IOTA/IOTA-ES occultation update for (435) Ella / UCAC4 325-160554 event on 2024 Oct 19, 12:15 UT Visible from Summary ------- On 2024 Oct 19 UT, the 38.542 km diameter asteroid (435) Ella will occult a 11.1 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 4.06 mag to 15.13 mag (the magnitude of the asteroid) for at most 1.330 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 Oct 19, 12:12 - 2024 Oct 19, 12:18 * geocentric midpoint of event [JD]: 2460603.01075588 * magnitude of target star: 11.10 * magnitude drop [mag]: 4.06 * estimated maximum duration [s]: 1.330 * Moon: 94 % sunlit, 139° distance * Sun: 69° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 41 * 1 sigma uncertainty interval [path widths]: +/- 0.12 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.003", 90°) * approx speed of asteroid's shadow [km/s]: 29.0507 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 325-160554 by 435 Ella on 2024 Oct 19 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 - 17 0 0 16 8 13 12 12 5.5 0 116 62 15 55 44 16 20 44 15 52 45 16 23 44 .... - 16 0 0 15 39 54 12 12 5.5 2 117 63 15 27 25 15 52 24 15 24 26 15 55 23 -0.15 - 15 0 0 15 11 42 12 12 5.7 3 117 63 14 59 14 15 24 11 14 56 15 15 27 10 -0.25 - 14 0 0 14 43 38 12 12 5.9 4 117 64 14 31 11 14 56 6 14 28 13 14 59 5 -0.29 - 13 0 0 14 15 43 12 12 6.3 5 117 65 14 3 18 14 28 10 14 0 19 14 31 9 -0.31 - 12 0 0 13 47 58 12 12 6.7 6 118 65 13 35 34 14 0 24 13 32 35 14 3 23 -0.33 - 11 0 0 13 20 24 12 12 7.2 7 118 66 13 8 0 13 32 48 13 5 2 13 35 47 -0.34 - 10 0 0 12 53 0 12 12 7.7 8 118 67 12 40 38 13 5 24 12 37 40 13 8 22 -0.35 - 9 0 0 12 25 49 12 12 8.4 9 118 67 12 13 28 12 38 11 12 10 31 12 41 9 -0.35 - 8 0 0 11 58 51 12 12 9.1 10 118 68 11 46 31 12 11 12 11 43 34 12 14 9 -0.36 - 7 0 0 11 32 6 12 12 9.9 11 119 68 11 19 47 11 44 25 11 16 50 11 47 23 -0.36 - 6 0 0 11 5 35 12 12 10.8 12 119 69 10 53 18 11 17 53 10 50 21 11 20 50 -0.36 - 5 0 0 10 39 19 12 12 11.8 13 119 69 10 27 3 10 51 36 10 24 7 10 54 33 -0.37 - 4 0 0 10 13 18 12 12 12.9 14 119 69 10 1 4 10 25 34 9 58 8 10 28 30 -0.37 - 3 0 0 9 47 34 12 12 14.0 15 120 70 9 35 21 9 59 48 9 32 25 10 2 44 -0.37 - 2 0 0 9 22 6 12 12 15.3 17 120 70 9 9 55 9 34 19 9 6 59 9 37 15 -0.37 - 1 0 0 8 56 56 12 12 16.6 18 120 70 8 44 46 9 9 8 8 41 51 9 12 3 -0.37 0 0 0 8 32 4 12 12 18.0 19 120 70 8 19 55 8 44 14 8 17 0 8 47 9 -0.37 1 0 0 8 7 30 12 12 19.4 20 120 70 7 55 23 8 19 39 7 52 29 8 22 34 -0.38 2 0 0 7 43 16 12 12 21.0 21 121 70 7 31 10 7 55 