IOTA/IOTA-ES occultation update for (468) Lina / UCAC4-564-038276 event on 2022 Dec 04, 18:32 UT Visible from Australia Summary ------- On 2022 Dec 04 UT, the 61.7 km diameter asteroid (468) Lina will occult a 12.3 mag star in the constellation Gemini for observers along a path across Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.58 mag to 14.77 mag (the magnitude of the asteroid) for at most 6.750 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: 2022 Dec 04, 18:24 - 2022 Dec 04, 18:40 * geocentric midpoint of event [JD]: 2459918.27245250 * magnitude of target star: 12.30 * magnitude drop [mag]: 2.58 * estimated maximum duration [s]: 6.750 * Moon: 89 % sunlit, 74° distance * Sun: 144° distance * rough path description: Australia Additional comments ------------------- RUWE high The occultation path -------------------- * approximate projected width [km]: 95 * 1 sigma uncertainty interval [path widths]: +/- 0.04 * 1 sigma uncertainty interval [seconds]: +/- 3.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.019, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.002", 98°) * approx speed of asteroid's shadow [km/s]: 9.1472 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4-564-038276 by 468 Lina on 2022 Dec 4 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 45 0 0 -36 54 9 18 39 52.9 0 61 -23 -36 24 30 .. .. .. -36 21 58 .. .. .. .... 46 0 0 -36 27 46 18 39 52.7 1 60 -24 -35 58 15 -36 57 37 -35 55 44 -37 0 11 0.46 47 0 0 -36 1 47 18 39 52.3 2 60 -25 -35 32 25 -36 31 29 -35 29 54 -36 34 3 0.80 48 0 0 -35 36 12 18 39 51.6 3 59 -26 -35 6 59 -36 5 46 -35 4 29 -36 8 19 0.93 49 0 0 -35 11 4 18 39 50.6 4 59 -27 -34 41 59 -35 40 28 -34 39 30 -35 43 1 0.99 50 0 0 -34 46 21 18 39 49.4 5 58 -27 -34 17 25 -35 15 38 -34 14 56 -35 18 10 1.03 51 0 0 -34 22 6 18 39 47.8 6 58 -28 -33 53 17 -34 51 14 -33 50 50 -34 53 45 1.06 52 0 0 -33 58 18 18 39 46.1 7 57 -29 -33 29 37 -34 27 17 -33 27 10 -34 29 48 1.08 53 0 0 -33 34 57 18 39 44.0 7 56 -30 -33 6 25 -34 3 49 -33 3 58 -34 6 18 1.09 54 0 0 -33 12 5 18 39 41.7 8 56 -30 -32 43 40 -33 40 48 -32 41 14 -33 43 17 1.10 55 0 0 -32 49 42 18 39 39.1 9 55 -31 -32 21 24 -33 18 17 -32 18 59 -33 20 46 1.11 56 0 0 -32 27 47 18 39 36.3 10 55 -32 -31 59 37 -32 56 15 -31 57 13 -32 58 43 1.12 57 0 0 -32 6 23 18 39 33.2 11 54 -32 -31 38 20 -32 34 43 -31 35 56 -32 37 10 1.13 58 0 0 -31 45 28 18 39 29.8 12 54 -33 -31 17 32 -32 13 41 -31 15 9 -32 16 7 1.13 59 0 0 -31 25 3 18 39 26.2 13 53 -33 -30 57 15 -31 53 9 -30 54 52 -31 55 35 1.14 60 0 0 -31 5 10 18 39 22.4 14 53 -34 -30 37 28 -31 33 8 -30 35 6 -31 35 34 1.14 61 0 0 -30 45 47 18 39 18.3 14 52 -35 -30 18 11 -31 13 39 -30 15 50 -31 16 3 1.14 62 0 0 -30 26 55 18 39 14.0 15 51 -35 -29 59 26 -30 54 40 -29 57 5 -30 57 4 1.14 63 0 0 -30 8 34 18 39 9.4 16 