IOTA/IOTA-ES occultation update for (268) Adorea / UCAC4 381-069012 event on 2023 May 30, 05:39 UT Visible from SE Canada,USA Summary ------- On 2023 May 30 UT, the 144.7 km diameter asteroid (268) Adorea will occult a 12.1 mag star in the constellation Libra for observers along a path across SE Canada,USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.97 mag to 12.54 mag (the magnitude of the asteroid) for at most 16.240 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: 100 * date and approx. time of event: 2023 May 30, 05:32 - 2023 May 30, 05:46 * geocentric midpoint of event [JD]: 2460094.73572034 * magnitude of target star: 12.14 * magnitude drop [mag]: 0.97 * estimated maximum duration [s]: 16.240 * Moon: 74 % sunlit, 41° distance * Sun: 159° distance * rough path description: SE Canada,USA The occultation path -------------------- * approximate projected width [km]: 266 * 1 sigma uncertainty interval [path widths]: +/- 0.04 * 1 sigma uncertainty interval [seconds]: +/- 5.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.035, +/- 0.010) * 1 sigma uncertainty ellipse (major, minor, PA): (0.036", 0.001", 107°) * approx speed of asteroid's shadow [km/s]: 8.9083 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 381-069012 by 268 Adorea on 2023 May 30 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 -167 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 62 56 55 .. .. .. 62 50 42 .... -166 0 0 64 5 25 5 45 51.7 0 124 15 .. .. .. 62 39 27 .. .. .. 62 33 14 .... -165 0 0 63 47 49 5 45 51.6 1 125 14 .. .. .. 62 21 47 .. .. .. 62 15 33 -0.66 -164 0 0 63 29 59 5 45 51.5 1 126 14 65 0 17 62 3 54 65 7 10 61 57 40 -1.05 -163 0 0 63 11 56 5 45 51.1 2 126 13 64 42 18 61 45 49 64 49 11 61 39 35 -1.21 -162 0 0 62 53 41 5 45 50.7 2 127 13 64 24 5 61 27 31 64 30 58 61 21 17 -1.30 -161 0 0 62 35 14 5 45 50.1 3 128 12 64 5 39 61 9 3 64 12 32 61 2 49 -1.35 -160 0 0 62 16 34 5 45 49.4 3 129 11 63 47 0 60 50 23 63 53 54 60 44 9 -1.39 -159 0 0 61 57 44 5 45 48.6 4 130 11 63 28 10 60 31 33 63 35 3 60 25 19 -1.41 -158 0 0 61 38 43 5 45 47.6 5 131 10 63 9 7 60 12 33 63 16 1 60 6 19 -1.43 -157 0 0 61 19 31 5 45 46.5 5 132 10 62 49 54 59 53 23 62 56 47 59 47 9 -1.45 -156 0 0 61 0 9 5 45 45.3 6 133 9 62 30 29 59 34 4 62 37 22 59 27 50 -1.46 -155 0 0 60 40 38 5 45 43.9 6 134 9 62 10 55 59 14 36 62 17 47 59 8 23 -1.48 -154 0 0 60 20 59 5 45 42.4 7 134 8 61 51 10 58 55 0 61 58 3 58 48 47 -1.48 -153 0 0 60 1 10 5 45 40.7 7 135 7 61 31 17 58 35 17 61 38 9 58 29 4 -1.49 -152 0 0 59 41 14 5 45 38.8 8 136 7 61 11 15 58 15 26 61 18 6 58 9 13 -1.50 -151 0 0 59 21 11 5 45 36.8 9 137 6 60 51 5 57 55 29 60 57 56 57 49 16 -1.51 -150 0 0 59 1 1 5 45 34.6 9 138 6 60 30 47 57 35 25 60 37 38 57 29 13 -1.51 -149 0 0 58 40 45 5 45 32.3 10 139 5 60 10 23 57 15 16 60 17 12 57 9 