IOTA/IOTA-ES occultation update for (2276) Warck / UCAC4 343-119694 event on 2024 Oct 29, 10:23 UT Visible from Summary ------- On 2024 Oct 29 UT, the 15.8193593877345 km diameter asteroid (2276) Warck will occult a 11.9 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.75 mag to 17.63 mag (the magnitude of the asteroid) for at most 0.390 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 Oct 29, 10:20 - 2024 Oct 29, 10:25 * geocentric midpoint of event [JD]: 2460612.93274187 * magnitude of target star: 11.89 * magnitude drop [mag]: 5.75 * estimated maximum duration [s]: 0.390 * Moon: 8 % sunlit, 85° distance * Sun: 51° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 16 * 1 sigma uncertainty interval [path widths]: +/- 0.14 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.001", 90°) * approx speed of asteroid's shadow [km/s]: 40.5738 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 343-119694 by 2276 Warck on 2024 Oct 29 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 - 10 0 0 12 13 35 10 20 35.4 1 112 50 12 8 48 12 18 22 12 7 27 12 19 42 .... - 9 0 0 11 49 41 10 20 35.4 2 112 51 11 44 54 11 54 28 11 43 34 11 55 48 -0.09 - 8 0 0 11 25 46 10 20 35.6 3 113 52 11 20 59 11 30 33 11 19 39 11 31 54 -0.13 - 7 0 0 11 1 52 10 20 35.8 4 113 53 10 57 5 11 6 39 10 55 45 11 7 59 -0.15 - 6 0 0 10 37 58 10 20 36.0 5 113 54 10 33 11 10 42 44 10 31 51 10 44 5 -0.16 - 5 0 0 10 14 4 10 20 36.3 6 113 55 10 9 18 10 18 51 10 7 58 10 20 11 -0.17 - 4 0 0 9 50 13 10 20 36.6 7 113 56 9 45 26 9 55 0 9 44 6 9 56 20 -0.18 - 3 0 0 9 26 24 10 20 37.0 8 114 57 9 21 37 9 31 10 9 20 17 9 32 30 -0.18 - 2 0 0 9 2 37 10 20 37.5 9 114 58 8 57 51 9 7 24 8 56 31 9 8 44 -0.18 - 1 0 0 8 38 54 10 20 38.0 10 114 59 8 34 8 8 43 40 8 32 48 8 45 0 -0.19 0 0 0 8 15 15 10 20 38.6 12 114 60 8 10 29 8 20 1 8 9 9 8 21 21 -0.19 1 0 0 7 51 40 10 20 39.2 13 114 61 7 46 54 7 56 26 7 45 34 7 57 46 -0.19 2 0 0 7 28 11 10 20 39.9 14 114 62 7 23 25 7 32 56 7 22 5 7 34 16 -0.19 3 0 0 7 4 47 10 20 40.6 15 114 63 7 0 1 7 9 32 6 58 41 7 10 52 -0.19 4 0 0 6 41 29 10 20 41.4 16 115 64 6 36 44 6 46 15 6 35 24 6 47 34 -0.20 5 0 0 6 18 18 10 20 42.3 17 115 65 6 13 33 6 23 4 6 12 14 6 24 23 -0.20 6 0 0 5 55 15 10 20 43.2 18 115 66 5 50 30 6 0 0 5 49 11 6 1 20 -0.20 7 0 0 5 32 20 10 20 44.1 19 115 66 5 27 35 5 37 5 5 26 16 5 38 24 -0.20 8 0 0 5 9 33 10 20 45.1 20 115 67 5 4 48 5 14 17 5 3 29 5 15 37 -0.20 9 0 0 4 46 55 10 20 46.2 21 115 68 4 42 11 4 51 39 4 40 51 4 52 59 -0.20 10 0 0 4 24 27 10 20 47.3 22 115 69 4 19 43 4 29 11 4 18 23 4 30 30 -0.20 11 0 0 4 2 8 10 20 48.4 23 115 70 3 57 25 4 6 52 3 56 6 4 8 11 -0.20 12 0 0 3 40 1 10 20 49.6 24 116 71 3 35 17 3 44 44 3 33 58 3 46 3 -0.20 13 0 0 3 18 4 10 20 50.9 25 116 71 3 13 21 3 22 48 3 12 2 3 24 7 -0.20 14 0 0 2 56 19 10 20 52.2 26 116 72 2 51 37 3 1 2 2 50 18 3 2 21 -0.20 15 0 0 2 34 47 10 20 53.6 28 116 73 2 30 4 2 39 29 2 28 45 2 40 48 -0.20 16 0 0 2 13 26 10 20 55.0 29 116 73 2 8 44 2 18 9 2 7 26 2 19 28 -0.20 17 0 0 1 52 19 10 20 56.4 30 116 74 1 47 37 1 57 1 1 46 19 1 58 20 -0.20 18 0 0 1 31 26 10 20 57.9 31 116 75 1 26 44 1 36 7 1 25 26 1 37 26 -0.21 19 0 0 1 10 46 10 20 59.5 32 116 75 1 6 5 1 15 27 1 4 46 1 16 46 -0.21 20 0 0 0 50 21 10 21 1.1 33 116 75 0 45 40 0 55 1 0 44 21 0 56 20 -0.21 21 0 0 0 30 10 10 21 2.7 34 117 76 0 25 30 0 34 51 0 24 11 0 36 9 -0.21 22 0 0 0 10 15 10 21 4.4 35 117 76 0 5 35 0 14 55 0 4 16 0 16 13 -0.21 23 0 0 - 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1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.018", 0.001", 89.653° remarks: * orbital elements for (2276)Warck : Mean anomaly = 13.9526301255 deg Arg. of pericenter = 55.1196443121 deg Long. of node = 215.2914995443 deg Inclination = 2.4688086020 deg Eccentricity = 0.1715489844 Semimajor axis = 2.3742433681 AU Perihelion dist = 1.9669443297 AU Mag: H = 13.10, G = 0.15 Epoch of elements : MJD 60612.43274167 TDT (2024 Oct 29.4327) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Apr24,0.39,2024,10,29,10.385805,0.004084,0.210439,22.895132,-0.517692,0.004193,0.000039,-0.000001,0.000000 73.4672,-21.4889,20.14,-13.68,False UCAC4 343-119694,17.80870853,-21.4801011,12.75,11.89,11.43,0.1,0,,17.83321623,-21.4889392,5.74,5.76,0,0,0 2276,Warck,17.63,15.997,2.4493,0,0,5.889,-1.85,,1.0,0 0,13.8360,2024,10,29,55.1196,215.2915,2.4688,0.17155,2.37424,1.96694,13.10,5.0,0.15 1.140,0.0180,0.0011,90,0.0013,Known errors,0.87,0,-1,-1 20241029_119694,60140.67 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:59 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org