IOTA/IOTA-ES occultation update for (584) Semiramis / TYC 1347-00268-1 event on 2023 Apr 01, 11:58 UT Visible from China Summary ------- On 2023 Apr 01 UT, the 53.8 km diameter asteroid (584) Semiramis will occult a 12.1 mag star in the constellation Gemini for observers along a path across China. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.65 mag to 13.48 mag (the magnitude of the asteroid) for at most 4.740 seconds. This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center. This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The event at a glimpse ---------------------- * Rank: 100 * date and approx. time of event: 2023 Apr 01, 11:48 - 2023 Apr 01, 12:07 * geocentric midpoint of event [JD]: 2460035.99874671 * magnitude of target star: 12.10 * magnitude drop [mag]: 1.65 * estimated maximum duration [s]: 4.740 * Moon: 80 % sunlit, 30° distance * Sun: 100° distance * rough path description: China The occultation path -------------------- * approximate projected width [km]: 56 * 1 sigma uncertainty interval [path widths]: +/- 0.07 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.008, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.009", 0.002", 108°) * approx speed of asteroid's shadow [km/s]: 11.3448 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1347-00268-1 by 584 Semiramis on 2023 Apr 1 Centre Star Star Sun Path Limits Error Limits Alt E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude 9 0 0 23 58 23 11 49 10.1 1 74 70 23 42 33 24 14 14 23 40 27 24 16 20 .... 10 0 0 24 14 46 11 49 10.3 2 74 69 23 58 57 24 30 37 23 56 51 24 32 43 -0.27 11 0 0 24 30 59 11 49 10.7 3 74 69 24 15 11 24 46 49 24 13 5 24 48 55 -0.28 12 0 0 24 47 1 11 49 11.2 3 75 68 24 31 14 25 2 50 24 29 8 25 4 56 -0.28 13 0 0 25 2 52 11 49 11.9 4 75 68 24 47 5 25 18 40 24 45 0 25 20 46 -0.28 14 0 0 25 18 32 11 49 12.7 5 76 67 25 2 46 25 34 19 25 0 40 25 36 25 -0.28 15 0 0 25 33 59 11 49 13.7 6 76 66 25 18 14 25 49 46 25 16 9 25 51 52 -0.28 16 0 0 25 49 15 11 49 14.8 7 77 66 25 33 31 26 5 1 25 31 26 26 7 7 -0.28 17 0 0 26 4 19 11 49 16.1 8 77 65 25 48 36 26 20 4 25 46 30 26 22 9 -0.28 18 0 0 26 19 10 11 49 17.6 9 77 64 26 3 28 26 34 54 26 1 23 26 37 0 -0.28 19 0 0 26 33 49 11 49 19.2 10 78 64 26 18 7 26 49 32 26 16 3 26 51 38 -0.28 20 0 0 26 48 15 11 49 20.9 11 78 63 26 32 34 27 3 57 26 30 29 27 6 2 -0.28 21 0 0 27 2 28 11 49 22.8 12 79 62 26 46 48 27 18 9 26 44 43 27 20 14 -0.28 22 0 0 27 16 27 11 49 24.8 13 79 61 27 0 48 27 32 8 26 