IOTA/IOTA-ES occultation update for (584) Semiramis / UCAC4 531-040663 event on 2023 Feb 08, 11:08 UT Visible from USA, SW Canada, E Russia Summary ------- On 2023 Feb 08 UT, the 53.8 km diameter asteroid (584) Semiramis will occult a 12.0 mag star in the constellation Gemini for observers along a path across USA, SW Canada, E Russia. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.90 mag to 12.23 mag (the magnitude of the asteroid) for at most 6.100 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: 99 * date and approx. time of event: 2023 Feb 08, 10:59 - 2023 Feb 08, 11:18 * geocentric midpoint of event [JD]: 2459983.96461671 * magnitude of target star: 11.95 * magnitude drop [mag]: 0.90 * estimated maximum duration [s]: 6.100 * Moon: 94 % sunlit, 58° distance * Sun: 151° distance * rough path description: USA, SW Canada, E Russia The occultation path -------------------- * approximate projected width [km]: 68 * 1 sigma uncertainty interval [path widths]: +/- 0.11 * 1 sigma uncertainty interval [seconds]: +/- 1.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.003", 107°) * approx speed of asteroid's shadow [km/s]: 8.8225 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 531-040663 by 584 Semiramis on 2023 Feb 8 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 64 0 0 32 36 15 11 18 33.9 0 71 23 32 55 40 32 16 55 33 0 7 32 12 31 .... 65 0 0 32 54 2 11 18 33.7 1 72 22 33 13 28 32 34 42 33 17 56 32 30 17 -0.62 66 0 0 33 11 54 11 18 33.2 2 72 21 33 31 20 32 52 32 33 35 48 32 48 7 -0.67 67 0 0 33 29 49 11 18 32.5 3 73 20 33 49 16 33 10 27 33 53 45 33 6 1 -0.70 68 0 0 33 47 48 11 18 31.6 4 73 19 34 7 16 33 28 25 34 11 45 33 23 59 -0.71 69 0 0 34 5 50 11 18 30.5 5 74 18 34 25 19 33 46 26 34 29 48 33 42 0 -0.72 70 0 0 34 23 55 11 18 29.2 6 74 17 34 43 24 34 4 30 34 47 53 34 0 4 -0.73 71 0 0 34 42 1 11 18 27.7 7 75 17 35 1 32 34 22 36 35 6 1 34 18 10 -0.73 72 0 0 35 0 9 11 18 25.9 8 76 16 35 19 41 34 40 44 35 24 10 34 36 17 -0.73 73 0 0 35 18 19 11 18 24.0 8 76 15 35 37 51 34 58 52 35 42 20 34 54 26 -0.73 74 0 0 35 36 29 11 18 21.9 9 77 14 35 56 2 35 17 2 36 0 31 35 12 35 -0.74 75 0 0 35 54 40 11 18 19.6 10 77 13 36 14 13 35 35 12 36 18 42 35 30 45 -0.74 76 0 0 36 12 50 11 18 17.1 11 78 12 36 32 24 35 53 22 36 36 54 35 48 55 -0.74 77 0 0 36 31 1 11 18 14.4 12 79 11 36 50 35 36 11 32 36 55 5 36 7 5 -0.74 78 0 0 36 49 10 11 18 11.5 13 79 11 37 8 45 36 29 41 37 13 15 36 25 14 -0.74 79 0 0 37 7 18 11 18 8.4 13 80 10 37 26 54 36 47 49 37 31 24 36 43 21 -0.75 80 0 0 37 25 25 11 18 5.2 14 80 9 37 45 1 37 5 55 37 49 31 37 1 28 -0.75 81 0 0 37 43 29 11 18 1.8 15 81 8 38 3 5 