IOTA/IOTA-ES occultation update for (414) Liriope / UCAC4-363-103603 event on 2023 Feb 24, 19:46 UT Visible from Japan Summary ------- On 2023 Feb 24 UT, the 78.9 km diameter asteroid (414) Liriope will occult a 12.5 mag star in the constellation Ophiuchus for observers along a path across Japan. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.85 mag to 16.31 mag (the magnitude of the asteroid) for at most 3.230 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: 2023 Feb 24, 19:43 - 2023 Feb 24, 19:48 * geocentric midpoint of event [JD]: 2460000.32361787 * magnitude of target star: 12.49 * magnitude drop [mag]: 3.85 * estimated maximum duration [s]: 3.230 * Moon: 25 % sunlit, 130° distance * Sun: 71° distance * rough path description: Japan The occultation path -------------------- * approximate projected width [km]: 132 * 1 sigma uncertainty interval [path widths]: +/- 0.16 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.003", 107°) * approx speed of asteroid's shadow [km/s]: 24.4159 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4-363-103603 by 414 Liriope on 2023 Feb 24 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 107 0 0 .. .. .... .. .. .. .. .. .. 50 8 28 .. .. .. 49 55 42 .. .. .. .... 108 0 0 50 28 16 19 43 25.7 1 119 -37 49 48 1 51 9 16 49 35 16 51 22 34 .... 109 0 0 50 7 47 19 43 25.8 1 120 -37 49 27 36 50 48 42 49 14 53 51 1 58 -0.81 110 0 0 49 47 20 19 43 25.9 2 120 -36 49 7 13 50 28 10 48 54 32 50 41 24 -1.00 111 0 0 49 26 56 19 43 26.2 3 121 -36 48 46 54 50 7 41 48 34 14 50 20 53 -1.09 112 0 0 49 6 35 19 43 26.5 4 122 -36 48 26 38 49 47 15 48 14 0 50 0 26 -1.14 113 0 0 48 46 19 19 43 26.9 4 123 -35 48 6 27 49 26 53 47 53 50 49 40 2 -1.18 114 0 0 48 26 7 19 43 27.3 5 123 -35 47 46 21 49 6 36 47 33 46 49 19 44 -1.20 115 0 0 48 6 2 19 43 27.8 6 124 -34 47 26 20 48 46 25 47 13 46 48 59 30 -1.22 116 0 0 47 46 2 19 43 28.5 6 125 -34 47 6 26 48 26 20 46 53 54 48 39 23 -1.24 117 0 0 47 26 9 19 43 29.1 7 126 -34 46 46 38 48 6 21 46 34 8 48 19 23 -1.25 118 0 0 47 6 23 19 43 29.9 8 126 -33 46 26 58 47 46 30 46 14 29 47 59 29 -1.26 119 0 0 46 46 46 19 43 30.7 9 127 -33 46 7 26 47 26 46 45 54 59 47 39 44 -1.26 120 0 0 46 27 17 19 43 31.7 9 128 -32 45 48 3 47 7 11 45 35 37 47 20 7 -1.27 121 0 0 46 7 57 19 43 32.7 10 129 -32 45 28 49 46 47 46 45 16 25 47 0 40 -1.28 122 0 0 45 48 47 19 43 33.7 11 129 -31 45 9 45 46 28 30 44 57 23 46 41 22 -1.28 123 0 0 45 29 48 19 43 34.9 12 130 -30 44 50 51 46 9 25 44 38 31 46 22 15 -1.29 124 0 0 45 11 0 19 43 36.1 12 131 -30 44 32 9 45 50 31 44 19 50 46 3 19 -1.29 125 0 0 44 52 23 19 43 37.4 13 132 -29 44 13 38 45 31 48 44 1 21 45 44 34 -1.29 126 0 0 44 33 59 19 43 38.8 14 132 -29 43 55 19 45 