IOTA/IOTA-ES occultation update for (11301) 1992 XM / TYC 820-00500-1 event on 2024 Oct 15, 01:21 UT Visible from Summary ------- On 2024 Oct 15 UT, the 11.899 km diameter asteroid (11301) 1992 XM will occult a 10.3 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 8.22 mag to 18.55 mag (the magnitude of the asteroid) for at most 0.400 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: 95 * date and approx. time of event: 2024 Oct 15, 01:17 - 2024 Oct 15, 01:24 * geocentric midpoint of event [JD]: 2460598.55651391 * magnitude of target star: 10.33 * magnitude drop [mag]: 8.22 * estimated maximum duration [s]: 0.400 * Moon: 91 % sunlit, 153° distance * Sun: 61° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 12 * 1 sigma uncertainty interval [path widths]: +/- 0.44 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.002", 115°) * approx speed of asteroid's shadow [km/s]: 30.0187 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 820-00500-1 by 11301 1992 XM on 2024 Oct 15 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 5 0 0 19 38 5 1 17 51.8 0 81 -61 19 34 48 19 41 22 19 31 55 19 44 14 .... 6 0 0 19 46 45 1 17 51.9 1 81 -60 19 43 28 19 50 1 19 40 36 19 52 54 0.01 7 0 0 19 54 57 1 17 51.9 2 82 -59 19 51 41 19 58 14 19 48 48 20 1 6 0.06 8 0 0 20 2 42 1 17 52.1 3 82 -58 19 59 26 20 5 59 19 56 34 20 8 51 0.08 9 0 0 20 10 1 1 17 52.3 4 82 -57 20 6 44 20 13 17 20 3 53 20 16 8 0.08 10 0 0 20 16 51 1 17 52.6 5 83 -56 20 13 36 20 20 7 20 10 44 20 22 59 0.09 11 0 0 20 23 15 1 17 52.9 6 83 -55 20 19 59 20 26 31 20 17 8 20 29 22 0.09 12 0 0 20 29 12 1 17 53.3 7 83 -54 20 25 56 20 32 27 20 23 5 20 35 18 0.10 13 0 0 20 34 41 1 17 53.7 8 84 -53 20 31 25 20 37 56 20 28 34 20 40 47 0.10 14 0 0 20 39 43 1 17 54.2 9 84 -52 20 36 27 20 42 58 20 33 36 20 45 49 0.10 15 0 0 20 44 17 1 17 54.8 10 85 -51 20 41 2 20 47 32 20 38 11 20 50 23 0.10 16 0 0 20 48 25 1 17 55.4 11 85 -50 20 45 10 20 51 40 20 42 19 20 54 31 0.10 17 0 0 20 52 5 1 17 56.1 11 85 -50 20 48 50 20 55 20 20 45 59 20 58 10 0.10 18 0 0 20 55 18 1 17 56.8 12 86 -49 20 52 3 20 58 32 20 49 12 21 1 23 0.10 19 0 0 20 58 3 1 17 57.6 13 86 -48 20 54 48 21 1 18 20 51 58 21 4 8 0.10 20 0 0 21 0 21 1 17 58.4 14 86 -47 20 57 6 21 3 36 20 54 16 21 6 26 0.11 21 0 0 21 2 12 1 17 59.3 15 87 -46 20 58 57 21 5 27 20 56 7 21 8 17 0.11 22 0 0 21 3 35 1 18 0.3 16 87 -45 21 0 21 21 6 50 20 57 30 21 9 40 0.11 23 0 0 21 4 32 1 18 1.3 17 87 -44 21 1 17 21 7 46 20 58 26 21 10 37 0.11 24 0 0 21 5 0 1 18 2.3 18 88 -43 21 1 46 21 8 15 20 58 55 21 11 5 0.11 25 0 0 21 5 2 1 18 3.4 19 88 -42 21 1 47 21 8 16 20 58 56 21 11 7 0.11 26 0 0 21 4 35 1 18 4.6 20 88 -41 21 1 21 21 7 50 20 58 30 21 10 40 0.11 27 0 0 21 3 42 1 18 5.8 21 89 -40 21 0 27 21 6 56 20 57 37 21 9 47 0.11 28 0 0 21 2 21 1 18 7.1 22 89 -39 20 59 6 21 5 36 20 56 16 21 8 26 0.11 29 0 0 21 0 32 1 18 