IOTA/IOTA-ES occultation update for (618) Elfriede / UCAC4 523-054769 event on 2023 Jul 18, 09:58 UT Visible from E Australia Summary ------- On 2023 Jul 18 UT, the 127.8 km diameter asteroid (618) Elfriede will occult a 12.2 mag star in the constellation Coma Berenices for observers along a path across E Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.54 mag to 14.67 mag (the magnitude of the asteroid) for at most 4.510 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: 2023 Jul 18, 09:54 - 2023 Jul 18, 10:01 * geocentric midpoint of event [JD]: 2460143.91536755 * magnitude of target star: 12.24 * magnitude drop [mag]: 2.54 * estimated maximum duration [s]: 4.510 * Moon: 1 % sunlit, 56° distance * Sun: 65° distance * rough path description: E Australia Additional comments ------------------- RUWE high The occultation path -------------------- * approximate projected width [km]: 128 * 1 sigma uncertainty interval [path widths]: +/- 0.11 * 1 sigma uncertainty interval [seconds]: +/- 1.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.016", 0.002", 108°) * approx speed of asteroid's shadow [km/s]: 28.3218 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 523-054769 by 618 Elfriede on 2023 Jul 18 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 2 0 0 34 34 44 9 54 22.5 0 73 60 33 58 33 35 10 54 33 50 38 35 18 50 .... 3 0 0 34 49 47 9 54 22.6 1 73 60 34 13 43 35 25 51 34 5 49 35 33 45 -0.07 4 0 0 35 4 15 9 54 22.7 2 74 61 34 28 17 35 40 13 34 20 25 35 48 5 -0.04 5 0 0 35 18 9 9 54 22.9 3 75 62 34 42 17 35 54 1 34 34 26 36 1 52 -0.03 6 0 0 35 31 29 9 54 23.1 4 75 62 34 55 43 36 7 15 34 47 53 36 15 5 -0.03 7 0 0 35 44 15 9 54 23.3 5 76 63 35 8 35 36 19 55 35 0 47 36 27 44 -0.02 8 0 0 35 56 28 9 54 23.6 6 76 64 35 20 54 36 32 2 35 13 6 36 39 50 -0.02 9 0 0 36 8 7 9 54 24.0 6 77 64 35 32 38 36 43 37 35 24 52 36 51 23 -0.02 10 0 0 36 19 14 9 54 24.4 7 77 65 35 43 50 36 54 38 35 36 4 37 2 23 -0.01 11 0 0 36 29 47 9 54 24.8 8 78 65 35 54 28 37 5 6 35 46 43 37 12 51 -0.01 12 0 0 36 39 48 9 54 25.3 9 79 66 36 4 33 37 15 2 35 56 50 37 22 46 -0.01 13 0 0 36 49 16 9 54 25.8 10 79 66 36 14 5 37 24 26 36 6 23 37 32 8 -0.01 14 0 0 36 58 12 9 54 26.4 11 80 67 36 23 5 37 33 18 36 15 24 37 40 59 -0.01 15 0 0 37 6 35 9 54 27.0 11 80 68 36 31 33 37 41 38 36 23 52 37 49 18 -0.01 16 0 0 37 14 27 9 54 27.6 12 81 68 36 39 28 37 49 26 36 31 49 37 57 5 -0.01 17 0 0 37 21 47 9 54 28.3 13 82 69 36 46 52 37 56 42 36 39 13 38 4 21 -0.01 18 0 0 37 28 35 9 54 29.1 14 82 69 36 53 43 38 3 27 36 46 5 38 11 6 -0.01 19 0 0 37 34 52 9 54 29.8 15 83 69 37 0 3 38 9 41 36 52 25 38 17 19 -0.01 20 0 0 37 40 37 9 54 30.6 15 83 70 37 5 51 38 15 24 36 58 14 38 23 1 -0.01 21 0 0 37 45 51 9 54 31.5 16 84 70 37 11 7 38 20 35 37 3 31 38 28 12 -0.01 22 0 0 37 50 34 9 54 32.4 17 85 71 37 15 52 38 25 16 37 8 16 38 32 52 0.00 23 0 0 37 54 46 9 54 33.3 18 85 71 37 20 6 38 29 25 37 12 30 38 37 1 0.00 24 0 0 37 58 26 9 54 34.3 19 86 71 37 23 48 38 33 4 37 16 13 38 40 39 0.00 25 0 0 38 1 36 9 54 35.3 19 87 72 37 27 0 38 36 13 37 19 25 38 43 47 0.00 26 0 0 38 4 15 9 54 36.4 20 87 72 37 29 40 38 38 50 37 22 5 38 46 25 0.00 27 0 0 38 6 23 9 54 37.5 21 88 72 37 31 49 38 40 57 37 24 14 38 48 31 0.00 28 0 0 38 8 0 9 54 38.6 22 88 72 37 33 27 38 42 34 37 25 53 38 50 8 0.00 29 0 0 38 9 7 9 54 39.8 23 89 72 37 34 34 38 43 39 37 27 0 38 51 13 0.00 30 0 0 38 9 42 9 54 41.0 23 90 73 37 35 10 38 44 15 37 27 36 38 51 49 0.00 31 0 0 38 9 47 9 54 42.2 24 90 73 37 35 15 38 44 20 37 27 41 38 51 54 0.00 32 0 0 38 9 21 9 54 43.5 25 91 73 37 34 49 38 43 54 37 27 14 38 51 28 0.00 33 0 0 38 8 25 9 54 44.9 26 91 73 37 33 51 38 42 58 37 26 17 38 50 32 0.00 34 0 0 38 6 57 9 54 46.2 26 92 73 37 32 23 38 41 31 37 24 49 38 49 5 0.00 35 0 0 38 4 59 9 54 47.7 27 93 73 37 30 24 38 39 33 37 22 49 38 47 8 0.00 36 0 0 38 2 29 9 54 49.1 28 93 73 37 27 53 38 37 5 37 20 18 38 44 40 0.00 37 0 0 37 59 29 9 54 50.6 29 94 73 37 24 51 38 34 6 37 17 16 38 41 41 0.00 38 0 0 37 55 57 9 54 52.1 30 95 72 37 21 18 38 30 36 37 13 42 38 38 12 0.00 39 0 0 37 51 54 9 54 53.7 30 95 72 37 17 13 38 26 35 37 9 37 38 34 11 0.00 40 0 0 37 47 20 9 54 55.3 31 96 72 37 12 37 38 22 3 37 5 1 38 29 40 0.00 41 0 0 37 42 15 9 54 57.0 32 96 72 37 7 29 38 17 0 36 59 52 38 24 37 0.00 42 0 0 37 36 38 9 54 58.7 33 97 72 37 1 49 38 11 26 36 54 12 38 19 3 0.00 43 0 0 37 30 29 9 55 0.4 34 98 71 36 55 37 38 5 20 36 47 59 38 12 58 0.00 44 0 0 37 23 48 9 55 2.2 34 98 71 36 48 53 37 58 42 36 41 14 38 6 21 0.00 45 0 0 37 16 35 9 55 4.0 35 99 71 36 41 37 37 51 33 36 33 57 37 59 12 0.00 46 0 0 37 8 50 9 55 5.9 36 99 70 36 33 48 37 43 51 36 26 8 37 51 32 0.00 47 0 0 37 0 32 9 55 7.8 37 100 70 36 25 27 37 35 38 36 17 46 37 43 19 0.00 48 0 0 36 51 42 9 55 9.7 38 101 69 36 16 33 37 26 52 36 8 50 37 34 34 0.00 