58 44 27 34 13 -0.28 23 0 0 27 30 13 11 49 27.0 14 80 61 27 14 35 27 45 53 27 12 31 27 47 58 -0.28 24 0 0 27 43 46 11 49 29.3 15 80 60 27 28 8 27 59 24 27 26 4 28 1 29 -0.28 25 0 0 27 57 4 11 49 31.8 16 81 59 27 41 28 28 12 42 27 39 24 28 14 46 -0.28 26 0 0 28 10 8 11 49 34.4 17 81 58 27 54 33 28 25 45 27 52 29 28 27 50 -0.28 27 0 0 28 22 58 11 49 37.1 17 82 57 28 7 24 28 38 34 28 5 20 28 40 38 -0.28 28 0 0 28 35 34 11 49 40.0 18 82 57 28 20 0 28 51 9 28 17 56 28 53 13 -0.28 29 0 0 28 47 55 11 49 43.0 19 83 56 28 32 22 29 3 29 28 30 18 29 5 33 -0.28 30 0 0 29 0 1 11 49 46.1 20 83 55 28 44 29 29 15 34 28 42 26 29 17 38 -0.28 31 0 0 29 11 52 11 49 49.4 21 84 54 28 56 21 29 27 24 28 54 18 29 29 28 -0.28 32 0 0 29 23 28 11 49 52.8 22 84 53 29 7 58 29 38 59 29 5 55 29 41 3 -0.28 33 0 0 29 34 49 11 49 56.3 23 85 53 29 19 20 29 50 19 29 17 17 29 52 23 -0.28 34 0 0 29 45 55 11 50 0.0 24 85 52 29 30 27 30 1 24 29 28 23 30 3 27 -0.28 35 0 0 29 56 45 11 50 3.7 25 86 51 29 41 18 30 12 13 29 39 15 30 14 16 -0.28 36 0 0 30 7 19 11 50 7.6 26 86 50 29 51 53 30 22 46 29 49 50 30 24 50 -0.28 37 0 0 30 17 38 11 50 11.6 26 87 49 30 2 12 30 33 4 30 0 10 30 35 7 -0.28 38 0 0 30 27 41 11 50 15.7 27 88 48 30 12 16 30 43 6 30 10 13 30 45 9 -0.28 39 0 0 30 37 27 11 50 20.0 28 88 48 30 22 4 30 52 52 30 20 1 30 54 55 -0.28 40 0 0 30 46 58 11 50 24.3 29 89 47 30 31 35 31 2 22 30 29 33 31 4 25 -0.28 41 0 0 30 56 13 11 50 28.8 30 89 46 30 40 51 31 11 36 30 38 49 31 13 38 -0.28 42 0 0 31 5 11 11 50 33.4 31 90 45 30 49 50 31 20 33 30 47 48 31 22 36 -0.28 43 0 0 31 13 53 11 50 38.1 32 91 44 30 58 33 31 29 14 30 56 31 31 31 17 -0.28 44 0 0 31 22 19 11 50 42.9 33 91 43 31 6 59 31 37 39 31 4 57 31 39 41 -0.28 45 0 0 31 30 28 11 50 47.8 33 92 43 31 15 9 31 45 47 31 13 7 31 47 50 -0.28 46 0 0 31 38 20 11 50 52.8 34 93 42 31 23 2 31 53 39 31 21 1 31 55 41 -0.28 47 0 0 31 45 56 11 50 57.9 35 93 41 31 30 39 32 1 14 31 28 37 32 3 16 -0.28 48 0 0 31 53 15 11 51 3.1 36 94 40 31 37 59 32 8 32 31 35 57 32 10 34 -0.28 49 0 0 32 0 17 11 51 8.4 37 95 39 31 45 1 32 15 34 31 43 0 32 17 35 -0.28 50 0 0 32 7 2 11 51 13.8 38 95 38 31 51 47 32 22 18 31 49 46 32 24 20 -0.28 51 0 0 32 13 30 11 51 19.3 39 96 37 31 58 16 32 28 46 31 56 15 32 30 47 -0.28 52 0 0 32 19 42 11 51 24.9 39 97 37 32 4 28 32 34 56 32 2 27 32 36 58 -0.28 53 0 0 32 25 36 11 51 30.6 40 97 36 32 10 23 32 40 50 32 8 22 32 42 52 -0.28 54 0 0 32 31 13 11 51 36.4 41 98 35 32 16 1 32 46 27 32 14 0 32 48 28 -0.28 55 0 0 32 36 33 11 51 