8.4 23 89 -38 20 57 18 21 3 47 20 54 27 21 6 38 0.11 30 0 0 20 58 16 1 18 9.8 24 90 -37 20 55 2 21 1 31 20 52 11 21 4 22 0.11 31 0 0 20 55 33 1 18 11.2 25 90 -37 20 52 18 20 58 48 20 49 27 21 1 38 0.11 32 0 0 20 52 22 1 18 12.7 26 90 -36 20 49 7 20 55 37 20 46 16 20 58 27 0.11 33 0 0 20 48 43 1 18 14.3 26 91 -35 20 45 28 20 51 58 20 42 37 20 54 49 0.11 34 0 0 20 44 37 1 18 15.8 27 91 -34 20 41 22 20 47 52 20 38 31 20 50 43 0.11 35 0 0 20 40 3 1 18 17.5 28 91 -33 20 36 48 20 43 18 20 33 56 20 46 9 0.11 36 0 0 20 35 1 1 18 19.2 29 92 -32 20 31 46 20 38 17 20 28 55 20 41 8 0.11 37 0 0 20 29 32 1 18 21.0 30 92 -31 20 26 16 20 32 48 20 23 25 20 35 39 0.11 38 0 0 20 23 35 1 18 22.8 31 92 -30 20 20 19 20 26 51 20 17 28 20 29 42 0.11 39 0 0 20 17 10 1 18 24.6 32 93 -29 20 13 54 20 20 26 20 11 3 20 23 18 0.11 40 0 0 20 10 18 1 18 26.5 33 93 -28 20 7 2 20 13 34 20 4 10 20 16 26 0.11 41 0 0 20 2 57 1 18 28.5 34 93 -27 19 59 41 20 6 14 19 56 49 20 9 6 0.11 42 0 0 19 55 9 1 18 30.5 35 94 -26 19 51 53 19 58 26 19 49 1 20 1 18 0.11 43 0 0 19 46 53 1 18 32.6 36 94 -25 19 43 37 19 50 10 19 40 44 19 53 3 0.11 44 0 0 19 38 10 1 18 34.7 37 94 -24 19 34 52 19 41 27 19 32 0 19 44 19 0.11 45 0 0 19 28 58 1 18 36.9 38 94 -23 19 25 40 19 32 15 19 22 48 19 35 8 0.11 46 0 0 19 19 18 1 18 39.2 39 95 -22 19 16 0 19 22 36 19 13 7 19 25 29 0.11 47 0 0 19 9 10 1 18 41.4 40 95 -21 19 5 53 19 12 28 19 2 59 19 15 22 0.11 48 0 0 18 58 35 1 18 43.8 41 95 -20 18 55 17 19 1 53 18 52 23 19 4 47 0.11 49 0 0 18 47 31 1 18 46.2 42 95 -19 18 44 13 18 50 50 18 41 19 18 53 44 0.11 50 0 0 18 36 0 1 18 48.6 43 96 -19 18 32 41 18 39 19 18 29 47 18 42 13 0.11 51 0 0 18 24 1 1 18 51.1 44 96 -18 18 20 42 18 27 20 18 17 47 18 30 14 0.11 52 0 0 18 11 33 1 18 53.7 45 96 -17 18 8 14 18 14 53 18 5 19 18 17 47 0.11 53 0 0 17 58 38 1 18 56.3 46 96 -16 17 55 18 18 1 58 17 52 23 18 4 53 0.11 54 0 0 17 45 15 1 18 58.9 47 96 -15 17 41 55 17 48 35 17 38 59 17 51 30 0.11 55 0 0 17 31 24 1 19 1.6 48 97 -14 17 28 3 17 34 44 17 25 7 17 37 40 0.11 56 0 0 17 17 4 1 19 4.4 49 97 -13 17 13 44 17 20 25 17 10 48 17 23 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9 1 0 48 0.11 99 0 0 0 23 28 1 21 42.9 82 346 32 0 19 49 0 27 6 0 16 38 0 30 17 0.11 100 0 0 - 0 7 14 1 21 47.0 81 340 34 - 0 10 53 - 0 3 35 - 0 14 4 - 0 0 24 0.11 101 0 0 - 0 38 5 1 21 51.2 80 336 35 - 0 41 44 - 0 34 26 - 0 44 56 - 0 31 15 0.11 102 0 0 - 1 9 6 1 21 55.4 79 332 36 - 1 12 45 - 1 5 26 - 1 15 57 - 1 2 15 0.11 103 0 0 - 1 40 14 1 21 59.6 78 329 37 - 1 43 53 - 1 36 35 - 1 47 6 - 1 33 23 0.11 104 0 0 - 2 11 30 1 22 3.7 77 326 38 - 2 15 9 - 2 7 50 - 2 18 22 - 2 4 38 0.11 105 0 0 - 2 42 52 1 22 7.9 76 324 39 - 2 46 31 - 2 39 12 - 2 49 44 - 2 36 0 0.11 106 0 0 - 3 14 19 1 22 12.0 75 322 40 - 3 17 59 - 3 10 39 - 3 21 11 - 3 7 27 0.11 107 0 0 - 3 45 51 1 22 16.1 74 320 41 - 3 49 31 - 3 42 11 - 3 