IOTA/IOTA-ES occultation update for (2235) Vittore / TYC 5634-01251-1 event on 2023 Mar 16, 14:18 UT Visible from New Zealand Summary ------- On 2023 Mar 16 UT, the 42.1 km diameter asteroid (2235) Vittore will occult a 11.7 mag star in the constellation Ophiuchus for observers along a path across New Zealand. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.86 mag to 16.53 mag (the magnitude of the asteroid) for at most 4.420 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: 77 * date and approx. time of event: 2023 Mar 16, 14:07 - 2023 Mar 16, 14:30 * geocentric midpoint of event [JD]: 2460020.09643500 * magnitude of target star: 11.68 * magnitude drop [mag]: 4.86 * estimated maximum duration [s]: 4.420 * Moon: 34 % sunlit, 40° distance * Sun: 109° distance * rough path description: New Zealand The occultation path -------------------- * approximate projected width [km]: 42 * 1 sigma uncertainty interval [path widths]: +/- 0.72 * 1 sigma uncertainty interval [seconds]: +/- 2.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.019, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.003", 87°) * approx speed of asteroid's shadow [km/s]: 9.5219 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5634-01251-1 by 2235 Vittore on 2023 Mar 16 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 118 0 0 -47 14 57 14 7 46.6 0 107 -34 -47 26 54 -47 3 0 -47 44 4 -46 45 49 .... 119 0 0 -47 27 30 14 7 46.7 1 107 -34 -47 39 23 -47 15 35 -47 56 29 -46 58 29 0.01 120 0 0 -47 39 22 14 7 46.9 2 106 -34 -47 51 13 -47 27 31 -48 8 14 -47 10 28 -0.03 121 0 0 -47 50 35 14 7 47.2 3 105 -34 -48 2 23 -47 38 47 -48 19 20 -47 21 48 -0.05 122 0 0 -48 1 10 14 7 47.6 3 105 -35 -48 12 55 -47 49 24 -48 29 49 -47 32 29 -0.06 123 0 0 -48 11 6 14 7 48.1 4 104 -35 -48 22 49 -47 59 23 -48 39 39 -47 42 31 -0.06 124 0 0 -48 20 25 14 7 48.8 5 103 -35 -48 32 5 -48 8 44 -48 48 52 -47 51 56 -0.07 125 0 0 -48 29 6 14 7 49.4 5 102 -35 -48 40 45 -48 17 27 -48 57 29 -48 0 42 -0.07 126 0 0 -48 37 11 14 7 50.2 6 102 -36 -48 48 48 -48 25 34 -49 5 28 -48 8 52 -0.07 127 0 0 -48 44 39 14 7 51.1 7 101 -36 -48 56 14 -48 33 4 -49 12 52 -48 16 25 -0.08 128 0 0 -48 51 32 14 7 52.1 7 100 -36 -49 3 5 -48 39 58 -49 19 41 -48 23 22 -0.08 129 0 0 -48 57 48 14 7 53.1 8 99 -36 -49 9 20 -48 46 17 -49 25 54 -48 29 42 -0.08 130 0 0 -49 3 30 14 7 54.3 9 99 -36 -49 15 0 -48 51 59 -49 31 31 -48 35 27 -0.08 131 0 0 -49 8 36 14 7 55.5 9 98 -37 -49 20 5 -48 57 7 -49 36 35 -48 40 36 -0.08 132 0 0 -49 13 7 14 7 56.8 10 97 -37 -49 24 35 -49 1 39 -49 41 3 -48 45 10 -0.08 133 0 0 -49 17 4 14 7 58.2 11 96 -37 -49 28 31 -49 5 37 -49 44 58 -48 49 9 -0.09 134 0 0 -49 20 26 14 7 59.7 11 96 -37 -49 31 52 -49 9 0 -49 48 18 -48 52 33 -0.09 135 0 0 -49 23 14 14 8 1.2 12 95 -37 -49 34 39 -49 11 49 -49 51 4 -48 55 23 -0.09 136 0 0 -49 25 28 14 8 2.9 13 94 -38 -49 36 53 -49 14 3 -49 53 16 -48 57 38 -0.09 137 0 0 -49 27 7 14 8 4.6 13 93 -38 -49 38 32 -49 15 43 -49 54 55 -48 59 18 -0.09 138 0 0 -49 28 13 14 8 6.4 14 93 -38 -49 39 37 -49 16 48 -49 55 59 -49 0 24 -0.09 139 0 0 -49 28 44 14 8 8.3 15 92 -38 -49 40 8 -49 17 19 -49 56 30 -49 0 56 -0.09 140 0 0 -49 28 41 14 8 10.3 15 91 -38 -49 40 5 -49 17 17 -49 56 28 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Uncertainty in time = +/- 4 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: TYC 5634-01251-1 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 16 25 04.6511 DE: -12 05 17.283 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 16 25 04.6513 DE: -12 05 17.283 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.7 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2235) Vittore asteroid class: approx. diameter [km]: 42 approx. diameter ["]: 0.020 distance from Earth [AU]: 2.86970 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 date of fit: 2023 Feb 07 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): 0.019", 0.003", 86.857° remarks: * orbital elements for (2235)Vittore : Mean anomaly = 87.6124106108 deg Arg. of pericenter = 274.2250936389 deg Long. of node = 205.0150024669 deg Inclination = 18.7805750191 deg Eccentricity = 0.2157834279 Semimajor axis = 3.2065565241 AU Perihelion dist = 2.5146347656 AU Mag: H = 10.74, G = 0.15 Epoch of elements : MJD 60019.59638889 TDT (2023 Mar 16.5964) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Feb07,4.42,2023,3,16,14.314440,-0.075763,0.055246,3.177564,4.334445,-0.005606,0.000599,0.000000,0.000000 -142.0404,-12.1425,-32.55,-1.70,False TYC 5634-01251-1,16.41795863,-12.0881340,0.00,11.68,0.00,0.0,0,,16.43939317,-12.1425294,4.86,0.00,0,0,0 2235,Vittore,16.53,42.1,2.8697,0,0,0.665,13.28,,2.4,0 0,87.5100,2023,3,16,274.2251,205.0150,18.7806,0.21578,3.20656,2.51463,10.75,5.0,0.15 1.718,0.0187,0.0029,87,0.0145,Known errors,-1.00,-1,-1,-1 20230316_1251-1,59990.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:49 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org