IOTA/IOTA-ES occultation update for (2996) Bowman / TYC 1218-00463-1 event on 2024 Oct 21, 13:21 UT Visible from Summary ------- On 2024 Oct 21 UT, the 22.654 km diameter asteroid (2996) Bowman will occult a 11.3 mag star in the constellation Aries for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.96 mag to 16.25 mag (the magnitude of the asteroid) for at most 1.920 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 21, 13:12 - 2024 Oct 21, 13:29 * geocentric midpoint of event [JD]: 2460605.05639508 * magnitude of target star: 11.30 * magnitude drop [mag]: 4.96 * estimated maximum duration [s]: 1.920 * Moon: 78 % sunlit, 42° distance * Sun: 166° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 25 * 1 sigma uncertainty interval [path widths]: +/- 0.18 * 1 sigma uncertainty interval [seconds]: +/- 2.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.019, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.020", 0.002", 70°) * approx speed of asteroid's shadow [km/s]: 11.7962 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1218-00463-1 by 2996 Bowman on 2024 Oct 21 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 72 0 0 10 3 23 13 29 25.4 1 70 -10 10 10 33 9 56 13 10 13 10 9 53 36 .... 73 0 0 10 25 53 13 29 25.1 2 70 -11 10 33 3 10 18 42 10 35 41 10 16 5 -0.39 74 0 0 10 48 41 13 29 24.6 3 70 -12 10 55 52 10 41 29 10 58 30 10 38 52 -0.41 75 0 0 11 11 46 13 29 23.9 4 70 -13 11 18 59 11 4 34 11 21 37 11 1 56 -0.41 76 0 0 11 35 9 13 29 23.0 5 71 -14 11 42 22 11 27 56 11 45 1 11 25 18 -0.42 77 0 0 11 58 48 13 29 22.0 6 71 -15 12 6 2 11 51 35 12 8 41 11 48 56 -0.42 78 0 0 12 22 43 13 29 20.7 7 71 -16 12 29 58 12 15 29 12 32 37 12 12 50 -0.42 79 0 0 12 46 54 13 29 19.2 8 71 -17 12 54 9 12 39 39 12 56 49 12 37 0 -0.42 80 0 0 13 11 19 13 29 17.6 9 71 -18 13 18 35 13 4 4 13 21 15 13 1 24 -0.43 81 0 0 13 35 59 13 29 15.7 10 72 -19 13 43 15 13 28 42 13 45 55 13 26 3 -0.43 82 0 0 14 0 51 13 29 13.6 11 72 -20 14 8 9 13 53 35 14 10 49 13 50 55 -0.43 83 0 0 14 25 57 13 29 11.4 12 72 -21 14 33 15 14 18 40 14 35 56 14 15 59 -0.43 84 0 0 14 51 15 13 29 9.0 13 72 -22 14 58 34 14 43 57 15 1 15 14 41 17 -0.43 85 0 0 15 16 45 13 29 6.3 15 73 -23 15 24 4 15 9 26 15 26 45 15 6 45 -0.43 86 0 0 15 42 26 13 29 3.5 16 73 -24 15 49 46 15 35 6 15 52 27 15 32 25 -0.43 87 0 0 16 8 16 13 29 0.5 17 73 -25 16 15 37 16 0 56 16 18 19 15 58 15 -0.43 88 0 0 16 34 17 13 28 57.3 18 74 -26 16 41 38 16 26 56 16 44 20 16 24 15 -0.43 89 0 0 17 0 26 13 28 54.0 19 74 -27 17 7 48 16 53 5 17 10 30 16 50 23 -0.43 90 0 0 17 26 44 13 28 50.5 20 74 -28 17 34 6 17 19 22 17 36 48 17 16 40 -0.43 91 0 0 17 53 9 13 28 46.8 21 75 -29 18 0 32 17 45 47 18 3 14 17 43 5 -0.43 92 0 0 18 19 41 13 28 42.9 22 75 -30 18 27 5 18 12 18 18 29 47 18 9 36 -0.43 93 0 0 18 46 20 13 28 38.8 23 76 -31 18 53 44 18 38 56 18 56 26 18 36 14 -0.43 94 0 0 19 13 3 13 28 34.6 24 76 -32 19 20 28 19 5 39 19 23 11 19 2 57 -0.43 95 0 0 19 39 52 13 28 30.2 