5 -1.51 -148 0 0 58 20 23 5 45 29.8 10 140 4 59 49 52 56 55 3 59 56 41 56 48 52 -1.52 -147 0 0 57 59 57 5 45 27.1 11 141 4 59 29 16 56 34 45 59 36 4 56 28 35 -1.52 -146 0 0 57 39 26 5 45 24.3 12 141 3 59 8 35 56 14 23 59 15 23 56 8 14 -1.53 -145 0 0 57 18 52 5 45 21.3 12 142 3 58 47 50 55 53 58 58 54 37 55 47 50 -1.53 -144 0 0 56 58 15 5 45 18.1 13 143 2 58 27 1 55 33 31 58 33 47 55 27 23 -1.53 -143 0 0 56 37 35 5 45 14.7 13 144 1 58 6 10 55 13 2 58 12 54 55 6 55 -1.53 -142 0 0 56 16 54 5 45 11.2 14 145 1 57 45 16 54 52 32 57 51 59 54 46 26 -1.54 -141 0 0 55 56 12 5 45 7.5 15 146 0 57 24 20 54 32 2 57 31 3 54 25 56 -1.54 -140 0 0 55 35 29 5 45 3.6 15 147 -1 57 3 24 54 11 31 57 10 6 54 5 26 -1.54 -139 0 0 55 14 47 5 44 59.6 16 148 -1 56 42 28 53 51 1 56 49 8 53 44 57 -1.54 -138 0 0 54 54 6 5 44 55.4 16 148 -2 56 21 32 53 30 33 56 28 11 53 24 30 -1.54 -137 0 0 54 33 26 5 44 51.0 17 149 -3 56 0 37 53 10 6 56 7 15 53 4 4 -1.55 -136 0 0 54 12 48 5 44 46.4 18 150 -3 55 39 44 52 49 42 55 46 21 52 43 41 -1.55 -135 0 0 53 52 14 5 44 41.7 18 151 -4 55 18 54 52 29 22 55 25 29 52 23 21 -1.55 -134 0 0 53 31 43 5 44 36.8 19 152 -5 54 58 7 52 9 5 55 4 41 52 3 6 -1.55 -133 0 0 53 11 16 5 44 31.7 19 153 -5 54 37 24 51 48 53 54 43 57 51 42 54 -1.55 -132 0 0 52 50 54 5 44 26.4 20 154 -6 54 16 45 51 28 45 54 23 17 51 22 48 -1.55 -131 0 0 52 30 38 5 44 21.0 20 155 -6 53 56 12 51 8 44 54 2 42 51 2 47 -1.55 -130 0 0 52 10 28 5 44 15.4 21 156 -7 53 35 45 50 48 48 53 42 14 50 42 53 -1.55 -129 0 0 51 50 24 5 44 9.6 22 157 -8 53 15 24 50 29 0 53 21 52 50 23 6 -1.55 -128 0 0 51 30 28 5 44 3.7 22 158 -8 52 55 11 50 9 19 53 1 37 50 3 26 -1.55 -127 0 0 51 10 40 5 43 57.6 23 159 -9 52 35 5 49 49 46 52 41 30 49 43 54 -1.55 -126 0 0 50 51 0 5 43 51.4 23 159 -10 52 15 8 49 30 22 52 21 31 49 24 31 -1.55 -125 0 0 50 31 29 5 43 45.0 24 160 -10 51 55 20 49 11 7 52 1 42 49 5 17 -1.56 -124 0 0 50 12 9 5 43 38.4 24 161 -11 51 35 41 48 52 1 51 42 2 48 46 12 -1.56 -123 0 0 49 52 58 5 43 31.7 25 162 -12 51 16 13 48 33 6 51 22 32 48 27 19 -1.56 -122 0 0 49 33 58 5 43 24.9 25 163 -12 50 56 56 48 14 22 51 3 14 48 8 36 -1.56 -121 0 0 49 15 10 5 43 17.9 26 164 -13 50 37 50 47 55 49 50 44 6 47 50 4 -1.56 -120 0 0 48 56 33 5 43 10.8 26 165 -13 50 18 56 47 37 28 50 25 11 47 31 44 -1.56 -119 0 0 48 38 9 5 43 3.5 27 166 -14 50 0 14 47 19 20 50 6 28 47 13 36 -1.56 -118 0 0 48 19 58 5 42 56.1 27 167 -15 49 41 46 47 1 24 49 47 58 46 55 41 -1.56 -117 0 0 48 2 0 5 42 48.6 27 168 -15 49 23 31 46 43 41 49 29 42 46 38 0 -1.56 -116 0 0 47 44 16 5 42 40.9 28 169 -16 49 5 30 46 26 12 49 11 40 46 20 32 -1.56 -115 0 0 47 26 47 5 42 33.2 28 170 -16 48 47 44 46 8 57 48 53 52 46 3 18 -1.56 -114 0 0 47 9 32 5 42 25.3 29 171 -17 48 30 12 45 51 57 48 36 19 45 46 19 -1.56 -113 0 0 46 52 32 5 42 17.3 29 172 -17 48 12 56 45 35 13 48 