49 0 0 36 42 19 9 55 11.7 39 101 69 36 7 5 37 17 33 35 59 22 37 25 16 0.00 50 0 0 36 32 23 9 55 13.8 39 102 68 35 57 4 37 7 42 35 49 20 37 15 26 0.00 51 0 0 36 21 54 9 55 15.9 40 102 68 35 46 30 36 57 17 35 38 45 37 5 2 0.00 52 0 0 36 10 51 9 55 18.0 41 103 67 35 35 22 36 46 19 35 27 36 36 54 6 0.00 53 0 0 35 59 14 9 55 20.2 42 104 67 35 23 40 36 34 48 35 15 52 36 42 35 0.00 54 0 0 35 47 3 9 55 22.4 43 104 66 35 11 23 36 22 43 35 3 35 36 30 31 0.00 55 0 0 35 34 18 9 55 24.7 44 105 66 34 58 32 36 10 3 34 50 42 36 17 53 0.00 56 0 0 35 20 58 9 55 27.0 44 105 65 34 45 6 35 56 50 34 37 15 36 4 41 0.00 57 0 0 35 7 3 9 55 29.4 45 106 64 34 31 5 35 43 1 34 23 13 35 50 54 0.00 58 0 0 34 52 33 9 55 31.9 46 107 64 34 16 29 35 28 38 34 8 35 35 36 32 0.00 59 0 0 34 37 28 9 55 34.3 47 107 63 34 1 17 35 13 39 33 53 21 35 21 35 0.00 60 0 0 34 21 47 9 55 36.9 48 108 62 33 45 28 34 58 5 33 37 31 35 6 2 0.00 61 0 0 34 5 29 9 55 39.4 49 108 62 33 29 4 34 41 55 33 21 5 34 49 53 0.00 62 0 0 33 48 35 9 55 42.1 50 109 61 33 12 2 34 25 8 33 4 2 34 33 9 0.00 63 0 0 33 31 5 9 55 44.8 51 109 60 32 54 24 34 7 45 32 46 22 34 15 47 0.00 64 0 0 33 12 57 9 55 47.5 51 110 60 32 36 9 33 49 46 32 28 5 33 57 49 0.00 65 0 0 32 54 12 9 55 50.3 52 111 59 32 17 15 33 31 9 32 9 10 33 39 14 0.00 66 0 0 32 34 49 9 55 53.2 53 111 58 31 57 44 33 11 54 31 49 37 33 20 1 0.00 67 0 0 32 14 49 9 55 56.1 54 112 57 31 37 35 32 52 2 31 29 26 33 0 11 0.00 68 0 0 31 54 10 9 55 59.0 55 112 57 31 16 47 32 31 31 31 8 36 32 39 43 0.00 69 0 0 31 32 52 9 56 2.1 56 113 56 30 55 21 32 10 23 30 47 8 32 18 36 0.00 70 0 0 31 10 55 9 56 5.1 57 113 55 30 33 15 31 48 35 30 25 0 31 56 50 0.00 71 0 0 30 48 19 9 56 8.3 58 114 54 30 10 30 31 26 8 30 2 13 31 34 25 0.00 72 0 0 30 25 4 9 56 11.5 59 114 53 29 47 5 31 3 2 29 38 46 31 11 21 0.00 73 0 0 30 1 8 9 56 14.7 60 115 53 29 23 0 30 39 16 29 14 39 30 47 38 0.00 74 0 0 29 36 33 9 56 18.0 61 115 52 28 58 15 30 14 51 28 49 51 30 23 14 0.00 75 0 0 29 11 17 9 56 21.4 62 116 51 28 32 49 29 49 45 28 24 24 29 58 10 0.00 76 0 0 28 45 21 9 56 24.8 63 116 50 28 6 43 29 23 59 27 58 15 29 32 26 0.00 77 0 0 28 18 44 9 56 28.3 64 117 49 27 39 56 28 57 32 27 31 26 29 6 2 0.00 78 0 0 27 51 26 9 56 31.9 65 117 48 27 12 28 28 30 24 27 3 55 28 38 56 0.00 79 0 0 27 23 27 9 56 35.5 66 118 47 26 44 18 28 2 35 26 35 44 28 11 10 0.00 80 0 0 26 54 47 9 56 39.2 67 118 46 26 15 27 27 34 6 26 6 51 