IOTA/IOTA-ES occultation update for (11) Parthenope / UCAC4 340-103378 event on 2023 Oct 04, 02:47 UT Visible from S USA, Mexico Summary ------- On 2023 Oct 04 UT, the 150.9 km diameter asteroid (11) Parthenope will occult a 11.4 mag star in the constellation Ophiuchus for observers along a path across S USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.77 mag to 11.44 mag (the magnitude of the asteroid) for at most 5.650 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 Oct 04, 02:45 - 2023 Oct 04, 02:50 * geocentric midpoint of event [JD]: 2460221.61660925 * magnitude of target star: 11.41 * magnitude drop [mag]: 0.77 * estimated maximum duration [s]: 5.650 * Moon: 74 % sunlit, 166° distance * Sun: 75° distance * rough path description: S USA, Mexico The occultation path -------------------- * approximate projected width [km]: 227 * 1 sigma uncertainty interval [path widths]: +/- 0.02 * 1 sigma uncertainty interval [seconds]: +/- 0.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.004, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.004", 0.002", 97°) * approx speed of asteroid's shadow [km/s]: 26.7227 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 340-103378 by 11 Parthenope on 2023 Oct 4 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 149 0 0 .. .. .... .. .. .. .. .. .. 48 5 37 .. .. .. 48 2 5 .. .. .. .... 150 0 0 48 51 39 2 45 16.7 1 126 36 47 37 53 50 7 40 47 34 21 50 11 25 .... 151 0 0 48 23 41 2 45 16.8 2 127 36 47 10 2 49 39 33 47 6 31 49 43 17 -0.67 152 0 0 47 55 37 2 45 17.0 2 127 36 46 42 7 49 11 19 46 38 36 49 15 4 -0.82 153 0 0 47 27 29 2 45 17.2 3 128 36 46 14 8 48 43 1 46 10 38 48 46 45 -0.89 154 0 0 46 59 17 2 45 17.6 4 129 36 45 46 6 48 14 39 45 42 36 48 18 22 -0.94 155 0 0 46 31 3 2 45 18.0 5 130 37 45 18 1 47 46 14 45 14 32 47 49 56 -0.97 156 0 0 46 2 47 2 45 18.4 6 130 37 44 49 56 47 17 46 44 46 27 47 21 28 -0.99 157 0 0 45 34 30 2 45 19.0 7 131 37 44 21 50 46 49 17 44 18 21 46 52 59 -1.01 158 0 0 45 6 14 2 45 19.6 7 132 37 43 53 45 46 20 49 43 50 17 46 24 30 -1.02 159 0 0 44 37 59 2 45 20.4 8 133 37 43 25 42 45 52 21 43 22 14 45 56 1 -1.03 160 0 0 44 9 46 2 45 21.2 9 133 37 42 57 42 45 23 55 42 54 15 45 27 35 -1.04 161 0 0 43 41 37 2 45 22.0 10 134 37 42 29 45 44 55 33 42 26 18 44 59 12 -1.04 162 0 0 43 13 32 2 45 23.0 11 135 37 42 1 53 44 27 14 41 58 27 44 30 52 -1.05 163 0 0 42 45 33 2 45 24.1 12 135 37 41 34 6 43 59 1 41 30 41 44 2 38 -1.05 164 0 0 42 17 40 2 45 25.2 12 136 37 41 6 27 43 30 53 41 3 2 43 34 30 -1.06 165 0 0 41 49 54 2 45 26.4 13 137 37 40 38 55 43 2 53 40 35 30 43 6 29 -1.06 166 0 0 41 22 17 2 45 27.7 14 138 37 40 11 31 42 35 1 40 8 7 42 38 36 -1.07 167 0 0 40 54 