IOTA/IOTA-ES occultation update for (764) Gedania / TYC 0775-00375-1 event on 2023 Jan 18, 22:37 UT Visible from Russia Summary ------- On 2023 Jan 18 UT, the 64.5 km diameter asteroid (764) Gedania will occult a 10.2 mag star in the constellation Gemini for observers along a path across Russia. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.88 mag to 14.05 mag (the magnitude of the asteroid) for at most 5.110 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: 94 * date and approx. time of event: 2023 Jan 18, 22:33 - 2023 Jan 18, 22:42 * geocentric midpoint of event [JD]: 2459963.44308600 * magnitude of target star: 10.20 * magnitude drop [mag]: 3.88 * estimated maximum duration [s]: 5.110 * Moon: 12 % sunlit, 146° distance * Sun: 168° distance * rough path description: Russia Additional comments ------------------- RUWE high The occultation path -------------------- * approximate projected width [km]: 124 * 1 sigma uncertainty interval [path widths]: +/- 0.46 * 1 sigma uncertainty interval [seconds]: +/- 3.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.031, +/- 0.020) * 1 sigma uncertainty ellipse (major, minor, PA): (0.032", 0.019", 107°) * approx speed of asteroid's shadow [km/s]: 12.6155 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0775-00375-1 by 764 Gedania on 2023 Jan 18 Centre Star Star Sun Path Limit1 Path Limit2 Error Limit1 Error Limit2 Alt E. Longitude Latitude U.T. Alt Az Alt Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " o ' " o ' " o ' " o ' " Longitude Latitude Longitude Latitude Longitude Latitude Longitude Latitude .. .. .. .. .. .. .. .. .... .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. 118 24 42 58 14 18 ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .... .. .. .. 120 18 45 58 18 19 ... .. .. .. .. .. 115 6 4 59 6 4 ... .. .. .. .. .. .... 124 12 30 57 53 21 22 33 42.6 1 295 -12 116 28 36 59 18 49 ... .. .. .. .. .. 112 32 39 59 45 27 ... .. .. .. .. .. .... 118 29 25 59 24 35 22 33 45.5 4 290 -15 113 43 17 60 1 36 ... .. .. .. .. .. 110 21 29 60 18 38 ... .. .. .. .. .. -1.08 115 21 25 60 13 46 22 33 48.3 6 287 -17 111 25 17 60 36 47 121 5 9 59 21 27 108 24 10 60 47 53 ... .. .. .. .. .. -1.45 112 51 59 60 52 16 22 33 51.2 8 285 -18 109 23 20 61 7 26 117 15 38 60 22 11 106 36 27 61 14 20 124 24 4 59 4 13 -1.53 110 42 46 61 25 5 22 33 54.1 9 283 -19 107 32 10 61 34 57 114 29 51 61 5 24 104 55 53 61 38 41 119 7 53 60 28 49 -1.56 108 46 25 61 54 11 22 33 56.9 10 281 -20 105 48 52 62 0 9 112 11 7 61 41 1 103 20 51 62 1 21 116 2 7 61 17 44 -1.58 106 59 7 62 20 37 22 33 59.8 11 280 -21 104 11 34 62 23 32 110 8 19 62 12 5 101 50 16 62 22 38 113 33 11 61 56 23 -1.60 105 18 36 62 45 1 22 34 2.6 11 278 -22 102 39 3 62 45 26 108 16 15 62 40 1 100 23 19 62 42 45 111 23 50 62 29 26 -1.61 103 43 23 63 7 47 22 34 5.5 12 277 -23 101 10 24 63 6 5 106 31 58 63 5 36 98 59 26 63 1 51 109 27 5 62 58 50 -1.61 102 12 