IOTA/IOTA-ES occultation update for (654) Zelinda / UCAC4 397-117479 event on 2024 Nov 04, 01:22 UT Visible from Summary ------- On 2024 Nov 04 UT, the 130.245603530205 km diameter asteroid (654) Zelinda will occult a 11.6 mag star in the constellation Aquila for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.73 mag to 14.26 mag (the magnitude of the asteroid) for at most 5.710 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 Nov 04, 01:19 - 2024 Nov 04, 01:25 * geocentric midpoint of event [JD]: 2460618.55710995 * magnitude of target star: 11.62 * magnitude drop [mag]: 2.73 * estimated maximum duration [s]: 5.710 * Moon: 6 % sunlit, 47° distance * Sun: 74° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 201 * 1 sigma uncertainty interval [path widths]: +/- 0.05 * 1 sigma uncertainty interval [seconds]: +/- 0.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.006, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.007", 0.002", 62°) * approx speed of asteroid's shadow [km/s]: 22.8541 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 397-117479 by 654 Zelinda on 2024 Nov 4 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 125 0 0 .. .. .... .. .. .. .. .. .. -57 57 18 .. .. .. -58 2 54 .. .. .. .... 126 0 0 -57 10 24 1 19 13.9 0 109 43 -58 8 55 -56 13 4 -58 14 31 -56 7 43 .... 127 0 0 -57 21 55 1 19 14.0 1 108 43 -58 20 23 -56 24 39 -58 25 58 -56 19 18 1.00 128 0 0 -57 33 16 1 19 14.1 2 107 43 -58 31 40 -56 36 4 -58 37 15 -56 30 44 1.06 129 0 0 -57 44 28 1 19 14.3 2 106 43 -58 42 48 -56 47 19 -58 48 22 -56 41 59 1.09 130 0 0 -57 55 29 1 19 14.4 3 106 43 -58 53 45 -56 58 25 -58 59 19 -56 53 5 1.11 131 0 0 -58 6 20 1 19 14.7 3 105 43 -59 4 32 -57 9 20 -59 10 6 -57 4 0 1.12 132 0 0 -58 17 1 1 19 14.9 4 104 44 -59 15 9 -57 20 5 -59 20 43 -57 14 46 1.13 133 0 0 -58 27 32 1 19 15.2 4 103 44 -59 25 36 -57 30 40 -59 31 9 -57 25 21 1.14 134 0 0 -58 37 53 1 19 15.6 5 102 44 -59 35 52 -57 41 4 -59 41 24 -57 35 46 1.14 135 0 0 -58 48 3 1 19 16.0 6 101 44 -59 45 57 -57 51 18 -59 51 30 -57 46 0 1.15 136 0 0 -58 58 2 1 19 16.4 6 100 44 -59 55 52 -58 1 22 -60 1 24 -57 56 4 1.15 137 0 0 -59 7 51 1 19 16.8 7 100 44 -60 5 37 -58 11 15 -60 11 8 -58 5 58 1.15 138 0 0 -59 17 29 1 19 17.3 7 99 44 -60 15 11 -58 20 58 -60 20 41 -58 15 41 1.15 139 0 0 -59 26 57 1 19 17.9 8 98 44 -60 24 34 -58 30 30 -60 30 4 -58 25 13 1.16 140 0 0 -59 36 14 1 19 18.4 8 97 44 -60 33 46 -58 39 51 -60 39 16 -58 34 35 1.16 141 0 0 -59 45 20 1 19 19.0 9 96 44 -60 42 48 -58 49 2 -60 48 17 -58 43 46 1.16 