IOTA/IOTA-ES occultation update for (519) Sylvania / TYC 4683-01549-1 event on 2024 Jul 20, 01:53 UT Visible from Summary ------- On 2024 Jul 20 UT, the 45.043 km diameter asteroid (519) Sylvania will occult a 10.9 mag star in the constellation Cetus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.45 mag to 13.21 mag (the magnitude of the asteroid) for at most 4.020 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 Jul 20, 01:44 - 2024 Jul 20, 02:03 * geocentric midpoint of event [JD]: 2460511.57894554 * magnitude of target star: 10.88 * magnitude drop [mag]: 2.45 * estimated maximum duration [s]: 4.020 * Moon: 97 % sunlit, 92° distance * Sun: 105° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 45 * 1 sigma uncertainty interval [path widths]: +/- 0.22 * 1 sigma uncertainty interval [seconds]: +/- 2.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.012) * 1 sigma uncertainty ellipse (major, minor, PA): (0.022", 0.002", 57°) * approx speed of asteroid's shadow [km/s]: 11.1911 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 4683-01549-1 by 519 Sylvania on 2024 Jul 20 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 - 40 0 0 -13 35 30 1 44 11.3 0 96 -73 -13 47 48 -13 23 12 -13 53 15 -13 17 45 .... - 39 0 0 -13 42 4 1 44 11.4 1 96 -74 -13 54 21 -13 29 46 -13 59 48 -13 24 19 0.04 - 38 0 0 -13 48 23 1 44 11.7 2 96 -75 -14 0 40 -13 36 6 -14 6 7 -13 30 38 0.02 - 37 0 0 -13 54 27 1 44 12.1 3 96 -76 -14 6 44 -13 42 10 -14 12 11 -13 36 43 0.02 - 36 0 0 -14 0 17 1 44 12.7 4 96 -77 -14 12 33 -13 48 0 -14 18 0 -13 42 33 0.01 - 35 0 0 -14 5 51 1 44 13.4 5 95 -78 -14 18 7 -13 53 35 -14 23 34 -13 48 8 0.01 - 34 0 0 -14 11 11 1 44 14.4 6 95 -79 -14 23 26 -13 58 55 -14 28 53 -13 53 28 0.01 - 33 0 0 -14 16 15 1 44 15.5 7 95 -80 -14 28 30 -14 4 0 -14 33 57 -13 58 33 0.01 - 32 0 0 -14 21 4 1 44 16.7 8 95 -80 -14 33 19 -14 8 49 -14 38 46 -14 3 23 0.01 - 31 0 0 -14 25 38 1 44 18.1 9 94 -81 -14 37 53 -14 13 23 -14 43 19 -14 7 57 0.01 - 30 0 0 -14 29 57 1 44 19.7 10 94 -82 -14 42 11 -14 17 42 -14 47 38 -14 12 16 0.00 - 29 0 0 -14 34 0 1 44 21.5 11 94 -82 -14 46 14 -14 21 45 -14 51 40 -14 16 19 0.00 - 28 0 0 -14 37 47 1 44 23.4 12 94 -83 -14 50 1 -14 25 33 -14 55 27 -14 20 7 0.00 - 27 0 0 -14 41 19 1 44 25.5 13 93 -83 -14 53 33 -14 29 5 -14 58 59 -14 23 39 0.00 - 26 0 0 -14 44 35 1 44 27.7 14 93 -84 -14 56 49 -14 32 21 -15 2 15 -14 26 55 0.00 - 25 0 0 -14 47 35 1 44 30.1 15 93 -84 -14 59 49 -14 35 21 -15 5 15 -14 29 55 0.00 - 24 0 0 -14 50 20 1 44 32.6 16 93 -84 -15 2 33 -14 38 6 -15 7 59 -14 32 40 0.00 - 23 0 0 -14 52 48 1 44 35.4 17 92 -84 -15 5 1 -14 40 35 -15 10 27 -14 35 9 0.00 - 22 0 0 -14 55 1 1 44 38.2 18 92 -84 -15 7 14 -14 42 47 -15 12 40 -14 37 22 0.00 - 21 0 0 -14 56 57 1 44 41.3 19 92 -83 -15 9 10 -14 44 44 -15 14 36 -14 39 18 0.00 - 20 0 0 -14 58 38 1 44 44.5 20 92 -83 -15 10 51 -14 46 25 -15 16 16 -14 40 59 0.00 - 19 0 0 -15 0 2 1 44 47.8 21 91 -82 -15 12 15 -14 47 49 -15 17 40 -14 42 23 0.00 - 18 0 0 -15 1 10 1 44 51.3 22 91 -81 -15 13 23 -14 48 57 -15 18 48 -14 43 31 0.00 - 17 0 0 -15 2 2 1 44 55.0 23 91 -81 -15 14 15 -14 49 49 -15 19 40 -14 44 23 0.00 - 16 0 0 -15 2 37 1 44 58.8 24 90 -80 -15 14 50 -14 50 25 -15 20 16 -14 44 59 0.00 - 15 0 0 -15 2 57 1 45 2.8 25 90 -79 -15 15 9 -14 50 44 -15 20 35 -14 45 18 0.00 - 14 0 0 -15 3 0 1 45 7.0 26 90 -78 -15 15 12 -14 50 47 -15 20 38 -14 45 21 0.00 - 13 0 0 -15 2 46 1 45 11.2 27 90 -77 -15 14 59 -14 50 34 -15 20 25 -14 45 8 0.00 - 12 0 0 -15 2 17 1 45 15.7 27 89 -77 -15 14 29 -14 50 4 -15 19 55 -14 44 38 0.00 - 11 0 0 -15 1 30 1 45 20.3 28 89 -76 -15 13 43 -14 49 17 -15 19 9 -14 43 52 0.00 - 10 0 0 -15 0 28 1 45 25.0 29 89 -75 -15 12 41 -14 48 15 -15 18 6 -14 42 49 0.00 - 9 0 0 -14 59 9 1 45 29.9 30 89 -74 -15 11 21 -14 46 56 -15 16 47 -14 41 30 0.00 - 8 0 0 -14 57 33 1 45 35.0 31 88 -73 -15 9 46 -14 45 20 -15 15 12 -14 39 54 0.00 - 7 0 0 -14 55 41 1 45 40.2 32 88 -72 -15 7 54 -14 43 28 -15 13 20 -14 38 2 0.00 - 6 0 0 -14 53 32 1 45 45.5 33 88 -71 -15 5 46 -14 41 19 -15 11 11 -14 35 53 0.00 - 5 0 0 -14 51 7 1 45 51.0 34 88 -70 -15 3 21 -14 38 54 -15 8 46 -14 33 28 0.00 - 4 0 0 -14 48 25 1 45 56.6 35 87 -69 -15 0 39 -14 36 12 -15 6 5 -14 30 46 0.00 - 3 0 0 -14 45 27 1 46 2.4 36 87 -68 -14 57 41 -14 33 14 -15 3 7 -14 27 48 0.00 - 2 0 0 -14 42 13 1 46 8.4 37 87 -67 -14 54 27 -14 29 59 -14 59 53 -14 24 33 0.00 - 1 0 0 -14 38 42 1 46 14.4 38 87 -66 -14 50 56 -14 26 27 -14 56 22 -14 21 1 0.00 0 0 0 -14 34 54 1 46 20.6 39 86 -65 -14 47 8 -14 22 40 -14 52 35 -14 17 13 0.00 1 0 0 -14 30 50 1 46 27.0 40 86 -64 -14 43 5 -14 18 35 -14 48 31 -14 13 9 0.00 2 0 0 -14 26 30 1 46 33.5 41 86 -63 -14 38 45 -14 14 15 -14 44 11 -14 8 48 0.00 3 0 0 -14 21 53 1 46 40.1 42 86 -63 -14 34 8 -14 9 38 -14 39 35 -14 4 11 0.00 4 0 0 -14 17 0 1 46 46.9 43 85 -62 -14 29 15 -14 4 44 -14 34 42 -13 59 17 0.00 5 0 0 -14 11 50 1 46 53.8 44 85 -61 -14 24 6 -13 59 34 -14 29 33 -13 54 7 0.00 6 0 0 -14 6 24 1 47 0.8 45 85 -60 -14 18 40 -13 54 8 -14 24 7 -13 48 41 0.00 7 0 0 -14 0 42 1 47 8.0 46 85 -59 -14 12 58 -13 48 26 -14 18 26 -13 42 58 0.00 8 0 0 -13 54 44 1 47 15.3 47 84 -58 -14 7 0 -13 42 27 -14 12 28 -13 37 0 0.00 9 0 0 -13 48 29 1 47 22.7 48 84 -57 -14 0 46 -13 36 12 -14 6 14 -13 30 45 0.00 10 0 0 -13 41 59 1 47 30.2 49 84 -56 -13 54 16 -13 29 41 -13 59 44 -13 24 13 0.00 11 0 0 -13 35 12 1 47 37.9 50 84 -55 -13 47 30 -13 22 54 -13 52 58 -13 17 26 0.00 12 0 0 -13 28 9 1 