IOTA/IOTA-ES occultation update for (598) Octavia / UCAC4 349-089534 event on 2022 Jun 24, 22:39 UT Visible from Europe, N Africa Summary ------- On 2022 Jun 24 UT, the 76.1 km diameter asteroid (598) Octavia will occult a 12.0 mag star in the constellation Ophiuchus for observers along a path across Europe, N Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.13 mag to 13.98 mag (the magnitude of the asteroid) for at most 5.660 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: 96 * date and approx. time of event: 2022 Jun 24, 22:34 - 2022 Jun 24, 22:44 * geocentric midpoint of event [JD]: 2459755.44402833 * magnitude of target star: 12.02 * magnitude drop [mag]: 2.13 * estimated maximum duration [s]: 5.660 * Moon: 15 % sunlit, 150° distance * Sun: 165° distance * rough path description: Europe, N Africa Additional comments ------------------- RUWE high The occultation path -------------------- * approximate projected width [km]: 120 * 1 sigma uncertainty interval [path widths]: +/- 0.42 * 1 sigma uncertainty interval [seconds]: +/- 2.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.027, +/- 0.021) * 1 sigma uncertainty ellipse (major, minor, PA): (0.028", 0.020", 107°) * approx speed of asteroid's shadow [km/s]: 13.4426 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 349-089534 by 598 Octavia on 2022 Jun 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 - 70 0 0 37 19 7 22 44 23.7 0 116 14 .. .. .. 36 42 45 .. .. .. .. .. .. .... - 69 0 0 36 56 10 22 44 23.6 1 116 13 37 32 55 36 19 57 38 4 6 .. .. .. -0.51 - 68 0 0 36 33 38 22 44 23.3 2 117 12 37 10 14 35 57 34 37 41 16 .. .. .. -0.85 - 67 0 0 36 11 31 22 44 22.8 3 118 11 36 47 57 35 35 36 37 18 51 35 5 55 -0.97 - 66 0 0 35 49 49 22 44 22.2 4 118 10 36 26 6 35 14 3 36 56 52 34 44 29 -1.04 - 65 0 0 35 28 33 22 44 21.3 5 119 9 36 4 41 34 52 56 36 35 19 34 23 29 -1.08 - 64 0 0 35 7 44 22 44 20.3 5 119 8 35 43 43 34 32 15 36 14 14 34 2 55 -1.11 - 63 0 0 34 47 22 22 44 19.2 6 120 7 35 23 12 34 12 1 35 53 35 33 42 48 -1.13 - 62 0 0 34 27 27 22 44 17.8 7 121 6 35 3 9 33 52 15 35 33 24 33 23 8 -1.14 - 61 0 0 34 8 0 22 44 16.3 8 121 6 34 43 33 33 32 56 35 13 42 33 3 56 -1.15 - 60 0 0 33 49 1 22 44 14.6 9 122 5 34 24 26 33 14 5 34 54 27 32 45 11 -1.16 - 59 0 0 33 30 31 22 44 12.7 10 122 4 34 5 48 32 55 42 34 35 42 32 26 55 -1.17 - 58 0 0 33 12 29 22 44 10.7 11 123 3 33 47 39 32 37 48 34 17 26 32 9 7 -1.18 - 57 0 0 32 54 57 22 44 8.4 12 123 2 33 29 59 32 20 23 33 59 40 31 51 48 -1.18 - 56 0 0 32 37 54 22 44 6.1 12 124 1 33 12 49 32 3 27 33 42 23 31 34 58 -1.19 - 55 0 0 32 21 21 22 44 3.5 13 125 0 32 56 9 31 47 1 33 25 36 31 18 38 -1.19 - 54 0 0 32 5 19 22 44 0.8 14 125 -1 32 39 59 31 31 5 33 9 20 31 2 47 -1.19 - 53 0 0 31 