IOTA/IOTA-ES occultation update for (1057) Wanda / TYC 1814-00965-1 event on 2024 Sep 01, 07:21 UT Visible from Summary ------- On 2024 Sep 01 UT, the 43.6695500442096 km diameter asteroid (1057) Wanda will occult a 8.6 mag star in the constellation Taurus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.77 mag to 15.39 mag (the magnitude of the asteroid) for at most 2.780 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: 97 * date and approx. time of event: 2024 Sep 01, 07:16 - 2024 Sep 01, 07:26 * geocentric midpoint of event [JD]: 2460554.80690362 * magnitude of target star: 8.62 * magnitude drop [mag]: 6.77 * estimated maximum duration [s]: 2.780 * Moon: 3 % sunlit, 75° distance * Sun: 94° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 60 * 1 sigma uncertainty interval [path widths]: +/- 0.40 * 1 sigma uncertainty interval [seconds]: +/- 2.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.026, +/- 0.013) * 1 sigma uncertainty ellipse (major, minor, PA): (0.026", 0.013", 84°) * approx speed of asteroid's shadow [km/s]: 16.2325 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1814-00965-1 by 1057 Wanda on 2024 Sep 1 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 -131 0 0 28 54 3 7 17 2.4 0 63 -48 28 35 33 29 12 38 28 20 46 29 27 39 .... -130 0 0 29 21 46 7 17 2.5 1 63 -48 29 3 12 29 40 26 28 48 22 29 55 30 -0.73 -129 0 0 29 49 51 7 17 2.8 2 64 -48 29 31 13 30 8 35 29 16 19 30 23 43 -0.80 -128 0 0 30 18 15 7 17 3.3 3 64 -48 29 59 33 30 37 4 29 44 36 30 52 15 -0.83 -127 0 0 30 46 59 7 17 3.9 4 65 -48 30 28 12 31 5 51 30 13 12 31 21 6 -0.85 -126 0 0 31 16 1 7 17 4.7 5 65 -48 30 57 10 31 34 58 30 42 7 31 50 15 -0.86 -125 0 0 31 45 20 7 17 5.6 6 66 -48 31 26 25 32 4 21 31 11 18 32 19 42 -0.87 -124 0 0 32 14 56 7 17 6.7 7 66 -47 31 55 57 32 34 1 31 40 47 32 49 25 -0.87 -123 0 0 32 44 47 7 17 8.0 8 67 -47 32 25 44 33 3 56 32 10 31 33 19 24 -0.88 -122 0 0 33 14 53 7 17 9.4 9 68 -47 32 55 46 33 34 6 32 40 30 33 49 38 -0.88 -121 0 0 33 45 13 7 17 10.9 10 68 -47 33 26 2 34 4 30 33 10 43 34 20 5 -0.88 -120 0 0 34 15 45 7 17 12.6 11 69 -47 33 56 30 34 35 6 33 41 8 34 50 44 -0.88 -119 0 0 34 46 29 7 17 14.4 12 69 -46 34 27 10 35 5 54 34 11 45 35 21 35 -0.88 -118 0 0 35 17 23 7 17 16.3 13 70 -46 34 58 1 35 36 52 34 42 33 35 52 36 -0.89 -117 0 0 35 48 27 7 17 18.4 14 71 -46 35 29 1 36 8 0 35 13 30 36 23 47 -0.89 -116 0 0 36 19 39 7 17 20.7 15 71 -45 36 0 10 36 39 16 35 44 36 36 55 5 -0.89 -115 0 0 36 50 59 7 17 23.1 16 72 -45 36 31 26 37 10 39 36 15 49 37 26 31 -0.89 -114 0 0 37 22 25 7 17 25.5 17 73 -44 37 2 49 37 42 