IOTA/IOTA-ES occultation update for (773) Irmintraud / TYC 5801-00863-1 event on 2023 Jul 31, 00:28 UT Visible from Europe Summary ------- On 2023 Jul 31 UT, the 94.7 km diameter asteroid (773) Irmintraud will occult a 10.6 mag star in the constellation Capricornus for observers along a path across Europe. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.41 mag to 12.92 mag (the magnitude of the asteroid) for at most 8.490 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 Jul 31, 00:24 - 2023 Jul 31, 00:32 * geocentric midpoint of event [JD]: 2460156.51981987 * magnitude of target star: 10.63 * magnitude drop [mag]: 2.41 * estimated maximum duration [s]: 8.490 * Moon: 95 % sunlit, 45° distance * Sun: 161° distance * rough path description: Europe The occultation path -------------------- * approximate projected width [km]: 244 * 1 sigma uncertainty interval [path widths]: +/- 0.30 * 1 sigma uncertainty interval [seconds]: +/- 2.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.027, +/- 0.020) * 1 sigma uncertainty ellipse (major, minor, PA): (0.033", 0.006", 53°) * approx speed of asteroid's shadow [km/s]: 11.1553 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5801-00863-1 by 773 Irmintraud on 2023 Jul 31 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 - 37 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 68 49 38 .... - 36 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 68 30 1 .... - 35 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 69 2 15 .. .. .. 68 10 14 .... - 34 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 68 42 9 .. .. .. 67 50 19 .... - 33 0 0 69 53 26 0 32 9.9 0 136 0 .. .. .. 68 21 55 .. .. .. 67 30 15 .... - 32 0 0 69 32 41 0 32 9.8 1 137 0 .. .. .. 68 1 32 .. .. .. 67 10 4 -1.35 - 31 0 0 69 11 48 0 32 9.6 1 137 -1 70 51 33 67 41 3 .. .. .. 66 49 47 -1.75 - 30 0 0 68 50 47 0 32 9.3 2 138 -1 70 29 59 67 20 27 .. .. .. 66 29 23 -1.94 - 29 0 0 68 29 40 0 32 8.8 2 139 -2 70 8 18 66 59 46 71 13 13 66 8 55 -2.05 - 28 0 0 68 8 27 0 32 8.2 3 140 -2 69 46 29 66 39 0 70 50 58 65 48 22 -2.12 - 27 0 0 67 47 10 0 32 7.5 3 141 -3 69 24 36 66 18 10 70 28 36 65 27 47 -2.17 - 26 0 0 67 25 49 0 32 6.7 4 142 -3 69 2 37 65 57 17 70 6 8 65 7 8 -2.21 - 25 0 0 67 4 25 0 32 5.7 4 143 -4 68 40 36 65 36 22 69 43 37 64 46 28 -2.24 - 24 0 0 66 42 59 0 32 4.6 5 144 -4 68 18 31 65 15 26 69 21 4 64 25 47 -2.26 - 23 0 0 66 21 32 0 32 3.3 5 145 -4 67 56 26 64 54 30 68 58 