42.3 42 99 34 32 21 22 32 51 46 32 19 21 32 53 48 -0.28 56 0 0 32 41 36 11 51 48.2 43 100 33 32 26 25 32 56 49 32 24 24 32 58 50 -0.28 57 0 0 32 46 22 11 51 54.3 44 100 32 32 31 11 33 1 34 32 29 11 33 3 35 -0.28 58 0 0 32 50 50 11 52 0.4 44 101 32 32 35 40 33 6 2 32 33 39 33 8 3 -0.28 59 0 0 32 55 1 11 52 6.7 45 102 31 32 39 52 33 10 12 32 37 51 33 12 13 -0.28 60 0 0 32 58 55 11 52 13.0 46 103 30 32 43 46 33 14 5 32 41 45 33 16 6 -0.28 61 0 0 33 2 31 11 52 19.4 47 103 29 32 47 23 33 17 41 32 45 22 33 19 42 -0.28 62 0 0 33 5 50 11 52 25.8 48 104 28 32 50 42 33 21 0 32 48 41 33 23 1 -0.28 63 0 0 33 8 52 11 52 32.4 49 105 27 32 53 44 33 24 1 32 51 43 33 26 2 -0.28 64 0 0 33 11 36 11 52 39.0 49 106 26 32 56 28 33 26 45 32 54 27 33 28 45 -0.28 65 0 0 33 14 2 11 52 45.7 50 107 26 32 58 55 33 29 11 32 56 54 33 31 11 -0.28 66 0 0 33 16 11 11 52 52.5 51 108 25 33 1 4 33 31 19 32 59 3 33 33 20 -0.28 67 0 0 33 18 2 11 52 59.4 52 109 24 33 2 55 33 33 10 33 0 55 33 35 11 -0.28 68 0 0 33 19 36 11 53 6.3 53 110 23 33 4 29 33 34 44 33 2 29 33 36 45 -0.28 69 0 0 33 20 52 11 53 13.4 53 111 22 33 5 46 33 36 0 33 3 45 33 38 1 -0.28 70 0 0 33 21 51 11 53 20.5 54 112 21 33 6 44 33 36 59 33 4 44 33 38 59 -0.28 71 0 0 33 22 32 11 53 27.6 55 113 21 33 7 26 33 37 39 33 5 25 33 39 40 -0.28 72 0 0 33 22 55 11 53 34.8 56 114 20 33 7 49 33 38 3 33 5 49 33 40 3 -0.28 73 0 0 33 23 1 11 53 42.1 57 115 19 33 7 54 33 38 8 33 5 54 33 40 9 -0.28 74 0 0 33 22 49 11 53 49.5 57 116 18 33 7 42 33 37 56 33 5 42 33 39 56 -0.28 75 0 0 33 22 19 11 53 56.9 58 117 17 33 7 12 33 37 26 33 5 12 33 39 27 -0.28 76 0 0 33 21 31 11 54 4.4 59 118 16 33 6 25 33 36 38 33 4 24 33 38 39 -0.28 77 0 0 33 20 26 11 54 12.0 60 120 15 33 5 19 33 35 33 33 3 19 33 37 34 -0.28 78 0 0 33 19 3 11 54 19.6 60 121 15 33 3 56 33 34 10 33 1 56 33 36 11 -0.28 79 0 0 33 17 22 11 54 27.3 61 122 14 33 2 15 33 32 30 33 0 15 33 34 30 -0.28 80 0 0 33 15 23 11 54 35.1 62 124 13 33 0 16 33 30 31 32 58 16 33 32 32 -0.28 81 0 0 33 13 7 11 54 42.9 63 125 12 32 58 0 33 28 15 32 55 59 33 30 16 -0.28 82 0 0 33 10 33 11 54 50.7 63 127 11 32 55 25 33 25 41 32 53 25 33 27 42 -0.28 83 0 0 33 7 41 11 54 58.7 64 128 10 32 52 33 33 22 50 32 50 33 33 24 51 -0.28 84 0 0 33 4 31 11 55 6.6 65 130 9 32 49 23 33 19 41 32 47 23 33 21 41 -0.28 85 0 0 33 1 4 11 55 14.7 65 132 8 32 45 56 33 16 14 32 43 55 33 18 14 -0.28 86 0 0 32 57 19 11 55 22.8 66 133 8 32 42 10 33 12 29 32 40 10 33 14 30 -0.28 87 0 0 32 53 16 11 55 30.9 67 135 7 32 38 7 33 8 