IOTA/IOTA-ES occultation update for (310) Margarita / TYC 6195-01674-1 event on 2024 Sep 19, 11:10 UT Visible from Summary ------- On 2024 Sep 19 UT, the 32.455 km diameter asteroid (310) Margarita will occult a 11.9 mag star in the constellation Libra for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 3.66 mag to 15.55 mag (the magnitude of the asteroid) for at most 1.040 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: 2024 Sep 19, 11:08 - 2024 Sep 19, 11:12 * geocentric midpoint of event [JD]: 2460572.96544104 * magnitude of target star: 11.93 * magnitude drop [mag]: 3.66 * estimated maximum duration [s]: 1.040 * Moon: 97 % sunlit, 134° distance * Sun: 65° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 57 * 1 sigma uncertainty interval [path widths]: +/- 0.07 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.001", 98°) * approx speed of asteroid's shadow [km/s]: 31.2700 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6195-01674-1 by 310 Margarita on 2024 Sep 19 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 21 0 0 .. .. .... .. .. .. .. .. .. 59 59 29 .. .. .. 59 56 50 .. .. .. .... 22 0 0 59 53 55 11 8 19.4 1 132 31 59 33 31 60 14 32 59 30 52 60 17 16 .... 23 0 0 59 27 40 11 8 19.4 1 132 31 59 7 19 59 48 16 59 4 40 59 50 59 -0.84 24 0 0 59 1 12 11 8 19.6 2 133 31 58 40 53 59 21 45 58 38 14 59 24 28 -1.06 25 0 0 58 34 31 11 8 19.7 3 134 32 58 14 15 58 55 2 58 11 36 58 57 44 -1.16 26 0 0 58 7 38 11 8 19.9 3 135 32 57 47 24 58 28 6 57 44 46 58 30 47 -1.22 27 0 0 57 40 34 11 8 20.2 4 136 32 57 20 23 58 0 58 57 17 46 58 3 40 -1.26 28 0 0 57 13 20 11 8 20.5 5 137 32 56 53 13 57 33 41 56 50 35 57 36 22 -1.29 29 0 0 56 45 57 11 8 20.9 5 137 33 56 25 53 57 6 14 56 23 16 57 8 55 -1.31 30 0 0 56 18 26 11 8 21.4 6 138 33 55 58 25 56 38 39 55 55 49 56 41 19 -1.33 31 0 0 55 50 48 11 8 21.9 7 139 33 55 30 51 56 10 57 55 28 15 56 13 37 -1.34 32 0 0 55 23 4 11 8 22.4 8 140 33 55 3 11 55 43 9 55 0 36 55 45 48 -1.35 33 0 0 54 55 15 11 8 23.1 8 141 34 54 35 27 55 15 16 54 32 52 55 17 54 -1.36 34 0 0 54 27 22 11 8 23.8 9 142 34 54 7 39 54 47 19 54 5 4 54 49 57 -1.37 35 0 0 53 59 27 11 8 24.5 10 143 34 53 39 48 54 19 19 53 37 14 54 21 56 -1.38 36 0 0 53 31 31 11 8 25.4 10 143 34 53 11 56 53 51 18 53 9 23 53 53 54 -1.38 37 0 0 53 3 34 11 8 26.3 11 144 34 52 44 4 53 23 16 52 41 31 53 25 52 -1.39 38 0 0 52 35 37 11 8 27.2 12 145 34 52 16 12 52 55 15 52 13 40 52 57 50 -1.39 39 0 0 52 7 43 11 8 28.2 13 146 34 51 