Grazing Occultation of 75988SG5 Magnitude 7.6 [Red = 7.0] Date: 2010 Jan 25 6h 42m, to 2010 Jan 25 7h 4m 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 51 43 9 6 42 9 36 262 1.36 354.1 8.73 6.27N -110 45 0 51 39 40 6 42 22 36 263 1.37 354.1 8.77 6.31N -110 30 0 51 36 10 6 42 35 36 263 1.38 354.2 8.80 6.34N -110 15 0 51 32 37 6 42 49 36 263 1.39 354.2 8.84 6.38N -110 0 0 51 29 3 6 43 2 36 264 1.40 354.2 8.87 6.41N -109 45 0 51 25 27 6 43 16 35 264 1.41 354.3 8.91 6.45N -109 30 0 51 21 49 6 43 29 35 264 1.42 354.3 8.94 6.48N -109 15 0 51 18 9 6 43 42 35 264 1.43 354.3 8.98 6.52N -109 0 0 51 14 27 6 43 55 35 265 1.44 354.4 9.01 6.55N -108 45 0 51 10 43 6 44 9 35 265 1.45 354.4 9.05 6.59N -108 30 0 51 6 58 6 44 22 34 265 1.46 354.4 9.08 6.62N -108 15 0 51 3 11 6 44 35 34 266 1.47 354.5 9.11 6.66N -108 0 0 50 59 21 6 44 48 34 266 1.48 354.5 9.15 6.69N -107 45 0 50 55 30 6 45 1 34 266 1.49 354.5 9.18 6.72N -107 30 0 50 51 38 6 45 14 34 267 1.50 354.6 9.22 6.76N -107 15 0 50 47 43 6 45 27 33 267 1.51 354.6 9.25 6.79N -107 0 0 50 43 46 6 45 40 33 267 1.52 354.6 9.28 6.83N -106 45 0 50 39 48 6 45 53 33 267 1.53 354.7 9.32 6.86N -106 30 0 50 35 48 6 46 5 33 268 1.54 354.7 9.35 6.89N -106 15 0 50 31 46 6 46 18 33 268 1.56 354.7 9.38 6.93N -106 0 0 50 27 42 6 46 31 33 268 1.57 354.8 9.42 6.96N -105 45 0 50 23 36 6 46 43 32 268 1.58 354.8 9.45 6.99N -105 30 0 50 19 29 6 46 56 32 269 1.59 354.8 9.48 7.02N -105 15 0 50 15 19 6 47 9 32 269 1.60 354.9 9.51 7.06N -105 0 0 50 11 8 6 47 21 32 269 1.61 354.9 9.55 7.09N -104 45 0 50 6 55 6 47 34 32 270 1.63 354.9 9.58 7.12N -104 30 0 50 2 41 6 47 46 31 270 1.64 355.0 9.61 7.15N -104 15 0 49 58 24 6 47 58 31 270 1.65 355.0 9.64 7.19N -104 0 0 49 54 6 6 48 11 31 270 1.66 355.0 9.67 7.22N -103 45 0 49 49 45 6 48 23 31 271 1.68 355.1 9.70 7.25N -103 30 0 49 45 24 6 48 35 31 271 1.69 355.1 9.74 7.28N -103 15 0 49 41 0 6 48 48 30 271 1.70 355.1 9.77 7.31N -103 0 0 49 36 34 6 49 0 30 271 1.72 355.2 9.80 7.34N -102 45 0 49 32 7 6 49 12 30 272 1.73 355.2 9.83 7.37N -102 30 0 49 27 38 6 49 24 30 272 1.74 355.2 9.86 7.40N -102 15 0 49 23 7 6 49 36 30 272 1.76 355.2 9.89 7.43N -102 0 0 49 18 34 6 49 48 29 273 1.77 355.3 9.92 7.46N -101 45 0 49 14 0 6 50 0 29 273 1.79 355.3 9.95 7.49N -101 30 0 49 9 24 6 50 11 29 273 1.80 355.3 9.98 7.52N -101 15 0 49 4 46 6 50 23 29 273 1.82 355.4 10.01 7.55N -101 0 0 49 0 6 6 50 35 29 274 1.83 355.4 10.04 7.58N -100 45 0 48 55 25 6 50 47 28 274 