IOTA/IOTA-ES occultation update for (184) Dejopeja / TYC 1909-00857-1 event on 2024 Dec 31, 22:09 UT Visible from Summary ------- On 2024 Dec 31 UT, the 64.541 km diameter asteroid (184) Dejopeja will occult a 11.5 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 1.64 mag to 12.89 mag (the magnitude of the asteroid) for at most 4.890 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 Dec 31, 22:04 - 2024 Dec 31, 22:14 * geocentric midpoint of event [JD]: 2460676.42323112 * magnitude of target star: 11.52 * magnitude drop [mag]: 1.64 * estimated maximum duration [s]: 4.890 * Moon: 1 % sunlit, 175° distance * Sun: 173° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 109 * 1 sigma uncertainty interval [path widths]: +/- 0.12 * 1 sigma uncertainty interval [seconds]: +/- 4.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.033, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.033", 0.005", 99°) * approx speed of asteroid's shadow [km/s]: 13.2063 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1909-00857-1 by 184 Dejopeja on 2024 Dec 31 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 - 32 0 0 .. .. .... .. .. .. .. .. .. -41 40 33 .. .. .. -41 32 27 .. .. .. .... - 31 0 0 -41 47 33 22 14 12.2 1 57 -6 -41 12 34 -42 23 8 -41 4 31 -42 31 29 .... - 30 0 0 -41 19 46 22 14 12.0 2 57 -7 -40 44 59 -41 55 7 -40 36 59 -42 3 25 0.84 - 29 0 0 -40 52 23 22 14 11.5 2 56 -8 -40 17 49 -41 27 31 -40 9 51 -41 35 46 1.03 - 28 0 0 -40 25 27 22 14 10.9 3 55 -8 -39 51 5 -41 0 22 -39 43 10 -41 8 34 1.13 - 27 0 0 -39 58 57 22 14 10.1 4 55 -9 -39 24 47 -40 33 39 -39 16 55 -40 41 48 1.18 - 26 0 0 -39 32 54 22 14 9.1 5 54 -10 -38 58 56 -40 7 24 -38 51 7 -40 15 30 1.22 - 25 0 0 -39 7 19 22 14 7.9 6 53 -11 -38 33 33 -39 41 37 -38 25 46 -39 49 40 1.24 - 24 0 0 -38 42 13 22 14 6.5 7 53 -12 -38 8 38 -39 16 19 -38 0 54 -39 24 19 1.26 - 23 0 0 -38 17 36 22 14 5.0 8 52 -13 -37 44 12 -38 51 30 -37 36 31 -38 59 27 1.28 - 22 0 0 -37 53 29 22 14 3.2 9 51 -14 -37 20 16 -38 27 11 -37 12 37 -38 35 6 1.29 - 21 0 0 -37 29 52 22 14 1.3 9 51 -14 -36 56 50 -38 3 23 -36 49 14 -38 11 15 1.30 - 20 0 0 -37 6 46 22 13 59.1 10 50 -15 -36 33 54 -37 40 6 -36 26 20 -37 47 55 1.30 - 19 0 0 -36 44 11 22 13 56.8 11 50 -16 -36 11 30 -37 17 20 -36 3 58 -37 25 7 1.31 - 18 0 0 -36 22 7 22 13 54.3 12 49 -17 -35 49 36 -36 55 7 -35 42 7 -37 2 51 1.32 - 17 0 0 -36 0 36 22 13 51.7 13 48 -18 -35 28 15 -36 33 25 -35 20 47 -36 41 7 1.32 - 16 0 0 -35 39 37 22 13 48.8 14 48 -19 -35 7 25 -36 12 16 -35 0 0 -36 19 56 1.33 - 15 0 0 -35 19 11 22 13 45.8 14 47 -19 -34 47 9 -35 51 41 -34 39 45 -35 59 18 1.33 - 14 0 0 -34 59 18 22 13 42.6 15 46 -20 -34 27 25 -35 31 38 -34 20 3 -35 39 13 1.33 - 13 0 0 -34 39 59 22 13 39.3 16 46 -21 -34 8 14 -35 12 10 -34 0 55 -35 19 43 1.33 - 12 0 0 -34 21 13 22 13 35.8 17 45 -22 -33 49 36 -34 53 15 -33 42 19 -35 0 46 1.34 - 11 0 0 -34 3 1 22 13 32.1 18 44 -22 -33 31 32 -34 34 55 -33 24 17 -34 42 23 1.34 - 10 0 0 -33 45 23 22 13 28.3 18 44 -23 -33 14 3 -34 17 9 -33 6 49 -34 24 35 1.34 - 9 0 0 -33 28 20 22 13 24.3 19 43 -24 -32 57 7 -33 59 57 -32 49 55 -34 7 22 1.34 - 8 0 0 -33 11 51 22 13 20.1 20 42 -25 -32 40 45 -33 43 21 -32 33 35 -33 50 44 1.34 - 7 0 0 -32 55 57 22 13 15.9 21 42 -25 -32 24 58 -33 27 20 -32 17 50 -33 34 41 1.34 - 6 0 0 -32 40 38 22 13 11.4 21 41 -26 -32 9 46 -33 11 53 -32 2 39 -33 19 13 1.35 - 5 0 0 -32 25 54 22 13 6.9 22 40 -27 -31 55 9 -32 57 3 -31 48 3 -33 4 21 1.35 - 4 0 0 -32 11 45 22 13 2.2 23 39 -27 -31 41 7 -32 42 48 -31 34 2 -32 50 4 1.35 - 3 0 0 -31 58 12 22 12 57.3 24 39 -28 -31 27 39 -32 29 8 -31 20 37 -32 36 23 1.35 - 2 0 0 -31 45 15 22 12 52.4 24 38 -28 -31 14 48 -32 16 5 -31 7 46 -32 23 18 1.35 - 1 0 0 -31 32 53 22 12 47.3 25 37 -29 -31 2 31 -32 3 37 -30 55 31 -32 10 49 1.35 0 0 0 -31 21 6 22 12 42.1 26 36 -30 -30 50 50 -31 51 45 -30 43 51 -31 58 56 1.35 1 0 0 -31 9 56 22 12 36.7 26 36 -30 -30 39 44 -31 40 30 -30 32 47 -31 47 39 1.35 2 0 0 -30 59 21 22 12 31.3 27 35 -31 -30 29 15 -31 29 50 -30 22 18 -31 36 59 1.35 3 0 0 -30 49 23 22 12 25.7 27 34 -31 -30 19 20 -31 19 47 -30 12 25 -31 26 55 1.35 4 0 0 -30 40 0 22 12 20.0 28 33 -32 -30 10 2 -31 10 21 -30 3 7 -31 17 27 1.35 5 0 0 -30 31 14 22 12 14.3 29 32 -32 -30 1 20 -31 1 30 -29 54 26 -31 8 35 1.35 6 0 0 -30 23 4 22 12 8.4 29 32 -33 -29 53 13 -30 53 16 -29 46 20 -31 0 21 1.35 7 0 0 -30 15 30 22 12 2.4 30 31 -33 -29 45 42 -30 45 39 -29 38 50 -30 52 42 1.35 8 0 0 -30 8 32 22 11 56.3 30 30 -34 -29 38 47 -30 38 37 -29 31 56 -30 45 40 1.35 9 0 0 -30 2 10 22 11 50.2 31 29 -34 -29 32 29 -30 32 13 -29 25 38 -30 39 15 1.35 10 0 0 -29 56 25 22 11 43.9 31 28 -34 -29 26 46 -30 26 25 -29 19 55 -30 33 26 1.36 11 0 0 -29 51 16 22 11 37.6 32 27 -35 -29 21 39 -30 21 13 -29 14 49 -30 28 14 1.36 12 0 0 -29 46 43 22 11 31.2 32 26 -35 -29 17 8 -30 16 38 -29 10 19 -30 23 39 1.36 13 0 0 -29 42 46 22 11 24.7 33 25 -35 -29 13 14 -30 12 40 -29 6 25 -30 19 40 1.36 14 0 0 -29 39 26 22 11 18.2 33 24 -36 -29 9 55 -30 9 18 -29 3 6 -30 16 18 1.36 15 0 0 -29 36 42 22 11 11.6 33 23 -36 -29 7 12 -30 6 33 -29 0 24 -30 13 32 1.36 16 0 0 -29 34 35 22 11 4.9 34 22 -36 -29 5 6 -30 4 24 -28 58 18 -30 11 23 1.36 17 0 0 -29 33 3 22 10 58.2 34 21 -36 -29 3 35 -30 2 52 -28 56 47 -30 9 51 1.36 18 0 0 -29 32 8 22 10 51.4 34 20 -37 -29 2 41 -30 1 57 -28 55 53 -30 8 55 1.36 19 0 0 -29 31 49 22 10 44.5 35 19 -37 -29 2 22 -30 1 37 -28 55 34 -30 8 36 1.36 20 0 0 -29 32 7 22 10 37.7 35 18 -37 -29 2 40 -30 1 55 -28 55 52 -30 8 54 1.36 21 0 0 -29 33 1 22 10 30.7 35 17 -37 -29 3 33 -30 2 49 -28 56 45 -30 9 48 1.36 22 0 0 -29 34 30 22 10 23.8 35 16 -37 -29 5 3 -30 4 19 -28 58 15 -30 11 18 1.36 23 0 0 -29 36 37 22 10 16.8 36 15 -37 -29 7 8 -30 6 26 -29 0 20 -30 13 25 1.36 24 0 0 -29 39 19 22 10 9.7 36 14 -37 -29 9 49 -30 9 9 -29 3 1 -30 16 9 1.36 25 0 0 -29 42 37 22 10 2.7 36 13 -37 -29 13 6 -30 12 29 -29 6 17 -30 19 28 1.36 26 0 0 -29 46 31 22 9 55.6 36 12 -37 -29 16 59 -30 16 25 -29 10 10 -30 23 24 1.36 27 0 0 -29 51 1 22 9 48.5 36 11 -37 -29 21 27 -30 20 57 -29 14 38 -30 27 57 1.36 28 0 0 -29 56 7 22 9 41.4 36 10 -37 -29 26 31 -30 26 5 -29 19 41 -30 33 6 1.36 29 0 0 -30 1 50 22 9 34.2 36 8 -37 -29 32 11 -30 31 49 -29 25 21 -30 38 51 1.36 30 0 0 -30 8 8 22 9 27.1 36 7 -37 -29 38 27 -30 38 10 -29 31 36 -30 45 12 1.36 31 0 0 -30 15 1 22 9 20.0 36 6 -37 -29 45 18 -30 45 7 -29 38 26 -30 52 10 1.36 32 0 0 -30 22 31 22 9 12.8 36 5 -37 -29 52 44 -30 52 40 -29 45 52 -30 59 43 1.36 33 0 0 -30 30 36 22 9 5.7 36 4 -36 -30 0 46 -31 0 48 -29 53 53 -31 7 52 1.37 34 0 0 -30 39 17 22 8 58.6 36 3 -36 -30 9 23 -31 9 32 -30 2 29 -31 16 37 1.37 35 0 0 -30 48 33 22 8 51.5 36 2 -36 -30 18 35 -31 18 52 -30 11 40 -31 25 58 1.37 36 0 0 -30 58 24 22 8 44.4 36 1 -36 -30 28 23 -31 28 48 -30 21 27 -31 35 55 1.37 37 0 0 -31 8 51 22 8 37.3 36 360 -35 -30 38 45 -31 39 19 -30 31 48 -31 46 28 1.37 38 0 0 -31 19 53 22 8 30.3 35 359 -35 -30 49 42 -31 50 26 -30 42 45 -31 57 35 1.37 39 0 0 -31 31 30 22 8 23.2 35 357 -35 -31 1 14 -32 2 8 -30 54 16 -32 9 19 1.37 40 0 0 -31 43 42 22 8 16.3 35 356 -34 -31 13 21 -32 14 25 -31 6 21 -32 21 37 1.37 41 0 0 -31 56 28 22 8 9.3 35 355 -34 -31 26 2 -32 27 17 -31 19 1 -32 34 30 1.37 42 0 0 -32 9 49 22 8 2.4 34 354 -34 -31 39 18 -32 40 44 -31 32 15 -32 47 59 1.37 43 0 0 -32 23 45 22 7 55.6 34 353 -33 -31 53 8 -32 54 46 -31 46 4 -33 2 2 1.37 44 0 0 -32 38 15 22 7 48.8 34 352 -33 -32 7 32 -33 9 23 -32 0 26 -33 16 40 1.37 45 0 0 -32 53 20 22 7 42.1 33 351 -32 -32 22 30 -33 24 34 -32 15 23 -33 31 53 1.37 46 0 0 -33 8 58 22 7 35.4 33 350 -32 -32 38 1 -33 40 19 -32 30 53 -33 47 40 1.38 47 0 0 -33 25 10 22 7 28.8 33 349 -31 -32 54 7 -33 56 39 -32 46 57 -34 4 1 1.38 48 0 0 -33 41 56 22 7 22.3 32 348 -31 -33 10 45 -34 13 32 -33 3 34 -34 20 56 1.38 49 0 0 -33 59 15 22 7 15.8 32 347 -30 -33 27 57 -34 30 59 -33 20 44 -34 