IOTA/IOTA-ES occultation update for (584) Semiramis / TYC 1779-00090-1 event on 2007 Aug 05, 01:05 UT Visible from Arabia, Africa Summary ------- On 2007 Aug 05 UT, the 54 km diameter asteroid (584) Semiramis will occult a 11.5 mag star in the constellation Triangulum for observers along a path across Arabia, Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.2 mag to 12.2 mag (the magnitude of the asteroid) for at most 2.5 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 93 * date and approx. time of event: 2007 Aug 05, 01:00 - 2007 Aug 05, 01:10 UT * midpoint of event [JD]: 2454317.54524167 * magnitude of target star: 11.5 * magnitude drop [mag]: 1.2 * estimated maximum duration [s]: 2.5 * Moon: 60 % sunlit, 17° distance * Sun: 88° distance * rough path description: Arabia, Africa The occultation path -------------------- * approximate projected width [km]: 55 * 1 sigma uncertainty interval [path widths]: +/- 0.48 * 1 sigma uncertainty interval [seconds]: +/- 1.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .038 +/- .020) * 1 sigma uncertainty ellipse (major, minor, PA): ( .038", .020", 86° ) * approx speed of asteroid's shadow [km/s]: 21.3534 * website for maps: http://lunar-occultations.com/iota/asteroids/astrndx.htm http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1779-00090-1 by 584 Semiramis on 2007 Aug 05 Centre Star Star Sun Path Limits Error Limits E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude - 12 0 0 -13 30 13 1 0 17 1 61 -86 -13 47 29 -13 12 56 -14 4 2 -12 56 19 - 11 0 0 -12 56 39 1 0 18 2 60 -85 -13 14 0 -12 39 17 -13 30 38 -12 22 35 - 10 0 0 -12 22 20 1 0 18 3 60 -84 -12 39 46 -12 4 53 -12 56 29 -11 48 6 - 9 0 0 -11 47 17 1 0 18 4 60 -83 -12 4 48 -11 29 44 -12 21 36 -11 12 52 - 8 0 0 -11 11 29 1 0 19 5 60 -82 -11 29 6 -10 53 51 -11 45 59 -10 36 53 - 7 0 0 -10 34 57 1 0 19 7 60 -81 -10 52 39 -10 17 13 -11 9 37 -10 0 11 - 6 0 0 - 9 57 41 1 0 20 8 59 -80 -10 15 28 - 9 39 52 -10 32 32 - 9 22 44 - 5 0 0 - 9 19 41 1 0 21 9 59 -79 - 9 37 34 - 9 1 47 - 9 54 42 - 8 44 34 - 4 0 0 - 8 40 59 1 0 22 10 59 -77 - 8 58 57 - 8 22 59 - 9 16 10 - 8 5 41 - 3 0 0 - 8 1 33 1 0 23 11 59 -76 - 8 19 37 - 7 43 28 - 8 36 55 - 7 26 5 - 2 0 0 - 7 21 25 1 0 24 12 59 -75 - 7 39 34 - 7 3 15 - 7 56 58 - 6 45 46 - 1 0 0 - 6 40 36 1 0 26 14 59 -74 - 6 58 50 - 6 22 20 - 7 16 19 - 6 