IOTA/IOTA-ES occultation update for (3363) Bowen / TYC 4954-00437-1 event on 2024 Dec 09, 20:33 UT Visible from Summary ------- On 2024 Dec 09 UT, the 9.31331752984994 km diameter asteroid (3363) Bowen will occult a 10.5 mag star in the constellation Virgo for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.11 mag to 17.57 mag (the magnitude of the asteroid) for at most 0.320 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: 96 * date and approx. time of event: 2024 Dec 09, 20:29 - 2024 Dec 09, 20:36 * geocentric midpoint of event [JD]: 2460654.35654083 * magnitude of target star: 10.46 * magnitude drop [mag]: 7.11 * estimated maximum duration [s]: 0.320 * Moon: 63 % sunlit, 172° distance * Sun: 67° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 10 * 1 sigma uncertainty interval [path widths]: +/- 0.42 * 1 sigma uncertainty interval [seconds]: +/- 0.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.002", 109°) * approx speed of asteroid's shadow [km/s]: 29.4544 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 4954-00437-1 by 3363 Bowen on 2024 Dec 9 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 75 0 0 6 13 56 20 29 56.0 1 95 -61 6 11 15 6 16 37 6 8 57 6 18 55 .... 76 0 0 6 7 59 20 29 56.1 2 95 -60 6 5 18 6 10 41 6 3 0 6 12 58 0.21 77 0 0 6 1 39 20 29 56.3 3 95 -60 5 58 57 6 4 20 5 56 39 6 6 38 0.24 78 0 0 5 54 54 20 29 56.5 4 96 -59 5 52 12 5 57 35 5 49 54 5 59 54 0.25 79 0 0 5 47 45 20 29 56.8 5 96 -58 5 45 4 5 50 27 5 42 45 5 52 45 0.25 80 0 0 5 40 13 20 29 57.1 6 96 -57 5 37 31 5 42 54 5 35 12 5 45 13 0.26 81 0 0 5 32 16 20 29 57.6 7 96 -56 5 29 34 5 34 58 5 27 15 5 37 16 0.26 82 0 0 5 23 55 20 29 58.1 8 96 -55 5 21 13 5 26 38 5 18 55 5 28 56 0.26 83 0 0 5 15 11 20 29 58.6 9 96 -54 5 12 29 5 17 53 5 10 10 5 20 12 0.26 84 0 0 5 6 3 20 29 59.3 10 96 -53 5 3 21 5 8 46 5 1 2 5 11 4 0.26 85 0 0 4 56 31 20 30 0.0 11 96 -52 4 53 49 4 59 14 4 51 30 5 1 33 0.27 86 0 0 4 46 36 20 30 0.7 12 96 -51 4 43 53 4 49 19 4 41 34 4 51 38 0.27 87 0 0 4 36 17 20 30 1.6 13 96 -50 4 33 34 4 39 0 4 31 15 4 41 20 0.27 88 0 0 4 25 35 20 30 2.5 14 96 -49 4 22 52 4 28 18 4 20 33 4 30 38 0.27 89 0 0 4 14 30 20 30 3.5 15 96 -49 4 11 46 4 17 13 4 9 27 4 19 32 0.27 90 0 0 4 3 1 20 30 4.6 16 97 -48 4 0 17 4 5 44 3 57 57 4 8 4 0.27 91 0 0 3 51 9 20 30 5.7 17 97 -47 3 48 25 3 53 53 3 46 5 3 56 13 0.27 92 0 0 3 38 54 20 30 6.9 18 97 -46 3 36 10 3 41 38 3 33 50 3 43 58 0.27 93 0 0 3 26 16 20 30 8.1 19 97 -45 3 23 32 3 29 0 3 21 12 3 31 21 0.27 94 0 0 3 13 16 20 30 9.5 20 97 -44 3 10 31 3 16 0 3 8 11 3 18 20 0.27 95 0 0 2 59 52 20 30 10.9 21 97 -43 2 57 8 3 2 37 2 54 47 3 4 58 0.27 96 0 0 2 46 7 20 30 12.4 22 97 -42 2 43 22 2 48 52 2 41 1 2 51 13 0.27 97 0 0 2 31 59 20 30 13.9 23 97 -41 2 29 14 2 34 44 2 26 53 2 37 5 0.27 98 0 0 2 17 29 20 30 15.5 24 97 -40 2 14 44 2 20 14 2 12 23 2 22 36 0.27 99 0 0 2 2 37 20 30 17.2 25 97 -39 1 59 52 2 5 23 1 57 30 2 7 44 0.27 100 0 0 1 47 24 20 30 19.0 26 97 -38 1 44 38 1 50 9 1 42 16 1 52 31 0.27 101 0 0 1 31 48 20 30 20.8 27 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0 -37 15 37 20 36 45.3 16 276 74 -37 18 17 -37 12 57 -37 20 34 -37 10 40 0.28 -123 0 0 -37 16 28 20 36 46.2 15 275 