IOTA/IOTA-ES occultation update for (2346) Lilio / TYC 1814-00585-1 event on 2024 Jul 26, 08:58 UT Visible from Summary ------- On 2024 Jul 26 UT, the 10.356 km diameter asteroid (2346) Lilio will occult a 10.6 mag star in the constellation Taurus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.56 mag to 17.12 mag (the magnitude of the asteroid) for at most 0.310 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 Jul 26, 08:55 - 2024 Jul 26, 09:01 * geocentric midpoint of event [JD]: 2460517.87381963 * magnitude of target star: 10.56 * magnitude drop [mag]: 6.56 * estimated maximum duration [s]: 0.310 * Moon: 70 % sunlit, 55° distance * Sun: 59° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 11 * 1 sigma uncertainty interval [path widths]: +/- 0.32 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.002", 86°) * approx speed of asteroid's shadow [km/s]: 33.4142 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1814-00585-1 by 2346 Lilio on 2024 Jul 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 - 94 0 0 -24 57 15 8 55 17.8 1 64 -54 -25 0 33 -24 53 57 -25 2 37 -24 51 53 .... - 93 0 0 -24 30 40 8 55 17.9 2 64 -53 -24 33 57 -24 27 22 -24 36 2 -24 25 17 0.14 - 92 0 0 -24 3 54 8 55 18.0 3 63 -52 -24 7 12 -24 0 36 -24 9 16 -23 58 31 0.22 - 91 0 0 -23 36 58 8 55 18.2 4 63 -52 -23 40 16 -23 33 40 -23 42 21 -23 31 35 0.25 - 90 0 0 -23 9 52 8 55 18.4 5 62 -51 -23 13 11 -23 6 34 -23 15 15 -23 4 30 0.27 - 89 0 0 -22 42 39 8 55 18.8 6 62 -50 -22 45 57 -22 39 21 -22 48 2 -22 37 16 0.28 - 88 0 0 -22 15 17 8 55 19.2 7 62 -49 -22 18 35 -22 11 59 -22 20 40 -22 9 54 0.29 - 87 0 0 -21 47 48 8 55 19.6 8 61 -48 -21 51 6 -21 44 30 -21 53 11 -21 42 25 0.30 - 86 0 0 -21 20 13 8 55 20.2 9 61 -47 -21 23 31 -21 16 54 -21 25 36 -21 14 49 0.30 - 85 0 0 -20 52 31 8 55 20.8 10 60 -46 -20 55 50 -20 49 13 -20 57 55 -20 47 8 0.31 - 84 0 0 -20 24 45 8 55 21.4 11 60 -45 -20 28 3 -20 21 27 -20 30 8 -20 19 22 0.31 - 83 0 0 -19 56 54 8 55 22.1 12 60 -44 -20 0 12 -19 53 36 -20 2 17 -19 51 31 0.31 - 82 0 0 -19 28 59 8 55 23.0 13 59 -43 -19 32 18 -19 25 41 -19 34 23 -19 23 36 0.32 - 81 0 0 -19 1 2 8 55 23.8 14 59 -42 -19 4 20 -18 57 44 -19 6 25 -18 55 39 0.32 - 80 0 0 -18 33 2 8 55 24.8 15 59 -41 -18 36 21 -18 29 44 -18 38 25 -18 27 39 0.32 - 79 0 0 -18 5 1 8 55 25.8 16 58 -40 -18 8 19 -18 1 43 -18 10 24 -17 59 38 0.32 - 78 0 0 -17 37 0 8 55 26.8 17 58 -39 -17 40 18 -17 33 42 -17 42 23 -17 31 37 0.32 - 77 0 0 -17 8 58 8 55 28.0 18 58 -38 -17 12 16 -17 5 40 -17 14 21 -17 3 36 0.32 - 76 0 0 -16 40 58 8 55 29.2 19 57 -37 -16 44 15 -16 37 40 -16 46 20 -16 35 35 0.32 - 75 0 0 -16 12 59 8 55 30.5 