4 46 0 0 0 - 5 59 6 1 0 27 15 59 -73 - 6 17 26 - 5 40 45 - 6 35 0 - 5 23 6 1 0 0 - 5 16 56 1 0 29 16 59 -71 - 5 35 21 - 4 58 29 - 5 53 0 - 4 40 45 2 0 0 - 4 34 6 1 0 31 17 59 -70 - 4 52 37 - 4 15 34 - 5 10 21 - 3 57 45 3 0 0 - 3 50 39 1 0 33 18 59 -69 - 4 9 14 - 3 32 1 - 4 27 3 - 3 14 7 4 0 0 - 3 6 34 1 0 35 20 59 -68 - 3 25 14 - 2 47 51 - 3 43 8 - 2 29 52 5 0 0 - 2 21 52 1 0 38 21 59 -66 - 2 40 38 - 2 3 5 - 2 58 37 - 1 45 1 6 0 0 - 1 36 36 1 0 40 22 59 -65 - 1 55 27 - 1 17 44 - 2 13 30 - 0 59 35 7 0 0 - 0 50 46 1 0 43 23 59 -64 - 1 9 42 - 0 31 49 - 1 27 50 - 0 13 35 8 0 0 - 0 4 24 1 0 46 25 59 -63 - 0 23 24 0 14 38 - 0 41 37 0 32 56 9 0 0 0 42 29 1 0 48 26 59 -61 0 23 24 1 1 36 0 5 7 1 19 59 10 0 0 1 29 51 1 0 51 27 59 -60 1 10 42 1 49 3 0 52 21 2 7 30 11 0 0 2 17 41 1 0 55 29 59 -59 1 58 28 2 36 57 1 40 2 2 55 28 12 0 0 3 5 57 1 0 58 30 59 -58 2 46 40 3 25 17 2 28 10 3 43 52 13 0 0 3 54 37 1 1 2 31 59 -56 3 35 15 4 14 1 3 16 42 4 32 40 14 0 0 4 43 39 1 1 5 32 59 -55 4 24 14 5 3 7 4 5 37 5 21 50 15 0 0 5 33 2 1 1 9 34 60 -54 5 13 32 5 52 33 4 54 52 6 11 19 16 0 0 6 22 42 1 1 13 35 60 -52 6 3 9 6 42 16 5 44 25 7 1 6 17 0 0 7 12 38 1 1 17 36 60 -51 6 53 2 7 32 16 6 34 16 7 51 9 18 0 0 8 2 48 1 1 21 38 60 -50 7 43 10 8 22 29 7 24 20 8 41 25 19 0 0 8 53 10 1 1 26 39 61 -48 8 33 29 9 12 53 8 14 36 9 31 52 20 0 0 9 43 41 1 1 30 40 61 -47 9 23 57 10 3 27 9 5 3 10 22 27 21 0 0 10 34 19 1 1 35 41 61 -46 10 14 33 10 54 7 9 55 36 11 13 10 22 0 0 11 25 1 1 1 39 43 62 -45 11 5 14 11 44 51 10 46 15 12 3 56 23 0 0 12 15 46 1 1 44 44 62 -43 11 55 57 12 35 38 11 36 57 12 54 44 24 0 0 13 6 31 1 1 49 45 63 -42 12 46 40 13 26 23 12 27 38 13 45 31 25 0 0 13 57 12 1 1 54 47 63 -41 13 37 20 14 17 6 13 18 18 14 36 15 26 0 0 14 47 49 1 1 59 48 64 -39 14 27 56 15 7 44 14 8 53 15 26 53 27 0 0 15 38 18 1 2 4 49 65 -38 15 18 25 15 58 14 14 59 22 16 17 23 28 0 0 16 28 38 1 2 9 50 65 -37 16 8 45 16 48 33 15 49 41 17 7 43 29 0 0 17 18 45 1 2 15 51 66 -35 16 58 52 17 38 40 16 39 48 17 57 50 30 0 0 18 8 38 1 2 20 53 67 -34 17 48 45 18 28 33 17 29 42 18 47 42 31 0 0 18 58 14 1 2 26 54 68 -33 18 38 22 19 18 8 18 19 19 19 37 16 32 0 0 19 47 31 1 2 31 55 69 -32 19 27 40 20 7 24 19 8 38 20 26 31 33 0 0 20 36 27 1 2 37 56 70 -30 20 16 37 20 56 19 19 57 37 21 15 24 34 0 0 21 25 0 1 2 42 57 71 -29 21 5 11 21 44 50 20 46 13 22 3 54 35 