24 63 29 12 22 34 8.4 13 275 -23 99 44 58 63 25 41 104 53 38 63 29 22 97 38 7 63 20 5 107 39 11 63 25 34 -1.62 100 44 56 63 49 28 22 34 11.2 14 274 -24 98 22 15 63 44 22 103 20 2 63 51 38 96 19 1 63 37 33 105 57 56 63 50 17 -1.62 99 20 22 64 8 44 22 34 14.1 14 273 -25 97 1 52 64 2 14 101 50 16 64 12 39 95 1 51 63 54 19 104 21 52 64 13 22 -1.63 97 58 17 64 27 9 22 34 17.0 15 271 -25 95 43 29 64 19 23 100 23 40 64 32 37 93 46 21 64 10 27 102 49 59 64 35 6 -1.63 96 38 21 64 44 48 22 34 19.8 15 270 -26 94 26 50 64 35 52 98 59 45 64 51 38 92 32 20 64 26 1 101 21 31 64 55 41 -1.63 95 20 14 65 1 45 22 34 22.7 16 269 -26 93 11 42 64 51 46 97 38 6 65 9 50 91 19 37 64 41 4 99 55 54 65 15 16 -1.63 94 3 43 65 18 5 22 34 25.6 16 268 -27 91 57 54 65 7 7 96 18 25 65 27 19 90 8 3 64 55 37 98 32 42 65 34 0 -1.64 92 48 37 65 33 51 22 34 28.4 17 266 -27 90 45 18 65 21 58 95 0 26 65 44 8 88 57 31 65 9 43 97 11 34 65 51 57 -1.64 91 34 44 65 49 5 22 34 31.3 17 265 -28 89 33 45 65 36 21 93 43 55 66 0 20 87 47 54 65 23 24 95 52 13 66 9 12 -1.64 90 21 58 66 3 50 22 34 34.2 18 264 -28 88 23 8 65 50 18 92 28 41 66 16 0 86 39 6 65 36 41 94 34 24 66 25 50 -1.64 89 10 9 66 18 8 22 34 37.0 18 263 -28 87 13 21 66 3 51 91 14 36 66 31 9 85 31 3 65 49 35 93 17 56 66 41 54 -1.64 87 59 11 66 32 1 22 34 39.9 19 262 -29 86 4 19 66 17 0 90 1 31 66 45 50 84 23 39 66 2 8 92 2 38 66 57 25 -1.64 86 48 59 66 45 29 22 34 42.8 19 260 -29 84 55 57 66 29 48 88 49 19 67 0 4 83 16 51 66 14 22 90 48 23 67 12 27 -1.64 85 39 28 66 58 35 22 34 45.6 20 259 -30 83 48 10 66 42 15 87 37 54 67 13 54 82 10 35 66 26 15 89 35 2 67 27 2 -1.65 84 30 33 67 11 20 22 34 48.5 20 258 -30 82 40 56 66 54 22 86 27 11 67 27 20 81 4 48 66 37 51 88 22 28 67 41 11 -1.65 83 22 11 67 23 44 22 34 51.4 20 257 -30 81 34 11 67 6 10 85 17 4 67 40 24 79 59 27 66 49 9 87 10 37 67 54 56 -1.65 82 14 17 67 35 49 22 34 54.2 21 256 -31 80 27 50 67 17 40 84 7 30 67 53 7 78 54 29 67 0 10 85 59 23 68 8 18 -1.65 81 6 49 67 47 35 22 34 57.1 21 255 -31 79 21 53 67 28 53 82 58 25 68 5 30 77 49 52 67 10 54 84 48 42 68 21 18 -1.65 79 59 43 67 59 4 22 34 59.9 21 254 -31 78 16 16 67 39 50 81 49 45 68 17 33 76 45 33 67 21 23 83 38 30 68 33 57 -1.65 78 52 54 68 10 14 22 35 2.8 22 252 -32 77 10 57 67 50 30 80 41 27 68 29 18 75 41 32 67 31 36 82 28 42 68 46 17 -1.65 77 46 25 68 21 9 22 35 5.7 22 251 -32 76 5 54 68 0 54 79 33 26 68 40 45 74 37 42 67 41 35 81 19 13 68 58 17 -1.65 76 40 12 68 31 47 22 35 8.5 22 250 -32 75 1 3 68 11 3 78 25 45 68 51 55 73 34 8 67 51 19 80 10 6 69 10 0 -1.65 75 34 12 68 42 10 22 35 11.4 23 249 -32 73 56 26 68 20 57 77 18 18 69 2 49 72 30 46 68 0 49 79 1 15 69 21 25 -1.65 74 28 24 68 52 18 22 35 14.3 23 248 -33 72 52 0 68 30 38 76 11 4 69 13 26 71 27 34 68 10 6 77 52 37 69 32 32 -1.65 73 22 45 69 2 10 22 35 17.1 23 247 -33 71 47 44 68 40 4 75 4 0 69 23 48 70 24 31 68 19 9 76 44 11 69 43 24 -1.65 72 17 14 69 11 49 22 35 20.0 24 246 -33 70 43 