1.85 355.4 10.07 7.61N -100 30 0 48 50 41 6 50 58 28 274 1.86 355.5 10.10 7.64N -100 15 0 48 45 57 6 51 10 28 274 1.88 355.5 10.13 7.67N -100 0 0 48 41 10 6 51 21 28 275 1.90 355.5 10.16 7.70N - 99 45 0 48 36 22 6 51 33 28 275 1.91 355.5 10.19 7.73N - 99 30 0 48 31 31 6 51 44 27 275 1.93 355.6 10.22 7.76N - 99 15 0 48 26 40 6 51 55 27 275 1.95 355.6 10.24 7.79N - 99 0 0 48 21 46 6 52 6 27 276 1.96 355.6 10.27 7.82N - 98 45 0 48 16 51 6 52 18 27 276 1.98 355.7 10.30 7.84N - 98 30 0 48 11 54 6 52 29 27 276 2.00 355.7 10.33 7.87N - 98 15 0 48 6 55 6 52 40 26 276 2.02 355.7 10.36 7.90N - 98 0 0 48 1 55 6 52 51 26 277 2.03 355.7 10.38 7.93N - 97 45 0 47 56 53 6 53 2 26 277 2.05 355.8 10.41 7.96N - 97 30 0 47 51 50 6 53 13 26 277 2.07 355.8 10.44 7.98N - 97 15 0 47 46 44 6 53 23 26 277 2.09 355.8 10.47 8.01N - 97 0 0 47 41 38 6 53 34 25 278 2.11 355.8 10.49 8.04N - 96 45 0 47 36 29 6 53 45 25 278 2.13 355.9 10.52 8.06N - 96 30 0 47 31 19 6 53 55 25 278 2.15 355.9 10.55 8.09N - 96 15 0 47 26 7 6 54 6 25 278 2.17 355.9 10.57 8.12N - 96 0 0 47 20 54 6 54 16 25 279 2.19 356.0 10.60 8.14N - 95 45 0 47 15 39 6 54 27 24 279 2.21 356.0 10.62 8.17N - 95 30 0 47 10 22 6 54 37 24 279 2.24 356.0 10.65 8.19N - 95 15 0 47 5 4 6 54 47 24 279 2.26 356.0 10.68 8.22N - 95 0 0 46 59 44 6 54 58 24 280 2.28 356.1 10.70 8.25N - 94 45 0 46 54 23 6 55 8 23 280 2.30 356.1 10.73 8.27N - 94 30 0 46 49 0 6 55 18 23 280 2.33 356.1 10.75 8.30N - 94 15 0 46 43 35 6 55 28 23 280 2.35 356.1 10.78 8.32N - 94 0 0 46 38 9 6 55 38 23 281 2.38 356.2 10.80 8.34N - 93 45 0 46 32 42 6 55 48 23 281 2.40 356.2 10.83 8.37N - 93 30 0 46 27 12 6 55 57 22 281 2.43 356.2 10.85 8.39N - 93 15 0 46 21 42 6 56 7 22 281 2.45 356.2 10.87 8.42N - 93 0 0 46 16 10 6 56 17 22 281 2.48 356.2 10.90 8.44N - 92 45 0 46 10 36 6 56 26 22 282 2.51 356.3 10.92 8.47N - 92 30 0 46 5 1 6 56 36 22 282 2.53 356.3 10.94 8.49N - 92 15 0 45 59 24 6 56 45 21 282 2.56 356.3 10.97 8.51N - 92 0 0 45 53 46 6 56 54 21 282 2.59 356.3 10.99 8.53N - 91 45 0 45 48 7 6 57 3 21 283 2.62 356.4 11.01 8.56N - 91 30 0 45 42 26 6 57 13 21 283 2.65 356.4 11.03 8.58N - 91 15 0 45 36 44 6 57 22 20 283 2.68 356.4 11.06 8.60N - 91 0 0 45 31 0 6 57 31 20 283 2.71 356.4 11.08 8.62N - 90 45 0 45 25 15 6 57 39 20 283 2.75 356.5 11.10 8.65N - 90 30 0 45 19 28 6 57 48 20 284 2.78 356.5 11.12 8.67N - 90 15 0 45 13 40 6 57 57 20 284 2.81 356.5 11.14 8.69N - 90 0 0 45 7 51 6 58 6 19 284 2.85 356.5 11.17 8.71N - 89 45 0 45 2 0 6 58 14 19 284 2.88 356.5 11.19 8.73N - 89 30 0 44 56 8 6 58 23 19 285 2.92 356.6 11.21 8.75N - 89 15 0 44 50 15 6 58 31 19 285 2.96 356.6 11.23 8.77N - 89 0 0 44 44 20 6 58 39 18 285 2.99 356.6 11.25 8.79N - 88 45 0 44 38 24 6 58 48 18 285 3.03 356.6 11.27 8.81N - 88 30 0 44 32 27 6 58 56 18 285 3.07 356.6 11.29 8.83N - 88 15 0 44 26 28 6 59 4 18 286 3.11 356.7 11.31 8.85N - 88 0 0 44 20 28 6 59 12 18 286 3.16 356.7 11.33 8.87N - 87 45 0 44 14 27 6 59 20 17 286 3.20 356.7 11.35 8.89N - 87 30 0 44 8 25 6 59 27 17 286 3.24 356.7 11.37 8.91N - 87 15 0 44 2 21 6 59 35 17 286 3.29 356.7 11.39 8.93N - 87 0 0 43 56 17 6 59 43 17 287 3.34 356.8 11.41 8.95N - 86 45 0 43 50 10 6 59 50 16 287 3.38 356.8 11.43 8.97N - 86 30 0 43 44 3 6 59 58 16 287 3.43 356.8 11.44 8.99N - 86 15 0 43 37 55 7 0 5 16 287 3.48 356.8 11.46 9.01N - 86 0 0 43 31 45 7 0 12 16 287 3.54 356.8 11.48 9.02N - 85 45 0 43 25 35 7 0 19 16 288 3.59 356.8 11.50 9.04N - 85 30 0 43 19 23 7 0 26 15 288 3.64 356.9 11.52 9.06N - 85 15 0 43 13 10 7 0 33 15 288 3.70 356.9 11.53 9.08N - 85 0 0 43 6 56 7 0 40 15 288 3.76 356.9 11.55 9.10N - 84 45 0 43 0 41 7 0 47 15 288 3.82 356.9 11.57 9.11N - 84 30 0 42 54 25 7 0 54 14 289 3.88 356.9 11.58 9.13N - 84 15 0 42 48 8 7 1 0 14 289 3.95 357.0 11.60 9.15N - 84 0 0 42 41 49 7 1 7 14 289 4.01 357.0 11.62 9.16N - 83 45 0 42 35 30 7 1 13 14 289 4.08 357.0 11.63 9.18N - 83 30 0 42 29 10 7 1 19 14 289 4.15 357.0 11.65 9.19N - 83 15 0 42 22 48 7 1 26 13 290 4.23 357.0 11.66 9.21N - 83 0 0 42 16 26 7 1 32 13 290 4.30 357.0 11.68 9.22N - 82 45 0 42 10 3 7 1 38 13 290 4.38 357.0 11.70 9.24N - 82 30 0 42 3 39 7 1 44 13 290 4.47 357.1 11.71 9.26N - 82 15 0 41 57 13 7 1 49 12 290 4.55 357.1 11.73 9.27N - 82 0 0 41 50 47 7 1 55 12 291 4.64 357.1 11.74 9.28N - 81 45 0 41 44 20 7 2 1 12 291 4.73 357.1 11.75 9.30N - 81 30 0 41 37 53 7 2 6 12 291 4.83 357.1 11.77 9.31N - 81 15 0 41 31 24 7 2 11 11 291 4.92 357.1 11.78 9.33N - 81 0 0 41 24 54 7 2 17 11 291 5.03 357.1 11.80 9.34N - 80 45 0 41 18 24 7 2 22 11 292 5.14 357.2 11.81 9.35N - 80 30 0 41 11 52 7 2 27 11 292 5.25 357.2 11.82 9.37N - 80 15 0 41 5 20 7 2 32 11 292 5.36 357.2 11.84 9.38N - 80 0 0 40 58 48 7 2 37 10 292 5.49 357.2 11.85 9.39N - 79 45 0 40 52 14 7 2 42 10 292 5.61 357.2 11.86 9.41N - 79 30 0 40 45 39 7 2 46 10 292 5.75 357.2 11.87 9.42N - 79 15 0 40 39 4 7 2 51 10 293 5.89 357.2 11.89 9.43N - 79 0 0 40 32 28 7 2 55 9 293 6.04 357.2 11.90 