IOTA/IOTA-ES occultation update for (747) Winchester / TYC 0346-00728-1 event on 2023 Apr 11, 07:04 UT Visible from USA, Canada Summary ------- On 2023 Apr 11 UT, the 168.6 km diameter asteroid (747) Winchester will occult a 9.6 mag star in the constellation Virgo for observers along a path across USA, Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.27 mag to 13.88 mag (the magnitude of the asteroid) for at most 10.470 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: 2023 Apr 11, 06:58 - 2023 Apr 11, 07:10 * geocentric midpoint of event [JD]: 2460045.79463900 * magnitude of target star: 9.63 * magnitude drop [mag]: 4.27 * estimated maximum duration [s]: 10.470 * Moon: 73 % sunlit, 49° distance * Sun: 149° distance * rough path description: USA, Canada Additional comments ------------------- RUWE high The occultation path -------------------- * approximate projected width [km]: 188 * 1 sigma uncertainty interval [path widths]: +/- 0.05 * 1 sigma uncertainty interval [seconds]: +/- 1.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.003", 112°) * approx speed of asteroid's shadow [km/s]: 16.1007 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0346-00728-1 by 747 Winchester on 2023 Apr 11 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 178 0 0 .. .. .... .. .. .. .. .. .. 58 49 39 .. .. .. 58 54 24 .. .. .. .... 179 0 0 58 4 48 7 10 10.0 0 77 -1 58 57 11 57 12 50 59 1 55 57 8 10 .... -180 0 0 58 12 5 7 10 9.9 1 78 -2 59 4 21 57 20 14 59 9 4 57 15 34 -0.43 -179 0 0 58 19 1 7 10 9.8 1 79 -2 59 11 9 57 27 16 59 15 53 57 22 37 -0.45 -178 0 0 58 25 35 7 10 9.7 2 80 -3 59 17 37 57 33 56 59 22 20 57 29 18 -0.46 -177 0 0 58 31 48 7 10 9.5 3 80 -3 59 23 44 57 40 15 59 28 26 57 35 38 -0.47 -176 0 0 58 37 40 7 10 9.3 3 81 -4 59 29 30 57 46 13 59 34 11 57 41 36 -0.47 -175 0 0 58 43 11 7 10 9.1 4 82 -4 59 34 55 57 51 50 59 39 37 57 47 13 -0.48 -174 0 0 58 48 21 7 10 8.8 4 83 -5 59 40 1 57 57 5 59 44 41 57 52 29 -0.48 -173 0 0 58 53 11 7 10 8.5 5 84 -5 59 44 46 58 2 0 59 49 26 57 57 24 -0.48 -172 0 0 58 57 41 7 10 8.2 5 85 -5 59 49 11 58 6 34 59 53 51 58 1 58 -0.48 -171 0 0 59 1 51 7 10 7.8 6 86 -6 59 53 17 58 10 47 59 57 56 58 6 12 -0.48 -170 0 0 59 5 40 7 10 7.4 6 86 -6 59 57 2 58 14 41 60 1 41 58 10 6 -0.48 -169 0 0 59 9 10 7 10 6.9 7 87 -7 60 0 28 58 18 14 60 5 7 58 13 39 -0.49 -168 0 0 59 12 19 7 10 6.4 7 88 -7 60 3 35 58 21 26 60 8 13 58 16 52 -0.49 -167 0 0 59 15 9 7 10 5.9 8 89 -8 60 6 22 58 24 19 60 11 0 58 19 45 -0.49 -166 0 0 59 17 40 7 10 5.3 8 90 -8 60 8 50 58 26 52 