0 0 22 13 7 1 2 48 59 72 -28 21 53 21 22 32 55 21 34 24 22 51 58 36 0 0 23 0 47 1 2 54 60 73 -27 22 41 3 23 20 33 22 22 9 23 39 34 37 0 0 23 47 59 1 2 59 61 74 -25 23 28 17 24 7 42 23 9 25 24 26 41 38 0 0 24 34 40 1 3 5 62 75 -24 24 15 1 24 54 21 23 56 11 25 13 16 39 0 0 25 20 48 1 3 11 63 77 -23 25 1 12 25 40 26 24 42 25 25 59 19 40 0 0 26 6 23 1 3 16 64 78 -22 25 46 50 26 25 57 25 28 6 26 44 47 41 0 0 26 51 22 1 3 22 65 80 -21 26 31 53 27 10 53 26 13 12 27 29 40 42 0 0 27 35 45 1 3 28 66 82 -20 27 16 19 27 55 12 26 57 42 28 13 55 43 0 0 28 19 30 1 3 33 67 84 -18 28 0 8 28 38 53 27 41 34 28 57 32 44 0 0 29 2 36 1 3 39 68 86 -17 28 43 18 29 21 55 28 24 48 29 40 30 45 0 0 29 45 1 1 3 45 69 88 -16 29 25 48 30 4 17 29 7 22 30 22 48 46 0 0 30 26 46 1 3 50 70 90 -15 30 7 37 30 45 57 29 49 16 31 4 24 47 0 0 31 7 50 1 3 56 71 93 -14 30 48 45 31 26 56 30 30 28 31 45 18 48 0 0 31 48 10 1 4 2 72 95 -13 31 29 10 32 7 12 31 10 58 32 25 30 49 0 0 32 27 48 1 4 7 72 98 -12 32 8 53 32 46 45 31 50 45 33 4 58 50 0 0 33 6 42 1 4 13 73 101 -11 32 47 52 33 25 34 32 29 49 33 43 42 51 0 0 33 44 52 1 4 18 74 105 -10 33 26 7 34 3 39 33 8 8 34 21 42 52 0 0 34 22 18 1 4 24 74 108 -9 34 3 38 34 40 59 33 45 44 34 58 58 53 0 0 34 58 59 1 4 29 75 112 -8 34 40 24 35 17 35 34 22 35 35 35 28 54 0 0 35 34 55 1 4 34 75 116 -7 35 16 25 35 53 26 34 58 42 36 11 14 55 0 0 36 10 6 1 4 39 76 120 -6 35 51 42 36 28 31 35 34 3 36 46 14 56 0 0 36 44 32 1 4 45 76 125 -5 36 26 13 37 2 52 36 8 40 37 20 29 57 0 0 37 18 13 1 4 50 77 129 -4 36 59 59 37 36 27 36 42 32 37 53 59 58 0 0 37 51 8 1 4 55 77 134 -3 37 33 1 38 9 17 37 15 38 38 26 44 59 0 0 38 23 19 1 5 0 77 139 -2 38 5 17 38 41 23 37 48 0 38 58 44 60 0 0 38 54 46 1 5 5 77 144 -1 38 36 49 39 12 44 38 19 37 39 30 0 61 0 0 39 25 27 1 5 10 77 148 0 39 7 37 39 43 20 38 50 30 40 0 31 62 0 0 39 55 25 1 5 15 77 153 1 39 37 40 40 13 12 39 20 38 40 30 17 63 0 0 40 24 39 1 5 19 77 158 2 40 6 59 40 42 20 39 50 3 40 59 20 64 0 0 40 53 9 1 5 24 77 162 3 40 35 34 41 10 44 40 18 43 41 27 39 65 0 0 41 20 56 1 5 29 76 167 4 41 3 27 41 38 26 40 46 41 41 55 15 66 0 0 41 48 0 1 5 33 76 171 5 41 30 36 42 5 24 41 13 56 42 22 9 67 0 0 42 14 21 1 5 38 76 175 6 41 57 3 42 31 41 41 40 28 42 48 20 68 0 0 42 40 1 1 5 43 75 179 6 42 22 48 42 57 15 42 6 18 43 13 49 69 0 0 43 4 59 1 5 47 75 182 7 42 47 52 43 22 8 42 31 