48 23 52 27 15 51 45 51 52 29 50 -1.40 40 0 0 51 39 51 11 8 29.3 13 147 34 51 20 36 51 59 18 51 18 5 52 1 52 -1.40 41 0 0 51 12 4 11 8 30.5 14 148 34 50 52 53 51 31 25 50 50 24 51 33 58 -1.40 42 0 0 50 44 21 11 8 31.7 15 148 34 50 25 16 51 3 38 50 22 47 51 6 10 -1.41 43 0 0 50 16 45 11 8 33.0 16 149 34 49 57 45 50 35 56 49 55 17 50 38 28 -1.41 44 0 0 49 49 16 11 8 34.4 16 150 34 49 30 22 50 8 21 49 27 54 50 10 52 -1.41 45 0 0 49 21 55 11 8 35.8 17 151 34 49 3 6 49 40 55 49 0 39 49 43 26 -1.41 46 0 0 48 54 44 11 8 37.3 18 152 34 48 36 1 49 13 39 48 33 34 49 16 8 -1.42 47 0 0 48 27 43 11 8 38.9 18 153 34 48 9 5 48 46 32 48 6 39 48 49 1 -1.42 48 0 0 48 0 54 11 8 40.5 19 154 34 47 42 21 48 19 38 47 39 56 48 22 6 -1.42 49 0 0 47 34 17 11 8 42.2 20 155 33 47 15 50 47 52 55 47 13 25 47 55 22 -1.42 50 0 0 47 7 53 11 8 44.0 20 156 33 46 49 31 47 26 26 46 47 8 47 28 52 -1.42 51 0 0 46 41 44 11 8 45.8 21 156 33 46 23 28 47 0 11 46 21 5 47 2 37 -1.43 52 0 0 46 15 50 11 8 47.7 22 157 33 45 57 39 46 34 12 45 55 17 46 36 37 -1.43 53 0 0 45 50 13 11 8 49.7 22 158 32 45 32 7 46 8 28 45 29 45 46 10 53 -1.43 54 0 0 45 24 52 11 8 51.7 23 159 32 45 6 52 45 43 3 45 4 31 45 45 26 -1.43 55 0 0 44 59 50 11 8 53.7 24 160 32 44 41 55 45 17 55 44 39 34 45 20 18 -1.43 56 0 0 44 35 6 11 8 55.9 24 161 31 44 17 16 44 53 6 44 14 57 44 55 28 -1.43 57 0 0 44 10 42 11 8 58.0 25 162 31 43 52 57 44 28 37 43 50 39 44 30 58 -1.44 58 0 0 43 46 39 11 9 0.3 26 163 31 43 28 59 44 4 28 43 26 41 44 6 49 -1.44 59 0 0 43 22 57 11 9 2.6 26 164 30 43 5 22 43 40 41 43 3 4 43 43 1 -1.44 60 0 0 42 59 37 11 9 4.9 27 165 30 42 42 7 43 17 15 42 39 50 43 19 35 -1.44 61 0 0 42 36 39 11 9 7.3 27 166 29 42 19 14 42 54 13 42 16 58 42 56 32 -1.44 62 0 0 42 14 5 11 9 9.8 28 167 29 41 56 45 42 31 34 41 54 30 42 33 52 -1.44 63 0 0 41 51 55 11 9 12.2 28 168 28 41 34 40 42 9 19 41 32 25 42 11 37 -1.44 64 0 0 41 30 10 11 9 14.8 29 169 28 41 13 0 41 47 29 41 10 45 41 49 46 -1.44 65 0 0 41 8 51 11 9 17.4 29 170 27 40 51 45 41 26 5 40 49 31 41 28 21 -1.45 66 0 0 40 47 57 11 9 20.0 30 171 27 40 30 56 41 5 7 40 28 42 41 7 22 -1.45 67 0 0 40 27 30 11 9 22.6 30 172 26 40 10 33 40 44 35 40 8 20 40 46 50 -1.45 68 0 0 40 7 30 11 9 25.3 31 173 26 39 50 37 40 24 31 39 48 25 40 26 45 -1.45 69 0 0 39 47 58 11 9 28.0 31 174 25 39 31 9 40 4 54 39 28 57 40 7 8 -1.45 70 0 0 39 28 53 11 9 30.8 32 176 24 39 12 9 39 45 46 39 9 58 39 47 59 -1.45 71 0 0 39 10 18 11 9 33.6 32 177 24 38 53 37 39 27 6 38 51 27 39 