IOTA/IOTA-ES occultation update for (33812) 1999 XS173 / TYC 1416-01151-1 event on 2024 Oct 16, 02:02 UT Visible from Summary ------- On 2024 Oct 16 UT, the 12.065 km diameter asteroid (33812) 1999 XS173 will occult a 11.4 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 8.02 mag to 19.38 mag (the magnitude of the asteroid) for at most 0.450 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: 90 * date and approx. time of event: 2024 Oct 16, 01:59 - 2024 Oct 16, 02:06 * geocentric midpoint of event [JD]: 2460599.58541100 * magnitude of target star: 11.36 * magnitude drop [mag]: 8.02 * estimated maximum duration [s]: 0.450 * Moon: 97 % sunlit, 137° distance * Sun: 63° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 13 * 1 sigma uncertainty interval [path widths]: +/- 0.52 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.008, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.009", 0.002", 104°) * approx speed of asteroid's shadow [km/s]: 26.8091 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1416-01151-1 by 33812 1999 XS173 on 2024 Oct 16 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 4 0 0 -10 40 36 1 59 14.3 0 69 -48 -10 44 18 -10 36 54 -10 48 9 -10 33 4 .... 5 0 0 -10 17 27 1 59 14.4 1 68 -47 -10 21 9 -10 13 44 -10 24 59 -10 9 55 0.08 6 0 0 - 9 54 28 1 59 14.5 2 68 -46 - 9 58 10 - 9 50 46 -10 2 0 - 9 46 57 0.20 7 0 0 - 9 31 41 1 59 14.8 3 68 -46 - 9 35 22 - 9 27 59 - 9 39 12 - 9 24 10 0.24 8 0 0 - 9 9 5 1 59 15.1 4 68 -45 - 9 12 47 - 9 5 24 - 9 16 36 - 9 1 35 0.26 9 0 0 - 8 46 42 1 59 15.5 5 68 -44 - 8 50 23 - 8 43 1 - 8 54 12 - 8 39 13 0.28 10 0 0 - 8 24 32 1 59 15.9 7 68 -43 - 8 28 13 - 8 20 52 - 8 32 2 - 8 17 3 0.29 11 0 0 - 8 2 36 1 59 16.5 8 67 -43 - 8 6 16 - 7 58 56 - 8 10 5 - 7 55 7 0.29 12 0 0 - 7 40 53 1 59 17.2 9 67 -42 - 7 44 34 - 7 37 13 - 7 48 22 - 7 33 26 0.30 13 0 0 - 7 19 25 1 59 17.9 10 67 -41 - 7 23 5 - 7 15 46 - 7 26 53 - 7 11 58 0.30 14 0 0 - 6 58 12 1 59 18.7 11 67 -40 - 7 1 52 - 6 54 33 - 7 5 39 - 6 50 46 0.31 15 0 0 - 6 37 15 1 59 19.6 12 67 -39 - 6 40 54 - 6 33 35 - 6 44 41 - 6 29 49 0.31 16 0 0 - 6 16 33 1 59 20.6 13 67 -38 - 6 20 12 - 6 12 54 - 6 23 59 - 6 9 8 0.31 17 0 0 - 