25 76 -33 19 47 17 19 32 27 19 50 0 19 29 45 -0.43 96 0 0 20 6 44 13 28 25.7 26 77 -34 20 14 10 19 59 20 20 16 53 19 56 37 -0.43 97 0 0 20 33 40 13 28 21.0 27 77 -35 20 41 6 20 26 15 20 43 49 20 23 32 -0.43 98 0 0 21 0 39 13 28 16.2 28 78 -35 21 8 5 20 53 13 21 10 49 20 50 30 -0.43 99 0 0 21 27 40 13 28 11.2 29 78 -36 21 35 6 21 20 14 21 37 50 21 17 30 -0.43 100 0 0 21 54 41 13 28 6.0 30 79 -37 22 2 8 21 47 15 22 4 52 21 44 32 -0.43 101 0 0 22 21 44 13 28 0.8 31 79 -38 22 29 11 22 14 17 22 31 55 22 11 34 -0.43 102 0 0 22 48 46 13 27 55.4 32 80 -39 22 56 13 22 41 19 22 58 57 22 38 36 -0.43 103 0 0 23 15 47 13 27 49.8 33 80 -40 23 23 15 23 8 20 23 25 59 23 5 37 -0.44 104 0 0 23 42 47 13 27 44.2 34 81 -41 23 50 15 23 35 20 23 52 59 23 32 36 -0.44 105 0 0 24 9 45 13 27 38.4 35 81 -42 24 17 13 24 2 18 24 19 57 23 59 34 -0.44 106 0 0 24 36 40 13 27 32.4 35 82 -42 24 44 8 24 29 12 24 46 52 24 26 28 -0.44 107 0 0 25 3 31 13 27 26.4 36 83 -43 25 11 0 24 56 3 25 13 44 24 53 20 -0.44 108 0 0 25 30 18 13 27 20.3 37 83 -44 25 37 47 25 22 50 25 40 31 25 20 7 -0.44 109 0 0 25 57 1 13 27 14.0 38 84 -45 26 4 29 25 49 33 26 7 14 25 46 49 -0.44 110 0 0 26 23 38 13 27 7.7 39 85 -46 26 31 6 26 16 9 26 33 50 26 13 26 -0.44 111 0 0 26 50 8 13 27 1.2 40 86 -46 26 57 37 26 42 40 27 0 21 26 39 56 -0.44 112 0 0 27 16 32 13 26 54.7 41 86 -47 27 24 1 27 9 4 27 26 45 27 6 20 -0.44 113 0 0 27 42 49 13 26 48.1 42 87 -48 27 50 18 27 35 21 27 53 2 27 32 37 -0.44 114 0 0 28 8 58 13 26 41.3 43 88 -48 28 16 26 28 1 30 28 19 11 27 58 46 -0.44 115 0 0 28 34 58 13 26 34.5 44 89 -49 28 42 27 28 27 30 28 45 11 28 24 47 -0.44 116 0 0 29 0 50 13 26 27.7 44 90 -50 29 8 18 28 53 22 29 11 2 28 50 38 -0.44 117 0 0 29 26 31 13 26 20.7 45 90 -50 29 33 59 29 19 4 29 36 43 29 16 20 -0.44 118 0 0 29 52 3 13 26 13.7 46 91 -51 29 59 31 29 44 35 30 2 15 29 41 52 -0.44 119 0 0 30 17 24 13 26 6.6 47 92 -52 30 24 51 30 9 57 30 27 35 30 7 13 -0.44 120 0 0 30 42 33 13 25 59.5 48 93 -52 30 50 1 30 35 7 30 52 45 30 32 23 -0.44 121 0 0 31 7 32 13 25 52.3 49 94 -53 31 14 59 31 0 5 31 17 43 30 57 22 -0.44 122 0 0 31 32 18 13 25 45.1 49 95 -54 31 39 44 31 24 51 31 42 28 31 22 8 -0.44 123 0 0 31 56 51 13 25 37.8 50 97 -54 32 4 17 31 49 25 32 7 1 31 46 42 -0.44 124 0 0 32 21 11 13 25 30.5 51 98 -55 32 28 37 32 13 46 32 31 21 32 11 3 -0.44 125 0 0 32 45 18 13 25 23.1 52 99 -55 32 52 44 32 37 53 32 55 27 32 35 10 -0.44 126 0 0 33 9 11 13 25 15.7 52 100 -56 33 16 37 33 1 46 33 19 20 32 59 4 -0.44 127 0 0 33 32 50 13 25 8.3 53 101 -56 33 40 15 33 25 26 33 42 58 33 22 43 -0.44 128 0 0 33 56 14 13 25 0.8 54 103 -56 34 3 39 33 48 50 34 6 21 33 46 8 -0.44 129 0 0 34 19 23 13 24 53.4 54 104 -57 34 26 47 34 12 0 34 29 30 34 9 17 -0.44 130 0 0 34 42 17 13 24 45.9 55 105 -57 34 49 40 34 34 54 34 52 23 34 32 12 -0.45 131 0 0 35 4 55 13 24 38.3 56 107 -58 35 12 18 34 57 33 35 15 0 34 54 51 -0.45 132 0 0 35 27 17 13 24 30.8 56 108 -58 35 34 40 35 19 55 35 37 22 35 17 13 -0.45 