IOTA/IOTA-ES occultation update for (4562) Poleungkuk / TYC 250-00348-1 event on 2024 Mar 17, 17:07 UT Visible from Summary ------- On 2024 Mar 17 UT, the 15.13 km diameter asteroid (4562) Poleungkuk will occult a 11.5 mag star in the constellation Sextans for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.62 mag to 17.15 mag (the magnitude of the asteroid) for at most 1.430 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 Mar 17, 16:58 - 2024 Mar 17, 17:17 * geocentric midpoint of event [JD]: 2460387.21388696 * magnitude of target star: 11.54 * magnitude drop [mag]: 5.62 * estimated maximum duration [s]: 1.430 * Moon: 56 % sunlit, 59° distance * Sun: 154° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 16 * 1 sigma uncertainty interval [path widths]: +/- 0.20 * 1 sigma uncertainty interval [seconds]: +/- 1.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.002", 111°) * approx speed of asteroid's shadow [km/s]: 10.6021 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 250-00348-1 by 4562 Poleungkuk on 2024 Mar 17 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 - 13 0 0 3 17 38 17 17 23.2 0 84 26 3 22 3 3 13 13 3 23 48 3 11 27 .... - 12 0 0 3 23 38 17 17 23.0 1 84 25 3 28 2 3 19 13 3 29 48 3 17 28 0.21 - 11 0 0 3 29 10 17 17 22.7 2 84 24 3 33 34 3 24 46 3 35 20 3 23 0 0.28 - 10 0 0 3 34 14 17 17 22.1 3 84 23 3 38 38 3 29 50 3 40 23 3 28 5 0.31 - 9 0 0 3 38 50 17 17 21.4 4 84 22 3 43 14 3 34 26 3 44 59 3 32 41 0.33 - 8 0 0 3 42 59 17 17 20.5 5 84 21 3 47 23 3 38 35 3 49 8 3 36 50 0.34 - 7 0 0 3 46 39 17 17 19.3 6 84 20 3 51 3 3 42 15 3 52 48 3 40 30 0.34 - 6 0 0 3 49 52 17 17 18.0 7 84 19 3 54 15 3 45 28 3 56 0 3 43 43 0.35 - 5 0 0 3 52 37 17 17 16.5 8 84 18 3 57 0 3 48 13 3 58 45 3 46 28 0.35 - 4 0 0 3 54 54 17 17 14.8 9 85 17 3 59 17 3 50 31 4 1 2 3 48 46 0.36 - 3 0 0 3 56 44 17 17 12.9 10 85 16 4 1 7 3 52 20 4 2 52 3 50 36 0.36 - 2 0 0 3 58 6 17 17 10.8 11 85 15 4 2 29 3 53 43 4 4 14 3 51 58 0.36 - 1 0 0 3 59 0 17 17 8.6 12 85 14 4 3 23 3 54 37 4 5 8 3 52 52 0.36 - 0 0 0 3 59 27 17 17 6.1 13 85 13 4 3 50 3 55 4 4 5 35 3 53 19 0.36 1 0 0 3 59 27 17 17 3.5 14 85 12 4 3 50 3 55 4 4 5 35 3 53 19 0.36 2 0 0 3 58 59 17 17 0.7 15 85 11 4 3 22 3 54 36 4 5 7 3 52 51 0.36 3 0 0 3 58 4 17 16 57.7 16 85 10 4 2 27 3 53 41 4 4 12 3 51 56 0.36 4 0 0 3 56 42 17 16 54.6 17 85 9 4 1 5 3 52 19 4 2 50 3 50 34 0.36 5 0 0 3 54 53 17 16 51.2 18 85 8 3 59 16 3 50 30 4 1 1 3 48 45 0.36 6 0 0 3 52 37 17 16 47.7 19 85 7 3 57 0 3 48 13 3 58 44 3 46 28 0.37 7 0 0 3 49 53 17 16 44.0 20 85 6 3 54 16 3 45 30 3 56 1 3 43 45 0.37 8 0 0 3 46 43 17 16 40.1 21 85 5 3 51 6 3 42 19 3 52 51 3 40 35 0.37 9 0 0 3 43 6 17 16 36.1 22 85 4 3 47 29 3 38 42 3 49 14 3 36 57 0.37 10 0 0 3 39 2 17 16 31.9 23 85 3 3 43 25 3 34 38 3 45 10 3 32 53 0.37 11 0 0 3 34 31 17 16 27.5 24 85 2 3 38 55 3 30 7 3 40 40 3 28 22 0.37 12 0 0 3 29 34 17 16 22.9 25 85 1 3 33 57 3 25 10 3 35 42 3 23 25 0.37 13 0 0 3 24 10 17 16 18.2 26 85 0 3 28 34 3 19 46 3 30 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59 17.9 20 297 -40 -39 21 15 -39 30 30 -39 19 25 -39 32 21 0.39 140 0 0 -39 41 11 16 59 14.9 20 296 -40 -39 36 34 -39 45 48 -39 34 43 -39 47 38 0.39 141 0 0 -39 56 8 16 59 11.9 19 295 -39 -39 51 32 -40 0 45 -39 49 42 -40 2 35 0.39 142 0 0 -40 10 46 16 59 9.1 18 295 -38 -40 6 10 -40 15 22 -40 4 20 -40 17 12 0.39 143 0 0 -40 25 3 16 59 6.4 17 294 -37 -40 20 28 -40 29 38 -40 18 38 -40 31 28 0.39 144 0 0 -40 39 0 16 59 3.9 16 293 -37 -40 34 25 -40 43 35 -40 32 35 -40 45 