IOTA/IOTA-ES occultation update for (1302) Werra / TYC 1357-00180-1 event on 2024 Oct 15, 07:20 UT Visible from Summary ------- On 2024 Oct 15 UT, the 33.9474949184292 km diameter asteroid (1302) Werra will occult a 8.9 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 7.01 mag to 15.92 mag (the magnitude of the asteroid) for at most 2.330 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 15, 07:16 - 2024 Oct 15, 07:24 * geocentric midpoint of event [JD]: 2460598.80604742 * magnitude of target star: 8.91 * magnitude drop [mag]: 7.01 * estimated maximum duration [s]: 2.330 * Moon: 93 % sunlit, 115° distance * Sun: 97° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 62 * 1 sigma uncertainty interval [path widths]: +/- 0.14 * 1 sigma uncertainty interval [seconds]: +/- 3.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.027, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.027", 0.003", 94°) * approx speed of asteroid's shadow [km/s]: 14.6184 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1357-00180-1 by 1302 Werra on 2024 Oct 15 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 - 90 0 0 .. .. .... .. .. .. .. .. .. .. .. .. -47 42 25 .. .. .. -47 36 47 .... - 89 0 0 -47 35 11 7 16 44.6 1 55 -30 -47 55 24 -47 15 10 -48 1 9 -47 9 34 .... - 88 0 0 -47 8 5 7 16 44.8 2 55 -30 -47 28 11 -46 48 11 -47 33 54 -46 42 36 0.91 - 87 0 0 -46 41 16 7 16 45.2 2 54 -30 -47 1 15 -46 21 29 -47 6 56 -46 15 56 1.12 - 86 0 0 -46 14 45 7 16 45.7 3 53 -30 -46 34 38 -45 55 4 -46 40 17 -45 49 33 1.22 - 85 0 0 -45 48 33 7 16 46.4 4 52 -30 -46 8 19 -45 28 59 -46 13 56 -45 23 30 1.28 - 84 0 0 -45 22 41 7 16 47.2 5 52 -30 -45 42 20 -45 3 13 -45 47 55 -44 57 46 1.32 - 83 0 0 -44 57 10 7 16 48.2 6 51 -30 -45 16 42 -44 37 49 -45 22 16 -44 32 23 1.35 - 82 0 0 -44 32 0 7 16 49.4 6 50 -30 -44 51 26 -44 12 45 -44 56 58 -44 7 21 1.37 - 81 0 0 -44 7 13 7 16 50.8 7 50 -30 -44 26 33 -43 48 4 -44 32 2 -43 42 42 1.39 - 80 0 0 -43 42 49 7 16 52.3 8 49 -30 -44 2 2 -43 23 46 -44 7 30 -43 18 25 1.40 - 79 0 0 -43 18 49 7 16 54.0 9 48 -30 -43 37 56 -42 59 52 -43 43 22 -42 54 33 1.41 - 78 0 0 -42 55 13 7 16 55.8 10 47 -30 -43 14 15 -42 36 22 -43 19 39 -42 31 5 1.42 - 77 0 0 -42 32 3 7 16 57.9 10 47 -29 -42 50 59 -42 13 18 -42 56 22 -42 8 2 1.43 - 76 0 0 -42 9 20 7 17 0.0 11 46 -29 -42 28 10 -41 50 40 -42 33 31 -41 45 26 1.43 - 75 0 0 -41 47 3 7 17 2.4 12 45 -29 -42 5 47 -41 28 29 -42 11 7 -41 23 16 1.44 - 74 0 0 -41 25 13 7 17 4.9 13 44 -29 -41 43 52 -41 6 45 -41 49 10 -41 1 34 1.45 - 73 0 0 -41 3 52 7 17 7.6 14 44 -28 -41 22 26 -40 45 29 -41 27 42 -40 40 19 1.45 - 72 0 0 -40 43 0 7 17 10.4 14 43 -28 -41 1 28 -40 24 41 -41 6 42 -40 19 33 1.46 - 71 0 0 -40 22 37 7 17 13.4 15 42 -28 -40 41 0 -40 4 23 -40 46 13 -39 59 16 1.46 - 70 0 0 -40 2 43 7 17 16.5 16 41 -27 -40 21 2 -39 44 35 -40 26 13 -39 39 29 1.46 - 69 0 0 -39 43 21 7 17 19.8 17 41 -27 -40 1 34 -39 25 17 -40 6 44 -39 20 13 1.47 - 68 0 0 -39 24 29 7 17 23.2 17 40 -26 -39 42 38 -39 6 30 -39 47 47 -39 1 27 1.47 - 67 0 0 -39 6 9 7 17 26.8 18 39 -26 -39 24 13 -38 48 14 -39 29 21 -38 43 12 1.47 - 66 0 0 -38 48 20 7 17 30.5 19 38 -26 -39 6 20 -38 30 30 -39 11 26 -38 25 29 1.48 - 65 0 0 -38 31 4 7 17 34.4 20 38 -25 -38 49 0 -38 13 18 -38 54 5 -38 8 18 1.48 - 64 0 0 -38 14 21 7 17 38.4 20 37 -25 -38 32 12 -37 56 38 -38 37 16 -37 51 40 1.48 - 63 0 0 -37 58 11 7 17 42.5 21 36 -24 -38 15 58 -37 40 32 -38 21 1 -37 35 35 1.48 - 62 0 0 -37 42 34 7 17 46.8 22 35 -24 -38 0 18 -37 24 59 -38 5 20 -37 20 3 1.49 - 61 0 0 -37 27 32 7 17 51.2 22 34 -23 -37 45 12 -37 10 0 -37 50 12 -37 5 5 1.49 - 60 0 0 -37 13 3 7 17 55.7 23 33 -22 -37 30 40 -36 55 36 -37 35 39 -36 50 41 1.49 - 59 0 0 -36 59 10 7 18 0.4 24 33 -22 -37 16 43 -36 41 45 -37 21 42 -36 36 52 1.49 - 58 0 0 -36 45 51 7 18 5.2 24 32 -21 -37 3 21 -36 28 30 -37 8 19 -36 23 37 1.49 - 57 0 0 -36 33 8 7 18 10.1 25 31 -21 -36 50 35 -36 15 50 -36 55 32 -36 10 58 1.50 - 56 0 0 -36 21 0 7 18 15.1 25 30 -20 -36 38 24 -36 3 45 -36 43 20 -35 58 54 1.50 - 55 0 0 -36 9 28 7 18 20.2 26 29 -19 -36 26 49 -35 52 16 -36 31 45 -35 47 26 1.50 - 54 0 0 -35 58 33 7 18 25.4 27 28 -19 -36 15 51 -35 41 22 -36 20 46 -35 36 33 1.50 - 53 0 0 -35 48 13 7 18 30.7 27 27 -18 -36 5 29 -35 31 5 -36 10 23 -35 26 17 1.50 - 52 0 0 -35 38 30 7 18 36.1 28 26 -17 -35 55 44 -35 21 25 -36 0 37 -35 16 37 1.51 - 51 0 0 -35 29 24 7 18 41.6 28 25 -17 -35 46 36 -35 12 21 -35 51 28 -35 7 33 1.51 - 50 0 0 -35 20 55 7 18 47.2 29 24 -16 -35 38 5 -35 3 54 -35 42 57 -34 59 7 1.51 - 49 0 0 -35 13 3 7 18 52.9 29 23 -15 -35 30 11 -34 56 4 -35 35 2 -34 51 17 1.51 - 48 0 0 -35 5 48 7 18 58.6 30 22 -15 -35 22 54 -34 48 50 -35 27 45 -34 44 4 1.51 - 47 0 0 -34 59 11 7 19 4.5 30 21 -14 -35 16 15 -34 42 15 -35 21 6 -34 37 29 1.51 - 46 0 0 -34 53 11 7 19 10.4 30 20 -13 -35 10 14 -34 36 16 -35 15 4 -34 31 31 1.51 - 45 0 0 -34 47 49 7 19 16.4 31 19 -12 -35 4 51 -34 30 55 -35 9 41 -34 26 11 1.51 - 44 0 0 -34 43 5 7 19 22.4 31 18 -12 -35 0 6 -34 26 12 -35 4 55 -34 21 28 1.52 - 43 0 0 -34 38 59 7 19 28.5 31 17 -11 -34 55 58 -34 22 7 -35 0 48 -34 17 23 1.52 - 42 0 0 -34 35 31 7 19 34.7 32 16 -10 -34 52 29 -34 18 39 -34 57 18 -34 13 55 1.52 - 41 0 0 -34 32 40 7 19 40.9 32 15 -9 -34 49 38 -34 15 50 -34 54 27 -34 11 6 1.52 - 40 0 0 -34 30 28 7 19 47.1 32 14 -8 -34 47 26 -34 13 38 -34 52 15 -34 8 54 1.52 - 39 0 0 -34 28 54 7 19 53.4 32 13 -8 -34 45 52 -34 12 5 -34 50 40 -34 7 21 1.52 - 38 0 0 -34 27 59 7 19 59.7 33 12 -7 -34 44 56 -34 11 9 -34 49 45 -34 6 26 1.52 - 37 0 0 -34 27 42 7 20 6.1 33 11 -6 -34 44 39 -34 10 52 -34 49 27 -34 6 8 1.52 - 36 0 0 -34 28 3 7 20 12.5 33 10 -5 -34 45 0 -34 11 13 -34 49 48 -34 6 29 1.52 - 35 0 0 -34 29 2 7 20 18.9 33 8 -4 -34 45 59 -34 12 12 -34 50 48 -34 7 28 1.52 - 34 0 0 -34 30 40 7 20 25.3 33 7 -3 -34 47 38 -34 13 49 -34 52 26 -34 9 5 1.52 - 33 0 0 -34 32 56 7 20 31.8 33 6 -3 -34 49 54 -34 16 5 -34 54 43 -34 11 21 1.52 - 32 0 0 -34 35 50 7 20 38.2 33 5 -2 -34 52 49 -34 18 58 -34 57 38 -34 14 14 1.52 - 31 0 0 -34 39 22 7 20 44.7 33 4 -1 -34 56 22 -34 22 30 -35 1 12 -34 17 45 1.53 - 30 0 0 -34 43 33 7 20 51.1 33 3 0 -35 0 34 -34 26 39 -35 5 24 -34 21 54 1.53 - 29 0 0 -34 48 21 7 20 57.6 33 2 1 -35 5 24 -34 31 27 -35 10 14 -34 26 42 1.53 - 28 0 0 -34 53 48 7 21 4.0 33 0 2 -35 10 52 -34 36 52 -35 15 42 -34 32 7 1.53 - 27 0 0 -34 59 53 7 21 10.5 33 359 2 -35 16 58 -34 42 55 -35 21 49 -34 38 9 1.53 - 26 0 0 -35 6 35 7 21 16.9 33 358 3 -35 23 42 -34 49 36 -35 28 34 -34 44 50 1.53 - 25 0 0 -35 13 56 7 21 23.2 33 357 4 -35 31 4 -34 56 55 -35 35 56 -34 52 8 1.53 - 24 0 0 -35 21 53 7 21 29.6 33 356 5 -35 39 4 -35 4 50 -35 43 56 -35 0 3 1.53 - 23 0 0 -35 30 29 7 21 35.9 32 355 6 -35 47 41 -35 13 24 -35 52 34 -35 8 36 1.53 - 22 0 0 -35 39 41 7 21 42.2 32 354 7 -35 56 56 -35 22 34 -36 1 50 -35 17 45 1.53 - 21 0 0 -35 49 31 7 21 48.5 32 353 8 -36 6 48 -35 32 21 -36 11 43 -35 27 32 1.53 - 20 0 0 -35 59 57 7 21 54.7 32 352 8 -36 17 17 -35 42 45 -36 22 12 -35 37 55 1.53 - 19 0 0 -36 11 0 7 22 0.8 31 350 9 -36 28 23 -35 53 46 -36 33 19 -35 48 55 1.53 - 18 0 0 -36 22 40 7 22 6.9 31 349 10 -36 40 6 -36 5 23 -36 45 3 -36 0 31 1.53 - 17 0 0 -36 34 56 7 22 12.9 31 348 11 -36 52 25 -36 17 36 -36 57 22 -36 12 43 1.53 - 16 0 0 -36 47 48 7 22 18.9 30 347 12 -37 5 20 -36 30 24 -37 10 19 -36 25 31 1.53 - 15 0 0 -37 1 16 7 22 24.8 30 346 13 -37 18 51 -36 43 49 -37 23 51 -36 38 55 1.53 - 14 0 0 -37 15 19 7 22 30.6 29 345 13 -37 32 58 -36 57 48 -37 37 58 -36 52 54 1.53 - 13 0 0 -37 29 57 7 22 36.3 29 344 14 -37 