23 7 28 16 7 58 18 -0.38 3 0 0 7 19 21 12 12 22.6 22 121 70 7 7 16 7 31 27 7 4 23 7 34 21 -0.38 4 0 0 6 55 47 12 12 24.3 23 121 70 6 43 43 7 7 51 6 40 50 7 10 45 -0.38 5 0 0 6 32 33 12 12 26.0 24 121 69 6 20 31 6 44 36 6 17 38 6 47 29 -0.38 6 0 0 6 9 40 12 12 27.8 25 121 69 5 57 40 6 21 42 5 54 48 6 24 35 -0.38 7 0 0 5 47 10 12 12 29.8 26 121 69 5 35 11 5 59 9 5 32 19 6 2 2 -0.38 8 0 0 5 25 1 12 12 31.7 27 122 68 5 13 3 5 36 59 5 10 12 5 39 52 -0.38 9 0 0 5 3 15 12 12 33.8 28 122 68 4 51 19 5 15 12 4 48 28 5 18 4 -0.38 10 0 0 4 41 52 12 12 35.9 29 122 67 4 29 57 4 53 47 4 27 6 4 56 39 -0.38 11 0 0 4 20 52 12 12 38.1 30 122 67 4 8 59 4 32 46 4 6 9 4 35 38 -0.38 12 0 0 4 0 17 12 12 40.3 31 123 66 3 48 25 4 12 9 3 45 35 4 15 0 -0.38 13 0 0 3 40 5 12 12 42.6 32 123 66 3 28 15 3 51 57 3 25 25 3 54 47 -0.39 14 0 0 3 20 19 12 12 45.0 33 123 65 3 8 30 3 32 8 3 5 40 3 34 59 -0.39 15 0 0 3 0 57 12 12 47.4 34 123 64 2 49 10 3 12 45 2 46 20 3 15 35 -0.39 16 0 0 2 42 0 12 12 49.9 35 124 64 2 30 14 2 53 47 2 27 25 2 56 37 -0.39 17 0 0 2 23 29 12 12 52.5 36 124 63 2 11 45 2 35 15 2 8 56 2 38 4 -0.39 18 0 0 2 5 24 12 12 55.1 37 124 62 1 53 41 2 17 8 1 50 52 2 19 57 -0.39 19 0 0 1 47 45 12 12 57.7 38 124 61 1 36 3 1 59 28 1 33 15 2 2 16 -0.39 20 0 0 1 30 32 12 13 0.5 39 125 61 1 18 52 1 42 14 1 16 4 1 45 2 -0.39 21 0 0 1 13 46 12 13 3.2 40 125 60 1 2 7 1 25 26 0 59 20 1 28 14 -0.39 22 0 0 0 57 27 12 13 6.1 41 125 59 0 45 49 1 9 6 0 43 2 1 11 54 -0.39 23 0 0 0 41 35 12 13 8.9 42 126 58 0 29 59 0 53 13 0 27 12 0 56 0 -0.39 24 0 0 0 26 11 12 13 11.9 43 126 57 0 14 35 0 37 47 0 11 49 0 40 34 -0.39 25 0 0 0 11 14 12 13 14.8 44 126 56 - 0 0 21 0 22 49 - 0 3 7 0 25 35 -0.39 26 0 0 - 0 3 16 12 13 17.9 45 127 56 - 0 14 49 0 8 18 - 0 17 35 0 11 4 -0.39 27 0 0 - 0 17 17 12 13 20.9 46 127 55 - 0 28 49 - 0 5 45 - 0 31 35 - 0 2 58 -0.39 28 0 0 - 0 30 51 12 13 24.1 47 128 54 - 0 42 21 - 0 19 19 - 0 45 7 - 0 16 33 -0.39 29 0 0 - 0 43 56 12 13 27.2 48 128 53 - 0 55 25 - 0 32 25 - 0 58 11 - 0 29 40 -0.39 30 0 0 - 0 56 33 12 13 30.4 49 129 52 - 1 8 1 - 0 45 3 - 1 10 46 - 0 42 18 -0.39 31 0 0 - 1 8 41 12 13 33.6 50 129 51 - 1 20 8 - 0 57 12 - 1 22 53 - 0 54 27 -0.39 32 0 0 - 1 20 20 12 13 36.9 51 130 50 - 1 31 47 - 1 8 53 - 1 34 31 - 1 6 8 -0.39 33 0 0 - 1 31 31 12 13 40.2 52 130 49 - 1 42 56 - 1 20 4 - 1 45 41 - 1 17 20 -0.39 34 0 0 - 1 42 13 12 13 43.6 53 131 48 - 1 53 37 - 1 30 47 - 1 56 21 - 1 28 3 -0.39 35 0 0 - 1 52 26 12 13 47.0 53 132 47 - 2 3 49 - 1 41 1 - 2 6 33 - 1 38 17 -0.39 36 0 0 - 2 2 9 12 13 50.4 54 133 46 - 2 13 32 - 1 50 46 - 2 16 16 - 1 48 2 -0.39 37 0 0 - 2 11 24 12 13 53.8 55 133 45 - 2 22 46 - 2 0 1 - 2 25 29 - 1 57 17 -0.39 38 0 0 - 2 20 9 12 13 57.3 56 134 44 - 2 31 31 - 2 8 47 - 2 34 14 - 2 6 3 -0.40 39 0 0 - 2 28 25 12 14 0.8 57 135 43 - 2 39 46 - 2 17 4 - 2 42 29 - 2 14 20 -0.40 40 0 0 - 2 36 12 12 14 4.4 58 136 42 - 2 47 32 - 2 24 51 - 2 50 14 - 2 22 8 -0.40 41 0 0 - 2 43 29 12 14 8.0 58 137 41 - 2 54 48 - 2 32 8 - 2 57 31 - 2 29 25 -0.40 42 0 0 - 2 50 16 12 14 11.6 59 138 40 - 3 1 35 - 2 38 57 - 3 4 17 - 2 36 14 -0.40 43 0 0 - 2 56 34 12 14 15.2 60 139 40 - 3 7 52 - 2 45 15 - 3 10 35 - 2 42 32 -0.40 44 0 0 - 3 2 22 12 14 18.8 61 140 39 - 3 13 40 - 2 51 4 - 3 16 22 - 2 48 21 -0.40 45 0 0 - 3 7 41 12 14 22.5 61 142 38 - 3 18 58 - 2 56 23 - 3 21 40 - 2 53 40 -0.40 46 0 0 - 3 12 30 12 14 26.2 62 143 37 - 3 23 46 - 3 1 12 - 3 26 28 - 2 58 29 -0.40 47 0 0 - 3 16 49 12 14 29.9 63 144 36 - 3 28 5 - 3 5 31 - 3 30 47 - 3 2 49 -0.40 48 0 0 - 3 20 38 12 14 33.7 63 146 35 - 3 31 54 - 3 9 21 - 3 34 36 - 3 6 39 -0.40 49 0 0 - 3 23 57 12 14 37.4 64 147 34 - 3 35 13 - 3 12 41 - 3 37 55 - 3 9 58 -0.40 50 0 0 - 3 26 47 12 14 41.2 65 149 33 - 3 38 2 - 3 15 31 - 3 40 44 - 3 12 48 -0.40 51 0 0 - 3 29 7 12 14 45.0 65 151 32 - 3 40 22 - 3 17 50 - 3 43 3 - 3 15 8 -0.40 52 0 0 - 3 30 56 12 14 48.8 66 153 31 - 3 42 11 - 3 19 40 - 3 44 53 - 3 16 58 -0.40 53 0 0 - 3 32 16 12 14 52.6 66 155 30 - 3 43 31 - 3 21 0 - 3 46 13 - 3 18 18 -0.40 54 0 0 - 3 33 6 12 14 56.4 66 157 29 - 3 44 21 - 3 21 50 - 3 47 3 - 3 19 8 -0.40 55 0 0 - 3 33 26 12 15 0.3 67 159 28 - 3 44 41 - 3 22 10 - 3 47 23 - 3 19 28 -0.40 56 0 0 - 3 33 16 12 15 4.1 67 161 27 - 3 44 31 - 3 22 0 - 3 47 13 - 3 19 18 -0.40 57 0 0 - 3 32 36 12 15 8.0 67 163 26 - 3 43 51 - 3 21 20 - 3 46 33 - 3 18 38 -0.40 58 0 0 - 3 31 26 12 15 11.8 68 166 25 - 3 42 41 - 3 20 10 - 3 45 23 - 3 17 28 -0.40 59 0 0 - 3 29 46 12 15 15.7 68 168 24 - 3 41 1 - 3 18 30 - 3 43 43 - 3 15 48 -0.40 60 0 0 - 3 27 36 12 15 19.6 68 170 23 - 3 38 52 - 3 16 20 - 3 41 34 - 3 13 38 -0.40 61 0 0 - 3 24 57 12 15 23.5 68 173 22 - 3 36 12 - 3 13 40 - 3 38 54 - 3 10 58 -0.40 62 0 0 - 3 21 47 12 15 27.4 68 175 21 - 3 33 3 - 3 10 30 - 3 35 45 - 3 7 48 -0.40 63 0 0 - 3 18 8 12 15 31.3 68 178 20 - 3 29 24 - 3 6 50 - 3 32 6 - 3 4 8 -0.40 64 0 0 - 3 13 58 12 15 35.2 68 180 19 - 3 25 15 - 3 2 41 - 3 27 57 - 2 59 58 -0.40 65 0 0 - 3 9 19 12 15 39.1 68 183 18 - 3 20 36 - 2 58 1 - 3 23 18 - 2 55 18 -0.40 66 0 0 - 3 4 10 