IOTA/IOTA-ES occultation update for (76) Freia / TYC 6247-00203-1 event on 2023 May 29, 20:54 UT Visible from SW Asia, Europe Summary ------- On 2023 May 29 UT, the 166.8 km diameter asteroid (76) Freia will occult a 11.8 mag star in the constellation Ophiuchus for observers along a path across SW Asia, Europe. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.13 mag to 13.79 mag (the magnitude of the asteroid) for at most 11.520 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 May 29, 20:50 - 2023 May 29, 20:59 * geocentric midpoint of event [JD]: 2460094.37160755 * magnitude of target star: 11.82 * magnitude drop [mag]: 2.13 * estimated maximum duration [s]: 11.520 * Moon: 71 % sunlit, 82° distance * Sun: 163° distance * rough path description: SW Asia, Europe The occultation path -------------------- * approximate projected width [km]: 282 * 1 sigma uncertainty interval [path widths]: +/- 0.12 * 1 sigma uncertainty interval [seconds]: +/- 2.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.009) * 1 sigma uncertainty ellipse (major, minor, PA): (0.016", 0.009", 107°) * approx speed of asteroid's shadow [km/s]: 14.4756 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6247-00203-1 by 76 Freia on 2023 May 29 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 2 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 51 34 32 .. .. .. 51 13 6 .... 3 0 0 52 41 43 20 59 26.2 0 127 -7 .. .. .. 51 8 3 .. .. .. 50 46 41 .... 4 0 0 52 14 56 20 59 26.1 1 127 -8 53 52 49 50 41 33 .. .. .. 50 20 15 -0.65 5 0 0 51 48 8 20 59 25.9 2 128 -9 53 25 40 50 15 4 53 49 16 49 53 49 -0.95 6 0 0 51 21 21 20 59 25.5 3 129 -10 52 58 32 49 48 35 53 22 2 49 27 25 -1.08 7 0 0 50 54 35 20 59 25.0 3 130 -10 52 31 24 49 22 9 52 54 48 49 1 3 -1.15 8 0 0 50 27 52 20 59 24.3 4 130 -11 52 4 18 48 55 45 52 27 37 48 34 44 -1.19 9 0 0 50 1 13 20 59 23.5 5 131 -12 51 37 16 48 29 26 52 0 28 48 8 29 -1.23 10 0 0 49 34 38 20 59 22.6 6 132 -13 51 10 17 48 3 12 51 33 23 47 42 19 -1.25 11 0 0 49 8 8 20 59 21.6 6 133 -13 50 43 24 47 37 3 51 6 24 47 16 15 -1.26 12 0 0 48 41 45 20 59 20.3 7 134 -14 50 16 36 47 11 1 50 39 30 46 50 18 -1.28 13 0 0 48 15 29 20 59 19.0 8 134 -15 49 49 56 46 45 7 50 12 44 46 24 28 -1.29 14 0 0 47 49 22 20 59 17.5 9 135 -15 49 23 24 46 19 22 49 46 5 45 58 48 -1.30 15 0 0 47 23 24 20 59 15.8 10 136 -16 48 57 0 45 53 46 49 19 35 45 33 16 -1.31 16 0 0 46 57 36 20 59 14.0 10 137 -17 48 30 47 45 28 20 48 53 16 45 7 55 -1.31 17 0 0 46 31 59 20 59 12.1 11 137 -18 48 4 45 45 3 5 48 27 7 44 42 46 -1.32 18 0 0 46 6 34 20 59 10.0 12 138 -18 47 38 55 44 38 3 48 1 10 44 17 48 -1.32 19 0 0 45 41 22 20 