IOTA/IOTA-ES occultation update for (1551) Argelander / UCAC4 331-130090 event on 2024 Oct 17, 10:25 UT Visible from Summary ------- On 2024 Oct 17 UT, the 10.245 km diameter asteroid (1551) Argelander will occult a 10.7 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 6.34 mag to 17.05 mag (the magnitude of the asteroid) for at most 0.340 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 17, 10:22 - 2024 Oct 17, 10:28 * geocentric midpoint of event [JD]: 2460600.93439112 * magnitude of target star: 10.71 * magnitude drop [mag]: 6.34 * estimated maximum duration [s]: 0.340 * Moon: 100 % sunlit, 112° distance * Sun: 67° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 11 * 1 sigma uncertainty interval [path widths]: +/- 0.12 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.000", 94°) * approx speed of asteroid's shadow [km/s]: 30.1386 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 331-130090 by 1551 Argelander on 2024 Oct 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 10 0 0 20 21 0 10 22 14.1 1 116 58 20 17 42 20 24 18 20 16 54 20 25 6 .... 11 0 0 19 53 51 10 22 14.2 2 116 59 19 50 33 19 57 8 19 49 45 19 57 56 -0.16 12 0 0 19 26 41 10 22 14.3 3 117 60 19 23 23 19 29 58 19 22 35 19 30 46 -0.25 13 0 0 18 59 31 10 22 14.5 4 117 61 18 56 14 19 2 48 18 55 26 19 3 36 -0.28 14 0 0 18 32 22 10 22 14.9 5 117 61 18 29 5 18 35 39 18 28 17 18 36 27 -0.30 15 0 0 18 5 15 10 22 15.2 6 117 62 18 1 58 18 8 32 18 1 10 18 9 20 -0.32 16 0 0 17 38 10 10 22 15.7 7 118 63 17 34 53 17 41 27 17 34 5 17 42 15 -0.33 17 0 0 17 11 8 10 22 16.2 8 118 63 17 7 51 17 14 25 17 7 4 17 15 13 -0.33 18 0 0 16 44 10 10 22 16.8 9 118 64 16 40 54 16 47 27 16 40 6 16 48 15 -0.34 19 0 0 16 17 17 10 22 17.5 10 119 64 16 14 1 16 20 34 16 13 13 16 21 21 -0.34 20 0 0 15 50 29 10 22 18.3 11 119 65 15 47 13 15 53 46 15 46 25 15 54 33 -0.35 21 0 0 15 23 47 10 22 19.2 12 119 65 15 20 31 15 27 4 15 19 44 15 27 51 -0.35 22 0 0 14 57 12 10 22 20.1 13 120 66 14 53 56 15 0 28 14 53 9 15 1 16 -0.35 23 0 0 14 30 45 10 22 21.1 14 120 66 14 27 29 14 34 0 14 26 42 14 34 48 -0.35 24 0 0 14 4 25 10 22 22.2 15 120 66 14 1 10 14 7 41 14 0 23 14 8 28 -0.36 25 0 0 13 38 15 10 22 23.3 16 120 67 13 35 0 13 41 30 13 34 12 13 42 17 -0.36 26 0 0 13 12 14 10 22 24.5 17 121 67 13 8 59 13 15 29 13 8 12 13 16 16 -0.36 27 0 0 12 46 24 10 22 25.9 19 121 67 12 43 9 12 49 38 12 42 22 12 50 25 -0.36 28 0 0 12 20 44 10 22 27.2 20 121 67 12 17 30 12 23 58 12 16 43 12 24 45 -0.36 29 0 0 11 55 16 10 22 28.7 21 121 67 11 52 2 11 