74 -37 19 8 -37 13 48 -37 21 24 -37 11 31 0.28 -122 0 0 -37 16 58 20 36 46.9 14 274 74 -37 19 38 -37 14 18 -37 21 55 -37 12 1 0.28 -121 0 0 -37 17 9 20 36 47.7 13 274 73 -37 19 49 -37 14 29 -37 22 6 -37 12 12 0.28 -120 0 0 -37 17 1 20 36 48.4 13 273 73 -37 19 41 -37 14 21 -37 21 57 -37 12 4 0.28 -119 0 0 -37 16 32 20 36 49.1 12 272 72 -37 19 12 -37 13 52 -37 21 29 -37 11 36 0.28 -118 0 0 -37 15 45 20 36 49.7 11 272 72 -37 18 25 -37 13 5 -37 20 42 -37 10 48 0.28 -117 0 0 -37 14 37 20 36 50.3 10 271 71 -37 17 18 -37 11 57 -37 19 34 -37 9 41 0.28 -116 0 0 -37 13 11 20 36 50.8 9 271 71 -37 15 51 -37 10 31 -37 18 8 -37 8 14 0.28 -115 0 0 -37 11 24 20 36 51.3 9 270 70 -37 14 4 -37 8 44 -37 16 21 -37 6 27 0.28 -114 0 0 -37 9 18 20 36 51.7 8 269 69 -37 11 58 -37 6 38 -37 14 15 -37 4 21 0.29 -113 0 0 -37 6 53 20 36 52.1 7 269 69 -37 9 33 -37 4 12 -37 11 50 -37 1 55 0.29 -112 0 0 -37 4 8 20 36 52.5 6 268 68 -37 6 48 -37 1 27 -37 9 5 -36 59 10 0.29 -111 0 0 -37 1 3 20 36 52.8 5 268 68 -37 3 43 -36 58 23 -37 6 1 -36 56 6 0.30 -110 0 0 -36 57 39 20 36 53.1 5 267 67 -37 0 19 -36 54 58 -37 2 37 -36 52 41 0.30 -109 0 0 -36 53 55 20 36 53.3 4 266 66 -36 56 36 -36 51 15 -36 58 53 -36 48 57 0.31 -108 0 0 -36 49 52 20 36 53.5 3 266 66 -36 52 33 -36 47 11 -36 54 50 -36 44 54 0.32 -107 0 0 -36 45 29 20 36 53.7 2 265 65 -36 48 10 -36 42 49 -36 50 28 -36 40 31 0.34 -106 0 0 -36 40 47 20 36 53.8 1 265 64 -36 43 28 -36 38 6 -36 45 46 -36 35 49 0.38 -105 0 0 -36 35 45 20 36 53.8 1 264 64 -36 38 26 -36 33 4 -36 40 44 -36 30 47 0.52 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 4954-00437-1 * constellation : Virgo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 12 39 41.9385 DE: -05 00 50.487 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 12 39 41.9385 DE: -05 00 50.487 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 10.5 * B mag [mag]: 11.0 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3363) Bowen asteroid class: approx. diameter [km]: 9 approx. diameter ["]: 0.005 distance from Earth [AU]: 2.76700 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#53 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): 0.014", 0.002", 109.088° remarks: * orbital elements for (3363)Bowen : Mean anomaly = 28.1214698376 deg Arg. of pericenter = 313.1674019988 deg Long. of node = 183.0880827313 deg Inclination = 3.3366144603 deg Eccentricity = 0.0971112149 Semimajor axis = 2.7774006125 AU Perihelion dist = 2.5076838647 AU Mag: H = 12.30, G = 0.15 Epoch of elements : MJD 60653.85654100 TDT (2024 Dec 09.8565) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#532023Feb07,0.32,2024,12,9,20.556980,-0.094715,-0.242791,15.479525,-6.063983,-0.004966,0.002083,0.000000,0.000000 162.8155,-5.1501,-130.17,-22.92,False TYC 4954-00437-1,12.66164954,-5.0140240,10.95,10.46,10.20,0.1,0,,12.68292201,-5.1500586,7.11,6.92,0,0,0 3363,Bowen,17.57,9.514,2.7670,0,0,3.293,-19.27,,1.0,0 0,27.9391,2024,12,9,313.1674,183.0881,3.3366,0.09711,2.77740,2.50768,12.30,5.0,0.15 1.428,0.0137,0.0019,109,0.0020,Known errors,1.10,0,-1,-1 20241209_0437-1,60140.73 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:36 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org