IOTA/IOTA-ES occultation update for (2328) Robeson / UCAC4 480-013623 event on 2024 Dec 12, 16:04 UT Visible from Summary ------- On 2024 Dec 12 UT, the 12.1697600413672 km diameter asteroid (2328) Robeson will occult a 11.5 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 4.53 mag to 15.98 mag (the magnitude of the asteroid) for at most 1.240 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 Dec 12, 15:55 - 2024 Dec 12, 16:14 * geocentric midpoint of event [JD]: 2460657.17007333 * magnitude of target star: 11.47 * magnitude drop [mag]: 4.53 * estimated maximum duration [s]: 1.240 * Moon: 91 % sunlit, 46° distance * Sun: 162° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 14 * 1 sigma uncertainty interval [path widths]: +/- 0.44 * 1 sigma uncertainty interval [seconds]: +/- 2.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.030, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.030", 0.003", 90°) * approx speed of asteroid's shadow [km/s]: 9.8529 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 480-013623 by 2328 Robeson on 2024 Dec 12 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 30 0 0 19 39 34 16 14 18.7 0 84 -12 19 43 24 19 35 44 19 46 44 19 32 24 .... 31 0 0 19 45 56 16 14 18.5 1 84 -13 19 49 46 19 42 6 19 53 6 19 38 46 -0.38 32 0 0 19 52 29 16 14 18.1 2 85 -14 19 56 18 19 48 39 19 59 39 19 45 18 -0.46 33 0 0 19 59 12 16 14 17.6 3 85 -15 20 3 2 19 55 23 20 6 23 19 52 2 -0.49 34 0 0 20 6 7 16 14 16.8 4 85 -16 20 9 57 20 2 17 20 13 18 19 58 57 -0.50 35 0 0 20 13 13 16 14 15.8 5 86 -17 20 17 3 20 9 23 20 20 24 20 6 2 -0.51 36 0 0 20 20 29 16 14 14.7 6 86 -18 20 24 19 20 16 38 20 27 40 20 13 18 -0.52 37 0 0 20 27 55 16 14 13.3 7 86 -18 20 31 45 20 24 5 20 35 6 20 20 44 -0.52 38 0 0 20 35 31 16 14 11.7 8 87 -19 20 39 22 20 31 41 20 42 43 20 28 20 -0.53 39 0 0 20 43 18 16 14 10.0 9 87 -20 20 47 8 20 39 27 20 50 29 20 36 7 -0.53 40 0 0 20 51 14 16 14 8.0 10 87 -21 20 55 5 20 47 24 20 58 26 20 44 3 -0.53 41 0 0 20 59 20 16 14 5.9 11 88 -22 21 3 10 20 55 29 21 6 32 20 52 8 -0.54 42 0 0 21 7 35 16 14 3.5 12 88 -23 21 11 26 21 3 45 21 14 47 21 0 23 -0.54 43 0 0 21 16 0 16 14 1.0 12 88 -24 21 19 51 21 12 9 21 23 12 21 8 48 -0.54 44 0 0 21 24 33 16 13 58.3 13 89 -25 21 28 24 21 20 43 21 31 46 21 17 21 -0.54 45 0 0 21 33 16 16 13 55.4 14 89 -26 21 37 7 21 29 25 21 40 29 21 26 4 -0.54 46 0 0 21 42 7 16 13 52.3 15 90 -27 21 45 58 21 38 16 21 49 20 21 34 55 -0.54 47 0 0 21 51 7 16 13 49.1 16 90 -28 21 54 58 21 47 16 21 58 20 21 43 55 -0.54 48 0 0 22 0 15 16 13 45.6 17 90 -29 22 