IOTA/IOTA-ES occultation update for (2131) Mayall / UCAC4 366-129092 event on 2024 Sep 17, 16:26 UT Visible from Summary ------- On 2024 Sep 17 UT, the 8.52657758823898 km diameter asteroid (2131) Mayall will occult a 11.6 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.09 mag to 15.65 mag (the magnitude of the asteroid) for at most 0.590 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 Sep 17, 16:18 - 2024 Sep 17, 16:33 * geocentric midpoint of event [JD]: 2460571.18482492 * magnitude of target star: 11.59 * magnitude drop [mag]: 4.09 * estimated maximum duration [s]: 0.590 * Moon: 100 % sunlit, 73° distance * Sun: 102° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 9 * 1 sigma uncertainty interval [path widths]: +/- 0.43 * 1 sigma uncertainty interval [seconds]: +/- 1.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.016, +/- 0.019) * 1 sigma uncertainty ellipse (major, minor, PA): (0.025", 0.004", 39°) * approx speed of asteroid's shadow [km/s]: 14.5248 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 366-129092 by 2131 Mayall on 2024 Sep 17 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 - 82 0 0 -58 16 29 16 18 54.9 1 122 29 -58 19 16 -58 13 43 -58 21 38 -58 11 21 .... - 81 0 0 -58 36 11 16 18 55.0 1 121 28 -58 38 57 -58 33 26 -58 41 18 -58 31 5 0.21 - 80 0 0 -58 55 8 16 18 55.1 2 121 28 -58 57 52 -58 52 24 -59 0 12 -58 50 4 0.19 - 79 0 0 -59 13 21 16 18 55.3 2 120 28 -59 16 3 -59 10 38 -59 18 22 -59 8 19 0.18 - 78 0 0 -59 30 51 16 18 55.5 3 119 28 -59 33 32 -59 28 9 -59 35 49 -59 25 52 0.17 - 77 0 0 -59 47 39 16 18 55.8 4 118 28 -59 50 19 -59 44 59 -59 52 36 -59 42 42 0.17 - 76 0 0 -60 3 47 16 18 56.1 4 117 28 -60 6 26 -60 1 8 -60 8 42 -59 58 53 0.16 - 75 0 0 -60 19 17 16 18 56.4 5 116 28 -60 21 54 -60 16 39 -60 24 9 -60 14 24 0.16 - 74 0 0 -60 34 8 16 18 56.8 5 115 27 -60 36 44 -60 31 31 -60 38 58 -60 29 17 0.16 - 73 0 0 -60 48 22 16 18 57.2 6 115 27 -60 50 57 -60 45 46 -60 53 10 -60 43 33 0.16 - 72 0 0 -61 2 0 16 18 57.7 6 114 27 -61 4 34 -60 59 25 -61 6 46 -60 57 13 0.15 - 71 0 0 -61 15 3 16 18 58.2 7 113 27 -61 17 36 -61 12 29 -61 19 47 -61 10 18 0.15 - 70 0 0 -61 27 31 16 18 58.7 7 112 27 -61 30 4 -61 24 58 -61 32 14 -61 22 48 0.15 - 69 0 0 -61 39 26 16 18 59.2 8 111 27 -61 41 58 -61 36 55 -61 44 8 -61 34 45 0.15 - 68 0 0 -61 50 49 16 18 59.8 8 110 26 -61 53 20 -61 48 18 -61 55 29 -61 46 9 0.15 - 67 0 0 -62 1 40 16 19 0.4 9 109 26 -62 4 10 -61 59 10 -62 6 18 -61 57 2 0.15 - 66 0 0 -62 11 59 16 19 1.0 9 108 26 -62 14 29 -62 9 30 -62 16 36 -62 7 23 0.15 - 65 0 