28 64 5 6 -2.28 - 22 0 0 66 0 6 0 32 2.0 6 146 -5 67 34 20 64 33 34 68 35 52 63 44 26 -2.29 - 21 0 0 65 38 40 0 32 0.4 6 147 -5 67 12 14 64 12 40 68 13 16 63 23 47 -2.31 - 20 0 0 65 17 17 0 31 58.8 7 148 -6 66 50 10 63 51 48 67 50 41 63 3 11 -2.32 - 19 0 0 64 55 56 0 31 57.0 8 149 -6 66 28 9 63 30 59 67 28 10 62 42 38 -2.33 - 18 0 0 64 34 39 0 31 55.0 8 150 -7 66 6 12 63 10 14 67 5 42 62 22 9 -2.33 - 17 0 0 64 13 27 0 31 52.9 9 150 -7 65 44 19 62 49 33 66 43 18 62 1 45 -2.34 - 16 0 0 63 52 20 0 31 50.7 9 151 -8 65 22 31 62 28 58 66 21 1 61 41 26 -2.35 - 15 0 0 63 31 19 0 31 48.3 10 152 -8 65 0 51 62 8 30 65 58 50 61 21 14 -2.36 - 14 0 0 63 10 26 0 31 45.8 10 153 -8 64 39 17 61 48 8 65 36 46 61 1 8 -2.36 - 13 0 0 62 49 40 0 31 43.2 11 154 -9 64 17 52 61 27 54 65 14 51 60 41 11 -2.36 - 12 0 0 62 29 3 0 31 40.4 11 155 -9 63 56 35 61 7 49 64 53 6 60 21 22 -2.37 - 11 0 0 62 8 36 0 31 37.4 12 156 -10 63 35 29 60 47 53 64 31 31 60 1 42 -2.37 - 10 0 0 61 48 19 0 31 34.3 12 157 -10 63 14 33 60 28 7 64 10 6 59 42 12 -2.38 - 9 0 0 61 28 13 0 31 31.1 13 158 -10 62 53 49 60 8 31 63 48 54 59 22 52 -2.38 - 8 0 0 61 8 18 0 31 27.8 13 159 -11 62 33 17 59 49 7 63 27 54 59 3 44 -2.38 - 7 0 0 60 48 36 0 31 24.3 14 160 -11 62 12 57 59 29 55 63 7 8 58 44 48 -2.39 - 6 0 0 60 29 7 0 31 20.7 14 161 -11 61 52 52 59 10 56 62 46 36 58 26 4 -2.39 - 5 0 0 60 9 51 0 31 16.9 15 162 -12 61 33 0 58 52 10 62 26 18 58 7 33 -2.39 - 4 0 0 59 50 50 0 31 13.0 15 163 -12 61 13 24 58 33 37 62 6 16 57 49 16 -2.39 - 3 0 0 59 32 4 0 31 9.0 15 164 -12 60 54 3 58 15 20 61 46 31 57 31 13 -2.39 - 2 0 0 59 13 34 0 31 4.9 16 164 -12 60 34 58 57 57 17 61 27 1 57 13 25 -2.40 - 1 0 0 58 55 19 0 31 0.6 16 165 -13 60 16 11 57 39 30 61 7 49 56 55 53 -2.40 0 0 0 58 37 21 0 30 56.2 17 166 -13 59 57 40 57 21 59 60 48 56 56 38 36 -2.40 1 0 0 58 19 40 0 30 51.7 17 167 -13 59 39 27 57 4 45 60 30 20 56 21 36 -2.40 2 0 0 58 2 17 0 30 47.1 17 168 -13 59 21 33 56 47 48 60 12 4 56 4 52 -2.40 3 0 0 57 45 12 0 30 42.4 18 169 -14 59 3 58 56 31 8 59 54 7 55 48 26 -2.40 4 0 0 57 28 26 0 30 37.6 18 170 -14 58 46 42 56 14 47 59 36 30 55 32 17 -2.40 5 0 0 57 11 59 0 30 32.7 19 171 -14 58 29 46 55 58 44 59 19 13 55 16 27 -2.40 6 0 0 56 55 51 0 30 27.7 19 172 -14 58 13 10 55 42 59 59 2 17 55 0 55 -2.40 7 0 0 56 40 3 0 30 22.6 19 173 -14 57 56 55 55 27 35 58 45 43 54 45 43 -2.41 8 0 0 56 24 36 0 30 17.4 20 174 -14 57 41 1 55 12 30 58 29 30 54 30 50 -2.41 9 0 0 56 9 29 0 30 12.1 20 