5 56 7 1 59 21.7 14 67 -38 - 5 59 46 - 5 52 29 - 6 3 33 - 5 48 43 0.31 18 0 0 - 5 35 59 1 59 22.8 15 66 -37 - 5 39 37 - 5 32 21 - 5 43 23 - 5 28 35 0.31 19 0 0 - 5 16 7 1 59 24.1 16 66 -36 - 5 19 45 - 5 12 30 - 5 23 31 - 5 8 44 0.32 20 0 0 - 4 56 34 1 59 25.4 17 66 -35 - 5 0 11 - 4 52 56 - 5 3 57 - 4 49 11 0.32 21 0 0 - 4 37 18 1 59 26.8 18 66 -34 - 4 40 55 - 4 33 41 - 4 44 40 - 4 29 56 0.32 22 0 0 - 4 18 20 1 59 28.2 19 66 -33 - 4 21 57 - 4 14 44 - 4 25 42 - 4 10 59 0.32 23 0 0 - 3 59 42 1 59 29.8 20 66 -32 - 4 3 19 - 3 56 5 - 4 7 3 - 3 52 21 0.32 24 0 0 - 3 41 22 1 59 31.4 21 66 -31 - 3 44 59 - 3 37 46 - 3 48 43 - 3 34 2 0.32 25 0 0 - 3 23 22 1 59 33.1 22 66 -30 - 3 26 59 - 3 19 47 - 3 30 42 - 3 16 3 0.32 26 0 0 - 3 5 42 1 59 34.9 23 66 -29 - 3 9 18 - 3 2 7 - 3 13 2 - 2 58 24 0.32 27 0 0 - 2 48 22 1 59 36.7 24 65 -29 - 2 51 58 - 2 44 47 - 2 55 41 - 2 41 4 0.32 28 0 0 - 2 31 23 1 59 38.7 25 65 -28 - 2 34 58 - 2 27 48 - 2 38 41 - 2 24 5 0.33 29 0 0 - 2 14 44 1 59 40.7 26 65 -27 - 2 18 19 - 2 11 10 - 2 22 1 - 2 7 27 0.33 30 0 0 - 1 58 27 1 59 42.7 27 65 -26 - 2 2 1 - 1 54 52 - 2 5 43 - 1 51 10 0.33 31 0 0 - 1 42 31 1 59 44.9 28 65 -25 - 1 46 5 - 1 38 57 - 1 49 47 - 1 35 15 0.33 32 0 0 - 1 26 56 1 59 47.1 29 65 -24 - 1 30 30 - 1 23 22 - 1 34 11 - 1 19 41 0.33 33 0 0 - 1 11 44 1 59 49.4 30 65 -23 - 1 15 17 - 1 8 10 - 1 18 58 - 1 4 29 0.33 34 0 0 - 0 56 53 1 59 51.7 32 64 -22 - 1 0 26 - 0 53 20 - 1 4 7 - 0 49 39 0.33 35 0 0 - 0 42 25 1 59 54.1 33 64 -21 - 0 45 58 - 0 38 52 - 0 49 39 - 0 35 12 0.33 36 0 0 - 0 28 20 1 59 56.6 34 64 -20 - 0 31 52 - 0 24 47 - 0 35 33 - 0 21 7 0.33 37 0 0 - 0 14 37 1 59 59.1 35 64 -19 - 0 18 10 - 0 11 5 - 0 21 50 - 0 7 25 0.33 38 0 0 - 0 1 18 2 0 1.8 36 64 -18 - 0 4 50 0 2 14 - 0 8 30 0 5 53 0.33 39 0 0 0 11 38 2 0 4.4 37 64 -17 0 8 6 0 15 10 0 4 27 0 18 49 0.33 40 0 0 0 24 11 2 0 7.1 38 63 -16 0 20 39 0 27 42 0 17 0 0 31 21 0.33 41 0 0 0 36 20 2 0 9.9 39 63 -15 0 32 48 0 39 51 0 29 10 0 43 30 0.33 42 0 0 0 48 5 2 0 12.8 40 63 -14 0 44 34 0 51 36 0 40 55 0 55 14 0.33 43 0 0 0 59 26 2 0 15.7 41 63 -13 0 55 55 1 2 57 0 52 17 1 6 35 0.33 44 0 0 1 10 23 2 0 18.6 41 63 -12 1 6 52 1 13 54 1 3 14 1 17 31 0.33 45 0 0 