IOTA/IOTA-ES occultation update for (3460) Ashkova / TYC 5810-01134-1 event on 2024 Dec 13, 22:05 UT Visible from Summary ------- On 2024 Dec 13 UT, the 17.9241414555287 km diameter asteroid (3460) Ashkova will occult a 10.2 mag star in the constellation Aquarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.67 mag to 17.89 mag (the magnitude of the asteroid) for at most 0.620 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: 98 * date and approx. time of event: 2024 Dec 13, 22:01 - 2024 Dec 13, 22:09 * geocentric midpoint of event [JD]: 2460658.42051404 * magnitude of target star: 10.22 * magnitude drop [mag]: 7.67 * estimated maximum duration [s]: 0.620 * Moon: 97 % sunlit, 91° distance * Sun: 70° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 18 * 1 sigma uncertainty interval [path widths]: +/- 0.35 * 1 sigma uncertainty interval [seconds]: +/- 1.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.024, +/- 0.010) * 1 sigma uncertainty ellipse (major, minor, PA): (0.026", 0.003", 69°) * approx speed of asteroid's shadow [km/s]: 29.1128 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5810-01134-1 by 3460 Ashkova on 2024 Dec 13 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 -175 0 0 -27 39 51 22 1 54.5 0 104 69 -27 44 57 -27 34 46 -27 48 31 -27 31 12 .... -174 0 0 -27 53 17 22 1 54.6 1 104 69 -27 58 22 -27 48 12 -28 1 56 -27 44 38 0.13 -173 0 0 -28 6 19 22 1 54.7 2 103 70 -28 11 23 -28 1 14 -28 14 56 -27 57 41 0.11 -172 0 0 -28 18 56 22 1 54.8 3 103 71 -28 24 0 -28 13 52 -28 27 33 -28 10 19 0.11 -171 0 0 -28 31 10 22 1 55.1 4 102 72 -28 36 13 -28 26 7 -28 39 46 -28 22 34 0.11 -170 0 0 -28 42 59 22 1 55.3 5 102 73 -28 48 2 -28 37 57 -28 51 35 -28 34 24 0.10 -169 0 0 -28 54 25 22 1 55.7 6 101 73 -28 59 27 -28 49 23 -29 3 0 -28 45 51 0.10 -168 0 0 -29 5 27 22 1 56.0 7 101 74 -29 10 28 -29 0 25 -29 14 0 -28 56 53 0.10 -167 0 0 -29 16 4 22 1 56.5 8 100 75 -29 21 6 -29 11 3 -29 24 37 -29 7 31 0.10 -166 0 0 -29 26 18 22 1 56.9 9 100 76 -29 31 19 -29 21 16 -29 34 50 -29 17 45 0.10 -165 0 0 -29 36 7 22 1 57.5 9 99 76 -29 41 8 -29 31 6 -29 44 39 -29 27 35 0.10 -164 0 0 -29 45 32 22 1 58.1 10 99 77 -29 50 33 -29 40 32 -29 54 3 -29 37 1 0.10 -163 0 0 -29 54 34 22 1 58.7 11 98 78 -29 59 33 -29 49 34 -30 3 4 -29 46 3 0.10 -162 0 0 -30 3 11 22 1 59.4 12 98 79 -30 8 10 -29 58 11 -30 11 40 -29 54 41 0.10 -161 0 0 -30 11 24 22 2 0.1 13 97 79 -30 16 23 -30 6 25 -30 19 53 -30 2 55 0.10 -160 0 0 -30 19 13 22 2 0.9 14 97 80 -30 24 12 -30 14 14 -30 27 42 -30 10 45 0.10 -159 0 0 -30 26 38 22 2 1.7 15 96 80 -30 31 37 -30 21 40 -30 35 6 -30 18 10 0.10 -158 0 0 -30 33 39 22 2 2.6 16 96 81 -30 38 38 -30 28 41 -30 42 7 -30 25 12 