142 0 0 -59 54 16 1 19 19.6 9 95 44 -60 51 38 -58 58 1 -60 57 7 -58 52 46 1.16 143 0 0 -60 3 0 1 19 20.3 10 94 44 -61 0 18 -59 6 50 -61 5 47 -59 1 35 1.16 144 0 0 -60 11 34 1 19 21.0 10 93 44 -61 8 47 -59 15 29 -61 14 15 -59 10 14 1.16 145 0 0 -60 19 57 1 19 21.7 11 93 44 -61 17 5 -59 23 56 -61 22 33 -59 18 42 1.16 146 0 0 -60 28 9 1 19 22.4 11 92 44 -61 25 13 -59 32 12 -61 30 40 -59 26 58 1.16 147 0 0 -60 36 10 1 19 23.2 12 91 44 -61 33 9 -59 40 18 -61 38 36 -59 35 4 1.16 148 0 0 -60 44 0 1 19 24.0 12 90 44 -61 40 55 -59 48 12 -61 46 21 -59 42 59 1.16 149 0 0 -60 51 39 1 19 24.8 13 89 44 -61 48 29 -59 55 56 -61 53 55 -59 50 43 1.16 150 0 0 -60 59 7 1 19 25.7 13 88 44 -61 55 53 -60 3 28 -62 1 18 -59 58 16 1.17 151 0 0 -61 6 25 1 19 26.6 14 87 44 -62 3 6 -60 10 50 -62 8 31 -60 5 38 1.17 152 0 0 -61 13 31 1 19 27.5 14 86 44 -62 10 8 -60 18 1 -62 15 32 -60 12 49 1.17 153 0 0 -61 20 27 1 19 28.4 15 85 44 -62 16 59 -60 25 0 -62 22 23 -60 19 49 1.17 154 0 0 -61 27 11 1 19 29.4 15 84 44 -62 23 39 -60 31 49 -62 29 2 -60 26 39 1.17 155 0 0 -61 33 45 1 19 30.4 16 83 44 -62 30 8 -60 38 27 -62 35 31 -60 33 17 1.17 156 0 0 -61 40 7 1 19 31.4 16 83 44 -62 36 26 -60 44 54 -62 41 49 -60 39 44 1.17 157 0 0 -61 46 19 1 19 32.4 17 82 44 -62 42 34 -60 51 10 -62 47 56 -60 46 0 1.17 158 0 0 -61 52 20 1 19 33.5 17 81 44 -62 48 31 -60 57 14 -62 53 53 -60 52 5 1.17 159 0 0 -61 58 10 1 19 34.5 17 80 43 -62 54 17 -61 3 8 -62 59 38 -60 58 0 1.17 160 0 0 -62 3 50 1 19 35.6 18 79 43 -62 59 52 -61 8 51 -63 5 13 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58 1 19 51.9 23 66 41 -63 56 16 -62 6 41 -64 1 33 -62 1 36 1.17 174 0 0 -63 4 7 1 19 53.3 24 65 41 -63 59 22 -62 9 52 -64 4 39 -62 4 48 1.17 175 0 0 -63 7 5 1 19 54.7 24 64 41 -64 2 18 -62 12 53 -64 7 35 -62 7 49 1.17 176 0 0 -63 9 52 1 19 56.1 24 63 40 -64 5 3 -62 15 43 -64 10 20 -62 10 39 1.17 177 0 0 -63 12 29 1 19 57.5 25 62 40 -64 7 38 -62 18 22 -64 12 54 -62 13 18 1.17 178 0 0 -63 14 56 1 19 59.0 25 61 40 -64 10 3 -62 20 50 -64 15 18 -62 15 47 1.17 179 0 0 -63 17 12 1 20 0.5 26 60 40 -64 12 17 -62 23 8 -64 17 32 -62 18 4 1.17 -180 0 0 -63 19 17 1 20 2.0 26 59 39 -64 14 20 -62 25 15 -64 19 36 -62 20 12 1.17 -179 0 0 -63 21 12 1 20 3.5 26 58 39 -64 16 13 -62 27 11 -64 21 29 -62 22 8 1.17 -178 0 0 -63 22 56 1 20 5.0 27 57 39 -64 17 56 -62 28 57 -64 23 11 -62 23 54 1.17 -177 0 0 -63 24 30 1 20 6.5 27 56 39 -64 19 29 -62 30 32 -64 24 44 -62 25 29 1.17 -176 0 0 -63 25 53 1 20 8.1 27 55 38 -64 20 51 -62 31 57 -64 26 6 -62 26 54 1.17 -175 0 0 -63 27 6 