20 57 -36 -16 16 16 -16 9 41 -16 18 21 -16 7 37 0.32 - 74 0 0 -15 45 2 8 55 31.8 22 57 -35 -15 48 20 -15 41 44 -15 50 24 -15 39 40 0.33 - 73 0 0 -15 17 9 8 55 33.3 23 56 -34 -15 20 26 -15 13 51 -15 22 31 -15 11 47 0.33 - 72 0 0 -14 49 19 8 55 34.7 24 56 -32 -14 52 37 -14 46 2 -14 54 41 -14 43 58 0.33 - 71 0 0 -14 21 35 8 55 36.3 25 56 -31 -14 24 52 -14 18 18 -14 26 56 -14 16 14 0.33 - 70 0 0 -13 53 56 8 55 37.9 26 55 -30 -13 57 13 -13 50 39 -13 59 17 -13 48 35 0.33 - 69 0 0 -13 26 24 8 55 39.6 27 55 -29 -13 29 40 -13 23 7 -13 31 44 -13 21 3 0.33 - 68 0 0 -12 58 58 8 55 41.3 28 55 -28 -13 2 15 -12 55 42 -13 4 19 -12 53 38 0.33 - 67 0 0 -12 31 41 8 55 43.2 29 54 -27 -12 34 57 -12 28 25 -12 37 1 -12 26 21 0.33 - 66 0 0 -12 4 32 8 55 45.0 30 54 -26 -12 7 48 -12 1 16 -12 9 51 -11 59 12 0.33 - 65 0 0 -11 37 32 8 55 47.0 31 54 -25 -11 40 48 -11 34 16 -11 42 51 -11 32 13 0.33 - 64 0 0 -11 10 42 8 55 49.0 32 53 -24 -11 13 58 -11 7 27 -11 16 1 -11 5 24 0.33 - 63 0 0 -10 44 4 8 55 51.0 33 53 -23 -10 47 19 -10 40 48 -10 49 22 -10 38 46 0.33 - 62 0 0 -10 17 36 8 55 53.2 34 53 -22 -10 20 51 -10 14 21 -10 22 54 -10 12 19 0.33 - 61 0 0 - 9 51 21 8 55 55.3 35 52 -21 - 9 54 36 - 9 48 6 - 9 56 38 - 9 46 4 0.33 - 60 0 0 - 9 25 18 8 55 57.6 36 52 -20 - 9 28 33 - 9 22 4 - 9 30 35 - 9 20 2 0.33 - 59 0 0 - 8 59 30 8 55 59.9 37 52 -19 - 9 2 44 - 8 56 16 - 9 4 46 - 8 54 13 0.33 - 58 0 0 - 8 33 55 8 56 2.2 38 51 -17 - 8 37 8 - 8 30 41 - 8 39 11 - 8 28 39 0.34 - 57 0 0 - 8 8 35 8 56 4.6 39 51 -16 - 8 11 48 - 8 5 21 - 8 13 50 - 8 3 20 0.34 - 56 0 0 - 7 43 30 8 56 7.1 41 50 -15 - 7 46 43 - 7 40 17 - 7 48 45 - 7 38 16 0.34 - 55 0 0 - 7 18 42 8 56 9.6 42 50 -14 - 7 21 54 - 7 15 29 - 7 23 56 - 7 13 28 0.34 - 54 0 0 - 6 54 10 8 56 12.1 43 50 -13 - 6 57 22 - 6 50 57 - 6 59 23 - 6 48 56 0.34 - 53 0 0 - 6 29 55 8 56 14.8 44 49 -12 - 6 33 7 - 6 26 43 - 6 35 8 - 6 24 42 0.34 - 52 0 0 - 6 5 58 8 56 17.4 45 49 -11 - 6 9 10 - 6 2 46 - 6 11 10 - 6 0 46 0.34 - 51 0 0 - 5 42 19 8 56 20.1 46 48 -10 - 5 45 31 - 5 39 8 - 5 47 31 - 5 37 7 0.34 - 50 0 0 - 5 18 59 8 56 22.8 47 48 -9 - 5 22 10 - 5 15 48 - 5 24 11 - 5 13 48 0.34 - 49 0 0 - 4 55 59 8 56 25.6 48 47 -8 - 4 59 10 - 4 52 48 - 5 1 10 - 4 50 48 0.34 - 48 0 0 - 4 33 18 8 56 28.4 49 47 -7 - 4 36 28 - 4 30 8 - 4 38 28 - 4 28 8 0.34 - 47 0 0 - 4 10 58 8 56 31.3 50 46 -6 - 4 14 8 - 4 7 48 - 4 16 7 - 4 5 48 0.34 - 46 0 0 - 3 48 58 8 56 34.2 51 45 -5 - 3 52 8 - 3 45 49 - 3 54 7 - 3 43 49 0.34 - 45 0 0 - 3 27 20 8 56 37.2 52 45 -3 - 3 30 29 - 3 24 11 - 3 32 28 - 3 22 11 0.34 - 44 0 0 - 3 6 3 8 56 40.1 53 44 -2 - 3 9 12 - 3 2 54 - 3 11 11 - 3 0 55 0.34 - 43 0 0 - 2 45 8 8 