8 36 47 9 37 58 3 -0.89 -113 0 0 37 53 55 7 17 28.2 18 73 -44 37 34 16 38 13 42 37 18 34 38 29 40 -0.89 -112 0 0 38 25 30 7 17 30.9 19 74 -44 38 5 47 38 45 19 37 50 3 39 1 20 -0.89 -111 0 0 38 57 7 7 17 33.8 20 75 -43 38 37 22 39 16 59 38 21 35 39 33 2 -0.89 -110 0 0 39 28 46 7 17 36.8 20 76 -43 39 8 58 39 48 41 38 53 9 40 4 47 -0.89 -109 0 0 40 0 25 7 17 39.9 21 76 -42 39 40 34 40 20 23 39 24 43 40 36 31 -0.89 -108 0 0 40 32 3 7 17 43.1 22 77 -42 40 12 10 40 52 4 39 56 17 41 8 14 -0.89 -107 0 0 41 3 40 7 17 46.4 23 78 -41 40 43 44 41 23 43 40 27 49 41 39 54 -0.89 -106 0 0 41 35 13 7 17 49.8 24 79 -40 41 15 15 41 55 18 40 59 18 42 11 32 -0.89 -105 0 0 42 6 42 7 17 53.3 25 80 -40 41 46 42 42 26 49 41 30 44 42 43 4 -0.89 -104 0 0 42 38 6 7 17 56.9 26 80 -39 42 18 4 42 58 15 42 2 4 43 14 31 -0.89 -103 0 0 43 9 23 7 18 0.5 26 81 -39 42 49 19 43 29 33 42 33 19 43 45 51 -0.89 -102 0 0 43 40 32 7 18 4.3 27 82 -38 43 20 27 44 0 44 43 4 25 44 17 4 -0.89 -101 0 0 44 11 33 7 18 8.1 28 83 -37 43 51 27 44 31 46 43 35 24 44 48 7 -0.89 -100 0 0 44 42 24 7 18 12.0 29 84 -37 44 22 17 45 2 38 44 6 13 45 18 59 -0.89 - 99 0 0 45 13 3 7 18 16.0 30 85 -36 44 52 56 45 33 19 44 36 51 45 49 41 -0.89 - 98 0 0 45 43 31 7 18 20.0 30 86 -35 45 23 23 46 3 48 45 7 18 46 20 10 -0.89 - 97 0 0 46 13 46 7 18 24.1 31 87 -35 45 53 37 46 34 3 45 37 32 46 50 26 -0.89 - 96 0 0 46 43 48 7 18 28.2 32 88 -34 46 23 38 47 4 5 46 7 33 47 20 28 -0.89 - 95 0 0 47 13 34 7 18 32.4 32 89 -33 46 53 25 47 33 51 46 37 19 47 50 14 -0.89 - 94 0 0 47 43 5 7 18 36.6 33 90 -33 47 22 56 48 3 22 47 6 50 48 19 45 -0.89 - 93 0 0 48 12 19 7 18 40.9 34 91 -32 47 52 10 48 32 35 47 36 5 48 48 58 -0.89 - 92 0 0 48 41 16 7 18 45.2 35 92 -31 48 21 7 49 1 32 48 5 2 49 17 54 -0.89 - 91 0 0 49 9 54 7 18 49.5 35 93 -31 48 49 47 49 30 9 48 33 42 49 46 31 -0.89 - 90 0 0 49 38 14 7 18 53.8 36 95 -30 49 18 7 49 58 28 49 2 3 50 14 49 -0.89 - 89 0 0 50 6 14 7 18 58.2 36 96 -29 49 46 8 50 26 27 49 30 5 50 42 47 -0.89 - 88 0 0 50 33 53 7 19 2.6 37 97 -29 50 13 49 50 54 5 49 57 48 51 10 24 -0.89 - 87 0 0 51 1 12 7 19 7.0 38 98 -28 50 41 9 51 21 22 50 25 9 51 37 40 -0.89 - 86 0 0 51 28 9 7 19 11.4 38 99 -27 51 8 8 51 48 18 50 52 9 52 4 34 -0.89 - 85 0 0 51 54 44 7 19 15.8 39 101 -26 51 34 46 52 14 51 51 18 48 52 31 5 -0.89 - 84 0 0 52 20 57 7 19 20.2 39 102 -26 52 1 0 52 41 1 51 45 4 52 57 14 -0.89 - 83 0 0 52 46 47 7 19 24.6 40 103 -25 52 26 52 53 6 49 52 10 58 53 23 0 -0.89 - 82 0 0 53 12 13 7 19 29.0 40 104 -24 52 52 21 53 32 13 52 36 29 53 48 21 -0.89 - 81 0 0 53 37 16 7 19 33.4 41 106 -24 53 17 26 53 57 12 53 1 