26 43 38 37 70 0 0 43 29 16 1 5 51 75 186 8 43 12 14 43 46 20 42 55 54 44 2 44 71 0 0 43 52 53 1 5 56 74 189 9 43 35 56 44 9 51 43 19 40 44 26 10 72 0 0 44 15 49 1 6 0 74 192 10 43 58 57 44 32 43 43 42 47 44 48 57 73 0 0 44 38 7 1 6 4 73 195 10 44 21 19 44 54 55 44 5 14 45 11 4 74 0 0 44 59 45 1 6 8 72 197 11 44 43 2 45 16 28 44 27 1 45 32 32 75 0 0 45 20 44 1 6 12 72 200 12 45 4 7 45 37 23 44 48 10 45 53 22 76 0 0 45 41 6 1 6 16 71 202 13 45 24 33 45 57 39 45 8 41 46 13 35 77 0 0 46 0 50 1 6 20 71 205 14 45 44 22 46 17 19 45 28 34 46 33 10 78 0 0 46 19 57 1 6 24 70 207 14 46 3 33 46 36 21 45 47 50 46 52 8 79 0 0 46 38 27 1 6 28 70 209 15 46 22 8 46 54 48 46 6 29 47 10 30 80 0 0 46 56 22 1 6 32 69 211 16 46 40 7 47 12 38 46 24 33 47 28 16 81 0 0 47 13 41 1 6 35 68 213 17 46 57 31 47 29 53 46 42 0 47 45 27 82 0 0 47 30 26 1 6 39 68 215 17 47 14 19 47 46 33 46 58 52 48 2 3 83 0 0 47 46 35 1 6 43 67 216 18 47 30 33 48 2 39 47 15 10 48 18 5 84 0 0 48 2 11 1 6 46 67 218 19 47 46 13 48 18 11 47 30 54 48 33 33 85 0 0 48 17 14 1 6 50 66 220 19 48 1 19 48 33 9 47 46 3 48 48 28 86 0 0 48 31 43 1 6 53 65 221 20 48 15 52 48 47 35 48 0 40 49 2 50 87 0 0 48 45 39 1 6 57 65 223 21 48 29 52 49 1 28 48 14 43 49 16 39 88 0 0 48 59 4 1 7 0 64 224 21 48 43 20 49 14 49 48 28 15 49 29 57 89 0 0 49 11 56 1 7 4 63 226 22 48 56 16 49 27 38 48 41 14 49 42 43 90 0 0 49 24 18 1 7 7 63 227 23 49 8 40 49 39 56 48 53 42 49 54 58 91 0 0 49 36 8 1 7 10 62 228 23 49 20 34 49 51 43 49 5 38 50 6 42 92 0 0 49 47 28 1 7 13 62 230 24 49 31 57 50 3 0 49 17 4 50 17 56 93 0 0 49 58 18 1 7 17 61 231 25 49 42 49 50 13 47 49 27 59 50 28 40 94 0 0 50 8 37 1 7 20 60 232 25 49 53 12 50 24 4 49 38 24 50 38 54 95 0 0 50 18 27 1 7 23 60 233 26 50 3 5 50 33 51 49 48 19 50 48 39 96 0 0 50 27 49 1 7 26 59 235 27 50 12 28 50 43 10 49 57 45 50 57 55 97 0 0 50 36 41 1 7 29 59 236 27 50 21 23 50 52 0 50 6 42 51 6 43 98 0 0 50 45 4 1 7 32 58 237 28 50 29 49 51 0 21 50 15 10 51 15 2 99 0 0 50 53 0 1 7 35 57 238 28 50 37 46 51 8 14 50 23 10 51 22 53 100 0 0 51 0 27 1 7 38 57 239 29 50 45 16 51 15 40 50 30 41 51 30 17 101 0 0 51 7 27 1 7 41 56 240 30 50 52 17 51 22 37 50 37 45 51 37 12 102 0 0 51 13 59 1 7 44 56 241 30 50 58 51 51 29 8 50 44 20 51 43 41 103 0 0 51 20 4 1 7 46 55 243 31 51 4 58 51 35 11 50 50 28 51 49 43 104 0 0 51 25 42 1 7 49 54 244 31 51 