37 23 59 38 7 35 37 19 32 -0.75 82 0 0 38 1 31 11 17 58.2 16 82 7 38 21 7 37 42 1 38 25 38 37 37 33 -0.75 83 0 0 38 19 30 11 17 54.5 17 82 6 38 39 7 37 59 59 38 43 37 37 55 32 -0.75 84 0 0 38 37 26 11 17 50.6 18 83 6 38 57 3 38 17 55 39 1 33 38 13 28 -0.75 85 0 0 38 55 18 11 17 46.5 18 84 5 39 14 55 38 35 47 39 19 25 38 31 19 -0.75 86 0 0 39 13 7 11 17 42.3 19 84 4 39 32 43 38 53 35 39 37 14 38 49 8 -0.75 87 0 0 39 30 50 11 17 38.0 20 85 3 39 50 27 39 11 19 39 54 58 39 6 51 -0.75 88 0 0 39 48 30 11 17 33.4 21 86 2 40 8 7 39 28 58 40 12 37 39 24 30 -0.75 89 0 0 40 6 4 11 17 28.8 21 87 2 40 25 41 39 46 32 40 30 11 39 42 5 -0.75 90 0 0 40 23 32 11 17 24.0 22 87 1 40 43 9 40 4 1 40 47 40 39 59 33 -0.75 91 0 0 40 40 55 11 17 19.1 23 88 0 41 0 32 40 21 24 41 5 3 40 16 57 -0.75 92 0 0 40 58 12 11 17 14.1 24 89 -1 41 17 49 40 38 41 41 22 19 40 34 14 -0.75 93 0 0 41 15 23 11 17 8.9 24 90 -2 41 35 0 40 55 52 41 39 30 40 51 25 -0.75 94 0 0 41 32 27 11 17 3.6 25 90 -2 41 52 3 41 12 56 41 56 34 41 8 29 -0.76 95 0 0 41 49 24 11 16 58.2 26 91 -3 42 9 0 41 29 54 42 13 30 41 25 26 -0.76 96 0 0 42 6 14 11 16 52.7 27 92 -4 42 25 50 41 46 44 42 30 20 41 42 16 -0.76 97 0 0 42 22 56 11 16 47.0 27 93 -5 42 42 32 42 3 26 42 47 2 41 58 59 -0.76 98 0 0 42 39 31 11 16 41.3 28 94 -5 42 59 6 42 20 1 43 3 36 42 15 34 -0.76 99 0 0 42 55 57 11 16 35.4 29 94 -6 43 15 32 42 36 28 43 20 2 42 32 1 -0.76 100 0 0 43 12 16 11 16 29.5 29 95 -7 43 31 50 42 52 47 43 36 19 42 48 20 -0.76 101 0 0 43 28 25 11 16 23.5 30 96 -8 43 47 59 43 8 57 43 52 28 43 4 30 -0.76 102 0 0 43 44 26 11 16 17.3 31 97 -9 44 3 59 43 24 59 44 8 29 43 20 32 -0.76 103 0 0 44 0 18 11 16 11.1 31 98 -9 44 19 50 43 40 51 44 24 20 43 36 24 -0.76 104 0 0 44 16 1 11 16 4.8 32 99 -10 44 35 32 43 56 34 44 40 2 43 52 8 -0.76 105 0 0 44 31 34 11 15 58.4 33 100 -11 44 51 5 44 12 8 44 55 34 44 7 42 -0.76 106 0 0 44 46 57 11 15 52.0 33 101 -11 45 6 28 44 27 32 45 10 57 44 23 6 -0.76 107 0 0 45 2 11 11 15 45.5 34 102 -12 45 21 41 44 42 47 45 26 9 44 38 21 -0.76 108 0 0 45 17 15 11 15 38.9 35 102 -13 45 36 44 44 57 51 45 41 12 44 53 25 -0.76 109 0 0 45 32 8 11 15 32.2 35 103 -14 45 51 36 45 12 45 45 56 5 45 8 20 -0.76 110 0 0 45 46 51 11 15 25.5 36 104 -14 46 6 18 45 27 29 46 10 46 45 23 4 -0.76 111 0 0 46 1 23 11 15 18.7 36 105 -15 46 20 50 45 42 2 46 25 18 45 37 37 -0.76 112 0 0 46 15 45 11 15 11.8 37 106 -16 46 35 11 45 56 25 46 39 38 45 52 0 -0.76 113 0 0 46 29 56 11 15 4.9 38 107 -16 46 49 21 46 10 37 46 53 48 46 6 12 -0.76 114 0 0 46 43 56 11 14 58.0 38 108 -17 47 3 19 46 24 37 47 7 47 46 20 13 -0.76 115 0 0 46 57 44 11 14 51.0 39 110 -18 47 17 7 46 38 27 