Grazing Occultation of 75987SA3 Magnitude 7.2 [Red = 7.1] Date: 2010 Jan 25 6h 39m, to 2010 Jan 25 7h 2m Nominal site altitude 250m E. Longit. Latitude U.T. Sun Moon TanZ PA AA CA o ' " o ' " h m s Alt Alt Az o o o -111 0 0 52 49 43 6 39 19 37 261 1.35 353.9 8.52 6.07N -110 45 0 52 46 22 6 39 32 36 261 1.36 353.9 8.56 6.11N -110 30 0 52 42 59 6 39 46 36 262 1.37 353.9 8.59 6.14N -110 15 0 52 39 34 6 39 59 36 262 1.38 354.0 8.63 6.18N -110 0 0 52 36 7 6 40 12 36 262 1.39 354.0 8.66 6.21N -109 45 0 52 32 39 6 40 25 36 263 1.39 354.1 8.70 6.25N -109 30 0 52 29 9 6 40 39 35 263 1.40 354.1 8.73 6.28N -109 15 0 52 25 36 6 40 52 35 263 1.41 354.1 8.77 6.32N -109 0 0 52 22 2 6 41 5 35 263 1.42 354.2 8.80 6.35N -108 45 0 52 18 26 6 41 18 35 264 1.43 354.2 8.84 6.39N -108 30 0 52 14 49 6 41 31 35 264 1.44 354.2 8.87 6.42N -108 15 0 52 11 9 6 41 44 35 264 1.45 354.3 8.90 6.45N -108 0 0 52 7 28 6 41 57 34 265 1.46 354.3 8.94 6.49N -107 45 0 52 3 45 6 42 10 34 265 1.47 354.3 8.97 6.52N -107 30 0 52 0 0 6 42 22 34 265 1.48 354.4 9.01 6.56N -107 15 0 51 56 13 6 42 35 34 265 1.49 354.4 9.04 6.59N -107 0 0 51 52 24 6 42 48 34 266 1.50 354.4 9.07 6.62N -106 45 0 51 48 34 6 43 1 33 266 1.51 354.5 9.11 6.66N -106 30 0 51 44 41 6 43 14 33 266 1.52 354.5 9.14 6.69N -106 15 0 51 40 47 6 43 26 33 267 1.53 354.5 9.17 6.72N -106 0 0 51 36 51 6 43 39 33 267 1.54 354.6 9.20 6.75N -105 45 0 51 32 53 6 43 51 33 267 1.56 354.6 9.24 6.79N -105 30 0 51 28 54 6 44 4 33 267 1.57 354.6 9.27 6.82N -105 15 0 51 24 52 6 44 16 32 268 1.58 354.7 9.30 6.85N -105 0 0 51 20 49 6 44 29 32 268 1.59 354.7 9.33 6.88N -104 45 0 51 16 44 6 44 41 32 268 1.60 354.7 9.37 6.92N -104 30 0 51 12 37 6 44 54 32 269 1.61 354.7 9.40 6.95N -104 15 0 51 8 28 6 45 6 32 269 1.62 354.8 9.43 6.98N -104 0 0 51 4 18 6 45 18 31 269 1.64 354.8 9.46 7.01N -103 45 0 51 0 5 6 45 30 31 269 1.65 354.8 9.49 7.04N -103 30 0 50 55 51 6 45 43 31 270 1.66 354.9 9.52 7.07N -103 15 0 50 51 35 6 45 55 31 270 1.67 354.9 9.56 7.11N -103 0 0 50 47 18 6 46 7 31 270 1.69 354.9 9.59 7.14N -102 45 0 50 42 58 6 46 19 30 271 1.70 355.0 9.62 7.17N -102 30 0 50 38 37 6 46 31 30 271 1.71 355.0 9.65 7.20N -102 15 0 50 34 14 6 46 43 30 271 1.72 355.0 9.68 7.23N -102 0 0 50 29 49 6 46 55 30 271 1.74 355.1 9.71 7.26N -101 45 0 50 25 22 6 47 7 30 272 1.75 355.1 9.74 7.29N -101 30 0 50 20 54 6 47 19 30 272 1.77 355.1 9.77 7.32N -101 15 0 50 16 23 6 47 30 29 272 1.78 355.1 9.80 7.35N -101 0 0 50 11 51 6 47 42 29 272 1.79 355.2 9.83 7.38N -100 45 0 50 7 18 6 47 54 29 273 1.81 355.2 9.86 7.41N -100 30 0 50 2 42 6 48 5 29 273 1.82 355.2 9.89 7.44N -100 15 0 49 58 5 6 48 17 29 273 1.84 355.3 9.92 7.47N -100 0 0 49 53 26 6 48 28 28 273 1.85 355.3 9.95 7.50N - 99 45 0 49 48 45 6 48 40 