IOTA/IOTA-ES occultation update for (13084) Virchow / TYC 1359-00332-1 event on 2024 Oct 16, 03:06 UT Visible from Summary ------- On 2024 Oct 16 UT, the 10.776 km diameter asteroid (13084) Virchow will occult a 11.0 mag star in the constellation Gemini for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 8.18 mag to 19.13 mag (the magnitude of the asteroid) for at most 0.780 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 Oct 16, 03:01 - 2024 Oct 16, 03:11 * geocentric midpoint of event [JD]: 2460599.62930412 * magnitude of target star: 10.95 * magnitude drop [mag]: 8.18 * estimated maximum duration [s]: 0.780 * Moon: 97 % sunlit, 106° distance * Sun: 94° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 18 * 1 sigma uncertainty interval [path widths]: +/- 0.26 * 1 sigma uncertainty interval [seconds]: +/- 1.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.002", 93°) * approx speed of asteroid's shadow [km/s]: 13.7490 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1359-00332-1 by 13084 Virchow on 2024 Oct 16 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 - 26 0 0 -45 49 15 3 1 29.6 0 59 -32 -45 54 48 -45 43 43 -45 57 42 -45 40 51 .... - 25 0 0 -45 23 59 3 1 29.7 1 58 -32 -45 29 31 -45 18 28 -45 32 24 -45 15 36 0.51 - 24 0 0 -44 58 52 3 1 30.0 2 57 -32 -45 4 22 -44 53 22 -45 7 15 -44 50 31 0.86 - 23 0 0 -44 33 55 3 1 30.4 3 57 -32 -44 39 24 -44 28 26 -44 42 16 -44 25 35 0.99 - 22 0 0 -44 9 8 3 1 31.0 3 56 -32 -44 14 37 -44 3 41 -44 17 28 -44 0 51 1.06 - 21 0 0 -43 44 34 3 1 31.7 4 55 -32 -43 50 1 -43 39 8 -43 52 52 -43 36 18 1.10 - 20 0 0 -43 20 12 3 1 32.6 5 55 -31 -43 25 38 -43 14 47 -43 28 28 -43 11 58 1.13 - 19 0 0 -42 56 4 3 1 33.7 6 54 -31 -43 1 28 -42 50 40 -43 4 18 -42 47 52 1.15 - 18 0 0 -42 32 10 3 1 34.9 7 53 -31 -42 37 33 -42 26 47 -42 40 22 -42 23 59 1.17 - 17 0 0 -42 8 30 3 1 36.3 8 52 -31 -42 13 53 -42 3 9 -42 16 41 -42 0 22 1.18 - 16 0 0 -41 45 7 3 1 37.8 8 52 -31 -41 50 28 -41 39 47 -41 53 16 -41 37 0 1.19 - 15 0 0 -41 22 1 3 1 39.6 9 51 -31 -41 27 20 -41 16 41 -41 30 7 -41 13 55 1.20 - 14 0 0 -40 59 11 3 1 41.4 10 50 -31 -41 4 30 -40 53 53 -41 7 16 -40 51 8 1.21 - 13 0 0 -40 36 40 3 1 43.5 11 50 -30 -40 41 58 -40 31 23 -40 44 43 -40 28 38 1.22 - 12 0 0 -40 14 27 3 1 45.7 12 49 -30 -40 19 44 -40 9 12 -40 22 29 -40 6 27 1.22 - 11 0 0 -39 52 34 3 1 48.1 13 48 -30 -39 57 50 -39 47 20 -40 0 34 -39 44 36 1.23 - 10 0 0 -39 31 1 3 1 50.6 13 48 -30 -39 36 16 -39 25 48 -39 39 0 -39 23 5 1.23 - 9 0 0 -39 9 49 3 1 53.4 14 47 -29 -39 15 3 -39 4 37 -39 17 46 -39 1 55 1.23 - 8 0 0 -38 48 59 3 1 56.2 15 