60 13 28 58 22 18 -0.49 -165 0 0 59 19 51 7 10 4.7 9 91 -8 60 10 59 58 29 5 60 15 37 58 24 31 -0.49 -164 0 0 59 21 42 7 10 4.1 9 92 -9 60 12 49 58 30 58 60 17 26 58 26 25 -0.49 -163 0 0 59 23 14 7 10 3.5 10 92 -9 60 14 19 58 32 31 60 18 57 58 27 58 -0.49 -162 0 0 59 24 27 7 10 2.8 10 93 -10 60 15 31 58 33 45 60 20 8 58 29 12 -0.49 -161 0 0 59 25 20 7 10 2.1 11 94 -10 60 16 24 58 34 39 60 21 1 58 30 6 -0.49 -160 0 0 59 25 54 7 10 1.3 11 95 -10 60 16 57 58 35 14 60 21 35 58 30 41 -0.49 -159 0 0 59 26 9 7 10 0.5 12 96 -11 60 17 12 58 35 29 60 21 49 58 30 56 -0.49 -158 0 0 59 26 5 7 9 59.7 12 97 -11 60 17 8 58 35 24 60 21 45 58 30 51 -0.49 -157 0 0 59 25 42 7 9 58.8 13 98 -12 60 16 45 58 35 0 60 21 23 58 30 27 -0.49 -156 0 0 59 24 59 7 9 57.9 13 98 -12 60 16 4 58 34 17 60 20 41 58 29 43 -0.49 -155 0 0 59 23 57 7 9 57.0 14 99 -12 60 15 3 58 33 13 60 19 40 58 28 40 -0.49 -154 0 0 59 22 36 7 9 56.0 14 100 -13 60 13 43 58 31 51 60 18 21 58 27 17 -0.49 -153 0 0 59 20 55 7 9 55.1 15 101 -13 60 12 5 58 30 8 60 16 43 58 25 35 -0.49 -152 0 0 59 18 56 7 9 54.0 15 102 -14 60 10 8 58 28 6 60 14 46 58 23 32 -0.49 -151 0 0 59 16 36 7 9 53.0 16 103 -14 60 7 51 58 25 44 60 12 29 58 21 10 -0.49 -150 0 0 59 13 58 7 9 51.9 16 104 -14 60 5 15 58 23 3 60 9 54 58 18 29 -0.49 -149 0 0 59 11 0 7 9 50.7 17 105 -15 60 2 21 58 20 2 60 6 59 58 15 27 -0.49 -148 0 0 59 7 42 7 9 49.5 17 105 -15 59 59 7 58 16 40 60 3 46 58 12 5 -0.49 -147 0 0 59 4 5 7 9 48.3 18 106 -16 59 55 33 58 12 59 60 0 13 58 8 24 -0.49 -146 0 0 59 0 8 7 9 47.1 18 107 -16 59 51 40 58 8 58 59 56 20 58 4 22 -0.49 -145 0 0 58 55 51 7 9 45.8 19 108 -16 59 47 28 58 4 36 59 52 8 58 0 0 -0.49 -144 0 0 58 51 14 7 9 44.5 19 109 -17 59 42 56 57 59 54 59 47 37 57 55 18 -0.49 -143 0 0 58 46 16 7 9 43.1 20 110 -17 59 38 4 57 54 52 59 42 45 57 50 15 -0.49 -142 0 0 58 40 59 7 9 41.7 20 111 -18 59 32 52 57 49 29 59 37 34 57 44 52 -0.50 -141 0 0 58 35 21 7 9 40.3 21 112 -18 59 27 20 57 43 46 59 32 3 57 39 8 -0.50 -140 0 0 58 29 23 7 9 38.8 21 112 -18 59 21 28 57 37 41 59 26 11 57 33 3 -0.50 -139 0 0 58 23 4 7 9 37.3 22 113 -19 59 15 16 57 31 16 59 20 0 57 26 37 -0.50 -138 0 0 58 16 24 7 9 35.7 23 114 -19 59 8 43 57 24 29 59 13 27 57 19 49 -0.50 -137 0 0 58 9 23 7 9 34.1 23 115 -19 59 1 49 57 17 21 59 6 34 57 12 41 -0.50 -136 0 0 58 2 1 7 9 32.4 24 116 -20 58 54 34 57 9 52 58 59 20 57 5 11 -0.50 -135 0 0 57 54 17 7 9 30.7 24 117 -20 58 46 59 57 2 0 58 51 45 56 57 19 -0.50 -134 0 0 57 46 12 7 9 29.0 25 118 -21 58 39 1 56 53 47 58 43 48 56 49 5 -0.50 -133 0 0 57 37 45 