26 32 36 6 33 10 27 -0.28 88 0 0 32 48 55 11 55 39.1 67 137 6 32 33 46 33 4 6 32 31 45 33 6 7 -0.28 89 0 0 32 44 17 11 55 47.4 68 139 5 32 29 7 32 59 28 32 27 6 33 1 29 -0.28 90 0 0 32 39 21 11 55 55.6 69 141 4 32 24 10 32 54 33 32 22 9 32 56 34 -0.28 91 0 0 32 34 7 11 56 4.0 69 144 3 32 18 56 32 49 19 32 16 55 32 51 21 -0.28 92 0 0 32 28 36 11 56 12.4 70 146 2 32 13 24 32 43 48 32 11 23 32 45 50 -0.28 93 0 0 32 22 46 11 56 20.8 70 148 1 32 7 34 32 38 0 32 5 33 32 40 1 -0.28 94 0 0 32 16 39 11 56 29.3 71 151 1 32 1 26 32 31 54 31 59 25 32 33 55 -0.28 95 0 0 32 10 15 11 56 37.8 71 154 0 31 55 1 32 25 30 31 53 0 32 27 31 -0.28 96 0 0 32 3 33 11 56 46.4 72 157 -1 31 48 18 32 18 48 31 46 17 32 20 50 -0.28 97 0 0 31 56 33 11 56 55.0 72 159 -2 31 41 18 32 11 49 31 39 17 32 13 51 -0.28 98 0 0 31 49 16 11 57 3.6 73 163 -3 31 34 0 32 4 33 31 31 58 32 6 34 -0.28 99 0 0 31 41 41 11 57 12.3 73 166 -4 31 26 24 31 56 59 31 24 23 31 59 1 -0.28 100 0 0 31 33 49 11 57 21.0 73 169 -5 31 18 31 31 49 7 31 16 30 31 51 9 -0.28 101 0 0 31 25 39 11 57 29.8 74 173 -6 31 10 21 31 40 58 31 8 19 31 43 0 -0.28 102 0 0 31 17 12 11 57 38.6 74 176 -7 31 1 53 31 32 32 30 59 51 31 34 34 -0.28 103 0 0 31 8 28 11 57 47.4 74 180 -7 30 53 8 31 23 49 30 51 6 31 25 51 -0.28 104 0 0 30 59 26 11 57 56.2 74 184 -8 30 44 6 31 14 48 30 42 3 31 16 50 -0.28 105 0 0 30 50 7 11 58 5.1 74 187 -9 30 34 46 31 5 30 30 32 44 31 7 33 -0.28 106 0 0 30 40 32 11 58 14.0 74 191 -10 30 25 9 30 55 55 30 23 7 30 57 58 -0.28 107 0 0 30 30 39 11 58 22.9 74 195 -11 30 15 15 30 46 3 30 13 13 30 48 6 -0.28 108 0 0 30 20 29 11 58 31.8 74 199 -12 30 5 4 30 35 54 30 3 2 30 37 57 -0.28 109 0 0 30 10 2 11 58 40.8 74 202 -13 29 54 37 30 25 28 29 52 34 30 27 31 -0.28 110 0 0 29 59 18 11 58 49.8 74 206 -14 29 43 52 30 14 46 29 41 49 30 16 49 -0.28 111 0 0 29 48 18 11 58 58.7 74 210 -15 29 32 51 30 3 46 29 30 48 30 5 50 -0.28 112 0 0 29 37 1 11 59 7.7 73 213 -16 29 21 33 29 52 30 29 19 30 29 54 34 -0.28 113 0 0 29 25 28 11 59 16.7 73 217 -17 29 9 59 29 40 58 29 7 55 29 43 2 -0.28 114 0 0 29 13 38 11 59 25.8 73 220 -17 28 58 8 29 29 9 28 56 5 29 31 13 -0.28 115 0 0 29 1 32 11 59 34.8 72 223 -18 28 46 1 29 17 5 28 43 57 29 19 8 -0.28 116 0 0 28 49 10 11 59 43.8 72 226 -19 28 33 38 29 4 44 28 31 34 29 6 48 -0.28 117 0 0 28 36 32 11 59 52.8 71 229 -20 28 20 59 28 52 7 28 18 55 28 54 11 -0.28 118 0 0 28 23 39 12 0 1.8 71 231 -21 28 8 4 28 39 14 28 6 0 28 41 18 -0.28 119 0 0 28 10 29 12 0 10.9 70 234 -22 27 54 54 28 26 6 