46 -29 -38 54 11 -38 43 48 -38 56 54 -38 41 6 1.24 - 7 0 0 -38 28 31 3 1 59.3 16 45 -28 -38 33 42 -38 23 20 -38 36 24 -38 20 39 1.24 - 6 0 0 -38 8 25 3 2 2.5 17 45 -28 -38 13 35 -38 3 16 -38 16 17 -38 0 35 1.24 - 5 0 0 -37 48 43 3 2 5.8 17 44 -28 -37 53 52 -37 43 35 -37 56 33 -37 40 54 1.25 - 4 0 0 -37 29 25 3 2 9.3 18 43 -27 -37 34 32 -37 24 17 -37 37 13 -37 21 38 1.25 - 3 0 0 -37 10 31 3 2 13.0 19 43 -27 -37 15 38 -37 5 24 -37 18 18 -37 2 45 1.25 - 2 0 0 -36 52 2 3 2 16.8 20 42 -26 -36 57 8 -36 46 57 -36 59 47 -36 44 18 1.25 - 1 0 0 -36 33 59 3 2 20.8 21 41 -26 -36 39 4 -36 28 54 -36 41 43 -36 26 16 1.26 0 0 0 -36 16 21 3 2 24.9 21 40 -25 -36 21 25 -36 11 18 -36 24 4 -36 8 40 1.26 1 0 0 -35 59 11 3 2 29.2 22 39 -25 -36 4 14 -35 54 8 -36 6 52 -35 51 31 1.26 2 0 0 -35 42 27 3 2 33.6 23 39 -24 -35 47 29 -35 37 26 -35 50 7 -35 34 49 1.26 3 0 0 -35 26 11 3 2 38.1 24 38 -24 -35 31 13 -35 21 11 -35 33 50 -35 18 34 1.26 4 0 0 -35 10 23 3 2 42.8 24 37 -23 -35 15 24 -35 5 23 -35 18 0 -35 2 47 1.27 5 0 0 -34 55 3 3 2 47.6 25 36 -23 -35 0 3 -34 50 4 -35 2 39 -34 47 29 1.27 6 0 0 -34 40 12 3 2 52.6 26 35 -22 -34 45 11 -34 35 14 -34 47 47 -34 32 39 1.27 7 0 0 -34 25 50 3 2 57.7 26 35 -21 -34 30 48 -34 20 53 -34 33 24 -34 18 18 1.27 8 0 0 -34 11 58 3 3 2.9 27 34 -21 -34 16 55 -34 7 1 -34 19 30 -34 4 27 1.27 9 0 0 -33 58 36 3 3 8.2 28 33 -20 -34 3 32 -33 53 40 -34 6 7 -33 51 6 1.27 10 0 0 -33 45 43 3 3 13.6 28 32 -19 -33 50 39 -33 40 48 -33 53 13 -33 38 15 1.28 11 0 0 -33 33 22 3 3 19.2 29 31 -19 -33 38 17 -33 28 27 -33 40 51 -33 25 54 1.28 12 0 0 -33 21 31 3 3 24.9 29 30 -18 -33 26 25 -33 16 37 -33 28 59 -33 14 4 1.28 13 0 0 -33 10 11 3 3 30.6 30 29 -17 -33 15 5 -33 5 18 -33 17 38 -33 2 45 1.28 14 0 0 -32 59 23 3 3 36.5 31 28 -17 -33 4 16 -32 54 30 -33 6 49 -32 51 58 1.28 15 0 0 -32 49 6 3 3 42.5 31 27 -16 -32 53 59 -32 44 14 -32 56 31 -32 41 42 1.28 16 0 0 -32 39 21 3 3 48.6 32 26 -15 -32 44 13 -32 34 29 -32 46 46 -32 31 58 1.28 17 0 0 -32 30 9 3 3 54.8 32 25 -14 -32 35 0 -32 25 17 -32 37 32 -32 22 46 1.28 18 0 0 -32 21 28 3 4 1.0 33 24 -14 -32 26 20 -32 16 38 -32 28 52 -32 14 6 1.29 19 0 0 -32 13 21 3 4 7.4 33 23 -13 -32 18 12 -32 8 30 -32 20 43 -32 5 59 1.29 20 0 0 -32 5 46 3 4 13.8 34 22 -12 -32 10 36 -32 0 56 -32 13 8 -31 58 25 1.29 21 0 0 -31 58 44 3 4 20.3 34 21 -11 -32 3 34 -31 53 54 -32 6 5 -31 51 24 1.29 22 0 0 -31 52 15 3 4 26.9 34 20 -10 -31 57 5 -31 47 26 -31 59 36 -31 44 55 1.29 23 0 0 -31 46 19 3 4 33.5 35 19 -10 -31 51 9 -31 41 30 -31 53 40 -31 39 0 1.29 24 0 0 -31 40 57 3 4 40.2 35 18 -9 -31 45 46 -31 36 9 -31 48 17 -31 33 39 1.29 