49 46 22 43 57.9 15 126 -1 32 24 19 31 15 39 32 53 35 30 47 26 -1.20 - 52 0 0 31 34 44 22 43 54.9 16 126 -2 32 9 10 31 0 43 32 38 21 30 32 35 -1.20 - 51 0 0 31 20 12 22 43 51.7 17 127 -3 31 54 33 30 46 18 32 23 37 30 18 15 -1.20 - 50 0 0 31 6 12 22 43 48.4 17 128 -4 31 40 26 30 32 23 32 9 25 30 4 25 -1.20 - 49 0 0 30 52 42 22 43 44.9 18 128 -5 31 26 51 30 19 0 31 55 45 29 51 6 -1.20 - 48 0 0 30 39 44 22 43 41.3 19 129 -6 31 13 47 30 6 7 31 42 36 29 38 18 -1.21 - 47 0 0 30 27 17 22 43 37.5 20 129 -6 31 1 14 29 53 45 31 29 59 29 26 0 -1.21 - 46 0 0 30 15 22 22 43 33.5 21 130 -7 30 49 14 29 41 55 31 17 54 29 14 14 -1.21 - 45 0 0 30 3 59 22 43 29.5 21 131 -8 30 37 46 29 30 37 31 6 21 29 3 0 -1.21 - 44 0 0 29 53 7 22 43 25.3 22 131 -9 30 26 49 29 19 50 30 55 21 28 52 16 -1.21 - 43 0 0 29 42 47 22 43 20.9 23 132 -10 30 16 25 29 9 34 30 44 53 28 42 5 -1.21 - 42 0 0 29 33 0 22 43 16.4 24 133 -11 30 6 33 28 59 51 30 34 57 28 32 25 -1.21 - 41 0 0 29 23 44 22 43 11.8 24 133 -11 29 57 13 28 50 39 30 25 34 28 23 16 -1.21 - 40 0 0 29 15 1 22 43 7.1 25 134 -12 29 48 26 28 42 0 30 16 43 28 14 40 -1.21 - 39 0 0 29 6 50 22 43 2.2 26 135 -13 29 40 11 28 33 52 30 8 25 28 6 35 -1.21 - 38 0 0 28 59 11 22 42 57.2 26 136 -14 29 32 29 28 26 17 30 0 40 27 59 2 -1.21 - 37 0 0 28 52 5 22 42 52.1 27 136 -14 29 25 19 28 19 14 29 53 27 27 52 2 -1.22 - 36 0 0 28 45 31 22 42 46.9 28 137 -15 29 18 43 28 12 42 29 46 48 27 45 33 -1.22 - 35 0 0 28 39 29 22 42 41.6 28 138 -16 29 12 38 28 6 44 29 40 41 27 39 36 -1.22 - 34 0 0 28 34 0 22 42 36.2 29 139 -17 29 7 7 28 1 17 29 35 8 27 34 12 -1.22 - 33 0 0 28 29 4 22 42 30.6 30 139 -17 29 2 8 27 56 23 29 30 7 27 29 19 -1.22 - 32 0 0 28 24 40 22 42 25.0 30 140 -18 28 57 42 27 52 1 29 25 39 27 24 59 -1.22 - 31 0 0 28 20 49 22 42 19.2 31 141 -19 28 53 49 27 48 12 29 21 45 27 21 11 -1.22 - 30 0 0 28 17 30 22 42 13.4 31 142 -19 28 50 29 27 44 54 29 18 23 27 17 55 -1.22 - 29 0 0 28 14 44 22 42 7.5 32 143 -20 28 47 41 27 42 10 29 15 34 27 15 11 -1.22 - 28 0 0 28 12 30 22 42 1.4 33 144 -21 28 45 27 27 39 57 29 13 18 27 13 0 -1.22 - 27 0 0 28 10 49 22 41 55.3 33 145 -21 28 43 45 27 38 17 29 11 36 27 11 20 -1.22 - 26 0 0 28 9 41 22 41 49.1 34 145 -22 28 42 35 27 37 9 29 10 26 27 10 13 -1.22 - 25 0 0 28 9 5 22 41 42.9 34 146 -23 28 41 59 27 36 34 29 9 49 27 9 38 -1.22 - 24 0 0 28 9 1 22 41 36.5 35 147 -23 28 41 55 27 36 30 29 9 45 27 9 35 -1.22 - 23 0 0 28 9 30 22 41 30.1 35 148 -24 28 42 24 27 36 59 29 10 14 27 10 4 -1.22 - 22 0 0 28 10 32 22 41 23.6 35 149 -24 28 43 26 27 38 0 29 11 16 27 11 5 -1.22 - 21 0 0 28 12 5 22 41 17.1 36 150 -25 28 45 0 27 39 34 29 12 50 27 12 38 -1.22 - 20 0 0 28 14 12 22 41 10.5 36 151 -25 28 47 7 27 41 39 29 14 58 27 14 43 -1.22 - 19 0 0 28 16 50 22 41 3.8 37 