29 19 -1.45 72 0 0 38 52 11 11 9 36.4 32 178 23 38 35 35 39 8 55 38 33 25 39 11 7 -1.45 73 0 0 38 34 34 11 9 39.3 33 179 22 38 18 2 38 51 14 38 15 52 38 53 26 -1.45 74 0 0 38 17 28 11 9 42.1 33 180 22 38 0 59 38 34 4 37 58 50 38 36 15 -1.45 75 0 0 38 0 52 11 9 45.0 33 181 21 37 44 26 38 17 24 37 42 17 38 19 35 -1.46 76 0 0 37 44 46 11 9 47.9 33 182 20 37 28 24 38 1 15 37 26 16 38 3 26 -1.46 77 0 0 37 29 12 11 9 50.9 34 184 20 37 12 53 37 45 38 37 10 45 37 47 48 -1.46 78 0 0 37 14 9 11 9 53.8 34 185 19 36 57 54 37 30 32 36 55 46 37 32 41 -1.46 79 0 0 36 59 38 11 9 56.8 34 186 18 36 43 26 37 15 58 36 41 19 37 18 7 -1.46 80 0 0 36 45 40 11 9 59.8 34 187 17 36 29 30 37 1 56 36 27 24 37 4 5 -1.46 81 0 0 36 32 13 11 10 2.7 34 188 17 36 16 7 36 48 27 36 14 1 36 50 35 -1.46 82 0 0 36 19 19 11 10 5.7 34 189 16 36 3 16 36 35 30 36 1 10 36 37 38 -1.46 83 0 0 36 6 58 11 10 8.7 34 191 15 35 50 58 36 23 6 35 48 52 36 25 14 -1.46 84 0 0 35 55 11 11 10 11.7 34 192 14 35 39 13 36 11 16 35 37 7 36 13 23 -1.46 85 0 0 35 43 57 11 10 14.7 34 193 14 35 28 1 35 59 59 35 25 56 36 2 6 -1.46 86 0 0 35 33 16 11 10 17.7 34 194 13 35 17 23 35 49 17 35 15 18 35 51 23 -1.46 87 0 0 35 23 10 11 10 20.7 34 195 12 35 7 19 35 39 8 35 5 14 35 41 14 -1.46 88 0 0 35 13 37 11 10 23.7 34 196 11 34 57 48 35 29 33 34 55 44 35 31 39 -1.46 89 0 0 35 4 39 11 10 26.7 34 197 10 34 48 52 35 20 33 34 46 48 35 22 38 -1.46 90 0 0 34 56 15 11 10 29.7 34 199 10 34 40 29 35 12 7 34 38 26 35 14 12 -1.47 91 0 0 34 48 25 11 10 32.6 34 200 9 34 32 41 35 4 16 34 30 38 35 6 21 -1.47 92 0 0 34 41 10 11 10 35.6 34 201 8 34 25 28 34 56 59 34 23 25 34 59 4 -1.47 93 0 0 34 34 30 11 10 38.5 33 202 7 34 18 49 34 50 17 34 16 46 34 52 22 -1.47 94 0 0 34 28 25 11 10 41.4 33 203 6 34 12 45 34 44 11 34 10 43 34 46 15 -1.47 95 0 0 34 22 54 11 10 44.3 33 204 5 34 7 16 34 38 39 34 5 13 34 40 43 -1.47 96 0 0 34 17 59 11 10 47.2 33 205 5 34 2 21 34 33 42 34 0 19 34 35 46 -1.47 97 0 0 34 13 38 11 10 50.1 32 206 4 33 58 2 34 29 21 33 56 0 34 31 25 -1.47 98 0 0 34 9 53 11 10 52.9 32 207 3 33 54 17 34 25 35 33 52 15 34 27 39 -1.47 99 0 0 34 6 43 11 10 55.7 32 208 2 33 51 8 34 22 24 33 49 6 34 24 27 -1.47 100 0 0 34 4 8 11 10 58.5 31 210 1 33 48 34 34 19 48 33 46 32 34 21 52 -1.47 101 0 0 34 2 8 11 11 1.2 31 211 0 33 46 34 34 17 48 33 44 32 34 19 52 -1.47 102 0 0 34 0 44 11 11 3.9 31 212 0 33 45 10 34 16 23 33 43 8 34 18 27 -1.47 103 0 0 33 59 54 11 11 6.6 30 213 -1 33 44 21 34 15 34 33 42 19 34 17 37 -1.47 104 0 0 33 59 41 11 11 9.2 30 213 -2 33 44 8 34 15 20 33 42 6 34 17 23 -1.47 105 0 0 34 0 2 11 11 11.8 29 214 -3 33 44 29 34 15 41 33 42 27 34 17 45 -1.47 106 0 0 34 0 59 11 11 14.4 29 215 -4 33 45 25 34 16 38 33 43 24 34 18 42 -1.47 107 0 0 34 2 30 11 11 16.9 28 216 -5 33 46 57 34 18 10 33 44 55 34 20 14 -1.47 108 0 0 34 4 37 11 11 19.4 28 217 -5 33 49 3 34 20 17 33 47 1 34 22 21 -1.47 109 0 0 34 7 19 11 11 21.8 27 218 -6 33 51 45 34 23 0 33 49 43 34 25 4 -1.47 110 0 0 34 10 36 11 11 24.2 27 219 -7 33 55 1 34 26 17 33 52 59 34 28 21 -1.47 111 0 0 34 14 28 11 11 26.6 26 220 -8 33 58 52 34 30 10 33 56 50 34 32 14 -1.47 112 0 0 34 18 55 11 11 28.9 25 221 -9 34 3 18 34 34 38 34 1 16 34 36 42 -1.47 113 0 0 34 23 57 11 11 31.1 25 222 -10 34 8 19 34 39 40 34 6 16 34 41 45 -1.47 114 0 0 34 29 33 11 11 33.3 24 222 -10 34 13 54 34 45 18 34 11 52 34 47 22 -1.48 115 0 0 34 35 44 11 11 35.4 24 223 -11 34 20 4 34 51 30 34 18 1 34 53 34 -1.48 116 0 0 34 42 29 11 11 37.5 23 224 -12 34 26 48 34 58 17 34 24 45 35 0 21 -1.48 117 0 0 34 49 49 11 11 39.5 22 225 -13 34 34 6 35 5 38 34 32 3 35 7 43 -1.48 118 0 0 34 57 42 11 11 41.5 22 226 -14 34 41 58 35 13 33 34 39 55 35 15 38 -1.48 119 0 0 35 6 10 11 11 43.4 21 226 -14 34 50 24 35 22 3 34 48 21 35 24 8 -1.48 120 0 0 35 15 12 11 11 45.3 20 227 -15 34 59 24 35 31 6 34 57 20 35 33 12 -1.48 121 0 0 35 24 47 11 11 47.0 19 228 -16 35 8 57 35 40 44 35 6 53 35 42 50 -1.48 122 0 0 35 34 56 11 11 48.8 19 228 -17 35 19 4 35 50 55 35 17 0 35 53 1 -1.48 123 0 0 35 45 38 11 11 50.4 18 229 -17 35 29 44 36 1 39 35 27 39 36 3 46 -1.48 124 0 0 35 56 53 11 11 52.0 17 230 -18 35 40 57 36 12 57 35 38 52 36 15 3 -1.48 125 0 0 36 8 41 11 11 53.5 16 231 -19 35 52 42 36 24 47 35 50 37 36 26 54 -1.48 126 0 0 36 21 2 11 11 55.0 16 231 -20 36 5 0 36 37 10 36 2 55 36 39 18 -1.48 127 0 0 36 33 55 11 11 56.4 15 232 -20 36 17 51 36 50 6 36 15 45 36 52 14 -1.48 128 0 0 36 47 20 11 11 57.7 14 233 -21 36 31 13 37 3 34 36 29 6 37 5 42 -1.49 129 0 0 37 1 16 11 11 59.0 13 233 -22 36 45 6 37 17 33 36 43 0 37 19 42 -1.49 130 0 0 37 15 45 11 12 0.2 13 234 -22 36 59 32 37 32 5 36 57 25 37 34 14 -1.49 131 0 0 37 30 44 11 12 1.3 12 235 -23 37 14 28 37 47 7 37 12 20 37 49 17 -1.49 132 0 0 37 46 14 11 12 2.3 11 235 -24 37 29 55 38 2 41 37 27 47 38 4 50 -1.49 133 0 0 38 2 14 11 12 3.3 10 236 -24 37 45 52 38 18 44 37 43 43 38 20 55 -1.50 134 0 0 38 18 45 11 12 4.2 9 237 -25 38 2 19 38 35 18 38 0 10 38 37 29 -1.50 135 0 0 38 35 45 11 12 