7 9 27.2 25 119 -21 58 30 43 56 45 12 58 35 30 56 40 29 -0.50 -132 0 0 57 28 55 7 9 25.3 26 120 -21 58 22 2 56 36 14 58 26 51 56 31 30 -0.50 -131 0 0 57 19 44 7 9 23.4 26 121 -22 58 13 0 56 26 54 58 17 49 56 22 9 -0.50 -130 0 0 57 10 10 7 9 21.5 27 121 -22 58 3 35 56 17 10 58 8 25 56 12 25 -0.50 -129 0 0 57 0 13 7 9 19.5 27 122 -22 57 53 47 56 7 4 57 58 39 56 2 18 -0.50 -128 0 0 56 49 53 7 9 17.5 28 123 -23 57 43 37 55 56 35 57 48 29 55 51 48 -0.50 -127 0 0 56 39 10 7 9 15.4 28 124 -23 57 33 4 55 45 42 57 37 57 55 40 54 -0.50 -126 0 0 56 28 3 7 9 13.2 29 125 -24 57 22 8 55 34 25 57 27 2 55 29 36 -0.50 -125 0 0 56 16 33 7 9 11.0 30 126 -24 57 10 48 55 22 44 57 15 43 55 17 55 -0.50 -124 0 0 56 4 38 7 9 8.8 30 127 -24 56 59 5 55 10 39 57 4 0 55 5 49 -0.50 -123 0 0 55 52 20 7 9 6.4 31 128 -25 56 46 57 54 58 10 56 51 54 54 53 18 -0.50 -122 0 0 55 39 36 7 9 4.1 31 129 -25 56 34 25 54 45 15 56 39 23 54 40 23 -0.50 -121 0 0 55 26 28 7 9 1.6 32 130 -25 56 21 28 54 31 56 56 26 27 54 27 2 -0.50 -120 0 0 55 12 54 7 8 59.1 32 131 -26 56 8 6 54 18 11 56 13 6 54 13 16 -0.50 -119 0 0 54 58 55 7 8 56.6 33 132 -26 55 54 19 54 4 0 55 59 20 53 59 4 -0.50 -118 0 0 54 44 30 7 8 53.9 34 132 -26 55 40 6 53 49 23 55 45 9 53 44 26 -0.50 -117 0 0 54 29 39 7 8 51.2 34 133 -27 55 25 28 53 34 20 55 30 31 53 29 22 -0.50 -116 0 0 54 14 22 7 8 48.5 35 134 -27 55 10 23 53 18 51 55 15 28 53 13 52 -0.50 -115 0 0 53 58 38 7 8 45.6 35 135 -28 54 54 52 53 2 55 54 59 58 52 57 55 -0.50 -114 0 0 53 42 27 7 8 42.7 36 136 -28 54 38 54 52 46 31 54 44 1 52 41 30 -0.50 -113 0 0 53 25 49 7 8 39.8 37 137 -28 54 22 29 52 29 41 54 27 37 52 24 38 -0.50 -112 0 0 53 8 44 7 8 36.7 37 138 -29 54 5 36 52 12 22 54 10 46 52 7 19 -0.50 -111 0 0 52 51 11 7 8 33.6 38 139 -29 53 48 16 51 54 36 53 53 27 51 49 32 -0.50 -110 0 0 52 33 9 7 8 30.4 38 140 -29 53 30 28 51 36 22 53 35 40 51 31 16 -0.50 -109 0 0 52 14 39 7 8 27.1 39 141 -30 53 12 12 51 17 39 53 17 25 51 12 32 -0.50 -108 0 0 51 55 41 7 8 23.8 40 142 -30 52 53 27 50 58 28 52 58 41 50 53 20 -0.50 -107 0 0 51 36 14 7 8 20.3 40 143 -30 52 34 13 50 38 47 52 39 29 50 33 38 -0.50 -106 0 0 51 16 17 7 8 16.8 41 144 -31 52 14 30 50 18 38 52 19 47 50 13 28 -0.50 -105 0 0 50 55 52 7 8 13.2 42 145 -31 51 54 18 49 57 59 51 59 36 49 52 48 -0.50 -104 0 0 50 34 57 7 8 9.5 42 146 -31 51 33 36 49 36 51 51 38 56 49 31 38 -0.50 -103 0 0 50 13 32 7 8 5.7 43 147 -32 51 12 25 49 15 13 51 17 45 49 9 59 -0.50 -102 0 0 49 51 37 7 8 1.9 43 149 -32 50 50 44 48 53 5 50 56 5 48 47 50 -0.50 -101 0 0 49 29 12 7 7 57.9 44 150 -32 50 28 32 48 30 27 50 33 55 48 25 11 -0.50 -100 0 0 49 6 16 7 7 53.9 45 151 -32 50 5 50 48 7 19 50 11 14 48 2 1 -0.50 - 99 0 0 48 42 50 7 7 49.7 45 152 -33 49 42 37 47 43 40 49 48 3 47 38 22 -0.50 - 98 0 0 48 18 54 7 7 45.5 46 153 -33 49 18 54 47 19 31 49 24 21 47 14 12 -0.50 - 97 0 0 47 54 27 7 7 41.2 47 154 -33 48 54 40 46 54 52 49 0 8 46 49 31 -0.50 - 96 0 0 47 29 30 7 7 36.7 47 155 -34 48 29 55 46 29 42 48 35 24 46 24 20 -0.50 - 95 0 0 47 4 1 7 7 32.2 48 157 -34 48 4 40 46 4 1 48 10 10 45 58 39 -0.50 - 94 0 0 46 38 2 7 7 27.6 49 158 -34 47 38 53 45 37 50 47 44 24 45 32 27 -0.50 - 93 0 0 46 11 33 7 7 22.9 49 159 -34 47 12 35 45 11 9 47 18 8 45 5 44 -0.50 - 92 0 0 45 44 32 7 7 18.1 50 160 -35 46 45 47 44 43 57 46 51 20 44 38 31 -0.50 - 91 0 0 45 17 2 7 7 13.1 51 162 -35 46 18 27 44 16 15 46 24 2 44 10 48 -0.50 - 90 0 0 44 49 0 7 7 8.1 51 163 -35 45 50 37 43 48 3 45 56 13 43 42 35 -0.50 - 89 0 0 44 20 29 7 7 3.0 52 164 -35 45 22 17 43 19 21 45 27 53 43 13 52 -0.50 - 88 0 0 43 51 27 7 6 57.8 53 166 -35 44 53 26 42 50 9 44 59 3 42 44 40 -0.50 - 87 0 0 43 21 56 7 6 52.4 53 167 -36 44 24 5 42 20 28 44 29 43 42 14 57 -0.50 - 86 0 0 42 51 55 7 6 47.0 54 169 -36 43 54 13 41 50 17 43 59 53 41 44 46 -0.50 - 85 0 0 42 21 25 7 6 41.5 55 170 -36 43 23 53 41 19 38 43 29 33 41 14 6 -0.50 - 84 0 0 41 50 26 7 6 35.9 55 172 -36 42 53 2 40 48 31 42 58 43 40 42 58 -0.50 - 83 0 0 41 18 58 7 6 30.1 56 173 -36 42 21 44 40 16 55 42 27 25 40 11 21 -0.50 - 82 0 0 40 47 3 7 6 24.3 56 175 -36 41 49 56 39 44 52 41 55 39 39 39 17 -0.50 - 81 0 0 40 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14 17 43 5 15 30 50 -0.50 - 42 0 0 15 59 27 7 1 43.0 54 260 -23 17 0 14 14 59 18 17 5 45 14 53 55 -0.50 - 41 0 0 15 22 37 7 1 36.1 53 262 -22 16 23 12 14 22 40 16 28 41 14 17 17 -0.50 - 40 0 0 14 46 5 7 1 29.2 52 263 -22 15 46 28 13 46 20 15 51 56 13 40 58 -0.50 - 39 0 0 14 9 53 7 1 22.5 51 264 -21 15 10 3 13 10 19 15 15 30 13 4 58 -0.50 - 38 0 0 13 34 0 7 1 15.8 50 265 -20 14 33 58 12 34 38 14 39 24 12 29 19 -0.50 - 37 0 0 12 58 29 7 1 9.2 49 266 -19 13 58 14 11 59 20 14 3 39 11 54 1 -0.50 - 36 0 0 12 23 20 7 1 2.7 48 267 -18 13 22 52 11 24 23 13 28 16 11 19 6 -0.50 - 35 0 0 11 48 34 7 0 56.3 48 268 -18 12 47 54 10 49 50 12 53 17 10 44 34 -0.50 - 34 0 0 11 14 13 7 0 50.0 47 269 -17 12 13 19 10 15 41 12 18 41 10 10 26 -0.50 - 33 0 0 10 40 16 7 0 43.9 46 269 -16 11 39 10 9 41 56 11 44 30 9 36 42 -0.50 - 32 0 0 10 6 45 7 0 37.8 45 270 -15 11 5 26 9 8 38 11 10 45 9 3 25 -0.50 - 31 0 0 9 33 41 7 0 31.8 44 271 -14 10 32 