152 -26 28 49 46 27 44 17 29 17 38 27 17 20 -1.22 - 18 0 0 28 20 1 22 40 57.0 37 153 -26 28 52 58 27 47 27 29 20 51 27 20 28 -1.22 - 17 0 0 28 23 44 22 40 50.3 37 154 -27 28 56 42 27 51 8 29 24 36 27 24 9 -1.22 - 16 0 0 28 27 59 22 40 43.4 38 156 -27 29 0 59 27 55 22 29 28 54 27 28 21 -1.22 - 15 0 0 28 32 46 22 40 36.6 38 157 -28 29 5 47 28 0 7 29 33 44 27 33 5 -1.22 - 14 0 0 28 38 5 22 40 29.6 38 158 -28 29 11 8 28 5 24 29 39 7 27 38 20 -1.22 - 13 0 0 28 43 55 22 40 22.7 38 159 -29 29 17 2 28 11 13 29 45 2 27 44 7 -1.22 - 12 0 0 28 50 18 22 40 15.7 38 160 -29 29 23 27 28 17 33 29 51 29 27 50 26 -1.22 - 11 0 0 28 57 12 22 40 8.7 39 161 -30 29 30 24 28 24 25 29 58 29 27 57 15 -1.22 - 10 0 0 29 4 38 22 40 1.6 39 162 -30 29 37 53 28 31 48 30 6 0 28 4 36 -1.23 - 9 0 0 29 12 36 22 39 54.6 39 163 -30 29 45 53 28 39 42 30 14 3 28 12 28 -1.23 - 8 0 0 29 21 5 22 39 47.5 39 165 -31 29 54 25 28 48 8 30 22 38 28 20 51 -1.23 - 7 0 0 29 30 5 22 39 40.4 39 166 -31 30 3 29 28 57 4 30 31 45 28 29 45 -1.23 - 6 0 0 29 39 36 22 39 33.3 39 167 -31 30 13 4 29 6 32 30 41 23 28 39 10 -1.23 - 5 0 0 29 49 38 22 39 26.2 39 168 -31 30 23 10 29 16 30 30 51 33 28 49 5 -1.23 - 4 0 0 30 0 11 22 39 19.1 39 169 -32 30 33 47 29 26 59 31 2 14 28 59 30 -1.23 - 3 0 0 30 11 15 22 39 11.9 39 170 -32 30 44 56 29 37 59 31 13 26 29 10 26 -1.23 - 2 0 0 30 22 49 22 39 4.8 39 172 -32 30 56 35 29 49 28 31 25 9 29 21 53 -1.23 - 1 0 0 30 34 54 22 38 57.7 39 173 -32 31 8 44 30 1 28 31 37 23 29 33 49 -1.23 0 0 0 30 47 29 22 38 50.6 39 174 -32 31 21 24 30 13 58 31 50 7 29 46 15 -1.23 1 0 0 31 0 33 22 38 43.6 39 175 -32 31 34 34 30 26 58 32 3 22 29 59 10 -1.23 2 0 0 31 14 8 22 38 36.5 39 176 -33 31 48 14 30 40 27 32 17 7 30 12 35 -1.23 3 0 0 31 28 12 22 38 29.5 38 178 -33 32 2 24 30 54 26 32 31 22 30 26 29 -1.23 4 0 0 31 42 46 22 38 22.5 38 179 -33 32 17 4 31 8 54 32 46 7 30 40 53 -1.23 5 0 0 31 57 49 22 38 15.5 38 180 -33 32 32 13 31 23 51 33 1 21 30 55 45 -1.23 6 0 0 32 13 20 22 38 8.6 38 181 -33 32 47 51 31 39 16 33 17 4 31 11 5 -1.23 7 0 0 32 29 20 22 38 1.7 37 182 -33 33 3 57 31 55 10 33 33 17 31 26 54 -1.24 8 0 0 32 45 49 22 37 54.8 37 183 -33 33 20 33 32 11 32 33 49 58 31 43 11 -1.24 9 0 0 33 2 46 22 37 48.0 37 184 -33 33 37 36 32 28 22 34 7 8 31 59 55 -1.24 10 0 0 33 20 10 22 37 41.3 36 186 -32 33 55 8 32 45 40 34 24 45 32 17 7 -1.24 11 0 0 33 38 2 22 37 34.6 36 187 -32 34 13 7 33 3 24 34 42 51 32 34 46 -1.24 12 0 0 33 56 21 22 37 28.0 36 188 -32 34 31 34 33 21 36 35 1 24 32 52 52 -1.24 13 0 0 34 15 7 22 37 21.4 35 189 -32 34 50 27 33 40 14 35 20 24 33 11 25 -1.24 14 0 0 34 34 19 22 37 14.9 35 190 -32 35 9 47 33 59 19 35 39 51 33 30 23 -1.24 15 0 0 34 53 57 22 37 8.5 34 191 -32 35 29 33 34 18 49 35 59 44 33 49 47 -1.24 16 0 0 35 