IOTA/IOTA-ES occultation update for (3470) Yaronika / TYC 1846-02189-1 event on 2024 Aug 11, 08:52 UT Visible from Summary ------- On 2024 Aug 11 UT, the 13.6850681235386 km diameter asteroid (3470) Yaronika will occult a 9.1 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 9.56 mag to 18.67 mag (the magnitude of the asteroid) for at most 0.440 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 Aug 11, 08:49 - 2024 Aug 11, 08:55 * geocentric midpoint of event [JD]: 2460533.86954159 * magnitude of target star: 9.11 * magnitude drop [mag]: 9.56 * estimated maximum duration [s]: 0.440 * Moon: 38 % sunlit, 136° distance * Sun: 59° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 15 * 1 sigma uncertainty interval [path widths]: +/- 0.13 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.001", 88°) * approx speed of asteroid's shadow [km/s]: 32.1755 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1846-02189-1 by 3470 Yaronika on 2024 Aug 11 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 - 92 0 0 -24 32 54 8 49 7.3 1 64 -52 -24 37 32 -24 28 17 -24 38 41 -24 27 8 .... - 91 0 0 -24 6 47 8 49 7.4 2 64 -51 -24 11 25 -24 2 10 -24 12 34 -24 1 1 0.18 - 90 0 0 -23 40 37 8 49 7.5 3 64 -51 -23 45 15 -23 36 0 -23 46 24 -23 34 51 0.29 - 89 0 0 -23 14 26 8 49 7.7 4 63 -50 -23 19 3 -23 9 49 -23 20 12 -23 8 39 0.33 - 88 0 0 -22 48 12 8 49 8.0 5 63 -49 -22 52 50 -22 43 36 -22 53 59 -22 42 26 0.35 - 87 0 0 -22 21 59 8 49 8.3 6 62 -48 -22 26 36 -22 17 22 -22 27 45 -22 16 13 0.37 - 86 0 0 -21 55 45 8 49 8.7 7 62 -47 -22 0 22 -21 51 8 -22 1 31 -21 49 59 0.38 - 85 0 0 -21 29 32 8 49 9.2 8 62 -46 -21 34 8 -21 24 55 -21 35 18 -21 23 46 0.39 - 84 0 0 -21 3 20 8 49 9.7 9 61 -45 -21 7 57 -20 58 44 -21 9 6 -20 57 35 0.39 - 83 0 0 -20 37 11 8 49 10.3 10 61 -44 -20 41 47 -20 32 35 -20 42 56 -20 31 26 0.40 - 82 0 0 -20 11 4 8 49 11.0 11 61 -43 -20 15 40 -20 6 28 -20 16 49 -20 5 19 0.40 - 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1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.011", 0.001", 87.895° remarks: * orbital elements for (3470)Yaronika : Mean anomaly = 243.4321597866 deg Arg. of pericenter = 312.3220000781 deg Long. of node = 237.0897126822 deg Inclination = 2.5588247492 deg Eccentricity = 0.1439049992 Semimajor axis = 2.3476871272 AU Perihelion dist = 2.0098432130 AU Mag: H = 13.34, G = 0.15 Epoch of elements : MJD 60533.36954167 TDT (2024 Aug 11.3695) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542023Feb09,0.44,2024,8,11,8.868998,0.021164,-0.405537,18.137089,0.926639,-0.004733,-0.000367,-0.000001,0.000000 -14.4486,22.9620,48.26,15.07,False TYC 1846-02189-1,5.23558572,22.9330066,10.09,9.11,8.58,0.2,0,,5.26014719,22.9620437,9.56,9.64,0,0,0 3470,Yaronika,18.67,14.105,2.8950,0,0,3.990,2.81,,0.8,0 0,243.3309,2024,8,11,312.3220,237.0897,2.5588,0.14390,2.34769,2.00984,13.34,5.0,0.15 1.125,0.0110,0.0008,88,0.0008,Known errors,1.14,0,-1,-1 20240811_2189-1,60140.24 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 05:45 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org