0 -62 21 49 16 19 1.6 10 107 26 -62 24 17 -62 19 20 -62 26 24 -62 17 13 0.15 - 64 0 0 -62 31 8 16 19 2.3 10 107 26 -62 33 36 -62 28 40 -62 35 42 -62 26 34 0.15 - 63 0 0 -62 39 58 16 19 3.0 11 106 25 -62 42 25 -62 37 31 -62 44 31 -62 35 25 0.15 - 62 0 0 -62 48 20 16 19 3.7 11 105 25 -62 50 46 -62 45 53 -62 52 51 -62 43 48 0.14 - 61 0 0 -62 56 13 16 19 4.5 12 104 25 -62 58 39 -62 53 47 -63 0 43 -62 51 43 0.14 - 60 0 0 -63 3 39 16 19 5.2 12 103 25 -63 6 4 -63 1 14 -63 8 8 -62 59 10 0.14 - 59 0 0 -63 10 38 16 19 6.0 13 102 25 -63 13 3 -63 8 13 -63 15 6 -63 6 10 0.14 - 58 0 0 -63 17 10 16 19 6.9 13 101 25 -63 19 34 -63 14 46 -63 21 37 -63 12 43 0.14 - 57 0 0 -63 23 16 16 19 7.7 14 100 24 -63 25 40 -63 20 52 -63 27 42 -63 18 49 0.14 - 56 0 0 -63 28 56 16 19 8.6 14 99 24 -63 31 19 -63 26 33 -63 33 21 -63 24 30 0.14 - 55 0 0 -63 34 10 16 19 9.4 15 99 24 -63 36 33 -63 31 47 -63 38 35 -63 29 46 0.14 - 54 0 0 -63 39 0 16 19 10.3 15 98 24 -63 41 22 -63 36 37 -63 43 24 -63 34 36 0.14 - 53 0 0 -63 43 24 16 19 11.3 16 97 24 -63 45 47 -63 41 2 -63 47 48 -63 39 1 0.14 - 52 0 0 -63 47 24 16 19 12.2 16 96 24 -63 49 46 -63 45 2 -63 51 47 -63 43 2 0.14 - 51 0 0 -63 51 0 16 19 13.2 16 95 23 -63 53 21 -63 48 38 -63 55 22 -63 46 38 0.14 - 50 0 0 -63 54 11 16 19 14.2 17 94 23 -63 56 33 -63 51 50 -63 58 33 -63 49 50 0.14 - 49 0 0 -63 56 59 16 19 15.2 17 93 23 -63 59 20 -63 54 38 -64 1 20 -63 52 37 0.14 - 48 0 0 -63 59 23 16 19 16.2 18 92 23 -64 1 44 -63 57 2 -64 3 44 -63 55 2 0.14 - 47 0 0 -64 1 23 16 19 17.3 18 91 23 -64 3 43 -63 59 2 -64 5 43 -63 57 2 0.14 - 46 0 0 -64 2 59 16 19 18.4 19 90 22 -64 5 20 -64 0 39 -64 7 20 -63 58 39 0.14 - 45 0 0 -64 4 13 16 19 19.5 19 89 22 -64 6 33 -64 1 52 -64 8 33 -63 59 52 0.14 - 44 0 0 -64 5 2 16 19 20.6 20 89 22 -64 7 23 -64 2 42 -64 9 23 -64 0 42 0.14 - 43 0 0 -64 5 29 16 19 21.8 20 88 22 -64 7 49 -64 3 9 -64 9 49 -64 1 9 0.14 - 42 0 0 -64 5 32 16 19 23.0 20 87 22 -64 7 53 -64 3 12 -64 9 52 -64 1 12 0.14 - 41 0 0 -64 5 12 16 19 24.2 21 86 22 -64 7 33 -64 2 52 -64 9 32 -64 0 52 0.14 - 40 0 0 -64 4 29 16 19 25.4 21 85 21 -64 6 49 -64 2 9 -64 8 49 -64 0 9 0.14 - 39 0 0 -64 3 22 16 19 26.6 22 84 21 -64 5 43 -64 1 2 -64 7 43 -63 59 2 0.13 - 38 0 0 -64 1 52 16 19 27.9 22 83 21 -64 4 13 -63 59 32 -64 6 13 -63 57 32 0.13 - 37 0 0 -63 59 59 16 19 29.2 23 82 21 -64 2 19 -63 57 38 -64 4 19 -63 55 38 0.13 - 36 0 0 -63 57 41 16 19 30.6 23 81 21 -64 0 2 -63 55 20 -64 2 3 -63 53 20 0.13 - 35 0 0 -63 55 0 16 19 31.9 23 80 20 -63 57 21 -63 52 39 -63 59 22 -63 50 39 0.13 - 34 0 0 -63 51 55 16 19 33.3 24 