52 43 - 3 38 58 0.11 108 0 0 - 4 17 26 1 22 20.2 73 319 42 - 4 21 6 - 4 13 46 - 4 24 19 - 4 10 33 0.11 109 0 0 - 4 49 4 1 22 24.3 72 317 43 - 4 52 44 - 4 45 24 - 4 55 57 - 4 42 11 0.11 110 0 0 - 5 20 44 1 22 28.3 71 316 44 - 5 24 24 - 5 17 3 - 5 27 37 - 5 13 51 0.11 111 0 0 - 5 52 24 1 22 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4 4 -12 14 35 -12 0 52 0.11 124 0 0 -12 38 9 1 23 20.8 56 306 59 -12 41 48 -12 34 30 -12 45 0 -12 31 18 0.11 125 0 0 -13 8 23 1 23 24.2 54 306 60 -13 12 2 -13 4 45 -13 15 14 -13 1 33 0.11 126 0 0 -13 38 25 1 23 27.5 53 305 61 -13 42 3 -13 34 46 -13 45 15 -13 31 35 0.11 127 0 0 -14 8 13 1 23 30.8 52 305 61 -14 11 51 -14 4 35 -14 15 3 -14 1 24 0.10 128 0 0 -14 37 47 1 23 34.0 51 304 62 -14 41 25 -14 34 9 -14 44 36 -14 30 58 0.10 129 0 0 -15 7 7 1 23 37.1 50 304 63 -15 10 44 -15 3 29 -15 13 55 -15 0 18 0.10 130 0 0 -15 36 11 1 23 40.2 49 303 64 -15 39 48 -15 32 33 -15 42 59 -15 29 23 0.10 131 0 0 -16 4 59 1 23 43.3 48 303 65 -16 8 36 -16 1 21 -16 11 46 -15 58 11 0.10 132 0 0 -16 33 30 1 23 46.2 47 303 66 -16 37 6 -16 29 53 -16 40 16 -16 26 43 0.10 133 0 0 -17 1 43 1 23 49.1 46 302 67 -17 5 20 -16 58 7 -17 8 30 -16 54 57 0.10 134 0 0 -17 29 39 1 23 52.0 45 302 67 -17 33 15 -17 26 3 -17 36 25 -17 22 54 0.10 135 0 0 -17 57 16 1 23 54.7 44 301 68 -18 0 52 -17 53 41 -18 4 1 -17 50 32 0.10 136 0 0 -18 24 35 1 23 57.4 43 301 69 -18 28 10 -18 20 59 -18 31 19 -18 17 51 0.10 137 0 0 -18 51 33 1 24 0.1 42 301 69 -18 55 8 -18 47 58 -18 58 17 -18 44 50 0.10 138 0 0 -19 18 12 1 24 2.7 41 300 70 -19 21 46 -19 14 37 -19 24 54 -19 11 29 0.10 139 0 0 -19 44 30 1 24 5.2 39 300 71 -19 48 4 -19 40 56 -19 51 12 -19 37 48 0.10 140 0 0 -20 10 27 1 24 7.6 38 299 71 -20 14 0 -20 6 53 -20 17 8 -20 3 46 0.10 141 0 0 -20 36 2 1 24 10.0 37 299 72 -20 39 36 -20 32 29 -20 42 43 -20 29 22 0.10 142 0 0 -21 1 16 1 24 12.3 36 298 72 -21 4 49 -20 57 43 -21 7 55 -20 54 37 0.10 143 0 0 -21 26 8 1 24 14.6 35 298 73 -21 29 40 -21 22 35 -21 32 46 -21 19 29 0.10 144 0 0 -21 50 37 1 24 16.7 34 298 73 -21 54 9 -21 47 5 -21 57 14 -21 43 59 0.10 145 0 0 -22 14 43 1 24 18.8 33 297 73 -22 18 14 -22 11 11 -22 21 20 -22 8 6 0.10 146 0 0 -22 38 26 1 24 20.9 32 297 73 -22 41 57 -22 34 55 -22 45 2 -22 31 50 0.10 147 0 0 -23 1 45 1 24 22.9 31 296 74 -23 5 16 -22 58 15 -23 8 21 -22 55 10 0.10 148 0 0 -23 24 41 1 24 24.8 30 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24 30 -27 34 19 -27 21 31 0.10 161 0 0 -27 45 27 1 24 43.8 18 290 70 -27 48 52 -27 42 3 -27 51 51 -27 39 4 0.10 162 0 0 -28 2 35 1 24 44.8 17 289 70 -28 5 59 -27 59 11 -28 8 57 -27 56 12 0.10 163 0 0 -28 19 16 1 24 45.8 16 289 69 -28 22 40 -28 15 53 -28 25 38 -28 12 54 0.10 164 0 0 -28 35 32 1 24 46.7 15 288 68 -28 38 55 -28 32 9 -28 41 53 -28 29 11 0.10 165 0 0 -28 51 23 1 24 47.6 14 288 68 -28 54 45 -28 48 0 -28 57 43 -28 45 2 0.10 166 0 0 -29 