47 21 34 46 34 2 -0.77 116 0 0 47 11 22 11 14 44.0 39 111 -18 47 30 43 46 52 5 47 35 10 46 47 41 -0.77 117 0 0 47 24 48 11 14 36.9 40 112 -19 47 44 8 47 5 32 47 48 35 47 1 8 -0.77 118 0 0 47 38 2 11 14 29.7 40 113 -20 47 57 22 47 18 48 48 1 48 47 14 24 -0.77 119 0 0 47 51 5 11 14 22.6 41 114 -20 48 10 24 47 31 51 48 14 50 47 27 28 -0.77 120 0 0 48 3 56 11 14 15.4 41 115 -21 48 23 13 47 44 43 48 27 39 47 40 20 -0.77 121 0 0 48 16 35 11 14 8.1 42 116 -22 48 35 52 47 57 24 48 40 17 47 53 1 -0.77 122 0 0 48 29 2 11 14 0.9 42 117 -22 48 48 18 48 9 52 48 52 43 48 5 29 -0.77 123 0 0 48 41 18 11 13 53.6 43 118 -23 49 0 32 48 22 9 49 4 57 48 17 46 -0.77 124 0 0 48 53 21 11 13 46.3 43 120 -24 49 12 34 48 34 13 49 16 59 48 29 51 -0.77 125 0 0 49 5 12 11 13 38.9 44 121 -24 49 24 24 48 46 5 49 28 49 48 41 43 -0.77 126 0 0 49 16 51 11 13 31.6 44 122 -25 49 36 2 48 57 45 49 40 26 48 53 24 -0.77 127 0 0 49 28 18 11 13 24.2 45 123 -25 49 47 27 49 9 13 49 51 51 49 4 52 -0.77 128 0 0 49 39 32 11 13 16.8 45 124 -26 49 58 40 49 20 28 50 3 4 49 16 7 -0.77 129 0 0 49 50 34 11 13 9.4 45 126 -27 50 9 41 49 31 31 50 14 5 49 27 11 -0.77 130 0 0 50 1 23 11 13 1.9 46 127 -27 50 20 29 49 42 22 50 24 53 49 38 1 -0.77 131 0 0 50 12 0 11 12 54.5 46 128 -28 50 31 5 49 53 0 50 35 28 49 48 40 -0.77 132 0 0 50 22 24 11 12 47.0 46 130 -28 50 41 28 50 3 26 50 45 51 49 59 6 -0.77 133 0 0 50 32 36 11 12 39.6 47 131 -29 50 51 39 50 13 39 50 56 1 50 9 19 -0.77 134 0 0 50 42 36 11 12 32.1 47 132 -30 51 1 37 50 23 39 51 5 59 50 19 20 -0.77 135 0 0 50 52 22 11 12 24.6 48 134 -30 51 11 22 50 33 27 51 15 44 50 29 8 -0.77 136 0 0 51 1 56 11 12 17.2 48 135 -31 51 20 55 50 43 2 51 25 17 50 38 43 -0.77 137 0 0 51 11 18 11 12 9.7 48 136 -31 51 30 15 50 52 25 51 34 37 50 48 6 -0.77 138 0 0 51 20 26 11 12 2.2 48 138 -32 51 39 23 51 1 35 51 43 44 50 57 16 -0.77 139 0 0 51 29 22 11 11 54.7 49 139 -32 51 48 18 51 10 32 51 52 39 51 6 13 -0.77 140 0 0 51 38 5 11 11 47.2 49 140 -33 51 57 0 51 19 16 52 1 20 51 14 58 -0.78 141 0 0 51 46 36 11 11 39.7 49 142 -33 52 5 29 51 27 48 52 9 50 51 23 30 -0.78 142 0 0 51 54 54 11 11 32.2 50 143 -34 52 13 46 51 36 7 52 18 6 51 31 49 -0.78 143 0 0 52 2 59 11 11 24.8 50 145 -34 52 21 50 51 44 13 52 26 10 51 39 56 -0.78 144 0 0 52 10 51 11 11 17.3 50 146 -35 52 29 41 51 52 6 52 34 1 51 47 49 -0.78 145 0 0 52 18 31 11 11 9.8 50 148 -35 52 37 20 51 59 47 52 41 39 51 55 30 -0.78 146 0 0 52 25 58 11 11 2.4 50 149 -36 52 44 45 52 7 15 52 49 5 52 2 58 -0.78 147 0 0 52 33 12 11 10 54.9 51 150 -36 52 51 59 52 14 30 52 56 17 52 10 14 -0.78 148 0 0 52 40 13 11 10 47.5 51 152 -37 52 58 59 52 21 33 53 3 17 52 17 16 -0.78 