47 45.7 51 83 -54 -13 40 28 -13 15 51 -13 45 56 -13 10 23 0.00 13 0 0 -13 20 51 1 47 53.6 52 83 -53 -13 33 10 -13 8 32 -13 38 38 -13 3 4 0.00 14 0 0 -13 13 17 1 48 1.7 53 83 -52 -13 25 36 -13 0 58 -13 31 4 -12 55 29 0.00 15 0 0 -13 5 27 1 48 9.9 54 83 -51 -13 17 46 -12 53 7 -13 23 15 -12 47 39 0.00 16 0 0 -12 57 21 1 48 18.1 55 82 -50 -13 9 41 -12 45 1 -13 15 10 -12 39 33 0.00 17 0 0 -12 49 0 1 48 26.5 56 82 -49 -13 1 21 -12 36 40 -13 6 50 -12 31 11 0.00 18 0 0 -12 40 24 1 48 35.0 58 82 -48 -12 52 45 -12 28 3 -12 58 14 -12 22 34 0.00 19 0 0 -12 31 32 1 48 43.7 59 82 -47 -12 43 53 -12 19 10 -12 49 23 -12 13 41 0.00 20 0 0 -12 22 25 1 48 52.4 60 81 -46 -12 34 47 -12 10 3 -12 40 16 -12 4 33 0.00 21 0 0 -12 13 3 1 49 1.2 61 81 -45 -12 25 25 -12 0 40 -12 30 55 -11 55 10 0.00 22 0 0 -12 3 26 1 49 10.2 62 81 -44 -12 15 48 -11 51 3 -12 21 18 -11 45 33 0.00 23 0 0 -11 53 34 1 49 19.2 63 81 -43 -12 5 57 -11 41 10 -12 11 27 -11 35 40 0.00 24 0 0 -11 43 27 1 49 28.3 64 81 -42 -11 55 51 -11 31 3 -12 1 21 -11 25 33 0.00 25 0 0 -11 33 6 1 49 37.6 65 80 -41 -11 45 30 -11 20 42 -11 51 1 -11 15 11 0.00 26 0 0 -11 22 30 1 49 46.9 66 80 -39 -11 34 55 -11 10 6 -11 40 26 -11 4 35 0.00 27 0 0 -11 11 41 1 49 56.3 67 80 -38 -11 24 6 -10 59 15 -11 29 37 -10 53 44 0.00 28 0 0 -11 0 37 1 50 5.8 68 80 -37 -11 13 3 -10 48 11 -11 18 34 -10 42 40 0.00 29 0 0 -10 49 19 1 50 15.4 69 80 -36 -11 1 46 -10 36 53 -11 7 17 -10 31 21 0.00 30 0 0 -10 37 48 1 50 25.1 70 79 -35 -10 50 15 -10 25 21 -10 55 47 -10 19 49 0.00 31 0 0 -10 26 3 1 50 34.9 71 79 -34 -10 38 30 -10 13 35 -10 44 2 -10 8 3 0.00 32 0 0 -10 14 5 1 50 44.7 72 79 -33 -10 26 33 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0 - 0 39 14 1 57 19.4 67 255 7 - 0 51 55 - 0 26 33 - 0 57 34 - 0 20 55 0.00 71 0 0 - 0 22 24 1 57 29.3 66 255 8 - 0 35 5 - 0 9 42 - 0 40 43 - 0 4 4 0.00 72 0 0 - 0 5 33 1 57 39.0 65 255 9 - 0 18 14 0 7 8 - 0 23 52 0 12 47 0.00 73 0 0 0 11 18 1 57 48.7 64 255 10 - 0 1 23 0 23 59 - 0 7 2 0 29 37 0.00 74 0 0 0 28 8 1 57 58.3 63 255 11 0 15 27 0 40 49 0 9 49 0 46 27 0.01 75 0 0 0 44 57 1 58 7.9 62 255 12 0 32 16 0 57 38 0 26 38 1 3 16 0.01 76 0 0 1 1 45 1 58 17.3 61 255 13 0 49 4 1 14 26 0 43 26 1 20 4 0.01 77 0 0 1 18 31 1 58 26.6 60 255 14 1 5 50 1 31 12 1 0 12 1 36 50 0.01 78 0 0 1 35 15 1 58 35.8 59 255 16 1 22 34 1 47 56 1 16 56 1 53 34 0.01 79 0 0 1 51 56 1 58 44.9 58 255 17 1 39 15 2 4 37 1 33 37 2 10 15 0.01 80 0 0 2 8 35 1 58 53.8 57 255 18 1 55 54 2 21 15 1 50 16 2 26 53 0.01 81 0 0 2 25 10 1 59 2.7 56 255 19 2 12 29 2 37 50 2 6 52 2 43 28 0.01 82 0 0 2 41 41 1 59 11.4 55 255 20 2 29 1 2 54 21 2 23 23 2 59 59 0.01 83 0 0 2 58 9 1 59 20.0 54 255 21 2 45 29 3 10 49 2 39 51 3 16 26 0.01 84 0 0 3 14 32 