IOTA/IOTA-ES occultation update for (5438) Lorre / TYC 4916-00646-1 event on 2024 Nov 26, 11:03 UT Visible from Summary ------- On 2024 Nov 26 UT, the 27.6616539550572 km diameter asteroid (5438) Lorre will occult a 8.3 mag star in the constellation Sextans for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.98 mag to 16.30 mag (the magnitude of the asteroid) for at most 0.970 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: 2024 Nov 26, 10:59 - 2024 Nov 26, 11:06 * geocentric midpoint of event [JD]: 2460640.96051130 * magnitude of target star: 8.32 * magnitude drop [mag]: 7.98 * estimated maximum duration [s]: 0.970 * Moon: 20 % sunlit, 27° distance * Sun: 80° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 34 * 1 sigma uncertainty interval [path widths]: +/- 0.18 * 1 sigma uncertainty interval [seconds]: +/- 1.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.018) * 1 sigma uncertainty ellipse (major, minor, PA): (0.025", 0.003", 134°) * approx speed of asteroid's shadow [km/s]: 28.5973 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 4916-00646-1 by 5438 Lorre on 2024 Nov 26 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 -108 0 0 79 55 43 11 0 5.2 5 140 -26 79 42 36 80 8 53 79 37 55 80 13 37 .... -107 0 0 79 44 20 11 0 5.3 5 141 -26 79 31 1 79 57 42 79 26 15 80 2 30 -0.64 -106 0 0 79 32 24 11 0 5.4 5 142 -26 79 18 52 79 45 59 79 14 3 79 50 51 -0.64 -105 0 0 79 19 53 11 0 5.6 6 143 -25 79 6 9 79 33 41 79 1 15 79 38 38 -0.64 -104 0 0 79 6 46 11 0 5.7 6 144 -25 78 52 48 79 20 47 78 47 49 79 25 49 -0.64 -103 0 0 78 52 59 11 0 5.9 6 145 -25 78 38 48 79 7 15 78 33 44 79 12 22 -0.64 -102 0 0 78 38 32 11 0 6.0 7 146 -25 78 24 7 78 53 2 78 18 58 78 58 14 -0.64 -101 0 0 78 23 21 11 0 6.2 7 147 -25 78 8 41 78 38 6 78 3 27 78 43 23 -0.64 -100 0 0 78 7 24 11 0 6.4 7 148 -25 77 52 29 78 22 24 77 47 9 78 27 47 -0.64 - 99 0 0 77 50 39 11 0 6.6 8 149 -25 77 35 27 78 5 54 77 30 2 78 11 23 -0.64 - 98 0 0 77 33 1 11 0 6.8 8 150 -25 77 17 33 77 48 33 77 12 3 77 54 8 -0.65 - 97 0 0 77 14 28 11 0 7.1 8 151 -25 76 58 44 77 30 17 76 53 8 77 35 58 -0.65 - 96 0 0 76 54 57 11 0 7.4 9 152 -24 76 38 56 77 11 3 76 33 13 77 16 51 -0.65 - 95 0 0 76 34 24 11 0 7.7 9 153 -24 76 18 6 76 50 48 76 12 17 76 56 42 -0.65 - 94 0 0 76 12 45 11 0 8.0 10 154 -24 75 56 9 76 29 28 75 50 14 76 35 28 -0.65 - 93 0 0 75 49 57 11 0 8.4 10 155 -24 75 33 2 76 6 58 75 27 1 76 13 5 -0.65 - 92 0 0 75 25 55 11 0 8.8 11 156 -24 75 8 41 75 43 15 75 2 33 75 49 29 -0.65 - 91 0 0 75 0 34 11 0 9.2 11 157 -24 74 43 2 75 18 13 74 36 46 75 24 34 -0.65 - 90 0 0 74 33 50 11 0 9.7 12 158 -23 74 15 58 74 51 49 74 