51 -36 -29 41 12 -30 36 13 -29 38 51 -30 38 36 1.15 64 0 0 -29 50 45 18 39 4.6 17 50 -36 -29 23 29 -30 18 18 -29 21 9 -30 20 41 1.15 65 0 0 -29 33 28 18 38 59.6 18 50 -37 -29 6 18 -30 0 55 -29 3 59 -30 3 17 1.15 66 0 0 -29 16 43 18 38 54.3 19 49 -37 -28 49 39 -29 44 4 -28 47 20 -29 46 26 1.15 67 0 0 -29 0 31 18 38 48.8 20 48 -38 -28 33 32 -29 27 45 -28 31 13 -29 30 7 1.15 68 0 0 -28 44 50 18 38 43.1 20 48 -38 -28 17 57 -29 12 0 -28 15 39 -29 14 20 1.15 69 0 0 -28 29 43 18 38 37.2 21 47 -39 -28 2 54 -28 56 47 -28 0 37 -28 59 7 1.16 70 0 0 -28 15 8 18 38 31.1 22 47 -39 -27 48 24 -28 42 6 -27 46 7 -28 44 26 1.16 71 0 0 -28 1 6 18 38 24.8 23 46 -39 -27 34 27 -28 27 59 -27 32 10 -28 30 19 1.16 72 0 0 -27 47 36 18 38 18.3 23 45 -40 -27 21 2 -28 14 25 -27 18 46 -28 16 44 1.16 73 0 0 -27 34 40 18 38 11.6 24 45 -40 -27 8 11 -28 1 24 -27 5 55 -28 3 43 1.16 74 0 0 -27 22 17 18 38 4.7 25 44 -40 -26 55 52 -27 48 57 -26 53 36 -27 51 15 1.16 75 0 0 -27 10 27 18 37 57.6 26 43 -41 -26 44 6 -27 37 3 -26 41 51 -27 39 21 1.16 76 0 0 -26 59 11 18 37 50.3 26 43 -41 -26 32 53 -27 25 42 -26 30 39 -27 28 0 1.16 77 0 0 -26 48 27 18 37 42.9 27 42 -41 -26 22 14 -27 14 55 -26 19 59 -27 17 12 1.16 78 0 0 -26 38 17 18 37 35.3 28 41 -41 -26 12 8 -27 4 42 -26 9 53 -27 6 59 1.16 79 0 0 -26 28 41 18 37 27.5 29 40 -41 -26 2 35 -26 55 2 -26 0 21 -26 57 18 1.16 80 0 0 -26 19 38 18 37 19.6 29 40 -41 -25 53 35 -26 45 56 -25 51 21 -26 48 12 1.16 81 0 0 -26 11 9 18 37 11.5 30 39 -42 -25 45 8 -26 37 23 -25 42 55 -26 39 39 1.16 82 0 0 -26 3 13 18 37 3.2 31 38 -42 -25 37 15 -26 29 24 -25 35 2 -26 31 40 1.16 83 0 0 -25 55 50 18 36 54.8 31 37 -42 -25 29 55 -26 21 59 -25 27 42 -26 24 15 1.16 84 0 0 -25 49 2 18 36 46.3 32 37 -42 -25 23 9 -26 15 8 -25 20 56 -26 17 23 1.16 85 0 0 -25 42 46 18 36 37.6 32 36 -42 -25 16 56 -26 8 50 -25 14 43 -26 11 5 1.16 86 0 0 -25 37 5 18 36 28.8 33 35 -42 -25 11 16 -26 3 7 -25 9 4 -26 5 21 1.16 87 0 0 -25 31 56 18 36 19.8 34 34 -42 -25 6 10 -25 57 56 -25 3 58 -26 0 11 1.16 88 0 0 -25 27 22 18 36 10.7 34 33 -41 -25 1 37 -25 53 20 -24 59 25 -25 55 35 1.16 89 0 0 -25 23 21 18 36 1.5 35 32 -41 -24 57 38 -25 49 18 -24 55 26 -25 51 32 1.16 90 0 0 -25 19 53 18 35 52.2 35 31 -41 -24 54 12 -25 45 49 -24 52 0 -25 48 3 1.16 91 0 0 -25 16 59 18 35 42.8 36 31 -41 -24 51 19 -25 42 54 -24 49 7 -25 45 8 1.16 92 0 0 -25 14 39 18 35 33.3 36 30 -41 -24 48 59 -25 40 32 -24 46 47 -25 42 46 1.16 93 0 0 -25 12 52 18 35 23.7 37 29 -41 -24 47 13 -25 38 44 -24 45 1 -25 40 58 1.16 94 0 0 -25 11 38 18 35 14.0 37 28 -40 -24 46 0 -25 37 30 -24 43 48 -25 39 44 1.16 95 0 0 -25 10 58 18 35 4.2 37 27 -40 -24 45 20 -25 36 50 -24 43 9 -25 39 4 1.16 96 0 0 -25 10 51 18 34 54.3 38 26 -40 -24 45 14 -25 36 43 -24 43 2 -25 38 57 1.16 97 0 0 -25 11 18 18 34 44.3 38 25 -39 -24 45 40 -25 37 9 -24 43 29 -25 39 23 1.16 98 0 0 -25 12 18 18 34 34.3 38 24 -39 -24 46 40 -25 38 9 -24 44 28 -25 40 23 1.16 99 0 0 -25 13 51 18 34 24.1 39 23 -39 -24 48 13 -25 39 43 -24 46 1 -25 41 57 1.16 100 0 0 -25 15 57 18 34 14.0 39 22 -38 -24 50 19 -25 41 49 -24 48 7 -25 44 4 1.16 101 0 0 -25 18 37 18 34 3.7 39 20 -38 -24 52 57 -25 44 30 -24 50 46 -25 46 44 1.16 102 0 0 -25 21 50 18 33 53.4 40 19 -38 -24 56 9 -25 47 43 -24 53 57 -25 49 58 1.16 103 0 0 -25 25 35 18 33 43.1 40 18 -37 -24 59 54 -25 51 30 -24 57 42 -25 53 44 1.16 104 0 0 -25 29 54 18 33 32.7 40 17 -37 -25 4 12 -25 55 50 -25 2 0 -25 58 5 1.16 105 0 0 -25 34 46 18 33 22.2 40 16 -36 -25 9 2 -26 0 43 -25 6 50 -26 2 58 1.16 106 0 0 -25 40 10 18 33 11.8 40 15 -36 -25 14 25 -26 6 10 -25 12 13 -26 8 24 1.16 107 0 0 -25 46 8 18 33 1.3 40 14 -35 -25 20 21 -26 12 9 -25 18 8 -26 14 24 1.17 108 0 0 -25 52 38 18 32 50.7 40 13 -35 -25 26 49 -26 18 41 -25 24 37 -26 20 56 1.17 109 0 0 -25 59 41 18 32 40.2 41 11 -34 -25 33 50 -26 25 47 -25 31 37 -26 28 2 1.17 110 0 0 -26 7 17 18 32 29.6 41 10 -33 -25 41 23 -26 33 24 -25 39 10 -26 35 40 1.17 111 0 0 -26 15 25 18 32 19.1 41 9 -33 -25 49 29 -26 41 35 -25 47 16 -26 43 51 1.17 112 0 0 -26 24 5 18 32 8.5 41 8 -32 -25 58 7 -26 50 18 -25 55 53 -26 52 34 1.17 113 0 0 -26 33 18 18 31 57.9 41 7 -32 -26 7 17 -26 59 34 -26 5 3 -27 1 50 1.17 114 0 0 -26 43 4 18 31 47.3 40 6 -31 -26 16 59 -27 9 22 -26 14 45 -27 11 39 1.17 115 0 0 -26 53 21 18 31 36.8 40 4 -30 -26 27 13 -27 19 43 -26 24 59 -27 22 0 1.17 116 0 0 -27 4 10 18 31 26.2 40 3 -30 -26 37 59 -27 30 36 -26 35 45 -27 32 53 1.17 117 0 0 -27 15 32 18 31 15.7 40 2 -29 -26 49 17 -27 42 1 -26 47 2 -27 44 18 1.17 118 0 0 -27 27 25 18 31 5.2 40 1 -28 -27 1 7 -27 53 58 -26 58 52 -27 56 16 1.17 119 0 0 -27 39 50 18 30 54.8 40 360 -27 -27 13 28 -28 6 27 -27 11 12 -28 8 45 1.17 120 0 0 -27 52 46 18 30 44.3 39 359 -27 -27 26 20 -28 19 28 -27 24 4 -28 21 46 1.17 121 0 0 -28 6 14 18 30 34.0 39 357 -26 -27 39 44 -28 33 0 -27 37 28 -28 35 19 1.17 122 0 0 -28 20 14 18 30 23.6 39 356 -25 -27 53 38 -28 47 4 -27 51 22 -28 49 23 1.17 123 0 0 -28 34 44 18 30 13.4 39 355 -24 -28 8 4 -29 1 39 -28 5 47 -29 3 58 1.18 124 0 0 -28 49 45 18 30 3.2 38 354 -24 -28 23 1 -29 16 45 -28 20 43 -29 19 5 1.18 125 0 0 -29 5 17 18 29 53.0 38 353 -23 -28 38 28 -29 32 22 -28 36 10 -29 34 42 1.18 126 0 0 -29 21 19 18 29 43.0 38 352 -22 -28 54 25 -29 48 30 -28 52 7 -29 50 51 1.18 127 0 0 -29 37 52 18 29 33.0 37 351 -21 -29 10 52 -30 5 8 -29 8 34 -30 7 29 1.18 128 0 0 -29 54 55 18 29 23.1 37 350 -21 -29 27 50 -30 22 17 -29 25 31 -30 24 38 1.18 129 0 0 -30 12 28 18 29 13.3 36 349 -20 -29 45 17 -30 39 55 -29 42 58 -30 42 18 1.18 130 0 0 -30 30 30 18 29 3.6 36 348 -19 -30 3 14 -30 58 4 -30 0 54 -31 0 26 1.18 131 0 0 -30 49 2 18 28 54.0 35 347 -18 -30 21 39 -31 16 41 -30 