8 8 35 46 10 37 26 8 30 35 -0.50 - 30 0 0 9 1 4 7 0 26.0 43 272 -14 9 59 18 8 3 22 10 4 35 7 58 11 -0.50 - 29 0 0 8 28 55 7 0 20.2 42 272 -13 9 26 56 7 31 25 9 32 12 7 26 16 -0.50 - 28 0 0 7 57 14 7 0 14.6 41 273 -12 8 55 3 6 59 57 9 0 17 6 54 49 -0.50 - 27 0 0 7 26 3 7 0 9.1 40 273 -11 8 23 39 6 28 59 8 28 52 6 23 52 -0.50 - 26 0 0 6 55 22 7 0 3.8 39 274 -10 7 52 45 5 58 30 7 57 57 5 53 24 -0.50 - 25 0 0 6 25 11 6 59 58.5 38 274 -9 7 22 22 5 28 32 7 27 32 5 23 27 -0.50 - 24 0 0 5 55 32 6 59 53.4 37 275 -8 6 52 29 4 59 5 6 57 39 4 54 1 -0.50 - 23 0 0 5 26 24 6 59 48.4 36 275 -7 6 23 9 4 30 9 6 28 18 4 25 7 -0.50 - 22 0 0 4 57 48 6 59 43.6 35 275 -7 5 54 21 4 1 46 5 59 28 3 56 44 -0.50 - 21 0 0 4 29 45 6 59 38.9 34 276 -6 5 26 5 3 33 55 5 31 12 3 28 54 -0.50 - 20 0 0 4 2 15 6 59 34.3 33 276 -5 4 58 23 3 6 36 5 3 28 3 1 37 -0.50 - 19 0 0 3 35 18 6 59 29.9 32 276 -4 4 31 14 2 39 51 4 36 18 2 34 53 -0.50 - 18 0 0 3 8 55 6 59 25.6 31 277 -3 4 4 39 2 13 40 4 9 42 2 8 43 -0.50 - 17 0 0 2 43 7 6 59 21.4 30 277 -2 3 38 39 1 48 3 3 43 41 1 43 6 -0.50 - 16 0 0 2 17 52 6 59 17.4 29 277 -1 3 13 13 1 23 0 3 18 14 1 18 4 -0.50 - 15 0 0 1 53 13 6 59 13.5 28 277 0 2 48 22 0 58 31 2 53 22 0 53 37 -0.50 - 14 0 0 1 29 8 6 59 9.8 27 277 1 2 24 6 0 34 38 2 29 5 0 29 44 -0.50 - 13 0 0 1 5 39 6 59 6.2 26 277 2 2 0 26 0 11 19 2 5 24 0 6 27 -0.50 - 12 0 0 0 42 46 6 59 2.7 25 278 3 1 37 22 - 0 11 24 1 42 19 - 0 16 16 -0.50 - 11 0 0 0 20 28 6 58 59.4 24 278 3 1 14 54 - 0 33 31 1 19 49 - 0 38 22 -0.50 - 10 0 0 - 0 1 14 6 58 56.3 22 278 4 0 53 2 - 0 55 3 0 57 56 - 0 59 53 -0.51 - 9 0 0 - 0 22 20 6 58 53.2 21 278 5 0 31 46 - 1 15 59 0 36 40 - 1 20 48 -0.51 - 8 0 0 - 0 42 49 6 58 50.3 20 278 6 0 11 7 - 1 36 18 0 16 0 - 1 41 7 -0.51 - 7 0 0 - 1 2 41 6 58 47.6 19 278 7 - 0 8 55 - 1 56 2 - 0 4 3 - 2 0 49 -0.51 - 6 0 0 - 1 21 57 6 58 45.0 18 278 8 - 0 28 21 - 2 15 9 - 0 23 29 - 2 19 55 -0.51 - 5 0 0 - 1 40 37 6 58 42.5 17 278 9 - 0 47 9 - 2 33 39 - 0 42 18 - 2 38 25 -0.51 - 4 0 0 - 1 58 39 6 58 40.2 16 278 10 - 1 5 20 - 2 51 33 - 1 0 30 - 2 56 18 -0.51 - 3 0 0 - 2 16 4 6 58 38.1 15 278 11 - 1 22 54 - 3 8 50 - 1 18 5 - 3 13 34 -0.51 - 2 0 0 - 2 32 52 6 58 36.0 14 278 12 - 1 39 50 - 3 25 30 - 1 35 2 - 3 30 13 -0.51 - 1 0 0 - 2 49 3 6 58 34.1 13 278 13 - 1 56 9 - 3 41 33 - 1 51 22 - 3 46 16 -0.52 0 0 0 - 3 4 37 6 58 32.4 12 278 14 - 2 11 50 - 3 56 59 - 2 7 4 - 4 1 41 -0.52 1 0 0 - 3 19 33 6 58 30.8 11 278 15 - 2 26 54 - 4 11 48 - 2 22 8 - 4 16 30 -0.52 2 0 0 - 3 33 52 6 58 29.3 10 278 16 - 2 41 20 - 4 26 0 - 2 36 34 - 4 30 41 -0.52 3 0 0 - 3 47 33 6 58 28.0 9 278 17 - 2 55 8 - 4 39 35 - 2 50 23 - 4 44 15 -0.53 4 0 0 - 4 0 37 6 58 26.8 8 278 17 - 3 8 18 - 4 52 32 - 3 3 34 - 4 57 12 -0.53 5 0 0 - 4 13 4 6 58 25.7 7 278 18 - 3 20 51 - 5 4 53 - 3 16 7 - 5 9 32 -0.54 6 0 0 - 4 24 52 6 58 24.8 6 278 19 - 3 32 45 - 5 16 35 - 3 28 2 - 5 21 14 -0.54 7 0 0 - 4 36 3 6 58 24.1 5 278 20 - 3 44 2 - 5 27 41 - 3 39 19 - 5 32 19 -0.55 8 0 0 - 4 46 36 6 58 23.4 4 278 21 - 3 54 40 - 5 38 9 - 3 49 58 - 5 42 47 -0.57 9 0 0 - 4 56 32 6 58 22.9 3 278 22 - 4 4 41 - 5 48 0 - 3 59 59 - 5 52 37 -0.59 10 0 0 - 5 5 50 6 58 22.6 2 277 23 - 4 14 3 - 5 57 13 - 4 9 22 - 6 1 50 -0.64 11 0 0 - 5 14 30 6 58 22.4 1 277 24 - 4 22 47 - 6 5 49 - 4 18 6 - 6 10 26 -0.76 12 0 0 - 5 22 32 6 58 22.3 0 277 25 - 4 30 53 - 6 13 48 - 4 26 13 - 6 18 24 -2.68 Uncertainty in time = +/- 2 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: TYC 0346-00728-1 * constellation : Virgo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 15 05 26.0338 DE: +07 17 55.184 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 15 05 26.0340 DE: +07 17 55.185 * position source: Gaia DR3 * standard error: RA,DE [mas]: (1.200,1.100) * V mag [mag]: 9.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (747) Winchester asteroid class: approx. diameter [km]: 169 approx. diameter ["]: 0.075 distance from Earth [AU]: 3.09660 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#120 date of fit: 2023 Feb 07 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): 0.012", 0.002", 111.802° remarks: * orbital elements for (747)Winchester : Mean anomaly = 160.6326841323 deg Arg. of pericenter = 277.4938960759 deg Long. of node = 129.0821765401 deg Inclination = 18.2141740501 deg Eccentricity = 0.3396483086 Semimajor axis = 3.0011379122 AU Perihelion dist = 1.9818064965 AU Mag: H = 7.87, G = 0.15 Epoch of elements : MJD 60045.29465278 TDT (2023 Apr 11.2947) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1202023Feb07,10.47,2023,4,11,7.071336,0.236067,0.379372,-7.711923,4.807527,-0.002682,-0.001474,0.000001,-0.000001 -78.6667,7.2063,74.22,8.25,False TYC 0346-00728-1,15.09056495,7.2986623,0.00,9.63,0.00,0.0,0,,15.10980998,7.2063148,4.27,0.00,0,0,0 747,Winchester,13.88,168.6,3.0966,0,0,-1.471,13.65,,10.2,0 0,160.5768,2023,4,11,277.4939,129.0822,18.2142,0.33965,3.00114,1.98181,7.88,5.0,0.15 1.045,0.0121,0.0027,112,0.0034,Known errors,-1.00,-1,-1,-1 20230411_0728-1,59990.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:59 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org