9 36 74 58 17 -0.65 - 89 0 0 74 5 38 11 0 10.2 12 159 -23 73 47 27 74 23 57 73 40 58 74 30 33 -0.65 - 88 0 0 73 35 53 11 0 10.8 13 160 -23 73 17 22 73 54 32 73 10 46 74 1 15 -0.65 - 87 0 0 73 4 29 11 0 11.4 13 161 -23 72 45 38 73 23 29 72 38 56 73 30 19 -0.65 - 86 0 0 72 31 22 11 0 12.1 14 162 -22 72 12 11 72 50 42 72 5 21 72 57 39 -0.65 - 85 0 0 71 56 24 11 0 12.8 15 163 -22 71 36 54 72 16 4 71 29 57 72 23 9 -0.65 - 84 0 0 71 19 32 11 0 13.7 15 164 -22 70 59 42 71 39 32 70 52 39 71 46 44 -0.65 - 83 0 0 70 40 38 11 0 14.6 16 165 -21 70 20 30 71 0 58 70 13 19 71 8 17 -0.65 - 82 0 0 69 59 38 11 0 15.6 17 165 -21 69 39 11 70 20 17 69 31 54 70 27 43 -0.65 - 81 0 0 69 16 26 11 0 16.7 17 166 -21 68 55 40 69 37 23 68 48 17 69 44 56 -0.65 - 80 0 0 68 30 56 11 0 17.9 18 167 -20 68 9 53 68 52 11 68 2 24 68 59 51 -0.65 - 79 0 0 67 43 4 11 0 19.2 19 168 -20 67 21 45 68 4 36 67 14 10 68 12 21 -0.65 - 78 0 0 66 52 45 11 0 20.7 20 170 -19 66 31 11 67 14 32 66 23 31 67 22 23 -0.65 - 77 0 0 65 59 54 11 0 22.3 21 171 -19 65 38 7 66 21 56 65 30 22 66 29 52 -0.65 - 76 0 0 65 4 30 11 0 24.0 22 172 -18 64 42 30 65 26 44 64 34 41 65 34 45 -0.65 - 75 0 0 64 6 29 11 0 25.9 23 173 -17 63 44 18 64 28 54 63 36 25 64 36 59 -0.65 - 74 0 0 63 5 50 11 0 28.0 24 174 -17 62 43 30 63 28 24 62 35 34 63 36 32 -0.65 - 73 0 0 62 2 32 11 0 30.2 25 175 -16 61 40 6 62 25 13 61 32 7 62 33 24 -0.65 - 72 0 0 60 56 37 11 0 32.7 26 176 -15 60 34 5 61 19 23 60 26 5 61 27 36 -0.65 - 71 0 0 59 48 5 11 0 35.3 27 177 -14 59 25 31 60 10 55 59 17 30 60 19 8 -0.65 - 70 0 0 58 37 2 11 0 38.2 29 178 -14 58 14 27 58 59 52 58 6 25 59 8 6 -0.65 - 69 0 0 57 23 30 11 0 41.2 30 179 -13 57 0 56 57 46 18 56 52 55 57 54 32 -0.65 - 68 0 0 56 7 36 11 0 44.5 31 180 -12 55 45 6 56 30 20 55 37 6 56 38 33 -0.66 - 67 0 0 54 49 26 11 0 48.0 32 182 -11 54 27 2 55 12 5 54 19 4 55 20 15 -0.66 - 66 0 0 53 29 10 11 0 51.8 34 183 -10 53 6 53 53 51 41 52 58 58 53 59 48 -0.66 - 65 0 0 52 6 56 11 0 55.8 35 184 -9 51 44 48 52 29 17 51 36 57 52 37 21 -0.66 - 64 0 0 50 42 55 11 1 0.0 36 185 -7 50 20 58 51 5 4 50 13 10 51 13 4 -0.66 - 63 0 0 49 17 17 11 1 4.4 38 187 -6 48 55 33 49 39 14 48 47 50 49 47 8 -0.66 - 62 0 0 47 50 14 11 1 9.1 39 188 -5 47 28 45 48 11 56 47 21 6 48 19 45 -0.66 - 61 0 0 46 21 58 11 1 14.0 40 190 -4 46 0 45 46 43 24 45 53 12 46 51 8 -0.66 - 60 0 0 44 52 42 11 1 19.1 42 191 -2 44 31 45 45 13 51 44 24 18 45 21 28 -0.66 - 59 0 0 43 22 38 11 1 24.4 43 193 -1 43 1 59 43 43 29 42 54 38 43 50 59 -0.66 - 58 0 0 41 51 58 11 1 29.9 44 195 0 41 31 37 42 12 30 41 24 22 42 19 54 -0.66 - 57 0 0 40 20 55 11 1 35.5 46 197 2 40 0 52 40 41 8 39 53 44 40 48 24 -0.66 - 56 0 0 38 49 40 11 1 41.3 47 198 3 38 29 57 39 9 33 38 22 56 39 16 42 -0.66 - 55 0 0 37 18 25 11 1 47.2 48 201 5 36 59 1 37 37 57 36 52 7 37 45 0 -0.66 - 54 0 0 35 47 21 11 1 53.3 49 203 6 35 28 17 36 6 33 35 21 30 36 13 28 -0.66 - 53 0 0 34 16 38 11 1 59.5 50 205 8 33 57 55 34 35 30 33 51 15 34 42 17 -0.67 - 52 0 0 32 46 27 11 2 5.8 51 207 9 32 28 3 33 4 58 32 21 30 33 11 38 -0.67 - 51 0 0 31 16 56 11 2 12.1 52 210 11 30 58 52 31 35 7 30 52 26 31 41 40 -0.67 - 50 0 0 29 48 14 11 2 18.5 53 212 12 29 30 30 30 6 5 29 24 11 30 12 30 -0.67 - 49 0 0 28 20 29 11 2 24.9 54 215 14 28 3 4 28 38 0 27 56 52 28 44 18 -0.67 - 48 0 0 26 53 47 11 2 31.4 54 217 15 26 36 42 27 10 59 26 30 36 27 17 10 -0.67 - 47 0 0 25 28 16 11 2 37.9 55 220 17 25 11 29 25 45 8 25 5 30 25 51 12 -0.67 - 46 0 0 24 4 0 11 2 44.4 55 223 18 23 47 32 24 20 34 23 41 39 24 26 31 -0.67 - 45 0 0 22 41 5 11 2 50.8 56 226 20 22 24 55 22 57 21 22 19 9 23 3 11 -0.67 - 44 0 0 21 19 35 11 2 57.2 56 228 22 21 3 43 21 35 33 20 58 3 21 41 17 -0.67 - 43 0 0 19 59 35 11 3 3.6 56 231 23 19 43 59 20 15 15 19 38 25 20 20 53 -0.67 - 42 0 0 18 41 6 11 3 9.9 56 234 25 18 25 47 18 56 30 18 20 20 19 2 2 -0.68 - 41 0 0 17 24 13 11 3 16.1 56 236 26 17 9 10 17 39 20 17 3 48 17 44 46 -0.68 - 40 0 0 16 8 56 11 3 22.3 56 239 28 15 54 9 16 23 48 15 48 52 16 29 8 -0.68 - 39 0 0 14 55 19 11 3 28.4 55 242 29 14 40 47 15 9 55 14 35 35 15 15 9 -0.68 - 38 0 0 13 43 21 11 3 34.4 55 244 31 13 29 4 13 57 42 13 23 58 14 2 52 -0.68 - 37 0 0 12 33 5 11 3 40.3 55 246 32 12 19 2 12 47 12 12 14 1 12 52 16 -0.68 - 36 0 0 11 24 31 11 3 46.1 54 249 34 11 10 42 11 38 24 11 5 46 11 43 23 -0.68 - 35 0 0 10 17 39 11 3 51.8 54 251 35 10 4 3 10 31 18 9 59 11 10 36 12 -0.68 - 34 0 0 9 12 29 11 3 57.3 53 253 37 8 59 6 9 25 56 8 54 19 9 30 45 -0.68 - 33 0 0 8 9 2 11 4 2.8 52 255 38 7 55 51 8 22 16 7 51 8 8 27 1 -0.68 - 32 0 0 7 7 16 11 4 8.1 52 256 39 6 54 17 7 20 18 6 49 38 7 24 58 -0.68 - 31 0 0 6 7 11 11 4 13.3 51 258 41 5 54 23 6 20 1 5 49 49 6 24 38 -0.68 - 30 0 0 5 8 47 11 4 18.4 50 259 42 4 56 10 5 21 26 4 51 40 5 25 58 -0.69 - 29 0 0 4 12 2 11 4 23.4 49 261 44 3 59 36 4 24 30 3 55 10 4 28 59 -0.69 - 28 0 0 3 16 56 11 4 28.2 48 262 45 3 4 40 3 29 14 3 0 17 3 33 38 -0.69 - 27 0 0 2 23 27 11 4 32.9 47 263 46 2 11 21 2 35 35 2 7 2 2 39 56 -0.69 - 26 0 0 1 31 34 11 4 37.5 47 264 48 1 19 38 1 43 32 1 15 22 1 47 50 -0.69 - 25 0 0 0 41 16 11 4 41.9 46 265 49 0 29 29 0 53 5 0 25 16 0 57 20 -0.69 - 24 0 0 - 0 7 28 11 4 46.2 45 266 50 - 0 19 6 0 4 12 - 0 23 16 0 8 24 -0.69 - 23 0 0 - 0 54 40 11 4 50.4 44 267 51 - 1 6 10 - 0 43 8 - 1 10 16 - 0 39 0 -0.69 - 22 0 0 - 1 40 