38 25 1.38 50 0 0 -34 17 8 22 7 9.4 31 346 -29 -33 45 41 -34 48 59 -33 38 27 -34 56 27 1.38 51 0 0 -34 35 33 22 7 3.1 31 345 -29 -34 3 59 -35 7 33 -33 56 42 -35 15 3 1.38 52 0 0 -34 54 30 22 6 56.9 30 344 -28 -34 22 48 -35 26 39 -34 15 30 -35 34 11 1.38 53 0 0 -35 14 1 22 6 50.8 30 343 -28 -34 42 10 -35 46 18 -34 34 49 -35 53 52 1.38 54 0 0 -35 34 3 22 6 44.8 29 342 -27 -35 2 3 -36 6 29 -34 54 40 -36 14 6 1.38 55 0 0 -35 54 37 22 6 38.8 29 341 -26 -35 22 28 -36 27 13 -35 15 3 -36 34 51 1.38 56 0 0 -36 15 42 22 6 33.0 28 340 -26 -35 43 24 -36 48 28 -35 35 57 -36 56 8 1.39 57 0 0 -36 37 18 22 6 27.3 27 340 -25 -36 4 50 -37 10 14 -35 57 22 -37 17 57 1.39 58 0 0 -36 59 25 22 6 21.7 27 339 -24 -36 26 47 -37 32 31 -36 19 16 -37 40 16 1.39 59 0 0 -37 22 2 22 6 16.3 26 338 -24 -36 49 14 -37 55 18 -36 41 41 -38 3 6 1.39 60 0 0 -37 45 8 22 6 10.9 25 337 -23 -37 12 11 -38 18 35 -37 4 35 -38 26 26 1.39 61 0 0 -38 8 44 22 6 5.7 25 336 -22 -37 35 36 -38 42 22 -37 27 58 -38 50 16 1.39 62 0 0 -38 32 49 22 6 0.6 24 335 -21 -37 59 30 -39 6 38 -37 51 49 -39 14 34 1.39 63 0 0 -38 57 22 22 5 55.6 23 334 -21 -38 23 52 -39 31 22 -38 16 9 -39 39 21 1.39 64 0 0 -39 22 22 22 5 50.8 23 334 -20 -38 48 41 -39 56 35 -38 40 56 -40 4 36 1.39 65 0 0 -39 47 50 22 5 46.1 22 333 -19 -39 13 57 -40 22 14 -39 6 9 -40 30 19 1.40 66 0 0 -40 13 44 22 5 41.6 21 332 -18 -39 39 40 -40 48 21 -39 31 49 -40 56 28 1.40 67 0 0 -40 40 4 22 5 37.2 20 331 -18 -40 5 48 -41 14 53 -39 57 55 -41 23 4 1.40 68 0 0 -41 6 49 22 5 33.0 20 330 -17 -40 32 21 -41 41 51 -40 24 25 -41 50 4 1.40 69 0 0 -41 33 59 22 5 28.9 19 329 -16 -40 59 19 -42 9 13 -40 51 20 -42 17 30 1.40 70 0 0 -42 1 32 22 5 25.0 18 329 -15 -41 26 40 -42 37 0 -41 18 38 -42 45 20 1.40 71 0 0 -42 29 29 22 5 21.3 17 328 -14 -41 54 24 -43 5 10 -41 46 19 -43 13 32 1.40 72 0 0 -42 57 47 22 5 17.7 17 327 -13 -42 22 30 -43 33 41 -42 14 22 -43 42 7 1.40 73 0 0 -43 26 27 22 5 14.3 16 326 -13 -42 50 57 -44 2 35 -42 42 46 -44 11 4 1.41 74 0 0 -43 55 28 22 5 11.0 15 326 -12 -43 19 44 -44 31 49 -43 11 31 -44 40 21 1.41 75 0 0 -44 24 47 22 5 7.9 14 325 -11 -43 48 51 -45 1 22 -43 40 35 -45 9 58 1.41 76 0 0 -44 54 26 22 5 5.0 13 324 -10 -44 18 16 -45 31 15 -44 9 57 -45 39 54 1.41 77 0 0 -45 24 22 22 5 2.3 13 323 -9 -44 47 59 -46 1 25 -44 39 37 -46 10 7 1.41 78 0 0 -45 54 34 22 4 59.8 12 323 -8 -45 17 58 -46 31 51 -45 9 33 -46 40 37 1.41 79 0 0 -46 25 2 22 4 57.4 11 322 -8 -45 48 13 -47 2 33 -45 39 45 -47 11 22 1.42 80 0 0 -46 55 45 22 4 55.2 10 321 -7 -46 18 42 -47 33 29 -46 10 11 -47 42 22 1.42 81 0 0 -47 26 40 22 4 53.2 9 320 -6 -46 49 24 -48 4 39 -46 