 0.7 4.7 6.1 6.8 7.2 7.5 7.7 7.9 2.7 4.7 6.1 6.8 7.3 7.6 7.8 7.9 4.7 5.5 6.9 7.6 8.1 8.4 8.6 8.8 6.7 5.5 6.9 7.7 8.1 8.4 8.7 8.8 ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s