47 39 -37 12 23 -37 52 41 -37 7 27 1.53 - 12 0 0 -37 45 10 7 22 42.0 28 343 15 -38 2 56 -37 27 32 -38 7 59 -37 22 35 1.53 - 11 0 0 -38 0 57 7 22 47.6 28 342 16 -38 18 48 -37 43 16 -38 23 51 -37 38 18 1.53 - 10 0 0 -38 17 19 7 22 53.0 27 341 17 -38 35 13 -37 59 33 -38 40 18 -37 54 34 1.53 - 9 0 0 -38 34 14 7 22 58.4 27 340 17 -38 52 13 -38 16 24 -38 57 19 -38 11 24 1.53 - 8 0 0 -38 51 42 7 23 3.7 26 339 18 -39 9 45 -38 33 49 -39 14 53 -38 28 47 1.53 - 7 0 0 -39 9 44 7 23 8.9 26 338 19 -39 27 51 -38 51 45 -39 33 0 -38 46 43 1.53 - 6 0 0 -39 28 17 7 23 13.9 25 337 20 -39 46 29 -39 10 14 -39 51 39 -39 5 10 1.53 - 5 0 0 -39 47 23 7 23 18.9 25 336 20 -40 5 40 -39 29 15 -40 10 51 -39 24 10 1.53 - 4 0 0 -40 7 0 7 23 23.7 24 335 21 -40 25 22 -39 48 47 -40 30 35 -39 43 41 1.53 - 3 0 0 -40 27 7 7 23 28.4 23 335 22 -40 45 35 -40 8 50 -40 50 49 -40 3 42 1.53 - 2 0 0 -40 47 46 7 23 33.0 23 334 23 -41 6 18 -40 29 23 -41 11 34 -40 24 14 1.53 - 1 0 0 -41 8 54 7 23 37.5 22 333 23 -41 27 31 -40 50 26 -41 32 49 -40 45 15 1.53 0 0 0 -41 30 30 7 23 41.8 21 332 24 -41 49 14 -41 11 57 -41 54 33 -41 6 45 1.53 1 0 0 -41 52 36 7 23 46.0 21 331 25 -42 11 25 -41 33 57 -42 16 45 -41 28 43 1.53 2 0 0 -42 15 9 7 23 50.1 20 330 25 -42 34 4 -41 56 25 -42 39 26 -41 51 10 1.53 3 0 0 -42 38 10 7 23 54.0 19 329 26 -42 57 10 -42 19 20 -43 2 34 -42 14 3 1.53 4 0 0 -43 1 37 7 23 57.7 19 328 27 -43 20 44 -42 42 41 -43 26 9 -42 37 23 1.53 5 0 0 -43 25 30 7 24 1.4 18 328 27 -43 44 43 -43 6 28 -43 50 10 -43 1 8 1.53 6 0 0 -43 49 48 7 24 4.8 17 327 28 -44 9 7 -43 30 40 -44 14 36 -43 25 18 1.53 7 0 0 -44 14 30 7 24 8.2 16 326 28 -44 33 55 -43 55 16 -44 39 26 -43 49 52 1.53 8 0 0 -44 39 36 7 24 11.3 16 325 29 -44 59 7 -44 20 15 -45 4 40 -44 14 50 1.53 9 0 0 -45 5 4 7 24 14.4 15 324 30 -45 24 42 -44 45 37 -45 30 17 -44 40 10 1.53 10 0 0 -45 30 54 7 24 17.2 14 324 30 -45 50 39 -45 11 21 -45 56 15 -45 5 52 1.53 11 0 0 -45 57 4 7 24 19.9 13 323 31 -46 16 56 -45 37 25 -46 22 35 -45 31 54 1.53 12 0 0 -46 23 35 7 24 22.5 12 322 31 -46 43 34 -46 3 49 -46 49 14 -45 58 16 1.53 13 0 0 -46 50 25 7 24 24.9 12 321 32 -47 10 30 -46 30 32 -47 16 13 -46 24 58 1.54 14 0 0 -47 17 33 7 24 27.1 11 320 32 -47 37 45 -46 57 33 -47 43 30 -46 51 57 1.54 15 0 0 -47 44 58 7 24 29.2 10 320 32 -48 5 17 -47 24 51 -48 11 4 -47 19 13 1.54 16 0 0 -48 12 38 7 24 31.1 9 319 33 -48 33 5 -47 52 25 -48 38 54 -47 46 45 1.54 17 0 0 -48 40 34 7 24 32.8 9 318 33 -49 1 8 -48 20 14 -49 6 59 -48 14 32 1.54 18 0 0 -49 8 44 7 24 34.4 