IOTA/IOTA-ES occultation update for (1274) Delportia / UCAC4 339-186916 event on 2024 Nov 12, 15:17 UT Visible from Summary ------- On 2024 Nov 12 UT, the 11.1155998625383 km diameter asteroid (1274) Delportia will occult a 11.3 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.55 mag to 16.83 mag (the magnitude of the asteroid) for at most 0.340 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: 2024 Nov 12, 15:15 - 2024 Nov 12, 15:20 * geocentric midpoint of event [JD]: 2460627.13723734 * magnitude of target star: 11.29 * magnitude drop [mag]: 5.55 * estimated maximum duration [s]: 0.340 * Moon: 86 % sunlit, 73° distance * Sun: 62° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 15 * 1 sigma uncertainty interval [path widths]: +/- 0.28 * 1 sigma uncertainty interval [seconds]: +/- 0.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.010, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.010", 0.002", 76°) * approx speed of asteroid's shadow [km/s]: 33.1711 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 339-186916 by 1274 Delportia on 2024 Nov 12 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 - 64 0 0 25 46 1 15 15 11.9 1 115 45 25 41 35 25 50 27 25 39 3 25 53 0 .... - 63 0 0 25 21 14 15 15 11.9 2 115 46 25 16 49 25 25 40 25 14 18 25 28 12 -0.45 - 62 0 0 24 56 52 15 15 12.1 3 116 46 24 52 28 25 1 17 24 49 57 25 3 49 -0.61 - 61 0 0 24 32 55 15 15 12.3 3 116 47 24 28 31 24 37 19 24 26 1 24 39 50 -0.68 - 60 0 0 24 9 23 15 15 12.6 4 117 47 24 5 0 24 13 46 24 2 30 24 16 16 -0.72 - 59 0 0 23 46 16 15 15 13.0 5 117 48 23 41 54 23 50 39 23 39 25 23 53 9 -0.75 - 58 0 0 23 23 36 15 15 13.4 6 118 48 23 19 15 23 27 58 23 16 46 23 30 27 -0.76 - 57 0 0 23 1 24 15 15 14.0 7 118 49 22 57 3 23 5 44 22 54 35 23 8 13 -0.78 - 56 0 0 22 39 38 15 15 14.6 8 118 49 22 35 19 22 43 58 22 32 51 22 46 27 -0.79 - 55 0 0 22 18 21 15 15 15.3 9 119 50 22 14 2 22 22 40 22 11 34 22 25 8 -0.80 - 54 0 0 21 57 32 15 15 16.0 10 119 50 21 53 14 22 1 50 21 50 47 22 4 18 -0.80 - 53 0 0 21 37 12 15 15 16.8 11 120 51 21 32 54 21 41 29 21 30 28 21 43 56 -0.81 - 52 0 0 21 17 21 15 15 17.7 12 120 51 21 13 4 21 21 37 21 10 38 21 24 4 -0.81 - 51 0 0 20 57 59 15 15 18.7 13 120 51 20 53 44 21 2 15 20 51 18 21 4 42 -0.82 - 50 0 0 20 39 8 15 15 19.8 14 121 51 20 34 53 20 43 24 20 32 28 20 45 50 -0.82 - 49 0 0 20 20 48 15 15 20.9 15 121 52 20 16 33 20 25 2 20 14 8 20 27 28 -0.82 - 48 0 0 20 2 58 15 15 22.1 16 122 52 19 58 44 20 7 12 19 56 19 20 9 37 -0.82 - 47 0 0 19 45 39 15 15 23.3 17 122 52 19 41 26 19 49 52 19 39 1 19 52 17 -0.83 - 46 0 0 19 28 51 15 15 24.6 18 122 52 19 24 39 19 33 4 19 22 15 19 35 28 -0.83 - 45 0 0 19 12 36 15 15 26.0 19 123 52 19 8 24 19 16 48 19 6 0 19 19 12 -0.83 - 44 0 0 18 56 52 15 15 