133 0 0 35 49 23 13 24 23.3 57 109 -58 35 56 45 35 42 1 35 59 27 35 39 20 -0.45 134 0 0 36 11 12 13 24 15.7 58 111 -58 36 18 33 36 3 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-0.46 -100 0 0 40 28 55 13 13 13.1 12 286 2 40 36 7 40 21 43 40 38 46 40 19 5 -0.47 - 99 0 0 40 10 35 13 13 11.4 11 287 3 40 17 48 40 3 22 40 20 27 40 0 44 -0.47 - 98 0 0 39 51 54 13 13 9.8 10 288 4 39 59 8 39 44 41 40 1 47 39 42 2 -0.47 - 97 0 0 39 32 53 13 13 8.3 9 288 4 39 40 8 39 25 39 39 42 47 39 23 0 -0.47 - 96 0 0 39 13 32 13 13 7.0 9 289 5 39 20 47 39 6 17 39 23 27 39 3 37 -0.48 - 95 0 0 38 53 50 13 13 5.7 8 289 6 39 1 6 38 46 34 39 3 46 38 43 54 -0.48 - 94 0 0 38 33 48 13 13 4.6 7 290 7 38 41 5 38 26 31 38 43 45 38 23 51 -0.49 - 93 0 0 38 13 26 13 13 3.6 6 291 8 38 20 44 38 6 9 38 23 24 38 3 28 -0.49 - 92 0 0 37 52 44 13 13 2.7 5 291 9 38 0 3 37 45 26 38 2 44 37 42 46 -0.50 - 91 0 0 37 31 43 13 13 2.0 4 292 10 37 39 2 37 24 24 37 41 43 37 21 43 -0.52 - 90 0 0 37 10 22 13 13 1.3 3 293 10 37 17 42 37 3 2 37 20 23 37 0 21 -0.54 - 89 0 0 36 48 41 13 13 0.8 3 293 11 36 56 2 36 41 21 36 58 44 36 38 40 -0.57 - 88 0 0 36 26 42 13 13 0.5 2 294 12 36 34 3 36 19 21 36 36 45 36 16 39 -0.64 - 87 0 0 36 4 23 13 13 0.3 1 294 13 36 11 46 35 57 1 36 14 28 35 54 20 -0.87 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 1218-00463-1 * constellation : Aries * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 02 28 39.9926 DE: +19 54 58.402 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 02 28 39.9926 DE: +19 54 58.402 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.3 * B mag [mag]: 11.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2996) Bowman asteroid class: approx. diameter [km]: 23 approx. diameter ["]: 0.017 distance from Earth [AU]: 1.84570 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#52 date of fit: 2023 Apr 24 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): 0.020", 0.002", 70.121° remarks: * orbital elements for (2996)Bowman : Mean anomaly = 116.5064981691 deg Arg. of pericenter = 302.9178436580 deg Long. of node = 334.2575647282 deg Inclination = 3.6608037263 deg Eccentricity = 0.0304070425 Semimajor axis = 2.7823938247 AU Perihelion dist = 2.6977894575 AU Mag: H = 12.25, G = 0.15 Epoch of elements : MJD 60604.55639271 TDT (2024 Oct 21.5564) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#522023Apr24,1.92,2024,10,21,13.353482,-0.099061,0.398586,-6.461538,-1.605920,-0.001102,-0.000886,0.000001,0.000000 166.7362,20.0290,-24.17,-10.99,False TYC 1218-00463-1,2.47777573,19.9162228,11.82,11.30,11.02,0.0,0,,2.50127005,20.0290026,4.96,4.79,0,0,0 2996,Bowman,16.25,22.654,1.8457,0,0,-2.184,-7.65,,1.2,0 0,116.3883,2024,10,21,302.9178,334.2576,3.6608,0.03041,2.78239,2.69779,12.25,5.0,0.15 1.183,0.0197,0.0024,70,0.0031,Known errors,1.17,0,-1,-1 20241021_0463-1,60140.65 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:36 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org