9.44N - 78 45 0 40 25 52 7 3 0 9 293 6.19 357.3 11.91 9.46N - 78 30 0 40 19 14 7 3 4 9 293 6.35 357.3 11.92 9.47N - 78 15 0 40 12 36 7 3 8 9 293 6.52 357.3 11.93 9.48N - 78 0 0 40 5 58 7 3 12 8 293 6.70 357.3 11.95 9.49N - 77 45 0 39 59 18 7 3 16 8 294 6.90 357.3 11.96 9.50N - 77 30 0 39 52 39 7 3 20 8 294 7.10 357.3 11.97 9.51N - 77 15 0 39 45 58 7 3 23 8 294 7.31 357.3 11.98 9.52N - 77 0 0 39 39 17 7 3 27 8 294 7.54 357.3 11.99 9.53N - 76 45 0 39 32 35 7 3 30 7 294 7.78 357.3 12.00 9.54N - 76 30 0 39 25 53 7 3 34 7 295 8.04 357.4 12.01 9.55N - 76 15 0 39 19 10 7 3 37 7 295 8.31 357.4 12.02 9.56N - 76 0 0 39 12 26 7 3 40 7 295 8.60 357.4 12.03 9.57N - 75 45 0 39 5 42 7 3 43 6 295 8.92 357.4 12.04 9.58N - 75 30 0 38 58 58 7 3 46 6 295 9.26 357.4 12.05 9.59N - 75 15 0 38 52 13 7 3 49 6 295 9.62 357.4 12.05 9.60N - 75 0 0 38 45 28 7 3 52 6 296 10.02 357.4 12.06 9.61N - 74 45 0 38 38 42 7 3 54 5 296 10.45 357.4 12.07 9.62N - 74 30 0 38 31 55 7 3 57 5 296 10.91 357.4 12.08 9.63N - 74 15 0 38 25 9 7 3 59 5 296 11.42 357.4 12.09 9.63N - 74 0 0 38 18 21 7 4 1 5 296 11.98 357.4 12.10 9.64N - 73 45 0 38 11 34 7 4 4 5 296 12.60 357.5 12.10 9.65N - 73 30 0 38 4 46 7 4 6 4 296 13.29 357.5 12.11 9.66N - 73 15 0 37 57 58 7 4 8 4 297 14.05 357.5 12.12 9.66N - 73 0 0 37 51 9 7 4 9 4 297 14.90 357.5 12.13 9.67N 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 1 meters 75988 is triple: CD 7.7 11.4 9.7" 321.6 (STT 57) Graze path of D 17.39 km south, and 10.4 secs earlier compared to C CA 7.7 7.2 70" 213.9 (STT 57) Graze path of A 120.52 km north, and 79.8 secs earlier compared to C Librations Long -8.29 Lat -5.06 P +11.67 D +3.64 Illumination of moon 68%+ Elongation of Moon 112 Vertical Profile Scale 2.13 km/arcsec at mean distance of moon Horizontal Scale Factor 1.94 deg/min At longitude -92.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 4.5 4.4 5.8 6.5 6.9 7.2 7.4 7.5 6.5 5.2 6.6 7.3 7.7 8.0 8.2 8.3 8.5 5.2 6.6 7.3 7.8 8.0 8.2 8.4 10.5 5.2 6.6 7.4 7.8 8.1 8.3 8.4 12.5 5.2 6.6 7.4 7.8 8.1 8.3 8.4 ------------------------------------------------------------------------------ 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 Des Moines IA -93.6 41.6 489km 6 55 52 Hilo HI -155.1 19.7 35km 5 31 26 midwest grazes -94.1 44.5 216km 6 55 32 MidWest+2 -94.0 44.0 261km 6 55 37 MidWest+6 -95.0 45.0 198km 6 54 57 Minot ND -101.3 48.2 86km 6 50 21 Moose Jaw SK -105.5 50.4 6km 6 46 54 Regina SK -104.6 50.4 37km 6 47 40