IOTA/IOTA-ES occultation update for (4313) Bouchet / TYC 1256-00344-1 event on 2024 Jul 16, 03:39 UT Visible from Summary ------- On 2024 Jul 16 UT, the 16.1322576709367 km diameter asteroid (4313) Bouchet will occult a 11.1 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 7.39 mag to 18.52 mag (the magnitude of the asteroid) for at most 0.480 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: 95 * date and approx. time of event: 2024 Jul 16, 03:36 - 2024 Jul 16, 03:43 * geocentric midpoint of event [JD]: 2460507.65275896 * magnitude of target star: 11.13 * magnitude drop [mag]: 7.39 * estimated maximum duration [s]: 0.480 * Moon: 70 % sunlit, 168° distance * Sun: 55° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 17 * 1 sigma uncertainty interval [path widths]: +/- 0.43 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.010, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.003", 66°) * approx speed of asteroid's shadow [km/s]: 33.9311 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1256-00344-1 by 4313 Bouchet on 2024 Jul 16 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 - 19 0 0 - 6 18 40 3 36 53.4 0 70 -54 - 6 23 28 - 6 13 52 - 6 27 35 - 6 9 46 .... - 18 0 0 - 5 56 55 3 36 53.4 1 70 -53 - 6 1 43 - 5 52 6 - 6 5 50 - 5 47 59 -0.21 - 17 0 0 - 5 34 46 3 36 53.5 2 70 -52 - 5 39 35 - 5 29 57 - 5 43 43 - 5 25 50 -0.20 - 16 0 0 - 5 12 16 3 36 53.7 3 70 -51 - 5 17 6 - 5 7 27 - 5 21 14 - 5 3 18 -0.20 - 15 0 0 - 4 49 24 3 36 53.9 4 70 -50 - 4 54 14 - 4 44 34 - 4 58 23 - 4 40 25 -0.19 - 14 0 0 - 4 26 11 3 36 54.2 5 70 -49 - 4 31 1 - 4 21 20 - 4 35 10 - 4 17 11 -0.19 - 13 0 0 - 4 2 36 3 36 54.6 7 70 -48 - 4 7 27 - 3 57 45 - 4 11 37 - 3 53 35 -0.19 - 12 0 0 - 3 38 41 3 36 55.1 8 70 -47 - 3 43 33 - 3 33 49 - 3 47 43 - 3 29 39 -0.19 - 11 0 0 - 3 14 26 3 36 55.6 9 70 -46 - 3 19 18 - 3 9 34 - 3 23 29 - 3 5 23 -0.19 - 10 0 0 - 2 49 51 3 36 56.1 10 70 -45 - 2 54 44 - 2 44 58 - 2 58 55 - 2 40 47 -0.19 - 9 0 0 - 2 24 57 3 36 56.8 11 70 -43 - 2 29 50 - 2 20 3 - 2 34 2 - 2 15 52 -0.19 - 8 0 0 - 1 59 44 3 36 57.5 12 69 -42 - 2 4 38 - 1 54 50 - 2 8 50 - 1 50 38 -0.19 - 7 0 0 - 1 34 13 3 36 58.3 13 69 -41 - 1 39 7 - 1 29 18 - 1 43 19 - 1 25 6 -0.19 - 6 0 0 - 1 8 23 3 36 59.1 14 69 -40 - 1 13 18 - 1 3 28 - 1 17 31 - 0 59 16 -0.19 - 5 0 0 - 0 42 17 3 37 0.1 15 69 -39 - 0 47 13 - 0 37 22 - 0 51 26 - 0 33 8 -0.19 - 4 0 0 - 0 15 54 3 37 1.1 16 69 -38 - 0 20 