56 43.1 53 43 -1 - 2 48 17 - 2 42 0 - 2 50 16 - 2 40 1 0.34 - 42 0 0 - 2 24 36 8 56 46.2 54 43 0 - 2 27 44 - 2 21 28 - 2 29 43 - 2 19 29 0.34 - 41 0 0 - 2 4 26 8 56 49.3 55 42 1 - 2 7 34 - 2 1 19 - 2 9 33 - 1 59 20 0.34 - 40 0 0 - 1 44 40 8 56 52.4 56 41 2 - 1 47 48 - 1 41 33 - 1 49 46 - 1 39 35 0.34 - 39 0 0 - 1 25 17 8 56 55.5 57 40 3 - 1 28 25 - 1 22 10 - 1 30 22 - 1 20 13 0.34 - 38 0 0 - 1 6 18 8 56 58.6 58 39 4 - 1 9 25 - 1 3 12 - 1 11 23 - 1 1 14 0.34 - 37 0 0 - 0 47 44 8 57 1.8 59 38 5 - 0 50 50 - 0 44 37 - 0 52 48 - 0 42 40 0.34 - 36 0 0 - 0 29 33 8 57 5.0 60 37 6 - 0 32 39 - 0 26 27 - 0 34 37 - 0 24 30 0.34 - 35 0 0 - 0 11 48 8 57 8.3 61 36 7 - 0 14 53 - 0 8 42 - 0 16 50 - 0 6 45 0.34 - 34 0 0 0 5 33 8 57 11.5 61 35 8 0 2 27 0 8 38 0 0 31 0 10 35 0.34 - 33 0 0 0 22 28 8 57 14.8 62 34 9 0 19 23 0 25 33 0 17 27 0 27 30 0.34 - 32 0 0 0 38 58 8 57 18.1 63 32 10 0 35 53 0 42 3 0 33 57 0 43 59 0.34 - 31 0 0 0 55 2 8 57 21.4 64 31 11 0 51 58 0 58 7 0 50 2 1 0 3 0.34 - 30 0 0 1 10 40 8 57 24.7 65 29 12 1 7 36 1 13 44 1 5 40 1 15 40 0.34 - 29 0 0 1 25 52 8 57 28.0 65 28 13 1 22 49 1 28 56 1 20 53 1 30 52 0.34 - 28 0 0 1 40 38 8 57 31.4 66 26 14 1 37 35 1 43 42 1 35 39 1 45 37 0.34 - 27 0 0 1 54 57 8 57 34.7 67 24 15 1 51 54 1 58 0 1 49 59 1 59 56 0.34 - 26 0 0 2 8 50 8 57 38.1 67 22 17 2 5 47 2 11 53 2 3 52 2 13 48 0.34 - 25 0 0 2 22 15 8 57 41.5 68 20 18 2 19 13 2 25 18 2 17 18 2 27 13 0.34 - 24 0 0 2 35 14 8 57 44.9 68 18 19 2 32 12 2 38 16 2 30 17 2 40 11 0.34 - 23 0 0 2 47 46 8 57 48.3 69 16 20 2 44 44 2 50 48 2 42 49 2 52 42 0.35 - 22 0 0 2 59 50 8 57 51.7 69 13 21 2 56 48 3 2 52 2 54 54 3 4 46 0.35 - 21 0 0 3 11 27 8 57 55.1 70 11 22 3 8 25 3 14 28 3 6 31 3 16 23 0.35 - 20 0 0 3 22 36 8 57 58.5 70 8 23 3 19 35 3 25 38 3 17 41 3 27 32 0.35 - 19 0 0 3 33 18 8 58 1.9 70 6 24 3 30 17 3 36 19 3 28 23 3 38 13 0.35 - 18 0 0 3 43 32 8 58 5.3 70 3 25 3 40 31 3 46 33 3 38 38 3 48 27 0.35 - 17 0 0 3 53 19 8 58 8.7 71 0 26 3 50 18 3 56 19 3 48 24 3 58 13 0.35 - 16 0 0 4 2 37 8 58 12.1 71 357 27 3 59 37 4 5 38 3 57 43 4 7 31 0.35 - 15 0 0 4 11 28 8 58 15.5 71 354 28 4 8 28 4 14 28 4 6 34 4 16 21 0.35 - 14 0 0 4 19 50 8 58 18.9 71 352 29 4 16 50 4 22 50 4 14 57 4 24 44 0.35 - 13 0 0 4 27 45 8 58 22.3 71 349 30 4 24 45 4 30 45 4 22 52 4 32 38 0.35 - 12 0 0 4 35 11 8 58 25.7 71 346 31 4 32 12 4 38 11 4 30 19 4 40 4 0.35 - 11 0 0 4 42 10 8 58 29.1 71 343 32 4 39 10 4 45 9 4 37 17 4 47 2 0.35 - 10 0 0 4 48 40 8 58 32.4 70 340 33 4 45 40 4 51 39 4 43 47 4 53 32 0.35 - 9 0 0 4 54 42 8 58 35.8 70 338 34 4 51 42 4 57 41 4 49 50 4 59 34 0.35 - 8 0 0 5 0 15 8 58 39.2 70 335 35 4 57 16 5 3 14 