19 2 45 29 35 -1.56 -112 0 0 46 35 49 5 42 9.2 29 174 -18 47 55 56 45 18 43 48 2 0 45 13 7 -1.56 -111 0 0 46 19 21 5 42 1.0 30 175 -18 47 39 12 45 2 30 47 45 15 44 56 55 -1.56 -110 0 0 46 3 10 5 41 52.7 30 176 -19 47 22 46 44 46 33 47 28 47 44 40 59 -1.56 -109 0 0 45 47 16 5 41 44.3 30 177 -19 47 6 36 44 30 53 47 12 36 44 25 20 -1.56 -108 0 0 45 31 39 5 41 35.8 31 178 -20 46 50 44 44 15 30 46 56 43 44 9 57 -1.56 -107 0 0 45 16 20 5 41 27.3 31 179 -20 46 35 9 44 0 24 46 41 7 43 54 52 -1.56 -106 0 0 45 1 19 5 41 18.6 31 180 -21 46 19 54 43 45 36 46 25 51 43 40 6 -1.56 -105 0 0 44 46 36 5 41 9.9 31 181 -21 46 4 56 43 31 6 46 10 52 43 25 37 -1.56 -104 0 0 44 32 12 5 41 1.1 32 182 -22 45 50 18 43 16 55 45 56 13 43 11 26 -1.56 -103 0 0 44 18 7 5 40 52.3 32 183 -22 45 36 0 43 3 2 45 41 53 42 57 35 -1.56 -102 0 0 44 4 22 5 40 43.4 32 184 -23 45 22 1 42 49 29 45 27 53 42 44 2 -1.56 -101 0 0 43 50 56 5 40 34.5 32 186 -23 45 8 22 42 36 15 45 14 13 42 30 49 -1.56 -100 0 0 43 37 50 5 40 25.5 32 187 -23 44 55 3 42 23 21 45 0 54 42 17 56 -1.56 - 99 0 0 43 25 5 5 40 16.4 32 188 -24 44 42 5 42 10 47 44 47 55 42 5 22 -1.56 - 98 0 0 43 12 40 5 40 7.4 32 189 -24 44 29 28 41 58 33 44 35 17 41 53 9 -1.56 - 97 0 0 43 0 36 5 39 58.3 33 190 -25 44 17 12 41 46 39 44 23 0 41 41 16 -1.56 - 96 0 0 42 48 52 5 39 49.1 33 191 -25 44 5 18 41 35 6 44 11 4 41 29 44 -1.56 - 95 0 0 42 37 31 5 39 40.0 33 192 -25 43 53 45 41 23 54 43 59 31 41 18 33 -1.56 - 94 0 0 42 26 31 5 39 30.8 33 193 -25 43 42 34 41 13 4 43 48 19 41 7 43 -1.56 - 93 0 0 42 15 52 5 39 21.7 33 194 -26 43 31 45 41 2 35 43 37 30 40 57 15 -1.56 - 92 0 0 42 5 36 5 39 12.5 33 196 -26 43 21 19 40 52 27 43 27 3 40 47 8 -1.56 - 91 0 0 41 55 42 5 39 3.3 33 197 -26 43 11 16 40 42 42 43 16 58 40 37 23 -1.56 - 90 0 0 41 46 10 5 38 54.2 33 198 -26 43 1 35 40 33 18 43 7 17 40 28 0 -1.56 - 89 0 0 41 37 1 5 38 45.0 33 199 -27 42 52 17 40 24 17 42 57 58 40 18 59 -1.56 - 88 0 0 41 28 15 5 38 35.9 32 200 -27 42 43 23 40 15 38 42 49 3 40 10 21 -1.56 - 87 0 0 41 19 52 5 38 26.8 32 201 -27 42 34 51 40 7 22 42 40 31 40 2 5 -1.56 - 86 0 0 41 11 52 5 38 17.7 32 202 -27 42 26 44 39 59 29 42 32 23 39 54 13 -1.56 - 85 0 0 41 4 15 5 38 8.7 32 203 -27 42 19 0 39 51 59 42 24 39 39 46 43 -1.56 - 84 0 0 40 57 2 5 37 59.7 32 204 -27 42 11 40 39 44 52 42 17 19 39 39 36 -1.56 - 83 0 0 40 50 13 5 37 50.7 32 205 -28 42 4 45 39 38 8 42 10 23 39 32 53 -1.56 - 82 0 0 40 43 47 5 37 41.8 31 207 -28 41 58 13 39 31 48 42 3 51 39 26 33 -1.56 - 81 0 0 40 37 45 5 37 33.0 31 208 -28 41 52 6 39 25 51 41 57 43 39 20 36 -1.56 - 80 0 0 40 32 8 5 37 24.2 31 209 -28 41 46 24 39 20 18 41 52 0 39 15 4 -1.56 - 79 0 0 40 26 54 5 37 15.5 31 210 -28 41 41 5 39 15 8 41 46 42 39 9 55 -1.56 - 78 0 0 40 22 5 5 37 6.8 30 211 -28 41 36 12 39 10 23 41 41 48 39 5 10 -1.56 - 77 0 0 40 17 41 5 36 