25 0 0 -31 36 9 3 4 47.0 36 17 -8 -31 40 57 -31 31 20 -31 43 28 -31 28 50 1.29 26 0 0 -31 31 53 3 4 53.8 36 16 -7 -31 36 42 -31 27 5 -31 39 13 -31 24 36 1.29 27 0 0 -31 28 12 3 5 0.7 36 15 -6 -31 33 1 -31 23 24 -31 35 31 -31 20 55 1.29 28 0 0 -31 25 5 3 5 7.6 36 13 -5 -31 29 53 -31 20 17 -31 32 23 -31 17 47 1.29 29 0 0 -31 22 31 3 5 14.6 37 12 -5 -31 27 19 -31 17 43 -31 29 49 -31 15 14 1.30 30 0 0 -31 20 32 3 5 21.6 37 11 -4 -31 25 20 -31 15 44 -31 27 50 -31 13 15 1.30 31 0 0 -31 19 6 3 5 28.6 37 10 -3 -31 23 54 -31 14 19 -31 26 24 -31 11 49 1.30 32 0 0 -31 18 15 3 5 35.7 37 9 -2 -31 23 2 -31 13 27 -31 25 33 -31 10 58 1.30 33 0 0 -31 17 57 3 5 42.7 37 7 -1 -31 22 45 -31 13 10 -31 25 15 -31 10 40 1.30 34 0 0 -31 18 13 3 5 49.8 37 6 0 -31 23 1 -31 13 26 -31 25 31 -31 10 57 1.30 35 0 0 -31 19 4 3 5 57.0 38 5 1 -31 23 52 -31 14 17 -31 26 22 -31 11 47 1.30 36 0 0 -31 20 29 3 6 4.1 38 4 1 -31 25 17 -31 15 41 -31 27 47 -31 13 12 1.30 37 0 0 -31 22 28 3 6 11.2 38 3 2 -31 27 16 -31 17 40 -31 29 46 -31 15 10 1.30 38 0 0 -31 25 0 3 6 18.3 38 1 3 -31 29 49 -31 20 13 -31 32 19 -31 17 43 1.30 39 0 0 -31 28 7 3 6 25.5 38 0 4 -31 32 56 -31 23 19 -31 35 26 -31 20 49 1.30 40 0 0 -31 31 48 3 6 32.6 37 359 5 -31 36 36 -31 26 59 -31 39 7 -31 24 30 1.30 41 0 0 -31 36 2 3 6 39.7 37 358 6 -31 40 51 -31 31 14 -31 43 22 -31 28 44 1.30 42 0 0 -31 40 50 3 6 46.8 37 357 7 -31 45 39 -31 36 1 -31 48 10 -31 33 31 1.30 43 0 0 -31 46 12 3 6 53.8 37 355 8 -31 51 1 -31 41 23 -31 53 32 -31 38 53 1.30 44 0 0 -31 52 7 3 7 0.9 37 354 8 -31 56 57 -31 47 18 -31 59 28 -31 44 47 1.30 45 0 0 -31 58 36 3 7 7.9 37 353 9 -32 3 26 -31 53 46 -32 5 57 -31 51 16 1.30 46 0 0 -32 5 38 3 7 14.9 36 352 10 -32 10 29 -32 0 48 -32 13 0 -31 58 17 1.30 47 0 0 -32 13 13 3 7 21.8 36 351 11 -32 18 4 -32 8 23 -32 20 36 -32 5 52 1.30 48 0 0 -32 21 21 3 7 28.7 36 349 12 -32 26 13 -32 16 30 -32 28 45 -32 13 59 1.30 49 0 0 -32 30 2 3 7 35.5 36 348 13 -32 34 54 -32 25 11 -32 37 27 -32 22 39 1.30 50 0 0 -32 39 16 3 7 42.3 35 347 14 -32 44 9 -32 34 24 -32 46 41 -32 31 52 1.30 51 0 0 -32 49 2 3 7 49.0 35 346 15 -32 53 55 -32 44 9 -32 56 28 -32 41 37 1.30 52 0 0 -32 59 20 3 7 55.7 35 345 15 -33 4 14 -32 54 27 -33 6 47 -32 51 55 1.30 53 0 0 -33 10 10 3 8 2.3 34 344 16 -33 15 4 -33 5 17 -33 17 38 -33 2 44 1.30 54 0 0 -33 21 32 3 8 8.8 34 343 17 -33 26 27 -33 16 38 -33 29 0 -33 14 5 1.30 55 0 0 -33 33 25 3 8 15.3 33 342 18 -33 38 21 -33 28 30 -33 40 55 -33 25 57 1.30 56 0 0 -33 45 49 3 8 21.6 33 341 19 -33 50 46 -33 40 54 -33 53 20 -33 38 20 1.30 57 0 0 -33 58 45 3 8 27.9 32 340 20 -34 3 42 -33 53 48 -34 6 16 -33 51 14 1.30 58 0 0 -34 12 10 3 8 34.1 32 339 21 -34 17 8 -34 7 13 -34 19 43 -34 4 39 1.30 59 0 0 -34 26 6 3 8 40.2 31 338 21 -34 31 5 -34 21 8 -34 33 40 -34 18 34 1.30 60 0 0 -34 40 32 3 8 46.2 31 337 22 -34 45 31 -34 35 33 -34 48 7 -34 32 58 1.30 61 0 0 -34 55 27 3 8 52.1 30 336 23 -35 0 27 -34 50 28 -35 3 4 -34 47 52 1.30 62 0 0 -35 10 51 3 8 57.9 30 335 24 -35 15 52 -35 5 51 -35 18 29 -35 3 15 1.30 63 0 0 -35 26 44 3 9 3.6 29 334 25 -35 31 46 -35 21 43 -35 34 23 -35 19 7 1.30 64 0 0 -35 43 6 3 9 9.2 28 333 25 -35 48 8 -35 38 4 -35 50 46 -35 35 27 1.30 65 0 0 -35 59 55 3 9 14.7 28 332 26 -36 4 58 -35 54 52 -36 7 36 -35 52 14 1.30 66 0 0 -36 17 11 3 9 20.0 27 331 27 -36 22 16 -36 12 7 -36 24 54 -36 9 29 1.30 67 0 0 -36 34 54 3 9 25.2 26 330 28 -36 40 0 -36 29 50 -36 42 39 -36 27 11 1.30 68 0 0 -36 53 4 3 9 30.3 26 329 28 -36 58 10 -36 47 58 -37 0 50 -36 45 19 1.30 69 0 0 -37 11 40 3 9 35.3 25 328 29 -37 16 47 -37 6 33 -37 19 27 -37 3 53 1.30 70 0 0 -37 30 41 3 9 40.1 24 327 30 -37 35 49 -37 25 33 -37 38 30 -37 22 53 1.30 71 0 0 -37 50 6 3 9 44.8 24 327 31 -37 55 16 -37 44 57 -37 57 57 -37 42 17 1.30 72 0 0 -38 9 56 3 9 49.3 23 326 31 -38 15 7 -38 4 46 -38 17 49 -38 2 5 1.30 73 0 0 -38 30 10 3 9 53.8 22 325 32 -38 35 21 -38 24 59 -38 38 4 -38 22 17 1.30 74 0 0 -38 50 46 3 9 58.0 21 324 33 -38 55 59 -38 45 34 -38 58 42 -38 42 52 1.30 75 0 0 -39 11 45 3 10 2.1 21 323 33 -39 16 59 -39 6 32 -39 19 43 -39 3 50 1.30 76 0 0 -39 33 6 3 10 6.1 20 323 34 -39 38 21 -39 27 52 -39 41 5 -39 25 9 1.30 77 0 0 -39 54 48 3 10 9.9 19 322 35 -40 0 4 -39 49 33 -40 2 49 -39 46 49 1.30 78 0 0 -40 16 50 3 10 13.6 18 321 35 -40 22 7 -40 11 34 -40 24 53 -40 8 49 1.30 79 0 0 -40 39 12 3 10 17.1 18 320 36 -40 44 30 -40 33 54 -40 47 16 -40 31 9 1.30 80 0 0 -41 1 53 3 10 20.5 17 319 36 -41 7 12 -40 56 34 -41 9 59 -40 53 48 1.30 81 0 0 -41 24 52 3 10 23.7 16 319 37 -41 30 13 -41 19 32 -41 33 0 -41 16 46 1.30 82 0 0 -41 48 9 3 10 26.7 15 318 38 -41 53 30 -41 42 48 -41 56 18 -41 40 1 1.30 83 0 0 -42 11 42 3 10 29.6 14 317 38 -42 17 5 -42 6 20 -42 19 53 -42 3 32 1.30 84 0 0 -42 35 31 3 10 32.3 14 316 39 -42 40 55 -42 30 8 -42 43 44 -42 27 20 1.30 85 0 0 -42 59 36 3 10 34.9 13 316 39 -43 5 1 -42 54 11 -43 7 51 -42 51 22 1.30 86 0 0 -43 23 54 3 10 37.3 12 315 39 -43 29 21 -43 18 28 -43 32 11 -43 15 39 1.31 87 0 0 -43 48 26 3 10 39.5 11 314 40 -43 53 54 -43 42 59 -43 56 45 -43 40 9 1.31 88 0 0 -44 13 11 3 10 41.6 10 313 40 -44 18 40 -44 7 43 -44 21 31 -44 4 52 1.31 89 0 0 -44 38 7 3 10 43.5 10 313 41 -44 43 38 -44 32 38 -44 46 30 -44 29 47 1.31 90 0 0 -45 3 15 3 10 