4 55 23 5 5 7 0.35 - 7 0 0 5 5 20 8 58 42.5 69 333 36 5 2 21 5 8 19 5 0 29 5 10 12 0.35 - 6 0 0 5 9 57 8 58 45.9 69 330 37 5 6 58 5 12 56 5 5 6 5 14 49 0.35 - 5 0 0 5 14 6 8 58 49.2 69 328 38 5 11 7 5 17 4 5 9 14 5 18 57 0.35 - 4 0 0 5 17 46 8 58 52.5 68 326 39 5 14 47 5 20 44 5 12 54 5 22 37 0.35 - 3 0 0 5 20 57 8 58 55.8 68 324 39 5 17 59 5 23 56 5 16 6 5 25 48 0.35 - 2 0 0 5 23 40 8 58 59.1 67 322 40 5 20 42 5 26 39 5 18 49 5 28 31 0.35 - 1 0 0 5 25 55 8 59 2.4 66 320 41 5 22 57 5 28 54 5 21 4 5 30 46 0.35 0 0 0 5 27 42 8 59 5.6 66 319 42 5 24 43 5 30 40 5 22 51 5 32 32 0.35 1 0 0 5 28 59 8 59 8.8 65 317 43 5 26 1 5 31 58 5 24 9 5 33 50 0.35 2 0 0 5 29 49 8 59 12.1 64 316 44 5 26 50 5 32 47 5 24 58 5 34 39 0.35 3 0 0 5 30 10 8 59 15.3 64 314 45 5 27 11 5 33 8 5 25 19 5 35 0 0.35 4 0 0 5 30 2 8 59 18.4 63 313 46 5 27 4 5 33 1 5 25 11 5 34 53 0.35 5 0 0 5 29 26 8 59 21.6 62 312 47 5 26 28 5 32 25 5 24 36 5 34 17 0.35 6 0 0 5 28 22 8 59 24.7 61 311 48 5 25 24 5 31 20 5 23 31 5 33 13 0.35 7 0 0 5 26 49 8 59 27.8 61 310 49 5 23 51 5 29 48 5 21 58 5 31 40 0.35 8 0 0 5 24 48 8 59 30.9 60 309 50 5 21 50 5 27 47 5 19 57 5 29 39 0.35 9 0 0 5 22 19 8 59 34.0 59 308 51 5 19 20 5 25 17 5 17 28 5 27 9 0.35 10 0 0 5 19 21 8 59 37.0 58 307 52 5 16 22 5 22 19 5 14 30 5 24 12 0.35 11 0 0 5 15 54 8 59 40.0 57 306 52 5 12 56 5 18 53 5 11 3 5 20 46 0.35 12 0 0 5 12 0 8 59 43.0 56 305 53 5 9 1 5 14 59 5 7 8 5 16 51 0.35 13 0 0 5 7 37 8 59 46.0 56 305 54 5 4 38 5 10 36 5 2 46 5 12 29 0.35 14 0 0 5 2 46 8 59 48.9 55 304 55 4 59 47 5 5 45 4 57 54 5 7 38 0.35 15 0 0 4 57 27 8 59 51.8 54 303 56 4 54 28 5 0 26 4 52 35 5 2 19 0.35 16 0 0 4 51 40 8 59 54.7 53 303 57 4 48 40 4 54 39 4 46 47 4 56 32 0.35 17 0 0 4 45 24 8 59 57.5 52 302 58 4 42 25 4 48 23 4 40 32 4 50 16 0.35 18 0 0 4 38 41 9 0 0.3 51 302 58 4 35 41 4 41 40 4 33 48 4 43 33 0.35 19 0 0 4 31 29 9 0 3.1 50 302 59 4 28 29 4 34 29 4 26 36 4 36 22 0.35 20 0 0 4 23 50 9 0 5.8 49 301 60 4 20 50 4 26 50 4 18 57 4 28 43 0.35 21 0 0 4 15 42 9 0 8.5 48 301 61 4 12 42 4 18 42 4 10 49 4 20 36 0.35 22 0 0 4 7 8 9 0 11.2 47 300 62 4 4 7 4 10 8 4 2 14 4 12 1 0.35 23 0 0 3 58 5 9 0 13.8 46 300 62 3 55 4 4 1 5 3 53 11 4 2 59 0.35 24 0 0 3 48 35 9 0 16.4 45 300 63 3 45 34 3 51 35 3 43 40 3 53 29 0.35 25 0 0 3 38 37 9 0 18.9 45 299 64 3 35 36 3 41 37 3 33 42 3 43 31 0.35 26 0 0 3 28 11 9 0 21.4 44 299 64 3 25 10 3 31 12 3 23 16 3 33 6 0.35 27 0 0 3 17 19 9 0 23.9 43 299 65 3 14 18 3 20 20 3 12 23 3 22 14 0.35 28 0 0 3 5 59 9 0 26.3 42 299 66 3 2 57 3 9 1 3 1 3 3 10 55 0.35 29 0 0 2 54 12 9 0 28.7 41 298 66 2 51 10 2 57 14 2 49 16 2 59 8 0.35 30 0 0 2 41 58 