40 50 -48 13 35 1.42 82 0 0 -47 57 48 22 4 51.3 8 319 -5 -47 20 19 -48 36 1 -47 11 42 -48 45 0 1.43 83 0 0 -48 29 7 22 4 49.7 8 319 -4 -47 51 24 -49 7 33 -47 42 44 -49 16 36 1.43 84 0 0 -49 0 35 22 4 48.2 7 318 -3 -48 22 39 -49 39 15 -48 13 56 -49 48 22 1.43 85 0 0 -49 32 11 22 4 46.9 6 317 -3 -48 54 3 -50 11 6 -48 45 17 -50 20 15 1.44 86 0 0 -50 3 55 22 4 45.7 5 316 -2 -49 25 33 -50 43 3 -49 16 45 -50 52 16 1.45 87 0 0 -50 35 44 22 4 44.8 4 316 -1 -49 57 10 -51 15 6 -49 48 19 -51 24 22 1.46 88 0 0 -51 7 38 22 4 44.0 3 315 0 -50 28 52 -51 47 13 -50 19 57 -51 56 32 1.47 89 0 0 -51 39 35 22 4 43.4 3 314 1 -51 0 36 -52 19 23 -50 51 39 -52 28 45 1.49 90 0 0 -52 11 33 22 4 43.0 2 313 2 -51 32 23 -52 51 34 -51 23 23 -53 0 59 1.54 91 0 0 -52 43 32 22 4 42.7 1 313 2 -52 4 10 -53 23 45 -51 55 8 -53 33 14 1.64 92 0 0 -53 15 30 22 4 42.6 0 312 3 -52 35 56 .. .. .. -52 26 51 .. .. .. 2.43 Uncertainty in time = +/- 4 secs Prediction of 2023 Jul 15.8 Data for the target star ------------------------ * name: TYC 1909-00857-1 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 17 07.8016 DE: +23 25 13.599 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 17 07.8016 DE: +23 25 13.599 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.5 * B mag [mag]: 11.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (184) Dejopeja asteroid class: approx. diameter [km]: 65 approx. diameter ["]: 0.041 distance from Earth [AU]: 2.17950 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#106 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): 0.033", 0.005", 98.5° remarks: * orbital elements for (184)Dejopeja : Mean anomaly = 284.4911374690 deg Arg. of pericenter = 217.4211566566 deg Long. of node = 330.1717347321 deg Inclination = 1.1290013374 deg Eccentricity = 0.0593851939 Semimajor axis = 3.1940060550 AU Perihelion dist = 3.0043293862 AU Mag: H = 8.44, G = 0.15 Epoch of elements : MJD 60675.92323208 TDT (2024 Dec 31.9232) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1062023Feb11,4.89,2024,12,31,22.157547,-0.097831,-0.799353,-7.398839,0.905249,-0.000769,-0.000016,0.000002,0.000000 36.4791,23.3755,-151.51,-23.00,False TYC 1909-00857-1,7.28550045,23.4204442,11.84,11.52,11.35,0.0,0,,7.31107976,23.3754828,1.64,1.43,0,0,0 184,Dejopeja,12.89,64.541,2.1795,0,0,-2.167,3.65,,3.2,0 0,284.3317,2024,12,31,217.4212,330.1717,1.1290,0.05939,3.19401,3.00433,8.44,5.0,0.15 1.116,0.0330,0.0047,99,0.0047,Known errors,0.82,0,-1,-1 20241231_0857-1,60140.76 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 18:18 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org