IOTA/IOTA-ES occultation update for (54) Alexandra / TYC 7380-00962-1 event on 2023 Feb 05, 07:52 UT Visible from South America Summary ------- On 2023 Feb 05 UT, the 152.1 km diameter asteroid (54) Alexandra will occult a 9.9 mag star in the constellation Scorpius for observers along a path across South America. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.08 mag to 12.95 mag (the magnitude of the asteroid) for at most 3.870 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: 100 * date and approx. time of event: 2023 Feb 05, 07:50 - 2023 Feb 05, 07:55 * geocentric midpoint of event [JD]: 2459980.82827513 * magnitude of target star: 9.94 * magnitude drop [mag]: 3.08 * estimated maximum duration [s]: 3.870 * Moon: 100 % sunlit, 134° distance * Sun: 52° distance * rough path description: South America The occultation path -------------------- * approximate projected width [km]: 161 * 1 sigma uncertainty interval [path widths]: +/- 0.03 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.001", 85°) * approx speed of asteroid's shadow [km/s]: 39.2928 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 7380-00962-1 by 54 Alexandra on 2023 Feb 5 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 - 87 0 0 -13 16 0 7 50 9.7 0 123 -50 -14 8 41 .. .. .. -14 12 7 .. .. .. .... - 86 0 0 -13 54 56 7 50 9.8 1 123 -49 -14 47 44 -13 2 28 -14 51 9 -12 59 6 0.34 - 85 0 0 -14 34 1 7 50 9.9 3 123 -48 -15 26 55 -13 41 27 -15 30 21 -13 38 4 0.35 - 84 0 0 -15 13 13 7 50 10.1 4 123 -47 -16 6 14 -14 20 34 -16 9 40 -14 17 10 0.35 - 83 0 0 -15 52 32 7 50 10.3 5 122 -46 -16 45 38 -14 59 47 -16 49 5 -14 56 23 0.35 - 82 0 0 -16 31 56 7 50 10.7 6 122 -45 -17 25 7 -15 39 6 -17 28 34 -15 35 42 0.35 - 81 0 0 -17 11 24 7 50 11.1 7 122 -44 -18 4 39 -16 18 29 -18 8 6 -16 15 5 0.35 - 80 0 0 -17 50 53 7 50 11.6 8 121 -42 -18 44 13 -16 57 55 -18 47 41 -16 54 30 0.36 - 79 0 0 -18 30 24 7 50 12.1 10 121 -41 -19 23 47 -17 37 21 -19 27 15 -17 33 56 0.36 - 78 0 0 -19 9 53 7 50 12.7 11 121 -40 -20 3 20 -18 16 48 -20 6 48 -18 13 22 0.36 - 77 0 0 -19 49 21 7 50 13.4 12 120 -39 -20 42 51 -18 56 12 -20 46 19 -18 52 47 0.36 - 76 0 0 -20 28 45 7 50 14.1 13 120 -38 -21 22 17 -19 35 34 -21 25 45 -19 32 9 0.36 - 75 0 0 -21 8 4 7 50 14.9 14 120 -37 -22 1 38 -20 14 51 -22 5 6 -20 11 26 0.36 - 74 0 0 -21 47 17 7 50 15.8 15 119 -36 -22 40 52 -20 54 3 -22 44 21 -20 50 37 0.36 - 73 0 0 -22 26 22 7 50 16.7 16 119 -34 -23 19 58 -21 33 7 -23 23 27 -21 29 41 0.36 - 72 0 0 -23 5 18 7 50 17.7 17 118 -33 -23 58 54 -22 12 2 -24 2 23 -22 8 37 0.36 - 71 0 0 -23 44 3 7 50 18.8 19 118 -32 -24 37 39 -22 50 48 -24 41 8 -22 47 22 0.36 - 70 0 0 -24 22 36 7 50 19.9 20 118 -31 -25 16 12 -23 29 22 -25 19 41 -23 25 56 0.36 - 69 0 0 -25 0 57 7 50 21.1 21 117 -30 -25 54 32 -24 7 44 -25 58 0 -24 4 18 0.36 - 68 0 0 -25 39 3 7 50 22.3 22 117 -29 -26 32 36 -24 45 51 -26 36 5 -24 42 26 0.36 - 67 0 0 -26 16 54 7 50 23.5 23 116 -28 -27 10 25 -25 23 44 -27 13 53 -25 20 19 0.36 - 66 0 0 -26 54 28 7 50 24.9 24 116 -27 -27 47 56 -26 1 21 -27 51 24 -25 57 55 0.36 - 65 0 0 -27 31 44 7 50 26.2 25 115 -26 -28 25 9 -26 38 40 -28 28 37 -26 35 15 0.36 - 64 0 0 -28 8 41 7 50 27.6 26 115 -25 -29 2 2 -27 15 40 -29 5 30 -27 12 15 0.36 - 63 0 0 -28 45 18 7 50 29.1 27 114 -23 -29 38 35 -27 52 21 -29 42 3 -27 48 56 0.36 - 62 0 0 -29 21 33 7 50 30.6 28 113 -22 -30 14 46 -28 28 41 -30 18 13 -28 25 17 0.36 - 61 0 0 -29 57 27 7 50 32.1 29 113 -21 -30 50 35 -29 4 39 -30 54 2 -29 1 15 0.36 - 60 0 0 -30 32 57 7 50 33.7 30 112 -20 -31 26 0 -29 40 15 -31 29 26 -29 36 52 0.36 - 59 0 0 -31 8 4 7 50 35.3 31 111 -19 -32 1 1 -30 15 27 -32 4 27 -30 12 4 0.36 - 58 0 0 -31 42 46 7 50 37.0 32 111 -18 -32 35 36 -30 50 15 -32 39 2 -30 46 52 0.36 - 57 0 0 -32 17 2 7 50 38.6 33 110 -17 -33 9 46 -31 24 38 -33 13 11 -31 21 15 0.36 - 56 0 0 -32 50 52 7 50 40.3 34 109 -16 -33 43 29 -31 58 35 -33 46 53 -31 55 13 0.36 - 55 0 0 -33 24 15 7 50 42.1 35 109 -15 -34 16 44 -32 32 5 -34 20 8 -32 28 43 0.36 - 54 0 0 -33 57 10 7 50 43.9 36 108 -14 -34 49 32 -33 5 8 -34 52 56 -33 1 46 0.36 - 53 0 0 -34 29 37 7 50 45.6 37 107 -13 -35 21 51 -33 37 43 -35 25 14 -33 34 22 0.36 - 52 0 0 -35 1 35 7 50 47.5 38 106 -12 -35 53 41 -34 9 49 -35 57 4 -34 6 29 0.36 - 51 0 0 -35 33 4 7 50 49.3 39 106 -11 -36 25 1 -34 41 27 -36 28 23 -34 38 7 0.36 - 50 0 0 -36 4 4 7 50 51.2 40 105 -10 -36 55 52 -35 12 35 -36 59 13 -35 9 16 0.36 - 49 0 0 -36 34 33 7 50 53.0 41 104 -9 -37 26 12 -35 43 13 -37 29 33 -35 39 54 0.35 - 48 0 0 -37 4 32 7 50 54.9 42 103 -8 -37 56 1 -36 13 21 -37 59 22 -36 10 3 0.35 - 47 0 0 -37 34 0 7 50 56.8 43 102 -7 -38 25 20 -36 42 58 -38 28 39 -36 39 41 0.35 - 46 0 0 -38 2 57 7 50 58.7 44 101 -6 -38 54 7 -37 12 5 -38 57 26 -37 8 48 0.35 - 45 0 0 -38 31 23 7 51 0.7 45 100 -6 -39 22 23 -37 40 41 -39 25 41 -37 37 25 