19 19 -31 19 5 1.18 132 0 0 -31 8 3 18 28 44.5 35 346 -17 -30 40 34 -31 35 49 -30 38 13 -31 38 13 1.18 133 0 0 -31 27 33 18 28 35.1 34 345 -16 -30 59 58 -31 55 25 -30 57 36 -31 57 49 1.19 134 0 0 -31 47 31 18 28 25.8 34 344 -16 -31 19 49 -32 15 30 -31 17 27 -32 17 55 1.19 135 0 0 -32 7 57 18 28 16.6 33 343 -15 -31 40 9 -32 36 3 -31 37 46 -32 38 29 1.19 136 0 0 -32 28 51 18 28 7.6 33 342 -14 -32 0 56 -32 57 4 -31 58 33 -32 59 30 1.19 137 0 0 -32 50 13 18 27 58.8 32 341 -13 -32 22 11 -33 18 33 -32 19 47 -33 21 0 1.19 138 0 0 -33 12 2 18 27 50.0 31 340 -12 -32 43 53 -33 40 29 -32 41 29 -33 42 56 1.19 139 0 0 -33 34 17 18 27 41.5 31 339 -11 -33 6 1 -34 2 52 -33 3 36 -34 5 20 1.19 140 0 0 -33 56 59 18 27 33.0 30 338 -10 -33 28 36 -34 25 41 -33 26 10 -34 28 10 1.19 141 0 0 -34 20 7 18 27 24.8 30 337 -10 -33 51 36 -34 48 56 -33 49 10 -34 51 26 1.19 142 0 0 -34 43 40 18 27 16.7 29 336 -9 -34 15 1 -35 12 37 -34 12 34 -35 15 7 1.19 143 0 0 -35 7 37 18 27 8.7 28 336 -8 -34 38 51 -35 36 43 -34 36 24 -35 39 14 1.20 144 0 0 -35 31 59 18 27 1.0 28 335 -7 -35 3 5 -36 1 13 -35 0 37 -36 3 45 1.20 145 0 0 -35 56 45 18 26 53.4 27 334 -6 -35 27 43 -36 26 7 -35 25 14 -36 28 39 1.20 146 0 0 -36 21 54 18 26 46.0 26 333 -5 -35 52 44 -36 51 24 -35 50 15 -36 53 57 1.20 147 0 0 -36 47 26 18 26 38.8 25 332 -4 -36 18 8 -37 17 4 -36 15 38 -37 19 38 1.20 148 0 0 -37 13 20 18 26 31.8 25 331 -3 -36 43 53 -37 43 7 -36 41 22 -37 45 41 1.20 149 0 0 -37 39 35 18 26 25.0 24 331 -3 -37 10 0 -38 9 31 -37 7 29 -38 12 6 1.20 150 0 0 -38 6 11 18 26 18.4 23 330 -2 -37 36 28 -38 36 15 -37 33 56 -38 38 51 1.20 151 0 0 -38 33 7 18 26 12.1 22 329 -1 -38 3 15 -39 3 20 -38 0 42 -39 5 57 1.20 152 0 0 -39 0 22 18 26 5.9 22 328 0 -38 30 22 -39 30 44 -38 27 48 -39 33 21 1.21 153 0 0 -39 27 55 18 26 0.0 21 328 1 -38 57 47 -39 58 26 -38 55 13 -40 1 4 1.21 154 0 0 -39 55 47 18 25 54.2 20 327 2 -39 25 30 -40 26 26 -39 22 54 -40 29 5 1.21 155 0 0 -40 23 55 18 25 48.7 19 326 3 -39 53 29 -40 54 43 -39 50 53 -40 57 23 1.21 156 0 0 -40 52 19 18 25 43.5 18 325 4 -40 21 45 -41 23 16 -40 19 8 -41 25 57 1.21 157 0 0 -41 20 58 18 25 38.4 17 324 5 -40 50 16 -41 52 4 -40 47 38 -41 54 46 1.21 158 0 0 -41 49 52 18 25 33.6 17 324 5 -41 19 0 -42 21 6 -41 16 22 -42 23 49 1.21 159 0 0 -42 18 58 18 25 29.1 16 323 6 -41 47 59 -42 50 22 -41 45 20 -42 53 5 1.21 160 0 0 -42 48 18 18 25 24.7 15 322 7 -42 17 10 -43 19 50 -42 14 30 -43 22 34 1.22 161 0 0 -43 17 48 18 25 20.6 14 322 8 -42 46 32 -43 49 29 -42 43 52 -43 52 14 1.22 162 0 0 -43 47 29 18 25 16.8 13 321 9 -43 16 4 -44 19 19 -43 13 23 -44 22 4 1.22 163 0 0 -44 17 19 18 25 13.2 13 320 10 -43 45 46 -44 49 17 -43 43 5 -44 52 4 1.22 164 0 0 -44 47 18 18 25 9.8 12 319 11 -44 15 37 -45 19 24 -44 12 54 -45 22 11 1.22 165 0 0 -45 17 23 18 25 6.7 11 319 11 -44 45 34 -45 49 38 -44 42 52 -45 52 26 1.22 166 0 0 -45 47 35 18 25 3.8 10 318 12 -45 15 38 -46 19 58 -45 12 55 -46 22 46 1.23 167 0 0 -46 17 51 18 25 1.2 9 317 13 -45 45 47 -46 50 22 -45 43 3 -46 53 11 1.23 168 0 0 -46 48 12 18 24 58.8 8 316 14 -46 16 0 -47 20 50 -46 13 15 -47 23 40 1.23 169 0 0 -47 18 35 18 24 56.6 8 316 15 -46 46 16 -47 51 21 -46 43 31 -47 54 12 1.23 170 0 0 -47 49 0 18 24 54.7 7 315 15 -47 16 34 -48 21 53 -47 13 48 -48 24 44 1.24 171 0 0 -48 19 25 18 24 53.0 6 314 16 -47 46 53 -48 52 25 -47 44 6 -48 55 17 1.24 172 0 0 -48 49 49 18 24 51.6 5 313 17 -48 17 10 -49 22 56 -48 14 23 -49 25 49 1.25 173 0 0 -49 20 12 18 24 50.4 4 313 18 -48 47 26 -49 53 25 -48 44 39 -49 56 18 1.26 174 0 0 -49 50 31 18 24 49.4 3 312 18 -49 17 40 -50 23 50 -49 14 51 -50 26 44 1.27 175 0 0 -50 20 46 18 24 48.6 3 311 19 -49 47 49 -50 54 11 -49 45 0 -50 57 5 1.29 176 0 0 -50 50 55 18 24 48.1 2 310 20 -50 17 53 -51 24 26 -50 15 4 -51 27 20 1.32 177 0 0 -51 20 58 18 24 47.8 1 310 21 -50 47 51 -51 54 34 -50 45 1 -51 57 28 1.42 178 0 0 -51 50 52 18 24 47.6 0 309 21 -51 17 41 .. .. .. -51 14 51 .. .. .. 2.47 Uncertainty in time = +/- 4 secs Prediction of 2022 Dec 1.1 Data for the target star ------------------------ * name: UCAC4-564-038276 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 18 59.2943 DE: +22 47 07.660 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 18 59.2944 DE: +22 47 07.660 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.400,0.400) * V mag [mag]: 12.3 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (468) Lina asteroid class: approx. diameter [km]: 62 approx. diameter ["]: 0.037 distance from Earth [AU]: 2.30930 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#59 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): 0.019", 0.002", 98.049° remarks: * orbital elements for (468)Lina : Mean anomaly = 81.4229352988 deg Arg. of pericenter = 332.2516227410 deg Long. of node = 21.4845607753 deg Inclination = 0.4362977709 deg Eccentricity = 0.1960533061 Semimajor axis = 3.1327628253 AU Perihelion dist = 2.5185743162 AU Mag: H = 9.77, G = 0.15 Epoch of elements : MJD 59917.77256944 TDT (2022 Dec 04.7726) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#592022Nov22,6.75,2022,12,4,18.538860,-0.117738,-0.749347,-5.100474,0.800608,-0.003467,0.000429,0.000001,0.000000 118.4584,22.7435,-100.51,-22.30,False UCAC4-564-038276,7.31647064,22.7854610,0.00,12.30,0.00,0.0,0,,7.33951981,22.7434502,2.58,0.00,0,0,0 468,Lina,14.77,61.7,2.3093,0,0,-1.404,3.05,,3.4,0 0,81.2856,2022,12,4,332.2516,21.4846,0.4363,0.19605,3.13276,2.51857,9.79,5.0,0.15 1.043,0.0193,0.0016,98,0.0016,Known errors,-1.00,-1,-1,-1 20221204_038276,59914.08 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Dec 01, 01:57 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org