1 20 9.7 28 54 38 -64 22 2 -62 33 11 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40 0 -55 43 58 -57 45 37 -55 38 37 1.18 -100 0 0 -56 29 10 1 22 57.7 39 322 5 -57 27 51 -55 31 42 -57 33 28 -55 26 20 1.18 - 99 0 0 -56 16 47 1 23 0.5 39 321 4 -57 15 32 -55 19 16 -57 21 9 -55 13 54 1.18 - 98 0 0 -56 4 15 1 23 3.3 39 319 4 -57 3 3 -55 6 41 -57 8 41 -55 1 18 1.18 - 97 0 0 -55 51 34 1 23 6.2 38 318 3 -56 50 25 -54 53 56 -56 56 3 -54 48 33 1.18 - 96 0 0 -55 38 43 1 23 9.0 38 317 2 -56 37 37 -54 41 3 -56 43 15 -54 35 39 1.18 - 95 0 0 -55 25 43 1 23 11.8 38 315 2 -56 24 41 -54 28 0 -56 30 19 -54 22 37 1.18 - 94 0 0 -55 12 35 1 23 14.7 38 314 1 -56 11 35 -54 14 49 -56 17 14 -54 9 25 1.18 - 93 0 0 -54 59 18 1 23 17.5 37 313 1 -55 58 21 -54 1 29 -56 4 0 -53 56 5 1.18 - 92 0 0 -54 45 52 1 23 20.4 37 312 0 -55 44 58 -53 48 2 -55 50 37 -53 42 37 1.19 - 91 0 0 -54 32 19 1 23 23.2 37 310 -1 -55 31 27 -53 34 26 -55 37 6 -53 29 1 1.19 - 90 0 0 -54 18 37 1 23 26.1 36 309 -1 -55 17 47 -53 20 42 -55 23 27 -53 15 17 1.19 - 89 0 0 -54 4 48 1 23 28.9 36 308 -2 -55 4 0 -53 6 50 -55 9 40 -53 1 26 1.19 - 88 0 0 -53 50 51 1 23 31.7 36 307 -3 -54 50 5 -52 52 52 -54 55 45 -52 47 27 1.19 - 87 0 0 -53 36 47 1 23 34.6 35 306 -3 -54 36 3 -52 38 46 -54 41 43 -52 33 21 1.19 - 86 0 0 -53 22 35 1 23 37.4 35 304 -4 -54 21 53 -52 24 33 -54 27 33 -52 19 8 1.19 - 85 0 0 -53 8 17 1 23 40.2 35 303 -4 -54 7 36 -52 10 14 -54 13 17 -52 4 48 1.19 - 84 0 0 -52 53 53 1 23 43.0 34 302 -5 -53 53 13 -51 55 48 -53 58 54 -51 50 23 1.19 - 83 0 0 -52 39 22 1 23 45.8 34 301 -6 -53 38 43 -51 41 16 -53 44 24 -51 35 51 1.19 - 82 0 0 -52 24 45 1 23 48.5 34 300 -6 -53 24 8 -51 26 39 -53 29 48 -51 21 13 1.19 - 81 0 0 -52 10 3 1 23 51.3 33 299 -7 -53 9 26 -51 11 56 -53 15 7 -51 6 30 1.19 - 80 0 0 -51 55 16 1 23 54.0 33 297 -8 -52 54 39 -50 57 8 -53 0 20 -50 51 42 1.19 - 79 0 0 -51 40 23 1 23 56.8 32 296 -8 -52 39 47 -50 42 15 -52 45 27 -50 36 49 1.19 - 78 0 0 -51 25 26 1 23 59.5 32 295 -9 -52 24 49 -50 27 18 -52 30 30 -50 21 52 1.19 - 77 0 0 -51 10 24 1 24 2.2 31 294 -10 -52 9 48 -50 12 16 -52 15 28 -50 6 50 1.19 - 76 0 0 -50 55 18 1 24 4.8 31 293 -10 -51 54 41 -49 57 10 -52 0 22 -49 51 44 1.19 - 75 0 0 -50 40 8 1 24 7.5 30 292 -11 -51 39 31 -49 42 1 -51 45 12 -49 36 35 1.19 - 74 0 0 -50 24 55 1 24 10.1 30 291 -12 -51 24 18 -49 26 49 -51 29 58 -49 21 23 1.19 - 73 0 0 -50 9 39 1 24 12.7 29 290 -12 -51 9 1 -49 11 33 -51 14 42 -49 6 8 1.19 - 72 0 0 -49 54 21 1 24 15.2 29 289 -13 -50 53 42 -48 56 16 -50 59 22 -48 50 50 1.19 - 71 0 0 -49 39 