27 42 42 0.00 81 0 0 26 25 25 9 56 42.9 68 119 45 25 45 55 27 4 54 25 37 16 27 13 33 0.00 82 0 0 25 55 22 9 56 46.7 69 119 44 25 15 41 26 35 2 25 7 0 26 43 43 0.00 83 0 0 25 24 37 9 56 50.6 70 120 43 24 44 46 26 4 28 24 36 2 26 13 11 0.00 84 0 0 24 53 11 9 56 54.5 71 120 43 24 13 9 25 33 12 24 4 23 25 41 58 0.00 85 0 0 24 21 3 9 56 58.5 72 120 42 23 40 51 25 1 15 23 32 2 25 10 4 0.00 86 0 0 23 48 14 9 57 2.5 73 121 41 23 7 51 24 28 37 22 59 0 24 37 28 0.00 87 0 0 23 14 44 9 57 6.6 74 121 40 22 34 10 23 55 18 22 25 17 24 4 11 0.00 88 0 0 22 40 33 9 57 10.8 75 122 39 21 59 48 23 21 17 21 50 53 23 30 12 0.00 89 0 0 22 5 41 9 57 15.0 76 122 37 21 24 45 22 46 36 21 15 48 22 55 33 0.00 90 0 0 21 30 8 9 57 19.2 78 123 36 20 49 2 22 11 13 20 40 2 22 20 14 0.00 91 0 0 20 53 55 9 57 23.6 79 123 35 20 12 39 21 35 11 20 3 36 21 44 13 0.00 92 0 0 20 17 2 9 57 27.9 80 123 34 19 35 36 20 58 29 19 26 31 21 7 33 0.00 93 0 0 19 39 30 9 57 32.4 81 124 33 18 57 53 20 21 7 18 48 46 20 30 14 0.00 94 0 0 19 1 19 9 57 36.8 82 124 32 18 19 32 19 43 6 18 10 23 19 52 15 0.00 95 0 0 18 22 30 9 57 41.4 83 125 31 17 40 33 19 4 27 17 31 22 19 13 38 0.00 96 0 0 17 43 4 9 57 45.9 84 125 30 17 0 57 18 25 10 16 51 43 18 34 24 0.00 97 0 0 17 3 0 9 57 50.5 85 126 29 16 20 44 17 45 17 16 11 28 17 54 32 0.00 98 0 0 16 22 21 9 57 55.2 87 127 28 15 39 55 17 4 47 15 30 37 17 14 4 0.00 99 0 0 15 41 6 9 57 59.9 88 128 27 14 58 31 16 23 41 14 49 12 16 33 1 0.00 100 0 0 14 59 18 9 58 4.6 89 133 26 14 16 34 15 42 2 14 7 12 15 51 23 0.00 101 0 0 14 16 57 9 58 9.4 89 293 24 13 34 4 14 59 49 13 24 40 15 9 12 0.00 102 0 0 13 34 3 9 58 14.2 88 302 23 12 51 2 14 17 4 12 41 37 14 26 29 0.00 103 0 0 12 50 39 9 58 19.0 87 304 22 12 7 31 13 33 48 11 58 3 13 43 15 0.00 104 0 0 12 6 46 9 58 23.8 86 305 21 11 23 30 12 50 2 11 14 1 12 59 31 0.00 105 0 0 11 22 25 9 58 28.7 85 305 20 10 39 1 12 5 48 10 29 31 12 15 18 0.00 106 0 0 10 37 37 9 58 33.5 83 306 19 9 54 6 11 21 7 9 44 35 11 30 39 0.00 107 0 0 9 52 24 9 58 38.4 82 306 17 9 8 47 10 36 0 8 59 14 10 45 33 0.00 108 0 0 9 6 47 9 58 43.3 81 306 16 8 23 5 9 50 30 8 13 30 10 0 4 0.00 109 0 0 8 20 49 9 58 48.2 80 307 15 7 37 1 9 4 37 7 27 26 9 14 13 0.00 110 0 0 7 34 31 9 58 53.1 78 307 14 6 50 38 8 18 24 6 41 1 8 28 1 0.00 111 0 0 6 47 55 9 58 58.0 77 307 12 6 3 57 7 31 52 5 54 19 7 41 30 0.00 112 0 0 6 1 2 9 59 2.9 76 307 11 5 17 0 6 45 3 5 7 22 6 54 42 -0.01 113 0 0 5 13 54 9 59 7.7 74 307 10 4 29 49 5 57 59 4 20 10 6 7 39 -0.01 114 0 0 4 26 34 9 59 12.6 73 307 9 3 42 26 5 10 42 3 32 46 5 20 22 -0.01 115 0 0 3 39 3 9 59 17.4 72 307 8 2 54 53 4 23 14 2 45 12 4 32 55 -0.01 116 0 0 2 51 24 9 59 22.2 71 308 6 2 7 12 3 35 37 1 57 31 3 45 18 -0.01 117 0 0 2 3 38 9 59 27.0 69 308 5 1 19 24 2 47 52 1 9 43 2 57 34 -0.01 118 0 0 1 15 48 9 59 31.7 68 308 4 0 31 33 2 0 3 0 21 52 2 9 44 -0.01 119 0 0 0 27 55 9 59 36.4 67 308 3 - 0 16 20 1 12 10 - 0 26 2 1 21 52 -0.01 120 0 0 - 0 19 59 9 59 41.0 65 308 1 - 1 4 13 0 24 16 - 1 13 55 0 33 58 -0.01 121 0 0 - 1 7 50 9 59 45.6 64 308 0 - 1 52 4 - 0 23 36 - 2 1 46 - 0 13 55 -0.01 122 0 0 - 1 55 38 9 59 50.2 63 308 -1 - 2 39 51 - 1 11 25 - 2 49 32 - 1 1 44 -0.01 123 0 0 - 2 43 21 9 59 54.6 62 308 -2 - 3 27 31 - 1 59 10 - 3 37 12 - 1 49 29 -0.01 124 0 0 - 3 30 55 9 59 59.1 60 308 -4 - 4 15 3 - 2 46 46 - 4 24 43 - 2 37 6 -0.01 125 0 0 - 4 18 20 10 0 3.4 59 307 -5 - 5 2 25 - 3 34 14 - 5 12 4 - 3 24 34 -0.01 126 0 0 - 5 5 32 10 0 7.7 58 307 -6 - 5 49 34 - 4 21 30 - 5 59 13 - 4 11 51 -0.01 127 0 0 - 5 52 31 10 0 11.9 56 307 -7 - 6 36 29 - 5 8 33 - 6 46 7 - 4 58 55 -0.01 128 0 0 - 6 39 15 10 0 16.0 55 307 -8 - 7 23 8 - 5 55 21 - 7 32 45 - 5 45 44 -0.01 129 0 0 - 7 25 41 10 0 20.1 54 307 -10 - 8 9 30 - 6 41 52 - 8 19 5 - 6 32 16 -0.01 130 0 0 - 8 11 48 10 0 24.1 53 307 -11 - 8 55 31 - 7 28 4 - 9 5 6 - 7 18 29 -0.01 131 0 0 - 8 57 34 10 0 28.0 51 307 -12 - 9 41 11 - 8 13 56 - 9 50 44 - 8 4 22 -0.01 132 0 0 - 9 42 57 10 0 31.8 50 307 -13 -10 26 28 - 8 59 25 -10 36 0 - 8 49 53 -0.01 133 0 0 -10 27 56 10 0 35.5 49 306 -14 -11 11 21 - 9 44 31 -11 20 51 - 9 35 0 -0.01 134 0 0 -11 12 30 10 0 39.2 48 306 -16 -11 55 47 -10 29 12 -12 5 16 -10 19 42 -0.01 135 0 0 -11 56 36 10 0 42.7 46 306 -17 -12 39 46 -11 13 25 -12 49 13 -11 3 58 -0.01 136 0 0 -12 40 14 10 0 46.2 45 306 -18 -13 23 16 -11 57 11 -13 32 41 -11 47 45 -0.01 137 0 0 -13 23 22 10 0 49.5 44 306 -19 -14 6 16 -12 40 27 -14 15 40 -12 31 3 -0.01 138 0 0 -14 5 59 10 0 52.8 43 305 -20 -14 48 44 -13 23 12 -14 58 6 -13 13 50 -0.01 139 0 0 -14 48 3 10 0 56.0 42 305 -21 -15 30 40 -14 5 26 -15 40 1 -13 56 5 -0.01 140 0 0 -15 29 35 10 0 59.0 40 305 -23 -16 12 3 -14 47 6 -16 21 21 -14 37 48 -0.01 141 0 0 -16 10 32 10 1 2.0 39 305 -24 -16 52 51 -15 28 13 -17 2 7 -15 18 56 -0.01 142 0 0 -16 50 55 10 1 4.9 38 304 -25 -17 33 4 -16 8 44 -17 