1 20 56 2 0 21.7 42 62 -11 1 17 25 1 24 26 1 13 48 1 28 4 0.33 46 0 0 1 31 4 2 0 24.7 43 62 -10 1 27 34 1 34 34 1 23 56 1 38 11 0.33 47 0 0 1 40 48 2 0 27.8 44 62 -9 1 37 18 1 44 17 1 33 40 1 47 55 0.33 48 0 0 1 50 7 2 0 31.0 45 61 -8 1 46 37 1 53 36 1 43 0 1 57 13 0.33 49 0 0 1 59 1 2 0 34.2 46 61 -7 1 55 31 2 2 30 1 51 54 2 6 7 0.33 50 0 0 2 7 30 2 0 37.5 47 61 -6 2 4 1 2 10 59 2 0 24 2 14 36 0.33 51 0 0 2 15 34 2 0 40.8 48 60 -6 2 12 5 2 19 3 2 8 29 2 22 40 0.33 52 0 0 2 23 13 2 0 44.2 49 60 -5 2 19 45 2 26 42 2 16 8 2 30 18 0.34 53 0 0 2 30 27 2 0 47.6 50 59 -4 2 26 59 2 33 56 2 23 22 2 37 32 0.34 54 0 0 2 37 16 2 0 51.1 51 59 -3 2 33 47 2 40 44 2 30 11 2 44 20 0.34 55 0 0 2 43 39 2 0 54.5 52 59 -2 2 40 11 2 47 7 2 36 35 2 50 43 0.34 56 0 0 2 49 37 2 0 58.1 53 58 -1 2 46 8 2 53 5 2 42 33 2 56 40 0.34 57 0 0 2 55 9 2 1 1.7 54 57 0 2 51 41 2 58 37 2 48 5 3 2 12 0.34 58 0 0 3 0 15 2 1 5.3 55 57 1 2 56 47 3 3 43 2 53 12 3 7 18 0.34 59 0 0 3 4 56 2 1 8.9 56 56 2 3 1 28 3 8 24 2 57 53 3 11 59 0.34 60 0 0 3 9 11 2 1 12.6 56 55 3 3 5 43 3 12 39 3 2 8 3 16 14 0.34 61 0 0 3 13 0 2 1 16.4 57 55 4 3 9 33 3 16 28 3 5 57 3 20 3 0.34 62 0 0 3 16 24 2 1 20.1 58 54 5 3 12 56 3 19 51 3 9 21 3 23 26 0.34 63 0 0 3 19 21 2 1 23.9 59 53 6 3 15 54 3 22 49 3 12 19 3 26 24 0.34 64 0 0 3 21 53 2 1 27.8 60 52 7 3 18 25 3 25 21 3 14 51 3 28 55 0.34 65 0 0 3 23 59 2 1 31.6 61 51 8 3 20 31 3 27 26 3 16 56 3 31 1 0.34 66 0 0 3 25 39 2 1 35.5 61 50 9 3 22 11 3 29 6 3 18 36 3 32 41 0.34 67 0 0 3 26 52 2 1 39.5 62 49 10 3 23 25 3 30 20 3 19 50 3 33 54 0.34 68 0 0 3 27 40 2 1 43.4 63 48 11 3 24 13 3 31 7 3 20 38 3 34 42 0.34 69 0 0 3 28 2 2 1 47.4 64 46 12 3 24 34 3 31 29 3 21 0 3 35 4 0.34 70 0 0 3 27 57 2 1 51.4 64 45 13 3 24 30 3 31 25 3 20 55 3 34 59 0.34 71 0 0 3 27 27 2 1 55.4 65 43 14 3 24 0 3 30 54 3 20 25 3 34 29 0.34 72 0 0 3 26 31 2 1 59.5 66 42 15 3 23 3 3 29 58 3 19 28 3 33 33 0.34 73 0 0 3 25 8 2 2 3.5 67 40 16 3 21 41 3 28 36 3 18 6 3 32 10 0.34 74 0 0 3 23 20 2 2 7.6 67 38 17 3 19 52 3 26 47 3 16 17 3 30 22 0.34 75 0 0 3 21 5 2 2 11.8 68 36 18 3 17 38 3 24 33 3 14 3 3 28 8 0.34 76 0 0 3 18 25 2 2 15.9 68 34 19 3 14 57 3 21 52 3 11 22 3 25 27 0.34 77 