35 68 49 16 73 57 4 69 33 55 69 21 35 68 27 59 75 35 54 69 53 59 -1.65 71 11 50 69 21 13 22 35 22.9 24 244 -33 69 39 32 68 58 15 72 50 16 69 43 47 68 18 46 68 36 36 74 27 44 70 4 19 -1.65 70 6 32 69 30 24 22 35 25.7 24 243 -34 68 35 35 69 7 1 71 43 33 69 53 24 67 16 2 68 45 1 73 19 40 70 14 23 -1.66 69 1 17 69 39 21 22 35 28.6 24 242 -34 67 31 42 69 15 34 70 36 54 70 2 47 66 13 22 68 53 13 72 11 40 70 24 13 -1.66 67 56 6 69 48 5 22 35 31.5 25 241 -34 66 27 53 69 23 55 69 30 18 70 11 57 65 10 46 69 1 14 71 3 43 70 33 48 -1.66 66 50 57 69 56 36 22 35 34.3 25 240 -34 65 24 6 69 32 3 68 23 43 70 20 53 64 8 13 69 9 2 69 55 47 70 43 8 -1.66 65 45 48 70 4 54 22 35 37.2 25 239 -34 64 20 20 69 39 58 67 17 9 70 29 35 63 5 42 69 16 39 68 47 50 70 52 15 -1.66 64 40 40 70 12 59 22 35 40.1 25 238 -35 63 16 35 69 47 42 66 10 35 70 38 4 62 3 12 69 24 3 67 39 53 71 1 8 -1.66 63 35 31 70 20 52 22 35 42.9 26 236 -35 62 12 51 69 55 14 65 3 59 70 46 20 61 0 43 69 31 17 66 31 53 71 9 47 -1.66 62 30 21 70 28 33 22 35 45.8 26 235 -35 61 9 5 70 2 34 63 57 20 70 54 23 59 58 14 69 38 19 65 23 51 71 18 13 -1.66 61 25 9 70 36 2 22 35 48.6 26 234 -35 60 5 19 70 9 42 62 50 39 71 2 14 58 55 44 69 45 10 64 15 44 71 26 26 -1.66 60 19 54 70 43 18 22 35 51.5 26 233 -35 59 1 31 70 16 39 61 43 54 71 9 52 57 53 14 69 51 49 63 7 32 71 34 26 -1.66 59 14 36 70 50 23 22 35 54.4 27 232 -35 57 57 41 70 23 24 60 37 5 71 17 18 56 50 42 69 58 18 61 59 15 71 42 13 -1.66 58 9 15 70 57 16 22 35 57.2 27 231 -36 56 53 48 70 29 58 59 30 11 71 24 31 55 48 9 70 4 36 60 50 52 71 49 47 -1.66 57 3 49 71 3 57 22 36 0.1 27 229 -36 55 49 53 70 36 21 58 23 12 71 31 32 54 45 33 70 10 43 59 42 22 71 57 8 -1.66 55 58 19 71 10 26 22 36 3.0 27 228 -36 54 45 54 70 42 33 57 16 6 71 38 21 53 42 55 70 16 39 58 33 45 72 4 17 -1.66 54 52 44 71 16 44 22 36 5.8 27 227 -36 53 41 51 70 48 33 56 8 55 71 44 58 52 40 15 70 22 25 57 25 0 72 11 13 -1.66 53 47 4 71 22 51 22 36 8.7 27 226 -36 52 37 44 70 54 23 55 1 37 71 51 23 51 37 31 70 27 59 56 16 6 72 17 57 -1.66 52 41 19 71 28 46 22 36 11.6 28 225 -36 51 33 34 71 0 1 53 54 12 71 57 37 50 34 45 70 33 24 55 7 5 72 24 28 -1.66 51 35 28 71 34 30 22 36 14.4 28 223 -36 50 29 19 71 5 29 52 46 40 72 3 38 49 31 55 70 38 38 53 57 54 72 30 48 -1.66 50 29 31 71 40 3 22 36 17.3 28 222 -36 49 25 0 71 10 46 51 39 1 72 9 28 48 29 2 70 43 41 52 48 35 72 36 55 -1.66 49 23 28 71 45 24 22 36 20.2 28 221 -37 48 20 36 71 15 52 50 31 14 72 15 6 47 26 6 70 48 34 51 39 6 72 42 49 -1.66 48 17 20 71 50 34 22 36 23.0 28 220 -37 47 16 8 71 20 47 49 23 20 72 20 32 46 23 6 70 53 17 50 29 28 72 48 32 -1.66 47 11 6 71 55 33 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2 51 67 46 53 -1.67 - 51 51 11 66 58 12 22 40 52.3 23 109 -25 - 50 19 8 66 38 19 - 53 28 43 67 17 32 - 48 58 5 66 19 24 - 55 4 41 67 34 57 -1.67 - 52 50 58 66 46 58 22 40 55.2 23 108 -24 - 51 17 48 66 27 30 - 54 29 39 67 5 50 - 49 55 45 66 8 58 - 56 6 45 