149 0 0 52 47 2 11 10 40.0 51 153 -37 53 5 47 52 28 22 53 10 5 52 24 6 -0.78 150 0 0 52 53 38 11 10 32.6 51 155 -38 53 12 22 52 34 59 53 16 40 52 30 44 -0.78 151 0 0 53 0 1 11 10 25.2 51 156 -38 53 18 44 52 41 23 53 23 2 52 37 8 -0.78 152 0 0 53 6 12 11 10 17.8 51 158 -39 53 24 53 52 47 35 53 29 11 52 43 20 -0.78 153 0 0 53 12 10 11 10 10.4 52 159 -39 53 30 50 52 53 34 53 35 8 52 49 19 -0.78 154 0 0 53 17 55 11 10 3.0 52 161 -40 53 36 35 52 59 20 53 40 52 52 55 5 -0.78 155 0 0 53 23 27 11 9 55.6 52 162 -40 53 42 6 53 4 53 53 46 23 53 0 39 -0.78 156 0 0 53 28 47 11 9 48.3 52 164 -40 53 47 25 53 10 14 53 51 42 53 6 0 -0.78 157 0 0 53 33 55 11 9 40.9 52 166 -41 53 52 32 53 15 22 53 56 48 53 11 8 -0.78 158 0 0 53 38 49 11 9 33.6 52 167 -41 53 57 25 53 20 18 54 1 42 53 16 4 -0.78 159 0 0 53 43 31 11 9 26.3 52 169 -42 54 2 7 53 25 0 54 6 23 53 20 47 -0.78 160 0 0 53 48 1 11 9 19.0 52 170 -42 54 6 35 53 29 31 54 10 51 53 25 17 -0.78 161 0 0 53 52 18 11 9 11.7 52 172 -42 54 10 52 53 33 48 54 15 7 53 29 35 -0.78 162 0 0 53 56 22 11 9 4.4 52 173 -43 54 14 55 53 37 54 54 19 11 53 33 40 -0.78 163 0 0 54 0 14 11 8 57.1 52 175 -43 54 18 47 53 41 46 54 23 2 53 37 33 -0.78 164 0 0 54 3 53 11 8 49.9 52 176 -44 54 22 25 53 45 26 54 26 40 53 41 13 -0.78 165 0 0 54 7 20 11 8 42.7 52 178 -44 54 25 51 53 48 53 54 30 6 53 44 40 -0.78 166 0 0 54 10 34 11 8 35.5 52 179 -44 54 29 4 53 52 8 54 33 19 53 47 55 -0.78 167 0 0 54 13 35 11 8 28.3 52 181 -45 54 32 5 53 55 10 54 36 20 53 50 57 -0.78 168 0 0 54 16 24 11 8 21.1 52 182 -45 54 34 54 53 57 59 54 39 9 53 53 47 -0.78 169 0 0 54 19 1 11 8 13.9 52 184 -45 54 37 30 54 0 36 54 41 45 53 56 24 -0.78 170 0 0 54 21 25 11 8 6.8 52 185 -46 54 39 53 54 3 0 54 44 8 53 58 48 -0.78 171 0 0 54 23 36 11 7 59.7 52 187 -46 54 42 5 54 5 12 54 46 19 54 1 0 -0.78 172 0 0 54 25 35 11 7 52.6 51 188 -46 54 44 3 54 7 12 54 48 18 54 3 0 -0.78 173 0 0 54 27 22 11 7 45.5 51 190 -46 54 45 50 54 8 59 54 50 4 54 4 47 -0.78 174 0 0 54 28 56 11 7 38.4 51 191 -47 54 47 23 54 10 33 54 51 38 54 6 21 -0.78 175 0 0 54 30 18 11 7 31.4 51 193 -47 54 48 45 54 11 55 54 52 59 54 7 43 -0.78 176 0 0 54 31 27 11 7 24.3 51 194 -47 54 49 54 54 13 5 54 54 8 54 8 53 -0.78 177 0 0 54 32 24 11 7 17.3 51 196 -48 54 50 50 54 14 1 54 55 4 54 9 50 -0.78 178 0 0 54 33 8 11 7 10.3 51 197 -48 54 51 34 54 14 46 54 55 48 54 10 34 -0.78 179 0 0 54 33 40 11 7 3.4 50 199 -48 54 52 6 54 15 18 54 56 20 54 11 6 -0.78 180 0 0 54 33 59 11 6 56.4 50 200 -48 54 52 25 54 15 37 54 56 39 54 11 26 -0.78 -179 0 0 54 34 6 11 6 49.5 50 201 -49 54 52 32 54 15 44 54 56 46 54 11 33 -0.78 -178 0 0 54 34 0 11 6 42.6 50 203 -49 54 52 