59 7.8 13 139 -19 47 13 17 44 13 13 47 35 26 43 53 3 -1.33 20 0 0 45 16 23 20 59 5.4 13 140 -20 46 47 53 43 48 37 47 9 55 43 28 32 -1.33 21 0 0 44 51 38 20 59 2.9 14 140 -20 46 22 43 43 24 15 46 44 39 43 4 15 -1.33 22 0 0 44 27 9 20 59 0.2 15 141 -21 45 57 48 43 0 8 46 19 38 42 40 13 -1.34 23 0 0 44 2 56 20 58 57.4 16 142 -21 45 33 10 42 36 17 45 54 53 42 16 27 -1.34 24 0 0 43 38 59 20 58 54.5 16 143 -22 45 8 48 42 12 43 45 30 25 41 52 57 -1.34 25 0 0 43 15 20 20 58 51.4 17 143 -23 44 44 44 41 49 26 45 6 15 41 29 45 -1.34 26 0 0 42 51 59 20 58 48.2 18 144 -23 44 20 58 41 26 26 44 42 23 41 6 51 -1.35 27 0 0 42 28 57 20 58 44.8 19 145 -24 43 57 31 41 3 46 44 18 50 40 44 15 -1.35 28 0 0 42 6 14 20 58 41.3 19 146 -25 43 34 24 40 41 24 43 55 36 40 21 58 -1.35 29 0 0 41 43 51 20 58 37.7 20 147 -25 43 11 37 40 19 23 43 32 43 40 0 1 -1.35 30 0 0 41 21 48 20 58 33.9 21 147 -26 42 49 11 39 57 41 43 10 11 39 38 24 -1.35 31 0 0 41 0 7 20 58 30.1 22 148 -26 42 27 7 39 36 21 42 48 1 39 17 9 -1.35 32 0 0 40 38 47 20 58 26.1 22 149 -27 42 5 24 39 15 22 42 26 13 38 56 14 -1.35 33 0 0 40 17 50 20 58 21.9 23 150 -27 41 44 4 38 54 45 42 4 47 38 35 42 -1.35 34 0 0 39 57 16 20 58 17.7 24 151 -28 41 23 8 38 34 31 41 43 45 38 15 31 -1.36 35 0 0 39 37 5 20 58 13.3 24 152 -28 41 2 35 38 14 39 41 23 6 37 55 44 -1.36 36 0 0 39 17 17 20 58 8.9 25 152 -29 40 42 26 37 55 11 41 2 52 37 36 20 -1.36 37 0 0 38 57 54 20 58 4.3 26 153 -29 40 22 42 37 36 7 40 43 3 37 17 20 -1.36 38 0 0 38 38 56 20 57 59.6 26 154 -29 40 3 23 37 17 27 40 23 38 36 58 45 -1.36 39 0 0 38 20 23 20 57 54.8 27 155 -30 39 44 29 36 59 12 40 4 40 36 40 33 -1.36 40 0 0 38 2 15 20 57 49.9 27 156 -30 39 26 2 36 41 21 39 46 7 36 22 47 -1.36 41 0 0 37 44 33 20 57 44.9 28 157 -31 39 8 1 36 23 57 39 28 1 36 5 26 -1.36 42 0 0 37 27 17 20 57 39.8 29 158 -31 38 50 26 36 6 58 39 10 22 35 48 31 -1.36 43 0 0 37 10 28 20 57 34.6 29 159 -31 38 33 19 35 50 25 38 53 10 35 32 2 -1.36 44 0 0 36 54 5 20 57 29.3 30 160 -32 38 16 38 35 34 19 38 36 26 35 15 59 -1.36 45 0 0 36 38 10 20 57 24.0 30 161 -32 38 0 26 35 18 39 38 20 9 35 0 23 -1.36 46 0 0 36 22 42 20 57 18.5 31 162 -32 37 44 42 35 3 26 38 4 21 34 45 13 -1.36 47 0 0 36 7 42 20 57 13.0 31 163 -32 37 29 26 34 48 41 37 49 0 34 30 31 -1.36 48 0 0 35 53 11 20 57 7.4 32 164 -33 37 14 38 34 34 23 37 34 9 34 16 16 -1.36 49 0 0 35 39 7 20 57 1.7 32 165 -33 37 0 20 34 20 33 37 19 47 34 2 29 -1.36 50 0 0 35 25 32 20 56 56.0 32 166 -33 36 46 30 34 7 11 37 5 53 33 49 10 -1.36 51 0 0 35 12 26 20 56 50.2 33 167 -33 36 33 10 33 54 17 36 52 30 33 36 20 -1.36 52 0 0 34 59 48 20 56 44.4 33 168 -33 36 20 19 33 41 52 36 39 35 33 23 