0 1 24 17.7 28 288 -13 -50 38 20 -48 40 56 -50 44 0 -48 35 31 1.19 - 70 0 0 -49 23 37 1 24 20.2 28 287 -14 -50 22 56 -48 25 35 -50 28 36 -48 20 9 1.20 - 69 0 0 -49 8 13 1 24 22.7 27 286 -15 -50 7 30 -48 10 12 -50 13 10 -48 4 46 1.20 - 68 0 0 -48 52 48 1 24 25.1 27 285 -15 -49 52 3 -47 54 48 -49 57 43 -47 49 23 1.20 - 67 0 0 -48 37 21 1 24 27.5 26 284 -16 -49 36 34 -47 39 23 -49 42 14 -47 33 58 1.20 - 66 0 0 -48 21 55 1 24 29.8 25 283 -17 -49 21 6 -47 23 59 -49 26 45 -47 18 34 1.20 - 65 0 0 -48 6 28 1 24 32.1 25 282 -17 -49 5 37 -47 8 34 -49 11 16 -47 3 9 1.20 - 64 0 0 -47 51 2 1 24 34.4 24 281 -18 -48 50 8 -46 53 10 -48 55 47 -46 47 45 1.20 - 63 0 0 -47 35 36 1 24 36.6 24 280 -19 -48 34 40 -46 37 47 -48 40 19 -46 32 23 1.20 - 62 0 0 -47 20 12 1 24 38.8 23 279 -19 -48 19 13 -46 22 25 -48 24 52 -46 17 1 1.20 - 61 0 0 -47 4 49 1 24 40.9 22 278 -20 -48 3 48 -46 7 5 -48 9 26 -46 1 41 1.20 - 60 0 0 -46 49 28 1 24 43.0 22 278 -20 -47 48 24 -45 51 47 -47 54 2 -45 46 23 1.20 - 59 0 0 -46 34 10 1 24 45.0 21 277 -21 -47 33 3 -45 36 31 -47 38 40 -45 31 8 1.20 - 58 0 0 -46 18 54 1 24 47.0 20 276 -22 -47 17 44 -45 21 19 -47 23 21 -45 15 56 1.21 - 57 0 0 -46 3 42 1 24 48.9 20 275 -22 -47 2 28 -45 6 9 -47 8 5 -45 0 47 1.21 - 56 0 0 -45 48 33 1 24 50.8 19 274 -23 -46 47 16 -44 51 4 -46 52 53 -44 45 41 1.21 - 55 0 0 -45 33 28 1 24 52.6 18 273 -23 -46 32 7 -44 36 2 -46 37 44 -44 30 40 1.21 - 54 0 0 -45 18 28 1 24 54.3 18 273 -24 -46 17 3 -44 21 5 -46 22 39 -44 15 44 1.21 - 53 0 0 -45 3 32 1 24 56.0 17 272 -25 -46 2 4 -44 6 13 -46 7 40 -44 0 52 1.21 - 52 0 0 -44 48 42 1 24 57.6 16 271 -25 -45 47 10 -43 51 26 -45 52 45 -43 46 5 1.21 - 51 0 0 -44 33 57 1 24 59.2 15 270 -26 -45 32 21 -43 36 45 -45 37 56 -43 31 24 1.22 - 50 0 0 -44 19 18 1 25 0.7 15 269 -26 -45 17 38 -43 22 10 -45 23 12 -43 16 50 1.22 - 49 0 0 -44 4 45 1 25 2.1 14 269 -27 -45 3 1 -43 7 41 -45 8 35 -43 2 21 1.22 - 48 0 0 -43 50 19 1 25 3.5 13 268 -27 -44 48 31 -42 53 19 -44 54 5 -42 48 0 1.22 - 47 0 0 -43 36 1 1 25 4.7 13 267 -28 -44 34 8 -42 39 5 -44 39 41 -42 33 45 1.23 - 46 0 0 -43 21 50 1 25 6.0 12 266 -28 -44 19 53 -42 24 58 -44 25 25 -42 19 39 1.23 - 45 0 0 -43 7 46 1 25 7.1 11 266 -29 -44 5 45 -42 10 59 -44 11 17 -42 5 40 1.23 - 44 0 0 -42 53 52 1 25 8.2 10 265 -29 -43 51 46 -41 57 8 -43 57 18 -41 51 50 1.24 - 43 0 0 -42 40 5 1 25 9.2 10 264 -30 -43 37 55 -41 43 26 -43 43 26 -41 38 8 1.24 - 42 0 0 -42 26 28 1 25 10.1 9 264 -30 -43 24 13 -41 29 53 -43 29 44 -41 24 35 1.25 - 41 0 0 -42 13 0 1 25 11.0 8 263 -31 -43 10 41 -41 16 29 -43 