21 11 4 54.5 43 268 53 - 1 51 43 - 1 28 57 - 1 55 47 - 1 24 52 -0.69 - 21 0 0 - 2 24 33 11 4 58.5 42 268 54 - 2 35 47 - 2 13 17 - 2 39 48 - 2 9 15 -0.69 - 20 0 0 - 3 7 17 11 5 2.3 41 269 55 - 3 18 23 - 2 56 8 - 3 22 22 - 2 52 9 -0.69 - 19 0 0 - 3 48 34 11 5 6.0 40 269 56 - 3 59 33 - 3 37 33 - 4 3 29 - 3 33 36 -0.69 - 18 0 0 - 4 28 26 11 5 9.6 39 270 58 - 4 39 19 - 4 17 32 - 4 43 12 - 4 13 38 -0.69 - 17 0 0 - 5 6 55 11 5 13.1 38 270 59 - 5 17 41 - 4 56 7 - 5 21 32 - 4 52 15 -0.69 - 16 0 0 - 5 44 1 11 5 16.4 37 271 60 - 5 54 41 - 5 33 20 - 5 58 29 - 5 29 30 -0.69 - 15 0 0 - 6 19 46 11 5 19.6 36 271 61 - 6 30 20 - 6 9 11 - 6 34 6 - 6 5 24 -0.69 - 14 0 0 - 6 54 12 11 5 22.8 35 271 62 - 7 4 40 - 6 43 43 - 7 8 24 - 6 39 58 -0.69 - 13 0 0 - 7 27 20 11 5 25.8 34 272 63 - 7 37 42 - 7 16 57 - 7 41 25 - 7 13 13 -0.69 - 12 0 0 - 7 59 11 11 5 28.7 33 272 65 - 8 9 28 - 7 48 53 - 8 13 8 - 7 45 11 -0.69 - 11 0 0 - 8 29 46 11 5 31.5 32 272 66 - 8 39 58 - 8 19 33 - 8 43 37 - 8 15 53 -0.69 - 10 0 0 - 8 59 7 11 5 34.2 31 272 67 - 9 9 14 - 8 48 59 - 9 12 51 - 8 45 21 -0.70 - 9 0 0 - 9 27 15 11 5 36.8 30 272 68 - 9 37 18 - 9 17 12 - 9 40 53 - 9 13 35 -0.70 - 8 0 0 - 9 54 11 11 5 39.3 29 272 69 -10 4 9 - 9 44 12 -10 7 43 - 9 40 38 -0.70 - 7 0 0 -10 19 57 11 5 41.6 28 272 70 -10 29 50 -10 10 2 -10 33 22 -10 6 29 -0.70 - 6 0 0 -10 44 32 11 5 43.9 27 272 71 -10 54 22 -10 34 41 -10 57 53 -10 31 10 -0.70 - 5 0 0 -11 7 59 11 5 46.1 26 272 72 -11 17 45 -10 58 12 -11 21 14 -10 54 42 -0.70 - 4 0 0 -11 30 19 11 5 48.2 25 272 73 -11 40 1 -11 20 35 -11 43 29 -11 17 6 -0.70 - 3 0 0 -11 51 31 11 5 50.2 24 272 74 -12 1 10 -11 41 51 -12 4 37 -11 38 24 -0.70 - 2 0 0 -12 11 38 11 5 52.1 23 272 75 -12 21 14 -12 2 2 -12 24 40 -11 58 35 -0.70 - 1 0 0 -12 30 41 11 5 54.0 22 272 76 -12 40 13 -12 21 7 -12 43 38 -12 17 42 -0.70 0 0 0 -12 48 39 11 5 55.7 21 272 77 -12 58 8 -12 39 8 -13 1 32 -12 35 44 -0.70 1 0 0 -13 5 34 11 5 57.3 20 272 78 -13 15 1 -12 56 6 -13 18 24 -12 52 43 -0.70 2 0 0 -13 21 27 11 5 58.9 19 271 79 -13 30 51 -13 12 1 -13 34 13 -13 8 39 -0.70 3 0 0 -13 36 18 11 6 0.4 18 271 80 -13 45 40 -13 26 55 -13 49 1 -13 23 33 -0.70 4 0 0 -13 50 8 11 6 1.7 17 271 80 -13 59 28 -13 40 47 -14 2 48 -13 37 26 -0.70 5 0 0 -14 2 58 11 6 3.0 16 271 81 -14 12 15 -13 53 39 -14 15 35 -13 50 19 -0.70 6 0 0 -14 14 48 11 6 4.3 15 271 82 -14 24 3 -14 5 31 -14 27 22 -14 2 11 -0.70 7 0 0 -14 25 38 11 6 5.4 14 271 82 -14 34 52 -14 16 23 -14 38 10 -14 13 4 -0.71 8 0 0 -14 35 30 11 6 6.4 13 270 83 -14 44 43 -14 26 17 -14 48 0 -14 22 58 -0.71 9 0 0 -14 44 24 11 6 7.4 12 270 83 -14 53 35 -14 35 12 -14 56 52 -14 31 54 -0.71 10 0 0 -14 52 20 