12 15 43.0 68 185 17 - 3 15 27 - 2 52 51 - 3 18 10 - 2 50 9 -0.40 67 0 0 - 2 58 31 12 15 46.8 68 188 16 - 3 9 49 - 2 47 12 - 3 12 31 - 2 44 29 -0.40 68 0 0 - 2 52 22 12 15 50.7 67 190 15 - 3 3 41 - 2 41 3 - 3 6 23 - 2 38 20 -0.40 69 0 0 - 2 45 44 12 15 54.6 67 192 14 - 2 57 3 - 2 34 24 - 2 59 46 - 2 31 41 -0.40 70 0 0 - 2 38 36 12 15 58.5 67 194 12 - 2 49 56 - 2 27 15 - 2 52 38 - 2 24 32 -0.40 71 0 0 - 2 30 58 12 16 2.4 66 197 11 - 2 42 19 - 2 19 37 - 2 45 2 - 2 16 53 -0.40 72 0 0 - 2 22 51 12 16 6.2 66 199 10 - 2 34 12 - 2 11 29 - 2 36 55 - 2 8 45 -0.40 73 0 0 - 2 14 14 12 16 10.1 66 201 9 - 2 25 36 - 2 2 51 - 2 28 20 - 2 0 7 -0.40 74 0 0 - 2 5 8 12 16 14.0 65 203 8 - 2 16 31 - 1 53 44 - 2 19 14 - 1 51 0 -0.40 75 0 0 - 1 55 33 12 16 17.8 64 204 7 - 2 6 56 - 1 44 8 - 2 9 40 - 1 41 24 -0.40 76 0 0 - 1 45 28 12 16 21.6 64 206 6 - 1 56 52 - 1 34 2 - 1 59 36 - 1 31 18 -0.40 77 0 0 - 1 34 54 12 16 25.4 63 208 5 - 1 46 19 - 1 23 27 - 1 49 3 - 1 20 43 -0.40 78 0 0 - 1 23 51 12 16 29.2 63 209 4 - 1 35 17 - 1 12 23 - 1 38 2 - 1 9 39 -0.40 79 0 0 - 1 12 19 12 16 33.0 62 211 3 - 1 23 46 - 1 0 50 - 1 26 31 - 0 58 5 -0.40 80 0 0 - 1 0 18 12 16 36.7 61 212 2 - 1 11 46 - 0 48 49 - 1 14 31 - 0 46 3 -0.40 81 0 0 - 0 47 48 12 16 40.5 61 213 1 - 0 59 18 - 0 36 18 - 1 2 3 - 0 33 32 -0.40 82 0 0 - 0 34 50 12 16 44.2 60 215 0 - 0 46 21 - 0 23 19 - 0 49 6 - 0 20 33 -0.40 83 0 0 - 0 21 23 12 16 47.9 59 216 -1 - 0 32 55 - 0 9 51 - 0 35 41 - 0 7 5 -0.40 84 0 0 - 0 7 28 12 16 51.5 58 217 -2 - 0 19 1 0 4 5 - 0 21 47 0 6 52 -0.40 85 0 0 0 6 55 12 16 55.2 57 218 -3 - 0 4 39 0 18 30 - 0 7 25 0 21 17 -0.40 86 0 0 0 21 46 12 16 58.8 57 219 -4 0 10 11 0 33 22 0 7 24 0 36 9 -0.40 87 0 0 0 37 5 12 17 2.4 56 220 -5 0 25 28 0 48 42 0 22 42 0 51 30 -0.40 88 0 0 0 52 52 12 17 5.9 55 221 -6 0 41 14 1 4 30 0 38 27 1 7 18 -0.40 89 0 0 1 9 6 12 17 9.5 54 222 -7 0 57 27 1 20 46 0 54 39 1 23 34 -0.40 90 0 0 1 25 47 12 17 12.9 53 222 -8 1 14 6 1 37 28 1 11 19 1 40 16 -0.40 91 0 0 1 42 55 12 17 16.4 52 223 -9 1 31 13 1 54 38 1 28 25 1 57 26 -0.40 92 0 0 2 0 30 12 17 19.8 51 224 -10 1 48 47 2 12 14 1 45 58 2 15 3 -0.40 93 0 0 2 18 31 12 17 23.2 50 225 -11 2 6 47 2 30 17 2 3 58 2 33 6 -0.40 94 0 0 2 36 59 12 17 26.5 49 225 -12 2 25 13 2 48 46 2 22 24 2 51 35 -0.40 95 0 0 2 55 52 12 17 29.8 49 226 -13 2 44 5 3 7 41 2 41 16 3 10 31 -0.40 96 0 0 3 15 11 12 17 33.1 48 226 -15 3 3 23 3 27 1 3 0 33 3 29 51 -0.40 97 0 0 3 34 56 12 17 36.3 47 227 -16 3 23 6 3 46 47 3 20 16 3 49 38 -0.40 98 0 0 3 55 5 