58 30 11 51 15 11 59 17 -0.36 30 0 0 11 30 1 10 22 30.2 22 122 67 11 26 47 11 33 14 11 26 0 11 34 1 -0.36 31 0 0 11 4 58 10 22 31.8 23 122 67 11 1 44 11 8 11 11 0 58 11 8 58 -0.37 32 0 0 10 40 9 10 22 33.5 24 122 67 10 36 56 10 43 22 10 36 9 10 44 9 -0.37 33 0 0 10 15 34 10 22 35.2 25 123 67 10 12 21 10 18 47 10 11 35 10 19 34 -0.37 34 0 0 9 51 14 10 22 37.1 26 123 67 9 48 2 9 54 27 9 47 15 9 55 13 -0.37 35 0 0 9 27 10 10 22 39.0 27 123 66 9 23 57 9 30 22 9 23 11 9 31 8 -0.37 36 0 0 9 3 21 10 22 40.9 28 123 66 9 0 9 9 6 33 8 59 23 9 7 19 -0.37 37 0 0 8 39 49 10 22 42.9 29 124 66 8 36 37 8 43 1 8 35 51 8 43 47 -0.37 38 0 0 8 16 34 10 22 45.0 30 124 65 8 13 23 8 19 45 8 12 36 8 20 32 -0.37 39 0 0 7 53 37 10 22 47.2 31 124 65 7 50 26 7 56 48 7 49 40 7 57 34 -0.37 40 0 0 7 30 58 10 22 49.4 32 124 64 7 27 47 7 34 8 7 27 1 7 34 55 -0.37 41 0 0 7 8 37 10 22 51.7 33 125 64 7 5 27 7 11 48 7 4 41 7 12 34 -0.37 42 0 0 6 46 36 10 22 54.0 34 125 63 6 43 26 6 49 46 6 42 40 6 50 32 -0.37 43 0 0 6 24 55 10 22 56.4 35 125 63 6 21 45 6 28 4 6 20 59 6 28 50 -0.37 44 0 0 6 3 33 10 22 58.9 36 126 62 6 0 24 6 6 43 5 59 38 6 7 28 -0.37 45 0 0 5 42 32 10 23 1.4 37 126 61 5 39 23 5 45 41 5 38 38 5 46 27 -0.37 46 0 0 5 21 52 10 23 4.0 38 126 61 5 18 44 5 25 1 5 17 58 5 25 47 -0.37 47 0 0 5 1 34 10 23 6.6 39 127 60 4 58 26 5 4 42 4 57 40 5 5 28 -0.37 48 0 0 4 41 37 10 23 9.3 40 127 59 4 38 29 4 44 45 4 37 44 4 45 31 -0.38 49 0 0 4 22 3 10 23 12.1 41 127 58 4 18 55 4 25 10 4 18 10 4 25 56 -0.38 50 0 0 4 2 50 10 23 14.9 42 128 58 3 59 43 4 5 58 3 58 58 4 6 43 -0.38 51 0 0 3 44 1 10 23 17.7 43 128 57 3 40 54 3 47 8 3 40 9 3 47 53 -0.38 52 0 0 3 25 35 10 23 20.6 44 129 56 3 22 29 3 28 42 3 21 44 3 29 27 -0.38 53 0 0 3 7 33 10 23 23.6 45 129 55 3 4 27 3 10 39 3 3 42 3 11 24 -0.38 54 0 0 2 49 54 10 23 26.5 46 130 54 2 46 48 2 53 0 2 46 3 2 53 45 -0.38 55 0 0 2 32 40 10 23 29.6 47 130 54 2 29 34 2 35 45 2 28 49 2 36 30 -0.38 56 0 0 2 15 50 10 23 32.6 48 131 53 2 12 44 2 18 55 2 12 0 2 19 40 -0.38 57 0 0 1 59 24 10 23 35.8 49 131 52 1 56 19 2 2 29 1 55 35 2 3 14 -0.38 58 0 0 1 43 24 10 23 38.9 50 132 51 1 40 19 1 46 28 1 39 35 1 47 13 -0.38 59 0 0 1 27 49 10 23 42.1 51 132 50 1 24 44 1 30 53 1 24 0 1 31 38 -0.38 60 0 0 1 12 39 10 23 45.3 52 133 49 1 9 35 1 15 43 1 8 50 1 16 27 -0.38 61 0 0 0 57 55 10 23 48.6 53 134 48 0 54 51 1 0 58 0 54 6 1 1 43 -0.38 62 0 0 0 43 36 10 23 51.9 54 135 47 0 40 33 0 46 40 0 39 48 0 47 24 -0.38 63 0 0 0 29 44 10 23 55.2 55 135 46 0 26 41 0 32 47 0 25 56 0 33 31 -0.38 64 0 0 0 16 18 