36 54 13 19 -0.89 - 80 0 0 54 1 54 7 19 37.8 41 107 -23 53 42 7 54 21 48 53 26 19 54 37 52 -0.89 - 79 0 0 54 26 8 7 19 42.2 42 108 -22 54 6 24 54 45 59 53 50 39 55 2 1 -0.89 - 78 0 0 54 49 58 7 19 46.6 42 110 -22 54 30 17 55 9 46 54 14 33 55 25 45 -0.89 - 77 0 0 55 13 22 7 19 50.9 42 111 -21 54 53 44 55 33 7 54 38 4 55 49 4 -0.89 - 76 0 0 55 36 22 7 19 55.2 43 112 -20 55 16 47 55 56 3 55 1 9 56 11 57 -0.89 - 75 0 0 55 58 56 7 19 59.5 43 114 -20 55 39 25 56 18 34 55 23 50 56 34 25 -0.89 - 74 0 0 56 21 5 7 20 3.8 44 115 -19 56 1 38 56 40 40 55 46 5 56 56 28 -0.89 - 73 0 0 56 42 49 7 20 8.1 44 116 -19 56 23 26 57 2 20 56 7 56 57 18 5 -0.89 - 72 0 0 57 4 8 7 20 12.3 44 118 -18 56 44 48 57 23 35 56 29 21 57 39 17 -0.89 - 71 0 0 57 25 1 7 20 16.5 45 119 -17 57 5 45 57 44 24 56 50 21 58 0 3 -0.89 - 70 0 0 57 45 29 7 20 20.7 45 121 -17 57 26 17 58 4 48 57 10 56 58 20 24 -0.89 - 69 0 0 58 5 32 7 20 24.8 45 122 -16 57 46 23 58 24 47 57 31 5 58 40 19 -0.89 - 68 0 0 58 25 9 7 20 28.9 45 124 -15 58 6 4 58 44 20 57 50 50 58 59 49 -0.89 - 67 0 0 58 44 21 7 20 33.0 46 125 -15 58 25 21 59 3 28 58 10 9 59 18 54 -0.89 - 66 0 0 59 3 8 7 20 37.0 46 126 -14 58 44 12 59 22 11 58 29 4 59 37 33 -0.89 - 65 0 0 59 21 30 7 20 41.0 46 128 -14 59 2 38 59 40 29 58 47 34 59 55 48 -0.89 - 64 0 0 59 39 28 7 20 45.0 46 129 -13 59 20 40 59 58 22 59 5 38 60 13 38 -0.89 - 63 0 0 59 57 1 7 20 48.9 47 131 -13 59 38 17 60 15 51 59 23 19 60 31 3 -0.89 - 62 0 0 60 14 9 7 20 52.8 47 132 -12 59 55 30 60 32 55 59 40 35 60 48 3 -0.89 - 61 0 0 60 30 54 7 20 56.7 47 134 -11 60 12 18 60 49 35 59 57 27 61 4 40 -0.89 - 60 0 0 60 47 14 7 21 0.5 47 135 -11 60 28 43 61 5 51 60 13 55 61 20 52 -0.89 - 59 0 0 61 3 10 7 21 4.3 47 137 -10 60 44 44 61 21 43 60 29 59 61 36 41 -0.89 - 58 0 0 61 18 43 7 21 8.1 47 138 -10 61 0 21 61 37 12 60 45 40 61 52 6 -0.89 - 57 0 0 61 33 53 7 21 11.8 48 140 -9 61 15 35 61 52 17 61 0 57 62 7 8 -0.89 - 56 0 0 61 48 40 7 21 15.4 48 141 -9 61 30 26 62 6 59 61 15 51 62 21 47 -0.89 - 55 0 0 62 3 3 7 21 19.1 48 143 -8 61 44 54 62 21 19 61 30 22 62 36 3 -0.89 - 54 0 0 62 17 4 7 21 22.7 48 144 -8 61 58 59 62 35 16 61 44 31 62 49 56 -0.89 - 53 0 0 62 30 43 7 21 26.3 48 146 -7 62 12 42 62 48 50 61 58 17 63 3 27 -0.89 - 52 0 0 62 44 0 7 21 29.8 48 147 -7 62 26 3 63 2 3 62 11 42 63 16 36 -0.89 - 51 0 0 62 56 55 7 21 33.3 48 149 -6 62 39 2 63 14 54 62 24 44 63 29 24 -0.89 - 50 0 0 63 9 29 7 21 36.8 48 150 -6 62 51 40 63 27 23 62 37 25 63 41 50 -0.89 - 49 0 0 63 21 41 7 21 40.2 48 151 -5 63 3 56 63 39 31 62 49 44 63 53 55 -0.89 - 48 0 0 63 33 32 7 21 43.6 48 153 -5 63 15 51 