12 17 39.5 46 227 -17 3 43 13 4 6 58 3 40 23 4 9 49 -0.40 99 0 0 4 15 39 12 17 42.6 45 228 -18 4 3 46 4 27 33 4 0 55 4 30 24 -0.40 100 0 0 4 36 37 12 17 45.7 44 228 -19 4 24 42 4 48 33 4 21 51 4 51 24 -0.40 101 0 0 4 57 59 12 17 48.7 43 229 -20 4 46 3 5 9 56 4 43 11 5 12 48 -0.40 102 0 0 5 19 44 12 17 51.7 42 229 -21 5 7 47 5 31 43 5 4 55 5 34 35 -0.40 103 0 0 5 41 52 12 17 54.6 41 230 -22 5 29 53 5 53 53 5 27 1 5 56 45 -0.40 104 0 0 6 4 23 12 17 57.4 40 230 -23 5 52 23 6 16 25 5 49 30 6 19 18 -0.40 105 0 0 6 27 16 12 18 0.2 39 231 -24 6 15 14 6 39 19 6 12 21 6 42 13 -0.40 106 0 0 6 50 31 12 18 3.0 38 231 -25 6 38 27 7 2 35 6 35 34 7 5 29 -0.40 107 0 0 7 14 6 12 18 5.6 37 231 -26 7 2 1 7 26 12 6 59 8 7 29 7 -0.40 108 0 0 7 38 3 12 18 8.3 36 232 -27 7 25 56 7 50 10 7 23 2 7 53 5 -0.40 109 0 0 8 2 19 12 18 10.8 35 232 -28 7 50 11 8 14 28 7 47 17 8 17 23 -0.40 110 0 0 8 26 55 12 18 13.3 34 232 -29 8 14 45 8 39 5 8 11 51 8 42 0 -0.40 111 0 0 8 51 49 12 18 15.7 32 233 -30 8 39 38 9 4 1 8 36 43 9 6 57 -0.40 112 0 0 9 17 2 12 18 18.1 31 233 -31 9 4 50 9 29 16 9 1 55 9 32 12 -0.40 113 0 0 9 42 33 12 18 20.4 30 233 -32 9 30 19 9 54 48 9 27 24 9 57 44 -0.40 114 0 0 10 8 21 12 18 22.6 29 234 -33 9 56 6 10 20 37 9 53 10 10 23 34 -0.39 115 0 0 10 34 25 12 18 24.8 28 234 -34 10 22 9 10 46 43 10 19 13 10 49 40 -0.39 116 0 0 11 0 46 12 18 26.8 27 234 -35 10 48 28 11 13 4 10 45 31 11 16 2 -0.39 117 0 0 11 27 21 12 18 28.8 26 235 -36 11 15 2 11 39 41 11 12 5 11 42 39 -0.39 118 0 0 11 54 11 12 18 30.8 25 235 -37 11 41 51 12 6 32 11 38 53 12 9 30 -0.39 119 0 0 12 21 14 12 18 32.6 24 235 -38 12 8 53 12 33 37 12 5 55 12 36 35 -0.39 120 0 0 12 48 31 12 18 34.4 23 236 -39 12 36 8 13 0 55 12 33 10 13 3 53 -0.39 121 0 0 13 16 0 12 18 36.1 22 236 -40 13 3 36 13 28 25 13 0 38 13 31 24 -0.39 122 0 0 13 43 40 12 18 37.7 21 236 -41 13 31 15 13 56 7 13 28 17 13 59 6 -0.39 123 0 0 14 11 32 12 18 39.3 20 236 -42 13 59 5 14 23 59 13 56 7 14 26 58 -0.39 124 0 0 14 39 33 12 18 40.7 19 237 -43 14 27 6 14 52 1 14 24 7 14 55 1 -0.39 125 0 0 15 7 44 12 18 42.1 18 237 -44 14 55 15 15 20 13 14 52 16 15 23 13 -0.39 126 0 0 15 36 3 12 18 43.4 17 237 -45 15 23 33 15 48 33 15 20 34 15 51 33 -0.39 127 0 0 16 4 29 12 18 44.6 15 238 -46 15 51 59 16 17 0 15 48 59 16 20 1 -0.39 128 0 0 16 33 3 12 18 45.8 14 238 -47 16 20 32 16 45 35 16 17 32 16 48 35 -0.39 129 0 0 17 1 42 12 18 46.8 13 238 -48 16 49 10 17 14 15 16 46 10 17 17 16 -0.40 130 0 0 17 30 27 12 18 47.8 12 239 -49 17 17 54 17 43 1 17 14 54 