27.5 20 123 52 18 52 41 19 1 3 18 50 18 19 3 27 -0.83 - 43 0 0 18 41 41 15 15 29.0 21 124 52 18 37 30 18 45 51 18 35 7 18 48 15 -0.83 - 42 0 0 18 27 2 15 15 30.6 22 124 52 18 22 52 18 31 12 18 20 29 18 33 35 -0.84 - 41 0 0 18 12 56 15 15 32.3 23 125 52 18 8 46 18 17 5 18 6 24 18 19 28 -0.84 - 40 0 0 17 59 22 15 15 34.0 24 125 52 17 55 13 18 3 32 17 52 52 18 5 54 -0.84 - 39 0 0 17 46 22 15 15 35.8 25 126 52 17 42 14 17 50 31 17 39 52 17 52 53 -0.84 - 38 0 0 17 33 56 15 15 37.6 26 126 52 17 29 48 17 38 4 17 27 26 17 40 26 -0.84 - 37 0 0 17 22 3 15 15 39.5 26 127 51 17 17 55 17 26 10 17 15 34 17 28 32 -0.84 - 36 0 0 17 10 43 15 15 41.5 27 127 51 17 6 36 17 14 51 17 4 16 17 17 12 -0.84 - 35 0 0 16 59 58 15 15 43.5 28 128 51 16 55 51 17 4 5 16 53 31 17 6 26 -0.84 - 34 0 0 16 49 47 15 15 45.6 29 128 51 16 45 41 16 53 53 16 43 20 16 56 14 -0.85 - 33 0 0 16 40 10 15 15 47.7 30 129 50 16 36 4 16 44 16 16 33 44 16 46 36 -0.85 - 32 0 0 16 31 7 15 15 49.9 31 129 50 16 27 1 16 35 13 16 24 41 16 37 33 -0.85 - 31 0 0 16 22 39 15 15 52.1 32 130 50 16 18 34 16 26 44 16 16 14 16 29 4 -0.85 - 30 0 0 16 14 45 15 15 54.4 32 131 49 16 10 40 16 18 50 16 8 21 16 21 10 -0.85 - 29 0 0 16 7 26 15 15 56.8 33 131 49 16 3 21 16 11 31 16 1 2 16 13 51 -0.85 - 28 0 0 16 0 42 15 15 59.2 34 132 48 15 56 38 16 4 46 15 54 18 16 7 6 -0.85 - 27 0 0 15 54 32 15 16 1.6 35 132 48 15 50 28 15 58 37 15 48 9 16 0 56 -0.85 - 26 0 0 15 48 58 15 16 4.1 36 133 47 15 44 54 15 53 2 15 42 35 15 55 22 -0.85 - 25 0 0 15 43 59 15 16 6.6 36 134 47 15 39 55 15 48 3 15 37 36 15 50 22 -0.85 - 24 0 0 15 39 35 15 16 9.2 37 135 46 15 35 31 15 43 38 15 33 12 15 45 58 -0.85 - 23 0 0 15 35 46 15 16 11.9 38 135 45 15 31 42 15 39 49 15 29 24 15 42 8 -0.85 - 22 0 0 15 32 32 15 16 14.5 39 136 45 15 28 29 15 36 35 15 26 10 15 38 55 -0.85 - 21 0 0 15 29 54 15 16 17.2 39 137 44 15 25 51 15 33 57 15 23 32 15 36 16 -0.85 - 20 0 0 15 27 51 15 16 20.0 40 138 43 15 23 48 15 31 54 15 21 29 15 34 13 -0.86 - 19 0 0 15 26 23 15 16 22.8 41 139 43 15 22 20 15 30 26 15 20 1 15 32 45 -0.86 - 18 0 0 15 25 30 15 16 25.6 41 140 42 15 21 28 15 29 34 15 19 9 15 31 53 -0.86 - 17 0 0 15 25 14 15 16 28.5 42 141 41 15 21 11 15 29 17 15 18 52 15 31 36 -0.86 - 16 0 0 15 25 32 15 16 31.4 42 141 41 15 21 29 15 29 35 15 19 11 15 31 54 -0.86 - 15 0 0 15 26 26 15 16 34.3 43 142 40 15 22 23 15 30 29 15 20 4 15 32 48 -0.86 - 14 0 0 15 27 55 15 16 37.3 44 144 39 15 23 52 15 31 59 15 21 34 15 34 18 -0.86 - 13 0 0 15 30 0 15 16 40.3 44 145 38 15 25 57 15 34 4 15 23 39 15 36 23 -0.86 - 12 0 0 15 32 41 15 16 43.3 45 146 37 15 28 38 15 36 44 15 26 19 15 39 4 -0.86 - 11 0 0 15 35 57 15 16 46.4 45 147 37 15 31 53 15 40 0 15 29 34 15 42 20 -0.86 - 10 0 0 15 39 48 15 16 49.5 46 148 36 15 35 44 15 43 52 