4 6 21 56 24 22 7 28 21 53 2 -0.54 49 0 0 22 9 31 16 13 42.0 18 91 -30 22 13 22 22 5 40 22 16 44 22 2 18 -0.54 50 0 0 22 18 55 16 13 38.2 19 91 -30 22 22 46 22 15 4 22 26 8 22 11 42 -0.54 51 0 0 22 28 27 16 13 34.2 20 92 -31 22 32 18 22 24 35 22 35 40 22 21 13 -0.54 52 0 0 22 38 5 16 13 30.1 21 92 -32 22 41 57 22 34 14 22 45 19 22 30 52 -0.54 53 0 0 22 47 52 16 13 25.8 22 93 -33 22 51 43 22 44 0 22 55 6 22 40 38 -0.55 54 0 0 22 57 45 16 13 21.3 23 93 -34 23 1 37 22 53 53 23 4 59 22 50 31 -0.55 55 0 0 23 7 45 16 13 16.7 23 94 -35 23 11 37 23 3 53 23 14 59 23 0 31 -0.55 56 0 0 23 17 52 16 13 11.8 24 94 -36 23 21 44 23 14 0 23 25 6 23 10 38 -0.55 57 0 0 23 28 5 16 13 6.9 25 95 -37 23 31 57 23 24 13 23 35 19 23 20 51 -0.55 58 0 0 23 38 24 16 13 1.8 26 95 -38 23 42 16 23 34 32 23 45 39 23 31 10 -0.55 59 0 0 23 48 49 16 12 56.5 27 96 -39 23 52 41 23 44 57 23 56 4 23 41 35 -0.55 60 0 0 23 59 20 16 12 51.0 28 96 -40 24 3 13 23 55 28 24 6 35 23 52 6 -0.55 61 0 0 24 9 57 16 12 45.5 29 97 -41 24 13 49 24 6 5 24 17 12 24 2 42 -0.55 62 0 0 24 20 39 16 12 39.7 30 97 -41 24 24 31 24 16 46 24 27 54 24 13 24 -0.55 63 0 0 24 31 25 16 12 33.9 30 98 -42 24 35 18 24 27 33 24 38 41 24 24 10 -0.55 64 0 0 24 42 17 16 12 27.9 31 98 -43 24 46 10 24 38 25 24 49 33 24 35 2 -0.55 65 0 0 24 53 14 16 12 21.7 32 99 -44 24 57 6 24 49 21 25 0 29 24 45 58 -0.55 66 0 0 25 4 14 16 12 15.4 33 100 -45 25 8 7 25 0 22 25 11 30 24 56 59 -0.55 67 0 0 25 15 19 16 12 9.0 34 100 -46 25 19 12 25 11 27 25 22 35 25 8 4 -0.55 68 0 0 25 26 28 16 12 2.5 35 101 -47 25 30 21 25 22 36 25 33 45 25 19 13 -0.55 69 0 0 25 37 41 16 11 55.8 35 102 -48 25 41 34 25 33 48 25 44 57 25 30 25 -0.55 70 0 0 25 48 57 16 11 49.0 36 102 -49 25 52 50 25 45 4 25 56 14 25 41 41 -0.55 71 0 0 26 0 17 16 11 42.1 37 103 -49 26 4 10 25 56 24 26 7 33 25 53 1 -0.55 72 0 0 26 11 39 16 11 35.0 38 104 -50 26 15 32 26 7 46 26 18 56 26 4 23 -0.55 73 0 0 26 23 5 16 11 27.9 39 104 -51 26 26 58 26 19 12 26 30 21 26 15 48 -0.55 74 0 0 26 34 33 16 11 20.6 39 105 -52 26 38 26 26 30 39 26 41 50 26 27 16 -0.55 75 0 0 26 46 3 16 11 13.2 40 106 -53 26 49 56 26 42 10 26 53 20 26 38 46 -0.55 76 0 0 26 57 36 16 11 5.8 41 107 -54 27 1 29 26 53 42 27 4 53 26 50 19 -0.55 77 0 0 27 9 10 16 10 58.2 42 108 -55 27 13 4 27 5 17 27 16 28 27 1 53 -0.55 78 0 0 27 20 47 16 10 50.5 43 108 -56 27 24 40 27 16 53 27 28 4 27 13 30 -0.55 79 0 0 27 32 24 16 10 42.7 43 109 -56 27 36 18 27 28 31 27 39 42 27 25 7 -0.55 80 0 0 27 44 3 16 10 34.9 44 110 -57 27 47 57 27 40 10 27 51 21 27 36 46 -0.55 81 0 0 27 55 44 16 10 26.9 