5.0 9 237 -26 38 19 15 38 52 22 38 17 6 38 54 34 -1.50 136 0 0 38 53 15 11 12 5.7 8 238 -26 38 36 41 39 9 56 38 34 32 39 12 7 -1.51 137 0 0 39 11 13 11 12 6.4 7 239 -27 38 54 36 39 27 58 38 52 26 39 30 10 -1.51 138 0 0 39 29 40 11 12 7.0 6 239 -27 39 12 58 39 46 28 39 10 48 39 48 41 -1.52 139 0 0 39 48 34 11 12 7.5 5 240 -28 39 31 49 40 5 27 39 29 38 40 7 40 -1.53 140 0 0 40 7 56 11 12 7.9 4 241 -28 39 51 7 40 24 53 39 48 55 40 27 7 -1.54 141 0 0 40 27 45 11 12 8.3 4 241 -29 40 10 52 40 44 47 40 8 39 40 47 1 -1.56 142 0 0 40 48 1 11 12 8.6 3 242 -29 40 31 3 41 5 7 40 28 50 41 7 22 -1.59 143 0 0 41 8 43 11 12 8.8 2 243 -30 40 51 41 41 25 53 40 49 27 41 28 9 -1.64 144 0 0 41 29 50 11 12 8.9 1 243 -30 41 12 43 41 47 5 41 10 29 41 49 21 -1.78 145 0 0 41 51 21 11 12 9.0 0 244 -31 41 34 10 42 8 41 41 31 55 42 10 57 -2.62 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 6195-01674-1 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 15 59 28.3122 DE: -18 57 00.697 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 15 59 28.3120 DE: -18 57 00.696 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.9 * B mag [mag]: 12.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (310) Margarita asteroid class: approx. diameter [km]: 32 approx. diameter ["]: 0.016 distance from Earth [AU]: 2.87080 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#59 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): 0.011", 0.001", 98.326° remarks: * orbital elements for (310)Margarita : Mean anomaly = 56.1706249900 deg Arg. of pericenter = 324.8609316569 deg Long. of node = 229.0406948686 deg Inclination = 3.1718665254 deg Eccentricity = 0.1170236121 Semimajor axis = 2.7611928915 AU Perihelion dist = 2.4380681256 AU Mag: H = 10.16, G = 0.15 Epoch of elements : MJD 60572.46544096 TDT (2024 Sep 19.4654) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#592023Apr24,1.04,2024,9,19,11.170585,0.154714,0.809436,17.337820,-3.303246,0.004988,-0.000941,-0.000001,0.000000 73.8128,-19.0205,10.85,1.19,False TYC 6195-01674-1,15.99119788,-18.9501937,12.37,11.93,11.69,0.0,0,,16.01480284,-19.0204911,3.65,3.45,0,0,0 310,Margarita,15.55,32.455,2.8708,0,0,3.745,-10.12,,1.6,0 0,56.0706,2024,9,19,324.8609,229.0407,3.1719,0.11702,2.76119,2.43807,10.16,5.0,0.15 1.066,0.0107,0.0009,98,0.0010,Known errors,1.10,0,-1,-1 20240919_1674-1,60140.57 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 13:43 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org