79 20 -63 54 17 -63 49 34 -63 56 17 -63 47 33 0.13 - 33 0 0 -63 48 26 16 19 34.7 24 79 20 -63 50 48 -63 46 4 -63 52 48 -63 44 3 0.13 - 32 0 0 -63 44 32 16 19 36.2 25 78 20 -63 46 54 -63 42 10 -63 48 55 -63 40 9 0.13 - 31 0 0 -63 40 14 16 19 37.7 25 77 19 -63 42 36 -63 37 51 -63 44 37 -63 35 50 0.13 - 30 0 0 -63 35 30 16 19 39.2 26 76 19 -63 37 53 -63 33 7 -63 39 55 -63 31 6 0.13 - 29 0 0 -63 30 21 16 19 40.8 26 75 19 -63 32 45 -63 27 58 -63 34 47 -63 25 56 0.13 - 28 0 0 -63 24 47 16 19 42.3 27 74 19 -63 27 11 -63 22 24 -63 29 13 -63 20 21 0.13 - 27 0 0 -63 18 47 16 19 44.0 27 73 19 -63 21 11 -63 16 23 -63 23 14 -63 14 20 0.13 - 26 0 0 -63 12 20 16 19 45.6 28 72 18 -63 14 45 -63 9 56 -63 16 48 -63 7 52 0.13 - 25 0 0 -63 5 26 16 19 47.3 28 71 18 -63 7 52 -63 3 1 -63 9 55 -63 0 58 0.13 - 24 0 0 -62 58 6 16 19 49.1 29 70 18 -63 0 31 -62 55 40 -63 2 35 -62 53 36 0.13 - 23 0 0 -62 50 17 16 19 50.9 29 69 18 -62 52 43 -62 47 51 -62 54 48 -62 45 46 0.13 - 22 0 0 -62 42 0 16 19 52.7 29 69 17 -62 44 27 -62 39 33 -62 46 32 -62 37 28 0.13 - 21 0 0 -62 33 14 16 19 54.6 30 68 17 -62 35 42 -62 30 46 -62 37 47 -62 28 41 0.13 - 20 0 0 -62 23 59 16 19 56.5 30 67 17 -62 26 27 -62 21 30 -62 28 33 -62 19 24 0.13 - 19 0 0 -62 14 13 16 19 58.4 31 66 17 -62 16 42 -62 11 44 -62 18 49 -62 9 37 0.13 - 18 0 0 -62 3 57 16 20 0.5 31 65 16 -62 6 26 -62 1 27 -62 8 34 -61 59 19 0.13 - 17 0 0 -61 53 9 16 20 2.5 32 64 16 -61 55 39 -61 50 38 -61 57 48 -61 48 29 0.13 - 16 0 0 -61 41 48 16 20 4.6 32 63 16 -61 44 20 -61 39 17 -61 46 29 -61 37 8 0.13 - 15 0 0 -61 29 55 16 20 6.8 33 62 16 -61 32 27 -61 27 22 -61 34 37 -61 25 12 0.13 - 14 0 0 -61 17 27 16 20 9.1 34 61 15 -61 20 1 -61 14 54 -61 22 12 -61 12 43 0.13 - 13 0 0 -61 4 25 16 20 11.4 34 60 15 -61 7 0 -61 1 51 -61 9 11 -60 59 39 0.13 - 12 0 0 -60 50 47 16 20 13.7 35 59 15 -60 53 22 -60 48 12 -60 55 35 -60 45 59 0.13 - 11 0 0 -60 36 32 16 20 16.2 35 58 14 -60 39 9 -60 33 55 -60 41 22 -60 31 42 0.13 - 10 0 0 -60 21 39 16 20 18.7 36 58 14 -60 24 17 -60 19 1 -60 26 31 -60 16 47 0.13 - 9 0 0 -60 6 7 16 20 21.2 36 57 14 -60 8 46 -60 3 28 -60 11 2 -60 1 13 0.13 - 8 0 0 -59 49 55 16 20 23.9 37 56 14 -59 52 35 -59 47 15 -59 54 52 -59 44 59 0.13 - 7 0 0 -59 33 2 16 20 26.6 37 55 13 -59 35 43 -59 30 21 -59 38 1 -59 28 3 0.13 - 6 0 0 -59 15 26 16 20 29.4 38 54 13 -59 18 8 -59 12 43 -59 20 27 -59 10 25 0.13 - 5 0 0 -58 57 6 16 20 32.3 39 53 13 -58 59 50 -58 54 22 -59 2 9 -58 52 2 0.13 - 4 0 0 -58 38 0 16 20 35.3 39 52 12 -58 40 45 -58 35 15 -58 43 6 -58 32 54 0.13 - 3 0 0 -58 18 7 16 20 38.4 40 51 12 -58 20 54 -58 15 21 -58 23 16 -58 12 58 0.13 - 2 0 0 -57 57 26 16 20 41.6 40 50 12 -58 0 15 -57 54 38 -58 2 38 -57 52 15 0.13 - 1 0 0 -57 35 55 16 20 44.9 41 49 11 -57 38 45 -57 33 5 -57 41 10 -57 30 40 0.13 0 0 0 -57 13 32 16 20 48.3 42 48 11 -57 16 24 -57 10 41 -57 18 50 -57 8 14 0.13 1 0 0 -56 50 15 16 20 51.8 42 47 10 -56 53 9 -56 47 22 -56 55 36 -56 44 55 0.13 2 0 0 -56 26 3 16 20 55.4 43 47 10 -56 28 58 -56 23 8 -56 31 27 -56 20 39 0.13 3 0 0 -56 0 53 16 20 59.1 44 46 10 -56 3 50 -55 57 57 -56 6 21 -55 55 26 0.13 4 0 0 -55 34 44 16 21 3.0 45 45 9 -55 37 43 -55 31 46 -55 40 15 -55 29 14 0.13 5 0 0 -55 7 34 16 21 7.0 45 44 9 -55 10 34 -55 4 33 -55 13 8 -55 1 59 0.13 6 0 0 -54 39 19 16 21 11.2 46 43 8 -54 42 21 -54 36 17 -54 44 57 -54 33 41 0.13 7 0 0 -54 9 58 16 21 15.5 47 42 8 -54 13 2 -54 6 54 -54 15 40 -54 4 17 0.13 8 0 0 -53 39 29 16 21 20.0 48 41 7 -53 42 35 -53 36 22 -53 45 14 -53 33 44 0.13 9 0 0 -53 7 48 16 21 24.6 48 40 7 -53 10 57 -53 4 40 -53 13 38 -53 1 59 0.13 10 0 0 -52 34 54 16 21 29.4 49 39 6 -52 38 5 -52 31 44 -52 40 48 -52 29 1 0.13 11 0 0 -52 0 44 16 21 34.4 50 38 6 -52 3 57 -51 57 31 -52 6 42 -51 54 47 0.13 12 0 0 -51 25 15 16 21 39.6 51 37 5 -51 28 30 -51 22 0 -51 31 17 -51 19 13 0.13 13 0 0 -50 48 24 16 21 44.9 52 36 5 -50 51 41 -50 45 6 -50 54 30 -50 42 18 0.13 14 0 0 -50 10 8 16 21 50.5 53 35 4 -50 13 28 -50 6 48 -50 16 18 -50 3 58 0.13 15 0 0 -49 30 25 16 21 56.3 54 34 4 -49 33 47 -49 27 2 -49 36 39 -49 24 10 0.13 16 0 0 -48 49 10 16 22 2.3 54 33 3 -48 52 35 -48 45 45 -48 55 30 -48 42 51 0.13 17 0 0 -48 6 22 16 22 8.5 55 32 3 -48 9 50 -48 2 55 -48 12 47 -47 59 58 0.13 18 0 0 -47 21 57 16 22 15.0 56 31 2 -47 25 27 -47 18 27 -47 28 26 -47 15 28 0.13 19 0 0 -46 35 52 16 22 21.8 57 30 1 -46 39 25 -46 32 19 -46 42 26 -46 29 18 0.13 20 0 0 -45 48 4 16 22 28.8 58 29 1 -45 51 39 -45 44 28 -45 54 43 -45 41 25 0.13 21 0 0 -44 58 29 16 22 36.1 60 27 0 -45 2 7 -44 54 51 -45 5 13 -44 51 45 0.13 22 0 0 -44 7 5 16 22 43.7 61 26 -1 -44 10 45 -44 3 24 -44 13 54 -44 0 15 0.13 23 0 0 -43 13 48 16 22 51.5 62 25 -1 -43 17 32 -43 10 4 -43 20 42 -43 6 53 0.13 24 0 0 -42 18 36 16 22 59.7 63 24 -2 -42 22 22 -42 14 49 -42 25 35 -42 11 36 0.13 25 0 0 -41 21 25 16 23 8.2 64 22 -3 -41 25 15 -41 17 36 -41 28 30 -41 14 21 0.13 26 0 0 -40 22 15 16 23 17.0 65 21 -4 -40 26 7 -40 18 22 -40 29 25 -40 15 4 0.13 27 0 0 -39 21 1 16 23 26.1 67 19 -5 -39 24 56 -39 17 6 -39 28 16 -39 13 45 0.13 28 0 0 -38 17 42 16 23 35.6 68 18 -5 -38 21 40 -38 13 44 -38 25 2 -38 10 21 0.13 29 0 0 -37 12 16 16 23 45.4 69 16 -6 -37 