8 317 34 -49 29 25 -48 48 17 -49 35 18 -48 42 33 1.55 19 0 0 -49 37 7 7 24 35.8 7 317 34 -49 57 55 -49 16 33 -50 3 49 -49 10 47 1.55 20 0 0 -50 5 41 7 24 37.0 6 316 34 -50 26 36 -49 45 0 -50 32 33 -49 39 12 1.56 21 0 0 -50 34 26 7 24 38.1 5 315 35 -50 55 28 -50 13 38 -51 1 27 -50 7 49 1.56 22 0 0 -51 3 21 7 24 39.1 5 314 35 -51 24 30 -50 42 26 -51 30 31 -50 36 34 1.57 23 0 0 -51 32 23 7 24 39.9 4 313 35 -51 53 40 -51 11 22 -51 59 43 -51 5 28 1.59 24 0 0 -52 1 33 7 24 40.5 3 313 35 -52 22 57 -51 40 25 -52 29 2 -51 34 30 1.61 25 0 0 -52 30 49 7 24 41.0 2 312 35 -52 52 20 -52 9 34 -52 58 27 -52 3 37 1.64 26 0 0 -53 0 10 7 24 41.3 1 311 36 -53 21 48 -52 38 48 -53 27 57 -52 32 49 1.71 27 0 0 -53 29 34 7 24 41.5 1 310 36 -53 51 19 -53 8 6 -53 57 31 -53 2 5 1.94 28 0 0 .. .. .... .. .. .. .. .. .. .. .. .. -53 37 26 .. .. .. -53 31 23 .... Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 1357-00180-1 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 06 31.9892 DE: +22 10 34.503 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 06 31.9897 DE: +22 10 34.502 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 8.9 * B mag [mag]: 9.1 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1302) Werra asteroid class: approx. diameter [km]: 34 approx. diameter ["]: 0.021 distance from Earth [AU]: 2.25440 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#50 date of fit: 2023 Feb 11 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): 0.027", 0.003", 93.672° remarks: * orbital elements for (1302)Werra : Mean anomaly = 359.4140034973 deg Arg. of pericenter = 353.4444342111 deg Long. of node = 90.1038544395 deg Inclination = 2.5963290148 deg Eccentricity = 0.1754411136 Semimajor axis = 3.1161647572 AU Perihelion dist = 2.5694613420 AU Mag: H = 11.02, G = 0.15 Epoch of elements : MJD 60598.30604579 TDT (2024 Oct 15.3060) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#502023Feb11,2.33,2024,10,15,7.345138,-0.055218,-0.833196,8.233951,-0.531031,-0.005593,0.000660,0.000000,0.000000 -27.4921,22.1389,66.25,-8.73,False TYC 1357-00180-1,7.10888586,22.1762508,9.08,8.91,8.82,0.1,0,,7.13366750,22.1389038,7.01,6.65,0,0,0 1302,Werra,15.92,34.111,2.2544,0,0,2.312,-2.07,,2.2,0 0,359.3592,2024,10,15,353.4444,90.1039,2.5963,0.17544,3.11616,2.56946,11.02,5.0,0.15 1.141,0.0273,0.0029,94,0.0029,Known errors,1.01,0,-1,-1 20241015_0180-1,60140.64 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:15 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org