IOTA/IOTA-ES occultation update for (347) Pariana / G035428.1+163650 event on 2023 Dec 30, 00:35 UT Visible from South America Summary ------- On 2023 Dec 30 UT, the 51 km diameter asteroid (347) Pariana will occult a 10.4 mag star in the constellation Taurus for observers along a path across South America. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.83 mag to 13.18 mag (the magnitude of the asteroid) for at most 5.990 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: 2023 Dec 30, 00:24 - 2023 Dec 30, 00:47 * geocentric midpoint of event [JD]: 2460308.52470537 * magnitude of target star: 10.43 * magnitude drop [mag]: 2.83 * estimated maximum duration [s]: 5.990 * Moon: 91 % sunlit, 73° distance * Sun: 142° distance * rough path description: South America Additional comments ------------------- double star The occultation path -------------------- * approximate projected width [km]: 57 * 1 sigma uncertainty interval [path widths]: +/- 0.17 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.009, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.010", 0.001", 67°) * approx speed of asteroid's shadow [km/s]: 8.5176 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of G035428.1+163650 by 347 Pariana on 2023 Dec 30 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 0 0 0 .. .. .... .. .. .. .. .. .. - 6 22 48 .. .. .. - 6 17 13 .. .. .. .... -138 0 0 - 6 21 9 0 46 47.8 1 73 36 - 6 4 56 - 6 37 25 - 5 59 22 - 6 43 1 .... -137 0 0 - 6 3 44 0 46 47.4 2 73 35 - 5 47 33 - 6 19 57 - 5 41 59 - 6 25 32 0.33 -136 0 0 - 5 46 47 0 46 46.7 3 73 34 - 5 30 38 - 6 2 58 - 5 25 5 - 6 8 32 0.40 -135 0 0 - 5 30 18 0 46 45.8 4 73 33 - 5 14 12 - 5 46 27 - 5 8 40 - 5 52 1 0.43 -134 0 0 - 5 14 19 0 46 44.6 5 73 32 - 4 58 14 - 5 30 26 - 4 52 43 - 5 35 59 0.44 -133 0 0 - 4 58 48 0 46 43.1 6 73 31 - 4 42 46 - 5 14 53 - 4 37 15 - 5 20 25 0.46 -132 0 0 - 4 43 46 0 46 41.4 7 73 30 - 4 27 46 - 4 59 49 - 4 22 16 - 5 5 21 0.47 -131 0 0 - 4 29 14 0 46 39.4 8 72 29 - 4 13 15 - 4 45 15 - 4 7 46 - 4 50 46 0.47 -130 0 0 - 4 15 11 0 46 37.2 9 72 28 - 3 59 14 - 4 31 9 - 3 53 46 - 4 36 40 0.48 -129 0 0 - 4 1 36 0 46 34.7 10 72 27 - 3 45 42 - 4 17 33 - 3 40 14 - 4 23 3 0.48 -128 0 0 - 3 48 31 0 46 31.9 11 72 26 - 3 32 39 - 4 4 27 - 3 27 11 - 4 9 56 0.48 -127 0 0 - 3 35 56 0 46 28.9 12 72 25 - 3 20 5 - 3 51 49 - 3 14 38 - 3 57 18 0.49 -126 0 0 - 3 23 49 0 46 25.7 13 72 24 - 3 8 0 - 3 39 41 - 3 2 34 - 3 45 9 0.49 -125 0 0 - 3 12 12 0 46 22.3 14 72 23 - 2 56 25 - 3 28 2 - 2 50 59 - 3 33 30 0.49 -124 0 0 - 3 1 5 0 46 18.5 15 72 22 - 2 45 19 - 3 16 53 - 2 39 54 - 3 22 20 0.49 -123 0 0 - 2 50 26 0 46 14.6 16 72 21 - 2 34 42 - 3 6 13 - 2 29 17 - 3 11 39 0.49 -122 0 0 - 2 40 17 0 46 10.4 17 72 20 - 2 24 34 - 2 56 3 - 2 19 10 - 3 1 28 0.49 -121 0 0 - 2 30 38 0 46 6.0 18 72 19 - 2 14 56 - 2 46 22 - 2 9 32 - 2 51 47 0.49 -120 0 0 - 2 21 27 0 46 1.4 19 71 18 - 2 5 47 - 2 37 10 - 2 0 24 - 2 42 35 0.49 -119 0 0 - 2 12 46 0 45 56.6 20 71 17 - 1 57 7 - 2 28 28 - 1 51 45 - 2 33 52 0.49 -118 0 0 - 2 4 35 0 45 51.5 21 71 16 - 1 48 57 - 2 20 15 - 1 43 34 - 2 25 39 0.49 -117 0 0 - 1 56 52 0 45 46.2 22 71 16 - 1 41 15 - 2 12 31 - 1 35 53 - 2 17 54 0.49 -116 0 0 - 1 49 39 0 45 40.7 23 71 15 - 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Uncertainty in time = +/- 2 secs Prediction of 2023 Nov 13.9 Data for the target star ------------------------ * name: G035428.1+163650 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 03 54 28.1759 DE: +16 36 51.725 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 03 54 28.1739 DE: +16 36 51.716 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.400,0.200) * V mag [mag]: 10.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (347) Pariana asteroid class: approx. diameter [km]: 51 approx. diameter ["]: 0.040 distance from Earth [AU]: 1.76750 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#112 date of fit: 2023 Oct 09 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): 0.010", 0.001", 66.638° remarks: * orbital elements for (347)Pariana : Mean anomaly = 279.2288792473 deg Arg. of pericenter = 87.4265369301 deg Long. of node = 85.2196110812 deg Inclination = 11.6900864403 deg Eccentricity = 0.1637928709 Semimajor axis = 2.6134294556 AU Perihelion dist = 2.1853683421 AU Mag: H = 9.06, G = 0.15 Epoch of elements : MJD 60308.02458333 TDT (2023 Dec 30.0246) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1122023Oct09,5.99,2023,12,30,0.592929,-0.146138,-0.422637,-4.527002,1.618346,0.003442,0.001020,0.000001,0.000000 -48.1364,16.6859,171.64,-23.19,False G035428.1+163650,3.90782662,16.6143682,0.00,10.43,0.00,0.0,0,,3.93078754,16.6858866,0.03,0.00,1,1,1 347,Pariana,13.18,51.000,1.7675,0,0,-1.566,8.06,,2.6,0 0,278.9899,2023,12,29,87.4265,85.2196,11.6901,0.16379,2.61343,2.18537,9.08,5.0,0.15 1.172,0.0100,0.0006,67,0.0100,Known errors,-1.00,0,-1,-1 20231230_163650,60261.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Nov 13, 21:01 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org