10 23 58.6 55 136 45 0 13 15 0 19 21 0 12 31 0 20 5 -0.38 65 0 0 0 3 18 10 24 2.0 56 137 45 0 0 16 0 6 21 - 0 0 29 0 7 5 -0.38 66 0 0 - 0 9 15 10 24 5.4 57 138 44 - 0 12 17 - 0 6 13 - 0 13 1 - 0 5 29 -0.38 67 0 0 - 0 21 22 10 24 8.9 58 139 43 - 0 24 24 - 0 18 19 - 0 25 8 - 0 17 35 -0.38 68 0 0 - 0 33 1 10 24 12.4 59 140 42 - 0 36 3 - 0 29 59 - 0 36 47 - 0 29 15 -0.38 69 0 0 - 0 44 14 10 24 15.9 60 141 41 - 0 47 15 - 0 41 12 - 0 47 59 - 0 40 28 -0.38 70 0 0 - 0 54 59 10 24 19.4 60 142 40 - 0 58 1 - 0 51 58 - 0 58 44 - 0 51 14 -0.38 71 0 0 - 1 5 17 10 24 22.9 61 143 39 - 1 8 19 - 1 2 16 - 1 9 2 - 1 1 32 -0.38 72 0 0 - 1 15 8 10 24 26.5 62 145 38 - 1 18 9 - 1 12 7 - 1 18 53 - 1 11 24 -0.38 73 0 0 - 1 24 32 10 24 30.1 62 146 37 - 1 27 32 - 1 21 31 - 1 28 16 - 1 20 47 -0.38 74 0 0 - 1 33 28 10 24 33.7 63 148 36 - 1 36 28 - 1 30 27 - 1 37 12 - 1 29 43 -0.38 75 0 0 - 1 41 56 10 24 37.4 64 149 35 - 1 44 56 - 1 38 56 - 1 45 40 - 1 38 12 -0.38 76 0 0 - 1 49 57 10 24 41.0 64 151 34 - 1 52 57 - 1 46 56 - 1 53 40 - 1 46 13 -0.38 77 0 0 - 1 57 29 10 24 44.7 65 153 33 - 2 0 29 - 1 54 29 - 2 1 13 - 1 53 46 -0.38 78 0 0 - 2 4 34 10 24 48.3 66 154 32 - 2 7 34 - 2 1 34 - 2 8 18 - 2 0 51 -0.38 79 0 0 - 2 11 11 10 24 52.0 66 156 31 - 2 14 11 - 2 8 11 - 2 14 54 - 2 7 28 -0.38 80 0 0 - 2 17 20 10 24 55.7 67 158 30 - 2 20 20 - 2 14 21 - 2 21 3 - 2 13 37 -0.38 81 0 0 - 2 23 1 10 24 59.4 67 160 29 - 2 26 1 - 2 20 2 - 2 26 44 - 2 19 18 -0.38 82 0 0 - 2 28 14 10 25 3.1 67 163 28 - 2 31 13 - 2 25 15 - 2 31 57 - 2 24 31 -0.38 83 0 0 - 2 32 59 10 25 6.9 68 165 27 - 2 35 58 - 2 30 0 - 2 36 41 - 2 29 16 -0.38 84 0 0 - 2 37 15 10 25 10.6 68 167 26 - 2 40 14 - 2 34 16 - 2 40 58 - 2 33 33 -0.38 85 0 0 - 2 41 4 10 25 14.3 68 170 25 - 2 44 3 - 2 38 5 - 2 44 46 - 2 37 21 -0.38 86 0 0 - 2 44 24 10 25 18.1 69 172 24 - 2 47 23 - 2 41 25 - 2 48 6 - 2 40 41 -0.38 87 0 0 - 2 47 16 10 25 21.8 69 175 23 - 2 50 14 - 2 44 17 - 2 50 58 - 2 43 33 -0.38 88 0 0 - 2 49 39 10 25 25.6 69 177 22 - 2 52 38 - 2 46 40 - 2 53 21 - 2 45 57 -0.38 89 0 0 - 2 51 35 10 25 29.3 69 180 21 - 2 54 33 - 2 48 36 - 2 55 16 - 2 47 52 -0.39 90 0 0 - 2 53 1 10 25 33.1 69 182 20 - 2 56 0 - 2 50 3 - 2 56 43 - 2 49 19 -0.39 91 0 0 - 2 54 0 10 25 36.8 69 185 19 - 2 56 59 - 2 51 1 - 2 57 42 - 2 50 18 -0.39 92 0 0 - 2 54 30 10 25 40.6 69 188 18 - 2 57 29 - 2 51 32 - 2 58 12 - 2 50 48 -0.39 93 0 0 - 2 54 32 10 25 44.3 69 190 17 - 2 57 31 - 2 51 34 - 2 58 14 - 2 50 50 -0.39 94 0 0 - 2 54 6 10 25 48.0 68 193 16 - 2 57 5 - 2 51 7 - 2 57 48 - 2 50 24 -0.39 95 0 0 - 2 53 11 10 25 51.8 68 195 15 - 2 56 10 - 2 50 12 - 2 56 53 - 2 49 29 -0.39 96 0 0 - 2 51 48 10 25 55.5 68 197 14 - 2 54 47 - 2 48 49 - 2 55 30 - 2 48 6 -0.39 97 0 0 - 2 49 57 10 25 59.2 68 200 13 - 2 52 55 - 2 46 58 - 2 53 39 - 2 46 15 -0.39 98 0 0 - 2 47 37 10 26 2.9 67 202 12 - 2 50 36 - 2 44 38 - 2 51 19 - 2 43 55 -0.39 99 0 0 - 2 44 49 10 26 6.6 67 204 11 - 2 47 48 - 2 41 50 - 2 48 31 - 2 41 7 -0.39 100 0 0 - 2 41 33 10 26 10.3 66 206 10 - 2 44 32 - 2 38 34 - 2 45 15 - 2 37 50 -0.39 101 0 0 - 2 37 48 10 26 14.0 66 208 9 - 2 40 47 - 2 34 49 - 2 41 31 - 2 34 6 -0.39 102 0 0 - 2 33 36 10 26 17.6 65 210 8 - 2 36 35 - 2 30 37 - 2 37 18 - 2 29 53 -0.39 103 0 0 - 2 28 55 10 26 21.3 65 211 7 - 2 31 54 - 2 25 56 - 2 32 38 - 2 25 12 -0.39 104 0 0 - 2 23 46 10 26 24.9 64 213 6 - 2 26 46 - 2 20 47 - 2 27 29 - 2 20 3 -0.39 105 0 0 - 2 18 9 10 26 28.5 63 215 5 - 2 21 9 - 2 15 10 - 2 21 52 - 2 14 26 -0.39 106 0 0 - 2 12 4 10 26 32.1 63 216 4 - 2 15 4 - 2 9 5 - 2 15 47 - 2 8 21 -0.39 107 0 0 - 2 5 31 10 26 35.7 62 217 3 - 2 8 31 - 2 2 31 - 2 9 15 - 2 1 48 -0.39 108 0 0 - 1 58 30 10 26 39.2 61 219 2 - 2 1 30 - 1 55 30 - 2 2 14 - 1 54 47 -0.39 109 0 0 - 1 51 2 10 26 42.8 60 220 1 - 1 54 2 - 1 48 2 - 1 54 45 - 1 47 18 -0.39 110 0 0 - 1 43 5 10 26 46.3 60 221 0 - 1 46 5 - 1 40 5 - 1 46 49 - 1 39 21 -0.39 111 0 0 - 1 34 41 10 26 49.8 59 222 -1 - 1 37 42 - 1 31 41 - 1 38 25 - 1 30 57 -0.39 112 0 0 - 1 25 49 10 26 53.2 58 223 -2 - 1 28 50 - 1 22 49 - 1 29 34 - 1 22 5 -0.39 113 0 0 - 1 16 30 10 26 56.6 57 224 -3 - 1 19 31 - 1 13 29 - 1 20 15 - 1 12 45 -0.39 114 0 0 - 1 6 43 10 27 0.1 57 225 -4 - 1 9 45 - 1 3 42 - 1 10 28 - 1 2 59 -0.39 115 0 0 - 0 56 30 10 27 3.4 56 226 -5 - 0 59 31 - 0 53 28 - 1 0 15 - 0 52 44 -0.39 116 0 0 - 0 45 48 10 27 6.8 55 227 -6 - 0 48 50 - 0 42 47 - 0 49 34 - 0 42 3 -0.39 117 0 0 - 0 34 40 10 27 10.1 54 228 -7 - 0 37 42 - 0 31 38 - 0 38 26 - 0 30 54 -0.38 118 0 0 - 0 23 5 10 27 13.4 53 228 -8 - 0 26 7 - 0 20 3 - 0 26 51 - 0 19 19 -0.38 119 0 0 - 0 11 3 10 27 16.6 52 229 -9 - 0 14 5 - 0 8 1 - 0 14 49 - 0 7 17 -0.38 120 0 0 0 1 26 10 27 19.8 51 230 -10 - 0 1 37 0 4 28 - 0 2 21 0 5 12 -0.38 121 0 0 0 14 21 10 27 23.0 50 230 -11 0 11 18 0 17 24 0 10 34 0 18 8 -0.38 122 0 0 0 27 42 10 27 26.2 49 231 -12 0 24 39 0 30 45 0 23 55 0 31 30 -0.38 123 0 0 0 41 30 10 27 29.3 49 231 -13 0 38 27 0 44 33 0 37 42 0 45 18 -0.38 124 0 0 0 55 44 10 27 32.3 48 232 -15 0 52 40 0 58 47 0 51 56 0 59 32 -0.38 125 0 0 1 10 23 10 27 35.3 47 232 -16 1 7 19 1 13 27 1 6 35 1 14 12 -0.38 126 0 0 1 