27 54 15 39 54 56 41 54 11 27 -0.78 -177 0 0 54 33 42 11 6 35.7 50 204 -49 54 52 9 54 15 21 54 56 23 54 11 9 -0.78 -176 0 0 54 33 12 11 6 28.8 49 206 -49 54 51 38 54 14 50 54 55 52 54 10 38 -0.78 -175 0 0 54 32 29 11 6 22.0 49 207 -49 54 50 55 54 14 7 54 55 9 54 9 55 -0.78 -174 0 0 54 31 33 11 6 15.1 49 208 -50 54 50 0 54 13 11 54 54 14 54 9 0 -0.78 -173 0 0 54 30 25 11 6 8.3 49 210 -50 54 48 52 54 12 3 54 53 6 54 7 51 -0.78 -172 0 0 54 29 5 11 6 1.5 48 211 -50 54 47 32 54 10 43 54 51 46 54 6 31 -0.78 -171 0 0 54 27 32 11 5 54.8 48 213 -50 54 45 59 54 9 9 54 50 13 54 4 57 -0.78 -170 0 0 54 25 46 11 5 48.0 48 214 -50 54 44 14 54 7 24 54 48 28 54 3 12 -0.78 -169 0 0 54 23 48 11 5 41.3 48 215 -50 54 42 16 54 5 25 54 46 31 54 1 13 -0.78 -168 0 0 54 21 38 11 5 34.6 47 217 -50 54 40 6 54 3 14 54 44 20 53 59 2 -0.78 -167 0 0 54 19 15 11 5 28.0 47 218 -51 54 37 43 54 0 51 54 41 58 53 56 38 -0.78 -166 0 0 54 16 39 11 5 21.3 47 219 -51 54 35 8 53 58 15 54 39 23 53 54 2 -0.78 -165 0 0 54 13 51 11 5 14.7 46 220 -51 54 32 20 53 55 26 54 36 35 53 51 13 -0.78 -164 0 0 54 10 50 11 5 8.1 46 222 -51 54 29 20 53 52 25 54 33 34 53 48 12 -0.78 -163 0 0 54 7 36 11 5 1.5 46 223 -51 54 26 7 53 49 11 54 30 22 53 44 58 -0.78 -162 0 0 54 4 10 11 4 55.0 45 224 -51 54 22 41 53 45 44 54 26 56 53 41 31 -0.78 -161 0 0 54 0 32 11 4 48.5 45 225 -51 54 19 3 53 42 5 54 23 18 53 37 52 -0.78 -160 0 0 53 56 40 11 4 42.0 44 227 -51 54 15 12 53 38 13 54 19 28 53 33 59 -0.78 -159 0 0 53 52 36 11 4 35.5 44 228 -51 54 11 9 53 34 8 54 15 24 53 29 54 -0.78 -158 0 0 53 48 19 11 4 29.1 44 229 -51 54 6 53 53 29 50 54 11 8 53 25 37 -0.78 -157 0 0 53 43 49 11 4 22.6 43 230 -51 54 2 24 53 25 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2.2 38 245 -50 52 44 43 52 7 16 52 49 2 52 2 59 -0.78 -143 0 0 52 18 27 11 2 56.3 37 246 -50 52 37 14 51 59 45 52 41 33 51 55 28 -0.78 -142 0 0 52 10 44 11 2 50.4 37 247 -50 52 29 32 51 52 1 52 33 52 51 47 44 -0.78 -141 0 0 52 2 48 11 2 44.6 36 248 -49 52 21 38 51 44 4 52 25 57 51 39 47 -0.78 -140 0 0 51 54 39 11 2 38.8 36 249 -49 52 13 30 51 35 54 52 17 49 51 31 37 -0.78 -139 0 0 51 46 17 11 2 33.0 35 250 -49 52 5 9 51 27 31 52 9 29 51 23 13 -0.78 -138 0 0 51 37 42 11 2 27.3 35 251 -49 51 56 35 51 18 55 52 0 55 51 14 37 -0.78 -137 0 0 51 28 54 11 2 21.7 34 252 -48 51 47 48 51 10 5 51 52 9 51 5 48 -0.78 -136 0 0 51 19 53 11 2 16.1 34 253 -48 51 38 49 51 1 3 51 43 9 50 56 45 -0.78 -135 0 0 51 10 39 11 2 10.5 33 254 -48 51 29 36 50 51 48 51 33 57 50 47 30 -0.78 -134 0 0 51 1 12 11 2 5.0 32 255 -48 51 20 10 50 42 20 51 24 31 50 38 1 -0.78 -133 0 0 50 51 32 11 1 59.6 32 256 -47 51 10 31 50 32 38 