0 0 3 15 18 2 2 20.0 69 32 20 3 11 50 3 18 46 3 8 15 3 22 21 0.34 78 0 0 3 11 46 2 2 24.2 69 30 21 3 8 18 3 15 13 3 4 43 3 18 48 0.34 79 0 0 3 7 47 2 2 28.4 70 27 22 3 4 19 3 11 15 3 0 44 3 14 50 0.34 80 0 0 3 3 23 2 2 32.6 70 25 23 2 59 55 3 6 51 2 56 19 3 10 26 0.34 81 0 0 2 58 33 2 2 36.8 70 22 24 2 55 4 3 2 1 2 51 29 3 5 36 0.34 82 0 0 2 53 17 2 2 41.0 71 20 25 2 49 48 2 56 45 2 46 12 3 0 20 0.34 83 0 0 2 47 35 2 2 45.2 71 17 26 2 44 6 2 51 3 2 40 30 2 54 39 0.34 84 0 0 2 41 27 2 2 49.5 71 14 27 2 37 58 2 44 56 2 34 22 2 48 31 0.34 85 0 0 2 34 54 2 2 53.7 71 11 28 2 31 25 2 38 22 2 27 49 2 41 58 0.34 86 0 0 2 27 55 2 2 58.0 71 8 29 2 24 26 2 31 24 2 20 50 2 35 0 0.34 87 0 0 2 20 30 2 3 2.2 71 5 30 2 17 1 2 23 59 2 13 25 2 27 36 0.34 88 0 0 2 12 41 2 3 6.5 71 2 32 2 9 11 2 16 10 2 5 35 2 19 46 0.34 89 0 0 2 4 25 2 3 10.7 71 359 33 2 0 56 2 7 55 1 57 19 2 11 31 0.34 90 0 0 1 55 45 2 3 15.0 71 356 34 1 52 15 1 59 14 1 48 38 2 2 51 0.34 91 0 0 1 46 39 2 3 19.2 71 353 35 1 43 9 1 50 9 1 39 32 1 53 46 0.34 92 0 0 1 37 8 2 3 23.5 70 351 36 1 33 38 1 40 38 1 30 0 1 44 15 0.34 93 0 0 1 27 12 2 3 27.7 70 348 37 1 23 42 1 30 42 1 20 4 1 34 20 0.34 94 0 0 1 16 51 2 3 32.0 70 345 38 1 13 21 1 20 22 1 9 43 1 24 0 0.34 95 0 0 1 6 6 2 3 36.2 69 343 39 1 2 35 1 9 36 0 58 56 1 13 14 0.34 96 0 0 0 54 55 2 3 40.5 69 341 40 0 51 24 0 58 26 0 47 46 1 2 5 0.34 97 0 0 0 43 21 2 3 44.7 68 338 41 0 39 49 0 46 52 0 36 11 0 50 31 0.34 98 0 0 0 31 22 2 3 48.9 68 336 42 0 27 50 0 34 53 0 24 11 0 38 32 0.34 99 0 0 0 18 59 2 3 53.1 67 334 43 0 15 27 0 22 30 0 11 47 0 26 10 0.34 100 0 0 0 6 11 2 3 57.3 66 332 44 0 2 39 0 9 44 - 0 1 0 0 13 23 0.34 101 0 0 - 0 7 0 2 4 1.4 66 331 45 - 0 10 32 - 0 3 27 - 0 14 12 0 0 13 0.34 102 0 0 - 0 20 34 2 4 5.6 65 329 46 - 0 24 7 - 0 17 2 - 0 27 47 - 0 13 22 0.34 103 0 0 - 0 34 32 2 4 9.7 64 327 47 - 0 38 5 - 0 30 59 - 0 41 46 - 0 27 19 0.34 104 0 0 - 0 48 54 2 4 13.8 63 326 48 - 0 52 27 - 0 45 20 - 0 56 8 - 0 41 40 0.34 105 0 0 - 1 3 38 2 4 17.9 63 325 49 - 1 7 12 - 1 0 4 - 1 10 53 - 0 56 23 0.34 106 0 0 - 1 18 45 2 4 22.0 62 323 50 - 1 22 19 - 1 15 11 - 1 26 1 - 1 11 30 0.34 107 0 0 - 1 34 15 2 4 26.0 61 322 51 - 1 37 49 - 1 