45 111 -58 27 59 37 27 51 50 28 3 1 27 48 26 -0.55 82 0 0 28 7 24 16 10 18.9 45 112 -59 28 11 18 28 3 31 28 14 42 28 0 7 -0.55 83 0 0 28 19 6 16 10 10.7 46 113 -60 28 22 59 28 15 12 28 26 24 28 11 49 -0.55 84 0 0 28 30 48 16 10 2.5 47 114 -61 28 34 41 28 26 54 28 38 5 28 23 30 -0.55 85 0 0 28 42 30 16 9 54.3 48 115 -62 28 46 23 28 38 36 28 49 48 28 35 12 -0.55 86 0 0 28 54 12 16 9 45.9 48 116 -62 28 58 6 28 50 18 29 1 30 28 46 54 -0.55 87 0 0 29 5 54 16 9 37.5 49 117 -63 29 9 48 29 2 0 29 13 12 28 58 36 -0.55 88 0 0 29 17 35 16 9 29.0 50 118 -64 29 21 29 29 13 42 29 24 53 29 10 18 -0.56 89 0 0 29 29 16 16 9 20.4 50 119 -65 29 33 10 29 25 22 29 36 34 29 21 59 -0.56 90 0 0 29 40 56 16 9 11.8 51 121 -66 29 44 50 29 37 2 29 48 14 29 33 39 -0.56 91 0 0 29 52 35 16 9 3.1 51 122 -66 29 56 29 29 48 41 29 59 53 29 45 17 -0.56 92 0 0 30 4 13 16 8 54.4 52 123 -67 30 8 7 30 0 19 30 11 31 29 56 55 -0.56 93 0 0 30 15 49 16 8 45.6 53 124 -68 30 19 43 30 11 55 30 23 7 30 8 31 -0.56 94 0 0 30 27 23 16 8 36.8 53 126 -69 30 31 17 30 23 30 30 34 42 30 20 6 -0.56 95 0 0 30 38 56 16 8 27.9 54 127 -69 30 42 50 30 35 2 30 46 14 30 31 38 -0.56 96 0 0 30 50 27 16 8 19.0 54 129 -70 30 54 21 30 46 33 30 57 45 30 43 9 -0.56 97 0 0 31 1 55 16 8 10.0 55 130 -71 31 5 49 30 58 1 31 9 13 30 54 37 -0.56 98 0 0 31 13 21 16 8 1.0 55 131 -72 31 17 15 31 9 27 31 20 39 31 6 3 -0.56 99 0 0 31 24 44 16 7 52.0 56 133 -72 31 28 38 31 20 50 31 32 2 31 17 26 -0.56 100 0 0 31 36 4 16 7 42.9 56 134 -73 31 39 58 31 32 10 31 43 22 31 28 46 -0.56 101 0 0 31 47 21 16 7 33.8 57 136 -74 31 51 15 31 43 27 31 54 39 31 40 4 -0.56 102 0 0 31 58 35 16 7 24.7 57 138 -74 32 2 29 31 54 41 32 5 53 31 51 18 -0.56 103 0 0 32 9 46 16 7 15.6 58 139 -75 32 13 40 32 5 52 32 17 4 32 2 28 -0.56 104 0 0 32 20 53 16 7 6.4 58 141 -75 32 24 47 32 16 59 32 28 11 32 13 35 -0.56 105 0 0 32 31 56 16 6 57.3 58 143 -76 32 35 50 32 28 2 32 39 14 32 24 39 -0.56 106 0 0 32 42 55 16 6 48.1 59 145 -76 32 46 49 32 39 2 32 50 13 32 35 38 -0.56 107 0 0 32 53 51 16 6 38.9 59 146 -77 32 57 44 32 49 57 33 1 8 32 46 33 -0.56 108 0 0 33 4 41 16 6 29.7 59 148 -77 33 8 35 33 0 48 33 11 59 32 57 24 -0.56 109 0 0 33 15 28 16 6 20.5 59 150 -78 33 19 22 33 11 34 33 22 46 33 8 11 -0.56 110 0 0 33 26 10 16 6 11.3 60 152 -78 33 30 3 33 22 16 33 33 27 33 18 53 -0.56 111 0 0 33 36 47 16 6 2.1 60 154 -78 33 40 40 33 32 53 33 44 4 33 29 30 -0.56 112 0 0 33 47 19 16 5 52.9 60 156 -78 33 51 12 33 43 25 33 54 36 33 40 2 -0.56 113 0 0 33 57 46 16 5 43.7 60 158 -78 34 1 39 33 53 53 34 5 3 33 50 29 -0.56 114 0 