10 37 51 40 47 50 56 9 51 55 17 105 0 0 51 30 53 1 7 52 54 245 32 51 15 49 51 45 57 51 1 23 52 0 25 106 0 0 51 35 37 1 7 55 53 246 33 51 20 35 51 50 40 51 6 10 52 5 7 107 0 0 51 39 55 1 7 57 53 247 33 51 24 54 51 54 56 51 10 30 52 9 23 108 0 0 51 43 46 1 8 0 52 248 34 51 28 46 51 58 47 51 14 23 52 13 12 109 0 0 51 47 11 1 8 3 51 249 34 51 32 12 52 2 11 51 17 50 52 16 35 110 0 0 51 50 10 1 8 5 51 250 35 51 35 12 52 5 9 51 20 51 52 19 33 111 0 0 51 52 43 1 8 8 50 251 36 51 37 46 52 7 41 51 23 25 52 22 4 112 0 0 51 54 51 1 8 10 49 252 36 51 39 54 52 9 48 51 25 34 52 24 10 113 0 0 51 56 32 1 8 13 49 253 37 51 41 36 52 11 29 51 27 16 52 25 51 114 0 0 51 57 48 1 8 15 48 254 37 51 42 52 52 12 44 51 28 32 52 27 6 115 0 0 51 58 37 1 8 18 48 255 38 51 43 42 52 13 34 51 29 23 52 27 55 116 0 0 51 59 2 1 8 20 47 256 38 51 44 6 52 13 58 51 29 47 52 28 20 117 0 0 51 59 0 1 8 23 46 257 39 51 44 5 52 13 57 51 29 46 52 28 18 118 0 0 51 58 33 1 8 25 46 258 40 51 43 38 52 13 30 51 29 19 52 27 52 119 0 0 51 57 41 1 8 28 45 259 40 51 42 45 52 12 38 51 28 25 52 26 59 120 0 0 51 56 23 1 8 30 45 259 41 51 41 26 52 11 20 51 27 6 52 25 42 121 0 0 51 54 39 1 8 32 44 260 41 51 39 42 52 9 36 51 25 21 52 23 59 122 0 0 51 52 29 1 8 35 43 261 42 51 37 31 52 7 27 51 23 10 52 21 50 123 0 0 51 49 53 1 8 37 43 262 42 51 34 55 52 4 52 51 20 33 52 19 16 124 0 0 51 46 52 1 8 39 42 263 43 51 31 53 52 1 52 51 17 30 52 16 17 125 0 0 51 43 24 1 8 41 42 264 44 51 28 24 51 58 25 51 14 1 52 12 51 126 0 0 51 39 31 1 8 44 41 265 44 51 24 30 51 54 33 51 10 5 52 9 0 127 0 0 51 35 11 1 8 46 40 266 45 51 20 9 51 50 14 51 5 43 52 4 42 128 0 0 51 30 25 1 8 48 40 267 45 51 15 21 51 45 30 51 0 54 51 59 59 129 0 0 51 25 12 1 8 50 39 268 46 51 10 7 51 40 19 50 55 39 51 54 49 130 0 0 51 19 33 1 8 52 38 268 46 51 4 26 51 34 41 50 49 56 51 49 13 131 0 0 51 13 27 1 8 55 38 269 47 50 58 18 51 28 36 50 43 47 51 43 10 132 0 0 51 6 54 1 8 57 37 270 47 50 51 43 51 22 5 50 37 10 51 36 41 133 0 0 50 59 53 1 8 59 37 271 48 50 44 41 51 15 7 50 30 6 51 29 44 134 0 0 50 52 25 1 9 1 36 272 49 50 37 11 51 7 41 50 22 34 51 22 20 135 0 0 50 44 30 1 9 3 35 273 49 50 29 13 50 59 47 50 14 34 51 14 29 136 0 0 50 36 6 1 9 5 35 274 50 50 20 47 50 51 26 50 6 6 51 6 10 137 0 0 50 27 15 1 9 7 34 274 50 50 11 53 50 42 37 49 57 10 50 57 23 138 0 0 50 17 54 1 9 9 33 275 51 50 2 31 