57 -1.36 53 0 0 34 47 40 20 56 38.4 34 169 -33 36 7 58 33 29 56 36 27 11 33 12 3 -1.36 54 0 0 34 36 1 20 56 32.5 34 170 -33 35 56 6 33 18 28 36 15 16 33 0 38 -1.36 55 0 0 34 24 52 20 56 26.5 34 171 -33 35 44 45 33 7 30 36 3 52 32 49 42 -1.36 56 0 0 34 14 12 20 56 20.4 34 172 -33 35 33 54 32 57 1 35 52 59 32 39 15 -1.36 57 0 0 34 4 3 20 56 14.3 35 173 -33 35 23 34 32 47 1 35 42 35 32 29 17 -1.36 58 0 0 33 54 23 20 56 8.2 35 174 -33 35 13 44 32 37 30 35 32 43 32 19 49 -1.36 59 0 0 33 45 13 20 56 2.0 35 175 -33 35 4 25 32 28 29 35 23 21 32 10 50 -1.36 60 0 0 33 36 34 20 55 55.8 35 176 -33 34 55 36 32 19 58 35 14 31 32 2 21 -1.36 61 0 0 33 28 25 20 55 49.5 36 177 -33 34 47 19 32 11 57 35 6 11 31 54 22 -1.36 62 0 0 33 20 47 20 55 43.3 36 179 -33 34 39 33 32 4 26 34 58 23 31 46 52 -1.37 63 0 0 33 13 39 20 55 37.0 36 180 -33 34 32 17 31 57 26 34 51 6 31 39 53 -1.37 64 0 0 33 7 2 20 55 30.7 36 181 -33 34 25 33 31 50 55 34 44 20 31 33 24 -1.37 65 0 0 33 0 56 20 55 24.4 36 182 -32 34 19 21 31 44 55 34 38 6 31 27 25 -1.37 66 0 0 32 55 21 20 55 18.1 36 183 -32 34 13 40 31 39 24 34 32 23 31 21 56 -1.37 67 0 0 32 50 17 20 55 11.8 36 184 -32 34 8 30 31 34 25 34 27 13 31 16 57 -1.37 68 0 0 32 45 43 20 55 5.4 36 185 -32 34 3 52 31 29 56 34 22 34 31 12 29 -1.37 69 0 0 32 41 41 20 54 59.1 36 186 -31 33 59 46 31 25 58 34 18 27 31 8 32 -1.37 70 0 0 32 38 11 20 54 52.8 36 188 -31 33 56 12 31 22 30 34 14 52 31 5 5 -1.37 71 0 0 32 35 12 20 54 46.5 36 189 -31 33 53 10 31 19 34 34 11 48 31 2 9 -1.37 72 0 0 32 32 43 20 54 40.2 36 190 -30 33 50 39 31 17 8 34 9 17 30 59 44 -1.37 73 0 0 32 30 46 20 54 33.9 36 191 -30 33 48 40 31 15 12 34 7 18 30 57 49 -1.37 74 0 0 32 29 21 20 54 27.6 36 192 -30 33 47 13 31 13 48 34 5 50 30 56 24 -1.37 75 0 0 32 28 26 20 54 21.4 36 193 -29 33 46 18 31 12 54 34 4 54 30 55 31 -1.37 76 0 0 32 28 3 20 54 15.2 35 194 -29 33 45 54 31 12 32 34 4 31 30 55 8 -1.37 77 0 0 32 28 11 20 54 9.0 35 195 -28 33 46 3 31 12 39 34 4 40 30 55 16 -1.37 78 0 0 32 28 51 20 54 2.8 35 196 -28 33 46 44 31 13 18 34 5 21 30 55 55 -1.37 79 0 0 32 30 2 20 53 56.7 35 197 -27 33 47 57 31 14 28 34 6 34 30 57 4 -1.37 80 0 0 32 31 45 20 53 50.6 34 199 -27 33 49 42 31 16 9 34 8 20 30 58 44 -1.37 81 0 0 32 33 59 20 53 44.6 34 200 -26 33 51 59 31 18 21 34 10 37 31 0 56 -1.37 82 0 0 32 36 45 20 53 38.6 34 201 -26 33 54 48 31 21 3 34 13 27 31 3 38 -1.37 83 0 0 32 40 2 20 53 32.7 33 202 -25 33 58 9 31 24 17 34 16 49 31 6 51 -1.37 84 0 0 32 43 51 20 53 26.8 33 203 -25 34 2 1 31 28 2 34 20 43 31 10 35 -1.37 85 0 0 32 48 11 20 53 21.0 33 204 -24 34 6 26 31 32 17 34 25 9 31 14 49 -1.37 86 0 0 32 53 2 20 53 15.2 32 205 -24 