175 -15 57 25 28 54 57 45 58 13 40 54 16 16 -2.41 10 0 0 55 54 44 0 30 6.8 20 176 -15 57 10 18 54 43 20 57 58 12 54 2 3 -2.41 11 0 0 55 40 20 0 30 1.3 20 177 -15 56 55 29 54 29 17 57 43 6 53 48 11 -2.41 12 0 0 55 26 18 0 29 55.8 21 178 -15 56 41 4 54 15 35 57 28 24 53 34 39 -2.41 13 0 0 55 12 38 0 29 50.3 21 179 -15 56 27 1 54 2 14 57 14 5 53 21 28 -2.41 14 0 0 54 59 20 0 29 44.6 21 180 -15 56 13 21 53 49 15 57 0 11 53 8 40 -2.41 15 0 0 54 46 26 0 29 38.9 21 181 -15 56 0 5 53 36 38 56 46 40 52 56 13 -2.41 16 0 0 54 33 54 0 29 33.2 22 182 -15 55 47 13 53 24 24 56 33 34 52 44 8 -2.41 17 0 0 54 21 46 0 29 27.4 22 183 -15 55 34 45 53 12 33 56 20 52 52 32 25 -2.41 18 0 0 54 10 1 0 29 21.5 22 184 -15 55 22 42 53 1 4 56 8 35 52 21 5 -2.41 19 0 0 53 58 40 0 29 15.6 22 185 -15 55 11 3 52 49 59 55 56 44 52 10 8 -2.41 20 0 0 53 47 43 0 29 9.7 22 187 -15 54 59 48 52 39 17 55 45 17 51 59 34 -2.41 21 0 0 53 37 11 0 29 3.8 22 188 -15 54 48 59 52 28 58 55 34 17 51 49 23 -2.41 22 0 0 53 27 3 0 28 57.8 22 189 -14 54 38 35 52 19 4 55 23 42 51 39 36 -2.41 23 0 0 53 17 19 0 28 51.8 22 190 -14 54 28 37 52 9 34 55 13 33 51 30 13 -2.41 24 0 0 53 8 1 0 28 45.8 22 191 -14 54 19 4 52 0 28 55 3 50 51 21 14 -2.41 25 0 0 52 59 8 0 28 39.7 22 192 -14 54 9 58 51 51 47 54 54 34 51 12 39 -2.41 26 0 0 52 50 40 0 28 33.7 22 193 -14 54 1 17 51 43 30 54 45 44 51 4 28 -2.41 27 0 0 52 42 38 0 28 27.6 22 194 -14 53 53 2 51 35 38 54 37 22 50 56 42 -2.41 28 0 0 52 35 2 0 28 21.6 22 195 -13 53 45 14 51 28 11 54 29 26 50 49 21 -2.42 29 0 0 52 27 51 0 28 15.5 22 196 -13 53 37 53 51 21 10 54 21 57 50 42 24 -2.42 30 0 0 52 21 6 0 28 9.5 22 197 -13 53 30 58 51 14 34 54 14 55 50 35 53 -2.42 31 0 0 52 14 47 0 28 3.5 22 198 -13 53 24 30 51 8 23 54 8 20 50 29 46 -2.42 32 0 0 52 8 55 0 27 57.5 22 199 -12 53 18 29 51 2 38 54 2 13 50 24 5 -2.42 33 0 0 52 3 29 0 27 51.5 22 200 -12 53 12 55 50 57 19 53 56 34 50 18 50 -2.42 34 0 0 51 58 29 0 27 45.6 22 201 -12 53 7 48 50 52 25 53 51 22 50 14 0 -2.42 35 0 0 51 53 56 0 27 39.7 22 202 -12 53 3 8 50 47 58 53 46 38 50 9 35 -2.42 36 0 0 51 49 49 0 27 33.8 22 203 -11 52 58 56 50 43 56 53 42 22 50 5 37 -2.42 37 0 0 51 46 10 0 27 28.0 21 204 -11 52 55 11 50 40 21 53 38 34 50 2 4 -2.42 38 0 0 51 42 57 0 27 22.2 21 205 -11 52 51 54 50 37 12 53 35 13 49 58 57 -2.42 39 0 0 51 40 11 0 27 16.5 21 206 -10 52 49 4 50 34 29 53 32 21 49 56 16 -2.42 40 0 0 51 37 52 0 27 10.9 21 207 -10 52 46 42 50 32 13 53 29 57 49 54 0 -2.42 41 