28 274 1.87 355.3 9.98 7.53N - 99 30 0 49 44 3 6 48 51 28 274 1.88 355.4 10.00 7.55N - 99 15 0 49 39 19 6 49 2 28 274 1.90 355.4 10.03 7.58N - 99 0 0 49 34 33 6 49 14 28 275 1.92 355.4 10.06 7.61N - 98 45 0 49 29 45 6 49 25 27 275 1.93 355.4 10.09 7.64N - 98 30 0 49 24 56 6 49 36 27 275 1.95 355.5 10.12 7.67N - 98 15 0 49 20 4 6 49 47 27 275 1.97 355.5 10.15 7.70N - 98 0 0 49 15 12 6 49 58 27 276 1.98 355.5 10.17 7.72N - 97 45 0 49 10 17 6 50 9 27 276 2.00 355.6 10.20 7.75N - 97 30 0 49 5 21 6 50 20 26 276 2.02 355.6 10.23 7.78N - 97 15 0 49 0 23 6 50 31 26 276 2.04 355.6 10.26 7.81N - 97 0 0 48 55 23 6 50 42 26 277 2.05 355.6 10.28 7.83N - 96 45 0 48 50 22 6 50 53 26 277 2.07 355.7 10.31 7.86N - 96 30 0 48 45 19 6 51 3 26 277 2.09 355.7 10.34 7.89N - 96 15 0 48 40 15 6 51 14 25 277 2.11 355.7 10.37 7.92N - 96 0 0 48 35 8 6 51 25 25 278 2.13 355.7 10.39 7.94N - 95 45 0 48 30 1 6 51 35 25 278 2.15 355.8 10.42 7.97N - 95 30 0 48 24 51 6 51 46 25 278 2.17 355.8 10.44 7.99N - 95 15 0 48 19 40 6 51 56 25 278 2.19 355.8 10.47 8.02N - 95 0 0 48 14 27 6 52 6 24 279 2.21 355.8 10.50 8.05N - 94 45 0 48 9 13 6 52 17 24 279 2.23 355.9 10.52 8.07N - 94 30 0 48 3 57 6 52 27 24 279 2.26 355.9 10.55 8.10N - 94 15 0 47 58 39 6 52 37 24 279 2.28 355.9 10.57 8.12N - 94 0 0 47 53 20 6 52 47 23 279 2.30 355.9 10.60 8.15N - 93 45 0 47 47 59 6 52 57 23 280 2.32 356.0 10.62 8.17N - 93 30 0 47 42 37 6 53 7 23 280 2.35 356.0 10.65 8.20N - 93 15 0 47 37 13 6 53 17 23 280 2.37 356.0 10.67 8.22N - 93 0 0 47 31 47 6 53 27 23 280 2.40 356.0 10.70 8.25N - 92 45 0 47 26 20 6 53 36 22 281 2.42 356.1 10.72 8.27N - 92 30 0 47 20 52 6 53 46 22 281 2.45 356.1 10.74 8.29N - 92 15 0 47 15 22 6 53 55 22 281 2.47 356.1 10.77 8.32N - 92 0 0 47 9 50 6 54 5 22 281 2.50 356.1 10.79 8.34N - 91 45 0 47 4 17 6 54 14 22 282 2.53 356.2 10.81 8.36N - 91 30 0 46 58 42 6 54 24 21 282 2.55 356.2 10.84 8.39N - 91 15 0 46 53 6 6 54 33 21 282 2.58 356.2 10.86 8.41N - 91 0 0 46 47 29 6 54 42 21 282 2.61 356.2 10.88 8.43N - 90 45 0 46 41 50 6 54 51 21 283 2.64 356.3 10.90 8.46N - 90 30 0 46 36 9 6 55 0 21 283 2.67 356.3 10.93 8.48N - 90 15 0 46 30 27 6 55 9 20 283 2.70 356.3 10.95 8.50N - 90 0 0 46 24 44 6 55 18 20 283 2.73 356.3 10.97 8.52N - 89 45 0 46 18 59 6 55 27 20 283 2.76 356.3 10.99 8.54N - 89 30 0 46 13 13 6 55 36 20 284 2.80 356.4 11.02 8.57N - 89 15 0 46 7 26 6 55 44 19 284 2.83 356.4 11.04 8.59N - 89 0 0 46 1 37 6 55 53 19 284 2.86 356.4 11.06 8.61N - 88 45 0 45 55 46 6 56 1 19 284 2.90 356.4 11.08 8.63N - 88 30 0 45 49 55 6 56 10 19 285 2.94 356.4 11.10 8.65N - 88 15 0 45 44 2 6 56 18 19 285 2.97 356.5 11.12 8.67N - 88 0 0 45 38 7 6 56 26 18 285 3.01 356.5 11.14 8.69N - 87 45 0 45 32 12 6 56 34 18 285 3.05 356.5 11.16 8.71N - 