24 0.39 145 0 0 -40 52 36 16 59 1.5 16 293 -36 -40 48 2 -40 57 11 -40 46 13 -40 59 0 0.39 146 0 0 -41 5 52 16 58 59.2 15 292 -35 -41 1 18 -41 10 26 -40 59 29 -41 12 15 0.39 147 0 0 -41 18 48 16 58 57.0 14 291 -35 -41 14 15 -41 23 21 -41 12 26 -41 25 10 0.39 148 0 0 -41 31 23 16 58 55.0 13 291 -34 -41 26 50 -41 35 56 -41 25 2 -41 37 45 0.39 149 0 0 -41 43 38 16 58 53.0 13 290 -33 -41 39 6 -41 48 10 -41 37 17 -41 49 59 0.39 150 0 0 -41 55 32 16 58 51.2 12 289 -32 -41 51 1 -42 0 4 -41 49 12 -42 1 53 0.39 151 0 0 -42 7 6 16 58 49.6 11 289 -32 -42 2 35 -42 11 38 -42 0 47 -42 13 26 0.39 152 0 0 -42 18 20 16 58 48.0 10 288 -31 -42 13 49 -42 22 51 -42 12 1 -42 24 39 0.39 153 0 0 -42 29 13 16 58 46.5 9 287 -30 -42 24 43 -42 33 44 -42 22 55 -42 35 32 0.39 154 0 0 -42 39 46 16 58 45.2 9 287 -30 -42 35 16 -42 44 16 -42 33 29 -42 46 4 0.39 155 0 0 -42 49 59 16 58 44.0 8 286 -29 -42 45 29 -42 54 28 -42 43 42 -42 56 16 0.39 156 0 0 -42 59 51 16 58 42.9 7 285 -28 -42 55 22 -43 4 20 -42 53 34 -43 6 7 0.39 157 0 0 -43 9 22 16 58 41.9 6 284 -28 -43 4 54 -43 13 51 -43 3 7 -43 15 38 0.39 158 0 0 -43 18 34 16 58 41.0 6 284 -27 -43 14 6 -43 23 2 -43 12 19 -43 24 49 0.40 159 0 0 -43 27 25 16 58 40.2 5 283 -26 -43 22 57 -43 31 53 -43 21 11 -43 33 40 0.40 160 0 0 -43 35 56 16 58 39.6 4 282 -25 -43 31 29 -43 40 24 -43 29 42 -43 42 10 0.40 161 0 0 -43 44 7 16 58 39.0 4 282 -25 -43 39 40 -43 48 34 -43 37 53 -43 50 21 0.40 162 0 0 -43 51 57 16 58 38.5 3 281 -24 -43 47 31 -43 56 24 -43 45 44 -43 58 10 0.41 163 0 0 -43 59 28 16 58 38.2 2 280 -23 -43 55 1 -44 3 54 -43 53 15 -44 5 40 0.42 164 0 0 -44 6 38 16 58 38.0 1 280 -23 -44 2 12 -44 11 4 -44 0 26 -44 12 50 0.44 165 0 0 -44 13 28 16 58 37.8 1 279 -22 -44 9 2 -44 17 54 -44 7 16 -44 19 40 0.52 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 14.2 Data for the target star ------------------------ * name: TYC 250-00348-1 * constellation : Sextans * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 10 07 18.2346 DE: +06 09 02.527 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 10 07 18.2346 DE: +06 09 02.527 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.5 * B mag [mag]: 11.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (4562) Poleungkuk asteroid class: approx. diameter [km]: 15 approx. diameter ["]: 0.012 distance from Earth [AU]: 1.78180 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#51 date of fit: 2023 Apr 25 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): 0.015", 0.002", 111.4° remarks: * orbital elements for (4562)Poleungkuk : Mean anomaly = 232.6520747087 deg Arg. of pericenter = 35.8370931669 deg Long. of node = 263.8757671082 deg Inclination = 3.4207445532 deg Eccentricity = 0.1414646807 Semimajor axis = 2.4715524194 AU Perihelion dist = 2.1219150455 AU Mag: H = 13.11, G = 0.15 Epoch of elements : MJD 60386.71388641 TDT (2024 Mar 17.7139) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#512023Apr25,1.43,2024,3,17,17.133287,-0.141784,-0.321508,-5.474017,2.417568,0.002527,-0.000466,0.000001,-0.000001 79.3832,6.0313,-74.96,-0.95,False TYC 250-00348-1,10.12173185,6.1507019,11.80,11.54,11.40,0.0,0,,10.14311925,6.0313247,5.61,5.31,0,0,0 4562,Poleungkuk,17.15,15.130,1.7818,0,0,-1.810,11.93,,0.8,0 0,232.4710,2024,3,17,35.8371,263.8758,3.4207,0.14146,2.47155,2.12192,13.11,5.0,0.15 1.199,0.0153,0.0022,111,0.0023,Known errors,0.89,0,-1,-1 20240317_0348-1,60139.24 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 05:44 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org