13 18 43 43 4 45 26 2 -1.30 127 0 0 44 15 47 19 43 40.3 15 133 -28 43 37 13 44 55 0 43 25 0 45 7 42 -1.30 128 0 0 43 57 49 19 43 41.9 15 134 -27 43 19 20 44 36 56 43 7 9 44 49 36 -1.30 129 0 0 43 40 5 19 43 43.5 16 135 -27 43 1 42 44 19 6 42 49 32 44 31 44 -1.31 130 0 0 43 22 35 19 43 45.2 17 136 -26 42 44 18 44 1 30 42 32 10 44 14 6 -1.31 131 0 0 43 5 20 19 43 47.0 18 136 -26 42 27 8 43 44 9 42 15 2 43 56 43 -1.31 132 0 0 42 48 21 19 43 48.9 18 137 -25 42 10 15 43 27 4 41 58 10 43 39 36 -1.31 133 0 0 42 31 37 19 43 50.8 19 138 -24 41 53 37 43 10 15 41 41 34 43 22 45 -1.32 134 0 0 42 15 10 19 43 52.8 20 139 -23 41 37 15 42 53 42 41 25 14 43 6 10 -1.32 135 0 0 41 59 0 19 43 54.9 20 140 -23 41 21 11 42 37 26 41 9 11 42 49 53 -1.32 136 0 0 41 43 8 19 43 57.1 21 140 -22 41 5 23 42 21 28 40 53 26 42 33 53 -1.32 137 0 0 41 27 33 19 43 59.3 22 141 -21 40 49 54 42 5 48 40 37 58 42 18 11 -1.32 138 0 0 41 12 17 19 44 1.6 22 142 -21 40 34 43 41 50 26 40 22 49 42 2 47 -1.32 139 0 0 40 57 19 19 44 4.0 23 143 -20 40 19 51 41 35 23 40 7 58 41 47 42 -1.32 140 0 0 40 42 41 19 44 6.4 24 144 -19 40 5 17 41 20 40 39 53 26 41 32 57 -1.33 141 0 0 40 28 22 19 44 8.9 24 145 -18 39 51 4 41 6 16 39 39 14 41 18 31 -1.33 142 0 0 40 14 24 19 44 11.5 25 146 -18 39 37 10 40 52 12 39 25 22 41 4 26 -1.33 143 0 0 40 0 46 19 44 14.1 26 146 -17 39 23 37 40 38 30 39 11 51 40 50 42 -1.33 144 0 0 39 47 29 19 44 16.9 26 147 -16 39 10 25 40 25 8 38 58 40 40 37 19 -1.33 145 0 0 39 34 33 19 44 19.6 27 148 -15 38 57 33 40 12 7 38 45 49 40 24 16 -1.33 146 0 0 39 21 58 19 44 22.4 27 149 -15 38 45 3 39 59 27 38 33 21 40 11 35 -1.33 147 0 0 39 9 46 19 44 25.3 28 150 -14 38 32 55 39 47 10 38 21 14 39 59 16 -1.33 148 0 0 38 57 55 19 44 28.3 29 151 -13 38 21 8 39 35 15 38 9 29 39 47 20 -1.34 149 0 0 38 46 27 19 44 31.3 29 152 -12 38 9 45 39 23 43 37 58 6 39 35 46 -1.34 150 0 0 38 35 22 19 44 34.3 30 153 -11 37 58 44 39 12 34 37 47 6 39 24 35 -1.34 151 0 0 38 24 40 19 44 37.4 30 154 -11 37 48 5 39 1 48 37 36 29 39 13 48 -1.34 152 0 0 38 14 21 19 44 40.6 31 155 -10 37 37 50 38 51 25 37 26 15 39 3 24 -1.34 153 0 0 38 4 26 19 44 43.8 31 156 -9 37 27 59 38 41 26 37 16 25 38 53 24 -1.34 154 0 0 37 54 55 19 44 47.1 32 157 -8 37 18 31 38 31 52 37 6 59 38 43 48 -1.34 155 0 0 37 45 48 19 44 50.3 32 158 -7 37 9 28 38 22 41 36 57 56 38 34 37 -1.34 156 0 0 37 37 6 19 44 53.7 32 159 -6 37 0 48 38 13 55 36 49 18 38 25 50 -1.34 157 0 0 37 28 48 19 44 57.1 33 160 -6 36 52 33 38 5 34 36 41 3 38 17 28 -1.34 158 0 0 37 20 55 19 45 0.5 33 161 -5 36 44 43 37 57 38 36 33 14 38 9 30 -1.34 159 0 0 37 13 26 19 45 3.9 34 162 -4 36 37 17 37 50 7 36 25 49 38 1 58 -1.35 160 0 0 37 6 23 19 45 7.4 34 164 -3 36 30 17 37 43 1 36 18 50 37 54 