58.2 30 212 -28 41 31 44 39 6 2 41 37 19 39 0 49 -1.56 - 76 0 0 40 13 41 5 36 49.7 30 213 -28 41 27 41 39 2 5 41 33 16 38 56 52 -1.56 - 75 0 0 40 10 5 5 36 41.3 29 214 -28 41 24 2 38 58 32 41 29 37 38 53 20 -1.56 - 74 0 0 40 6 55 5 36 33.0 29 215 -27 41 20 49 38 55 24 41 26 24 38 50 11 -1.56 - 73 0 0 40 4 9 5 36 24.7 29 216 -27 41 18 1 38 52 40 41 23 36 38 47 28 -1.56 - 72 0 0 40 1 48 5 36 16.6 28 217 -27 41 15 39 38 50 21 41 21 14 38 45 8 -1.56 - 71 0 0 39 59 52 5 36 8.6 28 217 -27 41 13 42 38 48 26 41 19 16 38 43 14 -1.57 - 70 0 0 39 58 22 5 36 0.7 27 218 -27 41 12 10 38 46 56 41 17 45 38 41 44 -1.57 - 69 0 0 39 57 16 5 35 52.9 27 219 -27 41 11 5 38 45 51 41 16 39 38 40 38 -1.57 - 68 0 0 39 56 36 5 35 45.2 26 220 -27 41 10 24 38 45 10 41 15 59 38 39 58 -1.57 - 67 0 0 39 56 20 5 35 37.6 26 221 -26 41 10 9 38 44 54 41 15 44 38 39 42 -1.57 - 66 0 0 39 56 30 5 35 30.2 25 222 -26 41 10 21 38 45 3 41 15 55 38 39 51 -1.57 - 65 0 0 39 57 6 5 35 22.9 25 223 -26 41 10 58 38 45 37 41 16 32 38 40 25 -1.57 - 64 0 0 39 58 7 5 35 15.7 24 224 -26 41 12 0 38 46 36 41 17 35 38 41 24 -1.57 - 63 0 0 39 59 33 5 35 8.7 24 225 -25 41 13 29 38 48 0 41 19 4 38 42 48 -1.57 - 62 0 0 40 1 24 5 35 1.8 23 225 -25 41 15 23 38 49 50 41 20 58 38 44 37 -1.57 - 61 0 0 40 3 41 5 34 55.1 23 226 -25 41 17 43 38 52 4 41 23 19 38 46 50 -1.57 - 60 0 0 40 6 24 5 34 48.5 22 227 -24 41 20 29 38 54 43 41 26 5 38 49 29 -1.58 - 59 0 0 40 9 32 5 34 42.1 22 228 -24 41 23 41 38 57 47 41 29 17 38 52 33 -1.58 - 58 0 0 40 13 5 5 34 35.9 21 229 -24 41 27 19 39 1 16 41 32 55 38 56 2 -1.58 - 57 0 0 40 17 4 5 34 29.8 20 230 -23 41 31 23 39 5 10 41 36 59 38 59 56 -1.58 - 56 0 0 40 21 28 5 34 23.9 20 230 -23 41 35 52 39 9 29 41 41 29 39 4 15 -1.58 - 55 0 0 40 26 17 5 34 18.1 19 231 -22 41 40 47 39 14 14 41 46 25 39 8 59 -1.58 - 54 0 0 40 31 32 5 34 12.5 18 232 -22 41 46 8 39 19 23 41 51 46 39 14 7 -1.58 - 53 0 0 40 37 12 5 34 7.2 18 233 -21 41 51 55 39 24 56 41 57 33 39 19 41 -1.59 - 52 0 0 40 43 17 5 34 2.0 17 233 -21 41 58 7 39 30 55 42 3 46 39 25 39 -1.59 - 51 0 0 40 49 47 5 33 57.0 16 234 -20 42 4 45 39 37 19 42 10 24 39 32 2 -1.59 - 50 0 0 40 56 42 5 33 52.1 16 235 -20 42 11 48 39 44 7 42 17 28 39 38 50 -1.59 - 49 0 0 41 4 3 5 33 47.5 15 236 -19 42 19 17 39 51 20 42 24 58 39 46 2 -1.59 - 48 0 0 41 11 48 5 33 43.1 14 236 -19 42 27 11 39 58 57 42 32 53 39 53 39 -1.60 - 47 0 0 41 19 58 5 33 38.9 14 237 -18 42 35 30 40 6 59 42 41 13 40 1 40 -1.60 - 46 0 0 41 28 33 5 33 34.8 13 238 -18 42 44 15 40 15 25 42 49 58 40 10 6 -1.60 - 45 0 0 41 37 33 5 33 31.0 12 238 -17 42 53 24 40 24 15 42 59 8 40 18 55 -1.60 - 44 0 0 41 46 56 5 33 27.4 12 239 -17 43 2 59 40 33 30 43 8 43 40 28 9 -1.61 - 43 0 0 41 56 45 5 33 24.0 11 240 -16 43 12 58 40 43 8 43 18 43 40 37 47 -1.61 - 42 0 0 42 6 57 5 33 20.8 10 241 -15 43 23 21 40 53 