25 28 10 27 38.3 46 233 -17 1 22 24 1 28 32 1 21 39 1 29 17 -0.38 127 0 0 1 40 59 10 27 41.2 45 233 -18 1 37 54 1 44 3 1 37 9 1 44 48 -0.38 128 0 0 1 56 54 10 27 44.1 44 234 -19 1 53 49 1 59 59 1 53 4 2 0 44 -0.38 129 0 0 2 13 14 10 27 47.0 43 234 -20 2 10 9 2 16 20 2 9 25 2 17 4 -0.38 130 0 0 2 29 59 10 27 49.8 42 234 -21 2 26 54 2 33 5 2 26 9 2 33 50 -0.38 131 0 0 2 47 9 10 27 52.5 41 235 -22 2 44 3 2 50 15 2 43 18 2 51 0 -0.38 132 0 0 3 4 42 10 27 55.2 40 235 -23 3 1 36 3 7 49 3 0 51 3 8 34 -0.38 133 0 0 3 22 40 10 27 57.8 39 235 -24 3 19 33 3 25 46 3 18 48 3 26 31 -0.38 134 0 0 3 41 1 10 28 0.4 38 236 -25 3 37 54 3 44 7 3 37 9 3 44 53 -0.38 135 0 0 3 59 45 10 28 2.9 37 236 -26 3 56 38 4 2 52 3 55 52 4 3 37 -0.38 136 0 0 4 18 52 10 28 5.4 36 236 -27 4 15 44 4 21 59 4 14 59 4 22 44 -0.38 137 0 0 4 38 21 10 28 7.8 35 237 -28 4 35 13 4 41 29 4 34 28 4 42 14 -0.38 138 0 0 4 58 12 10 28 10.2 34 237 -29 4 55 4 5 1 21 4 54 19 5 2 6 -0.38 139 0 0 5 18 26 10 28 12.5 33 237 -30 5 15 17 5 21 34 5 14 32 5 22 20 -0.38 140 0 0 5 39 0 10 28 14.7 32 237 -31 5 35 52 5 42 9 5 35 6 5 42 55 -0.38 141 0 0 5 59 56 10 28 16.9 31 238 -32 5 56 47 6 3 5 5 56 1 6 3 51 -0.38 142 0 0 6 21 12 10 28 19.0 30 238 -33 6 18 2 6 24 21 6 17 17 6 25 7 -0.38 143 0 0 6 42 48 10 28 21.1 29 238 -34 6 39 38 6 45 58 6 38 52 6 46 44 -0.38 144 0 0 7 4 44 10 28 23.0 28 238 -35 7 1 34 7 7 54 7 0 48 7 8 40 -0.38 145 0 0 7 26 59 10 28 24.9 26 239 -36 7 23 48 7 30 9 7 23 2 7 30 56 -0.38 146 0 0 7 49 33 10 28 26.8 25 239 -37 7 46 22 7 52 43 7 45 36 7 53 30 -0.38 147 0 0 8 12 24 10 28 28.6 24 239 -38 8 9 13 8 15 36 8 8 27 8 16 22 -0.38 148 0 0 8 35 34 10 28 30.3 23 239 -39 8 32 22 8 38 45 8 31 36 8 39 32 -0.38 149 0 0 8 59 1 10 28 31.9 22 239 -41 8 55 49 9 2 12 8 55 2 9 2 59 -0.38 150 0 0 9 22 44 10 28 33.5 21 240 -42 9 19 32 9 25 56 9 18 45 9 26 43 -0.38 151 0 0 9 46 43 10 28 35.0 20 240 -43 9 43 31 9 49 56 9 42 44 9 50 42 -0.38 152 0 0 10 10 58 10 28 36.4 19 240 -44 10 7 45 10 14 11 10 6 58 10 14 57 -0.38 153 0 0 10 35 27 10 28 37.7 18 240 -45 10 32 14 10 38 40 10 31 27 10 39 27 -0.38 154 0 0 11 0 11 10 28 39.0 17 241 -46 10 56 58 11 3 25 10 56 11 11 4 11 -0.38 155 0 0 11 25 9 10 28 40.2 16 241 -47 11 21 55 11 28 22 11 21 8 11 29 9 -0.38 156 0 0 11 50 19 10 28 41.3 15 241 -48 11 47 5 11 53 33 11 46 18 11 54 20 -0.38 157 0 0 12 15 42 10 28 42.4 14 241 -49 12 12 28 12 18 56 12 11 41 12 19 43 -0.38 158 0 0 12 41 16 10 28 43.3 13 242 -50 12 38 2 12 44 31 12 37 15 12 45 18 -0.38 159 0 0 13 7 2 10 28 44.2 12 242 -51 13 3 47 13 10 