15 33 25 15 46 11 -0.86 - 9 0 0 15 44 15 15 16 52.6 46 149 35 15 40 11 15 48 19 15 37 52 15 50 38 -0.86 - 8 0 0 15 49 17 15 16 55.7 47 150 34 15 45 13 15 53 21 15 42 53 15 55 40 -0.86 - 7 0 0 15 54 54 15 16 58.9 47 151 33 15 50 50 15 58 58 15 48 30 16 1 18 -0.86 - 6 0 0 16 1 6 15 17 2.1 47 153 32 15 57 2 16 5 11 15 54 43 16 7 31 -0.86 - 5 0 0 16 7 54 15 17 5.3 48 154 32 16 3 50 16 11 59 16 1 30 16 14 19 -0.86 - 4 0 0 16 15 17 15 17 8.5 48 155 31 16 11 12 16 19 23 16 8 52 16 21 43 -0.86 - 3 0 0 16 23 15 15 17 11.7 48 157 30 16 19 10 16 27 21 16 16 50 16 29 41 -0.86 - 2 0 0 16 31 48 15 17 15.0 48 158 29 16 27 43 16 35 54 16 25 22 16 38 15 -0.86 - 1 0 0 16 40 56 15 17 18.2 49 159 28 16 36 50 16 45 3 16 34 30 16 47 23 -0.86 0 0 0 16 50 39 15 17 21.5 49 161 27 16 46 33 16 54 46 16 44 12 16 57 7 -0.86 1 0 0 17 0 57 15 17 24.8 49 162 26 16 56 50 17 5 4 16 54 29 17 7 25 -0.86 2 0 0 17 11 49 15 17 28.1 49 164 25 17 7 41 17 15 56 17 5 20 17 18 18 -0.86 3 0 0 17 23 15 15 17 31.4 49 165 24 17 19 7 17 27 23 17 16 46 17 29 45 -0.86 4 0 0 17 35 16 15 17 34.7 49 167 23 17 31 8 17 39 25 17 28 46 17 41 47 -0.86 5 0 0 17 47 51 15 17 38.0 49 168 22 17 43 42 17 52 0 17 41 20 17 54 23 -0.86 6 0 0 18 1 0 15 17 41.4 49 169 22 17 56 51 18 5 10 17 54 28 18 7 32 -0.86 7 0 0 18 14 43 15 17 44.7 49 171 21 18 10 33 18 18 53 18 8 10 18 21 16 -0.86 8 0 0 18 28 59 15 17 48.0 49 172 20 18 24 49 18 33 10 18 22 26 18 35 33 -0.86 9 0 0 18 43 49 15 17 51.3 49 174 19 18 39 38 18 48 0 18 37 14 18 50 24 -0.86 10 0 0 18 59 12 15 17 54.6 49 175 18 18 55 0 19 3 24 18 52 36 19 5 48 -0.86 11 0 0 19 15 8 15 17 57.9 49 177 17 19 10 55 19 19 21 19 8 31 19 21 45 -0.86 12 0 0 19 31 37 15 18 1.2 48 178 16 19 27 23 19 35 50 19 24 59 19 38 15 -0.86 13 0 0 19 48 38 15 18 4.5 48 180 15 19 44 24 19 52 52 19 41 59 19 55 17 -0.86 14 0 0 20 6 11 15 18 7.8 48 181 14 20 1 56 20 10 26 19 59 31 20 12 51 -0.86 15 0 0 20 24 16 15 18 11.1 47 182 13 20 20 1 20 28 31 20 17 35 20 30 57 -0.86 16 0 0 20 42 52 15 18 14.3 47 184 12 20 38 36 20 47 9 20 36 11 20 49 35 -0.86 17 0 0 21 2 0 15 18 17.5 47 185 11 20 57 43 21 6 17 20 55 17 21 8 44 -0.86 18 0 0 21 21 38 15 18 20.8 46 186 10 21 17 21 21 25 56 21 14 54 21 28 23 -0.86 19 0 0 21 41 48 15 18 24.0 46 188 9 21 37 29 21 46 6 21 35 2 21 48 34 -0.86 20 0 0 22 2 27 15 18 27.1 45 189 8 21 58 8 22 6 46 21 55 40 22 9 14 -0.86 21 0 0 22 23 35 15 18 30.3 45 190 7 22 19 16 22 27 55 22 16 47 22 30 24 -0.86 22 0 0 22 45 13 15 18 33.4 44 191 6 22 40 52 22 49 34 22 38 24 22 52 3 -0.86 23 0 0 23 7 20 15 18 36.5 44 193 5 23 2 58 23 11 41 23 0 29 23 14 11 -0.86 24 0 0 23 29 54 15 18 39.5 43 194 4 23 25 32 23 34 17 23 23 2 23 36 47 -0.86 25 0 0 23 52 56 15 18 42.6 43 195 3 23 48 33 23 57 20 23 46 3 23 59 50 -0.86 26 0 0 24 16 25 15 