52 -1.35 161 0 0 36 59 46 19 45 10.9 34 165 -2 36 23 42 37 36 21 36 12 15 37 48 11 -1.35 162 0 0 36 53 34 19 45 14.5 35 166 -2 36 17 32 37 30 6 36 6 6 37 41 55 -1.35 163 0 0 36 47 47 19 45 18.1 35 167 -1 36 11 48 37 24 18 36 0 22 37 36 6 -1.35 164 0 0 36 42 26 19 45 21.7 35 168 0 36 6 29 37 18 55 35 55 4 37 30 43 -1.35 165 0 0 36 37 32 19 45 25.3 35 169 1 36 1 36 37 13 58 35 50 12 37 25 45 -1.35 166 0 0 36 33 3 19 45 29.0 36 170 2 35 57 9 37 9 28 35 45 46 37 21 14 -1.35 167 0 0 36 29 1 19 45 32.6 36 172 2 35 53 8 37 5 24 35 41 45 37 17 10 -1.35 168 0 0 36 25 24 19 45 36.3 36 173 3 35 49 33 37 1 46 35 38 11 37 13 32 -1.35 169 0 0 36 22 14 19 45 40.0 36 174 4 35 46 24 36 58 35 35 35 2 37 10 20 -1.35 170 0 0 36 19 31 19 45 43.7 36 175 5 35 43 42 36 55 51 35 32 20 37 7 35 -1.35 171 0 0 36 17 14 19 45 47.4 36 176 6 35 41 26 36 53 33 35 30 4 37 5 17 -1.35 172 0 0 36 15 23 19 45 51.2 36 178 6 35 39 36 36 51 42 35 28 14 37 3 26 -1.35 173 0 0 36 14 0 19 45 54.9 36 179 7 35 38 13 36 50 17 35 26 51 37 2 1 -1.35 174 0 0 36 13 2 19 45 58.6 36 180 8 35 37 16 36 49 20 35 25 54 37 1 3 -1.35 175 0 0 36 12 32 19 46 2.4 36 181 9 35 36 45 36 48 49 35 25 24 37 0 32 -1.35 176 0 0 36 12 28 19 46 6.1 36 182 10 35 36 41 36 48 45 35 25 20 37 0 28 -1.35 177 0 0 36 12 50 19 46 9.9 36 184 10 35 37 4 36 49 7 35 25 43 37 0 51 -1.36 178 0 0 36 13 39 19 46 13.6 36 185 11 35 37 53 36 49 57 35 26 31 37 1 41 -1.36 179 0 0 36 14 55 19 46 17.3 36 186 12 35 39 8 36 51 13 35 27 47 37 2 58 -1.36 180 0 0 36 16 38 19 46 21.0 36 187 13 35 40 50 36 52 57 35 29 28 37 4 41 -1.36 -179 0 0 36 18 47 19 46 24.7 36 188 13 35 42 58 36 55 6 35 31 36 37 6 51 -1.36 -178 0 0 36 21 22 19 46 28.4 36 190 14 35 45 33 36 57 43 35 34 11 37 9 28 -1.36 -177 0 0 36 24 24 19 46 32.1 36 191 15 35 48 34 37 0 46 35 37 11 37 12 31 -1.36 -176 0 0 36 27 53 19 46 35.7 35 192 16 35 52 1 37 4 16 35 40 38 37 16 1 -1.36 -175 0 0 36 31 47 19 46 39.4 35 193 16 35 55 54 37 8 12 35 44 31 37 19 58 -1.36 -174 0 0 36 36 8 19 46 43.0 35 194 17 36 0 13 37 12 34 35 48 49 37 24 21 -1.36 -173 0 0 36 40 55 19 46 46.5 35 195 18 36 4 58 37 17 23 35 53 34 37 29 10 -1.36 -172 0 0 36 46 8 19 46 50.1 34 196 18 36 10 9 37 22 38 35 58 44 37 34 26 -1.36 -171 0 0 36 51 47 19 46 53.6 34 198 19 36 15 46 37 28 19 36 4 20 37 40 7 -1.36 -170 0 0 36 57 51 19 46 57.1 34 199 20 36 21 48 37 34 25 36 10 22 37 46 15 -1.36 -169 0 0 37 4 21 19 47 0.6 33 200 20 36 28 15 37 40 58 36 16 48 37 52 48 -1.36 -168 0 0 37 11 16 19 47 4.0 33 201 21 36 35 8 37 47 55 36 23 40 37 59 47 -1.36 -167 0 0 37 18 36 19 47 7.4 32 202 22 36 42 26 37 55 19 36 30 57 38 7 11 -1.36 -166 0 0 37 26 22 19 47 10.7 32 203 22 36 50 9 38 3 7 36 38 39 38 15 0 -1.36 -165 0 0 37 34 32 19 47 14.0 32 204 