50 - 0 10 58 - 0 25 4 - 0 6 45 -0.19 - 3 0 0 0 10 45 3 37 2.1 17 69 -37 0 5 48 0 15 41 0 1 34 0 19 55 -0.19 - 2 0 0 0 37 39 3 37 3.3 18 70 -36 0 32 42 0 42 36 0 28 28 0 46 51 -0.19 - 1 0 0 1 4 48 3 37 4.4 20 70 -35 0 59 51 1 9 46 0 55 36 1 14 1 -0.19 0 0 0 1 32 12 3 37 5.7 21 70 -34 1 27 14 1 37 10 1 22 59 1 41 25 -0.19 1 0 0 1 59 49 3 37 7.1 22 70 -33 1 54 51 2 4 47 1 50 35 2 9 3 -0.19 2 0 0 2 27 39 3 37 8.5 23 70 -31 2 22 40 2 32 38 2 18 25 2 36 54 -0.19 3 0 0 2 55 41 3 37 9.9 24 70 -30 2 50 42 3 0 40 2 46 26 3 4 57 -0.19 4 0 0 3 23 55 3 37 11.5 25 70 -29 3 18 55 3 28 54 3 14 39 3 33 11 -0.19 5 0 0 3 52 19 3 37 13.1 26 70 -28 3 47 20 3 57 19 3 43 3 4 1 36 -0.19 6 0 0 4 20 54 3 37 14.7 27 70 -27 4 15 54 4 25 54 4 11 37 4 30 11 -0.19 7 0 0 4 49 38 3 37 16.5 28 70 -26 4 44 37 4 54 38 4 40 20 4 58 56 -0.19 8 0 0 5 18 30 3 37 18.3 30 70 -25 5 13 29 5 23 31 5 9 12 5 27 49 -0.19 9 0 0 5 47 30 3 37 20.1 31 71 -24 5 42 29 5 52 31 5 38 11 5 56 49 -0.19 10 0 0 6 16 37 3 37 22.0 32 71 -23 6 11 36 6 21 38 6 7 18 6 25 57 -0.19 11 0 0 6 45 50 3 37 24.0 33 71 -21 6 40 49 6 50 52 6 36 30 6 55 10 -0.19 12 0 0 7 15 9 3 37 26.1 34 71 -20 7 10 7 7 20 11 7 5 49 7 24 29 -0.19 13 0 0 7 44 32 3 37 28.2 35 71 -19 7 39 30 7 49 34 7 35 11 7 53 53 -0.19 14 0 0 8 13 59 3 37 30.3 36 72 -18 8 8 57 8 19 1 8 4 38 8 23 20 -0.19 15 0 0 8 43 29 3 37 32.5 37 72 -17 8 38 27 8 48 31 8 34 8 8 52 50 -0.19 16 0 0 9 13 1 3 37 34.8 38 72 -16 9 7 58 9 18 3 9 3 39 9 22 23 -0.19 17 0 0 9 42 34 3 37 37.1 39 72 -15 9 37 32 9 47 37 9 33 12 9 51 56 -0.19 18 0 0 10 12 8 3 37 39.5 41 73 -14 10 7 5 10 17 10 10 2 46 10 21 30 -0.19 19 0 0 10 41 41 3 37 42.0 42 73 -13 10 36 38 10 46 44 10 32 19 10 51 3 -0.19 20 0 0 11 11 13 3 37 44.4 43 74 -11 11 6 10 11 16 16 11 1 51 11 20 35 -0.19 21 0 0 11 40 43 3 37 47.0 44 74 -10 11 35 40 11 45 45 11 31 21 11 50 5 -0.19 22 0 0 12 10 10 3 37 49.5 45 74 -9 12 5 7 12 15 12 12 0 48 12 19 32 -0.19 23 0 0 12 39 33 3 37 52.2 46 75 -8 12 34 30 12 44 36 12 30 11 12 48 55 -0.19 24 0 0 13 8 52 3 37 54.8 47 75 -7 13 3 49 13 13 54 12 59 30 13 18 14 -0.19 25 0 0 13 38 5 3 37 57.5 48 76 -6 13 33 3 13 43 8 13 28 44 13 47 27 -0.19 26 0 0 14 7 12 3 38 0.3 49 76 -5 14 2 10 14 12 15 13 57 51 14 16 34 -0.19 27 0 0 14 36 13 3 38 3.0 50 77 -4 14 31 11 14 41 15 14 26 52 14 45 34 -0.19 28 0 0 15 5 5 3 38 5.9 51 77 -3 15 0 3 15 10 8 14 55 45 15 14 27 -0.19 29 0 0 15 33 50 3 38 8.7 52 78 -2 15 28 48 15 38 52 