17 13 3 0 13 11 4 -0.38 160 0 0 13 32 58 10 28 45.0 11 242 -51 13 29 43 13 36 13 13 28 56 13 37 1 -0.38 161 0 0 13 59 4 10 28 45.8 10 242 -52 13 55 49 14 2 19 13 55 1 14 3 7 -0.38 162 0 0 14 25 19 10 28 46.4 8 243 -53 14 22 3 14 28 34 14 21 16 14 29 22 -0.38 163 0 0 14 51 42 10 28 47.0 7 243 -54 14 48 26 14 54 58 14 47 39 14 55 45 -0.38 164 0 0 15 18 13 10 28 47.5 6 243 -55 15 14 57 15 21 29 15 14 9 15 22 16 -0.39 165 0 0 15 44 50 10 28 47.9 5 243 -56 15 41 34 15 48 6 15 40 46 15 48 54 -0.39 166 0 0 16 11 34 10 28 48.3 4 244 -57 16 8 18 16 14 50 16 7 30 16 15 38 -0.39 167 0 0 16 38 23 10 28 48.6 3 244 -58 16 35 7 16 41 40 16 34 19 16 42 27 -0.39 168 0 0 17 5 17 10 28 48.7 2 244 -59 17 2 0 17 8 34 17 1 13 17 9 22 -0.40 169 0 0 17 32 15 10 28 48.9 1 244 -60 17 28 58 17 35 32 17 28 11 17 36 20 -0.42 170 0 0 17 59 16 10 28 48.9 0 245 -61 17 55 59 .. .. .. 17 55 12 .. .. .. -3.72 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 331-130090 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 05 55.7745 DE: -23 54 36.033 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 05 55.7745 DE: -23 54 36.033 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.7 * B mag [mag]: 10.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1551) Argelander asteroid class: approx. diameter [km]: 10 approx. diameter ["]: 0.006 distance from Earth [AU]: 2.47210 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#52 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): 0.013", 0.000", 93.739° remarks: * orbital elements for (1551)Argelander : Mean anomaly = 320.2053988560 deg Arg. of pericenter = 232.8676820628 deg Long. of node = 107.2082209097 deg Inclination = 3.7604656358 deg Eccentricity = 0.0657105217 Semimajor axis = 2.3947575297 AU Perihelion dist = 2.2373967631 AU Mag: H = 12.18, G = 0.15 Epoch of elements : MJD 60600.43439091 TDT (2024 Oct 17.4344) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#522023Apr24,0.34,2024,10,17,10.425387,0.008641,0.359225,17.005662,-0.428053,0.005088,0.000046,-0.000001,0.000000 89.0593,-23.9087,19.94,-9.51,False UCAC4 331-130090,18.09882629,-23.9100092,10.79,10.71,10.67,0.0,0,,18.12385678,-23.9087108,6.34,5.94,0,0,0 1551,Argelander,17.05,10.245,2.4721,0,0,4.412,-1.52,,0.8,0 0,320.0899,2024,10,17,232.8677,107.2082,3.7605,0.06571,2.39476,2.23740,12.18,5.0,0.15 1.121,0.0127,0.0005,94,0.0007,Known errors,0.76,0,-1,-1 20241017_130090,60140.64 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:23 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org