0 34 8 8 16 5 34.5 60 160 -79 34 12 1 34 4 14 34 15 25 34 0 51 -0.56 115 0 0 34 18 24 16 5 25.3 60 162 -79 34 22 17 34 14 31 34 25 41 34 11 7 -0.56 116 0 0 34 28 35 16 5 16.1 61 164 -78 34 32 28 34 24 42 34 35 52 34 21 18 -0.56 117 0 0 34 38 40 16 5 7.0 61 165 -78 34 42 33 34 34 47 34 45 57 34 31 23 -0.56 118 0 0 34 48 39 16 4 57.9 61 167 -78 34 52 32 34 44 46 34 55 56 34 41 23 -0.56 119 0 0 34 58 32 16 4 48.7 61 169 -78 35 2 26 34 54 39 35 5 49 34 51 16 -0.56 120 0 0 35 8 20 16 4 39.7 61 171 -78 35 12 13 35 4 27 35 15 36 35 1 3 -0.56 121 0 0 35 18 0 16 4 30.6 60 173 -77 35 21 53 35 14 8 35 25 17 35 10 45 -0.56 122 0 0 35 27 35 16 4 21.5 60 175 -77 35 31 28 35 23 42 35 34 51 35 20 19 -0.56 123 0 0 35 37 3 16 4 12.5 60 177 -77 35 40 56 35 33 10 35 44 19 35 29 47 -0.56 124 0 0 35 46 24 16 4 3.5 60 179 -76 35 50 17 35 42 32 35 53 40 35 39 9 -0.57 125 0 0 35 55 39 16 3 54.6 60 181 -76 35 59 32 35 51 46 36 2 55 35 48 24 -0.57 126 0 0 36 4 47 16 3 45.7 60 183 -75 36 8 39 36 0 54 36 12 3 35 57 32 -0.57 127 0 0 36 13 48 16 3 36.8 60 185 -75 36 17 40 36 9 55 36 21 3 36 6 32 -0.57 128 0 0 36 22 41 16 3 28.0 59 187 -74 36 26 34 36 18 49 36 29 57 36 15 26 -0.57 129 0 0 36 31 27 16 3 19.2 59 189 -73 36 35 20 36 27 35 36 38 43 36 24 13 -0.57 130 0 0 36 40 7 16 3 10.4 59 191 -73 36 43 59 36 36 14 36 47 22 36 32 52 -0.57 131 0 0 36 48 38 16 3 1.7 59 192 -72 36 52 30 36 44 46 36 55 53 36 41 24 -0.57 132 0 0 36 57 2 16 2 53.0 58 194 -71 37 0 54 36 53 10 37 4 17 36 49 48 -0.57 133 0 0 37 5 19 16 2 44.4 58 196 -71 37 9 11 37 1 27 37 12 33 36 58 4 -0.57 134 0 0 37 13 27 16 2 35.8 58 198 -70 37 17 19 37 9 35 37 20 42 37 6 13 -0.57 135 0 0 37 21 28 16 2 27.3 57 199 -69 37 25 20 37 17 36 37 28 42 37 14 14 -0.57 136 0 0 37 29 21 16 2 18.8 57 201 -69 37 33 12 37 25 29 37 36 35 37 22 7 -0.57 137 0 0 37 37 5 16 2 10.4 56 202 -68 37 40 57 37 33 14 37 44 19 37 29 52 -0.57 138 0 0 37 44 42 16 2 2.1 56 204 -67 37 48 33 37 40 50 37 51 56 37 37 29 -0.57 139 0 0 37 52 10 16 1 53.8 56 206 -67 37 56 2 37 48 19 37 59 24 37 44 57 -0.57 140 0 0 37 59 30 16 1 45.5 55 207 -66 38 3 22 37 55 39 38 6 44 37 52 17 -0.57 141 0 0 38 6 42 16 1 37.3 55 209 -65 38 10 33 38 2 51 38 13 55 37 59 29 -0.57 142 0 0 38 13 45 16 1 29.2 54 210 -65 38 17 36 38 9 54 38 20 58 38 6 32 -0.57 143 0 0 38 20 40 16 1 21.2 54 211 -64 38 24 31 38 16 49 38 27 53 38 13 27 -0.57 144 0 0 38 27 26 16 1 13.2 53 213 -63 38 31 17 38 23 35 38 34 39 38 20 14 -0.57 145 0 0 38 34 3 16 1 5.3 53 214 -62 38 37 54 38 30 12 38 41 16 38 26 51 -0.57 146 0 0 38 40 31 16 0 57.4 52 215 -62 38 