87 30 0 45 26 15 6 56 43 18 285 3.09 356.5 11.18 8.73N - 87 15 0 45 20 16 6 56 50 18 286 3.13 356.5 11.20 8.75N - 87 0 0 45 14 17 6 56 58 18 286 3.17 356.6 11.22 8.77N - 86 45 0 45 8 16 6 57 6 17 286 3.21 356.6 11.24 8.79N - 86 30 0 45 2 14 6 57 14 17 286 3.26 356.6 11.26 8.81N - 86 15 0 44 56 10 6 57 22 17 286 3.30 356.6 11.28 8.83N - 86 0 0 44 50 6 6 57 29 17 287 3.35 356.6 11.30 8.85N - 85 45 0 44 44 0 6 57 37 16 287 3.40 356.7 11.32 8.87N - 85 30 0 44 37 53 6 57 44 16 287 3.45 356.7 11.33 8.89N - 85 15 0 44 31 45 6 57 51 16 287 3.50 356.7 11.35 8.90N - 85 0 0 44 25 35 6 57 58 16 288 3.55 356.7 11.37 8.92N - 84 45 0 44 19 25 6 58 6 16 288 3.60 356.7 11.39 8.94N - 84 30 0 44 13 13 6 58 13 15 288 3.66 356.8 11.41 8.96N - 84 15 0 44 7 0 6 58 19 15 288 3.71 356.8 11.42 8.97N - 84 0 0 44 0 46 6 58 26 15 288 3.77 356.8 11.44 8.99N - 83 45 0 43 54 31 6 58 33 15 289 3.83 356.8 11.46 9.01N - 83 30 0 43 48 15 6 58 40 14 289 3.89 356.8 11.47 9.03N - 83 15 0 43 41 58 6 58 46 14 289 3.96 356.8 11.49 9.04N - 83 0 0 43 35 39 6 58 53 14 289 4.02 356.9 11.51 9.06N - 82 45 0 43 29 20 6 58 59 14 289 4.09 356.9 11.52 9.07N - 82 30 0 43 23 0 6 59 5 14 290 4.16 356.9 11.54 9.09N - 82 15 0 43 16 38 6 59 11 13 290 4.24 356.9 11.56 9.11N - 82 0 0 43 10 16 6 59 17 13 290 4.31 356.9 11.57 9.12N - 81 45 0 43 3 53 6 59 23 13 290 4.39 356.9 11.59 9.14N - 81 30 0 42 57 28 6 59 29 13 290 4.47 356.9 11.60 9.15N - 81 15 0 42 51 3 6 59 35 12 290 4.55 357.0 11.62 9.17N - 81 0 0 42 44 37 6 59 41 12 291 4.64 357.0 11.63 9.18N - 80 45 0 42 38 10 6 59 46 12 291 4.73 357.0 11.65 9.20N - 80 30 0 42 31 42 6 59 52 12 291 4.83 357.0 11.66 9.21N - 80 15 0 42 25 13 6 59 57 11 291 4.92 357.0 11.67 9.22N - 80 0 0 42 18 43 7 0 2 11 291 5.03 357.0 11.69 9.24N - 79 45 0 42 12 12 7 0 8 11 292 5.13 357.0 11.70 9.25N - 79 30 0 42 5 40 7 0 13 11 292 5.24 357.1 11.71 9.27N - 79 15 0 41 59 8 7 0 18 11 292 5.36 357.1 11.73 9.28N - 79 0 0 41 52 35 7 0 22 10 292 5.48 357.1 11.74 9.29N - 78 45 0 41 46 1 7 0 27 10 292 5.61 357.1 11.75 9.30N - 78 30 0 41 39 26 7 0 32 10 293 5.74 357.1 11.77 9.32N - 78 15 0 41 32 51 7 0 36 10 293 5.88 357.1 11.78 9.33N - 78 0 0 41 26 14 7 0 41 9 293 6.02 357.1 11.79 9.34N - 77 45 0 41 19 37 7 0 45 9 293 6.17 357.1 11.80 9.35N - 77 30 0 41 13 0 7 0 49 9 293 6.33 357.2 11.81 9.37N - 77 15 0 41 6 21 7 0 54 9 293 6.50 357.2 11.83 9.38N - 77 0 0 40 59 42 7 0 58 9 294 6.68 357.2 11.84 9.39N - 76 45 0 40 53 2 7 1 1 8 294 6.87 357.2 11.85 9.40N - 76 30 0 40 46 22 7 1 5 8 294 7.06 357.2 11.86 9.41N - 76 15 0 40 39 41 7 1 9 8 294 7.27 357.2 11.87 9.42N - 76 0 0 40 32 59 7 1 13 8 294 7.50 357.2 11.88 9.43N - 75 45 0 40 26 17 7 1 16 7 295 7.73 357.2 11.89 9.44N - 75 30 0 40 19 34 7 1 19 7 295 7.98 357.2 11.90 9.45N - 75 