IOTA/IOTA-ES occultation update for (43) Ariadne / TYC 1342-01201-1 event on 2023 Jan 19, 22:11 UT Visible from S Africa Summary ------- On 2023 Jan 19 UT, the 60.8 km diameter asteroid (43) Ariadne will occult a 9.9 mag star in the constellation Gemini for observers along a path across S Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.96 mag to 11.67 mag (the magnitude of the asteroid) for at most 5.070 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: 2023 Jan 19, 22:06 - 2023 Jan 19, 22:17 * geocentric midpoint of event [JD]: 2459964.42482958 * magnitude of target star: 9.91 * magnitude drop [mag]: 1.96 * estimated maximum duration [s]: 5.070 * Moon: 6 % sunlit, 169° distance * Sun: 161° distance * rough path description: S Africa The occultation path -------------------- * approximate projected width [km]: 98 * 1 sigma uncertainty interval [path widths]: +/- 0.04 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.002", 96°) * approx speed of asteroid's shadow [km/s]: 11.9855 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1342-01201-1 by 43 Ariadne on 2023 Jan 19 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 ' " Longitude Longitude Longitude Longitude .. .. .. -49 0 0 .. .. .... .. .. .. ... .. .. 74 49 4 ... .. .. 74 43 37 .... 73 43 32 -48 0 0 22 6 18.1 1 304 -12 74 58 38 72 27 42 75 3 58 72 22 15 .... 71 21 4 -47 0 0 22 6 19.1 3 305 -14 72 36 12 70 5 6 72 41 33 69 59 38 0.83 Latitude Latitude Latitude Latitude 71 0 0 -46 51 11 22 6 19.4 3 306 -14 -46 19 46 -47 23 2 -46 17 32 -47 25 19 1.17 70 0 0 -46 26 8 22 6 20.2 4 306 -15 -45 54 49 -46 57 52 -45 52 36 -47 0 9 1.12 69 0 0 -46 1 13 22 6 21.1 5 307 -16 -45 30 1 -46 32 50 -45 27 48 -46 35 7 1.15 68 0 0 -45 36 27 22 6 22.3 6 308 -16 -45 5 21 -46 7 57 -45 3 9 -46 10 14 1.17 67 0 0 -45 11 50 22 6 23.6 7 309 -17 -44 40 51 -45 43 14 -44 38 39 -45 45 29 1.18 66 0 0 -44 47 23 22 6 25.1 7 309 -18 -44 16 31 -45 18 40 -44 14 20 -45 20 56 1.20 65 0 0 -44 23 8 22 6 26.7 8 310 -18 -43 52 23 -44 54 18 -43 50 12 -44 56 33 1.21 64 0 0 -43 59 5 22 6 28.6 9 311 -19 -43 28 26 -44 30 8 -43 26 15 -44 32 22 1.22 63 0 0 -43 35 14 22 6 30.6 10 311 -20 -43 4 42 -44 6 10 -43 2 32 -44 8 23 1.22 62 0 0 -43 11 36 22 6 32.8 11 312 -21 -42 41 11 -43 42 25 -42 39 1 -43 44 38 1.23 61 0 0 -42 48 13 22 