IOTA/IOTA-ES occultation update for (2759) Idomeneus / UCAC4 442-036826 event on 2023 Nov 28, 12:38 UT Visible from Mexico, E Australia Summary ------- On 2023 Nov 28 UT, the 54.6 km diameter asteroid (2759) Idomeneus will occult a 12.5 mag star in the constellation Monoceros for observers along a path across Mexico, E Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.96 mag to 17.44 mag (the magnitude of the asteroid) for at most 5.800 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: 89 * date and approx. time of event: 2023 Nov 28, 12:26 - 2023 Nov 28, 12:49 * geocentric midpoint of event [JD]: 2460277.02667588 * magnitude of target star: 12.49 * magnitude drop [mag]: 4.96 * estimated maximum duration [s]: 5.800 * Moon: 98 % sunlit, 43° distance * Sun: 127° distance * rough path description: Mexico, E Australia The occultation path -------------------- * approximate projected width [km]: 55 * 1 sigma uncertainty interval [path widths]: +/- 0.54 * 1 sigma uncertainty interval [seconds]: +/- 5.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.019, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.001", 88°) * approx speed of asteroid's shadow [km/s]: 9.4143 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 442-036826 by 2759 Idomeneus on 2023 Nov 28 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 122 0 0 -27 1 52 12 49 40.1 0 92 -27 -26 47 2 -27 16 41 -26 31 3 -27 32 39 .... 123 0 0 -27 3 31 12 49 40.0 1 92 -27 -26 48 41 -27 18 20 -26 32 43 -27 34 17 -0.03 124 0 0 -27 4 41 12 49 39.7 2 91 -28 -26 49 51 -27 19 29 -26 33 53 -27 35 27 -0.05 125 0 0 -27 5 22 12 49 39.3 3 91 -28 -26 50 33 -27 20 10 -26 34 35 -27 36 7 -0.06 126 0 0 -27 5 34 12 49 38.8 4 90 -29 -26 50 45 -27 20 23 -26 34 47 -27 36 20 -0.06 127 0 0 -27 5 18 12 49 38.0 4 90 -30 -26 50 29 -27 20 6 -26 34 31 -27 36 3 -0.06 128 0 0 -27 4 32 12 49 37.1 5 89 -30 -26 49 43 -27 19 21 -26 33 45 -27 35 18 -0.06 129 0 0 -27 3 19 12 49 36.0 6 89 -31 -26 48 29 -27 18 8 -26 32 31 -27 34 5 -0.06 130 0 0 -27 1 36 12 49 34.8 7 88 -31 -26 46 47 -27 16 26 -26 30 49 -27 32 23 -0.06 131 0 0 -26 59 25 12 49 33.4 8 88 -32 -26 44 36 -27 14 15 -26 28 37 -27 30 13 -0.07 132 0 0 -26 56 46 12 49 31.9 9 88 -32 -26 41 56 -27 11 36 -26 25 57 -27 27 34 -0.07 133 0 0 -26 53 38 12 49 30.2 10 87 -33 -26 38 48 -27 8 29 -26 22 48 -27 24 27 -0.07 134 0 0 -26 50 2 12 49 28.3 11 87 -34 -26 35 11 -27 4 53 -26 19 11 -27 20 52 -0.07 135 0 0 -26 45 57 12 49 26.3 12 86 -34 -26 31 5 -27 0 49 -26 15 5 -27 16 48 -0.07 136 0 0 -26 41 24 12 49 24.1 12 86 -35 -26 26 32 -26 56 16 -26 10 30 -27 12 17 -0.07 137 0 0 -26 36 22 12 49 21.7 13 85 -35 -26 21 29 -26 51 15 -26 5 27 -27 7 16 -0.06 138 0 0 -26 30 53 12 49 19.2 14 85 -36 -26 15 59 -26 45 46 -25 59 56 -27 1 48 -0.06 139 0 0 -26 24 54 12 49 16.5 15 84 -36 -26 10 0 -26 39 49 -25 53 56 -26 55 52 -0.06 140 0 0 -26 18 28 12 49 13.7 16 84 -37 -26 3 32 -26 33 23 -25 47 27 -26 49 27 -0.06 141 0 0 -26 11 33 12 49 10.7 17 84 -37 -25 56 36 -26 26 29 -25 40 30 -26 42 34 -0.06 142 0 0 -26 4 10 12 49 7.5 18 83 -38 -25 49 12 -26 19 7 -25 33 5 -26 35 13 -0.06 143 0 0 -25 56 18 12 49 4.2 19 83 -38 -25 41 20 -26 11 17 -25 25 11 -26 27 24 -0.06 144 0 0 -25 47 58 12 49 0.7 20 82 -39 -25 32 59 -26 2 58 -25 16 49 -26 19 6 -0.06 145 0 0 -25 39 10 12 48 57.1 21 82 -39 -25 24 9 -25 54 11 -25 7 58 -26 10 21 -0.06 146 0 0 -25 29 54 12 48 53.3 21 81 -40 -25 14 51 -25 44 56 -24 58 39 -26 1 7 -0.06 147 0 0 -25 20 9 12 48 49.3 22 81 -40 -25 5 5 -25 35 12 -24 48 52 -25 51 25 -0.06 148 0 0 -25 9 56 12 48 45.1 23 81 -41 -24 54 51 -25 25 1 -24 38 36 -25 41 15 -0.06 149 0 0 -24 59 15 12 48 40.8 24 80 -41 -24 44 8 -25 14 21 -24 27 52 -25 30 36 -0.06 150 0 0 -24 48 5 12 48 36.3 25 80 -42 -24 32 57 -25 3 12 -24 16 39 -25 19 30 -0.06 151 0 0 -24 36 27 12 48 31.7 26 79 -42 -24 21 17 -24 51 36 -24 4 58 -25 7 55 -0.06 152 0 0 -24 24 21 12 48 26.9 27 79 -43 -24 9 10 -24 39 31 -23 52 48 -24 55 52 -0.06 153 0 0 -24 11 46 12 48 21.9 28 79 -43 -23 56 33 -24 26 58 -23 40 10 -24 43 21 -0.06 154 0 0 -23 58 43 12 48 16.7 29 78 -44 -23 43 29 -24 13 57 -23 27 4 -24 30 21 -0.06 155 0 0 -23 45 12 12 48 11.4 30 78 -44 -23 29 56 -24 0 28 -23 13 29 -24 16 54 -0.06 156 0 0 -23 31 13 12 48 5.9 31 78 -44 -23 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29.8 79 80 -46 - 3 34 20 - 4 8 8 - 3 16 7 - 4 26 20 -0.06 -155 0 0 - 3 18 19 12 40 17.1 80 82 -45 - 3 1 24 - 3 35 14 - 2 43 9 - 3 53 27 -0.07 -154 0 0 - 2 45 13 12 40 4.3 81 85 -45 - 2 28 16 - 3 2 9 - 2 10 1 - 3 20 23 -0.07 -153 0 0 - 2 11 57 12 39 51.5 82 88 -44 - 1 54 59 - 2 28 54 - 1 36 42 - 2 47 9 -0.07 -152 0 0 - 1 38 31 12 39 38.6 83 91 -44 - 1 21 32 - 1 55 30 - 1 3 15 - 2 13 46 -0.07 -151 0 0 - 1 4 57 12 39 25.7 84 97 -43 - 0 47 58 - 1 21 57 - 0 29 39 - 1 40 14 -0.07 -150 0 0 - 0 31 16 12 39 12.8 84 103 -43 - 0 14 15 - 0 48 16 0 4 5 - 1 6 34 -0.07 -149 0 0 0 2 33 12 38 59.8 85 112 -42 0 19 34 - 0 14 28 0 37 54 - 0 32 48 -0.07 -148 0 0 0 36 27 12 38 46.8 86 124 -42 0 53 29 0 19 25 1 11 50 0 1 5 -0.07 -147 0 0 1 10 26 12 38 33.8 86 138 -41 1 27 29 0 53 24 1 45 51 0 35 3 -0.07 -146 0 0 1 44 29 12 38 20.8 86 154 -41 2 1 32 1 27 26 2 19 55 1 9 5 -0.07 -145 0 0 2 18 36 12 38 7.8 86 169 -40 2 35 39 2 1 32 2 54 2 1 43 11 -0.07 -144 0 0 2 52 44 12 37 54.8 85 182 -39 3 