15 0 40 12 50 7 1 23 7 295 8.25 357.3 11.91 9.46N - 75 0 0 40 6 6 7 1 26 7 295 8.54 357.3 11.92 9.47N - 74 45 0 39 59 22 7 1 29 6 295 8.85 357.3 11.93 9.48N - 74 30 0 39 52 37 7 1 32 6 295 9.18 357.3 11.94 9.49N - 74 15 0 39 45 51 7 1 35 6 296 9.53 357.3 11.95 9.50N - 74 0 0 39 39 5 7 1 38 6 296 9.92 357.3 11.96 9.51N - 73 45 0 39 32 18 7 1 40 6 296 10.33 357.3 11.97 9.52N - 73 30 0 39 25 31 7 1 43 5 296 10.78 357.3 11.97 9.53N - 73 15 0 39 18 44 7 1 45 5 296 11.28 357.3 11.98 9.53N - 73 0 0 39 11 56 7 1 47 5 296 11.82 357.3 11.99 9.54N Path coordinates are referred to WGS84 (as used by GPS), with the nominal site altitude being referenced to Mean Sea Level. 75987 is triple: AB 7.2 13.5 35" 170.0 (STT 57) Graze path of B 76.31 km north, and 7.0 secs later compared to A AC 7.2 7.7 70" 33.9 (STT 57) Graze path of C 121.32 km south, and 80.3 secs later compared to A Librations Long -8.27 Lat -5.04 P +11.47 D +3.67 Illumination of moon 68%+ Elongation of Moon 112 Vertical Profile Scale 2.15 km/arcsec at mean distance of moon Horizontal Scale Factor 1.93 deg/min At longitude -92.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 4.3 4.4 5.8 6.5 7.0 7.2 7.4 7.5 6.3 5.2 6.6 7.3 7.8 8.1 8.3 8.4 8.3 5.2 6.6 7.4 7.8 8.1 8.3 8.4 10.3 5.3 6.7 7.4 7.8 8.1 8.3 8.4 12.3 5.3 6.7 7.4 7.8 8.1 8.3 8.5 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 03334+2322STT 57AB 1907 1907 1 170 170 35.0 35.0 7.17 13.5 A3 +007-026 +22 504 D 033323.73+232305.5 03334+2322STT 57AC 1854 2002 32 35 34 71.4 70.1 7.17 7.67 A3 +007-026 -012-026 D 033323.73+232205.5 03334+2322STT 57CD 1854 1974 12 319 321 10.0 9.8 7.67 11.4 G5 -012-026 +22 505 033323.73+232205.5 ------------------------------------------------ Interferometric catalogue entries 033323.73+232205.5 ADS 2605 STT 57A HD 21984 TYC 1798 00480 1 03334+2322 Date PA Sep M1 M2 1972.9643 V238.7 . 0.114 0.001 . . 1.7 0.3 n 1 Dnh1973 Occ 1994.8702 . . < 0.038 . . . . . 549 22 3.6 1 Msn1996b Sch 033323.73+232205.5 ADS 2605 STT 57AC HD 21984 TYC 1798 00480 1 03334+2322 Date PA Sep M1 M2 1991.57 33.8 . 69.732 . 7.17 . 7.67 . 530 100 1.4 1 TYC2000b Tty 033324.17+232132.9 ADS 2605 STT 57B BD+22 504B . 03334+2322 Date PA Sep M1 M2 1972.9643 V238.7 . 0.069 0.002 . . 2.2 0.4 n 1 Dnh1973 Occ ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Brandon MB -100.0 49.9 3km 6 48 30 Des Moines IA -93.6 41.6 616km 6 53 2 Duluth MN -92.1 46.8 41km 6 54 1 Edmonton AB -113.5 53.5 20km 6 37 4 Grand Forks ND -97.0 47.9 101km 6 50 40 midwest grazes -94.1 44.5 341km 6 52 41 MidWest+2 -94.0 44.0 386km 6 52 47 MidWest+6 -95.0 45.0 322km 6 52 6 Regina SK -104.6 50.4 81km 6 44 48 Saskatoon SK -106.7 52.1 35km 6 43 5 Superior WI -92.1 46.7 47km 6 54 1 Winnipeg MB -97.1 49.9 91km 6 50 36