30 41 - 1 41 31 - 1 26 59 0.34 108 0 0 - 1 50 7 2 4 30.0 60 321 52 - 1 53 41 - 1 46 32 - 1 57 23 - 1 42 50 0.34 109 0 0 - 2 6 21 2 4 34.0 59 320 53 - 2 9 56 - 2 2 46 - 2 13 38 - 1 59 4 0.34 110 0 0 - 2 22 56 2 4 37.9 58 319 54 - 2 26 32 - 2 19 21 - 2 30 14 - 2 15 39 0.34 111 0 0 - 2 39 54 2 4 41.9 58 318 55 - 2 43 29 - 2 36 18 - 2 47 12 - 2 32 35 0.34 112 0 0 - 2 57 12 2 4 45.7 57 317 56 - 3 0 48 - 2 53 36 - 3 4 31 - 2 49 53 0.34 113 0 0 - 3 14 51 2 4 49.6 56 316 58 - 3 18 27 - 3 11 15 - 3 22 11 - 3 7 31 0.34 114 0 0 - 3 32 51 2 4 53.4 55 315 59 - 3 36 27 - 3 29 14 - 3 40 12 - 3 25 30 0.34 115 0 0 - 3 51 11 2 4 57.2 54 315 60 - 3 54 48 - 3 47 34 - 3 58 32 - 3 43 50 0.34 116 0 0 - 4 9 50 2 5 0.9 53 314 61 - 4 13 28 - 4 6 13 - 4 17 13 - 4 2 29 0.34 117 0 0 - 4 28 50 2 5 4.6 52 313 62 - 4 32 27 - 4 25 12 - 4 36 13 - 4 21 27 0.34 118 0 0 - 4 48 8 2 5 8.2 51 312 63 - 4 51 46 - 4 44 30 - 4 55 32 - 4 40 45 0.34 119 0 0 - 5 7 45 2 5 11.8 50 312 64 - 5 11 23 - 5 4 7 - 5 15 9 - 5 0 21 0.34 120 0 0 - 5 27 40 2 5 15.4 49 311 65 - 5 31 19 - 5 24 2 - 5 35 5 - 5 20 16 0.34 121 0 0 - 5 47 53 2 5 18.9 48 311 66 - 5 51 32 - 5 44 15 - 5 55 19 - 5 40 28 0.34 122 0 0 - 6 8 24 2 5 22.3 47 310 67 - 6 12 3 - 6 4 45 - 6 15 50 - 6 0 58 0.34 123 0 0 - 6 29 12 2 5 25.7 46 310 68 - 6 32 51 - 6 25 32 - 6 36 39 - 6 21 45 0.34 124 0 0 - 6 50 16 2 5 29.0 45 309 69 - 6 53 56 - 6 46 36 - 6 57 43 - 6 42 49 0.34 125 0 0 - 7 11 36 2 5 32.3 44 309 70 - 7 15 16 - 7 7 56 - 7 19 4 - 7 4 8 0.34 126 0 0 - 7 33 12 2 5 35.5 43 308 71 - 7 36 52 - 7 29 32 - 7 40 41 - 7 25 43 0.34 127 0 0 - 7 55 3 2 5 38.7 42 308 72 - 7 58 44 - 7 51 22 - 8 2 32 - 7 47 34 0.34 128 0 0 - 8 17 8 2 5 41.8 41 307 73 - 8 20 49 - 8 13 27 - 8 24 38 - 8 9 39 0.34 129 0 0 - 8 39 28 2 5 44.9 40 307 74 - 8 43 9 - 8 35 47 - 8 46 58 - 8 31 58 0.34 130 0 0 - 9 2 1 2 5 47.8 39 307 75 - 9 5 43 - 8 58 19 - 9 9 32 - 8 54 30 0.34 131 0 0 - 9 24 47 2 5 50.8 38 306 76 - 9 28 29 - 9 21 5 - 9 32 19 - 9 17 16 0.34 132 0 0 - 9 47 45 2 5 53.6 37 306 77 - 9 51 28 - 9 44 3 - 9 55 18 - 9 40 13 0.34 133 0 0 -10 10 56 2 5 56.4 36 305 78 -10 14 38 -10 7 13 -10 18 29 -10 3 23 0.34 134 0 0 -10 34 17 2 5 59.1 35 305 79 -10 38 0 -10 30 