45.2 9 312 41 -45 8 46 -44 57 44 -45 11 39 -44 54 53 1.31 91 0 0 -45 28 32 3 10 46.8 8 311 41 -45 34 5 -45 23 1 -45 36 58 -45 20 8 1.32 92 0 0 -45 53 59 3 10 48.3 7 310 42 -45 59 32 -45 48 26 -46 2 26 -45 45 33 1.32 93 0 0 -46 19 34 3 10 49.5 6 310 42 -46 25 8 -46 14 0 -46 28 3 -46 11 6 1.32 94 0 0 -46 45 16 3 10 50.6 6 309 42 -46 50 51 -46 39 41 -46 53 47 -46 36 46 1.33 95 0 0 -47 11 4 3 10 51.6 5 308 42 -47 16 41 -47 5 28 -47 19 37 -47 2 33 1.34 96 0 0 -47 36 58 3 10 52.4 4 308 43 -47 42 36 -47 31 21 -47 45 32 -47 28 26 1.35 97 0 0 -48 2 57 3 10 53.0 3 307 43 -48 8 36 -47 57 18 -48 11 33 -47 54 23 1.36 98 0 0 -48 28 59 3 10 53.5 2 306 43 -48 34 39 -48 23 19 -48 37 36 -48 20 23 1.39 99 0 0 -48 55 4 3 10 53.9 2 305 43 -49 0 45 -48 49 23 -49 3 43 -48 46 27 1.44 100 0 0 -49 21 10 3 10 54.1 1 305 43 -49 26 53 -49 15 29 -49 29 51 -49 12 32 1.58 101 0 0 -49 47 18 3 10 54.1 0 304 43 .. .. .. -49 41 36 .. .. .. -49 38 38 11.05 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 1359-00332-1 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 22 09.4726 DE: +21 10 24.156 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 22 09.4727 DE: +21 10 24.156 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.0 * B mag [mag]: 11.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (13084) Virchow asteroid class: approx. diameter [km]: 11 approx. diameter ["]: 0.006 distance from Earth [AU]: 2.47690 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#43 date of fit: 2022 Nov 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): 0.012", 0.002", 92.927° remarks: * orbital elements for (13084)Virchow : Mean anomaly = 141.8463379682 deg Arg. of pericenter = 206.5824388706 deg Long. of node = 95.8901833759 deg Inclination = 5.8364186348 deg Eccentricity = 0.0501000701 Semimajor axis = 2.6248883944 AU Perihelion dist = 2.4933813020 AU Mag: H = 13.94, G = 0.15 Epoch of elements : MJD 60599.12930321 TDT (2024 Oct 16.1293) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#432022Nov24,0.78,2024,10,16,3.103299,-0.031801,-0.790663,7.754119,-0.310110,-0.005659,0.000818,0.000000,0.000000 39.2262,21.1272,129.84,-9.03,False TYC 1359-00332-1,7.36929792,21.1733767,11.40,10.95,10.71,0.0,0,,7.39380569,21.1271615,8.18,7.98,0,0,0 13084,Virchow,19.13,10.776,2.4769,0,0,1.967,-1.10,,0.8,0 0,141.8164,2024,10,16,206.5824,95.8902,5.8364,0.05010,2.62489,2.49338,13.94,5.0,0.15 1.260,0.0123,0.0016,93,0.0016,Known errors,0.84,0,-1,-1 20241016_0332-1,60140.64 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:18 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org