0.35 - 44 0 0 -38 59 17 7 51 2.6 45 99 -5 -39 50 7 -38 8 45 -39 53 25 -38 5 30 0.35 - 43 0 0 -39 26 40 7 51 4.6 46 98 -4 -40 17 19 -38 36 18 -40 20 36 -38 33 3 0.35 - 42 0 0 -39 53 31 7 51 6.5 47 97 -3 -40 44 0 -39 3 19 -40 47 16 -39 0 5 0.35 - 41 0 0 -40 19 50 7 51 8.5 48 96 -2 -41 10 9 -39 29 49 -41 13 25 -39 26 35 0.35 - 40 0 0 -40 45 38 7 51 10.5 49 95 -1 -41 35 46 -39 55 47 -41 39 1 -39 52 34 0.35 - 39 0 0 -41 10 53 7 51 12.5 49 94 0 -42 0 51 -40 21 13 -42 4 5 -40 18 1 0.35 - 38 0 0 -41 35 37 7 51 14.4 50 93 1 -42 25 24 -40 46 7 -42 28 37 -40 42 56 0.35 - 37 0 0 -41 59 49 7 51 16.4 51 92 2 -42 49 25 -41 10 30 -42 52 38 -41 7 19 0.35 - 36 0 0 -42 23 30 7 51 18.4 52 91 2 -43 12 55 -41 34 21 -43 16 7 -41 31 11 0.35 - 35 0 0 -42 46 38 7 51 20.4 53 90 3 -43 35 53 -41 57 40 -43 39 4 -41 54 31 0.35 - 34 0 0 -43 9 15 7 51 22.4 53 89 4 -43 58 19 -42 20 28 -44 1 30 -42 17 19 0.35 - 33 0 0 -43 31 21 7 51 24.4 54 87 5 -44 20 14 -42 42 44 -44 23 24 -42 39 36 0.35 - 32 0 0 -43 52 56 7 51 26.4 55 86 6 -44 41 38 -43 4 29 -44 44 47 -43 1 22 0.35 - 31 0 0 -44 13 59 7 51 28.4 55 85 6 -45 2 31 -43 25 43 -45 5 39 -43 22 37 0.35 - 30 0 0 -44 34 32 7 51 30.3 56 84 7 -45 22 53 -43 46 26 -45 26 1 -43 43 20 0.35 - 29 0 0 -44 54 34 7 51 32.3 57 82 8 -45 42 44 -44 6 39 -45 45 51 -44 3 33 0.35 - 28 0 0 -45 14 5 7 51 34.3 57 81 9 -46 2 5 -44 26 20 -46 5 12 -44 23 16 0.35 - 27 0 0 -45 33 6 7 51 36.3 58 79 9 -46 20 56 -44 45 32 -46 24 2 -44 42 28 0.35 - 26 0 0 -45 51 37 7 51 38.3 59 78 10 -46 39 16 -45 4 13 -46 42 22 -45 1 9 0.35 - 25 0 0 -46 9 38 7 51 40.2 59 77 11 -46 57 7 -45 22 24 -47 0 12 -45 19 21 0.35 - 24 0 0 -46 27 10 7 51 42.2 60 75 12 -47 14 29 -45 40 5 -47 17 33 -45 37 3 0.35 - 23 0 0 -46 44 12 7 51 44.1 60 74 12 -47 31 21 -45 57 17 -47 34 25 -45 54 16 0.35 - 22 0 0 -47 0 45 7 51 46.1 61 72 13 -47 47 45 -46 14 0 -47 50 48 -46 10 59 0.35 - 21 0 0 -47 16 50 7 51 48.0 62 70 14 -48 3 40 -46 30 13 -48 6 42 -46 27 13 0.35 - 20 0 0 -47 32 25 7 51 50.0 62 69 15 -48 19 6 -46 45 58 -48 22 8 -46 42 59 0.35 - 19 0 0 -47 47 33 7 51 51.9 63 67 15 -48 34 4 -47 1 15 -48 37 5 -46 58 16 0.35 - 18 0 0 -48 2 12 7 51 53.8 63 65 16 -48 48 35 -47 16 3 -48 51 35 -47 13 4 0.35 - 17 0 0 -48 16 23 7 51 55.8 64 63 17 -49 2 37 -47 30 23 -49 5 37 -47 27 25 0.35 - 16 0 0 -48 30 7 7 51 57.7 64 62 17 -49 16 13 -47 44 16 -49 19 12 -47 41 18 0.35 - 15 0 0 -48 43 24 7 51 59.6 65 60 18 -49 29 21 -47 57 40 -49 32 19 -47 54 44 0.35 - 14 0 0 -48 56 14 7 52 1.5 65 58 19 -49 42 2 -48 10 38 -49 45 0 -48 7 42 0.35 - 13 0 0 -49 8 36 7 52 3.4 65 56 19 -49 54 17 -48 23 9 -49 57 15 -48 20 13 0.35 - 12 0 0 -49 20 33 7 52 5.3 66 54 20 -50 6 5 -48 35 13 -50 9 2 -48 32 17 0.35 - 11 0 0 -49 32 2 7 52 7.1 66 52 21 -50 17 28 -48 46 50 -50 20 24 -48 43 55 0.36 - 10 0 0 -49 43 6 7 52 9.0 67 50 21 -50 28 24 -48 58 1 -50 31 20 -48 55 7 0.36 - 9 0 0 -49 53 44 7 52 10.9 67 48 22 -50 38 55 -49 8 46 -50 41 51 -49 5 52 0.36 - 8 0 0 -50 3 57 7 52 12.7 67 46 23 -50 49 1 -49 19 5 -50 51 56 -49 16 11 0.36 - 7 0 0 -50 13 43 7 52 14.6 68 44 23 -50 58 41 -49 28 58 -51 1 36 -49 26 5 0.36 - 6 0 0 -50 23 5 7 52 16.5 68 41 24 -51 7 56 -49 38 27 -51 10 51 -49 35 34 0.36 - 5 0 0 -50 32 2 7 52 18.3 68 39 25 -51 16 47 -49 47 29 -51 19 41 -49 44 37 0.36 - 4 0 0 -50 40 34 7 52 20.1 69 37 25 -51 25 13 -49 56 7 -51 28 7 -49 53 15 0.36 - 3 0 0 -50 48 42 7 52 22.0 69 34 26 -51 33 15 -50 4 20 -51 36 8 -50 1 29 0.36 - 2 0 0 -50 56 25 7 52 23.8 69 32 26 -51 40 53 -50 12 9 -51 43 46 -50 9 17 0.36 - 1 0 0 -51 3 43 7 52 25.6 69 30 27 -51 48 6 -50 19 32 -51 50 59 -50 16 41 0.36 0 0 0 -51 10 38 7 52 27.4 70 27 28 -51 54 56 -50 26 32 -51 57 49 -50 23 41 0.36 1 0 0 -51 17 9 7 52 29.2 70 25 28 -52 1 23 -50 33 8 -52 4 15 -50 30 17 0.36 2 0 0 -51 23 16 7 52 31.0 70 22 29 -52 7 26 -50 39 19 -52 10 17 -50 36 29 0.36 3 0 0 -51 29 0 7 52 32.8 70 20 30 -52 13 5 -50 45 7 -52 15 57 -50 42 17 0.36 4 0 0 -51 34 20 7 52 34.6 70 17 30 -52 18 22 -50 50 31 -52 21 13 -50 47 41 0.36 5 0 0 -51 39 17 7 52 36.4 70 15 31 -52 23 15 -50 55 31 -52 26 6 -50 52 42 0.36 6 0 0 -51 43 51 7 52 38.2 70 12 31 -52 27 45 -51 0 8 -52 30 36 -50 57 19 0.36 7 0 0 -51 48 1 7 52 40.0 70 9 32 -52 31 53 -51 4 22 -52 34 43 -51 1 33 0.36 8 0 0 -51 51 49 7 52 41.8 70 7 32 -52 35 38 -51 8 12 -52 38 28 -51 5 23 0.36 9 0 0 -51 55 14 7 52 43.5 70 4 33 -52 39 0 -51 11 39 -52 41 50 -51 8 51 0.36 10 0 0 -51 58 16 7 52 45.3 70 2 34 -52 42 0 -51 14 43 -52 44 50 -51 11 55 0.36 11 0 0 -52 0 55 7 52 47.1 70 359 34 -52 44 37 -51 17 25 -52 47 27 -51 14 36 0.36 12 0 0 -52 3 12 7 52 48.8 70 356 35 -52 46 52 -51 19 43 -52 49 42 -51 16 55 0.36 13 0 0 -52 5 6 7 52 50.6 70 354 35 -52 48 45 -51 21 38 -52 51 35 -51 18 50 0.36 14 0 0 -52 6 38 7 52 52.3 70 351 36 -52 50 16 -51 23 11 -52 53 5 -51 20 23 0.36 15 0 0 -52 7 47 7 52 54.1 70 349 36 -52 51 24 -51 24 21 -52 54 13 -51 21 33 0.36 16 0 0 -52 8 33 7 52 55.8 70 346 37 -52 52 10 -51 25 8 -52 54 59 -51 22 20 0.36 17 0 0 -52 8 57 7 52 57.6 70 344 38 -52 52 34 -51 25 32 -52 55 23 -51 22 44 0.36 18 0 0 -52 8 59 7 52 59.3 69 342 38 -52 52 35 -51 25 34 -52 55 25 -51 22 46 0.36 19 0 0 -52 8 38 7 53 1.1 69 339 39 -52 52 15 -51 25 13 -52 55 4 -51 22 25 0.36 20 0 0 -52 7 55 7 53 2.8 69 337 39 -52 51 32 -51 24 29 -52 54 22 -51 21 41 0.36 21 0 0 -52 6 49 7 53 4.6 69 335 40 -52 50 27 -51 23 23 -52 53 17 -51 20 35 0.36 22 0 0 -52 5 21 7 53 6.3 69 332 40 -52 49 0 -51 21 54 -52 51 50 -51 19 5 0.36 23 0 0 -52 3 30 7 53 8.0 68 330 41 -52 47 11 -51 20 2 -52 50 1 -51 17 13 0.36 24 0 0 -52 1 17 7 53 9.8 68 328 41 -52 44 59 -51 17 47 -52 47 49 -51 14 58 0.36 25 0 0 -51 58 41 7 53 11.5 68 326 42 -52 42 25 -51 15 9 -52 45 15 -51 12 20 0.36 26 0 0 -51 55 43 7 53 13.2 67 324 43 -52 39 29 -51 12 8 -52 42 19 -51 9 20 0.36 27 0 0 -51 52 21 7 53 15.0 67 322 43 -52 36 10 -51 8 44 -52 39 0 -51 5 56 0.36 28 0 0 -51 48 37 7 53 16.7 67 320 44 -52 32 28 -51 4 58 -52 35 19 -51 2 9 0.36 29 0 0 -51 44 30 7 53 18.5 66 318 44 -52 28 24 -51 0 48 -52 31 15 -50 57 58 0.36 30 0 0 -51 40 0 7 53 20.2 66 316 45 -52 23 57 -50 56 14 -52 26 48 -50 53 25 0.36 31 0 0 -51 35 7 7 53 21.9 66 314 45 -52 19 7 -50 51 17 -52 21 59 -50 48 28 0.36 32 0 0 -51 29 50 7 53 23.7 65 312 46 -52 13 55 -50 45 57 -52 16 46 -50 43 7 0.36 33 0 0 -51 24 10 7 53 25.4 65 310 46 -52 8 19 -50 40 13 -52 11 10 -50 37 23 0.36 34 0 0 -51 18 6 7 53 27.1 64 308 47 -52 2 20 -50 34 5 -52 5 11 -50 31 15 0.36 35 0 0 -51 11 39 7 53 28.9 64 306 47 -51 55 57 -50 27 34 -51 58 49 -50 24 43 0.36 36 0 0 -51 4 48 7 53 30.6 63 305 48 -51 49 11 -50 20 38 -51 52 3 -50 17 47 0.36 37 0 0 -50 57 33 7 53 32.3 63 303 48 -51 42 1 -50 13 18 -51 44 54 -50 10 27 0.36 38 0 0 -50 49 54 7 53 34.1 63 301 49 -51 34 27 -50 5 33 -51 37 20 -50 2 42 0.36 39 0 0 -50 41 51 7 53 35.8 62 300 49 -51 26 29 -49 57 24 -51 29 23 -49 54 32 0.36 40 0 0 -50 33 23 7 53 37.5 62 298 50 -51 18 7 -49 48 51 -51 21 1 -49 45 58 0.36 41 0 0 -50 24 30 7 53 39.3 61 297 50 -51 9 20 -49 39 52 -51 12 15 -49 36 59 0.36 42 0 0 -50 15 12 7 53 41.0 61 295 51 -51 0 9 -49 30 28 -51 3 4 -49 27 35 0.36 43 0 0 -50 5 29 7 53 42.8 60 294 52 -50 50 33 -49 20 39 -50 53 28 -49 17 45 0.36 44 0 0 -49 55 21 7 53 44.5 60 292 52 -50 40 31 -49 10 24 -50 43 27 -49 7 30 0.36 45 0 0 -49 44 48 7 53 46.3 59 291 53 -50 