35 -10 41 51 -10 26 44 0.34 135 0 0 -10 57 50 2 6 1.7 34 305 80 -11 1 33 -10 54 7 -11 5 24 -10 50 16 0.34 136 0 0 -11 21 32 2 6 4.3 33 304 81 -11 25 15 -11 17 49 -11 29 7 -11 13 58 0.34 137 0 0 -11 45 24 2 6 6.8 32 304 82 -11 49 8 -11 41 41 -11 52 59 -11 37 50 0.34 138 0 0 -12 9 25 2 6 9.2 31 304 83 -12 13 9 -12 5 42 -12 17 1 -12 1 50 0.34 139 0 0 -12 33 35 2 6 11.6 30 303 83 -12 37 18 -12 29 51 -12 41 10 -12 25 59 0.33 140 0 0 -12 57 51 2 6 13.8 29 303 84 -13 1 36 -12 54 7 -13 5 28 -12 50 16 0.33 141 0 0 -13 22 15 2 6 16.0 28 303 84 -13 26 0 -13 18 31 -13 29 52 -13 14 39 0.33 142 0 0 -13 46 46 2 6 18.1 27 302 84 -13 50 30 -13 43 1 -13 54 23 -13 39 9 0.33 143 0 0 -14 11 22 2 6 20.2 25 302 85 -14 15 7 -14 7 37 -14 18 59 -14 3 45 0.33 144 0 0 -14 36 3 2 6 22.1 24 302 84 -14 39 48 -14 32 19 -14 43 41 -14 28 26 0.33 145 0 0 -15 0 49 2 6 24.0 23 301 84 -15 4 34 -14 57 4 -15 8 27 -14 53 11 0.33 146 0 0 -15 25 39 2 6 25.8 22 301 83 -15 29 24 -15 21 54 -15 33 17 -15 18 1 0.33 147 0 0 -15 50 31 2 6 27.5 21 301 83 -15 54 17 -15 46 46 -15 58 10 -15 42 53 0.33 148 0 0 -16 15 27 2 6 29.2 20 300 82 -16 19 12 -16 11 42 -16 23 6 -16 7 48 0.33 149 0 0 -16 40 24 2 6 30.7 19 300 81 -16 44 9 -16 36 39 -16 48 3 -16 32 45 0.33 150 0 0 -17 5 22 2 6 32.2 18 300 80 -17 9 8 -17 1 37 -17 13 2 -16 57 44 0.33 151 0 0 -17 30 22 2 6 33.6 17 299 80 -17 34 7 -17 26 36 -17 38 1 -17 22 43 0.33 152 0 0 -17 55 21 2 6 34.9 16 299 79 -17 59 6 -17 51 35 -18 3 0 -17 47 41 0.33 153 0 0 -18 20 19 2 6 36.1 15 299 78 -18 24 5 -18 16 33 -18 27 58 -18 12 40 0.33 154 0 0 -18 45 16 2 6 37.2 14 298 77 -18 49 2 -18 41 30 -18 52 56 -18 37 37 0.33 155 0 0 -19 10 11 2 6 38.3 13 298 76 -19 13 57 -19 6 25 -19 17 51 -19 2 31 0.33 156 0 0 -19 35 3 2 6 39.3 12 298 75 -19 38 49 -19 31 18 -19 42 43 -19 27 24 0.33 157 0 0 -19 59 52 2 6 40.2 11 297 74 -20 3 38 -19 56 7 -20 7 32 -19 52 13 0.34 158 0 0 -20 24 38 2 6 41.0 10 297 73 -20 28 24 -20 20 52 -20 32 18 -20 16 58 0.34 159 0 0 -20 49 19 2 6 41.7 9 297 72 -20 53 5 -20 45 33 -20 56 58 -20 41 39 0.34 160 0 0 -21 13 55 2 6 42.4 8 296 71 -21 17 40 -21 10 9 -21 21 34 -21 6 15 0.34 161 0 0 -21 38 25 2 6 42.9 7 296 70 -21 42 11 -21 34 39 -21 46 5 -21 