IOTA/IOTA-ES occultation update for (2731) Cucula / UCAC4 476-008621 event on 2024 Dec 14, 02:47 UT Visible from Summary ------- On 2024 Dec 14 UT, the 47.8719195814682 km diameter asteroid (2731) Cucula will occult a 11.7 mag star in the constellation Orion for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.80 mag to 16.48 mag (the magnitude of the asteroid) for at most 3.120 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 Dec 14, 02:40 - 2024 Dec 14, 02:53 * geocentric midpoint of event [JD]: 2460658.61597396 * magnitude of target star: 11.69 * magnitude drop [mag]: 4.80 * estimated maximum duration [s]: 3.120 * Moon: 97 % sunlit, 24° distance * Sun: 160° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 51 * 1 sigma uncertainty interval [path widths]: +/- 0.31 * 1 sigma uncertainty interval [seconds]: +/- 2.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.020, +/- 0.008) * 1 sigma uncertainty ellipse (major, minor, PA): (0.020", 0.007", 84°) * approx speed of asteroid's shadow [km/s]: 15.7922 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 476-008621 by 2731 Cucula on 2024 Dec 14 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 -141 0 0 -12 22 40 2 53 31.6 0 85 11 -12 8 49 -12 36 32 -12 0 8 -12 45 15 .... -140 0 0 -12 17 16 2 53 31.5 1 84 10 -12 3 25 -12 31 8 -11 54 44 -12 39 51 0.13 -139 0 0 -12 11 54 2 53 31.3 2 84 9 -11 58 4 -12 25 46 -11 49 22 -12 34 29 0.18 -138 0 0 -12 6 35 2 53 30.9 3 84 8 -11 52 44 -12 20 27 -11 44 3 -12 29 10 0.21 -137 0 0 -12 1 18 2 53 30.5 4 84 7 -11 47 28 -12 15 10 -11 38 46 -12 23 53 0.22 -136 0 0 -11 56 4 2 53 29.9 5 84 6 -11 42 14 -12 9 56 -11 33 32 -12 18 39 0.23 -135 0 0 -11 50 53 2 53 29.2 6 83 5 -11 37 3 -12 4 44 -11 28 21 -12 13 28 0.23 -134 0 0 -11 45 45 2 53 28.4 7 83 4 -11 31 54 -11 59 36 -11 23 12 -12 8 19 0.23 -133 0 0 -11 40 39 2 53 27.4 8 83 3 -11 26 49 -11 54 30 -11 18 7 -12 3 13 0.24 -132 0 0 -11 35 37 2 53 26.4 9 83 2 -11 21 46 -11 49 28 -11 13 5 -11 58 11 0.24 -131 0 0 -11 30 37 2 53 25.2 10 83 1 -11 16 47 -11 44 28 -11 8 5 -11 53 11 0.24 -130 0 0 -11 25 41 2 53 23.9 11 82 0 -11 11 51 -11 39 32 -11 3 9 -11 48 15 0.24 -129 0 0 -11 20 48 2 53 22.4 12 82 -1 -11 6 58 -11 34 39 -10 58 17 -11 43 22 0.24 -128 0 0 -11 15 59 2 53 20.9 13 82 -2 -11 2 9 -11 29 50 -10 53 27 -11 38 32 0.24 -127 0 0 -11 11 13 2 53 19.2 14 82 -3 -10 57 23 -11 25 4 -10 48 41 -11 33 46 0.24 -126 0 0 -11 6 30 2 53 17.5 15 82 -3 -10 52 40 -11 20 21 -10 43 59 -11 29 4 0.25 -125 0 0 -11 1 51 2 53 15.6 16 81 -4 -10 48 2 -11 15 42 -10 39 20 -11 24 25 0.25 -124 0 0 -10 57 16 2 53 13.6 17 81 -5 -10 43 27 -11 11 7 -10 34 45 -11 19 50 0.25 -123 0 0 -10 52 45 2 53 11.4 18 81 -6 -10 38 55 -11 6 36 -10 30 14 -11 15 18 0.25 -122 0 0 -10 48 18 2 53 9.2 19 81 -7 -10 34 28 -11 2 8 -10 25 47 -11 10 50 0.25 -121 0 0 -10 43 54 2 53 6.9 20 81 -8 -10 30 4 -10 57 44 -10 21 23 -11 6 27 0.25 -120 0 0 -10 39 35 2 53 4.4 21 80 -9 -10 25 45 -10 53 25 -10 17 4 -11 2 7 0.25 -119 0 0 -10 35 19 2 53 1.8 22 80 -10 -10 21 30 -10 49 9 -10 12 49 -10 57 52 0.25 -118 0 0 -10 31 8 2 52 59.1 23 80 -11 -10 17 19 -10 44 58 -10 8 38 -10 53 40 0.25 -117 0 0 -10 27 1 2 52 56.3 24 80 -12 -10 13 12 -10 40 51 -10 4 31 -10 49 33 0.25 -116 0 0 -10 22 58 2 52 53.4 25 79 -13 -10 9 9 -10 36 48 -10 0 28 -10 45 31 0.25 -115 0 0 -10 19 0 2 52 50.4 26 79 -13 -10 5 11 -10 32 50 - 9 56 30 -10 41 32 0.25 -114 0 0 -10 15 6 2 52 47.3 27 79 -14 -10 1 17 -10 28 56 - 9 52 36 -10 37 38 0.25 -113 0 0 -10 11 17 2 52 44.1 28 79 -15 - 9 57 28 -10 25 7 - 9 48 47 -10 33 49 0.25 -112 0 0 -10 7 32 2 52 40.8 29 78 -16 - 9 53 43 -10 21 22 - 9 45 3 -10 30 4 0.25 -111 0 0 -10 3 52 2 52 37.3 29 78 -17 - 9 50 3 -10 17 42 - 9 41 23 -10 26 24 0.25 -110 0 0 -10 0 16 2 52 33.8 30 78 -18 - 9 46 28 -10 14 6 - 9 37 47 -10 22 48 0.25 -109 0 0 - 9 56 46 2 52 30.2 31 78 -19 - 9 42 57 -10 10 35 - 9 34 17 -10 19 17 0.25 -108 0 0 - 9 53 20 2 52 26.4 32 77 -20 - 9 39 31 -10 7 9 - 9 30 51 -10 15 51 0.25 -107 0 0 - 9 49 59 2 52 22.6 33 77 -20 - 9 36 10 -10 3 48 - 9 27 30 -10 12 30 0.25 -106 0 0 - 9 46 43 2 52 18.7 34 77 -21 - 9 32 54 -10 0 32 - 9 24 14 -10 9 14 0.25 -105 0 0 - 9 43 32 2 52 14.7 35 77 -22 - 9 29 43 - 9 57 21 - 9 21 3 -10 6 2 0.25 -104 0 0 - 9 40 25 2 52 10.5 36 76 -23 - 9 26 37 - 9 54 15 - 9 17 57 -10 2 56 0.25 -103 0 0 - 9 37 24 2 52 6.3 37 76 -24 - 9 23 36 - 9 51 13 - 9 14 56 - 9 59 55 0.25 -102 0 0 - 9 34 28 2 52 2.0 38 76 -25 - 9 20 40 - 9 48 17 - 9 12 0 - 9 56 59 0.25 -101 0 0 - 9 31 38 2 51 57.6 39 75 -26 - 9 17 50 - 9 45 27 - 9 9 10 - 9 54 8 0.25 -100 0 0 - 9 28 52 2 51 53.1 40 75 -27 - 9 15 4 - 9 42 41 - 9 6 24 - 9 51 22 0.25 - 99 0 0 - 9 26 12 2 51 48.6 41 75 -27 - 9 12 24 - 9 40 1 - 9 3 44 - 9 48 42 0.25 - 98 0 0 - 9 23 37 2 51 43.9 42 74 -28 - 9 9 49 - 9 37 25 - 9 1 9 - 9 46 7 0.25 - 97 0 0 - 9 21 7 2 51 39.2 43 74 -29 - 9 7 19 - 9 34 56 - 8 58 39 - 9 43 37 0.25 - 96 0 0 - 9 18 43 2 51 34.3 44 74 -30 - 9 4 55 - 9 32 31 - 8 56 15 - 9 41 13 0.25 - 95 0 0 - 9 16 24 2 51 29.4 45 73 -31 - 9 2 36 - 9 30 12 - 8 53 56 - 9 38 54 0.25 - 94 0 0 - 9 14 10 2 51 24.4 46 73 -31 - 9 0 23 - 9 27 59 - 8 51 43 - 9 36 40 0.25 - 93 0 0 - 9 12 2 2 51 19.4 47 72 -32 - 8 58 15 - 9 25 51 - 8 49 35 - 9 34 32 0.25 - 92 0 0 - 9 10 0 2 51 14.2 48 72 -33 - 8 56 12 - 9 23 48 - 8 47 32 - 9 32 29 0.25 - 91 0 0 - 9 8 3 2 51 9.0 48 72 -34 - 8 54 15 - 9 21 51 - 8 45 35 - 9 30 32 0.25 - 90 0 0 - 9 6 11 2 51 3.7 49 71 -35 - 8 52 24 - 9 20 0 - 8 43 44 - 9 28 41 0.25 - 89 0 0 - 9 4 25 2 50 58.3 50 71 -35 - 8 50 38 - 9 18 14 - 8 41 58 - 9 26 55 0.25 - 88 0 0 - 9 2 45 2 50 52.9 51 70 -36 - 8 48 58 - 9 16 33 - 8 40 18 - 9 25 15 0.25 - 87 0 0 - 9 1 11 2 50 47.4 52 69 -37 - 8 47 23 - 9 14 59 - 8 38 44 - 9 23 40 0.25 - 86 0 0 - 8 59 42 2 50 41.8 53 69 -38 - 8 45 55 - 9 13 30 - 8 37 15 - 9 22 11 0.25 - 85 0 0 - 8 58 19 2 50 36.2 54 68 -39 - 8 44 31 - 9 12 7 - 8 35 52 - 9 20 48 0.25 - 84 0 0 - 8 57 1 2 50 30.5 55 68 -39 - 8 43 14 - 9 10 49 - 8 34 34 - 9 19 30 0.25 - 83 0 0 - 8 55 49 2 50 24.7 56 67 -40 - 8 42 2 - 9 9 37 - 8 33 22 - 9 18 18 0.25 - 82 0 0 - 8 54 43 2 50 18.9 57 66 -41 - 8 40 56 - 9 8 31 - 8 32 16 - 9 17 12 0.25 - 81 0 0 - 8 53 43 2 50 13.0 58 66 -42 - 8 39 56 - 9 7 31 - 8 31 16 - 9 16 12 0.25 - 80 0 0 - 8 52 48 2 50 7.1 58 65 -42 - 8 39 1 - 9 6 36 - 8 30 22 - 9 15 17 0.25 - 79 0 0 - 8 51 59 2 50 1.1 59 64 -43 - 8 38 12 - 9 5 47 - 8 29 33 - 9 14 28 0.25 - 78 0 0 - 8 51 16 2 49 55.0 60 63 -44 - 8 37 29 - 9 5 4 - 8 28 50 - 9 13 45 0.25 - 77 0 0 - 8 50 39 2 49 48.9 61 62 -44 - 8 36 52 - 9 4 27 - 8 28 13 - 9 13 8 0.25 - 76 0 0 - 8 50 8 2 49 42.8 62 61 -45 - 8 36 21 - 9 3 56 - 8 27 41 - 9 12 36 0.25 - 75 0 0 - 8 49 42 2 49 36.6 63 60 -46 - 8 35 55 - 9 3 30 - 8 27 16 - 9 12 11 0.25 - 74 0 0 - 8 49 22 2 49 30.3 64 59 -46 - 8 35 35 - 9 3 10 - 8 26 56 - 9 11 51 0.25 - 73 0 0 - 8 49 8 2 49 24.1 64 58 -47 - 8 35 21 - 9 2 56 - 8 26 42 - 9 11 37 0.25 - 72 0 0 - 8 49 0 2 49 17.7 65 57 -48 - 8 35 13 - 9 2 48 - 8 26 34 - 9 11 29 0.25 - 71 0 0 - 8 48 58 2 49 11.4 66 55 -48 - 8 35 11 - 9 2 46 - 8 26 31 - 9 11 26 0.25 - 70 0 0 - 8 49 1 2 49 4.9 67 54 -49 - 8 35 14 - 9 2 49 - 8 26 35 - 9 11 30 0.25 - 69 0 0 - 8 49 11 2 48 58.5 68 52 -49 - 8 35 24 - 9 2 58 - 8 26 44 - 9 11 39 0.25 - 68 0 0 - 8 49 26 2 48 52.0 68 51 -50 - 8 35 39 - 9 3 13 - 8 26 59 - 9 11 54 0.25 - 67 0 0 - 8 49 47 2 48 45.5 69 49 -51 - 8 36 0 - 9 3 34 - 8 27 20 - 9 12 15 0.25 - 66 0 0 - 8 50 13 2 48 39.0 70 47 -51 - 8 36 26 - 9 4 1 - 8 27 47 - 9 12 42 0.25 - 65 0 0 - 8 50 46 2 48 32.4 70 45 -52 - 8 36 59 - 9 4 33 - 8 28 19 - 9 13 14 0.25 - 64 0 0 - 8 51 24 2 48 25.8 71 43 -52 - 8 37 37 - 9 5 12 - 8 28 57 - 9 13 53 0.25 - 63 0 0 - 8 52 8 2 48 19.2 72 41 -53 - 8 38 21 - 9 5 56 - 8 29 41 - 9 14 36 0.25 - 62 0 0 - 8 52 58 2 48 12.5 72 38 -53 - 8 39 11 - 9 6 45 - 8 30 31 - 9 15 26 0.25 - 61 0 0 - 8 53 53 2 48 5.9 73 36 -54 - 8 40 6 - 9 7 41 - 8 31 26 - 9 16 22 0.25 - 60 0 0 - 8 54 54 2 47 59.2 73 33 -54 - 8 41 7 - 9 8 42 - 8 32 27 - 9 17 23 0.25 - 59 0 0 - 8 56 1 2 47 52.5 74 30 -54 - 8 42 14 - 9 9 49 - 8 33 34 - 9 18 30 0.25 - 58 0 0 - 8 57 13 2 47 45.8 74 27 -55 - 8 43 26 - 9 11 1 - 8 34 47 - 9 19 42 0.25 - 57 0 0 - 8 58 31 2 47 39.0 75 23 -55 - 8 44 44 - 9 12 19 - 8 36 5 - 9 21 0 0.25 - 56 0 0 - 8 59 55 2 47 32.3 75 20 -55 - 8 46 8 - 9 13 43 - 8 37 28 - 9 22 24 0.25 - 55 0 0 - 9 1 25 2 47 25.6 75 16 -56 - 8 47 37 - 9 15 13 - 8 38 58 - 9 23 54 0.25 - 54 0 0 - 9 2 59 2 47 18.8 76 13 -56 - 8 49 12 - 9 16 47 - 8 40 33 - 9 25 29 0.25 - 53 0 0 - 9 4 40 2 47 12.0 76 9 -56 - 8 50 53 - 9 18 28 - 8 42 13 - 9 27 9 0.25 - 52 0 0 - 9 6 26 2 47 5.3 76 5 -57 - 8 52 38 - 9 20 14 - 8 43 59 - 9 28 55 0.25 - 51 0 0 - 9 8 17 2 46 58.5 76 1 -57 - 8 54 30 - 9 22 5 - 8 45 50 - 9 30 46 0.25 - 50 0 0 - 9 10 14 2 46 51.7 76 357 -57 - 8 56 27 - 9 24 2 - 8 47 47 - 9 32 43 0.25 - 49 0 0 - 9 12 16 2 46 45.0 76 353 -57 - 8 58 29 - 9 26 5 - 8 49 49 - 9 34 46 0.25 - 48 0 0 - 9 14 24 2 46 38.2 75 349 -57 - 9 0 37 - 9 28 12 - 8 51 57 - 9 