0.10 -157 0 0 -30 40 16 22 2 3.5 16 95 81 -30 45 14 -30 35 19 -30 48 43 -30 31 50 0.10 -156 0 0 -30 46 30 22 2 4.5 17 95 81 -30 51 27 -30 41 32 -30 54 56 -30 38 3 0.10 -155 0 0 -30 52 19 22 2 5.5 18 94 82 -30 57 16 -30 47 21 -31 0 45 -30 43 53 0.10 -154 0 0 -30 57 44 22 2 6.6 19 94 82 -31 2 41 -30 52 47 -31 6 9 -30 49 18 0.10 -153 0 0 -31 2 45 22 2 7.7 20 93 82 -31 7 42 -30 57 48 -31 11 10 -30 54 20 0.10 -152 0 0 -31 7 22 22 2 8.8 21 93 82 -31 12 19 -31 2 25 -31 15 47 -30 58 57 0.10 -151 0 0 -31 11 35 22 2 10.0 22 92 82 -31 16 32 -31 6 39 -31 20 0 -31 3 11 0.10 -150 0 0 -31 15 24 22 2 11.3 22 92 82 -31 20 21 -31 10 28 -31 23 49 -31 7 0 0.09 -149 0 0 -31 18 50 22 2 12.6 23 91 81 -31 23 46 -31 13 54 -31 27 14 -31 10 26 0.09 -148 0 0 -31 21 51 22 2 13.9 24 91 81 -31 26 47 -31 16 55 -31 30 15 -31 13 27 0.09 -147 0 0 -31 24 28 22 2 15.3 25 90 81 -31 29 24 -31 19 32 -31 32 52 -31 16 5 0.09 -146 0 0 -31 26 42 22 2 16.7 26 90 80 -31 31 38 -31 21 46 -31 35 5 -31 18 19 0.09 -145 0 0 -31 28 31 22 2 18.2 27 89 80 -31 33 27 -31 23 36 -31 36 54 -31 20 8 0.09 -144 0 0 -31 29 57 22 2 19.7 28 89 79 -31 34 52 -31 25 1 -31 38 20 -31 21 34 0.09 -143 0 0 -31 30 58 22 2 21.2 28 88 78 -31 35 54 -31 26 3 -31 39 21 -31 22 35 0.09 -142 0 0 -31 31 36 22 2 22.8 29 87 78 -31 36 31 -31 26 40 -31 39 59 -31 23 13 0.09 -141 0 0 -31 31 49 22 2 24.5 30 87 77 -31 36 45 -31 26 54 -31 40 12 -31 23 27 0.09 -140 0 0 -31 31 39 22 2 26.2 31 86 76 -31 36 35 -31 26 43 -31 40 2 -31 23 16 0.09 -139 0 0 -31 31 5 22 2 27.9 32 86 76 -31 36 0 -31 26 9 -31 39 28 -31 22 42 0.09 -138 0 0 -31 30 6 22 2 29.7 33 85 75 -31 35 2 -31 25 10 -31 38 29 -31 21 43 0.09 -137 0 0 -31 28 44 22 2 31.5 34 85 74 -31 33 39 -31 23 48 -31 37 7 -31 20 21 0.09 -136 0 0 -31 26 57 22 2 33.3 34 84 74 -31 31 53 -31 22 1 -31 35 20 -31 18 34 0.09 -135 0 0 -31 24 46 22 2 35.2 35 84 73 -31 29 42 -31 19 51 -31 33 10 -31 16 23 0.09 -134 0 0 -31 22 12 22 2 37.2 36 83 72 -31 27 8 -31 17 16 -31 30 35 -31 13 48 0.09 -133 0 0 -31 19 13 22 2 39.1 37 82 71 -31 24 9 -31 14 17 -31 27 37 -31 10 49 0.09 -132 0 0 -31 15 50 22 2 41.2 38 82 70 -31 20 46 -31 10 53 -31 24 14 -31 7 26 0.09 -131 0 0 -31 12 2 22 2 43.2 39 81 70 -31 16 59 -31 7 6 -31 20 27 -31 3 38 0.09 -130 0 0 -31 7 51 22 2 45.3 40 81 69 -31 12 48 -31 2 54 -31 16 16 -30 59 26 0.09 -129 0 0 -31 3 15 22 2 47.5 41 80 68 -31 8 12 -30 58 19 -31 11 40 -30 54 50 0.09 -128 0 0 -30 58 15 22 2 49.7 41 80 67 -31 3 12 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43 18 -18 25 1 0.10 - 78 0 0 -18 9 18 22 5 30.0 84 344 21 -18 14 41 -18 3 55 -18 18 27 -18 0 8 0.10 - 77 0 0 -17 44 7 22 5 34.0 84 332 20 -17 49 31 -17 38 44 -17 53 18 -17 34 57 0.10 - 76 0 0 -17 18 38 22 5 38.0 