51 14 52 50 28 19 -0.78 -132 0 0 50 41 39 11 1 54.2 31 257 -47 51 0 39 50 22 44 51 5 1 50 18 25 -0.78 -131 0 0 50 31 33 11 1 48.9 31 258 -47 50 50 34 50 12 37 50 54 56 50 8 17 -0.78 -130 0 0 50 21 14 11 1 43.7 30 259 -46 50 40 16 50 2 17 50 44 39 49 57 57 -0.78 -129 0 0 50 10 42 11 1 38.5 30 260 -46 50 29 45 49 51 43 50 34 8 49 47 23 -0.78 -128 0 0 49 59 57 11 1 33.3 29 260 -46 50 19 2 49 40 57 50 23 25 49 36 37 -0.78 -127 0 0 49 48 59 11 1 28.3 28 261 -45 50 8 5 49 29 58 50 12 28 49 25 38 -0.78 -126 0 0 49 37 48 11 1 23.3 28 262 -45 49 56 55 49 18 46 50 1 19 49 14 25 -0.78 -125 0 0 49 26 25 11 1 18.4 27 263 -44 49 45 33 49 7 22 49 49 57 49 3 0 -0.78 -124 0 0 49 14 49 11 1 13.5 27 264 -44 49 33 58 48 55 44 49 38 22 48 51 23 -0.78 -123 0 0 49 3 0 11 1 8.8 26 265 -44 49 22 10 48 43 54 49 26 35 48 39 32 -0.78 -122 0 0 48 50 58 11 1 4.1 25 266 -43 49 10 10 48 31 51 49 14 35 48 27 29 -0.78 -121 0 0 48 38 44 11 0 59.5 25 267 -43 48 57 57 48 19 36 49 2 22 48 15 13 -0.78 -120 0 0 48 26 17 11 0 54.9 24 267 -42 48 45 31 48 7 8 48 49 56 48 2 45 -0.78 -119 0 0 48 13 38 11 0 50.5 23 268 -42 48 32 53 47 54 27 48 37 19 47 50 5 -0.78 -118 0 0 48 0 46 11 0 46.2 23 269 -41 48 20 3 47 41 35 48 24 28 47 37 12 -0.78 -117 0 0 47 47 42 11 0 41.9 22 270 -41 48 7 0 47 28 30 48 11 26 47 24 6 -0.78 -116 0 0 47 34 26 11 0 37.7 21 271 -40 47 53 45 47 15 12 47 58 11 47 10 49 -0.78 -115 0 0 47 20 58 11 0 33.7 21 271 -40 47 40 18 47 1 43 47 44 44 46 57 19 -0.78 -114 0 0 47 7 17 11 0 29.7 20 272 -39 47 26 39 46 48 2 47 31 5 46 43 37 -0.78 -113 0 0 46 53 25 11 0 25.9 19 273 -39 47 12 47 46 34 8 47 17 14 46 29 44 -0.78 -112 0 0 46 39 21 11 0 22.1 19 274 -38 46 58 45 46 20 3 47 3 12 46 15 39 -0.78 -111 0 0 46 25 6 11 0 18.5 18 275 -38 46 44 30 46 5 47 46 48 58 46 1 22 -0.78 -110 0 0 46 10 39 11 0 14.9 17 275 -37 46 30 4 45 51 19 46 34 32 45 46 54 -0.78 -109 0 0 45 56 0 11 0 11.5 17 276 -36 46 15 27 45 36 40 46 19 55 45 32 14 -0.79 -108 0 0 45 41 11 11 0 8.2 16 277 -36 46 0 38 45 21 49 46 5 6 45 17 24 -0.79 -107 0 0 45 26 10 11 0 5.1 15 278 -35 45 45 38 45 6 48 45 50 7 45 2 22 -0.79 -106 0 0 45 10 59 11 0 2.0 14 278 -35 45 30 28 44 51 35 45 34 56 44 47 9 -0.79 -105 0 0 44 55 37 10 59 59.1 14 279 -34 45 15 6 44 36 12 45 19 35 44 31 46 -0.79 -104 0 0 44 40 4 10 59 56.3 13 280 -33 44 59 35 44 20 39 45 4 4 44 16 12 -0.79 -103 0 0 44 24 21 10 59 53.7 12 281 -33 44 43 52 44 4 55 44 48 22 44 0 29 -0.79 -102 0 0 44 8 28 10 59 51.2 12 281 -32 44 28 0 43 49 1 44 32 29 43 44 35 -0.80 -101 0 0 43 52 25 10 59 48.8 11 282 -32 44 11 58 43 32 58 44 16 27 43 28 31 -0.80 -100 0 0 43 36 12 10 59 46.6 10 283 -31 43 55 46 43 16 44 44 0 16 