0 0 51 36 0 0 27 5.3 21 208 -9 52 44 48 50 30 23 53 28 1 49 52 12 -2.43 42 0 0 51 34 35 0 26 59.7 20 209 -9 52 43 22 50 28 59 53 26 34 49 50 49 -2.43 43 0 0 51 33 37 0 26 54.3 20 210 -9 52 42 23 50 28 2 53 25 35 49 49 52 -2.43 44 0 0 51 33 7 0 26 48.9 20 211 -8 52 41 53 50 27 32 53 25 4 49 49 22 -2.43 45 0 0 51 33 4 0 26 43.5 19 212 -8 52 41 50 50 27 29 53 25 2 49 49 19 -2.43 46 0 0 51 33 28 0 26 38.3 19 213 -7 52 42 15 50 27 52 53 25 28 49 49 41 -2.43 47 0 0 51 34 19 0 26 33.2 19 214 -7 52 43 9 50 28 42 53 26 22 49 50 30 -2.43 48 0 0 51 35 38 0 26 28.1 18 214 -6 52 44 30 50 29 58 53 27 45 49 51 45 -2.44 49 0 0 51 37 24 0 26 23.1 18 215 -6 52 46 19 50 31 41 53 29 37 49 53 26 -2.44 50 0 0 51 39 37 0 26 18.3 18 216 -5 52 48 36 50 33 51 53 31 57 49 55 34 -2.44 51 0 0 51 42 18 0 26 13.5 17 217 -5 52 51 22 50 36 27 53 34 46 49 58 9 -2.44 52 0 0 51 45 26 0 26 8.9 17 218 -4 52 54 35 50 39 31 53 38 3 50 1 9 -2.44 53 0 0 51 49 1 0 26 4.3 16 219 -4 52 58 16 50 43 0 53 41 48 50 4 36 -2.44 54 0 0 51 53 3 0 25 59.9 16 220 -3 53 2 26 50 46 57 53 46 2 50 8 29 -2.45 55 0 0 51 57 33 0 25 55.6 15 221 -3 53 7 3 50 51 20 53 50 45 50 12 49 -2.45 56 0 0 52 2 30 0 25 51.4 15 222 -2 53 12 8 50 56 9 53 55 55 50 17 34 -2.45 57 0 0 52 7 54 0 25 47.3 15 223 -2 53 17 41 51 1 25 54 1 34 50 22 46 -2.45 58 0 0 52 13 44 0 25 43.4 14 223 -1 53 23 41 51 7 7 54 7 42 50 28 24 -2.45 59 0 0 52 20 2 0 25 39.6 14 224 0 53 30 10 51 13 16 54 14 17 50 34 27 -2.46 60 0 0 52 26 47 0 25 35.9 13 225 0 53 37 6 51 19 51 54 21 21 50 40 57 -2.46 61 0 0 52 33 59 0 25 32.4 13 226 1 53 44 29 51 26 52 54 28 52 50 47 53 -2.46 62 0 0 52 41 37 0 25 29.0 12 227 1 53 52 20 51 34 20 54 36 52 50 55 14 -2.46 63 0 0 52 49 42 0 25 25.7 12 228 2 54 0 38 51 42 13 54 45 20 51 3 1 -2.47 64 0 0 52 58 13 0 25 22.6 11 229 2 54 9 24 51 50 32 54 54 15 51 11 13 -2.47 65 0 0 53 7 10 0 25 19.7 10 229 3 54 18 36 51 59 17 55 3 37 51 19 51 -2.47 66 0 0 53 16 34 0 25 16.9 10 230 4 54 28 16 52 8 27 55 13 28 51 28 54 -2.48 67 0 0 53 26 24 0 25 14.2 9 231 4 54 38 22 52 18 2 55 23 45 51 38 22 -2.48 68 0 0 53 36 39 0 25 11.7 9 232 5 54 48 55 52 28 3 55 34 30 51 48 15 -2.49 69 0 0 53 47 21 0 25 9.4 8 233 5 54 59 54 52 38 29 55 45 42 51 58 32 -2.49 70 0 0 53 58 27 0 25 7.2 8 234 6 55 11 20 52 49 19 55 57 20 52 9 14 -2.50 71 0 0 54 9 59 0 25 5.2 7 234 7 55 23 11 53 0 35 56 9 25 52 20 20 -2.50 72 0 0 54 21 56 0 25 3.3 6 235 7 55 35 28 53 12 14 56 21 56 52 31 51 -2.51 73 0 0 54 34 18 0 25 1.6 