84 321 19 -17 24 2 -17 13 14 -17 27 49 -17 9 27 0.10 - 75 0 0 -16 52 50 22 5 42.1 84 311 17 -16 58 15 -16 47 26 -17 2 3 -16 43 38 0.10 - 74 0 0 -16 26 45 22 5 46.2 83 302 16 -16 32 10 -16 21 20 -16 35 58 -16 17 32 0.10 - 73 0 0 -16 0 22 22 5 50.2 83 295 15 -16 5 47 -15 54 56 -16 9 36 -15 51 8 0.10 - 72 0 0 -15 33 42 22 5 54.3 82 289 14 -15 39 8 -15 28 16 -15 42 57 -15 24 27 0.10 - 71 0 0 -15 6 46 22 5 58.4 81 284 13 -15 12 13 -15 1 20 -15 16 2 -14 57 31 0.10 - 70 0 0 -14 39 34 22 6 2.5 80 279 12 -14 45 1 -14 34 8 -14 48 51 -14 30 18 0.10 - 69 0 0 -14 12 8 22 6 6.6 79 276 11 -14 17 35 -14 6 41 -14 21 25 -14 2 51 0.10 - 68 0 0 -13 44 27 22 6 10.7 78 273 10 -13 49 55 -13 38 59 -13 53 45 -13 35 9 0.10 - 67 0 0 -13 16 32 22 6 14.8 78 270 9 -13 22 1 -13 11 4 -13 25 51 -13 7 14 0.10 - 66 0 0 -12 48 25 22 6 18.9 77 268 8 -12 53 53 -12 42 56 -12 57 44 -12 39 6 0.10 - 65 0 0 -12 20 5 22 6 23.0 76 266 7 -12 25 33 -12 14 36 -12 29 24 -12 10 45 0.10 - 64 0 0 -11 51 33 22 6 27.1 75 265 6 -11 57 2 -11 46 4 -12 0 53 -11 42 13 0.10 - 63 0 0 -11 22 50 22 6 31.2 73 263 4 -11 28 19 -11 17 21 -11 32 11 -11 13 30 0.10 - 62 0 0 -10 53 57 22 6 35.3 72 262 3 -10 59 27 -10 48 27 -11 3 18 -10 44 36 0.10 - 61 0 0 -10 24 55 22 6 39.3 71 261 2 -10 30 25 -10 19 25 -10 34 16 -10 15 33 0.10 - 60 0 0 - 9 55 44 22 6 43.3 70 260 1 -10 1 14 - 9 50 14 -10 5 6 - 9 46 22 0.10 - 59 0 0 - 9 26 25 22 6 47.4 69 259 0 - 9 31 55 - 9 20 54 - 9 35 47 - 9 17 3 0.10 - 58 0 0 - 8 56 59 22 6 51.4 68 258 -1 - 9 2 29 - 8 51 28 - 9 6 21 - 8 47 36 0.10 - 57 0 0 - 8 27 26 22 6 55.3 67 257 -2 - 8 32 57 - 8 21 56 - 8 36 49 - 8 18 4 0.10 - 56 0 0 - 7 57 49 22 6 59.3 66 256 -3 - 8 3 19 - 7 52 18 - 8 7 12 - 7 48 26 0.10 - 55 0 0 - 7 28 6 22 7 3.2 65 256 -4 - 7 33 37 - 7 22 35 - 7 37 29 - 7 18 43 0.10 - 54 0 0 - 6 58 20 22 7 7.1 64 255 -6 - 7 3 51 - 6 52 49 - 7 7 43 - 6 48 57 0.10 - 53 0 0 - 6 28 31 22 7 10.9 63 254 -7 - 6 34 2 - 6 23 0 - 6 37 54 - 6 19 8 0.10 - 52 0 0 - 5 58 39 22 7 14.7 62 254 -8 - 6 4 10 - 5 53 9 - 6 8 3 - 5 49 16 0.10 - 51 0 0 - 5 28 47 22 7 18.5 60 254 -9 - 5 34 18 - 5 23 16 - 5 38 10 - 5 19 24 0.10 - 50 0 0 - 4 58 54 22 7 22.3 59 253 -10 - 5 4 25 - 4 53 23 - 5 8 17 - 4 49 31 0.10 - 49 0 0 - 4 29 1 22 7 26.0 58 253 -11 - 4 34 32 - 4 23 31 - 4 38 24 - 4 19 39 0.10 - 48 0 0 - 3 59 10 22 7 29.6 57 252 -12 - 4 4 41 - 3 53 39 - 4 8 33 - 3 49 47 0.10 - 47 0 0 - 3 29 21 22 7 33.2 56 252 -13 - 3 34 52 - 3 23 50 - 3 38 44 - 3 19 58 0.10 - 46 0 0 - 2 59 35 22 7 36.8 55 252 -15 - 3 5 5 - 2 54 4 - 3 8 57 - 2 50 13 0.10 - 45 0 0 - 2 29 52 22 7 40.3 54 252 -16 - 2 35 23 - 2 24 22 - 2 39 15 - 2 20 31 0.10 - 44 0 0 - 2 0 15 22 7 43.8 53 251 -17 - 2 5 45 - 1 54 45 - 2 9 37 - 1 50 53 0.10 - 43 0 0 - 1 30 43 22 7 47.2 52 251 -18 - 1 36 12 - 1 25 13 - 1 40 4 - 1 21 21 0.10 - 42 0 0 - 1 1 17 22 7 50.5 50 251 -19 - 1 6 46 - 0 55 47 - 1 10 38 - 0 51 56 0.10 - 41 0 0 - 0 31 58 22 7 53.8 49 251 -20 - 0 37 27 - 0 26 29 - 0 41 18 - 0 22 38 0.10 - 40 0 0 - 0 2 47 22 7 57.1 48 251 -21 - 0 8 16 0 2 42 - 0 12 7 0 6 33 0.10 - 39 0 0 0 26 15 22 8 0.3 47 251 -22 0 20 46 0 31 44 0 16 56 0 35 34 0.10 - 38 0 0 0 55 8 22 8 3.4 46 250 -24 0 49 39 1 0 36 0 45 49 1 4 26 0.10 - 37 0 0 1 23 50 22 8 6.4 45 250 -25 1 18 22 1 29 18 1 14 32 1 33 8 0.10 - 36 0 0 1 52 22 22 8 9.4 44 250 -26 1 46 54 1 57 49 1 43 4 2 1 39 0.10 - 35 0 0 2 20 41 22 8 12.4 43 250 -27 2 15 14 2 26 9 2 11 24 2 29 58 0.10 - 34 0 0 2 48 49 22 8 15.2 42 250 -28 2 43 22 2 54 15 2 39 33 2 58 5 0.10 - 33 0 0 3 16 43 22 8 18.0 40 250 -29 3 11 17 3 22 9 3 7 28 3 25 58 0.10 - 32 0 0 3 44 23 22 8 20.8 39 250 -30 3 38 57 3 49 49 3 35 9 3 53 38 0.10 - 31 0 0 4 11 49 22 8 23.4 38 250 -31 4 6 24 4 17 15 4 2 36 4 21 3 0.10 - 30 0 0 4 39 0 22 8 26.0 37 250 -32 4 33 35 4 44 25 4 29 47 4 48 13 0.10 - 29 0 0 5 5 55 22 8 28.5 36 250 -34 5 0 31 5 11 20 4 56 43 5 15 7 0.10 - 28 0 0 5 32 34 22 8 31.0 35 250 -35 5 27 10 5 37 58 5 23 23 5 41 45 0.10 - 27 0 0 5 58 56 22 8 33.3 34 250 -36 5 53 33 6 4 20 5 49 46 6 8 7 0.10 - 26 0 0 6 25 1 22 8 35.6 33 250 -37 6 19 38 6 30 24 6 15 52 6 34 10 0.11 - 25 0 0 6 50 48 22 8 37.9 32 250 -38 6 45 25 6 56 10 6 41 39 6 59 56 0.11 - 24 0 0 7 16 16 22 8 40.0 31 250 -39 7 10 54 7 21 37 7 7 8 7 25 23 0.11 - 23 0 0 7 41 25 22 8 42.1 29 251 -40 7 36 4 7 46 46 7 32 18 7 50 31 0.11 - 22 0 0 8 6 15 22 8 44.1 28 251 -41 8 0 54 8 11 35 7 57 9 8 15 20 0.11 - 21 0 0 8 30 44 22 8 46.0 27 251 -42 8 25 24 8 36 4 8 21 40 8 39 49 0.11 - 20 0 0 8 54 54 22 8 47.9 26 251 -43 8 49 34 9 0 13 8 45 50 9 3 57 0.11 - 19 0 0 9 18 42 22 8 49.7 25 251 -44 9 13 24 9 24 1 9 9 40 9 27 45 0.11 - 18 0 0 9 42 10 22 8 51.4 24 251 -45 9 36 52 9 47 28 9 33 8 9 51 11 0.11 - 17 0 0 10 5 16 22 8 53.0 23 251 -47 9 59 58 10 10 33 9 56 15 10 14 16 0.11 - 16 0 0 10 28 0 22 8 54.6 22 252 -48 10 22 43 10 33 17 10 19 1 10 36 59 0.11 - 15 0 0 10 50 22 22 8 56.0 21 252 -49 10 45 6 10 55 38 10 41 24 10 59 20 0.11 - 14 0 0 11 12 21 22 8 57.4 20 252 -50 11 7 5 11 17 37 11 3 24 11 21 18 0.11 - 13 0 0 11 33 58 22 8 58.8 19 252 -51 11 28 43 11 39 13 11 25 2 11 42 54 0.11 - 12 0 0 11 55 11 22 9 0.0 18 252 -52 11 49 57 12 0 26 11 46 16 12 4 6 0.11 - 11 0 0 12 16 1 22 9 1.2 17 252 -53 12 10 47 12 21 15 12 7 7 12 24 55 0.11 - 10 0 0 12 36 27 22 9 2.3 16 253 -54 12 31 14 12 41 41 12 27 34 12 45 20 0.11 - 9 0 0 12 56 30 22 9 3.4 15 253 -55 12 51 17 13 1 43 12 47 38 13 5 22 0.11 - 8 0 0 13 16 8 22 9 4.3 14 253 -56 13 