16 17 -37 8 15 -37 19 42 -37 4 50 0.13 30 0 0 -36 4 42 16 23 55.6 70 14 -7 -36 8 46 -36 0 39 -36 12 13 -35 57 11 0.13 31 0 0 -34 55 0 16 24 6.1 72 11 -8 -34 59 6 -34 50 54 -35 2 36 -34 47 24 0.13 32 0 0 -33 43 8 16 24 17.0 73 9 -9 -33 47 17 -33 38 59 -33 50 49 -33 35 27 0.13 33 0 0 -32 29 8 16 24 28.2 74 6 -10 -32 33 20 -32 24 57 -32 36 54 -32 21 22 0.13 34 0 0 -31 13 0 16 24 39.7 76 2 -11 -31 17 14 -31 8 46 -31 20 51 -31 5 10 0.13 35 0 0 -29 54 46 16 24 51.6 77 358 -12 -29 59 3 -29 50 30 -30 2 41 -29 46 52 0.13 36 0 0 -28 34 29 16 25 3.9 78 353 -13 -28 38 48 -28 30 11 -28 42 28 -28 26 31 0.14 37 0 0 -27 12 13 16 25 16.4 79 346 -14 -27 16 33 -27 7 52 -27 20 15 -27 4 10 0.14 38 0 0 -25 48 0 16 25 29.2 80 338 -15 -25 52 23 -25 43 38 -25 56 7 -25 39 54 0.14 39 0 0 -24 21 58 16 25 42.4 81 328 -16 -24 26 22 -24 17 33 -24 30 7 -24 13 48 0.14 40 0 0 -22 54 11 16 25 55.7 82 316 -17 -22 58 37 -22 49 45 -23 2 24 -22 45 59 0.14 41 0 0 -21 24 47 16 26 9.4 82 303 -18 -21 29 15 -21 20 20 -21 33 3 -21 16 33 0.14 42 0 0 -19 53 55 16 26 23.2 82 290 -19 -19 58 24 -19 49 27 -20 2 12 -19 45 38 0.14 43 0 0 -18 21 43 16 26 37.2 81 278 -21 -18 26 12 -18 17 14 -18 30 2 -18 13 24 0.14 44 0 0 -16 48 21 16 26 51.3 80 267 -22 -16 52 51 -16 43 51 -16 56 41 -16 40 1 0.14 45 0 0 -15 13 59 16 27 5.5 79 259 -23 -15 18 29 -15 9 29 -15 22 20 -15 5 39 0.14 46 0 0 -13 38 49 16 27 19.7 78 252 -24 -13 43 19 -13 34 18 -13 47 10 -13 30 28 0.14 47 0 0 -12 3 1 16 27 34.0 76 247 -25 -12 7 31 -11 58 31 -12 11 22 -11 54 41 0.14 48 0 0 -10 26 49 16 27 48.3 75 243 -26 -10 31 19 -10 22 19 -10 35 9 -10 18 29 0.14 49 0 0 - 8 50 23 16 28 2.4 73 240 -27 - 8 54 53 - 8 45 54 - 8 58 42 - 8 42 5 0.15 50 0 0 - 7 13 57 16 28 16.5 71 237 -29 - 7 18 26 - 7 9 29 - 7 22 14 - 7 5 41 0.15 51 0 0 - 5 37 43 16 28 30.4 70 235 -30 - 5 42 10 - 5 33 15 - 5 45 57 - 5 29 28 0.15 52 0 0 - 4 1 51 16 28 44.2 68 233 -31 - 4 6 17 - 3 57 25 - 4 10 3 - 3 53 39 0.15 53 0 0 - 2 26 33 16 28 57.7 66 232 -32 - 2 30 58 - 2 22 9 - 2 34 43 - 2 18 24 0.15 54 0 0 - 0 52 2 16 29 10.9 64 231 -33 - 0 56 24 - 0 47 39 - 1 0 8 - 0 43 56 0.15 55 0 0 0 41 35 16 29 23.8 62 229 -34 0 37 14 0 45 55 0 33 32 0 49 37 0.15 56 0 0 2 14 6 16 29 36.5 61 229 -35 2 9 47 2 18 24 2 6 7 2 22 4 0.15 57 0 0 3 45 22 16 29 48.7 59 228 -36 3 41 6 3 49 38 3 37 28 3 53 16 0.15 58 0 0 5 15 17 16 30 0.7 57 227 -37 5 11 4 5 19 31 5 7 28 5 23 7 0.15 59 0 0 6 43 43 16 30 12.2 55 227 -37 6 39 32 6 47 54 6 35 58 6 51 28 0.16 60 0 0 8 10 33 16 30 23.3 53 227 -38 8 6 25 8 14 42 8 2 53 8 18 13 0.16 61 0 0 9 35 43 16 30 34.1 52 