30 5 -48 59 43 -50 33 1 -48 56 49 0.36 46 0 0 -49 33 48 7 53 48.0 58 289 53 -50 19 13 -48 48 37 -50 22 9 -48 45 42 0.36 47 0 0 -49 22 23 7 53 49.7 58 288 54 -50 7 55 -48 37 4 -50 10 52 -48 34 9 0.36 48 0 0 -49 10 31 7 53 51.5 57 286 54 -49 56 11 -48 25 5 -49 59 9 -48 22 9 0.36 49 0 0 -48 58 13 7 53 53.2 57 285 55 -49 44 1 -48 12 39 -49 46 59 -48 9 43 0.36 50 0 0 -48 45 29 7 53 55.0 56 284 55 -49 31 24 -47 59 46 -49 34 23 -47 56 49 0.36 51 0 0 -48 32 17 7 53 56.7 56 282 55 -49 18 21 -47 46 26 -49 21 20 -47 43 29 0.36 52 0 0 -48 18 38 7 53 58.5 55 281 56 -49 4 50 -47 32 39 -49 7 50 -47 29 41 0.36 53 0 0 -48 4 31 7 54 0.2 54 280 56 -48 50 53 -47 18 24 -48 53 53 -47 15 25 0.36 54 0 0 -47 49 57 7 54 2.0 54 279 57 -48 36 28 -47 3 41 -48 39 28 -47 0 42 0.36 55 0 0 -47 34 55 7 54 3.7 53 278 57 -48 21 35 -46 48 30 -48 24 36 -46 45 30 0.36 56 0 0 -47 19 25 7 54 5.5 52 276 58 -48 6 14 -46 32 50 -48 9 16 -46 29 50 0.36 57 0 0 -47 3 26 7 54 7.2 52 275 58 -47 50 24 -46 16 42 -47 53 27 -46 13 41 0.36 58 0 0 -46 46 59 7 54 9.0 51 274 59 -47 34 6 -46 0 5 -47 37 10 -45 57 4 0.36 59 0 0 -46 30 2 7 54 10.7 50 273 59 -47 17 20 -45 42 59 -47 20 24 -45 39 57 0.36 60 0 0 -46 12 36 7 54 12.5 50 272 60 -47 0 4 -45 25 23 -47 3 8 -45 22 21 0.36 61 0 0 -45 54 41 7 54 14.2 49 271 60 -46 42 19 -45 7 18 -46 45 24 -45 4 15 0.36 62 0 0 -45 36 16 7 54 15.9 48 270 60 -46 24 4 -44 48 43 -46 27 10 -44 45 39 0.36 63 0 0 -45 17 21 7 54 17.7 48 269 61 -46 5 19 -44 29 38 -46 8 26 -44 26 34 0.36 64 0 0 -44 57 56 7 54 19.4 47 268 61 -45 46 5 -44 10 3 -45 49 12 -44 6 58 0.36 65 0 0 -44 38 1 7 54 21.1 46 267 61 -45 26 20 -43 49 57 -45 29 28 -43 46 52 0.36 66 0 0 -44 17 35 7 54 22.8 45 266 62 -45 6 5 -43 29 21 -45 9 13 -43 26 15 0.36 67 0 0 -43 56 38 7 54 24.6 45 265 62 -44 45 19 -43 8 14 -44 48 28 -43 5 7 0.36 68 0 0 -43 35 11 7 54 26.3 44 264 62 -44 24 2 -42 46 36 -44 27 12 -42 43 28 0.36 69 0 0 -43 13 12 7 54 28.0 43 263 63 -44 2 14 -42 24 27 -44 5 24 -42 21 18 0.36 70 0 0 -42 50 42 7 54 29.7 42 262 63 -43 39 54 -42 1 46 -43 43 6 -41 58 37 0.36 71 0 0 -42 27 41 7 54 31.3 42 261 63 -43 17 4 -41 38 34 -43 20 16 -41 35 24 0.36 72 0 0 -42 4 8 7 54 33.0 41 260 63 -42 53 42 -41 14 51 -42 56 55 -41 11 40 0.36 73 0 0 -41 40 4 7 54 34.7 40 259 63 -42 29 48 -40 50 36 -42 33 2 -40 47 25 0.36 74 0 0 -41 15 28 7 54 36.3 39 258 64 -42 5 23 -40 25 50 -42 8 37 -40 22 38 0.36 75 0 0 -40 50 20 7 54 38.0 