6 47 1 24 48.4 13 288 67 -29 10 10 -29 3 25 -29 13 7 -29 0 28 0.10 167 0 0 -29 21 47 1 24 49.1 12 287 67 -29 25 9 -29 18 25 -29 28 6 -29 15 28 0.10 168 0 0 -29 36 21 1 24 49.8 11 287 66 -29 39 42 -29 32 59 -29 42 39 -29 30 3 0.10 169 0 0 -29 50 29 1 24 50.4 10 286 65 -29 53 50 -29 47 8 -29 56 46 -29 44 12 0.10 170 0 0 -30 4 12 1 24 51.0 10 286 65 -30 7 32 -30 0 51 -30 10 28 -29 57 55 0.10 171 0 0 -30 17 29 1 24 51.5 9 285 64 -30 20 49 -30 14 9 -30 23 45 -30 11 13 0.10 172 0 0 -30 30 21 1 24 52.0 8 285 63 -30 33 41 -30 27 1 -30 36 36 -30 24 6 0.10 173 0 0 -30 42 47 1 24 52.4 7 284 62 -30 46 7 -30 39 28 -30 49 2 -30 36 33 0.10 174 0 0 -30 54 49 1 24 52.8 6 283 62 -30 58 8 -30 51 29 -31 1 3 -30 48 35 0.10 175 0 0 -31 6 25 1 24 53.1 5 283 61 -31 9 44 -31 3 6 -31 12 38 -31 0 11 0.10 176 0 0 -31 17 35 1 24 53.4 4 282 60 -31 20 54 -31 14 17 -31 23 48 -31 11 23 0.10 177 0 0 -31 28 21 1 24 53.6 3 282 60 -31 31 39 -31 25 2 -31 34 33 -31 22 9 0.10 178 0 0 -31 38 41 1 24 53.7 2 281 59 -31 41 59 -31 35 23 -31 44 53 -31 32 30 0.10 179 0 0 -31 48 36 1 24 53.8 2 281 58 -31 51 54 -31 45 19 -31 54 48 -31 42 25 0.10 180 0 0 -31 58 7 1 24 53.9 1 280 57 -32 1 24 -31 54 49 -32 4 17 -31 51 56 0.09 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 820-00500-1 * constellation : Leo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 09 24 23.9044 DE: +08 31 32.276 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 09 24 23.9046 DE: +08 31 32.275 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.3 * B mag [mag]: 10.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (11301) 1992 XM asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.005 distance from Earth [AU]: 3.33990 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#47 date of fit: 2023 Feb 10 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", 114.611° remarks: * orbital elements for (11301)1992 XM : Mean anomaly = 82.4979233350 deg Arg. of pericenter = 136.1848670841 deg Long. of node = 251.7694735614 deg Inclination = 9.0216658714 deg Eccentricity = 0.1180640885 Semimajor axis = 2.9961029314 AU Perihelion dist = 2.6423707696 AU Mag: H = 12.65, G = 0.15 Epoch of elements : MJD 60598.05651404 TDT (2024 Oct 15.0565) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#472023Feb10,0.40,2024,10,15,1.356334,-0.048596,-0.098255,15.226907,-7.430970,-0.004931,0.001300,-0.000001,0.000000 97.0082,8.4213,156.10,-8.64,False TYC 820-00500-1,9.40664007,8.5256322,10.59,10.33,10.19,0.0,0,,9.42848437,8.4212507,8.22,7.91,0,0,0 11301,1992 XM,18.55,11.899,3.3399,0,0,2.702,-19.57,,1.2,0 0,82.2971,2024,10,14,136.1849,251.7695,9.0217,0.11806,2.99610,2.64237,12.65,5.0,0.15 1.438,0.0153,0.0021,115,0.0022,Known errors,1.08,0,-1,-1 20241015_0500-1,60140.64 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:15 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org