36 54 0.25 - 47 0 0 - 9 16 37 2 46 31.5 75 346 -57 - 9 2 50 - 9 30 25 - 8 54 10 - 9 39 7 0.25 - 46 0 0 - 9 18 55 2 46 24.7 75 342 -57 - 9 5 8 - 9 32 44 - 8 56 28 - 9 41 25 0.25 - 45 0 0 - 9 21 19 2 46 18.0 75 339 -57 - 9 7 31 - 9 35 7 - 8 58 51 - 9 43 49 0.25 - 44 0 0 - 9 23 48 2 46 11.3 74 335 -57 - 9 10 0 - 9 37 36 - 9 1 20 - 9 46 18 0.25 - 43 0 0 - 9 26 22 2 46 4.6 74 332 -57 - 9 12 34 - 9 40 10 - 9 3 54 - 9 48 52 0.25 - 42 0 0 - 9 29 1 2 45 57.9 73 329 -57 - 9 15 13 - 9 42 50 - 9 6 33 - 9 51 31 0.25 - 41 0 0 - 9 31 45 2 45 51.2 73 327 -57 - 9 17 57 - 9 45 34 - 9 9 17 - 9 54 15 0.25 - 40 0 0 - 9 34 35 2 45 44.5 72 324 -57 - 9 20 47 - 9 48 23 - 9 12 6 - 9 57 5 0.25 - 39 0 0 - 9 37 29 2 45 37.9 71 322 -57 - 9 23 41 - 9 51 18 - 9 15 1 - 9 59 59 0.25 - 38 0 0 - 9 40 28 2 45 31.3 71 320 -57 - 9 26 40 - 9 54 17 - 9 18 0 -10 2 59 0.25 - 37 0 0 - 9 43 32 2 45 24.7 70 317 -57 - 9 29 44 - 9 57 21 - 9 21 4 -10 6 3 0.25 - 36 0 0 - 9 46 41 2 45 18.2 69 315 -56 - 9 32 53 -10 0 30 - 9 24 13 -10 9 12 0.25 - 35 0 0 - 9 49 55 2 45 11.7 69 314 -56 - 9 36 7 -10 3 44 - 9 27 27 -10 12 26 0.25 - 34 0 0 - 9 53 14 2 45 5.2 68 312 -56 - 9 39 25 -10 7 3 - 9 30 45 -10 15 45 0.25 - 33 0 0 - 9 56 37 2 44 58.7 67 310 -56 - 9 42 49 -10 10 26 - 9 34 8 -10 19 8 0.25 - 32 0 0 -10 0 5 2 44 52.3 66 309 -55 - 9 46 17 -10 13 54 - 9 37 36 -10 22 36 0.25 - 31 0 0 -10 3 38 2 44 45.9 66 307 -55 - 9 49 49 -10 17 27 - 9 41 9 -10 26 9 0.25 - 30 0 0 -10 7 15 2 44 39.6 65 306 -55 - 9 53 26 -10 21 4 - 9 44 46 -10 29 46 0.25 - 29 0 0 -10 10 56 2 44 33.3 64 305 -54 - 9 57 7 -10 24 46 - 9 48 27 -10 33 28 0.25 - 28 0 0 -10 14 42 2 44 27.0 63 304 -54 -10 0 53 -10 28 32 - 9 52 13 -10 37 14 0.25 - 27 0 0 -10 18 32 2 44 20.8 62 303 -53 -10 4 44 -10 32 22 - 9 56 3 -10 41 4 0.26 - 26 0 0 -10 22 27 2 44 14.7 61 302 -53 -10 8 38 -10 36 17 - 9 59 57 -10 44 59 0.26 - 25 0 0 -10 26 26 2 44 8.6 61 301 -52 -10 12 37 -10 40 15 -10 3 56 -10 48 58 0.26 - 24 0 0 -10 30 28 2 44 2.5 60 300 -52 -10 16 39 -10 44 18 -10 7 59 -10 53 1 0.26 - 23 0 0 -10 34 35 2 43 56.5 59 299 -51 -10 20 46 -10 48 25 -10 12 5 -10 57 8 0.26 - 22 0 0 -10 38 46 2 43 50.5 58 298 -51 -10 24 57 -10 52 36 -10 16 16 -11 1 19 0.26 - 21 0 0 -10 43 1 2 43 44.6 57 297 -50 -10 29 12 -10 56 51 -10 20 31 -11 5 34 0.26 - 20 0 0 -10 47 20 2 43 38.8 56 297 -50 -10 33 31 -11 1 10 -10 24 50 -11 9 52 0.26 - 19 0 0 -10 51 43 2 43 33.0 55 296 -49 -10 37 53 -11 5 33 -10 29 12 -11 14 15 0.26 - 18 0 0 -10 56 9 2 43 27.3 54 295 -48 -10 42 19 -11 9 59 -10 33 38 -11 18 42 0.26 - 17 0 0 -11 0 39 2 43 21.6 54 295 -48 -10 46 49 -11 14 29 -10 38 8 -11 23 12 0.26 - 16 0 0 -11 5 12 2 43 16.1 53 294 -47 -10 51 22 -11 19 3 -10 42 41 -11 27 45 0.26 - 15 0 0 -11 9 49 2 43 10.5 52 293 -47 -10 55 59 -11 23 40 -10 47 18 -11 32 22 0.26 - 14 0 0 -11 14 29 2 43 5.1 51 293 -46 -11 0 40 -11 28 20 -10 51 58 -11 37 3 0.26 - 13 0 0 -11 19 13 2 42 59.7 50 292 -45 -11 5 23 -11 33 4 -10 56 42 -11 41 46 0.26 - 12 0 0 -11 24 0 2 42 54.4 49 292 -45 -11 10 10 -11 37 51 -11 1 29 -11 46 33 0.26 - 11 0 0 -11 28 50 2 42 49.1 48 291 -44 -11 15 0 -11 42 41 -11 6 19 -11 51 24 0.26 - 10 0 0 -11 33 43 2 42 44.0 47 291 -43 -11 19 53 -11 47 34 -11 11 12 -11 56 17 0.26 - 9 0 0 -11 38 40 2 42 38.9 46 290 -43 -11 24 49 -11 52 30 -11 16 8 -12 1 13 0.26 - 8 0 0 -11 43 39 2 42 33.9 45 290 -42 -11 29 48 -11 57 30 -11 21 7 -12 6 12 0.26 - 7 0 0 -11 48 41 2 42 28.9 44 289 -41 -11 34 50 -12 2 32 -11 26 9 -12 11 15 0.26 - 6 0 0 -11 53 45 2 42 24.1 43 289 -40 -11 39 55 -12 7 36 -11 31 13 -12 16 19 0.26 - 5 0 0 -11 58 53 2 42 19.3 42 288 -40 -11 45 2 -12 12 44 -11 36 21 -12 21 27 0.26 - 4 0 0 -12 4 2 2 42 14.6 42 288 -39 -11 50 12 -12 17 54 -11 41 30 -12 26 37 0.26 - 3 0 0 -12 9 15 2 42 10.0 41 288 -38 -11 55 24 -12 23 6 -11 46 43 -12 31 49 0.26 - 2 0 0 -12 14 30 2 42 5.5 40 287 -37 -12 0 39 -12 28 21 -11 51 57 -12 37 4 0.26 - 1 0 0 -12 19 47 2 42 1.1 39 287 -37 -12 5 56 -12 33 38 -11 57 14 -12 42 21 0.26 0 0 0 -12 25 6 2 41 56.7 38 287 -36 -12 11 15 -12 38 57 -12 2 34 -12 47 41 0.26 1 0 0 -12 30 27 2 41 52.5 37 286 -35 -12 16 37 -12 44 19 -12 7 55 -12 53 2 0.26 2 0 0 -12 35 51 2 41 48.4 36 286 -34 -12 22 0 -12 49 42 -12 13 18 -12 58 25 0.26 3 0 0 -12 41 16 2 41 44.3 35 286 -33 -12 27 25 -12 55 8 -12 18 43 -13 3 51 0.26 4 0 0 -12 46 43 2 41 40.3 34 285 -33 -12 32 52 -13 0 35 -12 24 10 -13 9 18 0.26 5 0 0 -12 52 12 2 41 36.5 33 285 -32 -12 38 21 -13 6 4 -12 29 39 -13 14 47 0.26 6 0 0 -12 57 42 2 41 32.7 32 285 -31 -12 43 