IOTA/IOTA-ES occultation update for (2439) Ulugbek / TYC 267-00513-1 event on 2024 Jun 13, 11:47 UT Visible from Summary ------- On 2024 Jun 13 UT, the 21.0142591572517 km diameter asteroid (2439) Ulugbek will occult a 9.2 mag star in the constellation Leo for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 8.58 mag to 17.74 mag (the magnitude of the asteroid) for at most 1.220 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 Jun 13, 11:41 - 2024 Jun 13, 11:53 * geocentric midpoint of event [JD]: 2460474.99133766 * magnitude of target star: 9.16 * magnitude drop [mag]: 8.58 * estimated maximum duration [s]: 1.220 * Moon: 44 % sunlit, 6° distance * Sun: 88° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 22 * 1 sigma uncertainty interval [path widths]: +/- 0.28 * 1 sigma uncertainty interval [seconds]: +/- 2.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.016, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.017", 0.003", 114°) * approx speed of asteroid's shadow [km/s]: 17.4447 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 267-00513-1 by 2439 Ulugbek on 2024 Jun 13 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 2 0 0 33 53 25 11 41 31.8 0 86 79 33 47 34 33 59 17 33 44 16 34 2 36 .... 3 0 0 33 57 9 11 41 31.9 1 86 79 33 51 18 34 3 0 33 47 59 34 6 19 -0.14 4 0 0 34 0 31 11 41 32.0 2 87 79 33 54 40 34 6 22 33 51 22 34 9 41 -0.16 5 0 0 34 3 32 11 41 32.3 3 87 79 33 57 41 34 9 23 33 54 23 34 12 41 -0.16 6 0 0 34 6 11 11 41 32.6 4 88 79 34 0 21 34 12 2 33 57 3 34 15 21 -0.17 7 0 0 34 8 29 11 41 33.0 5 88 79 34 2 39 34 14 20 33 59 21 34 17 38 -0.17 8 0 0 34 10 26 11 41 33.4 5 89 79 34 4 35 34 16 16 34 1 17 34 19 34 -0.17 9 0 0 34 12 0 11 41 34.0 6 90 78 34 6 10 34 17 51 34 2 52 34 21 9 -0.17 10 0 0 34 13 14 11 41 34.6 7 90 78 34 7 23 34 19 4 34 4 6 34 22 22 -0.17 11 0 0 34 14 6 11 41 35.3 8 91 78 34 8 15 34 19 56 34 4 57 34 23 14 -0.17 12 0 0 34 14 36 11 41 36.1 9 91 77 34 8 46 34 20 26 34 5 28 34 23 44 -0.17 13 0 0 34 14 45 11 41 36.9 10 92 77 34 8 54 34 20 35 34 5 37 34 23 53 -0.17 14 0 0 34 14 32 11 41 37.9 10 92 76 34 8 41 34 20 22 34 5 24 34 23 40 -0.17 15 0 0 34 13 57 11 41 38.9 11 93 76 34 8 7 34 19 48 34 4 49 34 23 6 -0.17 16 0 0 34 13 1 11 41 40.0 12 93 75 34 7 11 34 18 52 34 3 53 34 22 10 -0.17 17 0 0 34 11 43 11 41 41.1 13 94 75 34 5 53 34 17 34 34 2 35 34 20 52 -0.17 18 0 0 34 10 4 11 41 42.4 14 95 74 34 4 14 34 15 55 34 0 56 34 19 13 -0.17 19 0 0 34 8 3 11 41 43.7 15 95 73 34 2 12 34 13 54 33 58 54 34 17 12 -0.17 20 0 0 34 5 40 11 41 45.1 15 96 73 33 59 49 34 11 31 33 56 31 34 14 49 -0.17 21 0 0 34 2 56 11 41 46.6 16 96 72 33 57 5 34 8 46 33 53 47 34 12 5 -0.17 22 0 0 33 59 49 11 41 48.1 17 97 71 33 53 58 34 5 40 33 50 40 34 8 59 -0.17 23 0 0 33 56 21 11 41 