14 1 22 37 2.2 34 192 -31 35 49 45 34 38 45 36 20 4 34 9 37 -1.24 17 0 0 35 34 30 22 36 55.9 33 193 -31 36 10 23 34 59 6 36 40 48 34 29 51 -1.24 18 0 0 35 55 23 22 36 49.8 33 194 -31 36 31 25 35 19 52 37 1 58 34 50 30 -1.24 19 0 0 36 16 41 22 36 43.7 32 195 -30 36 52 52 35 41 1 37 23 33 35 11 33 -1.24 20 0 0 36 38 23 22 36 37.7 32 196 -30 37 14 43 36 2 35 37 45 31 35 33 0 -1.25 21 0 0 37 0 29 22 36 31.8 31 197 -30 37 36 57 36 24 31 38 7 53 35 54 49 -1.25 22 0 0 37 22 57 22 36 26.1 30 198 -29 37 59 34 36 46 51 38 30 38 36 17 1 -1.25 23 0 0 37 45 47 22 36 20.4 30 199 -29 38 22 34 37 9 32 38 53 46 36 39 36 -1.25 24 0 0 38 8 59 22 36 14.8 29 200 -29 38 45 55 37 32 35 39 17 16 37 2 31 -1.25 25 0 0 38 32 32 22 36 9.4 29 201 -28 39 9 38 37 55 59 39 41 7 37 25 48 -1.25 26 0 0 38 56 26 22 36 4.0 28 202 -28 39 33 41 38 19 43 40 5 18 37 49 25 -1.25 27 0 0 39 20 39 22 35 58.8 27 203 -27 39 58 4 38 43 48 40 29 50 38 13 22 -1.25 28 0 0 39 45 12 22 35 53.7 27 204 -27 40 22 47 39 8 11 40 54 41 38 37 38 -1.25 29 0 0 40 10 3 22 35 48.7 26 204 -26 40 47 48 39 32 53 41 19 51 39 2 12 -1.25 30 0 0 40 35 13 22 35 43.9 25 205 -26 41 13 7 39 57 53 41 45 19 39 27 4 -1.25 31 0 0 41 0 39 22 35 39.2 25 206 -25 41 38 44 40 23 10 42 11 4 39 52 14 -1.25 32 0 0 41 26 22 22 35 34.6 24 207 -25 42 4 37 40 48 43 42 37 6 40 17 39 -1.26 33 0 0 41 52 20 22 35 30.2 23 208 -24 42 30 45 41 14 32 43 3 23 40 43 21 -1.26 34 0 0 42 18 34 22 35 25.9 22 209 -23 42 57 8 41 40 36 43 29 55 41 9 17 -1.26 35 0 0 42 45 1 22 35 21.7 22 210 -23 43 23 46 42 6 54 43 56 41 41 35 27 -1.26 36 0 0 43 11 42 22 35 17.7 21 210 -22 43 50 36 42 33 25 44 23 40 42 1 50 -1.26 37 0 0 43 38 35 22 35 13.8 20 211 -22 44 17 39 43 0 8 44 50 52 42 28 26 -1.26 38 0 0 44 5 39 22 35 10.1 19 212 -21 44 44 53 43 27 3 45 18 15 42 55 13 -1.26 39 0 0 44 32 54 22 35 6.5 19 213 -20 45 12 18 43 54 9 45 45 48 43 22 12 -1.26 40 0 0 45 0 19 22 35 3.1 18 214 -20 45 39 53 44 21 24 46 13 31 43 49 20 -1.26 41 0 0 45 27 52 22 34 59.8 17 214 -19 46 7 36 44 48 48 46 41 23 44 16 37 -1.26 42 0 0 45 55 33 22 34 56.7 16 215 -18 46 35 26 45 16 21 47 9 22 44 44 1 -1.26 43 0 0 46 23 21 22 34 53.8 16 216 -18 47 3 24 45 44 0 47 37 27 45 11 34 -1.27 44 0 0 46 51 15 22 34 51.0 15 217 -17 47 31 27 46 11 45 48 5 39 45 39 12 -1.27 45 0 0 47 19 14 22 34 48.3 14 218 -16 47 59 35 46 39 35 48 33 54 46 6 55 -1.27 46 0 0 47 47 17 22 34 45.8 13 218 -16 48 27 46 47 7 29 49 2 13 46 34 43 -1.27 47 0 0 48 15 22 22 34 43.5 12 219 -15 48 56 0 47 35 27 49 30 35 47 2 34 -1.27 48 0 0 48 43 29 22 34 41.3 12 220 -14 49 24 16 48 3 26 49 58 58 47 30 27 -1.27 49 0 0 49 11 38 22 34 39.2 11 221 -14 49 52 32 48 31 27 50 27 21 47 58 21 -1.27 50 0 0 49 39 46 22 34 37.3 10 222 -13 50 20 48 48 59 27 50 55 44 48 26 16 -1.27 