67 22 47 -1.67 - 53 50 58 66 35 30 22 40 58.1 22 107 -24 - 52 16 40 66 16 29 - 55 30 50 66 53 54 - 50 53 36 65 58 20 - 57 9 6 67 10 22 -1.67 - 54 51 13 66 23 49 22 41 0.9 22 106 -24 - 53 15 45 66 5 15 - 56 32 19 66 41 43 - 51 51 41 65 47 30 - 58 11 47 66 57 41 -1.67 - 55 51 45 66 11 53 22 41 3.8 22 105 -23 - 54 15 6 65 53 48 - 57 34 7 66 29 17 - 52 49 59 65 36 26 - 59 14 50 66 44 44 -1.67 - 56 52 38 65 59 43 22 41 6.7 21 104 -23 - 55 14 45 65 42 6 - 58 36 17 66 16 35 - 53 48 33 65 25 10 - 60 18 18 66 31 30 -1.67 - 57 53 53 65 47 17 22 41 9.5 21 103 -23 - 56 14 44 65 30 10 - 59 38 53 66 3 37 - 54 47 25 65 13 40 - 61 22 18 66 17 58 -1.68 - 58 55 32 65 34 35 22 41 12.4 21 102 -22 - 57 15 5 65 18 0 - 60 41 58 65 50 21 - 55 46 38 65 1 55 - 62 26 46 66 4 7 -1.68 - 59 57 40 65 21 36 22 41 15.3 20 101 -22 - 58 15 52 65 5 33 - 61 45 36 65 36 46 - 56 46 13 64 49 56 - 63 31 52 65 49 56 -1.68 - 61 0 22 65 8 20 22 41 18.1 20 100 -21 - 59 17 5 64 52 50 - 62 49 48 65 22 53 - 57 46 14 64 37 42 - 64 37 38 65 35 25 -1.68 - 62 3 36 64 54 45 22 41 21.0 19 99 -21 - 60 18 50 64 39 50 - 63 54 40 65 8 39 - 58 46 42 64 25 12 - 65 44 11 65 20 31 -1.68 - 63 7 29 64 40 50 22 41 23.9 19 98 -20 - 61 21 12 64 26 32 - 65 0 17 64 54 3 - 59 47 40 64 12 24 - 66 51 36 65 5 13 -1.68 - 64 12 6 64 26 34 22 41 26.7 19 97 -20 - 62 24 9 64 12 55 - 66 6 45 64 39 5 - 60 49 16 63 59 20 - 67 59 59 64 49 29 -1.68 - 65 17 32 64 11 56 22 41 29.6 18 96 -19 - 63 27 49 63 58 57 - 67 14 10 64 23 41 - 61 51 26 63 45 56 - 69 9 30 64 33 18 -1.68 - 66 23 53 63 56 55 22 41 32.4 18 95 -19 - 64 32 16 63 44 38 - 68 22 39 64 7 51 - 62 54 18 63 32 13 - 70 20 19 64 16 37 -1.68 - 67 31 15 63 41 28 22 41 35.3 17 93 -18 - 65 37 37 63 29 57 - 69 32 21 63 51 33 - 63 57 57 63 18 9 - 71 32 32 63 59 23 -1.68 - 68 39 47 63 25 33 22 41 38.2 17 92 -18 - 66 43 56 63 14 51 - 70 43 29 63 34 43 - 65 2 28 63 3 43 - 72 46 24 63 41 33 -1.69 - 69 49 40 63 9 9 22 41 41.0 16 91 -17 - 67 51 22 62 59 18 - 71 56 8 63 17 18 - 66 7 57 62 48 53 - 74 2 9 63 23 3 -1.69 - 71 0 59 62 52 12 22 41 43.9 16 90 -17 - 69 0 6 62 43 17 - 73 10 35 62 59 15 - 67 14 30 62 33 37 - 75 20 4 63 3 48 -1.69 - 72 14 0 62 34 38 22 41 46.8 15 89 -16 - 70 10 12 62 26 45 - 74 27 4 62 40 30 - 68 22 19 62 17 54 - 76 40 32 62 43 42 -1.69 - 73 28 55 62 16 25 22 41 49.6 15 88 -15 - 71 21 53 62 9 38 - 75 45 56 62 20 57 - 69 31 28 62 1 41 - 78 4 2 62 22 37 -1.70 - 74 46 4 61 57 27 22 41 52.5 14 87 -15 - 72 35 23 61 51 54 - 77 7 39 62 0 29 - 70 42 8 61 44 55 - 79 31 9 62 0 24 -1.70 - 76 5 50 61 37 38 22 41 55.4 13 85 -14 - 73 50 59 61 33 28 - 78 32 43 61 38 57 - 71 54 33 61 27 32 - 81 2 44 61 36 49 -1.70 - 77 28 42 61 16 51 22 41 58.2 13 84 -13 - 75 9 0 61 14 13 - 80 1 52 61 16 10 - 73 8 58 61 9 29 - 82 39 54 61 11 34 -1.71 - 78 55 15 60 54 54 22 42 1.1 12 83 -13 - 76 29 54 60 54 5 - 81 36 4 60 51 52 - 74 25 42 60 50 40 - 84 24 17 60 44 12 -1.72 - 80 26 19 60 31 36 22 42 4.0 11 81 -12 - 77 54 11 60 32 52 - 83 16 42 60 25 40 - 75 45 9 60 31 0 - 86 18 30 60 14 0 -1.72 - 82 3 4 60 6 37 22 42 6.8 10 80 -11 - 79 22 34 60 10 26 - 85 5 52 59 57 1 - 77 7 49 60 10 20 - 88 27 3 59 39 46 -1.74 - 83 47 10 59 39 30 22 42 9.7 9 78 -10 - 80 56 2 59 46 28 - 87 7 6 59 24 57 - 78 34 19 59 48 29 - 90 59 20 58 58 59 -1.75 - 85 41 19 59 9 32 22 42 12.6 8 77 -9 - 82 35 59 59 20 37 - 89 27 0 58 47 41 - 80 5 32 59 25 14 - 94 22 51 58 4 13 -1.78 - 87 50 10 58 35 27 22 42 15.4 7 75 -7 - 84 24 32 58 52 19 - 92 21 41 58 0 56 - 81 42 41 59 0 16 ... .. .. .. .. .. -1.82 - 90 23 33 57 54 38 22 42 18.3 6 73 -6 - 86 25 12 58 20 37 - 97 13 59 56 42 32 - 83 27 37 58 33 3 ... .. .. .. .. .. -1.90 - 93 51 30 56 59 4 22 42 21.2 3 70 -4 - 88 44 42 57 43 43 ... .. .. .. .. .. - 85 23 13 58 2 51 ... .. .. .. .. .. -2.20 .. .. .. .. .. .. .. .. .... .. .. .. - 91 39 25 56 57 16 ... .. .. .. .. .. - 87 34 46 57 28 14 ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .... .. .. .. - 96 36 57 55 37 59 ... .. .. .. .. .. - 90 13 50 56 46 7 ... .. .. .. .. .. .... .. .. .. .. .. .. .. .. .... .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. - 94 0 46 55 45 49 ... .. .. .. .. .. .... Uncertainty in time = +/- 4 secs Prediction of 2022 Dec 1.1 Data for the target star ------------------------ * name: TYC 0775-00375-1 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 18 47.1846 DE: +13 55 01.648 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 18 47.1846 DE: +13 55 01.648 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.400,0.300) * V mag [mag]: 10.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (764) Gedania asteroid class: approx. diameter [km]: 65 approx. diameter ["]: 0.044 distance from Earth [AU]: 2.03710 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#54 date of fit: 2022 Nov 22 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): 0.032", 0.019", 106.751° remarks: * orbital elements for (764)Gedania : Mean anomaly = 46.8033684276 deg Arg. of pericenter = 158.7004795932 deg Long. of node = 258.7621113393 deg Inclination = 10.0004686483 deg Eccentricity = 0.0926551890 Semimajor axis = 3.1926605246 AU Perihelion dist = 2.8968439604 AU Mag: H = 9.75, G = 0.15 Epoch of elements : MJD 59962.94298611 TDT (2023 Jan 18.9430) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542022Nov22,5.11,2023,1,18,22.634064,-0.015757,0.854362,-7.119296,-0.131983,0.001022,0.000720,0.000002,0.000000 12.4397,13.8747,-156.90,-20.45,False TYC 0775-00375-1,7.31310685,13.9171245,0.00,10.20,0.00,0.0,0,,7.33500081,13.8747384,3.88,0.00,0,0,0 764,Gedania,14.05,64.5,2.0371,0,0,-2.109,-0.57,,4.0,0 0,46.6404,2023,1,18,158.7005,258.7621,10.0005,0.09266,3.19266,2.89684,9.75,5.0,0.15 1.465,0.0320,0.0187,107,0.0203,Known errors,-1.00,-1,-1,-1 20230118_0375-1,59914.09 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Dec 01, 02:14 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org