49.8 18 97 71 33 50 30 34 2 12 33 47 12 34 5 31 -0.17 24 0 0 33 52 31 11 41 51.5 19 98 70 33 46 40 33 58 22 33 43 21 34 1 41 -0.17 25 0 0 33 48 19 11 41 53.2 20 99 69 33 42 27 33 54 11 33 39 9 33 57 29 -0.17 26 0 0 33 43 45 11 41 55.1 20 99 68 33 37 53 33 49 37 33 34 35 33 52 56 -0.17 27 0 0 33 38 49 11 41 57.1 21 100 68 33 32 57 33 44 41 33 29 39 33 48 0 -0.17 28 0 0 33 33 31 11 41 59.1 22 100 67 33 27 39 33 39 24 33 24 20 33 42 43 -0.17 29 0 0 33 27 52 11 42 1.2 23 101 66 33 21 59 33 33 44 33 18 40 33 37 3 -0.17 30 0 0 33 21 50 11 42 3.4 24 102 65 33 15 57 33 27 42 33 12 37 33 31 2 -0.17 31 0 0 33 15 25 11 42 5.6 25 102 65 33 9 32 33 21 19 33 6 13 33 24 38 -0.17 32 0 0 33 8 39 11 42 8.0 25 103 64 33 2 46 33 14 33 32 59 26 33 17 53 -0.17 33 0 0 33 1 31 11 42 10.4 26 103 63 32 55 37 33 7 25 32 52 17 33 10 45 -0.17 34 0 0 32 54 0 11 42 12.9 27 104 62 32 48 6 32 59 55 32 44 46 33 3 15 -0.17 35 0 0 32 46 7 11 42 15.5 28 104 61 32 40 13 32 52 2 32 36 53 32 55 22 -0.17 36 0 0 32 37 52 11 42 18.1 29 105 61 32 31 57 32 43 47 32 28 37 32 47 8 -0.17 37 0 0 32 29 15 11 42 20.9 30 106 60 32 23 20 32 35 10 32 19 59 32 38 31 -0.17 38 0 0 32 20 15 11 42 23.7 31 106 59 32 14 19 32 26 11 32 10 58 32 29 32 -0.17 39 0 0 32 10 53 11 42 26.6 31 107 58 32 4 57 32 16 49 32 1 36 32 20 11 -0.17 40 0 0 32 1 8 11 42 29.6 32 107 57 31 55 12 32 7 5 31 51 50 32 10 27 -0.17 41 0 0 31 51 1 11 42 32.7 33 108 57 31 45 4 31 56 59 31 41 43 32 0 21 -0.17 42 0 0 31 40 32 11 42 35.9 34 109 56 31 34 34 31 46 30 31 31 12 31 49 52 -0.17 43 0 0 31 29 40 11 42 39.1 35 109 55 31 23 42 31 35 38 31 20 20 31 39 1 -0.17 44 0 0 31 18 26 11 42 42.4 36 110 54 31 12 27 31 24 25 31 9 5 31 27 47 -0.17 45 0 0 31 6 49 11 42 45.8 37 110 53 31 0 50 31 12 48 30 57 27 31 16 11 -0.17 46 0 0 30 54 50 11 42 49.3 38 111 52 30 48 50 31 0 50 30 45 27 31 4 13 -0.17 47 0 0 30 42 28 11 42 52.9 38 112 51 30 36 27 30 48 28 30 33 4 30 51 52 -0.17 48 0 0 30 29 43 11 42 56.6 39 112 51 30 23 43 30 35 44 30 20 19 30 39 8 -0.17 49 0 0 30 16 37 11 43 0.3 40 113 50 30 10 35 30 22 38 30 7 11 30 26 2 -0.17 50 0 0 30 3 7 11 43 4.2 41 114 49 29 57 5 30 9 9 29 53 41 30 12 34 -0.17 51 0 0 29 49 15 11 43 8.1 42 114 48 29 43 13 29 55 18 29 39 48 29 58 43 -0.17 52 0 0 29 35 1 11 43 12.1 43 115 47 29 28 58 29 41 5 29 25 33 29 44 30 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-22 3 36 14 3 49 2 3 32 38 3 52 38 -0.19 119 0 0 3 16 20 11 50 3.8 63 272 -23 3 9 57 3 22 44 3 6 21 3 26 20 -0.19 120 0 0 2 50 13 11 50 10.2 62 273 -24 2 43 50 2 56 36 2 40 14 3 0 13 -0.19 121 0 0 2 24 18 11 50 16.6 61 274 -25 2 17 55 2 30 40 2 14 19 2 34 16 -0.19 122 0 0 1 58 34 11 50 22.8 60 274 -26 1 52 12 2 4 56 1 48 37 2 8 32 -0.19 123 0 0 1 33 3 11 50 29.0 59 275 -27 1 26 42 1 39 25 1 23 6 1 43 0 -0.19 124 