15 24 29 15 43 11 -0.19 30 0 0 16 2 25 3 38 11.6 53 78 -1 15 57 23 16 7 26 15 53 5 16 11 45 -0.19 31 0 0 16 30 50 3 38 14.5 54 79 1 16 25 48 16 35 51 16 21 30 16 40 10 -0.19 32 0 0 16 59 4 3 38 17.4 56 80 2 16 54 3 17 4 5 16 49 45 17 8 24 -0.19 33 0 0 17 27 7 3 38 20.4 57 81 3 17 22 6 17 32 8 17 17 48 17 36 26 -0.19 34 0 0 17 54 58 3 38 23.4 58 81 4 17 49 58 17 59 59 17 45 40 18 4 17 -0.19 35 0 0 18 22 36 3 38 26.4 59 82 5 18 17 36 18 27 37 18 13 19 18 31 54 -0.19 36 0 0 18 50 1 3 38 29.5 60 83 6 18 45 1 18 55 1 18 40 44 18 59 19 -0.19 37 0 0 19 17 12 3 38 32.5 61 84 7 19 12 12 19 22 12 19 7 56 19 26 29 -0.19 38 0 0 19 44 8 3 38 35.6 62 85 8 19 39 9 19 49 8 19 34 53 19 53 24 -0.19 39 0 0 20 10 49 3 38 38.7 63 86 9 20 5 50 20 15 48 20 1 34 20 20 4 -0.19 40 0 0 20 37 14 3 38 41.8 64 87 10 20 32 16 20 42 13 20 28 0 20 46 29 -0.19 41 0 0 21 3 23 3 38 45.0 64 88 11 20 58 25 21 8 21 20 54 10 21 12 37 -0.19 42 0 0 21 29 15 3 38 48.1 65 89 12 21 24 18 21 34 13 21 20 3 21 38 28 -0.19 43 0 0 21 54 50 3 38 51.2 66 91 13 21 49 53 21 59 47 21 45 38 22 4 2 -0.19 44 0 0 22 20 7 3 38 54.4 67 92 14 22 15 10 22 25 3 22 10 56 22 29 18 -0.19 45 0 0 22 45 5 3 38 57.6 68 94 15 22 40 9 22 50 1 22 35 55 22 54 15 -0.19 46 0 0 23 9 45 3 39 0.7 69 95 16 23 4 49 23 14 40 23 0 36 23 18 54 -0.19 47 0 0 23 34 5 3 39 3.9 70 97 17 23 29 10 23 39 0 23 24 57 23 43 14 -0.19 48 0 0 23 58 6 3 39 7.1 71 99 18 23 53 11 24 3 1 23 48 59 24 7 13 -0.19 49 0 0 24 21 47 3 39 10.3 72 101 19 24 16 53 24 26 41 24 12 41 24 30 53 -0.19 50 0 0 24 45 7 3 39 13.4 72 103 20 24 40 14 24 50 1 24 36 2 24 54 13 -0.19 51 0 0 25 8 7 3 39 16.6 73 106 21 25 3 14 25 13 0 24 59 3 25 17 12 -0.19 52 0 0 25 30 46 3 39 19.8 74 108 22 25 25 53 25 35 39 25 21 43 25 39 49 -0.19 53 0 0 25 53 3 3 39 22.9 75 111 23 25 48 12 25 57 56 25 44 1 26 2 6 -0.19 54 0 0 26 14 59 3 39 26.1 75 114 24 26 10 8 26 19 51 26 5 58 26 24 1 -0.19 55 0 0 26 36 34 3 39 29.3 76 117 25 26 31 43 26 41 24 26 27 34 26 45 34 -0.19 56 0 0 26 57 46 3 39 32.4 77 121 26 26 52 55 27 2 36 26 48 47 27 6 45 -0.19 57 0 0 27 18 35 3 39 35.6 77 125 27 27 13 46 27 23 25 27 9 37 27 27 33 -0.19 58 0 0 27 39 2 3 39 38.7 78 129 28 27 34 13 27 43 52 27 30 6 27 47 59 -0.19 59 0 0 27 59 7 3 39 41.8 78 133 29 27 54 18 28 3 55 27 50 11 28 8 3 -0.19 60 0 0 28 18 49 3 39 44.9 79 138 30 28 14 1 28 23 37 28 9 54 28 27 43 -0.19 61 0 0 28 38 7 3 39 48.0 79 143 31 28 33 20 28 42 55 28 29 14 