6 35.1 11 313 -21 -42 17 54 -43 18 55 -42 15 45 -43 21 7 1.23 60 0 0 -42 25 4 22 6 37.7 12 314 -22 -41 54 52 -42 55 39 -41 52 44 -42 57 51 1.24 59 0 0 -42 2 11 22 6 40.4 13 314 -23 -41 32 6 -42 32 39 -41 29 58 -42 34 50 1.24 58 0 0 -41 39 34 22 6 43.3 14 315 -23 -41 9 36 -42 9 55 -41 7 28 -42 12 6 1.24 57 0 0 -41 17 14 22 6 46.3 15 316 -24 -40 47 22 -41 47 28 -40 45 15 -41 49 38 1.25 56 0 0 -40 55 11 22 6 49.6 15 316 -25 -40 25 26 -41 25 18 -40 23 20 -41 27 28 1.25 55 0 0 -40 33 26 22 6 53.0 16 317 -25 -40 3 48 -41 3 26 -40 1 42 -41 5 36 1.25 54 0 0 -40 12 0 22 6 56.5 17 318 -26 -39 42 29 -40 41 53 -39 40 23 -40 44 2 1.25 53 0 0 -39 50 53 22 7 0.2 18 319 -27 -39 21 28 -40 20 39 -39 19 23 -40 22 48 1.26 52 0 0 -39 30 6 22 7 4.1 18 319 -27 -39 0 47 -39 59 46 -38 58 42 -40 1 54 1.26 51 0 0 -39 9 39 22 7 8.2 19 320 -28 -38 40 27 -39 39 12 -38 38 22 -39 41 19 1.26 50 0 0 -38 49 32 22 7 12.4 20 321 -28 -38 20 27 -39 18 59 -38 18 23 -39 21 6 1.26 49 0 0 -38 29 47 22 7 16.7 21 322 -29 -38 0 48 -38 59 7 -37 58 44 -39 1 14 1.26 48 0 0 -38 10 24 22 7 21.2 21 322 -30 -37 41 30 -38 39 38 -37 39 27 -38 41 44 1.26 47 0 0 -37 51 23 22 7 25.9 22 323 -30 -37 22 35 -38 20 30 -37 20 33 -38 22 36 1.26 46 0 0 -37 32 44 22 7 30.7 23 324 -31 -37 4 2 -38 1 45 -37 2 0 -38 3 50 1.26 45 0 0 -37 14 28 22 7 35.7 24 325 -31 -36 45 53 -37 43 23 -36 43 51 -37 45 28 1.27 44 0 0 -36 56 36 22 7 40.8 24 326 -32 -36 28 6 -37 25 25 -36 26 4 -37 27 30 1.27 43 0 0 -36 39 7 22 7 46.0 25 326 -32 -36 10 43 -37 7 51 -36 8 42 -37 9 55 1.27 42 0 0 -36 22 3 22 7 51.4 26 327 -33 -35 53 44 -36 50 41 -35 51 43 -36 52 44 1.27 41 0 0 -36 5 23 22 7 56.9 26 328 -33 -35 37 9 -36 33 55 -35 35 9 -36 35 58 1.27 40 0 0 -35 49 7 22 8 2.5 27 329 -33 -35 20 59 -36 17 34 -35 18 59 -36 19 37 1.27 39 0 0 -35 33 17 22 8 8.3 28 330 -34 -35 5 14 -36 1 39 -35 3 14 -36 3 41 1.27 38 0 0 -35 17 52 22 8 14.1 28 331 -34 -34 49 54 -35 46 9 -34 47 55 -35 48 11 1.27 37 0 0 -35 2 53 22 8 20.1 29 331 -35 -34 35 0 -35 31 4 -34 33 1 -35 33 6 1.27 36 0 0 -34 48 19 22 8 26.2 29 332 -35 -34 20 31 -35 16 26 -34 18 32 -35 18 27 1.27 35 0 0 -34 34 12 22 8 32.4 30 333 -35 -34 6 28 -35 2 14 -34 4 30 -35 4 15 1.27 34 0 0 -34 20 31 22 8 38.8 30 334 -35 -33 52 52 -34 48 29 -33 50 54 -34 50 29 1.27 33 0 0 -34 7 17 22 8 45.2 31 335 -36 -33 