16 11 -41 11 12 1.25 - 40 0 0 -41 59 42 1 25 11.8 7 262 -31 -42 57 18 -41 3 15 -43 2 48 -40 57 59 1.26 - 39 0 0 -41 46 34 1 25 12.5 6 262 -32 -42 44 5 -40 50 11 -42 49 35 -40 44 55 1.27 - 38 0 0 -41 33 36 1 25 13.1 6 261 -32 -42 31 2 -40 37 18 -42 36 32 -40 32 2 1.28 - 37 0 0 -41 20 49 1 25 13.7 5 260 -32 -42 18 11 -40 24 35 -42 23 40 -40 19 20 1.30 - 36 0 0 -41 8 13 1 25 14.1 4 260 -33 -42 5 30 -40 12 3 -42 10 59 -40 6 48 1.32 - 35 0 0 -40 55 48 1 25 14.5 3 259 -33 -41 53 1 -39 59 43 -41 58 29 -39 54 28 1.36 - 34 0 0 -40 43 35 1 25 14.9 3 258 -33 -41 40 43 -39 47 34 -41 46 11 -39 42 20 1.41 - 33 0 0 -40 31 34 1 25 15.1 2 258 -34 -41 28 38 -39 35 38 -41 34 5 -39 30 24 1.51 - 32 0 0 -40 19 45 1 25 15.2 1 257 -34 -41 16 45 -39 23 53 -41 22 11 -39 18 40 1.76 - 31 0 0 -40 8 9 1 25 15.3 0 256 -34 -41 5 4 -39 12 21 -41 10 30 .. .. .. 3.71 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 397-117479 * constellation : Aquila * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 40 14.7846 DE: -10 39 31.843 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 40 14.7846 DE: -10 39 31.843 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.6 * B mag [mag]: 12.6 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (654) Zelinda asteroid class: approx. diameter [km]: 130 approx. diameter ["]: 0.061 distance from Earth [AU]: 2.94230 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#124 date of fit: 2023 Apr 27 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): 0.007", 0.002", 62.125° remarks: * orbital elements for (654)Zelinda : Mean anomaly = 185.6080412061 deg Arg. of pericenter = 214.5622936861 deg Long. of node = 278.3251458006 deg Inclination = 18.0973798275 deg Eccentricity = 0.2313174482 Semimajor axis = 2.2970774019 AU Perihelion dist = 1.7657233191 AU Mag: H = 8.67, G = 0.15 Epoch of elements : MJD 60618.05711005 TDT (2024 Nov 04.0571) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1242023Apr27,5.71,2024,11,4,1.370639,0.115800,-0.750763,12.747690,1.973194,0.005494,0.001291,-0.000001,0.000000 -128.9463,-10.6016,155.33,-15.47,False UCAC4 397-117479,19.67077353,-10.6588451,12.59,11.62,11.10,0.1,0,,19.69338927,-10.6016102,2.73,2.80,0,0,0 654,Zelinda,14.26,130.459,2.9423,0,0,2.585,5.90,,6.2,0 0,185.3088,2024,11,3,214.5623,278.3251,18.0974,0.23132,2.29708,1.76572,8.67,5.0,0.15 1.047,0.0070,0.0019,62,0.0029,Known errors,0.91,0,-1,-1 20241104_117479,60140.68 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:18 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org