1 59 28.5 52 255 22 3 1 52 3 27 11 2 56 15 3 32 49 0.01 85 0 0 3 30 50 1 59 36.9 51 255 23 3 18 11 3 43 29 3 12 33 3 49 7 0.01 86 0 0 3 47 3 1 59 45.1 50 255 24 3 34 24 3 59 42 3 28 47 4 5 20 0.01 87 0 0 4 3 11 1 59 53.2 49 255 25 3 50 32 4 15 50 3 44 55 4 21 27 0.01 88 0 0 4 19 13 2 0 1.2 48 256 26 4 6 34 4 31 51 4 0 57 4 37 28 0.01 89 0 0 4 35 8 2 0 9.0 47 256 27 4 22 30 4 47 46 4 16 53 4 53 23 0.01 90 0 0 4 50 57 2 0 16.6 46 256 28 4 38 19 5 3 35 4 32 43 5 9 12 0.01 91 0 0 5 6 39 2 0 24.2 45 256 29 4 54 2 5 19 17 4 48 25 5 24 54 0.01 92 0 0 5 22 14 2 0 31.5 44 256 30 5 9 37 5 34 52 5 4 1 5 40 28 0.01 93 0 0 5 37 42 2 0 38.8 43 256 31 5 25 5 5 50 19 5 19 29 5 55 55 0.01 94 0 0 5 53 2 2 0 45.8 42 256 33 5 40 25 6 5 38 5 34 49 6 11 14 0.01 95 0 0 6 8 13 2 0 52.8 41 256 34 5 55 37 6 20 49 5 50 1 6 26 25 0.01 96 0 0 6 23 16 2 0 59.5 40 256 35 6 10 41 6 35 52 6 5 5 6 41 28 0.01 97 0 0 6 38 11 2 1 6.1 39 256 36 6 25 35 6 50 46 6 20 0 6 56 21 0.01 98 0 0 6 52 56 2 1 12.6 38 257 37 6 40 21 7 5 31 6 34 46 7 11 6 0.01 99 0 0 7 7 32 2 1 18.8 37 257 38 6 54 58 7 20 6 6 49 23 7 25 41 0.01 100 0 0 7 21 58 2 1 25.0 36 257 39 7 9 25 7 34 32 7 3 50 7 40 7 0.01 101 0 0 7 36 15 2 1 30.9 34 257 40 7 23 42 7 48 49 7 18 7 7 54 23 0.01 102 0 0 7 50 22 2 1 36.7 33 257 41 7 37 49 8 2 55 7 32 14 8 8 29 0.01 103 0 0 8 4 18 2 1 42.3 32 257 42 7 51 45 8 16 50 7 46 11 8 22 25 0.01 104 0 0 8 18 3 2 1 47.8 31 257 43 8 5 31 8 30 35 7 59 57 8 36 9 0.01 105 0 0 8 31 38 2 1 53.0 30 258 44 8 19 7 8 44 10 8 13 33 8 49 43 0.01 106 0 0 8 45 2 2 1 58.2 29 258 45 8 32 31 8 57 33 8 26 57 9 3 6 0.01 107 0 0 8 58 14 2 2 3.1 28 258 46 8 45 44 9 10 45 8 40 10 9 16 18 0.01 108 0 0 9 11 15 2 2 7.9 27 258 47 8 58 45 9 23 45 8 53 12 9 29 18 0.01 109 0 0 9 24 4 2 2 12.5 26 258 48 9 11 34 9 36 34 9 6 1 9 42 7 0.01 110 0 0 9 36 41 2 2 16.9 25 258 49 9 24 12 9 49 10 9 18 39 9 54 43 0.01 111 0 0 9 49 6 2 2 21.1 24 258 50 9 36 38 10 1 35 9 31 5 10 7 7 0.01 112 0 0 10 1 19 2 2 25.2 23 259 51 9 48 51 10 13 47 9 43 19 10 19 19 0.01 113 0 0 10 13 19 2 2 29.1 22 259 52 10 0 52 10 25 47 9 55 20 10 31 19 0.01 114 0 0 10 25 7 2 2 32.8 21 259 53 10 12 40 10 37 34 10 7 8 10 43 6 0.01 115 0 0 10 36 42 2 2 36.4 20 259 54 10 24 15 10 49 8 10 18 43 10 54 40 0.01 116 0 0 10 48 3 2 2 39.8 19 259 55 10 35 37 11 0 30 10 30 6 11 6 1 0.01 117 0 0 10 59 12 2 2 43.0 18 260 56 10 46 46 11 11 38 10 41 15 11 17 9 0.01 118 0 0 11 10 7 2 2 46.0 17 260 57 10 57 42 11 22 32 10 52 11 11 28 3 0.01 119 0 0 11 20 49 2 2 48.8 16 260 58 11 8 25 11 33 14 11 2 54 11 38 45 0.01 120 0 0 11 31 17 2 2 51.5 15 260 59 11 18 53 11 43 42 11 13 23 11 49 12 0.01 121 0 0 11 41 32 2 2 54.0 14 260 60 11 29 8 11 53 56 11 23 38 11 59 26 0.01 122 0 0 11 51 