39 42 -34 35 10 -33 37 45 -34 37 10 1.27 32 0 0 -33 54 30 22 8 51.7 32 336 -36 -33 26 59 -34 22 19 -33 25 2 -34 24 19 1.27 31 0 0 -33 42 10 22 8 58.3 32 337 -36 -33 14 43 -34 9 54 -33 12 46 -34 11 54 1.27 30 0 0 -33 30 17 22 9 5.0 33 338 -36 -33 2 54 -33 57 57 -33 0 57 -33 59 57 1.27 29 0 0 -33 18 51 22 9 11.8 33 339 -37 -32 51 32 -33 46 28 -32 49 35 -33 48 27 1.27 28 0 0 -33 7 53 22 9 18.7 33 340 -37 -32 40 38 -33 35 26 -32 38 41 -33 37 25 1.27 27 0 0 -32 57 23 22 9 25.7 34 341 -37 -32 30 11 -33 24 53 -32 28 15 -33 26 51 1.27 26 0 0 -32 47 21 22 9 32.7 34 342 -37 -32 20 12 -33 14 47 -32 18 16 -33 16 46 1.27 25 0 0 -32 37 47 22 9 39.8 35 343 -37 -32 10 41 -33 5 10 -32 8 45 -33 7 8 1.27 24 0 0 -32 28 41 22 9 47.0 35 344 -37 -32 1 38 -32 56 1 -31 59 42 -32 57 59 1.27 23 0 0 -32 20 3 22 9 54.2 35 345 -37 -31 53 3 -32 47 20 -31 51 8 -32 49 18 1.27 22 0 0 -32 11 54 22 10 1.5 36 346 -37 -31 44 56 -32 39 8 -31 43 1 -32 41 6 1.27 21 0 0 -32 4 14 22 10 8.9 36 347 -37 -31 37 18 -32 31 25 -31 35 24 -32 33 23 1.27 20 0 0 -31 57 2 22 10 16.3 36 348 -37 -31 30 9 -32 24 11 -31 28 14 -32 26 8 1.27 19 0 0 -31 50 19 22 10 23.7 37 349 -37 -31 23 28 -32 17 26 -31 21 33 -32 19 23 1.27 18 0 0 -31 44 4 22 10 31.2 37 350 -37 -31 17 16 -32 11 9 -31 15 21 -32 13 6 1.27 17 0 0 -31 38 19 22 10 38.8 37 352 -37 -31 11 32 -32 5 22 -31 9 38 -32 7 19 1.27 16 0 0 -31 33 3 22 10 46.3 37 353 -37 -31 6 18 -32 0 4 -31 4 23 -32 2 0 1.27 15 0 0 -31 28 15 22 10 53.9 38 354 -36 -31 1 32 -31 55 15 -30 59 38 -31 57 11 1.27 14 0 0 -31 23 57 22 11 1.6 38 355 -36 -30 57 15 -31 50 55 -30 55 21 -31 52 52 1.27 13 0 0 -31 20 8 22 11 9.2 38 356 -36 -30 53 27 -31 47 5 -30 51 33 -31 49 1 1.27 12 0 0 -31 16 48 22 11 16.9 38 357 -36 -30 50 8 -31 43 44 -30 48 15 -31 45 40 1.27 11 0 0 -31 13 58 22 11 24.6 38 358 -36 -30 47 19 -31 40 53 -30 45 25 -31 42 49 1.27 10 0 0 -31 11 37 22 11 32.3 38 360 -35 -30 44 58 -31 38 31 -30 43 5 -31 40 27 1.28 9 0 0 -31 9 45 22 11 40.0 38 1 -35 -30 43 7 -31 36 38 -30 41 13 -31 38 34 1.28 8 0 0 -31 8 22 22 11 47.7 38 2 -35 -30 41 45 -31 35 15 -30 39 51 -31 37 11 1.28 7 0 0 -31 7 29 22 11 55.4 38 3 -34 -30 40 52 -31 34 22 -30 38 58 -31 36 18 1.28 6 0 0 -31 7 5 22 12 3.1 38 4 -34 -30 40 28 -31 33 58 -30 38 35 -31 35 54 1.28 5 0 0 -31 7 11 22 12 10.7 38 5 -34 -30 40 34 -31 34 4 -30 38 40 -31 35 59 1.28 4 0 0 -31 7 46 22 12 18.4 38 6 -33 -30 41 9 -31 34 39 -30 39 15 -31 36 35 1.28 3 0 0 -31 8 50 22 12 26.1 38 8 -33 -30 42 13 -31 35 44 -30 40 19 -31 37 39 1.28 2 0 0 -31 10 24 22 12 33.7 38 9 -32 -30 43 46 -31 37 18 -30 41 52 -31 39 14 1.28 1 0 0 -31 12 27 22 12 41.3 37 10 -32 -30 45 48 -31 39 22 -30 43 55 -31 41 18 1.28 0 0 0 -31 15 0 22 12 48.9 37 11 -31 -30 48 20 -31 41 55 -30 46 26 -31 43 51 1.28 - 1 0 0 -31 18 1 22 12 56.4 37 12 -31 -30 51 21 -31 44 58 -30 49 27 -31 46 54 1.28 - 2 0 0 -31 21 33 22 13 3.9 37 13 -30 -30 54 51 -31 48 30 -30 52 57 -31 50 27 1.28 - 3 0 0 -31 25 33 22 13 11.4 37 14 -30 -30 58 50 -31 52 32 -30 56 56 -31 54 29 1.28 - 4 0 0 -31 30 3 22 13 18.8 36 15 -29 -31 3 18 -31 57 3 -31 1 24 -31 59 0 1.28 - 5 0 0 -31 35 1 22 13 26.2 36 16 -29 -31 8 15 -32 2 4 -31 6 21 -32 4 1 1.28 - 6 0 0 -31 40 29 22 13 33.5 36 17 -28 -31 13 41 -32 7 34 -31 11 47 -32 9 30 1.28 - 7 0 0 -31 46 26 22 13 40.8 35 18 -28 -31 19 36 -32 13 33 -31 17 42 -32 15 30 1.28 - 8 0 0 -31 52 52 22 13 48.0 35 20 -27 -31 26 0 -32 20 1 -31 24 6 -32 21 58 1.28 - 9 0 0 -31 59 47 22 13 55.1 35 21 -26 -31 32 53 -32 26 58 -31 30 58 -32 28 55 1.28 - 10 0 0 -32 7 11 22 14 2.2 34 22 -26 -31 40 14 -32 34 24 -31 38 19 -32 36 22 1.28 - 11 0 0 -32 15 3 22 14 9.1 34 23 -25 -31 48 4 -32 42 19 -31 46 9 -32 44 17 1.29 - 12 0 0 -32 23 24 22 14 16.1 33 24 -24 -31 56 22 -32 50 43 -31 54 27 -32 52 41 1.29 - 13 0 0 -32 32 14 22 14 22.9 33 24 -24 -32 5 9 -32 59 36 -32 3 13 -33 1 34 1.29 - 14 0 0 -32 41 32 22 14 29.6 32 25 -23 -32 14 24 -33 8 57 -32 12 28 -33 10 55 1.29 - 15 0 0 -32 51 18 22 14 36.3 32 26 -22 -32 24 7 -33 18 47 -32 22 11 -33 20 45 1.29 - 16 0 0 -33 1 33 22 14 42.9 31 27 -22 -32 34 18 -33 29 5 -32 32 22 -33 31 4 1.29 - 17 0 0 -33 12 16 22 14 49.3 31 28 -21 -32 44 57 -33 39 51 -32 43 1 -33 41 50 1.29 - 18 0 0 -33 23 26 22 14 55.7 30 29 -20 -32 56 4 -33 51 5 -32 54 7 -33 53 5 1.29 - 19 0 0 -33 35 4 22 15 2.0 30 30 -20 -33 7 38 -34 2 48 -33 5 41 -34 4 47 1.29 - 20 0 0 -33 47 10 22 15 8.1 29 31 -19 -33 19 40 -34 14 57 -33 17 43 -34 16 57 1.29 - 21 0 0 -33 59 43 22 15 14.2 28 32 -18 -33 32 9 -34 27 35 -33 30 11 -34 29 35 1.29 - 22 0 0 -34 12 43 22 15 20.1 28 33 -17 -33 45 5 -34 40 39 -33 43 7 -34 42 40 1.29 - 23 0 0 -34 26 10 22 15 25.9 27 33 -17 -33 58 28 -34 54 11 -33 56 30 -34 56 12 1.30 - 24 0 0 -34 40 4 22 15 31.6 27 34 -16 -34 12 17 -35 8 10 -34 10 19 -35 10 11 1.30 - 25 0 0 -34 54 25 22 15 37.1 26 35 -15 -34 26 33 -35 22 35 -34 24 34 -35 24 37 1.30 - 26 0 0 -35 9 12 22 15 42.6 25 36 -14 -34 41 15 -35 37 27 -34 39 16 -35 39 29 1.30 - 27 0 0 -35 24 25 22 15 47.9 25 37 -13 -34 56 23 -35 52 45 -34 54 23 -35 54 47 1.30 - 28 0 0 -35 40 3 22 15 53.0 24 37 -13 -35 11 56 -36 8 29 -35 9 56 -36 10 31 1.30 - 29 0 0 -35 56 7 22 15 58.1 23 38 -12 -35 27 55 -36 24 38 -35 25 55 -36 26 41 1.30 - 30 0 0 -36 12 36 22 16 3.0 22 39 -11 -35 44 19 -36 41 13 -35 42 18 -36 43 16 1.30 - 31 0 0 -36 29 30 22 16 7.7 22 40 -10 -36 1 7 -36 58 12 -35 59 6 -37 0 16 1.30 - 32 0 0 -36 46 49 22 16 12.3 21 40 -9 -36 18 20 -37 15 37 -36 16 19 -37 17 41 1.30 - 33 0 0 -37 4 31 22 16 16.7 20 41 -9 -36 35 57 -37 33 25 -36 33 55 -37 35 30 1.31 - 34 0 0 -37 22 38 22 16 21.0 20 42 -8 -36 53 58 -37 51 38 -36 51 56 -37 53 43 1.31 - 35 0 0 -37 41 8 22 16 25.1 19 43 -7 -37 12 22 -38 10 14 -37 10 19 -38 12 19 1.31 - 36 0 0 -38 0 0 22 16 29.1 18 43 -6 -37 31 8 -38 29 13 -37 29 5 -38 31 19 1.31 - 37 0 0 -38 19 16 22 16 32.9 17 44 -5 -37 50 18 -38 48 34 -37 48 14 -38 50 41 1.31 - 38 0 0 -38 38 53 22 16 36.6 16 45 -4 -38 9 49 -39 8 18 -38 7 45 -39 10 25 1.31 - 39 0 0 -38 58 52 22 16 40.0 16 46 -4 -38 29 42 -39 28 24 -38 27 37 -39 30 31 1.31 - 40 0 0 -39 19 13 22 16 43.4 15 46 -3 -38 49 56 -39 48 51 -38 47 51 -39 50 59 1.32 - 41 0 0 -39 39 54 22 16 46.5 14 47 -2 -39 10 30 -40 9 39 -39 8 25 -40 11 47 1.32 - 42 0 0 -40 0 55 22 16 49.5 13 48 -1 -39 31 25 -40 30 47 -39 29 19 -40 32 56 1.32 - 43 0 0 -40 22 16 22 16 52.3 13 48 0 -39 52 39 -40 52 14 -39 50 33 -40 54 24 1.32 - 44 0 0 -40 43 55 22 16 54.9 12 49 1 -40 14 12 -41 14 1 -40 12 5 -41 16 11 1.32 - 45 0 0 -41 5 54 22 16 57.3 11 50 1 -40 36 4 -41 36 6 -40 33 57 -41 38 17 1.32 - 46 0 0 -41 28 10 22 16 59.6 10 50 2 -40 58 13 -41 58 30 -40 56 6 -42 0 40 1.33 - 47 0 0 -41 50 43 22 17 1.7 9 51 3 -41 20 40 -42 21 10 -41 18 32 -42 23 22 1.33 - 48 0 0 -42 13 34 22 17 3.6 8 52 4 -41 43 23 -42 44 7 -41 41 15 -42 46 19 1.33 - 49 0 0 -42 36 40 22 17 5.3 8 52 5 -42 6 23 -43 7 20 -42 4 14 -43 9 33 1.34 - 50 0 0 -43 0 1 22 17 6.9 7 53 6 -42 29 37 -43 30 49 -42 27 28 -43 33 2 1.34 - 51 0 0 -43 23 37 22 17 8.2 6 