51 0 0 50 7 52 22 34 35.6 9 222 -12 50 49 2 49 27 27 51 24 5 48 54 10 -1.28 52 0 0 50 35 57 22 34 34.0 9 223 -12 51 17 14 49 55 25 51 52 22 49 22 2 -1.28 53 0 0 51 3 58 22 34 32.6 8 224 -11 51 45 22 50 23 20 52 20 36 49 49 52 -1.28 54 0 0 51 31 55 22 34 31.3 7 225 -10 52 13 25 50 51 10 52 48 45 50 17 38 -1.28 55 0 0 51 59 47 22 34 30.1 6 225 -9 52 41 23 51 18 56 53 16 48 50 45 19 -1.29 56 0 0 52 27 32 22 34 29.1 5 226 -9 53 9 13 51 46 36 53 44 44 51 12 55 -1.29 57 0 0 52 55 10 22 34 28.3 5 227 -8 53 36 57 52 14 9 54 12 32 51 40 24 -1.30 58 0 0 53 22 39 22 34 27.5 4 228 -7 54 4 31 52 41 34 54 40 11 52 7 45 -1.30 59 0 0 53 50 0 22 34 27.0 3 229 -7 54 31 56 53 8 51 55 7 40 52 34 58 -1.32 60 0 0 54 17 10 22 34 26.5 2 229 -6 54 59 10 53 35 57 55 34 57 53 2 2 -1.33 61 0 0 54 44 9 22 34 26.2 2 230 -5 55 26 13 54 2 53 56 2 3 53 28 55 -1.37 62 0 0 55 10 57 22 34 25.9 1 231 -4 55 53 3 54 29 38 56 28 56 53 55 37 -1.45 63 0 0 55 37 31 22 34 25.9 0 232 -4 .. .. .. 54 56 10 .. .. .. .. .. .. -1.93 Uncertainty in time = +/- 3 secs Prediction of 2022 Apr 29.9 Data for the target star ------------------------ * name: UCAC4 349-089534 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 09 28.9157 DE: -20 13 59.494 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 09 28.9156 DE: -20 13 59.494 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.400,0.300) * V mag [mag]: 12.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (598) Octavia asteroid class: approx. diameter [km]: 76 approx. diameter ["]: 0.053 distance from Earth [AU]: 1.97130 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#52 date of fit: 2022 Apr 12 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): 0.028", 0.020", 107.431° remarks: * orbital elements for (598)Octavia : Mean anomaly = 266.5187320213 deg Arg. of pericenter = 292.1363495502 deg Long. of node = 91.5074093767 deg Inclination = 12.2301403201 deg Eccentricity = 0.2509914407 Semimajor axis = 2.7593313137 AU Perihelion dist = 2.0667627718 AU Mag: H = 9.70, G = 0.15 Epoch of elements : MJD 59754.94395833 TDT (2022 Jun 24.9440) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#522022Apr12,5.66,2022,6,24,22.656680,-0.143171,0.761009,-7.455398,-1.409047,0.001400,-0.000374,0.000001,0.000000 4.7953,-20.2617,-159.20,23.39,False UCAC4 349-089534,17.15803212,-20.2331927,0.00,12.02,0.00,0.0,0,,17.18035789,-20.2617369,2.13,0.00,0,0,0 598,Octavia,13.98,76.1,1.9713,0,0,-2.363,-6.28,,5.0 0,266.3158,2022,6,24,292.1363,91.5074,12.2301,0.25099,2.75933,2.06676,9.72,5.0,0.15 1.418,0.0280,0.0203,107,0.0223,Known errors,-1.00,-1,-1,-1 20220624_089534,59698.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Apr 29, 20:57 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org