10 56 13 21 20 13 7 17 13 24 59 0.11 - 7 0 0 13 35 23 22 9 5.2 13 253 -57 13 30 11 13 40 34 13 26 33 13 44 12 0.11 - 6 0 0 13 54 12 22 9 6.0 12 254 -58 13 49 1 13 59 23 13 45 23 14 3 1 0.11 - 5 0 0 14 12 37 22 9 6.8 11 254 -59 14 7 27 14 17 48 14 3 50 14 21 25 0.11 - 4 0 0 14 30 38 22 9 7.5 10 254 -60 14 25 28 14 35 47 14 21 51 14 39 24 0.11 - 3 0 0 14 48 13 22 9 8.1 9 254 -61 14 43 4 14 53 22 14 39 27 14 56 59 0.12 - 2 0 0 15 5 23 22 9 8.6 8 255 -62 15 0 15 15 10 32 14 56 38 15 14 8 0.12 - 1 0 0 15 22 8 22 9 9.1 7 255 -63 15 17 1 15 27 16 15 13 25 15 30 52 0.12 0 0 0 15 38 28 22 9 9.5 6 255 -64 15 33 21 15 43 36 15 29 45 15 47 11 0.12 1 0 0 15 54 23 22 9 9.8 5 255 -65 15 49 16 15 59 29 15 45 41 16 3 5 0.13 2 0 0 16 9 52 22 9 10.1 4 256 -66 16 4 45 16 14 58 16 1 11 16 18 33 0.14 3 0 0 16 24 55 22 9 10.3 3 256 -67 16 19 49 16 30 1 16 16 15 16 33 35 0.15 4 0 0 16 39 33 22 9 10.4 2 256 -68 16 34 28 16 44 38 16 30 54 16 48 12 0.19 5 0 0 16 53 45 22 9 10.5 1 256 -69 16 48 40 16 58 50 16 45 7 17 2 23 0.34 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 5810-01134-1 * constellation : Aquarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 22 18 14.7693 DE: -12 56 03.321 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 22 18 14.7692 DE: -12 56 03.321 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 10.2 * B mag [mag]: 10.7 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3460) Ashkova asteroid class: approx. diameter [km]: 18 approx. diameter ["]: 0.009 distance from Earth [AU]: 2.68670 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#51 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): 0.026", 0.003", 69.303° remarks: * orbital elements for (3460)Ashkova : Mean anomaly = 342.2139289481 deg Arg. of pericenter = 299.2148259325 deg Long. of node = 82.3909207202 deg Inclination = 2.3743950829 deg Eccentricity = 0.2240122671 Semimajor axis = 3.1765675430 AU Perihelion dist = 2.4649774462 AU Mag: H = 12.69, G = 0.15 Epoch of elements : MJD 60657.92051400 TDT (2024 Dec 13.9205) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#512023Apr27,0.62,2024,12,13,22.092337,0.036232,-0.086875,15.152139,6.358181,0.005110,0.001887,-0.000001,0.000000 -79.5712,-12.8107,-152.73,-23.22,False TYC 5810-01134-1,22.30410260,-12.9342556,10.69,10.22,9.97,0.1,0,,22.32620271,-12.8107092,7.67,7.47,0,0,0 3460,Ashkova,17.89,18.119,2.6867,0,0,3.391,20.82,,1.6,0 0,342.0537,2024,12,13,299.2148,82.3909,2.3744,0.22401,3.17657,2.46498,12.69,5.0,0.15 1.351,0.0257,0.0031,69,0.0032,Known errors,1.05,0,-1,-1 20241213_1134-1,60140.74 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:44 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org