38 257 64 -41 40 26 -40 0 32 -41 43 41 -39 57 19 0.36 76 0 0 -40 24 41 7 54 39.6 38 256 64 -41 14 57 -39 34 42 -41 18 13 -39 31 29 0.36 77 0 0 -39 58 30 7 54 41.2 37 256 64 -40 48 57 -39 8 21 -40 52 13 -39 5 7 0.36 78 0 0 -39 31 47 7 54 42.8 36 255 64 -40 22 24 -38 41 28 -40 25 41 -38 38 13 0.36 79 0 0 -39 4 33 7 54 44.4 35 254 64 -39 55 21 -38 14 4 -39 58 38 -38 10 49 0.36 80 0 0 -38 36 48 7 54 45.9 34 253 64 -39 27 45 -37 46 8 -39 31 3 -37 42 52 0.36 81 0 0 -38 8 31 7 54 47.5 33 252 64 -38 59 38 -37 17 42 -39 2 57 -37 14 25 0.36 82 0 0 -37 39 43 7 54 49.0 32 252 64 -38 31 0 -36 48 44 -38 34 20 -36 45 27 0.36 83 0 0 -37 10 24 7 54 50.5 31 251 63 -38 1 51 -36 19 16 -38 5 11 -36 15 58 0.36 84 0 0 -36 40 35 7 54 51.9 30 250 63 -37 32 11 -35 49 17 -37 35 31 -35 45 59 0.37 85 0 0 -36 10 15 7 54 53.4 30 250 63 -37 2 0 -35 18 49 -37 5 21 -35 15 30 0.37 86 0 0 -35 39 25 7 54 54.8 29 249 63 -36 31 19 -34 47 50 -36 34 41 -34 44 31 0.37 87 0 0 -35 8 6 7 54 56.1 28 248 62 -36 0 8 -34 16 22 -36 3 31 -34 13 2 0.37 88 0 0 -34 36 17 7 54 57.5 27 247 62 -35 28 28 -33 44 26 -35 31 51 -33 41 5 0.37 89 0 0 -34 4 0 7 54 58.8 26 247 62 -34 56 19 -33 12 1 -34 59 43 -33 8 40 0.37 90 0 0 -33 31 15 7 55 0.1 25 246 61 -34 23 41 -32 39 8 -34 27 5 -32 35 46 0.37 91 0 0 -32 58 2 7 55 1.3 24 246 61 -33 50 36 -32 5 48 -33 54 0 -32 2 26 0.37 92 0 0 -32 24 22 7 55 2.5 23 245 60 -33 17 3 -31 32 1 -33 20 28 -31 28 39 0.37 93 0 0 -31 50 16 7 55 3.7 22 244 60 -32 43 4 -30 57 49 -32 46 29 -30 54 26 0.37 94 0 0 -31 15 44 7 55 4.8 21 244 59 -32 8 38 -30 23 11 -32 12 4 -30 19 48 0.37 95 0 0 -30 40 48 7 55 5.9 20 243 59 -31 33 48 -29 48 9 -31 37 14 -29 44 45 0.37 96 0 0 -30 5 28 7 55 6.9 19 243 58 -30 58 33 -29 12 43 -31 1 59 -29 9 19 0.38 97 0 0 -29 29 44 7 55 7.9 18 242 57 -30 22 54 -28 36 55 -30 26 21 -28 33 31 0.38 98 0 0 -28 53 39 7 55 8.9 16 242 57 -29 46 53 -28 0 45 -29 50 21 -27 57 20 0.38 99 0 0 -28 17 12 7 55 9.8 15 241 56 -29 10 31 -27 24 14 -29 13 58 -27 20 49 0.38 100 0 0 -27 40 25 7 55 10.6 14 241 55 -28 33 47 -26 47 24 -28 37 15 -26 43 59 0.38 101 0 0 -27 3 19 7 55 11.4 13 240 55 -27 56 44 -26 10 15 -28 0 12 -26 6 49 0.39 102 0 0 -26 25 55 7 55 12.1 12 240 54 -27 19 23 -25 32 48 -27 22 51 -25 29 23 0.39 103 0 0 -25 48 14 7 55 12.8 11 239 53 -26 41 44 -24 55 5 -26 45 12 -24 51 39 0.39 104 0 0 -25 10 17 7 55 13.4 10 239 52 -26 3 49 -24 17 6 -26 7 17 -24 13 41 0.40 105 0 0 -24 