27 52 50 28 28 10 -0.28 120 0 0 27 57 4 12 0 19.9 69 236 -23 27 41 28 28 12 42 27 39 24 28 14 46 -0.28 121 0 0 27 43 24 12 0 28.9 69 238 -24 27 27 47 27 59 3 27 25 42 28 1 7 -0.28 122 0 0 27 29 29 12 0 37.9 68 241 -25 27 13 50 27 45 8 27 11 46 27 47 13 -0.28 123 0 0 27 15 19 12 0 46.8 67 243 -26 26 59 39 27 30 59 26 57 35 27 33 4 -0.28 124 0 0 27 0 54 12 0 55.8 67 245 -27 26 45 13 27 16 35 26 43 9 27 18 40 -0.28 125 0 0 26 46 14 12 1 4.7 66 246 -28 26 30 33 27 1 57 26 28 28 27 4 2 -0.28 126 0 0 26 31 20 12 1 13.6 65 248 -29 26 15 38 26 47 4 26 13 33 26 49 9 -0.28 127 0 0 26 16 13 12 1 22.5 64 250 -30 26 0 29 26 31 57 25 58 24 26 34 3 -0.28 128 0 0 26 0 51 12 1 31.3 64 251 -31 25 45 7 26 16 36 25 43 1 26 18 42 -0.28 129 0 0 25 45 16 12 1 40.1 63 253 -32 25 29 30 26 1 2 25 27 25 26 3 8 -0.28 130 0 0 25 29 27 12 1 48.9 62 254 -33 25 13 41 25 45 14 25 11 35 25 47 20 -0.28 131 0 0 25 13 25 12 1 57.6 61 256 -34 24 57 38 25 29 14 24 55 33 25 31 20 -0.28 132 0 0 24 57 11 12 2 6.3 60 257 -35 24 41 23 25 13 0 24 39 17 25 15 6 -0.28 133 0 0 24 40 44 12 2 14.9 59 258 -35 24 24 55 24 56 34 24 22 49 24 58 40 -0.28 134 0 0 24 24 5 12 2 23.5 58 259 -36 24 8 15 24 39 56 24 6 9 24 42 2 -0.29 135 0 0 24 7 14 12 2 32.0 58 261 -37 23 51 23 24 23 6 23 49 17 24 25 12 -0.29 136 0 0 23 50 11 12 2 40.5 57 262 -38 23 34 19 24 6 4 23 32 13 24 8 10 -0.29 137 0 0 23 32 57 12 2 48.9 56 263 -39 23 17 5 23 48 50 23 14 58 23 50 57 -0.29 138 0 0 23 15 32 12 2 57.2 55 264 -40 22 59 39 23 31 26 22 57 33 23 33 33 -0.29 139 0 0 22 57 57 12 3 5.4 54 265 -41 22 42 3 23 13 52 22 39 56 23 15 58 -0.29 140 0 0 22 40 11 12 3 13.6 53 266 -42 22 24 16 22 56 7 22 22 10 22 58 14 -0.29 141 0 0 22 22 15 12 3 21.7 52 266 -43 22 6 20 22 38 12 22 4 13 22 40 19 -0.29 142 0 0 22 4 10 12 3 29.8 51 267 -44 21 48 14 22 20 7 21 46 7 22 22 14 -0.29 143 0 0 21 45 56 12 3 37.7 50 268 -45 21 29 59 22 1 54 21 27 52 22 4 1 -0.29 144 0 0 21 27 33 12 3 45.5 49 269 -46 21 11 36 21 43 31 21 9 29 21 45 39 -0.29 145 0 0 21 9 1 12 3 53.3 48 270 -47 20 53 4 21 25 0 20 50 57 21 27 8 -0.29 146 0 0 20 50 22 12 4 0.9 47 270 -48 20 34 24 21 6 22 20 32 17 21 8 29 -0.29 147 0 0 20 31 35 12 4 8.5 46 271 -49 20 15 37 20 47 35 20 13 29 20 49 43 -0.29 148 0 0 20 12 41 12 4 15.9 45 272 -50 19 56 42 20 28 42 19 54 35 20 30 50 -0.29 149 0 0 19 53 41 12 4 23.3 44 272 -51 19 37 41 20 9 42 19 35 34 20 11 49 -0.29 150 0 0 19 34 34 12 4 30.5 44 273 -52 19 18 34 19 50 35 19 16 26 19 52 43 -0.29 151 0 0 19 15 21 12 4 37.6 43 273 -53 18 