9 0 31.0 40 298 67 2 38 56 2 45 0 2 37 2 2 46 55 0.35 31 0 0 2 29 18 9 0 33.3 39 298 67 2 26 15 2 32 20 2 24 20 2 34 15 0.35 32 0 0 2 16 10 9 0 35.6 38 298 68 2 13 8 2 19 13 2 11 13 2 21 8 0.35 33 0 0 2 2 36 9 0 37.8 37 298 68 1 59 33 2 5 39 1 57 38 2 7 34 0.35 34 0 0 1 48 36 9 0 39.9 36 298 69 1 45 33 1 51 39 1 43 37 1 53 34 0.35 35 0 0 1 34 9 9 0 42.0 35 297 69 1 31 6 1 37 13 1 29 10 1 39 8 0.35 36 0 0 1 19 17 9 0 44.1 34 297 69 1 16 13 1 22 21 1 14 17 1 24 16 0.35 37 0 0 1 3 59 9 0 46.1 33 297 70 1 0 55 1 7 3 0 58 59 1 8 58 0.35 38 0 0 0 48 15 9 0 48.0 32 297 70 0 45 10 0 51 19 0 43 14 0 53 15 0.35 39 0 0 0 32 5 9 0 49.9 31 297 70 0 29 0 0 35 10 0 27 4 0 37 6 0.35 40 0 0 0 15 30 9 0 51.8 30 297 70 0 12 25 0 18 35 0 10 29 0 20 32 0.35 41 0 0 - 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9 1 49 - 9 10 18 - 8 59 47 0.36 67 0 0 - 9 30 40 9 1 18.3 1 294 55 - 9 33 54 - 9 27 26 - 9 35 57 - 9 25 24 0.38 68 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - 9 51 15 .... Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: TYC 1814-00585-1 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 04 07 03.8367 DE: +23 07 25.287 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 04 07 03.8369 DE: +23 07 25.287 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.6 * B mag [mag]: 10.7 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2346) Lilio asteroid class: approx. diameter [km]: 10 approx. diameter ["]: 0.006 distance from Earth [AU]: 2.42230 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 24 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): 0.013", 0.002", 86.102° remarks: * orbital elements for (2346)Lilio : Mean anomaly = 35.8335672010 deg Arg. of pericenter = 106.6468175923 deg Long. of node = 244.6145120941 deg Inclination = 5.9245412489 deg Eccentricity = 0.1560467436 Semimajor axis = 2.3716557232 AU Perihelion dist = 2.0015665708 AU Mag: H = 12.45, G = 0.15 Epoch of elements : MJD 60517.37382016 TDT (2024 Jul 26.3738) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#472023Apr24,0.31,2024,7,26,8.971671,0.047625,-0.323840,18.659270,2.743546,-0.004365,-0.000724,-0.000001,0.000000 -16.9964,23.1894,47.07,19.28,False TYC 1814-00585-1,4.11773237,23.1236906,10.73,10.56,10.47,0.0,0,,4.14188925,23.1893802,6.56,6.21,0,0,0 2346,Lilio,17.12,10.356,2.4223,0,0,4.913,9.96,,1.0,0 0,35.7327,2024,7,26,106.6468,244.6145,5.9245,0.15605,2.37166,2.00157,12.45,5.0,0.15 1.315,0.0127,0.0016,86,0.0019,Known errors,1.07,0,-1,-1 20240726_0585-1,60140.22 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 05:16 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org