49 2 45 29.1 15 138 37 39 44 17 42 7 17 39 40 54 42 10 52 -1.07 168 0 0 40 27 31 2 45 30.6 16 139 37 39 17 13 41 39 44 39 13 51 41 43 18 -1.07 169 0 0 40 0 25 2 45 32.1 17 140 36 38 50 21 41 12 22 38 46 59 41 15 55 -1.07 170 0 0 39 33 30 2 45 33.8 18 140 36 38 23 40 40 45 12 38 20 20 40 48 44 -1.08 171 0 0 39 6 49 2 45 35.5 18 141 36 37 57 13 40 18 15 37 53 53 40 21 46 -1.08 172 0 0 38 40 21 2 45 37.3 19 142 36 37 31 0 39 51 32 37 27 41 39 55 2 -1.08 173 0 0 38 14 8 2 45 39.2 20 143 35 37 5 2 39 25 3 37 1 43 39 28 33 -1.08 174 0 0 37 48 11 2 45 41.2 21 143 35 36 39 20 38 58 50 36 36 2 39 2 19 -1.08 175 0 0 37 22 31 2 45 43.3 22 144 35 36 13 54 38 32 54 36 10 36 38 36 22 -1.09 176 0 0 36 57 7 2 45 45.4 23 145 34 35 48 45 38 7 15 35 45 28 38 10 42 -1.09 177 0 0 36 32 3 2 45 47.6 23 146 34 35 23 55 37 41 54 35 20 39 37 45 21 -1.09 178 0 0 36 7 16 2 45 49.9 24 147 34 34 59 23 37 16 53 34 56 8 37 20 18 -1.09 179 0 0 35 42 50 2 45 52.3 25 147 33 34 35 11 36 52 11 34 31 57 36 55 36 -1.09 -180 0 0 35 18 44 2 45 54.7 26 148 33 34 11 20 36 27 49 34 8 6 36 31 14 -1.09 -179 0 0 34 55 0 2 45 57.2 26 149 32 33 47 50 36 3 49 33 44 36 36 7 13 -1.09 -178 0 0 34 31 37 2 45 59.8 27 150 32 33 24 41 35 40 11 33 21 28 35 43 34 -1.10 -177 0 0 34 8 37 2 46 2.5 28 151 31 33 1 55 35 16 56 32 58 43 35 20 18 -1.10 -176 0 0 33 46 0 2 46 5.2 29 152 31 32 39 32 34 54 4 32 36 20 34 57 25 -1.10 -175 0 0 33 23 47 2 46 8.0 29 152 30 32 17 32 34 31 37 32 14 22 34 34 57 -1.10 -174 0 0 33 1 58 2 46 10.9 30 153 30 31 55 57 34 9 33 31 52 47 34 12 53 -1.10 -173 0 0 32 40 35 2 46 13.8 31 154 29 31 34 47 33 47 56 31 31 38 33 51 14 -1.10 -172 0 0 32 19 37 2 46 16.8 31 155 28 31 14 3 33 26 44 31 10 54 33 30 2 -1.10 -171 0 0 31 59 5 2 46 19.8 32 156 28 30 53 44 33 5 58 30 50 36 33 9 16 -1.10 -170 0 0 31 39 0 2 46 22.9 33 157 27 30 33 52 32 45 40 30 30 44 32 48 56 -1.10 -169 0 0 31 19 23 2 46 26.1 33 158 27 30 14 27 32 25 49 30 11 19 32 29 5 -1.11 -168 0 0 31 0 13 2 46 29.3 34 159 26 29 55 29 32 6 26 29 52 22 32 9 41 -1.11 -167 0 0 30 41 31 2 46 32.5 35 160 25 29 36 59 31 47 31 29 33 53 31 50 46 -1.11 -166 0 0 30 23 18 2 46 35.8 35 161 24 29 18 58 31 29 5 29 15 52 31 32 19 -1.11 -165 0 0 30 5 34 2 46 39.2 36 162 24 29 1 25 31 11 9 28 58 20 31 14 23 -1.11 -164 0 0 29 48 19 2 46 42.6 36 163 23 28 44 22 30 53 43 28 41 17 30 56 55 -1.11 -163 0 0 29 31 35 2 46 46.1 37 164 22 28 27 48 30 36 46 28 24 44 30 39 58 -1.11 -162 0 0 29 15 20 2 46 49.5 37 165 22 28 11 44 30 20 20 28 8 41 30 23 32 -1.11 -161 0 0 28 59 36 2 46 53.1 38 166 21 27 56 10 30 4 26 27 53 7 30 7 37 -1.11 -160 0 0 28 44 23 2 46 56.6 38 168 20 27 41 7 29 49 2 27 38 5 29 52 13 -1.11 -159 0 0 28 29 41 2 47 0.2 39 169 19 27 26 