44 22 38 36 41 38 47 44 38 33 19 -0.57 147 0 0 38 46 51 16 0 49.6 52 217 -61 38 50 42 38 43 0 38 54 3 38 39 39 -0.57 148 0 0 38 53 2 16 0 41.9 51 218 -60 38 56 52 38 49 11 39 0 14 38 45 50 -0.57 149 0 0 38 59 3 16 0 34.2 51 219 -60 39 2 54 38 55 13 39 6 15 38 51 52 -0.57 150 0 0 39 4 56 16 0 26.6 50 221 -59 39 8 47 39 1 6 39 12 8 38 57 45 -0.57 151 0 0 39 10 39 16 0 19.1 49 222 -58 39 14 30 39 6 49 39 17 51 39 3 28 -0.57 152 0 0 39 16 14 16 0 11.7 49 223 -57 39 20 4 39 12 24 39 23 25 39 9 3 -0.57 153 0 0 39 21 39 16 0 4.3 48 224 -57 39 25 29 39 17 49 39 28 50 39 14 28 -0.57 154 0 0 39 26 55 15 59 57.1 48 225 -56 39 30 45 39 23 5 39 34 6 39 19 44 -0.57 155 0 0 39 32 1 15 59 49.9 47 226 -55 39 35 51 39 28 11 39 39 12 39 24 51 -0.57 156 0 0 39 36 58 15 59 42.7 47 227 -54 39 40 48 39 33 8 39 44 9 39 29 48 -0.57 157 0 0 39 41 46 15 59 35.7 46 229 -54 39 45 36 39 37 56 39 48 56 39 34 35 -0.57 158 0 0 39 46 24 15 59 28.7 45 230 -53 39 50 13 39 42 34 39 53 34 39 39 14 -0.57 159 0 0 39 50 52 15 59 21.8 45 231 -52 39 54 42 39 47 3 39 58 2 39 43 42 -0.57 160 0 0 39 55 11 15 59 15.0 44 232 -51 39 59 1 39 51 21 40 2 21 39 48 1 -0.57 161 0 0 39 59 20 15 59 8.3 43 233 -51 40 3 10 39 55 31 40 6 30 39 52 11 -0.57 162 0 0 40 3 20 15 59 1.7 43 234 -50 40 7 9 39 59 30 40 10 30 39 56 10 -0.57 163 0 0 40 7 9 15 58 55.1 42 235 -49 40 10 59 40 3 20 40 14 19 40 0 0 -0.57 164 0 0 40 10 50 15 58 48.7 41 236 -48 40 14 39 40 7 0 40 17 59 40 3 40 -0.57 165 0 0 40 14 20 15 58 42.3 41 237 -48 40 18 9 40 10 31 40 21 29 40 7 11 -0.57 166 0 0 40 17 40 15 58 36.0 40 237 -47 40 21 29 40 13 51 40 24 49 40 10 31 -0.57 167 0 0 40 20 50 15 58 29.8 40 238 -46 40 24 40 40 17 1 40 28 0 40 13 42 -0.57 168 0 0 40 23 51 15 58 23.7 39 239 -45 40 27 40 40 20 2 40 31 0 40 16 42 -0.57 169 0 0 40 26 42 15 58 17.7 38 240 -45 40 30 31 40 22 53 40 33 51 40 19 33 -0.57 170 0 0 40 29 22 15 58 11.7 38 241 -44 40 33 11 40 25 33 40 36 31 40 22 14 -0.57 171 0 0 40 31 53 15 58 5.9 37 242 -43 40 35 41 40 28 4 40 39 1 40 24 44 -0.57 172 0 0 40 34 13 15 58 0.2 36 243 -42 40 38 2 40 30 24 40 41 22 40 27 5 -0.57 173 0 0 40 36 23 15 57 54.5 36 244 -42 40 40 12 40 32 35 40 43 32 40 29 15 -0.57 174 0 0 40 38 24 15 57 49.0 35 245 -41 40 42 12 40 34 35 40 45 32 40 31 16 -0.57 175 0 0 40 40 14 15 57 43.5 34 245 -40 40 44 3 40 36 25 40 47 22 40 33 6 -0.57 176 0 0 40 41 54 15 57 38.1 33 246 -40 40 45 42 40 38 5 40 49 2 40 34 46 -0.57 177 0 0 40 43 24 15 57 32.9 33 247 -39 40 47 12 40 39 35 40 50 32 40 36 16 -0.57 178 0 0 40 44 43 15 57 27.7 32 248 -38 40 48 32 40 40 55 40 51 