63 51 19 63 1 42 64 5 39 -0.89 - 47 0 0 63 45 3 7 21 46.9 48 154 -4 63 27 25 64 2 45 63 13 20 64 17 2 -0.89 - 46 0 0 63 56 13 7 21 50.3 48 156 -4 63 38 39 64 13 51 63 24 37 64 28 5 -0.89 - 45 0 0 64 7 3 7 21 53.6 48 157 -3 63 49 33 64 24 38 63 35 34 64 38 49 -0.89 - 44 0 0 64 17 33 7 21 56.8 48 159 -3 64 0 7 64 35 4 63 46 10 64 49 12 -0.89 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17 0 0 67 9 24 7 23 15.0 46 196 9 66 53 5 67 25 47 66 40 2 67 39 0 -0.89 - 16 0 0 67 12 2 7 23 17.6 46 197 9 66 55 45 67 28 24 66 42 42 67 41 36 -0.89 - 15 0 0 67 14 26 7 23 20.2 46 199 10 66 58 9 67 30 47 66 45 7 67 43 57 -0.89 - 14 0 0 67 16 34 7 23 22.8 45 200 10 67 0 19 67 32 54 66 47 18 67 46 4 -0.89 - 13 0 0 67 18 29 7 23 25.3 45 201 10 67 2 14 67 34 48 66 49 14 67 47 57 -0.89 - 12 0 0 67 20 8 7 23 27.9 45 203 11 67 3 54 67 36 27 66 50 54 67 49 35 -0.89 - 11 0 0 67 21 33 7 23 30.4 45 204 11 67 5 20 67 37 51 66 52 21 67 50 59 -0.89 - 10 0 0 67 22 44 7 23 33.0 45 205 12 67 6 31 67 39 1 66 53 32 67 52 9 -0.89 - 9 0 0 67 23 40 7 23 35.5 45 206 12 67 7 28 67 39 57 66 54 29 67 53 5 -0.89 - 8 0 0 67 24 22 7 23 38.0 44 208 12 67 8 10 67 40 39 66 55 12 67 53 46 -0.89 - 7 0 0 67 24 50 7 23 40.5 44 209 13 67 8 38 67 41 6 66 55 40 67 54 14 -0.89 - 6 0 0 67 25 3 7 23 43.0 44 210 13 67 8 51 67 41 20 66 55 53 67 54 27 -0.89 - 5 0 0 67 25 2 7 23 45.5 44 212 14 67 8 50 67 41 19 66 55 52 67 54 26 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25 19 56 31 5 57 41 2 -0.92 62 0 0 56 44 48 7 26 21.6 19 285 41 56 25 24 57 4 19 56 9 54 57 20 4 -0.92 63 0 0 56 23 19 7 26 23.5 18 286 42 56 3 52 56 42 53 55 48 19 56 58 41 -0.92 64 0 0 56 1 26 7 26 25.4 17 287 42 55 41 55 56 21 3 55 26 20 56 36 54 -0.93 65 0 0 55 39 8 7 26 27.2 17 288 42 55 19 34 55 58 49 55 3 56 56 14 42 -0.93 66 0 0 55 16 26 7 26 29.0 16 289 43 54 56 49 55 36 10 54 41 9 55 52 6 -0.93 67 0 0 54 53 19 7 26 30.7 15 290 43 54 33 40 55 13 7 54 17 57 55 29 5 -0.93 68 0 0 54 29 49 7 26 32.4 15 290 44 54 10 7 54 49 39 53 54 22 55 5 40 -0.93 69 0 0 54 5 56 7 26 34.0 14 291 44 53 46 10 54 25 48 53 30 23 54 41 52 -0.94 70 0 0 53 41 38 7 26 35.6 13 292 44 53 21 50 54 1 34 53 6 1 54 17 39 -0.94 71 0 0 53 16 58 7 26 37.1 13 293 45 52 57 8 53 36 56 52 41 17 53 53 3 -0.94 72 0 0 52 51 55 7 26 38.5 12 294 45 52 32 2 53 11 55 52 16 10 53 28 4 -0.94 73 0 0 52 26 30 7 26 39.9 11 295 46 52 6 35 52 46 32 51 50 41 53 2 43 -0.95 74 0 0 52 0 42 7 26 41.2 10 295 46 51 40 45 52 20 46 51 24 50 52 36 59 -0.95 75 0 0 51 34 33 7 26 42.4 10 296 46 51 14 35 51 54 39 50 58 38 52 10 53 -0.96 76 0 0 51 8 3 7 26 43.6 9 297 47 50 48 