18 45.6 42 196 2 24 12 1 24 20 50 24 9 31 24 23 21 -0.86 27 0 0 24 40 21 15 18 48.5 41 197 1 24 35 57 24 44 47 24 33 25 24 47 18 -0.86 28 0 0 25 4 43 15 18 51.4 41 198 0 25 0 18 25 9 9 24 57 46 25 11 41 -0.86 29 0 0 25 29 30 15 18 54.3 40 199 -1 25 25 4 25 33 57 25 22 32 25 36 30 -0.86 30 0 0 25 54 42 15 18 57.1 39 200 -2 25 50 15 25 59 10 25 47 42 26 1 43 -0.86 31 0 0 26 20 18 15 18 59.9 39 201 -3 26 15 50 26 24 47 26 13 17 26 27 21 -0.86 32 0 0 26 46 18 15 19 2.7 38 202 -4 26 41 48 26 50 47 26 39 15 26 53 21 -0.86 33 0 0 27 12 39 15 19 5.4 37 203 -5 27 8 9 27 17 10 27 5 35 27 19 45 -0.86 34 0 0 27 39 23 15 19 8.0 36 204 -6 27 34 52 27 43 55 27 32 17 27 46 30 -0.86 35 0 0 28 6 28 15 19 10.6 36 205 -7 28 1 56 28 11 1 27 59 21 28 13 36 -0.86 36 0 0 28 33 53 15 19 13.2 35 206 -8 28 29 20 28 38 27 28 26 45 28 41 3 -0.86 37 0 0 29 1 38 15 19 15.7 34 207 -9 28 57 4 29 6 12 28 54 28 29 8 49 -0.86 38 0 0 29 29 42 15 19 18.1 33 208 -10 29 25 7 29 34 17 29 22 30 29 36 54 -0.86 39 0 0 29 58 3 15 19 20.5 32 209 -11 29 53 27 30 2 39 29 50 50 30 5 17 -0.86 40 0 0 30 26 41 15 19 22.8 31 210 -12 30 22 5 30 31 18 30 19 27 30 33 56 -0.86 41 0 0 30 55 35 15 19 25.1 31 210 -13 30 50 58 31 0 13 30 48 20 31 2 52 -0.86 42 0 0 31 24 45 15 19 27.3 30 211 -14 31 20 6 31 29 24 31 17 28 31 32 3 -0.86 43 0 0 31 54 8 15 19 29.4 29 212 -15 31 49 29 31 58 48 31 46 50 32 1 28 -0.86 44 0 0 32 23 45 15 19 31.5 28 213 -16 32 19 5 32 28 26 32 16 25 32 31 6 -0.86 45 0 0 32 53 34 15 19 33.5 27 214 -17 32 48 53 32 58 15 32 46 13 33 0 56 -0.86 46 0 0 33 23 34 15 19 35.4 26 214 -18 33 18 52 33 28 16 33 16 12 33 30 58 -0.86 47 0 0 33 53 44 15 19 37.3 25 215 -19 33 49 2 33 58 27 33 46 20 34 1 9 -0.86 48 0 0 34 24 3 15 19 39.1 24 216 -20 34 19 20 34 28 47 34 16 38 34 31 29 -0.86 49 0 0 34 54 31 15 19 40.9 24 217 -20 34 49 47 34 59 15 34 47 5 35 1 58 -0.86 50 0 0 35 25 6 15 19 42.6 23 217 -21 35 20 21 35 29 51 35 17 38 35 32 34 -0.86 51 0 0 35 55 46 15 19 44.2 22 218 -22 35 51 1 36 0 32 35 48 18 36 3 16 -0.86 52 0 0 36 26 32 15 19 45.7 21 219 -23 36 21 46 36 31 19 36 19 2 36 34 3 -0.86 53 0 0 36 57 22 15 19 47.2 20 219 -24 36 52 35 37 2 9 36 49 51 37 4 53 -0.87 54 0 0 37 28 14 15 19 48.6 19 220 -25 37 23 26 37 33 2 37 20 42 37 35 47 -0.87 55 0 0 37 59 8 15 19 49.9 18 221 -26 37 54 20 38 3 57 37 51 35 38 6 42 -0.87 56 0 0 38 30 3 15 19 51.2 17 222 -26 38 25 14 38 34 52 38 22 29 38 37 37 -0.87 57 0 0 39 0 57 15 19 52.4 16 222 -27 38 56 7 39 5 47 38 53 22 39 8 32 -0.87 58 0 0 39 31 50 15 19 53.5 15 223 -28 39 27 0 39 36 40 39 24 14 39 39 26 -0.87 59 0 0 40 2 40 15 19 54.5 14 224 -29 39 57 49 40 7 31 39 55 4 40 10 17 -0.87 60 0 0 40 33 26 15 19 55.5 14 224 -30 40 28 35 40 38 18 40 25 49 40 41 4 -0.87 61 0 0 41 4 8 15 19 56.4 13 225 -30 40 59 