23 36 58 16 38 11 21 36 46 46 38 23 15 -1.36 -164 0 0 37 43 7 19 47 17.3 31 205 23 37 6 48 38 19 59 36 55 17 38 31 54 -1.36 -163 0 0 37 52 7 19 47 20.5 31 206 24 37 15 44 38 29 2 37 4 12 38 40 58 -1.36 -162 0 0 38 1 30 19 47 23.6 30 207 25 37 25 4 38 38 29 37 13 31 38 50 26 -1.36 -161 0 0 38 11 18 19 47 26.7 30 208 25 37 34 48 38 48 20 37 23 14 39 0 19 -1.36 -160 0 0 38 21 29 19 47 29.8 29 209 26 37 44 56 38 58 35 37 33 20 39 10 35 -1.36 -159 0 0 38 32 4 19 47 32.8 29 210 26 37 55 27 39 9 14 37 43 50 39 21 15 -1.36 -158 0 0 38 43 2 19 47 35.7 28 211 27 38 6 21 39 20 16 37 54 43 39 32 19 -1.36 -157 0 0 38 54 22 19 47 38.6 27 212 27 38 17 37 39 31 41 38 5 58 39 43 45 -1.36 -156 0 0 39 6 6 19 47 41.5 27 213 28 38 29 17 39 43 29 38 17 36 39 55 34 -1.36 -155 0 0 39 18 11 19 47 44.2 26 214 28 38 41 18 39 55 39 38 29 36 40 7 45 -1.36 -154 0 0 39 30 39 19 47 46.9 26 215 29 38 53 41 40 8 11 38 41 58 40 20 19 -1.36 -153 0 0 39 43 28 19 47 49.6 25 216 29 39 6 25 40 21 4 38 54 41 40 33 15 -1.36 -152 0 0 39 56 38 19 47 52.2 24 216 29 39 19 31 40 34 20 39 7 45 40 46 31 -1.36 -151 0 0 40 10 9 19 47 54.7 24 217 30 39 32 58 40 47 56 39 21 10 41 0 9 -1.36 -150 0 0 40 24 1 19 47 57.1 23 218 30 39 46 45 41 1 53 39 34 55 41 14 8 -1.36 -149 0 0 40 38 13 19 47 59.5 22 219 30 40 0 52 41 16 10 39 49 1 41 28 26 -1.36 -148 0 0 40 52 45 19 48 1.8 22 220 31 40 15 18 41 30 47 40 3 26 41 43 5 -1.36 -147 0 0 41 7 36 19 48 4.1 21 221 31 40 30 4 41 45 43 40 18 10 41 58 3 -1.36 -146 0 0 41 22 45 19 48 6.2 20 221 31 40 45 8 42 0 58 40 33 13 42 13 20 -1.36 -145 0 0 41 38 14 19 48 8.3 20 222 32 41 0 31 42 16 32 40 48 34 42 28 56 -1.36 -144 0 0 41 54 0 19 48 10.3 19 223 32 41 16 12 42 32 24 41 4 14 42 44 49 -1.36 -143 0 0 42 10 4 19 48 12.3 18 224 32 41 32 11 42 48 33 41 20 10 43 1 1 -1.36 -142 0 0 42 26 25 19 48 14.1 17 225 32 41 48 26 43 5 0 41 36 24 43 17 29 -1.37 -141 0 0 42 43 2 19 48 15.9 17 225 32 42 4 58 43 21 43 41 52 55 43 34 14 -1.37 -140 0 0 42 59 56 19 48 17.6 16 226 33 42 21 46 43 38 43 42 9 41 43 51 16 -1.37 -139 0 0 43 17 5 19 48 19.3 15 227 33 42 38 50 43 55 58 42 26 43 44 8 33 -1.37 -138 0 0 43 34 29 19 48 20.8 15 228 33 42 56 9 44 13 28 42 44 0 44 26 5 -1.37 -137 0 0 43 52 8 19 48 22.3 14 228 33 43 13 42 44 31 13 43 1 31 44 43 52 -1.37 -136 0 0 44 10 1 19 48 23.7 13 229 33 43 31 29 44 49 12 43 19 17 45 1 53 -1.37 -135 0 0 44 28 8 19 48 25.0 12 230 33 43 49 30 45 7 24 43 37 16 45 20 7 -1.37 -134 0 0 44 46 27 19 48 26.2 12 231 33 44 7 44 45 25 49 43 55 28 45 38 34 -1.37 -133 0 0 45 4 59 19 48 27.4 11 231 33 44 26 10 45 44 27 44 13 52 45 57 14 -1.37 -132 0 0 45 23 42 19 48 28.5 10 232 33 44 44 47 46 3 17 44 32 28 46 16 6 -1.38 -131 0 0 45 42 37 19 48 29.5 9 233 33 45 3 36 46 22 