0 0 1 7 45 11 50 35.1 58 275 -28 1 1 25 1 14 6 0 57 49 1 17 42 -0.19 125 0 0 0 42 42 11 50 41.2 57 276 -29 0 36 21 0 49 2 0 32 47 0 52 37 -0.19 126 0 0 0 17 52 11 50 47.1 56 276 -30 0 11 33 0 24 12 0 7 58 0 27 47 -0.19 127 0 0 - 0 6 42 11 50 53.0 55 277 -32 - 0 13 1 - 0 0 23 - 0 16 35 0 3 12 -0.19 128 0 0 - 0 31 1 11 50 58.7 54 277 -33 - 0 37 19 - 0 24 42 - 0 40 53 - 0 21 8 -0.19 129 0 0 - 0 55 3 11 51 4.4 52 278 -34 - 1 1 21 - 0 48 45 - 1 4 55 - 0 45 11 -0.19 130 0 0 - 1 18 49 11 51 10.0 51 278 -35 - 1 25 6 - 1 12 31 - 1 28 40 - 1 8 58 -0.19 131 0 0 - 1 42 18 11 51 15.5 50 278 -36 - 1 48 34 - 1 36 1 - 1 52 7 - 1 32 28 -0.19 132 0 0 - 2 5 29 11 51 20.9 49 278 -37 - 2 11 45 - 1 59 12 - 2 15 17 - 1 55 40 -0.19 133 0 0 - 2 28 21 11 51 26.2 48 279 -38 - 2 34 37 - 2 22 6 - 2 38 9 - 2 18 33 -0.19 134 0 0 - 2 50 56 11 51 31.4 47 279 -39 - 2 57 11 - 2 44 40 - 3 0 42 - 2 41 8 -0.19 135 0 0 - 3 13 11 11 51 36.5 46 279 -40 - 3 19 25 - 3 6 56 - 3 22 57 - 3 3 25 -0.19 136 0 0 - 3 35 7 11 51 41.6 45 279 -41 - 3 41 20 - 3 28 53 - 3 44 51 - 3 25 21 -0.19 137 0 0 - 3 56 42 11 51 46.5 44 279 -42 - 4 2 56 - 3 50 29 - 4 6 26 - 3 46 58 -0.19 138 0 0 - 4 17 58 11 51 51.2 43 279 -43 - 4 24 11 - 4 11 46 - 4 27 41 - 4 8 15 -0.19 139 0 0 - 4 38 53 11 51 55.9 42 279 -44 - 4 45 5 - 4 32 41 - 4 48 35 - 4 29 11 -0.19 140 0 0 - 4 59 27 11 52 0.5 41 279 -46 - 5 5 39 - 4 53 16 - 5 9 8 - 4 49 46 -0.19 141 0 0 - 5 19 40 11 52 5.0 40 279 -47 - 5 25 51 - 5 13 30 - 5 29 20 - 5 10 0 -0.19 142 0 0 - 5 39 32 11 52 9.3 39 280 -48 - 5 45 41 - 5 33 22 - 5 49 10 - 5 29 53 -0.19 143 0 0 - 5 59 1 11 52 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23 2 11 52 55.8 25 279 -61 - 9 29 4 - 9 17 0 - 9 32 28 - 9 13 35 -0.19 156 0 0 - 9 37 27 11 52 58.5 24 279 -62 - 9 43 28 - 9 31 25 - 9 46 52 - 9 28 1 -0.19 157 0 0 - 9 51 27 11 53 1.2 23 279 -63 - 9 57 28 - 9 45 26 -10 0 52 - 9 42 3 -0.19 158 0 0 -10 5 3 11 53 3.7 22 278 -64 -10 11 3 - 9 59 3 -10 14 27 - 9 55 39 -0.19 159 0 0 -10 18 14 11 53 6.2 21 278 -65 -10 24 14 -10 12 14 -10 27 37 -10 8 51 -0.19 160 0 0 -10 31 0 11 53 8.5 20 278 -66 -10 37 0 -10 25 1 -10 40 22 -10 21 38 -0.19 161 0 0 -10 43 22 11 53 10.7 19 278 -67 -10 49 20 -10 37 23 -10 52 43 -10 34 1 -0.19 162 0 0 -10 55 18 11 53 12.7 18 278 -67 -11 1 16 -10 49 20 -11 4 39 -10 45 58 -0.19 163 0 0 -11 6 50 11 53 14.7 17 278 -68 -11 12 47 -11 0 52 -11 16 9 -10 57 30 -0.19 164 0 0 -11 17 56 11 53 16.6 16 277 -69 -11 23 53 -11 11 59 -11 27 15 -11 8 37 -0.20 165 0 0 -11 28 37 11 53 18.3 15 277 -70 -11 34 34 -11 22 41 -11 37 56 -11 19 19 -0.20 166 0 0 -11 38 54 11 53 19.9 14 277 -71 -11 44 50 -11 32 57 -11 48 11 -11 29 36 -0.20 167 0 0 -11 48 45 11 53 21.4 13 277 -72 -11 54 40 -11 42 49 -11 58 1 -11 39 28 -0.20 168 0 0 -11 58 10 11 53 22.8 12 277 -73 -12 4 6 -11 52 15 -12 7 27 -11 48 54 -0.20 169 0 0 -12 7 11 11 53 24.1 11 276 -73 -12 13 6 -12 1 16 -12 16 26 -11 57 55 -0.20 170 0 0 -12 15 46 11 53 25.3 10 276 -74 -12 21 41 -12 9 51 -12 25 1 -12 6 31 -0.20 171 0 0 -12 23 56 11 53 26.3 9 276 -75 -12 29 50 -12 18 2 -12 33 11 -12 14 41 -0.20 172 0 0 -12 31 41 11 53 27.3 8 276 -76 -12 37 35 -12 25 47 -12 40 55 -12 22 27 -0.20 173 0 0 -12 39 0 11 53 28.1 7 276 -76 -12 44 54 -12 33 6 -12 48 14 -12 29 47 -0.20 174 0 0 -12 45 54 11 53 28.9 6 275 -77 -12 51 48 -12 40 1 -12 55 7 -12 36 41 -0.21 175 0 0 -12 52 23 11 53 29.5 5 275 -78 -12 58 16 -12 46 30 -13 1 35 -12 43 10 -0.21 176 0 0 -12 58 27 11 53 30.0 4 275 -78 -13 4 19 -12 52 34 -13 7 39 -12 49 14 -0.21 177 0 0 -13 4 5 11 53 30.4 3 275 -79 -13 9 57 -12 58 12 -13 13 16 -12 54 53 -0.22 178 0 0 -13 9 18 11 53 30.7 2 274 -79 -13 15 10 -13 3 25 -13 18 29 -13 0 6 -0.24 179 0 0 -13 14 5 11 53 30.9 1 274 -80 -13 19 57 -13 8 13 -13 23 16 -13 4 54 -0.28 180 0 0 -13 18 28 11 53 30.9 0 274 -80 -13 24 20 -13 12 36 -13 27 38 -13 9 17 -0.79 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 14.4 Data for the target star ------------------------ * name: TYC 267-00513-1 * constellation : Leo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 11 25 49.4889 DE: +04 00 10.851 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 11 25 49.4887 DE: +04 00 10.852 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.2 * B mag [mag]: 9.7 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2439) Ulugbek asteroid class: approx. diameter [km]: 21 approx. diameter ["]: 0.010 distance from Earth [AU]: 3.00220 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#47 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): 0.017", 0.003", 113.6° remarks: * orbital elements for (2439)Ulugbek : Mean anomaly = 80.8772523427 deg Arg. of pericenter = 336.0896721767 deg Long. of node = 115.4564285092 deg Inclination = 0.2921336232 deg Eccentricity = 0.1484346633 Semimajor axis = 3.1398901133 AU Perihelion dist = 2.6738215816 AU Mag: H = 11.91, G = 0.15 Epoch of elements : MJD 60474.49133829 TDT (2024 Jun 13.4913) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#472023Apr24,1.22,2024,6,13,11.792104,0.071824,0.162714,9.028741,-3.928166,0.005186,-0.002221,0.000000,0.000000 92.6062,3.8692,3.17,23.25,False TYC 267-00513-1,11.43041360,4.0030140,9.67,9.16,8.88,0.1,0,,11.45132671,3.8691927,8.58,8.41,0,0,0 2439,Ulugbek,17.74,21.232,3.0022,0,0,1.767,-11.51,,1.4,0 0,80.7902,2024,6,13,336.0897,115.4564,0.2921,0.14843,3.13989,2.67382,11.91,5.0,0.15 1.282,0.0170,0.0028,114,0.0028,Known errors,1.02,0,-1,-1 20240613_0513-1,60139.38 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 09:11 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org