11 6 8.3 11 270 84 -15 1 29 -14 43 9 -15 4 46 -14 39 52 -0.71 11 0 0 -14 59 18 11 6 9.1 10 270 84 -15 8 27 -14 50 9 -15 11 43 -14 46 52 -0.71 12 0 0 -15 5 20 11 6 9.9 9 269 84 -15 14 27 -14 56 11 -15 17 43 -14 52 54 -0.72 13 0 0 -15 10 24 11 6 10.5 8 269 83 -15 19 31 -15 1 16 -15 22 46 -14 58 0 -0.72 14 0 0 -15 14 32 11 6 11.1 7 269 83 -15 23 38 -15 5 25 -15 26 53 -15 2 9 -0.73 15 0 0 -15 17 44 11 6 11.6 6 269 83 -15 26 49 -15 8 37 -15 30 4 -15 5 21 -0.73 16 0 0 -15 19 59 11 6 12.1 5 268 82 -15 29 4 -15 10 53 -15 32 19 -15 7 38 -0.74 17 0 0 -15 21 19 11 6 12.4 4 268 81 -15 30 24 -15 12 13 -15 33 38 -15 8 58 -0.76 18 0 0 -15 21 43 11 6 12.7 3 268 81 -15 30 47 -15 12 37 -15 34 2 -15 9 21 -0.78 19 0 0 -15 21 10 11 6 12.9 2 268 80 -15 30 15 -15 12 5 -15 33 30 -15 8 49 -0.83 20 0 0 -15 19 43 11 6 13.0 1 267 79 -15 28 47 -15 10 37 -15 32 2 -15 7 21 -0.96 21 0 0 -15 17 19 11 6 13.1 0 267 78 -15 26 24 -15 8 13 -15 29 39 -15 4 57 -3.19 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 4916-00646-1 * constellation : Sextans * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 10 49 52.9025 DE: -02 41 50.109 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 10 49 52.9027 DE: -02 41 50.110 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 8.3 * B mag [mag]: 8.8 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (5438) Lorre asteroid class: approx. diameter [km]: 28 approx. diameter ["]: 0.019 distance from Earth [AU]: 2.03160 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#47 date of fit: 2023 Apr 27 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): 0.025", 0.003", 134.368° remarks: * orbital elements for (5438)Lorre : Mean anomaly = 338.2164799368 deg Arg. of pericenter = 239.2658042354 deg Long. of node = 298.1421916184 deg Inclination = 26.5091180362 deg Eccentricity = 0.2743845521 Semimajor axis = 2.7483232563 AU Perihelion dist = 1.9942258105 AU Mag: H = 11.93, G = 0.15 Epoch of elements : MJD 60640.46051120 TDT (2024 Nov 26.4605) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#472023Apr27,0.97,2024,11,26,11.052271,0.423324,0.365476,10.543309,-12.221877,-0.005101,0.001945,0.000000,0.000000 -68.8674,-2.8274,11.07,-21.07,False TYC 4916-00646-1,10.83136178,-2.6972523,8.77,8.32,8.08,0.1,0,,10.85241830,-2.8273719,7.98,7.78,0,0,0 5438,Lorre,16.30,27.809,2.0316,0,0,3.047,-52.91,,1.6,0 0,338.1169,2024,11,26,239.2658,298.1422,26.5091,0.27438,2.74832,1.99423,11.93,5.0,0.15 1.179,0.0253,0.0026,134,0.0034,Known errors,0.94,0,-1,-1 20241126_0646-1,60140.72 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:10 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org