17 44 51 15 46 35 8 -1.38 -130 0 0 46 1 42 19 48 30.4 9 234 33 45 22 36 46 41 29 45 10 13 46 54 22 -1.38 -129 0 0 46 20 58 19 48 31.2 8 234 33 45 41 46 47 0 50 45 29 21 47 13 45 -1.38 -128 0 0 46 40 22 19 48 32.0 7 235 33 46 1 5 47 20 21 45 48 39 47 33 18 -1.39 -127 0 0 46 59 56 19 48 32.7 6 236 33 46 20 33 47 40 0 46 8 5 47 52 59 -1.39 -126 0 0 47 19 38 19 48 33.3 6 237 32 46 40 10 47 59 48 46 27 40 48 12 49 -1.40 -125 0 0 47 39 28 19 48 33.8 5 237 32 46 59 54 48 19 43 46 47 22 48 32 46 -1.40 -124 0 0 47 59 24 19 48 34.2 4 238 32 47 19 45 48 39 45 47 7 12 48 52 49 -1.41 -123 0 0 48 19 27 19 48 34.6 3 239 32 47 39 42 48 59 53 47 27 8 49 13 0 -1.43 -122 0 0 48 39 35 19 48 34.9 3 240 32 47 59 46 49 20 7 47 47 9 49 33 16 -1.45 -121 0 0 48 59 49 19 48 35.1 2 240 31 48 19 54 49 40 26 48 7 16 49 53 36 -1.49 -120 0 0 49 20 7 19 48 35.2 1 241 31 48 40 7 50 0 50 48 27 28 50 14 1 -1.58 -119 0 0 49 40 29 19 48 35.3 0 242 31 49 0 24 50 21 17 48 47 43 .. .. .. -1.98 -118 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. 49 8 2 .. .. .. .... Uncertainty in time = +/- 1 secs Prediction of 2022 Dec 30.1 Data for the target star ------------------------ * name: UCAC4-363-103603 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 38 21.1007 DE: -17 27 44.191 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 38 21.1007 DE: -17 27 44.191 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (414) Liriope asteroid class: approx. diameter [km]: 79 approx. diameter ["]: 0.027 distance from Earth [AU]: 3.96950 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#61 date of fit: 2022 Nov 25 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): 0.011", 0.003", 106.842° remarks: * orbital elements for (414)Liriope : Mean anomaly = 181.2111855002 deg Arg. of pericenter = 318.3602808139 deg Long. of node = 110.5454615399 deg Inclination = 9.5573477742 deg Eccentricity = 0.0737200494 Semimajor axis = 3.5054625392 AU Perihelion dist = 3.2470396676 AU Mag: H = 9.62, G = 0.15 Epoch of elements : MJD 59999.82368056 TDT (2023 Feb 24.8237) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#612022Nov25,3.23,2023,2,24,19.766829,0.007437,0.802964,13.780476,-0.121086,-0.005719,0.000404,0.000000,0.000000 173.9919,-17.4766,-113.21,-9.33,False UCAC4-363-103603,17.63919460,-17.4622752,0.00,12.49,0.00,0.0,0,,17.66133923,-17.4765870,3.86,0.00,0,0,0 414,Liriope,16.31,78.9,3.9695,0,0,2.134,-0.27,,4.0,0 0,181.0875,2023,2,24,318.3603,110.5455,9.5573,0.07372,3.50546,3.24704,9.63,5.0,0.15 1.160,0.0110,0.0032,107,0.0044,Known errors,-1.00,-1,-1,-1 20230224_103603,59943.05 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Dec 30, 01:16 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org