50 33 19 49 47 45 50 48 8 139 0 0 50 8 5 1 9 11 33 276 51 49 52 39 50 23 33 49 37 50 50 38 24 140 0 0 49 57 47 1 9 13 32 277 52 49 42 18 50 13 17 49 27 27 50 28 11 141 0 0 49 47 0 1 9 15 31 278 52 49 31 28 50 2 33 49 16 34 50 17 29 142 0 0 49 35 43 1 9 16 31 279 53 49 20 8 49 51 18 49 5 11 50 6 18 143 0 0 49 23 55 1 9 18 30 279 53 49 8 17 49 39 34 48 53 18 49 54 37 144 0 0 49 11 38 1 9 20 29 280 54 48 55 56 49 27 20 48 40 54 49 42 25 145 0 0 48 58 49 1 9 22 29 281 55 48 43 5 49 14 35 48 27 59 49 29 43 146 0 0 48 45 30 1 9 24 28 282 55 48 29 42 49 1 19 48 14 33 49 16 31 147 0 0 48 31 39 1 9 25 27 283 56 48 15 47 48 47 31 48 0 35 49 2 46 148 0 0 48 17 16 1 9 27 27 283 56 48 1 21 48 33 12 47 46 5 48 48 31 149 0 0 48 2 20 1 9 29 26 284 57 47 46 22 48 18 20 47 31 2 48 33 43 150 0 0 47 46 52 1 9 31 25 285 57 47 30 50 48 2 56 47 15 27 48 18 22 151 0 0 47 30 51 1 9 32 24 286 58 47 14 45 47 46 59 46 59 18 48 2 29 152 0 0 47 14 17 1 9 34 24 287 58 46 58 6 47 30 28 46 42 35 47 46 2 153 0 0 46 57 8 1 9 35 23 287 59 46 40 53 47 13 24 46 25 19 47 29 2 154 0 0 46 39 25 1 9 37 22 288 59 46 23 6 46 55 45 46 7 27 47 11 27 155 0 0 46 21 7 1 9 38 21 289 60 46 4 44 46 37 31 45 49 1 46 53 17 156 0 0 46 2 14 1 9 40 21 290 60 45 45 46 46 18 42 45 29 59 46 34 33 157 0 0 45 42 45 1 9 41 20 290 61 45 26 13 45 59 18 45 10 21 46 15 13 158 0 0 45 22 40 1 9 43 19 291 61 45 6 3 45 39 17 44 50 7 45 55 16 159 0 0 45 1 58 1 9 44 18 292 62 44 45 16 45 18 40 44 29 16 45 34 44 160 0 0 44 40 39 1 9 45 18 293 62 44 23 53 44 57 26 44 7 48 45 13 34 161 0 0 44 18 42 1 9 47 17 293 63 44 1 52 44 35 34 43 45 43 44 51 47 162 0 0 43 56 8 1 9 48 16 294 63 43 39 12 44 13 5 43 22 59 44 29 22 163 0 0 43 32 55 1 9 49 15 295 64 43 15 55 43 49 57 42 59 36 44 6 19 164 0 0 43 9 4 1 9 50 14 295 64 42 51 58 43 26 10 42 35 35 43 42 37 165 0 0 42 44 33 1 9 51 13 296 64 42 27 23 43 1 45 42 10 55 43 18 16 166 0 0 42 19 23 1 9 52 13 297 65 42 2 7 42 36 39 41 45 35 42 53 16 167 0 0 41 53 32 1 9 53 12 297 65 41 36 12 42 10 54 41 19 34 42 27 36 168 0 0 41 27 2 1 9 54 11 298 65 41 9 36 41 44 29 40 52 54 42 1 15 169 0 0 40 59 51 1 9 55 10 299 66 40 42 20 41 17 23 40 25 33 41 34 14 170 0 0 40 31 59 1 9 56 9 299 66 40 14 23 40 49 36 39 57 31 41 6 32 171 0 0 40 3 25 1 9 57 8 300 66 39 45 44 40 21 8 39 28 47 40 38 9 172 0 0 39 34 11 1 9 57 7 301 67 39 16 24 39 51 58 