226 -39 9 31 37 9 39 48 9 28 7 9 43 18 0.16 62 0 0 10 59 6 16 30 44.4 50 226 -40 10 55 3 11 3 9 10 51 36 11 6 36 0.16 63 0 0 12 20 41 16 30 54.3 48 226 -40 12 16 41 12 24 41 12 13 16 12 28 6 0.16 64 0 0 13 40 23 16 31 3.8 47 226 -41 13 36 26 13 44 20 13 33 3 13 47 42 0.16 65 0 0 14 58 11 16 31 12.9 45 226 -42 14 54 16 15 2 5 14 50 56 15 5 25 0.16 66 0 0 16 14 2 16 31 21.5 44 226 -42 16 10 10 16 17 53 16 6 53 16 21 10 0.16 67 0 0 17 27 55 16 31 29.8 42 226 -43 17 24 6 17 31 44 17 20 52 17 34 59 0.16 68 0 0 18 39 51 16 31 37.6 40 226 -43 18 36 5 18 43 37 18 32 52 18 46 49 0.16 69 0 0 19 49 48 16 31 45.1 39 227 -44 19 46 5 19 53 31 19 42 55 19 56 41 0.16 70 0 0 20 57 48 16 31 52.2 37 227 -44 20 54 8 21 1 28 20 51 0 21 4 36 0.16 71 0 0 22 3 51 16 31 58.9 36 227 -45 22 0 14 22 7 28 21 57 8 22 10 33 0.16 72 0 0 23 7 58 16 32 5.3 35 227 -45 23 4 23 23 11 33 23 1 21 23 14 35 0.16 73 0 0 24 10 11 16 32 11.3 33 228 -45 24 6 39 24 13 43 24 3 38 24 16 43 0.16 74 0 0 25 10 30 16 32 16.9 32 228 -46 25 7 1 25 14 0 25 4 3 25 16 58 0.16 75 0 0 26 8 59 16 32 22.3 30 228 -46 26 5 32 26 12 26 26 2 36 26 15 22 0.16 76 0 0 27 5 39 16 32 27.3 29 229 -46 27 2 15 27 9 3 26 59 21 27 11 57 0.16 77 0 0 28 0 31 16 32 32.0 28 229 -46 27 57 10 28 3 53 27 54 18 28 6 45 0.16 78 0 0 28 53 39 16 32 36.5 27 230 -46 28 50 20 28 56 58 28 47 31 28 59 48 0.16 79 0 0 29 45 5 16 32 40.6 25 230 -46 29 41 48 29 48 22 29 39 1 29 51 9 0.16 80 0 0 30 34 51 16 32 44.5 24 231 -47 30 31 36 30 38 5 30 28 50 30 40 51 0.16 81 0 0 31 22 58 16 32 48.2 23 231 -47 31 19 46 31 26 11 31 17 3 31 28 54 0.16 82 0 0 32 9 31 16 32 51.6 22 232 -47 32 6 21 32 12 41 32 3 39 32 15 23 0.16 83 0 0 32 54 31 16 32 54.8 21 232 -47 32 51 23 32 57 38 32 48 43 33 0 18 0.16 84 0 0 33 38 0 16 32 57.7 20 233 -47 33 34 54 33 41 6 33 32 16 33 43 44 0.17 85 0 0 34 20 1 16 33 0.5 19 233 -47 34 16 58 34 23 5 34 14 21 34 25 41 0.17 86 0 0 35 0 37 16 33 3.0 17 234 -47 34 57 35 35 3 38 34 55 0 35 6 13 0.17 87 0 0 35 39 49 16 33 5.4 16 234 -47 35 36 49 35 42 49 35 34 16 35 45 22 0.17 88 0 0 36 17 40 16 33 7.5 15 235 -47 36 14 42 36 20 38 36 12 10 36 23 9 0.17 89 0 0 36 54 12 16 33 9.5 14 236 -47 36 51 16 36 57 8 36 48 46 36 59 38 0.17 90 0 0 37 29 27 16 33 11.4 13 236 -46 37 26 33 37 32 22 37 24 4 37 34 50 0.17 91 0 0 38 3 28 16 33 13.0 12 237 -46 38 0 35 38 6 21 37 58 8 38 8 48 0.17 92 0 0 38 36 16 16 33 14.6 11 237 -46 38 33 25 38 39 8 38 31 0 38 41 33 0.17 93 0 0 39 7 54 16 33 15.9 10 238 -46 39 5 5 39 10 44 39 2 40 39 13 8 0.17 94 0 0 39 38 23 16 33 17.2 10 239 -46 39 35 35 39 41 11 