34 11 23 31 37 3 34 30 7 31 19 34 -1.38 87 0 0 32 58 24 20 53 9.5 32 206 -23 34 16 51 31 42 20 34 35 37 31 24 50 -1.38 88 0 0 33 4 18 20 53 3.9 31 207 -22 34 22 51 31 48 8 34 41 39 31 30 36 -1.38 89 0 0 33 10 43 20 52 58.4 31 208 -22 34 29 23 31 54 26 34 48 12 31 36 53 -1.38 90 0 0 33 17 38 20 52 52.9 30 208 -21 34 36 27 32 1 15 34 55 18 31 43 40 -1.38 91 0 0 33 25 5 20 52 47.5 30 209 -20 34 44 2 32 8 35 35 2 55 31 50 58 -1.38 92 0 0 33 33 3 20 52 42.1 29 210 -20 34 52 9 32 16 24 35 11 4 31 58 46 -1.38 93 0 0 33 41 32 20 52 36.9 29 211 -19 35 0 47 32 24 44 35 19 44 32 7 4 -1.38 94 0 0 33 50 31 20 52 31.8 28 212 -18 35 9 56 32 33 35 35 28 56 32 15 53 -1.38 95 0 0 34 0 1 20 52 26.7 28 213 -18 35 19 36 32 42 55 35 38 39 32 25 11 -1.38 96 0 0 34 10 2 20 52 21.7 27 214 -17 35 29 48 32 52 46 35 48 53 32 34 59 -1.38 97 0 0 34 20 32 20 52 16.8 27 215 -16 35 40 31 33 3 6 35 59 39 32 45 17 -1.38 98 0 0 34 31 34 20 52 12.1 26 215 -15 35 51 44 33 13 56 36 10 55 32 56 5 -1.38 99 0 0 34 43 5 20 52 7.4 25 216 -15 36 3 28 33 25 16 36 22 42 33 7 22 -1.39 100 0 0 34 55 6 20 52 2.8 25 217 -14 36 15 42 33 37 5 36 35 0 33 19 8 -1.39 101 0 0 35 7 37 20 51 58.4 24 218 -13 36 28 27 33 49 23 36 47 48 33 31 24 -1.39 102 0 0 35 20 37 20 51 54.0 23 219 -12 36 41 42 34 2 11 37 1 6 33 44 8 -1.39 103 0 0 35 34 7 20 51 49.8 23 219 -12 36 55 26 34 15 27 37 14 55 33 57 22 -1.39 104 0 0 35 48 6 20 51 45.7 22 220 -11 37 9 41 34 29 12 37 29 13 34 11 4 -1.39 105 0 0 36 2 34 20 51 41.7 21 221 -10 37 24 25 34 43 26 37 44 1 34 25 14 -1.39 106 0 0 36 17 31 20 51 37.9 21 222 -9 37 39 38 34 58 7 37 59 18 34 39 53 -1.39 107 0 0 36 32 56 20 51 34.1 20 222 -9 37 55 20 35 13 17 38 15 5 34 54 59 -1.39 108 0 0 36 48 49 20 51 30.5 19 223 -8 38 11 31 35 28 54 38 31 20 35 10 33 -1.40 109 0 0 37 5 10 20 51 27.0 18 224 -7 38 28 10 35 44 59 38 48 3 35 26 34 -1.40 110 0 0 37 21 59 20 51 23.7 18 225 -6 38 45 17 36 1 31 39 5 15 35 43 2 -1.40 111 0 0 37 39 15 20 51 20.5 17 225 -5 39 2 52 36 18 30 39 22 55 35 59 57 -1.40 112 0 0 37 56 57 20 51 17.4 16 226 -5 39 20 54 36 35 55 39 41 2 36 17 18 -1.40 113 0 0 38 15 7 20 51 14.4 15 227 -4 39 39 24 36 53 46 39 59 37 36 35 6 -1.40 114 0 0 38 33 43 20 51 11.7 15 227 -3 39 58 20 37 12 4 40 18 38 36 53 19 -1.41 115 0 0 38 52 44 20 51 9.0 14 228 -2 40 17 42 37 30 46 40 38 6 37 11 58 -1.41 116 0 0 39 12 11 20 51 6.5 13 229 -1 40 37 31 37 49 54 40 57 59 37 31 1 -1.41 117 0 0 39 32 3 20 51 4.1 12 229 0 40 57 44 38 9 26 41 18 19 37 50 29 -1.41 118 0 0 39 52 19 20 51 1.9 11 230 0 41 18 23 38 29 23 41 39 3 38 10 21 -1.41 119 0 0 40 12 59 20 50 59.9 11 231 1 41 39 26 38 49 43 42 0 11 38 30 37 -1.42 120 0 0 40 