42 18 -15 59 30 -0.01 143 0 0 -17 30 41 10 1 7.7 37 304 -26 -18 12 41 -16 48 40 -18 21 53 -16 39 28 -0.01 144 0 0 -18 9 50 10 1 10.4 36 304 -27 -18 51 41 -17 28 0 -19 0 50 -17 18 50 -0.01 145 0 0 -18 48 23 10 1 13.0 35 303 -28 -19 30 3 -18 6 42 -19 39 10 -17 57 34 -0.01 146 0 0 -19 26 17 10 1 15.5 33 303 -29 -20 7 47 -18 44 46 -20 16 52 -18 35 40 -0.01 147 0 0 -20 3 32 10 1 17.9 32 303 -30 -20 44 52 -19 22 12 -20 53 55 -19 13 9 -0.01 148 0 0 -20 40 9 10 1 20.2 31 302 -31 -21 21 18 -19 58 59 -21 30 19 -19 49 58 -0.01 149 0 0 -21 16 6 10 1 22.5 30 302 -32 -21 57 5 -20 35 6 -22 6 4 -20 26 7 -0.01 150 0 0 -21 51 23 10 1 24.6 29 302 -33 -22 32 12 -21 10 34 -22 41 8 -21 1 37 -0.01 151 0 0 -22 26 0 10 1 26.6 28 301 -34 -23 6 38 -21 45 21 -23 15 32 -21 36 27 -0.01 152 0 0 -22 59 57 10 1 28.6 27 301 -35 -23 40 25 -22 19 29 -23 49 16 -22 10 37 -0.01 153 0 0 -23 33 13 10 1 30.4 26 301 -36 -24 13 30 -22 52 55 -24 22 20 -22 44 6 -0.01 154 0 0 -24 5 48 10 1 32.2 25 300 -37 -24 45 55 -23 25 41 -24 54 42 -23 16 54 -0.01 155 0 0 -24 37 43 10 1 33.9 23 300 -38 -25 17 39 -23 57 46 -25 26 24 -23 49 1 -0.01 156 0 0 -25 8 57 10 1 35.5 22 299 -39 -25 48 42 -24 29 11 -25 57 25 -24 20 28 -0.02 157 0 0 -25 39 29 10 1 37.0 21 299 -40 -26 19 5 -24 59 54 -26 27 45 -24 51 13 -0.02 158 0 0 -26 9 21 10 1 38.5 20 298 -41 -26 48 46 -25 29 56 -26 57 24 -25 21 18 -0.02 159 0 0 -26 38 32 10 1 39.8 19 298 -42 -27 17 47 -25 59 17 -27 26 23 -25 50 41 -0.02 160 0 0 -27 7 3 10 1 41.1 18 298 -43 -27 46 7 -26 27 58 -27 54 40 -26 19 24 -0.02 161 0 0 -27 34 52 10 1 42.3 17 297 -44 -28 13 47 -26 55 58 -28 22 18 -26 47 26 -0.02 162 0 0 -28 2 2 10 1 43.5 16 297 -45 -28 40 46 -27 23 17 -28 49 15 -27 14 48 -0.02 163 0 0 -28 28 31 10 1 44.5 15 296 -46 -29 7 5 -27 49 56 -29 15 32 -27 41 29 -0.02 164 0 0 -28 54 20 10 1 45.5 14 296 -47 -29 32 44 -28 15 55 -29 41 9 -28 7 30 -0.02 165 0 0 -29 19 29 10 1 46.4 13 295 -48 -29 57 43 -28 41 13 -30 6 6 -28 32 51 -0.02 166 0 0 -29 43 58 10 1 47.2 12 295 -49 -30 22 3 -29 5 52 -30 30 24 -28 57 31 -0.02 167 0 0 -30 7 48 10 1 48.0 11 294 -49 -30 45 44 -29 29 52 -30 54 2 -29 21 33 -0.02 168 0 0 -30 30 59 10 1 48.7 11 294 -50 -31 8 46 -29 53 12 -31 17 2 -29 44 55 -0.02 169 0 0 -30 53 31 10 1 49.4 10 293 -51 -31 31 9 -30 15 52 -31 39 23 -30 7 38 -0.02 170 0 0 -31 15 24 10 1 49.9 9 293 -52 -31 52 53 -30 37 55 -32 1 6 -30 29 42 -0.02 171 0 0 -31 36 39 10 1 50.5 8 292 -53 -32 13 59 -30 59 18 -32 22 10 -30 51 8 -0.02 172 0 0 -31 57 16 10 1 50.9 7 292 -54 -32 34 28 -31 20 4 -32 42 37 -31 11 55 -0.02 173 0 0 -32 17 15 10 1 51.3 6 291 -54 -32 54 19 -31 40 12 -33 2 26 -31 32 4 -0.03 174 0 0 -32 36 37 10 1 51.6 5 291 -55 -33 13 33 -31 59 42 -33 21 38 -31 51 36 -0.03 175 0 0 -32 55 22 10 1 51.9 4 290 -56 -33 32 10 -32 18 34 -33 40 13 -32 10 31 -0.03 176 0 0 -33 13 30 10 1 52.1 3 289 -57 -33 50 10 -32 36 50 -33 58 12 -32 28 48 -0.04 177 0 0 -33 31 2 10 1 52.3 2 289 -57 -34 7 35 -32 54 29 -34 15 35 -32 46 29 -0.05 178 0 0 -33 47 58 10 1 52.4 1 288 -58 -34 24 23 -33 11 32 -34 32 21 -33 3 34 -0.08 179 0 0 -34 4 17 10 1 52.5 1 288 -59 -34 40 35 -33 27 59 -34 48 32 -33 20 2 -0.18 Uncertainty in time = +/- 2 secs Prediction of 2023 May 29.0 Data for the target star ------------------------ * name: UCAC4 523-054769 * constellation : Coma Berenices * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 12 22 57.4761 DE: +14 30 43.777 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 12 22 57.4758 DE: +14 30 43.779 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (618) Elfriede asteroid class: approx. diameter [km]: 128 approx. diameter ["]: 0.048 distance from Earth [AU]: 3.66560 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#131 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): 0.016", 0.002", 107.574° remarks: * orbital elements for (618)Elfriede : Mean anomaly = 219.9779890705 deg Arg. of pericenter = 230.0320676789 deg Long. of node = 110.8283546311 deg Inclination = 17.0518511136 deg Eccentricity = 0.0690905351 Semimajor axis = 3.1922890031 AU Perihelion dist = 2.9717320478 AU Mag: H = 8.35, G = 0.15 Epoch of elements : MJD 60143.41534722 TDT (2023 Jul 18.4153) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1312023Apr24,4.51,2023,7,18,9.968821,0.001951,0.000789,13.026724,-9.265251,0.004950,-0.001498,0.000000,0.000001 100.5452,14.3846,32.04,21.03,False UCAC4 523-054769,12.38263229,14.5121603,0.00,12.24,0.00,0.0,0,,12.40230979,14.3846005,2.54,0.00,0,0,0 618,Elfriede,14.67,127.8,3.6656,0,0,2.151,-22.23,,6.8,0 0,219.9062,2023,7,18,230.0321,110.8284,17.0519,0.06909,3.19229,2.97173,8.35,5.0,0.15 1.110,0.0160,0.0020,108,0.0053,Known errors,-1.00,-1,-1,-1 20230718_054769,60092.98 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 May 28, 23:37 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org