52 -13 11 34 -12 35 10 -13 20 18 0.26 7 0 0 -13 3 15 2 41 29.0 31 284 -30 -12 49 24 -13 17 6 -12 40 42 -13 25 50 0.26 8 0 0 -13 8 48 2 41 25.4 30 284 -29 -12 54 57 -13 22 40 -12 46 15 -13 31 23 0.26 9 0 0 -13 14 23 2 41 22.0 29 284 -29 -13 0 32 -13 28 15 -12 51 50 -13 36 58 0.26 10 0 0 -13 19 59 2 41 18.6 28 283 -28 -13 6 8 -13 33 51 -12 57 26 -13 42 34 0.26 11 0 0 -13 25 36 2 41 15.3 27 283 -27 -13 11 45 -13 39 28 -13 3 3 -13 48 11 0.26 12 0 0 -13 31 14 2 41 12.2 26 283 -26 -13 17 23 -13 45 6 -13 8 41 -13 53 50 0.26 13 0 0 -13 36 53 2 41 9.1 25 282 -25 -13 23 2 -13 50 45 -13 14 20 -13 59 29 0.26 14 0 0 -13 42 34 2 41 6.2 24 282 -24 -13 28 42 -13 56 26 -13 20 0 -14 5 9 0.26 15 0 0 -13 48 14 2 41 3.3 23 282 -23 -13 34 23 -14 2 6 -13 25 41 -14 10 50 0.26 16 0 0 -13 53 56 2 41 0.6 23 282 -23 -13 40 5 -14 7 48 -13 31 22 -14 16 31 0.26 17 0 0 -13 59 38 2 40 57.9 22 281 -22 -13 45 46 -14 13 30 -13 37 4 -14 22 13 0.26 18 0 0 -14 5 20 2 40 55.4 21 281 -21 -13 51 29 -14 19 12 -13 42 47 -14 27 56 0.26 19 0 0 -14 11 3 2 40 53.0 20 281 -20 -13 57 12 -14 24 55 -13 48 29 -14 33 38 0.26 20 0 0 -14 16 46 2 40 50.7 19 281 -19 -14 2 54 -14 30 38 -13 54 12 -14 39 21 0.26 21 0 0 -14 22 29 2 40 48.5 18 280 -18 -14 8 38 -14 36 21 -13 59 55 -14 45 4 0.26 22 0 0 -14 28 12 2 40 46.4 17 280 -17 -14 14 21 -14 42 4 -14 5 39 -14 50 48 0.26 23 0 0 -14 33 55 2 40 44.5 16 280 -17 -14 20 4 -14 47 47 -14 11 22 -14 56 31 0.26 24 0 0 -14 39 38 2 40 42.6 15 279 -16 -14 25 46 -14 53 30 -14 17 4 -15 2 13 0.26 25 0 0 -14 45 20 2 40 40.9 14 279 -15 -14 31 29 -14 59 12 -14 22 47 -15 7 56 0.26 26 0 0 -14 51 2 2 40 39.3 13 279 -14 -14 37 11 -15 4 54 -14 28 29 -15 13 38 0.26 27 0 0 -14 56 44 2 40 37.7 12 279 -13 -14 42 53 -15 10 36 -14 34 11 -15 19 20 0.26 28 0 0 -15 2 25 2 40 36.4 11 278 -12 -14 48 34 -15 16 17 -14 39 52 -15 25 1 0.26 29 0 0 -15 8 5 2 40 35.1 10 278 -11 -14 54 14 -15 21 57 -14 45 32 -15 30 41 0.26 30 0 0 -15 13 45 2 40 33.9 9 278 -10 -14 59 54 -15 27 37 -14 51 12 -15 36 20 0.27 31 0 0 -15 19 23 2 40 32.9 8 278 -9 -15 5 32 -15 33 15 -14 56 50 -15 41 59 0.27 32 0 0 -15 25 1 2 40 31.9 7 277 -9 -15 11 10 -15 38 53 -15 2 28 -15 47 36 0.27 33 0 0 -15 30 37 2 40 31.1 6 277 -8 -15 16 46 -15 44 29 -15 8 4 -15 53 