17 46 2 -0.40 131 0 0 17 59 16 12 18 48.7 11 239 -50 17 46 43 18 11 51 17 43 43 18 14 52 -0.40 132 0 0 18 28 9 12 18 49.5 10 239 -51 18 15 35 18 40 44 18 12 34 18 43 45 -0.40 133 0 0 18 57 4 12 18 50.2 9 240 -52 18 44 30 19 9 40 18 41 29 19 12 42 -0.40 134 0 0 19 26 2 12 18 50.9 8 240 -53 19 13 27 19 38 38 19 10 26 19 41 40 -0.40 135 0 0 19 55 0 12 18 51.5 7 240 -54 19 42 25 20 7 37 19 39 24 20 10 39 -0.40 136 0 0 20 23 59 12 18 51.9 6 241 -54 20 11 23 20 36 36 20 8 22 20 39 38 -0.40 137 0 0 20 52 57 12 18 52.3 5 241 -55 20 40 21 21 5 35 20 37 20 21 8 37 -0.40 138 0 0 21 21 54 12 18 52.7 4 241 -56 21 9 17 21 34 32 21 6 16 21 37 34 -0.40 139 0 0 21 50 49 12 18 52.9 3 242 -57 21 38 12 22 3 27 21 35 11 22 6 29 -0.40 140 0 0 22 19 41 12 18 53.1 2 242 -58 22 7 4 22 32 19 22 4 2 22 35 21 -0.41 141 0 0 22 48 29 12 18 53.2 1 242 -58 22 35 51 23 1 8 22 32 50 23 4 10 -0.44 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 325-160554 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 23 26.8810 DE: -25 01 03.414 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 23 26.8809 DE: -25 01 03.414 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.1 * B mag [mag]: 11.3 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (435) Ella asteroid class: approx. diameter [km]: 39 approx. diameter ["]: 0.023 distance from Earth [AU]: 2.35250 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#95 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): 0.014", 0.003", 90.39° remarks: * orbital elements for (435)Ella : Mean anomaly = 317.4959405311 deg Arg. of pericenter = 333.4812210507 deg Long. of node = 23.1324460102 deg Inclination = 1.8157972739 deg Eccentricity = 0.1546064084 Semimajor axis = 2.4500007543 AU Perihelion dist = 2.0712149370 AU Mag: H = 10.40, G = 0.15 Epoch of elements : MJD 60602.51075563 TDT (2024 Oct 19.5108) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#952023Apr24,1.33,2024,10,19,12.258141,-0.024515,0.369521,16.361555,1.077638,0.005122,0.000162,0.000000,0.000000 63.9042,-25.0059,-7.65,-10.26,False UCAC4 325-160554,18.39080031,-25.0176149,11.27,11.10,11.01,0.0,0,,18.41604517,-25.0059272,4.05,3.70,0,0,0 435,Ella,15.13,38.542,2.3525,0,0,4.500,4.04,,2.0,0 0,317.3647,2024,10,19,333.4812,23.1324,1.8158,0.15461,2.45000,2.07121,10.40,5.0,0.15 1.120,0.0143,0.0025,90,0.0027,Known errors,0.59,0,-1,-1 20241019_160554,60140.65 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:30 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org