9 48 2 35 41 3 28 12 2 17 19 -0.07 -143 0 0 3 26 55 12 37 41.8 85 192 -39 3 43 59 3 9 51 4 2 23 2 51 28 -0.07 -142 0 0 4 1 5 12 37 28.8 84 200 -38 4 18 10 3 44 1 4 36 34 3 25 39 -0.07 -141 0 0 4 35 16 12 37 15.9 83 205 -38 4 52 20 4 18 11 5 10 44 3 59 49 -0.07 -140 0 0 5 9 25 12 37 3.0 82 210 -37 5 26 29 4 52 20 5 44 53 4 33 58 -0.07 -139 0 0 5 43 31 12 36 50.1 81 213 -36 6 0 36 5 26 27 6 19 0 5 8 5 -0.07 -138 0 0 6 17 35 12 36 37.3 80 216 -36 6 34 40 6 0 31 6 53 4 5 42 9 -0.07 -137 0 0 6 51 35 12 36 24.5 79 218 -35 7 8 39 6 34 31 7 27 3 6 16 9 -0.07 -136 0 0 7 25 30 12 36 11.8 78 220 -34 7 42 34 7 8 26 8 0 57 6 50 5 -0.07 -135 0 0 7 59 19 12 35 59.1 77 222 -34 8 16 23 7 42 16 8 34 45 7 23 55 -0.07 -134 0 0 8 33 2 12 35 46.5 76 223 -33 8 50 5 8 15 59 9 8 27 7 57 38 -0.07 -133 0 0 9 6 37 12 35 34.1 75 225 -32 9 23 39 8 49 35 9 42 1 8 31 14 -0.07 -132 0 0 9 40 3 12 35 21.6 74 226 -31 9 57 5 9 23 2 10 15 26 9 4 43 -0.07 -131 0 0 10 13 21 12 35 9.3 73 227 -31 10 30 22 9 56 20 10 48 42 9 38 2 -0.07 -130 0 0 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34 17 41 4 16 31 33 -0.08 -117 0 0 17 36 7 12 32 29.6 58 235 -21 17 52 50 17 19 25 18 10 50 17 1 26 -0.08 -116 0 0 18 5 37 12 32 19.2 57 236 -20 18 22 18 17 48 57 18 40 16 17 31 0 -0.08 -115 0 0 18 34 46 12 32 9.0 56 236 -19 18 51 25 18 18 8 19 9 22 18 0 13 -0.08 -114 0 0 19 3 35 12 31 59.0 55 237 -18 19 20 12 18 46 58 19 38 6 18 29 6 -0.08 -113 0 0 19 32 2 12 31 49.2 54 237 -18 19 48 37 19 15 28 20 6 30 18 57 37 -0.08 -112 0 0 20 0 8 12 31 39.5 53 238 -17 20 16 41 19 43 35 20 34 31 19 25 47 -0.08 -111 0 0 20 27 51 12 31 30.0 52 238 -16 20 44 22 20 11 21 21 2 10 19 53 34 -0.08 -110 0 0 20 55 12 12 31 20.7 51 239 -15 21 11 41 20 38 43 21 29 26 20 20 59 -0.08 -109 0 0 21 22 9 12 31 11.5 50 239 -15 21 38 36 21 5 43 21 56 19 20 48 1 -0.08 -108 0 0 21 48 43 12 31 2.5 49 239 -14 22 5 8 21 32 19 22 22 49 21 14 40 -0.08 -107 0 0 22 14 54 12 30 53.7 48 240 -13 22 31 16 21 58 32 22 48 55 21 40 55 -0.08 -106 0 0 22 40 40 12 30 45.1 47 240 -13 22 57 0 22 24 20 23 14 36 22 6 45 -0.08 -105 0 0 23 6 2 12 30 36.7 46 241 -12 23 22 20 22 49 44 23 39 53 22 32 12 -0.08 -104 0 0 23 30 59 12 30 28.4 45 241 -11 23 47 14 23 14 43 24 4 46 22 57 13 -0.08 -103 0 0 23 55 31 12 30 20.3 44 242 -10 24 11 44 23 39 18 24 29 13 23 21 50 -0.08 -102 0 0 24 19 37 12 30 12.4 43 242 -10 24 35 48 24 3 27 24 53 15 23 46 2 -0.08 -101 0 0 24 43 18 12 30 4.7 42 243 -9 24 59 27 24 27 10 25 16 51 24 9 47 -0.08 -100 0 0 25 6 34 12 29 57.1 41 243 -8 25 22 40 24 50 28 25 40 2 24 33 8 -0.08 - 99 0 0 25 29 23 12 29 49.7 40 244 -8 25 45 28 25 13 20 26 2 46 24 56 2 -0.08 - 98 