30 46 0.34 162 0 0 -22 2 49 2 6 43.4 6 295 69 -22 6 35 -21 59 4 -22 10 28 -21 55 10 0.34 163 0 0 -22 27 6 2 6 43.8 5 295 68 -22 30 52 -22 23 21 -22 34 46 -22 19 28 0.34 164 0 0 -22 51 16 2 6 44.2 4 295 67 -22 55 2 -22 47 31 -22 58 55 -22 43 38 0.34 165 0 0 -23 15 19 2 6 44.4 3 294 66 -23 19 4 -23 11 33 -23 22 57 -23 7 40 0.34 166 0 0 -23 39 12 2 6 44.6 2 294 65 -23 42 58 -23 35 27 -23 46 51 -23 31 34 0.34 167 0 0 -24 2 57 2 6 44.7 1 293 64 -24 6 42 -23 59 12 -24 10 35 -23 55 19 0.36 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 1416-01151-1 * constellation : Leo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 09 36 52.1126 DE: +21 07 54.553 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 09 36 52.1128 DE: +21 07 54.552 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 11.4 * B mag [mag]: 11.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (33812) 1999 XS173 asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.005 distance from Earth [AU]: 3.44620 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#51 date of fit: 2022 Nov 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): 0.009", 0.002", 104.443° remarks: * orbital elements for (33812)1999 XS173 : Mean anomaly = 138.1419970285 deg Arg. of pericenter = 239.0063284615 deg Long. of node = 90.3570190513 deg Inclination = 13.1946386154 deg Eccentricity = 0.2674791419 Semimajor axis = 2.5588999671 AU Perihelion dist = 1.8744475997 AU Mag: H = 13.33, G = 0.15 Epoch of elements : MJD 60599.08541088 TDT (2024 Oct 16.0854) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#512022Nov24,0.45,2024,10,16,2.049864,-0.041176,-0.318927,15.008696,-1.926283,-0.004831,0.001981,-0.000001,0.000000 88.7269,21.0217,145.64,-9.02,False TYC 1416-01151-1,9.61447570,21.1318206,11.63,11.36,11.21,0.0,0,,9.63753736,21.0216725,8.02,7.72,0,0,0 33812,1999 XS173,19.38,12.065,3.4462,0,0,2.735,-4.92,,0.8,0 0,138.1214,2024,10,16,239.0063,90.3570,13.1946,0.26748,2.55890,1.87445,13.33,5.0,0.15 1.518,0.0087,0.0023,104,0.0025,Known errors,1.84,0,-1,-1 20241016_1151-1,60140.64 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:18 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org