17 41 9 0 40 56 31 41 11 47 -0.87 62 0 0 41 34 44 15 19 57.3 12 226 -31 41 29 53 41 39 37 41 27 6 41 42 24 -0.87 63 0 0 42 5 14 15 19 58.1 11 226 -32 42 0 22 42 10 6 41 57 35 42 12 54 -0.87 64 0 0 42 35 36 15 19 58.8 10 227 -32 42 30 43 42 40 29 42 27 57 42 43 16 -0.87 65 0 0 43 5 49 15 19 59.4 9 228 -33 43 0 56 43 10 42 42 58 9 43 13 30 -0.87 66 0 0 43 35 53 15 20 0.0 8 228 -34 43 31 0 43 40 46 43 28 13 43 43 34 -0.88 67 0 0 44 5 46 15 20 0.5 7 229 -34 44 0 53 44 10 39 43 58 5 44 13 27 -0.88 68 0 0 44 35 28 15 20 1.0 7 230 -35 44 30 34 44 40 21 44 27 47 44 43 9 -0.88 69 0 0 45 4 57 15 20 1.4 6 231 -36 45 0 4 45 9 51 44 57 16 45 12 39 -0.88 70 0 0 45 34 13 15 20 1.7 5 231 -36 45 29 20 45 39 7 45 26 32 45 41 55 -0.89 71 0 0 46 3 16 15 20 2.0 4 232 -37 45 58 22 46 8 10 45 55 35 46 10 58 -0.89 72 0 0 46 32 3 15 20 2.2 3 233 -37 46 27 10 46 36 57 46 24 22 46 39 45 -0.90 73 0 0 47 0 35 15 20 2.4 2 234 -38 46 55 42 47 5 29 46 52 54 47 8 17 -0.92 74 0 0 47 28 51 15 20 2.5 1 234 -38 47 23 57 47 33 45 47 21 10 47 36 33 -0.95 75 0 0 47 56 50 15 20 2.6 1 235 -39 47 51 56 48 1 43 47 49 9 48 4 31 -1.07 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 339-186916 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 38 57.6395 DE: -22 16 43.352 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 38 57.6395 DE: -22 16 43.352 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.3 * B mag [mag]: 12.0 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1274) Delportia asteroid class: approx. diameter [km]: 11 approx. diameter ["]: 0.006 distance from Earth [AU]: 2.54250 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#48 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): 0.010", 0.002", 75.836° remarks: * orbital elements for (1274)Delportia : Mean anomaly = 90.7506876799 deg Arg. of pericenter = 244.8587822160 deg Long. of node = 327.0386456320 deg Inclination = 4.3947199332 deg Eccentricity = 0.1140739317 Semimajor axis = 2.2289243038 AU Perihelion dist = 1.9746621450 AU Mag: H = 11.93, G = 0.15 Epoch of elements : MJD 60626.63723708 TDT (2024 Nov 12.6372) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#482023Apr24,0.34,2024,11,12,15.293696,-0.143745,0.636622,18.265372,4.112947,0.004893,0.000801,-0.000001,0.000000 13.4568,-22.2233,-53.35,-17.94,False UCAC4 339-186916,19.64934436,-22.2787087,11.98,11.29,10.92,0.1,0,,19.67379026,-22.2233146,5.54,5.47,0,0,0 1274,Delportia,16.83,11.300,2.5425,0,0,4.550,14.23,,0.8,0 0,90.5619,2024,11,12,244.8588,327.0386,4.3947,0.11407,2.22892,1.97466,11.94,5.0,0.15 1.286,0.0103,0.0017,76,0.0017,Known errors,0.89,0,-1,-1 20241112_186916,60140.69 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:40 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org