43 12 17 -0.80 - 99 0 0 43 19 50 10 59 44.5 9 283 -30 43 39 24 43 0 22 43 43 54 42 55 55 -0.81 - 98 0 0 43 3 19 10 59 42.6 8 284 -29 43 22 54 42 43 50 43 27 24 42 39 23 -0.81 - 97 0 0 42 46 39 10 59 40.8 8 285 -29 43 6 14 42 27 9 43 10 44 42 22 42 -0.82 - 96 0 0 42 29 50 10 59 39.2 7 285 -28 42 49 26 42 10 20 42 53 56 42 5 52 -0.82 - 95 0 0 42 12 53 10 59 37.7 6 286 -27 42 32 29 41 53 22 42 36 59 41 48 54 -0.83 - 94 0 0 41 55 47 10 59 36.4 5 287 -27 42 15 24 41 36 16 42 19 54 41 31 48 -0.84 - 93 0 0 41 38 34 10 59 35.3 5 287 -26 41 58 11 41 19 2 42 2 42 41 14 35 -0.86 - 92 0 0 41 21 13 10 59 34.4 4 288 -25 41 40 51 41 1 41 41 45 21 40 57 14 -0.88 - 91 0 0 41 3 45 10 59 33.6 3 289 -24 41 23 23 40 44 13 41 27 54 40 39 45 -0.91 - 90 0 0 40 46 10 10 59 33.0 2 289 -24 41 5 49 40 26 38 41 10 19 40 22 10 -0.97 - 89 0 0 40 28 29 10 59 32.6 1 290 -23 40 48 7 40 8 56 40 52 38 40 4 28 -1.10 - 88 0 0 40 10 41 10 59 32.3 1 291 -22 40 30 20 39 51 8 40 34 51 39 46 40 -1.63 Uncertainty in time = +/- 2 secs Prediction of 2022 Dec 13.0 Data for the target star ------------------------ * name: UCAC4 531-040663 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 26 20.1717 DE: +16 08 35.433 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 26 20.1717 DE: +16 08 35.433 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (584) Semiramis asteroid class: approx. diameter [km]: 54 approx. diameter ["]: 0.047 distance from Earth [AU]: 1.57630 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#106 date of fit: 2022 Nov 22 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): 0.014", 0.003", 106.723° remarks: * orbital elements for (584)Semiramis : Mean anomaly = 88.6486350456 deg Arg. of pericenter = 85.2914213031 deg Long. of node = 282.0140402779 deg Inclination = 10.7202527781 deg Eccentricity = 0.2336839684 Semimajor axis = 2.3733536874 AU Perihelion dist = 1.8187389793 AU Mag: H = 8.55, G = 0.24 Epoch of elements : MJD 59983.46451389 TDT (2023 Feb 08.4645) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1062022Nov22,6.10,2023,2,8,11.150801,-0.042642,0.610248,-4.967585,-0.347009,0.002771,0.000096,0.000001,0.000000 166.3539,16.0968,16.27,-15.00,False UCAC4 531-040663,7.43893660,16.1431758,0.00,11.95,0.00,0.0,0,,7.46116546,16.0967647,0.90,0.00,0,0,0 584,Semiramis,12.23,53.8,1.5763,0,0,-1.922,-1.94,,2.8,0 0,88.5234,2023,2,8,85.2914,282.0140,10.7203,0.23368,2.37335,1.81874,8.58,5.0,0.15 1.115,0.0137,0.0025,107,0.0054,Known errors,-1.00,-1,-1,-1 20230208_040663,59926.02 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Dec 13, 00:25 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org