51 40 37 35 -0.57 179 0 0 40 45 52 15 57 22.6 31 249 -37 40 49 41 40 42 4 40 53 1 40 38 45 -0.57 180 0 0 40 46 51 15 57 17.7 31 249 -37 40 50 40 40 43 3 40 54 0 40 39 44 -0.57 -179 0 0 40 47 40 15 57 12.8 30 250 -36 40 51 29 40 43 52 40 54 48 40 40 33 -0.57 -178 0 0 40 48 19 15 57 8.0 29 251 -35 40 52 7 40 44 30 40 55 27 40 41 11 -0.57 -177 0 0 40 48 47 15 57 3.4 29 252 -34 40 52 35 40 44 59 40 55 55 40 41 39 -0.57 -176 0 0 40 49 5 15 56 58.8 28 252 -34 40 52 53 40 45 16 40 56 13 40 41 57 -0.57 -175 0 0 40 49 12 15 56 54.4 27 253 -33 40 53 1 40 45 24 40 56 20 40 42 5 -0.57 -174 0 0 40 49 9 15 56 50.0 26 254 -32 40 52 58 40 45 21 40 56 17 40 42 2 -0.57 -173 0 0 40 48 56 15 56 45.8 26 255 -31 40 52 45 40 45 8 40 56 4 40 41 49 -0.57 -172 0 0 40 48 33 15 56 41.6 25 255 -31 40 52 21 40 44 44 40 55 40 40 41 25 -0.57 -171 0 0 40 47 58 15 56 37.6 24 256 -30 40 51 47 40 44 10 40 55 6 40 40 51 -0.57 -170 0 0 40 47 14 15 56 33.7 24 257 -29 40 51 2 40 43 26 40 54 22 40 40 7 -0.57 -169 0 0 40 46 19 15 56 29.8 23 258 -28 40 50 8 40 42 31 40 53 27 40 39 12 -0.57 -168 0 0 40 45 14 15 56 26.1 22 258 -28 40 49 2 40 41 26 40 52 22 40 38 7 -0.57 -167 0 0 40 43 58 15 56 22.5 21 259 -27 40 47 47 40 40 10 40 51 6 40 36 51 -0.57 -166 0 0 40 42 32 15 56 19.1 21 260 -26 40 46 21 40 38 44 40 49 40 40 35 25 -0.57 -165 0 0 40 40 55 15 56 15.7 20 260 -25 40 44 44 40 37 7 40 48 3 40 33 48 -0.57 -164 0 0 40 39 8 15 56 12.4 19 261 -25 40 42 57 40 35 20 40 46 16 40 32 1 -0.57 -163 0 0 40 37 11 15 56 9.3 18 262 -24 40 41 0 40 33 23 40 44 19 40 30 3 -0.57 -162 0 0 40 35 3 15 56 6.3 18 262 -23 40 38 52 40 31 15 40 42 11 40 27 55 -0.57 -161 0 0 40 32 45 15 56 3.4 17 263 -22 40 36 33 40 28 56 40 39 53 40 25 37 -0.57 -160 0 0 40 30 16 15 56 0.6 16 264 -22 40 34 4 40 26 27 40 37 24 40 23 8 -0.57 -159 0 0 40 27 37 15 55 57.9 15 265 -21 40 31 25 40 23 48 40 34 45 40 20 29 -0.57 -158 0 0 40 24 47 15 55 55.3 15 265 -20 40 28 36 40 20 58 40 31 55 40 17 39 -0.58 -157 0 0 40 21 47 15 55 52.9 14 266 -19 40 25 35 40 17 58 40 28 55 40 14 39 -0.58 -156 0 0 40 18 36 15 55 50.6 13 266 -19 40 22 25 40 14 47 40 25 45 40 11 28 -0.58 -155 0 0 40 15 15 15 55 48.4 12 267 -18 40 19 4 40 11 26 40 22 24 40 8 7 -0.58 -154 0 0 40 11 44 15 55 46.3 12 268 -17 40 15 33 40 7 55 40 18 52 40 4 35 -0.58 -153 0 0 40 8 2 15 55 44.4 11 268 -16 40 11 51 40 4 13 40 15 11 40 0 54 -0.58 -152 0 0 40 4 10 15 55 42.5 10 269 -16 40 7 59 40 0 21 40 11 19 39 57 1 -0.58 -151 0 0 40 0 7 15 55 40.8 9 270 -15 40 3 56 39 56 18 40 7 16 39 52 59 -0.58 -150 0 0 39 55 54 15 55 39.3 9 270 -14 39 