28 47 1 -0.19 62 0 0 28 57 3 3 39 51.1 79 149 32 28 52 16 29 1 49 28 48 10 29 5 55 -0.19 63 0 0 29 15 35 3 39 54.2 79 154 33 29 10 49 29 20 21 29 6 43 29 24 26 -0.19 64 0 0 29 33 43 3 39 57.3 79 160 34 29 28 58 29 38 29 29 24 53 29 42 34 -0.19 65 0 0 29 51 29 3 40 0.3 79 165 34 29 46 44 29 56 14 29 42 39 30 0 18 -0.19 66 0 0 30 8 50 3 40 3.3 79 171 35 30 4 6 30 13 35 30 0 2 30 17 39 -0.19 67 0 0 30 25 48 3 40 6.3 79 176 36 30 21 4 30 30 32 30 17 1 30 34 35 -0.19 68 0 0 30 42 22 3 40 9.3 79 181 37 30 37 39 30 47 6 30 33 36 30 51 8 -0.19 69 0 0 30 58 33 3 40 12.3 78 186 38 30 53 50 31 3 15 30 49 48 31 7 18 -0.19 70 0 0 31 14 19 3 40 15.3 78 191 39 31 9 37 31 19 1 31 5 35 31 23 3 -0.19 71 0 0 31 29 42 3 40 18.2 78 195 40 31 25 0 31 34 23 31 20 59 31 38 25 -0.19 72 0 0 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0 40 3 42 41.9 27 276 74 33 56 4 34 5 16 33 52 8 34 9 13 -0.19 138 0 0 33 50 3 3 42 43.2 26 277 73 33 45 26 33 54 39 33 41 30 33 58 36 -0.19 139 0 0 33 39 2 3 42 44.4 25 278 73 33 34 25 33 43 39 33 30 28 33 47 36 -0.19 140 0 0 33 27 38 3 42 45.6 25 278 72 33 23 0 33 32 15 33 19 3 33 36 13 -0.19 141 0 0 33 15 50 3 42 46.8 24 279 72 33 11 12 33 20 28 33 7 14 33 24 26 -0.19 142 0 0 33 3 39 3 42 48.0 23 279 71 32 59 1 33 8 18 32 55 3 33 12 16 -0.19 143 0 0 32 51 5 3 42 49.1 22 280 71 32 46 26 32 55 44 32 42 27 32 59 43 -0.19 144 0 0 32 38 7 3 42 50.1 21 280 70 32 33 28 32 42 46 32 29 29 32 46 46 -0.19 145 0 0 32 24 46 3 42 51.2 20 281 70 32 20 6 32 29 25 32 16 6 32 33 25 -0.19 146 0 0 32 11 1 3 42 52.2 19 282 69 32 6 21 32 15 41 32 2 21 32 19 42 -0.19 147 0 0 31 56 53 3 42 53.1 18 282 68 31 52 13 32 1 34 31 48 12 32 5 35 -0.20 148 0 0 31 42 22 3 42 54.0 18 283 68 31 37 41 31 47 3 31 33 40 31 51 4 -0.20 149 0 0 31 27 27 3 42 54.9 17 283 67 31 22 46 31 32 9 31 18 44 31 36 11 -0.20 150 0 0 31 12 9 3 42 55.8 16 284 66 31 7 27 31 16 52 31 3 25 31 20 54 -0.20 151 0 0 30 56 28 3 42 56.6 15 284 65 30 51 45 31 1 11 30 47 43 31 5 14 -0.20 152 0 0 30 40 24 3 42 57.3 14 285 65 30 35 41 30 45 7 30 31 38 30 49 10 -0.20 153 0 0 30 23 56 3 42 58.0 13 285 64 30 19 13 30 28 40 30 15 9 30 32 44 -0.20 154 0 0 30 7 6 3 42 58.7 12 286 63 30 2 21 30 11 50 29 58 18 30 15 54 -0.20 155 0 0 29 49 52 3 42 59.3 11 286 62 29 45 7 29 54 37 29 41 3 29 58 42 -0.20 156 0 0 29 32 16 3 42 59.9 10 287 62 29 27 31 29 37 2 29 23 26 29 41 7 -0.21 157 0 0 29 14 17 3 43 0.4 9 287 61 29 9 31 29 19 