33 2 2 56.3 13 261 61 11 39 10 12 3 56 11 33 39 12 9 26 0.01 123 0 0 12 1 19 2 2 58.5 12 261 62 11 48 57 12 13 42 11 43 27 12 19 12 0.01 124 0 0 12 10 52 2 3 0.5 11 261 63 11 58 30 12 23 14 11 53 0 12 28 44 0.01 125 0 0 12 20 11 2 3 2.3 10 261 64 12 7 49 12 32 32 12 2 19 12 38 2 0.01 126 0 0 12 29 15 2 3 3.9 9 261 65 12 16 53 12 41 36 12 11 24 12 47 5 0.01 127 0 0 12 38 5 2 3 5.4 8 262 66 12 25 44 12 50 25 12 20 15 12 55 54 0.01 128 0 0 12 46 40 2 3 6.7 7 262 67 12 34 19 12 59 0 12 28 50 13 4 29 0.01 129 0 0 12 55 1 2 3 7.8 6 262 68 12 42 41 13 7 21 12 37 12 13 12 49 0.01 130 0 0 13 3 7 2 3 8.7 5 262 69 12 50 47 13 15 26 12 45 19 13 20 55 0.02 131 0 0 13 10 58 2 3 9.5 4 263 70 12 58 39 13 23 17 12 53 11 13 28 46 0.02 132 0 0 13 18 35 2 3 10.1 3 263 71 13 6 16 13 30 54 13 0 48 13 36 22 0.02 133 0 0 13 25 57 2 3 10.6 2 263 71 13 13 38 13 38 15 13 8 10 13 43 43 0.03 134 0 0 13 33 3 2 3 10.8 1 263 72 13 20 45 13 45 21 13 15 17 13 50 49 0.05 135 0 0 13 39 55 2 3 10.9 0 263 73 13 27 38 13 52 13 13 22 10 13 57 40 0.32 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: TYC 4683-01549-1 * constellation : Cetus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 01 02 04.7422 DE: -06 28 03.269 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 01 02 04.7424 DE: -06 28 03.268 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.400,0.400) * V mag [mag]: 10.9 * B mag [mag]: 11.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (519) Sylvania asteroid class: approx. diameter [km]: 45 approx. diameter ["]: 0.035 distance from Earth [AU]: 1.78900 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 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): 0.022", 0.002", 56.664° remarks: * orbital elements for (519)Sylvania : Mean anomaly = 358.5329844533 deg Arg. of pericenter = 302.9915678895 deg Long. of node = 44.6812929499 deg Inclination = 11.0125137145 deg Eccentricity = 0.1828986562 Semimajor axis = 2.7902940517 AU Perihelion dist = 2.2799530193 AU Mag: H = 8.99, G = 0.15 Epoch of elements : MJD 60511.07894546 TDT (2024 Jul 20.0789) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Apr24,4.02,2024,7,20,1.894693,-0.000467,0.000790,6.138687,1.488397,-0.004798,-0.001708,0.000000,0.000000 49.0655,-6.3339,153.19,20.59,False TYC 4683-01549-1,1.03465059,-6.4675747,11.16,10.88,10.73,0.0,0,,1.05539366,-6.3339141,2.45,2.19,0,0,0 519,Sylvania,13.21,45.043,1.7890,0,0,2.024,7.32,,2.6,0 0,358.3048,2024,7,19,302.9916,44.6813,11.0125,0.18290,2.79029,2.27995,8.99,5.0,0.15 1.222,0.0220,0.0023,57,0.0077,Known errors,1.81,0,-1,-1 20240720_1549-1,60140.21 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 05:02 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org