6 236 8 55 48 11 53 24 18 56 34 54 52 43 45 -2.52 74 0 0 54 47 5 0 25 0.1 5 237 9 56 1 19 53 36 46 56 48 17 52 56 3 -2.53 75 0 0 55 0 15 0 24 58.7 5 238 9 56 14 53 53 49 37 57 2 6 53 8 44 -2.54 76 0 0 55 13 50 0 24 57.6 4 238 10 56 28 51 54 2 52 57 16 21 53 21 48 -2.56 77 0 0 55 27 48 0 24 56.5 3 239 10 56 43 13 54 16 30 57 31 0 53 35 14 -2.58 78 0 0 55 42 9 0 24 55.7 3 240 11 56 58 0 54 30 30 57 46 4 53 49 4 -2.61 79 0 0 55 56 54 0 24 55.0 2 241 12 57 13 10 54 44 53 58 1 33 54 3 15 -2.66 80 0 0 56 12 1 0 24 54.5 2 242 12 57 28 44 54 59 38 58 17 25 54 17 48 -2.74 81 0 0 56 27 31 0 24 54.2 1 243 13 57 44 41 55 14 44 .. .. .. 54 32 42 -2.92 82 0 0 56 43 22 0 24 54.0 0 243 13 .. .. .. 55 30 12 .. .. .. 54 47 57 -3.73 83 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 55 46 0 .. .. .. 55 3 32 .... Uncertainty in time = +/- 4 secs Prediction of 2023 May 29.0 Data for the target star ------------------------ * name: TYC 5801-00863-1 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 56 37.5795 DE: -14 06 03.733 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 56 37.5795 DE: -14 06 03.733 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (773) Irmintraud asteroid class: approx. diameter [km]: 95 approx. diameter ["]: 0.078 distance from Earth [AU]: 1.66990 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#93 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): 0.033", 0.006", 53.318° remarks: * orbital elements for (773)Irmintraud : Mean anomaly = 20.1458734843 deg Arg. of pericenter = 333.2202959501 deg Long. of node = 322.2893030047 deg Inclination = 16.6672764363 deg Eccentricity = 0.0783092772 Semimajor axis = 2.8574725882 AU Perihelion dist = 2.6337059753 AU Mag: H = 9.16, G = 0.15 Epoch of elements : MJD 60156.01972222 TDT (2023 Jul 31.0197) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#932023Apr24,8.49,2023,7,31,0.475677,0.128422,0.912614,-6.234897,0.877497,-0.001722,-0.000483,0.000001,0.000000 13.9633,-13.9881,174.49,18.37,False TYC 5801-00863-1,21.94377207,-14.1010369,0.00,10.63,0.00,0.0,0,,21.96527548,-13.9880502,2.41,0.00,0,0,0 773,Irmintraud,12.92,94.7,1.6699,0,0,-2.255,4.62,,5.2,0 0,19.9378,2023,7,30,333.2203,322.2893,16.6673,0.07831,2.85747,2.63371,9.16,5.0,0.15 1.301,0.0330,0.0057,53,0.0236,Known errors,-1.00,-1,-1,-1 20230731_0863-1,60092.99 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 May 28, 23:43 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org