3 51 28 10 50 32 5 51 44 26 -0.96 77 0 0 50 41 12 7 26 44.6 8 298 47 50 21 11 51 1 21 50 5 11 51 17 38 -0.97 78 0 0 50 14 1 7 26 45.6 7 299 47 49 53 59 50 34 11 49 37 59 50 50 29 -0.98 79 0 0 49 46 31 7 26 46.5 7 299 47 49 26 28 50 6 42 49 10 27 50 23 1 -0.99 80 0 0 49 18 42 7 26 47.3 6 300 48 48 58 38 49 38 54 48 42 36 49 55 13 -1.00 81 0 0 48 50 35 7 26 48.0 5 301 48 48 30 30 49 10 48 48 14 28 49 27 7 -1.02 82 0 0 48 22 11 7 26 48.6 4 302 48 48 2 6 48 42 24 47 46 3 48 58 44 -1.05 83 0 0 47 53 30 7 26 49.1 3 302 48 47 33 24 48 13 43 47 17 22 48 30 3 -1.08 84 0 0 47 24 33 7 26 49.5 2 303 48 47 4 28 47 44 46 46 48 25 48 1 6 -1.15 85 0 0 46 55 21 7 26 49.8 2 304 49 46 35 16 47 15 34 46 19 13 47 31 54 -1.28 86 0 0 46 25 55 7 26 50.0 1 305 49 46 5 51 46 46 8 45 49 48 47 2 27 -1.69 87 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 46 16 28 .. .. .. 46 32 47 .... Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.3 Data for the target star ------------------------ * name: TYC 1814-00965-1 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 04 09 07.9431 DE: +23 42 21.547 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 04 09 07.9432 DE: +23 42 21.547 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 8.6 * B mag [mag]: 10.3 * Diameter [mas]: 1.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1057) Wanda asteroid class: approx. diameter [km]: 44 approx. diameter ["]: 0.032 distance from Earth [AU]: 1.90060 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#54 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): 0.026", 0.013", 84.286° remarks: * orbital elements for (1057)Wanda : Mean anomaly = 14.7269117970 deg Arg. of pericenter = 114.9503390008 deg Long. of node = 257.8383102655 deg Inclination = 3.5422874887 deg Eccentricity = 0.2478234443 Semimajor axis = 2.8928528105 AU Perihelion dist = 2.1759360633 AU Mag: H = 11.05, G = 0.15 Epoch of elements : MJD 60554.30690513 TDT (2024 Sep 01.3069) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542023Apr24,2.78,2024,9,1,7.365687,-0.115030,0.651955,9.022468,1.593458,-0.005278,-0.001003,0.000000,0.000000 -28.7857,23.7716,69.49,8.06,False TYC 1814-00965-1,4.15220640,23.7059851,10.30,8.62,7.71,1.0,4,,4.17682418,23.7715621,6.77,7.22,0,0,0 1057,Wanda,15.39,45.048,1.9006,0,0,3.041,7.37,,2.2,0 0,14.6654,2024,9,1,114.9503,257.8383,3.5423,0.24782,2.89285,2.17594,11.05,5.0,0.15 1.402,0.0263,0.0130,84,0.0131,Known errors,0.92,0,-1,-1 20240901_0965-1,60140.28 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 06:38 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org