59 21 19 31 23 18 57 13 19 33 30 -0.29 152 0 0 18 56 3 12 4 44.6 42 274 -54 18 40 2 19 12 5 18 37 55 19 14 13 -0.29 153 0 0 18 36 40 12 4 51.4 41 275 -55 18 20 39 18 52 42 18 18 31 18 54 50 -0.29 154 0 0 18 17 12 12 4 58.2 40 275 -56 18 1 11 18 33 15 17 59 3 18 35 23 -0.29 155 0 0 17 57 41 12 5 4.8 39 276 -57 17 41 39 18 13 43 17 39 32 18 15 51 -0.29 156 0 0 17 38 6 12 5 11.3 38 276 -58 17 22 4 17 54 8 17 19 56 17 56 16 -0.29 157 0 0 17 18 27 12 5 17.6 37 277 -59 17 2 26 17 34 30 17 0 18 17 36 38 -0.29 158 0 0 16 58 46 12 5 23.8 36 277 -60 16 42 45 17 14 50 16 40 37 17 16 58 -0.29 159 0 0 16 39 3 12 5 29.8 34 277 -61 16 23 2 16 55 7 16 20 54 16 57 15 -0.29 160 0 0 16 19 19 12 5 35.7 33 278 -62 16 3 17 16 35 22 16 1 9 16 37 30 -0.29 161 0 0 15 59 33 12 5 41.5 32 278 -62 15 43 31 16 15 36 15 41 23 16 17 44 -0.30 162 0 0 15 39 46 12 5 47.1 31 279 -63 15 23 44 15 55 49 15 21 37 15 57 57 -0.30 163 0 0 15 19 59 12 5 52.5 30 279 -64 15 3 57 15 36 2 15 1 50 15 38 10 -0.30 164 0 0 15 0 13 12 5 57.8 29 279 -65 14 44 11 15 16 15 14 42 3 15 18 23 -0.30 165 0 0 14 40 27 12 6 2.9 28 280 -66 14 24 25 14 56 29 14 22 18 14 58 37 -0.30 166 0 0 14 20 42 12 6 7.9 27 280 -67 14 4 41 14 36 44 14 2 33 14 38 52 -0.30 167 0 0 14 0 59 12 6 12.7 26 280 -68 13 44 58 14 17 1 13 42 50 14 19 9 -0.30 168 0 0 13 41 17 12 6 17.3 25 281 -69 13 25 17 13 57 19 13 23 9 13 59 27 -0.30 169 0 0 13 21 39 12 6 21.7 24 281 -69 13 5 39 13 37 41 13 3 31 13 39 48 -0.30 170 0 0 13 2 4 12 6 26.0 23 281 -70 12 46 4 13 18 5 12 43 56 13 20 13 -0.30 171 0 0 12 42 32 12 6 30.1 22 282 -71 12 26 32 12 58 33 12 24 25 13 0 40 -0.30 172 0 0 12 23 4 12 6 34.0 21 282 -72 12 7 5 12 39 4 12 4 57 12 41 12 -0.30 173 0 0 12 3 40 12 6 37.8 20 282 -72 11 47 42 12 19 40 11 45 35 12 21 48 -0.30 174 0 0 11 44 22 12 6 41.3 19 282 -73 11 28 24 12 0 21 11 26 16 12 2 29 -0.30 175 0 0 11 25 8 12 6 44.7 18 283 -74 11 9 11 11 41 7 11 7 4 11 43 15 -0.30 176 0 0 11 6 1 12 6 47.9 17 283 -74 10 50 4 11 21 59 10 47 57 11 24 7 -0.30 177 0 0 10 47 0 12 6 50.9 16 283 -75 10 31 3 11 2 57 10 28 56 11 5 5 -0.31 178 0 0 10 28 5 12 6 53.7 15 283 -75 10 12 9 10 44 2 10 10 2 10 46 9 -0.31 179 0 0 10 9 17 12 6 56.4 14 283 -75 9 53 22 10 25 14 9 51 16 10 27 21 -0.31 180 0 0 9 50 37 12 6 58.8 13 284 -76 9 34 43 10 6 33 9 32 36 10 8 40 -0.31 -179 0 0 9 32 5 12 7 1.1 12 284 -76 9 16 11 9 48 0 9 14 5 9 50 7 -0.31 -178 0 0 9 13 41 12 7 3.1 11 284 -76 8 57 48 9 29 36 8 55 42 9 31 43 -0.31 -177 0 0 8 55 26 12 7 5.0 10 284 -76 8 39 34 9 11 