59 43 39 52 5 40 3 3 39 48 46 -0.59 -149 0 0 39 51 31 15 55 37.8 8 271 -13 39 55 20 39 47 42 39 58 40 39 44 22 -0.59 -148 0 0 39 46 57 15 55 36.5 7 272 -13 39 50 47 39 43 8 39 54 7 39 39 48 -0.59 -147 0 0 39 42 13 15 55 35.3 6 272 -12 39 46 3 39 38 24 39 49 23 39 35 4 -0.60 -146 0 0 39 37 19 15 55 34.3 6 273 -11 39 41 9 39 33 30 39 44 29 39 30 10 -0.60 -145 0 0 39 32 15 15 55 33.4 5 274 -11 39 36 4 39 28 26 39 39 25 39 25 6 -0.61 -144 0 0 39 27 0 15 55 32.6 4 274 -10 39 30 50 39 23 11 39 34 10 39 19 51 -0.62 -143 0 0 39 21 36 15 55 31.9 3 275 -9 39 25 25 39 17 46 39 28 46 39 14 26 -0.64 -142 0 0 39 16 1 15 55 31.4 3 276 -8 39 19 50 39 12 11 39 23 11 39 8 51 -0.66 -141 0 0 39 10 16 15 55 31.0 2 276 -8 39 14 5 39 6 26 39 17 26 39 3 6 -0.71 -140 0 0 39 4 21 15 55 30.8 1 277 -7 39 8 10 39 0 31 39 11 31 38 57 10 -0.84 -139 0 0 38 58 15 15 55 30.7 0 277 -6 39 2 5 38 54 26 39 5 26 38 51 5 -2.14 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 480-013623 * constellation : Orion * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 47 27.9506 DE: +05 51 23.665 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 47 27.9506 DE: +05 51 23.664 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 11.5 * B mag [mag]: 12.3 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2328) Robeson asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.013 distance from Earth [AU]: 1.27180 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#49 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): 0.030", 0.003", 89.551° remarks: * orbital elements for (2328)Robeson : Mean anomaly = 297.5744472165 deg Arg. of pericenter = 340.4219233689 deg Long. of node = 182.0880991142 deg Inclination = 10.0092611725 deg Eccentricity = 0.1452554073 Semimajor axis = 2.3423379210 AU Perihelion dist = 2.0021006724 AU Mag: H = 13.15, G = 0.15 Epoch of elements : MJD 60656.67007446 TDT (2024 Dec 12.6701) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#492023Apr24,1.24,2024,12,12,16.081760,-0.082231,0.482078,-5.482062,-0.935085,-0.000598,0.001681,0.000001,0.000000 124.1326,5.8664,-62.72,-23.14,False UCAC4 480-013623,5.79109739,5.8565736,12.34,11.47,11.00,0.1,0,,5.81371432,5.8664117,4.52,4.54,0,0,0 2328,Robeson,15.98,12.262,1.2718,0,0,-2.540,-6.46,,1.0,0 0,297.3902,2024,12,12,340.4219,182.0881,10.0093,0.14526,2.34234,2.00210,13.15,5.0,0.15 1.436,0.0297,0.0033,90,0.0058,Known errors,1.80,0,-1,-1 20241212_013623,60140.74 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:42 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org