38 59 22 40 9 4 173 0 0 39 4 14 1 9 58 6 301 67 38 46 23 39 22 7 38 29 16 39 39 18 174 0 0 38 33 36 1 9 58 5 302 67 38 15 40 38 51 34 37 58 28 39 8 50 175 0 0 38 2 16 1 9 59 4 303 67 37 44 14 38 20 18 37 26 57 38 37 40 176 0 0 37 30 13 1 9 59 4 303 67 37 12 7 37 48 21 36 54 45 38 5 47 177 0 0 36 57 29 1 10 0 3 304 67 36 39 17 37 15 42 36 21 51 37 33 13 178 0 0 36 24 2 1 10 0 2 304 67 36 5 46 36 42 20 35 48 15 36 59 56 179 0 0 35 49 54 1 10 0 1 305 67 35 31 32 36 8 17 35 13 57 36 25 57 Data for the target star ------------------------ * name: TYC 1779-00090-1 * constellation : Triangulum * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 02 31 27.2730 DE: +28 10 39.469 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .029, .016 ) * V mag [mag]: 11.5 * B mag [mag]: 12.6 * Apparent position with proper motion RA(deg): 37.9761667907 DE(deg): 28.2118274396 * Equation of equinoxes (radians) : 0.000032029712918 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (584) Semiramis approx. diameter [km]: 54 approx. diameter ["]: .048 distance from Earth [AU]: 1.55400 * orbital information: orbit source: Preston date of fit: 2007 Jul 01 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 573 number of rejected observations: 74 time covered by the observations: 1906 Jan 15 - 2007 May 30 1 sigma uncertainty ellipse (major, minor, PA): 0.025, 0.011, 80° remarks: * orbital elements for (584) Semiramis : Mean anomaly = 1.74957448 deg Arg. of pericenter = 84.86318021 deg Long. of node = 282.29828361 deg Inclination = 10.72758395 deg Eccentricity = 0.23296213 Semimajor axis = 2.37375068 AU Perihelion dist = 1.82075666 AU Mag: H = 8.49, G = 0.24 Epoch of elements : MJD 54317.04500000 TDT (2007 Aug 05.045) ------ occelmnt file for Occult BEGIN ----------------------------------- 2007 Aug 05 584 Semiramis 1h 5.1m UT 11.5 2 31 27.273 28 10 39.47TYC 1779-00090-1 12.6 12.2 54 2.5 1.554 4.540 32.39 -291.635 28.169 -194.76 17.12 1.0858 -.10340 .19256 10.60725 5.72263 -0.00459 -0.00151 2000 359.8509782007 729.00000 84.863180282.298284 10.7275840.232962132.373750681.820756668.715 0.24 RATE 2.6949550 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 Meas 0.038 0.020 85.8 1.480 0.023 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2007 Jul 09, 20:34 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org