32 6 7 55 13.9 9 238 51 -25 25 39 -23 38 54 -25 29 8 -23 35 28 0.40 106 0 0 -23 53 41 7 55 14.4 8 238 50 -24 47 15 -23 0 29 -24 50 44 -22 57 3 0.41 107 0 0 -23 15 5 7 55 14.8 7 238 50 -24 8 39 -22 21 52 -24 12 7 -22 18 26 0.42 108 0 0 -22 36 18 7 55 15.2 6 237 49 -23 29 52 -21 43 5 -23 33 20 -21 39 40 0.43 109 0 0 -21 57 21 7 55 15.5 4 237 48 -22 50 54 -21 4 10 -22 54 23 -21 0 44 0.45 110 0 0 -21 18 17 7 55 15.7 3 236 47 -22 11 48 -20 25 6 -22 15 17 -20 21 41 0.48 111 0 0 -20 39 6 7 55 15.9 2 236 46 -21 32 35 -19 45 57 -21 36 4 -19 42 31 0.54 112 0 0 -19 59 49 7 55 16.0 1 236 45 -20 53 17 -19 6 43 -20 56 45 -19 3 17 0.76 113 0 0 .. .. .... .. .. .. .. .. .. -20 13 54 .. .. .. -20 17 22 .. .. .. .... Uncertainty in time = +/- 1 secs Prediction of 2022 Dec 13.0 Data for the target star ------------------------ * name: TYC 7380-00962-1 * constellation : Scorpius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 34 39.3991 DE: -32 25 23.371 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 34 39.3991 DE: -32 25 23.371 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (54) Alexandra asteroid class: approx. diameter [km]: 152 approx. diameter ["]: 0.075 distance from Earth [AU]: 2.81100 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#192 date of fit: 2022 Nov 25 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", 0.001", 85.007° remarks: * orbital elements for (54)Alexandra : Mean anomaly = 322.7512285946 deg Arg. of pericenter = 345.2637717519 deg Long. of node = 313.2325265501 deg Inclination = 11.7963841266 deg Eccentricity = 0.1968191110 Semimajor axis = 2.7110331916 AU Perihelion dist = 2.1774500489 AU Mag: H = 7.87, G = 0.15 Epoch of elements : MJD 59980.32826389 TDT (2023 Feb 05.3283) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1922022Nov25,3.87,2023,2,5,7.878603,-0.021192,-0.329666,22.130086,-1.456565,-0.004474,-0.000378,-0.000001,0.000000 10.6447,-32.4380,65.30,-15.97,False TYC 7380-00962-1,17.57761079,-32.4231588,0.00,9.94,0.00,0.0,0,,17.60226801,-32.4379552,3.07,0.00,0,0,0 54,Alexandra,12.95,152.1,2.8110,0,0,5.470,-4.55,,7.6,0 0,322.6787,2023,2,5,345.2638,313.2325,11.7964,0.19682,2.71103,2.17745,7.88,5.0,0.15 1.032,0.0150,0.0008,85,0.0024,Known errors,-1.00,-1,-1,-1 20230205_0962-1,59926.02 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Dec 13, 00:24 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org