34 3 20 50 58.0 10 231 2 42 0 53 39 10 26 42 21 44 38 51 15 -1.42 121 0 0 40 55 30 20 50 56.2 9 232 3 42 22 43 39 31 32 42 43 40 39 12 17 -1.42 122 0 0 41 17 20 20 50 54.6 8 233 4 42 44 56 39 53 0 43 5 59 39 33 40 -1.43 123 0 0 41 39 31 20 50 53.2 7 233 5 43 7 31 40 14 50 43 28 41 39 55 25 -1.43 124 0 0 42 2 3 20 50 51.9 6 234 5 43 30 28 40 37 0 43 51 44 40 17 31 -1.44 125 0 0 42 24 56 20 50 50.8 6 235 6 43 53 46 40 59 31 44 15 8 40 39 57 -1.44 126 0 0 42 48 9 20 50 49.8 5 236 7 44 17 24 41 22 23 44 38 52 41 2 44 -1.45 127 0 0 43 11 42 20 50 49.0 4 236 8 44 41 21 41 45 33 45 2 56 41 25 49 -1.47 128 0 0 43 35 33 20 50 48.3 3 237 9 45 5 38 42 9 1 45 27 19 41 49 13 -1.49 129 0 0 43 59 42 20 50 47.8 2 238 10 45 30 12 42 32 48 45 52 0 42 12 54 -1.52 130 0 0 44 24 8 20 50 47.4 2 238 10 45 55 4 42 56 52 46 16 58 42 36 53 -1.59 131 0 0 44 48 51 20 50 47.2 1 239 11 .. .. .. 43 21 12 .. .. .. 43 1 8 -1.81 132 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 43 45 47 .. .. .. 43 25 39 .... 133 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 43 50 24 .... Uncertainty in time = +/- 2 secs Prediction of 2023 Apr 29.2 Data for the target star ------------------------ * name: TYC 6247-00203-1 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 35 42.6638 DE: -20 58 54.852 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 35 42.6638 DE: -20 58 54.852 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (76) Freia asteroid class: approx. diameter [km]: 167 approx. diameter ["]: 0.077 distance from Earth [AU]: 2.96850 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#73 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): 0.016", 0.009", 106.534° remarks: * orbital elements for (76)Freia : Mean anomaly = 157.8897383466 deg Arg. of pericenter = 252.0010760626 deg Long. of node = 204.2844169940 deg Inclination = 2.1227899773 deg Eccentricity = 0.1668323647 Semimajor axis = 3.4122827652 AU Perihelion dist = 2.8430035624 AU Mag: H = 8.05, G = 0.15 Epoch of elements : MJD 60093.87145833 TDT (2023 May 29.8715) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#732023Apr24,11.52,2023,5,29,20.918581,0.064428,0.803235,-8.144212,0.653884,-0.001605,-0.000163,0.000001,0.000000 63.3776,-20.9975,-134.41,21.68,False TYC 6247-00203-1,17.59518437,-20.9819033,0.00,11.82,0.00,0.0,0,,17.61867442,-20.9975166,2.14,0.00,0,0,0 76,Freia,13.79,166.8,2.9685,0,0,-1.723,1.94,,8.4,0 0,157.7535,2023,5,29,252.0011,204.2844,2.1228,0.16683,3.41228,2.84300,8.07,5.0,0.15 1.117,0.0157,0.0087,107,0.0091,Known errors,-1.00,-1,-1,-1 20230529_0203-1,60063.19 ------ 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