0 0 25 51 47 12 29 42.5 39 244 -7 26 7 49 25 35 45 26 25 5 25 18 30 -0.08 - 97 0 0 26 13 44 12 29 35.5 38 244 -6 26 29 43 25 57 45 26 46 57 25 40 32 -0.08 - 96 0 0 26 35 14 12 29 28.7 37 245 -6 26 51 12 26 19 18 27 8 23 26 2 8 -0.08 - 95 0 0 26 56 19 12 29 22.0 36 245 -5 27 12 13 26 40 24 27 29 22 26 23 17 -0.08 - 94 0 0 27 16 56 12 29 15.6 35 246 -4 27 32 49 27 1 4 27 49 55 26 43 59 -0.08 - 93 0 0 27 37 7 12 29 9.3 35 246 -4 27 52 57 27 21 17 28 10 1 27 4 14 -0.08 - 92 0 0 27 56 50 12 29 3.1 34 247 -3 28 12 38 27 41 3 28 29 40 27 24 3 -0.08 - 91 0 0 28 16 7 12 28 57.2 33 247 -2 28 31 53 28 0 22 28 48 52 27 43 24 -0.08 - 90 0 0 28 34 57 12 28 51.4 32 248 -2 28 50 40 28 19 14 29 7 37 28 2 19 -0.08 - 89 0 0 28 53 20 12 28 45.8 31 248 -1 29 9 1 28 37 39 29 25 55 28 20 46 -0.08 - 88 0 0 29 11 15 12 28 40.4 30 249 0 29 26 54 28 55 37 29 43 46 28 38 46 -0.08 - 87 0 0 29 28 43 12 28 35.1 29 249 0 29 44 20 29 13 7 30 1 9 28 56 19 -0.08 - 86 0 0 29 45 45 12 28 30.0 28 250 1 30 1 19 29 30 11 30 18 6 29 13 25 -0.08 - 85 0 0 30 2 19 12 28 25.1 27 250 2 30 17 51 29 46 47 30 34 35 29 30 3 -0.08 - 84 0 0 30 18 25 12 28 20.3 26 251 2 30 33 56 30 2 56 30 50 38 29 46 14 -0.08 - 83 0 0 30 34 5 12 28 15.7 26 251 3 30 49 33 30 18 37 31 6 13 30 1 58 -0.08 - 82 0 0 30 49 17 12 28 11.3 25 252 4 31 4 43 30 33 51 31 21 21 30 17 15 -0.08 - 81 0 0 31 4 2 12 28 7.0 24 252 4 31 19 26 30 48 39 31 36 2 30 32 4 -0.08 - 80 0 0 31 18 20 12 28 2.9 23 253 5 31 33 42 31 2 59 31 50 16 30 46 26 -0.08 - 79 0 0 31 32 11 12 27 59.0 22 253 6 31 47 31 31 16 51 32 4 3 31 0 21 -0.08 - 78 0 0 31 45 35 12 27 55.2 21 254 6 32 0 53 31 30 17 32 17 22 31 13 48 -0.08 - 77 0 0 31 58 31 12 27 51.6 20 254 7 32 13 48 31 43 15 32 30 15 31 26 49 -0.08 - 76 0 0 32 11 1 12 27 48.1 19 255 7 32 26 15 31 55 46 32 42 41 31 39 22 -0.08 - 75 0 0 32 23 3 12 27 44.8 19 255 8 32 38 16 32 7 50 32 54 39 31 51 28 -0.08 - 74 0 0 32 34 38 12 27 41.7 18 256 9 32 49 49 32 19 27 33 6 11 32 3 7 -0.08 - 73 0 0 32 45 47 12 27 38.7 17 257 9 33 0 56 32 30 37 33 17 16 32 14 18 -0.08 - 72 0 0 32 56 28 12 27 35.8 16 257 10 33 11 36 32 41 20 33 27 54 32 25 3 -0.07 - 71 0 0 33 6 42 12 27 33.1 15 258 10 33 21 49 32 51 36 33 38 5 32 35 21 -0.07 - 70 0 0 33 16 30 12 27 30.6 14 258 11 33 31 35 33 1 25 33 47 50 32 45 11 -0.07 - 69 0 0 33 25 51 12 27 28.2 13 259 12 33 40 54 33 10 48 33 57 8 32 54 35 -0.07 - 68 0 0 33 34 45 12 27 25.9 13 259 12 33 49 47 33 19 43 34 5 59 33 3 32 -0.07 - 67 0 0 33 43 12 12 27 23.8 12 260 13 33 58 13 33 28 11 34 14 23 33 12 2 -0.07 - 66 0 0 33 51 12 12 27 21.9 11 260 13 34 6 12 33 36 13 34 22 21 33 20 5 -0.07 - 65 0 0 33 58 46 12 27 20.1 10 