35 29 34 10 27 23 33 29 37 20 -1.11 -158 0 0 28 15 31 2 47 3.9 39 170 18 27 12 34 29 19 50 27 9 33 29 22 59 -1.11 -157 0 0 28 1 53 2 47 7.5 39 171 18 26 59 5 29 6 2 26 56 4 29 9 11 -1.11 -156 0 0 27 48 46 2 47 11.2 40 172 17 26 46 7 28 52 46 26 43 6 28 55 55 -1.12 -155 0 0 27 36 12 2 47 14.9 40 173 16 26 33 41 28 40 3 26 30 41 28 43 11 -1.12 -154 0 0 27 24 11 2 47 18.6 40 175 15 26 21 48 28 27 53 26 18 48 28 31 1 -1.12 -153 0 0 27 12 42 2 47 22.4 41 176 14 26 10 26 28 16 16 26 7 27 28 19 24 -1.12 -152 0 0 27 1 46 2 47 26.2 41 177 13 25 59 38 28 5 13 25 56 39 28 8 20 -1.12 -151 0 0 26 51 24 2 47 29.9 41 178 13 25 49 22 27 54 43 25 46 23 27 57 49 -1.12 -150 0 0 26 41 34 2 47 33.7 41 180 12 25 39 40 27 44 47 25 36 41 27 47 53 -1.12 -149 0 0 26 32 19 2 47 37.6 41 181 11 25 30 30 27 35 24 25 27 32 27 38 30 -1.12 -148 0 0 26 23 37 2 47 41.4 42 182 10 25 21 54 27 26 36 25 18 56 27 29 42 -1.12 -147 0 0 26 15 28 2 47 45.2 42 183 9 25 13 51 27 18 22 25 10 53 27 21 27 -1.12 -146 0 0 26 7 54 2 47 49.0 42 185 8 25 6 22 27 10 42 25 3 24 27 13 47 -1.12 -145 0 0 26 0 54 2 47 52.9 42 186 7 24 59 26 27 3 37 24 56 29 27 6 42 -1.12 -144 0 0 25 54 28 2 47 56.7 42 187 6 24 53 5 26 57 6 24 50 8 27 0 11 -1.12 -143 0 0 25 48 36 2 48 0.5 42 188 6 24 47 17 26 51 10 24 44 20 26 54 14 -1.12 -142 0 0 25 43 18 2 48 4.4 42 190 5 24 42 3 26 45 49 24 39 6 26 48 53 -1.12 -141 0 0 25 38 35 2 48 8.2 42 191 4 24 37 23 26 41 2 24 34 27 26 44 6 -1.12 -140 0 0 25 34 27 2 48 12.0 41 192 3 24 33 17 26 36 51 24 30 21 26 39 55 -1.12 -139 0 0 25 30 53 2 48 15.8 41 193 2 24 29 46 26 33 14 24 26 50 26 36 18 -1.12 -138 0 0 25 27 53 2 48 19.6 41 195 1 24 26 49 26 30 13 24 23 53 26 33 16 -1.12 -137 0 0 25 25 29 2 48 23.4 41 196 0 24 24 26 26 27 46 24 21 30 26 30 50 -1.12 -136 0 0 25 23 39 2 48 27.1 41 197 -1 24 22 37 26 25 55 24 19 41 26 28 58 -1.12 -135 0 0 25 22 23 2 48 30.9 40 198 -2 24 21 22 26 24 38 24 18 26 26 27 42 -1.12 -134 0 0 25 21 42 2 48 34.6 40 199 -3 24 20 42 26 23 57 24 17 46 26 27 0 -1.12 -133 0 0 25 21 36 2 48 38.3 40 201 -4 24 20 36 26 23 51 24 17 40 26 26 54 -1.12 -132 0 0 25 22 5 2 48 41.9 39 202 -4 24 21 5 26 24 19 24 18 9 26 27 23 -1.13 -131 0 0 25 23 8 2 48 45.6 39 203 -5 24 22 8 26 25 23 24 19 12 26 28 27 -1.13 -130 0 0 25 24 46 2 48 49.2 39 204 -6 24 23 44 26 27 2 24 20 48 26 30 6 -1.13 -129 0 0 25 26 59 2 48 52.8 38 205 -7 24 25 56 26 29 16 24 23 0 26 32 20 -1.13 -128 0 0 25 29 46 2 48 56.3 38 206 -8 24 28 41 26 32 5 24 25 45 26 35 9 -1.13 -127 0 0 25 33 7 2 48 59.8 37 207 -9 24 32 0 26 35 29 24 29 4 26 38 33 -1.13 -126 0 0 25 37 3 2 49 3.3 37 208 -10 24 35 54 26 39 27 24 32 58 26 42 31 -1.13 -125 0 0 25 41 34 2 49 6.7 36 209 -11 24 40 21 26 44 1 24 37 25 26 