54 6 -42 53 6 -43 54 32 -42 50 56 -43 56 46 1.35 - 52 0 0 -43 47 27 22 17 9.4 5 55 7 -43 16 49 -44 18 29 -43 14 39 -44 20 43 1.36 - 53 0 0 -44 11 30 22 17 10.5 4 55 8 -43 40 45 -44 42 39 -43 38 35 -44 44 54 1.37 - 54 0 0 -44 35 45 22 17 11.3 4 56 9 -44 4 54 -45 7 1 -44 2 43 -45 9 16 1.38 - 55 0 0 -45 0 12 22 17 11.9 3 57 10 -44 29 14 -45 31 35 -44 27 2 -45 33 51 1.40 - 56 0 0 -45 24 50 22 17 12.4 2 57 10 -44 53 45 -45 56 20 -44 51 33 -45 58 36 1.45 - 57 0 0 -45 49 37 22 17 12.7 1 58 11 -45 18 26 -46 21 14 -45 16 14 -46 23 31 1.55 - 58 0 0 -46 14 34 22 17 12.9 0 59 12 -45 43 17 -46 46 18 -45 41 3 -46 48 35 2.19 Uncertainty in time = +/- 1 secs Prediction of 2022 Dec 1.1 Data for the target star ------------------------ * name: TYC 1342-01201-1 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 44 40.7545 DE: +20 54 17.240 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 44 40.7544 DE: +20 54 17.240 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 9.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (43) Ariadne asteroid class: approx. diameter [km]: 61 approx. diameter ["]: 0.052 distance from Earth [AU]: 1.62040 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#132 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): 0.012", 0.002", 96.161° remarks: * orbital elements for (43)Ariadne : Mean anomaly = 189.1225526457 deg Arg. of pericenter = 16.2158357002 deg Long. of node = 264.7613179661 deg Inclination = 3.4707751536 deg Eccentricity = 0.1687667554 Semimajor axis = 2.2027069995 AU Perihelion dist = 1.8309632861 AU Mag: H = 8.00, G = 0.11 Epoch of elements : MJD 59963.92479167 TDT (2023 Jan 19.9248) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1322022Nov22,5.07,2023,1,19,22.195910,-0.018343,-0.785700,-6.763072,0.158491,0.001899,0.000060,0.000002,0.000000 9.5356,20.8811,-150.25,-20.24,False TYC 1342-01201-1,6.74465402,20.9047888,0.00,9.91,0.00,0.0,0,,6.76775623,20.8810805,1.96,0.00,0,0,0 43,Ariadne,11.67,60.8,1.6204,0,0,-2.617,0.86,,3.6,0 0,188.8437,2023,1,19,16.2158,264.7613,3.4708,0.16877,2.20271,1.83096,8.05,5.0,0.15 1.036,0.0123,0.0015,96,0.0018,Known errors,-1.00,-1,-1,-1 20230119_1201-1,59914.09 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Dec 01, 02:14 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org