261 14 34 13 45 33 43 48 34 29 52 33 27 41 -0.07 - 64 0 0 34 5 53 12 27 18.4 9 261 14 34 20 51 33 50 56 34 36 57 33 34 51 -0.07 - 63 0 0 34 12 34 12 27 16.9 8 262 15 34 27 30 33 57 38 34 43 35 33 41 33 -0.07 - 62 0 0 34 18 48 12 27 15.5 8 263 16 34 33 43 34 3 53 34 49 47 33 47 49 -0.07 - 61 0 0 34 24 35 12 27 14.3 7 263 16 34 39 29 34 9 41 34 55 32 33 53 38 -0.07 - 60 0 0 34 29 56 12 27 13.2 6 264 17 34 44 49 34 15 2 35 0 51 33 59 1 -0.07 - 59 0 0 34 34 50 12 27 12.2 5 264 17 34 49 42 34 19 57 35 5 44 34 3 57 -0.07 - 58 0 0 34 39 17 12 27 11.4 4 265 18 34 54 9 34 24 26 35 10 10 34 8 26 -0.07 - 57 0 0 34 43 18 12 27 10.8 4 265 18 34 58 9 34 28 27 35 14 9 34 12 28 -0.07 - 56 0 0 34 46 53 12 27 10.2 3 266 19 35 1 43 34 32 2 35 17 43 34 16 4 -0.07 - 55 0 0 34 50 1 12 27 9.9 2 267 19 35 4 51 34 35 11 35 20 49 34 19 13 -0.08 - 54 0 0 34 52 42 12 27 9.6 1 267 20 35 7 31 34 37 53 35 23 30 34 21 55 -0.08 - 53 0 0 34 54 57 12 27 9.5 0 268 21 35 9 46 34 40 8 35 25 44 34 24 11 -0.14 Uncertainty in time = +/- 6 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: UCAC4 442-036826 * constellation : Monoceros * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 28 40.4159 DE: -01 45 47.092 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 28 40.4159 DE: -01 45 47.092 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2759) Idomeneus asteroid class: approx. diameter [km]: 55 approx. diameter ["]: 0.017 distance from Earth [AU]: 4.42790 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#86 date of fit: 2023 Oct 11 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): 0.019", 0.001", 87.894° remarks: * orbital elements for (2759)Idomeneus : Mean anomaly = 292.1819543777 deg Arg. of pericenter = 7.5315866969 deg Long. of node = 171.2224626009 deg Inclination = 21.9370822677 deg Eccentricity = 0.0655229770 Semimajor axis = 5.1966756079 AU Perihelion dist = 4.8561739515 AU Mag: H = 10.09, G = 0.15 Epoch of elements : MJD 60276.52673611 TDT (2023 Nov 28.5267) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#862023Oct11,5.80,2023,11,28,12.640221,-0.035187,0.058725,-4.563006,-2.722883,-0.004260,0.002336,0.000001,0.000000 -144.2881,-1.8102,-12.63,-21.31,False UCAC4 442-036826,7.47789330,-1.7630809,0.00,12.49,0.00,0.0,0,,7.49820088,-1.8102320,4.97,0.00,0,0,0 2759,Idomeneus,17.44,54.600,4.4279,0,0,-0.604,-5.41,,4.0,0 0,292.1381,2023,11,28,7.5316,171.2225,21.9371,0.06552,5.19668,4.85617,10.08,5.0,0.15 1.538,0.0190,0.0008,88,0.0190,Known errors,-1.00,0,-1,-1 20231128_036826,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:10 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org