47 5 -1.13 -124 0 0 25 46 38 2 49 10.1 36 210 -12 24 45 23 26 49 9 24 42 26 26 52 13 -1.13 -123 0 0 25 52 17 2 49 13.5 35 211 -13 24 50 58 26 54 51 24 48 1 26 57 56 -1.13 -122 0 0 25 58 30 2 49 16.8 35 212 -14 24 57 7 27 1 8 24 54 10 27 4 13 -1.13 -121 0 0 26 5 17 2 49 20.0 34 213 -15 25 3 49 27 8 0 25 0 52 27 11 5 -1.13 -120 0 0 26 12 37 2 49 23.2 34 214 -15 25 11 5 27 15 26 25 8 8 27 18 31 -1.13 -119 0 0 26 20 32 2 49 26.4 33 215 -16 25 18 55 27 23 25 25 15 57 27 26 31 -1.13 -118 0 0 26 29 0 2 49 29.5 32 216 -17 25 27 17 27 31 59 25 24 19 27 35 5 -1.13 -117 0 0 26 38 1 2 49 32.5 32 217 -18 25 36 13 27 41 7 25 33 14 27 44 12 -1.13 -116 0 0 26 47 36 2 49 35.5 31 217 -19 25 45 41 27 50 48 25 42 42 27 53 54 -1.13 -115 0 0 26 57 43 2 49 38.5 30 218 -20 25 55 42 28 1 2 25 52 43 28 4 9 -1.13 -114 0 0 27 8 24 2 49 41.3 30 219 -21 26 6 16 28 11 50 26 3 17 28 14 57 -1.13 -113 0 0 27 19 37 2 49 44.2 29 220 -22 26 17 22 28 23 11 26 14 22 28 26 18 -1.13 -112 0 0 27 31 23 2 49 46.9 28 221 -22 26 29 0 28 35 5 26 26 0 28 38 12 -1.13 -111 0 0 27 43 41 2 49 49.6 27 221 -23 26 41 10 28 47 31 26 38 10 28 50 39 -1.13 -110 0 0 27 56 30 2 49 52.2 27 222 -24 26 53 51 29 0 30 26 50 51 29 3 38 -1.13 -109 0 0 28 9 52 2 49 54.8 26 223 -25 27 7 5 29 14 0 27 4 3 29 17 10 -1.13 -108 0 0 28 23 45 2 49 57.2 25 223 -26 27 20 49 29 28 3 27 17 47 29 31 13 -1.13 -107 0 0 28 38 9 2 49 59.6 24 224 -27 27 35 4 29 42 37 27 32 2 29 45 47 -1.13 -106 0 0 28 53 5 2 50 2.0 24 225 -28 27 49 49 29 57 43 27 46 47 30 0 53 -1.13 -105 0 0 29 8 30 2 50 4.2 23 226 -28 28 5 5 30 13 19 28 2 3 30 16 30 -1.13 -104 0 0 29 24 26 2 50 6.4 22 226 -29 28 20 51 30 29 26 28 17 48 30 32 38 -1.13 -103 0 0 29 40 52 2 50 8.5 21 227 -30 28 37 7 30 46 3 28 34 3 30 49 15 -1.13 -102 0 0 29 57 48 2 50 10.6 20 228 -31 28 53 51 31 3 10 28 50 47 31 6 23 -1.13 -101 0 0 30 15 13 2 50 12.5 19 228 -32 29 11 5 31 20 47 29 8 0 31 24 0 -1.13 -100 0 0 30 33 6 2 50 14.4 19 229 -32 29 28 47 31 38 52 29 25 42 31 42 6 -1.13 - 99 0 0 30 51 28 2 50 16.2 18 229 -33 29 46 57 31 57 26 29 43 51 32 0 41 -1.13 - 98 0 0 31 10 17 2 50 17.9 17 230 -34 30 5 35 32 16 29 30 2 29 32 19 44 -1.13 - 97 0 0 31 29 34 2 50 19.5 16 231 -34 30 24 40 32 35 59 30 21 33 32 39 15 -1.13 - 96 0 0 31 49 18 2 50 21.1 15 231 -35 30 44 12 32 55 56 30 41 4 32 59 12 -1.13 - 95 0 0 32 9 29 2 50 22.5 14 232 -36 31 4 10 33 16 20 31 1 2 33 19 37 -1.14 - 94 0 0 32 30 5 2 50 23.9 13 232 -37 31 24 33 33 37 10 31 21 25 33 40 28 -1.14 - 93 0 0 32 51 7 2 50 25.2 13 233 -37 31 45 22 33 58 26 31 42 13 34 1 45 -1.14 - 92 0 0 33 12 34 2 50 26.4 12 234 -38 32 6 36 34 20 7 32 3 26 34 23 26 -1.14 - 91 0 0 33 34 25 2 50 27.5 11 234 -38 32 28 14 34 42 12 32 25 3 34 45 32 -1.14 - 90 0 0 33 56 40 2 50 28.5 10 235 -39 32 50 15 35 4 42 32 47 4 35 8 3 -1.14 - 89 0 0 34 19 18 2 50 29.4 9 235 -40 33 12 39 35 27 34 33 9 27 35 30 56 -1.15 - 88 0 0 34 42 18 2 50 30.2 8 236 -40 33 35 26 35 50 50 33 32 13 35 54 12 -1.15 - 87 0 0 35 5 41 2 50 31.0 7 237 -41 33 58 34 36 14 27 33 55 21 36 17 50 -1.15 - 86 0 0 35 29 24 2 50 31.6 6 237 -41 34 22 3 36 38 26 34 18 49 36 41 50 -1.16 - 85 0 0 35 53 28 2 50 32.2 5 238 -42 34 45 53 37 2 45 34 42 38 37 6 10 -1.17 - 84 0 0 36 17 51 2 50 32.7 4 238 -42 35 10 2 37 27 24 35 6 47 37 30 49 -1.18 - 83 0 0 36 42 34 2 50 33.1 4 239 -43 35 34 30 37 52 22 35 31 14 37 55 48 -1.19 - 82 0 0 37 7 35 2 50 33.4 3 240 -43 35 59 17 38 17 38 35 56 0 38 21 5 -1.22 - 81 0 0 37 32 53 2 50 33.6 2 240 -43 36 24 21 38 43 12 36 21 3 38 46 40 -1.27 - 80 0 0 37 58 28 2 50 33.7 1 241 -44 36 49 41 39 9 3 36 46 23 39 12 32 -1.44 - 79 0 0 .. .. .... .. .. .. .. .. .. 37 15 18 .. .. .. 37 11 59 .. .. .. .... Uncertainty in time = +/- 0 secs Prediction of 2023 Aug 26.9 Data for the target star ------------------------ * name: UCAC4 340-103378 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 37 47.3211 DE: -22 09 17.284 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 37 47.3210 DE: -22 09 17.284 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.4 * B mag [mag]: 12.4 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (11) Parthenope asteroid class: approx. diameter [km]: 151 approx. diameter ["]: 0.091 distance from Earth [AU]: 2.28590 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#127 date of fit: 2023 Aug 21 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): 0.004", 0.002", 97.3° remarks: * orbital elements for (11)Parthenope : Mean anomaly = 334.5016821735 deg Arg. of pericenter = 195.8317154183 deg Long. of node = 125.5172178800 deg Inclination = 4.6315873816 deg Eccentricity = 0.0993016480 Semimajor axis = 2.4525706856 AU Perihelion dist = 2.2090263746 AU Mag: H = 6.73, G = 0.15 Epoch of elements : MJD 60221.11660563 TDT (2023 Oct 04.1166) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1272023Aug21,5.65,2023,10,4,2.798622,0.082920,0.740888,14.988826,-1.683235,0.005273,-0.000163,0.000000,0.000000 -149.7213,-22.1693,135.25,-4.21,False UCAC4 340-103378,17.62981145,-22.1548011,12.44,11.41,10.85,0.1,0,,17.65339698,-22.1693373,0.77,0.82,0,0,0 11,Parthenope,11.44,151.050,2.2859,0,0,4.152,-6.47,,8.4,0 0,334.4718,2023,10,4,195.8317,125.5172,4.6316,0.09930,2.45257,2.20903,6.73,5.0,0.15 1.024,0.0040,0.0022,97,0.0046,Known errors,0.85,0,-1,-1 20231004_103378,60182.92 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Aug 26, 22:01 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org