39 33 12 39 43 34 0.17 95 0 0 40 7 46 16 33 18.3 9 239 -46 40 4 59 40 10 32 40 2 37 40 12 54 0.17 96 0 0 40 36 3 16 33 19.3 8 240 -46 40 33 18 40 38 48 40 30 57 40 41 9 0.17 97 0 0 41 3 17 16 33 20.1 7 241 -46 41 0 34 41 6 1 40 58 14 41 8 21 0.18 98 0 0 41 29 30 16 33 20.9 6 241 -45 41 26 48 41 32 12 41 24 29 41 34 31 0.18 99 0 0 41 54 43 16 33 21.5 5 242 -45 41 52 2 41 57 24 41 49 45 41 59 41 0.18 100 0 0 42 18 57 16 33 22.0 4 243 -45 42 16 18 42 21 37 42 14 1 42 23 53 0.19 101 0 0 42 42 15 16 33 22.5 3 243 -45 42 39 36 42 44 54 42 37 21 42 47 9 0.20 102 0 0 43 4 37 16 33 22.8 3 244 -45 43 2 0 43 7 15 42 59 45 43 9 29 0.21 103 0 0 43 26 5 16 33 23.0 2 245 -44 43 23 29 43 28 42 43 21 16 43 30 55 0.24 104 0 0 43 46 41 16 33 23.2 1 245 -44 43 44 5 43 49 16 43 41 53 43 51 29 0.30 105 0 0 44 6 25 16 33 23.2 0 246 -44 44 3 50 44 8 59 44 1 39 44 11 11 0.85 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 366-129092 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 29 46.7723 DE: -16 55 26.713 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 29 46.7723 DE: -16 55 26.713 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.6 * B mag [mag]: 12.9 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2131) Mayall asteroid class: asteroid system: multiple bodies approx. diameter [km]: 9 approx. diameter ["]: 0.010 distance from Earth [AU]: 1.17780 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#47 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): 0.025", 0.004", 39.394° remarks: * orbital elements for (2131)Mayall : Mean anomaly = 335.3691985991 deg Arg. of pericenter = 38.5262350247 deg Long. of node = 306.0132819256 deg Inclination = 33.9866224213 deg Eccentricity = 0.1109468648 Semimajor axis = 1.8872811368 AU Perihelion dist = 1.6778932116 AU Mag: H = 12.69, G = 0.15 Epoch of elements : MJD 60570.68482475 TDT (2024 Sep 17.6848) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#472023Apr24,0.59,2024,9,17,16.435798,0.110132,-0.079069,4.775968,6.663393,0.004592,0.000141,0.000000,0.000000 34.1712,-16.9079,-67.97,1.88,False UCAC4 366-129092,18.49632568,-16.9240869,12.89,11.59,10.89,0.1,0,,18.52024428,-16.9078661,4.08,4.33,0,0,0 2131,Mayall,15.65,8.612,1.1778,0,1,2.485,49.74,,0.4,0 ,2.5,18,0.978300,0.2000,,,,, 0,335.1089,2024,9,17,38.5262,306.0133,33.9866,0.11095,1.88728,1.67789,12.69,5.0,0.15 1.426,0.0247,0.0040,39,0.0043,Known errors,0.73,0,-1,-1 20240917_129092,60140.57 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 13:39 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org