3 29 5 26 29 23 8 -0.21 158 0 0 28 55 55 3 43 0.9 8 288 60 28 51 9 29 0 42 28 47 3 29 4 48 -0.21 159 0 0 28 37 11 3 43 1.3 8 288 59 28 32 24 28 41 58 28 28 18 28 46 5 -0.21 160 0 0 28 18 4 3 43 1.7 7 289 58 28 13 17 28 22 52 28 9 10 28 26 59 -0.22 161 0 0 27 58 36 3 43 2.1 6 289 57 27 53 47 28 3 24 27 49 40 28 7 31 -0.22 162 0 0 27 38 45 3 43 2.4 5 290 56 27 33 56 27 43 34 27 29 48 27 47 41 -0.23 163 0 0 27 18 32 3 43 2.6 4 290 56 27 13 43 27 23 21 27 9 35 27 27 30 -0.24 164 0 0 26 57 58 3 43 2.8 3 291 55 26 53 8 27 2 48 26 48 59 27 6 56 -0.26 165 0 0 26 37 2 3 43 2.9 2 291 54 26 32 11 26 41 52 26 28 2 26 46 1 -0.30 166 0 0 26 15 45 3 43 3.0 1 291 53 26 10 54 26 20 36 26 6 44 26 24 45 -0.43 167 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 26 3 8 .... Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: TYC 1256-00344-1 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 03 47 45.7040 DE: +19 31 28.412 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 03 47 45.7041 DE: +19 31 28.412 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.1 * B mag [mag]: 11.9 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (4313) Bouchet asteroid class: approx. diameter [km]: 16 approx. diameter ["]: 0.007 distance from Earth [AU]: 3.14010 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#50 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): 0.011", 0.003", 65.881° remarks: * orbital elements for (4313)Bouchet : Mean anomaly = 199.1366004401 deg Arg. of pericenter = 158.1659807353 deg Long. of node = 44.1591216779 deg Inclination = 9.2722962055 deg Eccentricity = 0.0119797031 Semimajor axis = 2.6544402608 AU Perihelion dist = 2.6226408545 AU Mag: H = 12.97, G = 0.15 Epoch of elements : MJD 60507.15275938 TDT (2024 Jul 16.1528) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#502023Apr24,0.48,2024,7,16,3.666215,-0.052415,0.172426,18.305613,5.629424,-0.004398,-0.000991,-0.000001,0.000000 67.8228,19.5999,126.54,21.29,False TYC 1256-00344-1,3.79602886,19.5245587,11.93,11.13,10.70,0.1,0,,3.81940598,19.5999210,7.40,7.38,0,0,0 4313,Bouchet,18.52,16.360,3.1401,0,0,3.629,15.76,,1.2,0 0,199.1018,2024,7,16,158.1660,44.1591,9.2723,0.01198,2.65444,2.62264,12.96,5.0,0.15 1.429,0.0107,0.0028,66,0.0031,Known errors,1.18,0,-1,-1 20240716_0344-1,60140.20 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 04:53 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org