13 0.27 34 0 0 -15 36 13 2 40 30.4 5 277 -7 -15 22 21 -15 50 4 -15 13 39 -15 58 48 0.27 35 0 0 -15 41 46 2 40 29.9 4 277 -6 -15 27 55 -15 55 38 -15 19 13 -16 4 22 0.28 36 0 0 -15 47 19 2 40 29.4 3 276 -5 -15 33 28 -16 1 11 -15 24 46 -16 9 54 0.28 37 0 0 -15 52 50 2 40 29.1 2 276 -4 -15 38 59 -16 6 42 -15 30 17 -16 15 25 0.29 38 0 0 -15 58 19 2 40 28.9 1 276 -3 -15 44 28 -16 12 11 -15 35 46 -16 20 54 0.32 39 0 0 -16 3 47 2 40 28.8 0 275 -2 -15 49 56 -16 17 38 -15 41 14 -16 26 21 0.50 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 476-008621 * constellation : Orion * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 04 55 36.0557 DE: +05 05 55.963 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 04 55 36.0557 DE: +05 05 55.963 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.500,0.300) * V mag [mag]: 11.7 * B mag [mag]: 14.0 * Diameter [mas]: 0.70 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2731) Cucula asteroid class: approx. diameter [km]: 48 approx. diameter ["]: 0.024 distance from Earth [AU]: 2.74790 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#59 date of fit: 2023 Apr 27 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): 0.020", 0.007", 84.159° remarks: * orbital elements for (2731)Cucula : Mean anomaly = 137.6872054567 deg Arg. of pericenter = 134.9977864776 deg Long. of node = 150.2213559977 deg Inclination = 13.3356469338 deg Eccentricity = 0.1897201090 Semimajor axis = 3.1987728894 AU Perihelion dist = 2.5919013482 AU Mag: H = 11.02, G = 0.15 Epoch of elements : MJD 60658.11597354 TDT (2024 Dec 14.1160) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#592023Apr27,3.12,2024,12,14,2.783375,-0.007906,-0.245451,-8.908940,0.286564,0.000759,0.001886,0.000001,0.000000 -50.7853,5.1396,136.93,-23.23,False UCAC4 476-008621,4.92668213,5.0988788,14.00,11.69,10.44,0.7,4,,4.94914753,5.1395992,4.80,5.59,0,0,0 2731,Cucula,16.48,49.267,2.7479,0,0,-1.908,0.92,,2.6,0 0,137.6672,2024,12,14,134.9978,150.2214,13.3356,0.18972,3.19877,2.59190,11.02,5.0,0.15 1.314,0.0203,0.0073,84,0.0078,Known errors,1.05,0,-1,-1 20241214_008621,60140.74 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:44 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org