20 8 37 27 9 13 26 -0.32 -176 0 0 8 37 20 12 7 6.7 9 284 -76 8 21 28 8 53 13 8 19 22 8 55 19 -0.32 -175 0 0 8 19 23 12 7 8.2 8 284 -76 8 3 32 8 35 15 8 1 26 8 37 22 -0.32 -174 0 0 8 1 36 12 7 9.5 7 285 -76 7 45 46 8 17 28 7 43 40 8 19 34 -0.33 -173 0 0 7 44 0 12 7 10.6 6 285 -75 7 28 10 7 59 50 7 26 4 8 1 57 -0.34 -172 0 0 7 26 34 12 7 11.6 5 285 -75 7 10 45 7 42 23 7 8 39 7 44 29 -0.35 -171 0 0 7 9 18 12 7 12.3 3 285 -75 6 53 31 7 25 7 6 51 25 7 27 13 -0.36 -170 0 0 6 52 14 12 7 12.8 2 285 -74 6 36 28 7 8 2 6 34 22 7 10 8 -0.39 -169 0 0 6 35 22 12 7 13.2 1 285 -74 6 19 36 6 51 9 6 17 31 6 53 15 -0.47 -168 0 0 6 18 41 12 7 13.4 0 285 -73 6 2 56 6 34 28 6 0 51 6 36 33 -0.96 Uncertainty in time = +/- 1 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: TYC 1347-00268-1 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 26 57.7742 DE: +15 19 07.444 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 26 57.7741 DE: +15 19 07.444 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.1 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (584) Semiramis asteroid class: approx. diameter [km]: 54 approx. diameter ["]: 0.033 distance from Earth [AU]: 2.24260 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#107 date of fit: 2023 Feb 07 source of used astrometry: MPC, JPL number of used observations: 0 number of rejected observations: 0 time covered by the observations: 1800 Jan 01 - 1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.009", 0.002", 108.18° remarks: * orbital elements for (584)Semiramis : Mean anomaly = 102.6648750897 deg Arg. of pericenter = 85.3037782559 deg Long. of node = 282.0130936904 deg Inclination = 10.7198904234 deg Eccentricity = 0.2336515401 Semimajor axis = 2.3734685107 AU Perihelion dist = 1.8189039379 AU Mag: H = 8.56, G = 0.24 Epoch of elements : MJD 60035.49881944 TDT (2023 Apr 01.4988) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1072023Feb07,4.74,2023,4,1,11.969921,0.042236,0.263506,6.323068,-1.010676,0.005549,-0.000737,0.000000,0.000000 102.9323,15.2721,1.44,4.55,False TYC 1347-00268-1,7.44938175,15.3187345,0.00,12.10,0.00,0.0,0,,7.47132275,15.2721291,1.65,0.00,0,0,0 584,Semiramis,13.48,53.8,2.2426,0,0,1.714,-3.96,,2.8,0 0,102.5304,2023,4,1,85.3038,282.0131,10.7199,0.23365,2.37347,1.81890,8.58,5.0,0.15 1.066,0.0087,0.0017,108,0.0022,Known errors,-1.00,-1,-1,-1 20230401_0268-1,59990.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:55 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org