10 43 29 8 40 47 48 -1.61 - 41 0 0 42 17 33 5 33 17.9 9 241 -15 43 34 9 41 3 36 43 39 57 40 58 13 -1.62 - 40 0 0 42 28 33 5 33 15.1 9 242 -14 43 45 21 41 14 25 43 51 10 41 9 1 -1.62 - 39 0 0 42 39 57 5 33 12.6 8 243 -14 43 56 58 41 25 38 44 2 47 41 20 13 -1.63 - 38 0 0 42 51 44 5 33 10.3 7 243 -13 44 8 58 41 37 13 44 14 48 41 31 48 -1.63 - 37 0 0 43 3 54 5 33 8.2 7 244 -12 44 21 21 41 49 12 44 27 13 41 43 45 -1.64 - 36 0 0 43 16 28 5 33 6.3 6 245 -12 44 34 8 42 1 33 44 40 1 41 56 6 -1.65 - 35 0 0 43 29 24 5 33 4.7 5 245 -11 44 47 18 42 14 16 44 53 12 42 8 48 -1.66 - 34 0 0 43 42 42 5 33 3.3 4 246 -10 45 0 51 42 27 22 45 6 45 42 21 53 -1.67 - 33 0 0 43 56 23 5 33 2.1 4 247 -10 45 14 46 42 40 49 45 20 42 42 35 19 -1.69 - 32 0 0 44 10 25 5 33 1.2 3 247 -9 45 29 3 42 54 38 45 35 0 42 49 8 -1.73 - 31 0 0 44 24 49 5 33 0.5 2 248 -8 45 43 43 43 8 49 45 49 41 43 3 17 -1.78 - 30 0 0 44 39 35 5 33 0.0 1 249 -8 45 58 44 43 23 20 46 4 43 43 17 47 -1.90 - 29 0 0 44 54 41 5 32 59.7 1 250 -7 46 14 6 43 38 12 46 20 7 43 32 38 -2.33 - 28 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 43 53 24 .. .. .. 43 47 50 .... Uncertainty in time = +/- 5 secs Prediction of 2023 Apr 29.2 Data for the target star ------------------------ * name: UCAC4 381-069012 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 15 05 58.4363 DE: -13 53 59.164 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 15 05 58.4362 DE: -13 53 59.164 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.1 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (268) Adorea asteroid class: approx. diameter [km]: 145 approx. diameter ["]: 0.111 distance from Earth [AU]: 1.80100 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#77 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): 0.036", 0.001", 106.621° remarks: * orbital elements for (268)Adorea : Mean anomaly = 35.5826497766 deg Arg. of pericenter = 68.2961806343 deg Long. of node = 120.8488263902 deg Inclination = 2.4403181135 deg Eccentricity = 0.1367425975 Semimajor axis = 3.0936679223 AU Perihelion dist = 2.6706317347 AU Mag: H = 8.49, G = 0.15 Epoch of elements : MJD 60094.23569444 TDT (2023 May 30.2357) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#772023Apr24,16.24,2023,5,30,5.657288,0.154214,0.825325,-4.942753,0.922380,0.001796,-0.000833,0.000001,0.000000 -105.5228,-13.9913,94.52,21.74,False UCAC4 381-069012,15.09956563,-13.8997679,0.00,12.14,0.00,0.0,0,,15.12127457,-13.9912968,0.97,0.00,0,0,0 268,Adorea,12.54,144.7,1.8010,0,0,-1.658,4.50,,7.8,0 0,35.5400,2023,5,30,68.2962,120.8488,2.4403,0.13674,3.09367,2.67063,8.51,5.0,0.15 1.037,0.0363,0.0015,107,0.0041,Known errors,-1.00,-1,-1,-1 20230530_069012,60063.19 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Apr 29, 04:32 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org