IOTA/IOTA-ES occultation update for (3089) Oujianquan / TYC 6208-00028-1 event on 2024 Aug 12, 12:23 UT Visible from Summary ------- On 2024 Aug 12 UT, the 35.465701840826 km diameter asteroid (3089) Oujianquan will occult a 10.6 mag star in the constellation Libra for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.26 mag to 15.85 mag (the magnitude of the asteroid) for at most 2.580 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: 99 * date and approx. time of event: 2024 Aug 12, 12:17 - 2024 Aug 12, 12:30 * geocentric midpoint of event [JD]: 2460535.01643050 * magnitude of target star: 10.60 * magnitude drop [mag]: 5.26 * estimated maximum duration [s]: 2.580 * Moon: 50 % sunlit, 13° distance * Sun: 102° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 42 * 1 sigma uncertainty interval [path widths]: +/- 0.29 * 1 sigma uncertainty interval [seconds]: +/- 2.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.023, +/- 0.014) * 1 sigma uncertainty ellipse (major, minor, PA): (0.026", 0.006", 119°) * approx speed of asteroid's shadow [km/s]: 13.8020 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6208-00028-1 by 3089 Oujianquan on 2024 Aug 12 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 49 0 0 62 32 49 12 17 10.6 0 138 30 62 16 1 .. .. .. 62 6 17 .. .. .. .... 50 0 0 62 1 44 12 17 10.6 1 139 30 61 44 48 62 18 45 61 34 59 62 28 41 -0.06 51 0 0 61 29 37 12 17 10.7 1 139 30 61 12 32 61 46 46 61 2 38 61 56 48 -0.33 52 0 0 60 56 26 12 17 10.9 2 140 29 60 39 12 61 13 44 60 29 13 61 23 51 -0.43 53 0 0 60 22 9 12 17 11.2 3 141 29 60 4 48 60 39 36 59 54 44 60 49 48 -0.48 54 0 0 59 46 47 12 17 11.6 4 142 29 59 29 17 60 4 22 59 19 8 60 14 38 -0.50 55 0 0 59 10 16 12 17 12.2 4 143 29 58 52 38 59 27 59 58 42 25 59 38 21 -0.52 56 0 0 58 32 36 12 17 12.8 5 144 28 58 14 51 58 50 28 58 4 33 59 0 54 -0.54 57 0 0 57 53 47 12 17 13.6 6 145 28 57 35 53 58 11 46 57 25 31 58 22 16 -0.55 58 0 0 57 13 46 12 17 14.5 7 146 28 56 55 45 57 31 52 56 45 19 57 42 27 -0.55 59 0 0 56 32 34 12 17 15.6 8 146 27 56 14 26 56 50 47 56 3 56 57 1 26 -0.56 60 0 0 55 50 9 12 17 16.8 9 147 27 55 31 55 56 8 30 55 21 21 56 19 13 -0.57 61 0 0 55 6 32 12 17 18.2 10 148 27 54 48 12 55 24 59 54 37 34 55 35 46 -0.57 62 0 0 54 21 42 12 17 19.8 11 149 26 54 3 16 54 40 15 53 52 34 54 51 5 -0.57 63 0 0 53 35 39 12 17 21.6 12 150 26 53 17 7 53 54 17 53 6 23 54 5 11 -0.58 64 0 0 52 48 23 12 17 23.5 13 151 25 52 29 46 53 7 6 52 18 59 53 18 3 -0.58 65 0 0 51 59 55 12 17 25.7 14 151 25 51 41 13 52 18 43 51 30 24 52 29 42 -0.58 66 0 0 51 10 15 12 17 28.1 15 152 24 50 51 29 51 29 7 50 40 37 51 40 8 -0.58 67 0 0 50 19 24 12 17 30.8 16 153 24 50 0 35 50 38 20 49 49 41 50 49 23 -0.58 68 0 0 49 27 24 12 17 33.6 17 154 23 49 8 32 49 46 22 48 57 36 49 57 28 -0.59 69 0 0 48 34 16 12 17 36.7 18 155 23 48 15 21 48 53 16 48 4 24 49 4 23 -0.59 70 0 0 47 40 1 12 17 40.1 19 156 22 47 21 5 47 59 4 47 10 7 48 10 12 -0.59 71 0 0 46 44 43 12 17 43.8 20 156 21 46 25 45 47 3 46 46 14 47 47 14 55 -0.59 72 0 0 45 48 22 12 17 47.7 21 157 21 45 29 24 46 7 26 45 18 25 46 18 35 -0.59 73 0 0 44 51 2 12 17 51.9 22 158 20 44 32 5 45 10 7 44 21 5 45 21 16 -0.59 74 0 0 43 52 46 12 17 56.4 24 159 19 43 33 49 44 11 50 43 22 50 44 22 59 -0.59 75 0 0 42 53 37 12 18 1.2 25 160 18 42 34 41 43 12 40 42 23 43 43 23 47 -0.59 76 0 0 41 53 38 12 18 6.3 26 161 18 41 34 44 42 12 39 41 23 47 42 23 46 -0.59 77 0 0 40 52 54 12 18 11.7 27 162 17 40 34 2 41 11 52 40 23 6 41 22 57 -0.60 78 0 0 39 51 27 12 18 17.3 28 162 16 39 32 39 40 10 22 39 21 45 40 21 26 -0.60 79 0 0 38 49 23 12 18 23.3 30 163 15 38 30 38 39 8 14 38 19 46 39 19 15 -0.60 80 0 0 37 46 44 12 18 29.6 31 164 14 37 28 3 38 5 32 37 17 14 38 16 30 -0.60 81 0 0 36 43 37 12 18 36.2 32 165 13 36 25 0 37 2 19 36 14 13 37 13 15 -0.60 82 0 0 35 40 4 12 18 43.1 33 166 12 35 21 32 35 58 41 35 10 48 36 9 34 -0.60 83 0 0 34 36 11 12 18 50.3 34 167 11 34 17 46 34 54 43 34 7 5 35 5 32 -0.60 84 0 0 33 32 3 12 18 57.8 36 168 10 33 13 44 33 50 29 33 3 7 34 1 15 -0.60 85 0 0 32 27 45 12 19 5.6 37 169 9 32 9 32 32 46 4 31 58 58 32 56 46 -0.60 86 0 0 31 23 21 12 19 13.6 38 170 8 31 5 15 31 41 33 30 54 45 31 52 10 -0.60 87 0 0 30 18 55 12 19 21.9 39 171 7 30 0 57 30 37 0 29 50 31 30 47 33 -0.61 88 0 0 29 14 34 12 19 30.4 40 172 6 28 56 42 29 32 30 28 46 21 29 42 59 -0.61 89 0 0 28 10 20 12 19 39.2 42 174 5 27 52 37 28 28 9 27 42 20 28 38 33 -0.61 90 0 0 27 6 20 12 19 48.2 43 175 3 26 48 45 27 24 0 26 38 33 27 34 19 -0.61 91 0 0 26 2 36 12 19 57.4 44 176 2 25 45 9 26 20 8 25 35 3 26 30 23 -0.61 92 0 0 24 59 14 12 20 6.9 45 177 1 24 41 56 25 16 37 24 31 54 25 26 47 -0.61 93 0 0 23 56 17 12 20 16.5 46 179 0 23 39 8 24 13 32 23 29 11 24 23 36 -0.61 94 0 0 22 53 50 12 20 26.2 47 180 -1 22 36 50 23 10 56 22 26 58 23 20 54 -0.61 95 0 0 21 51 56 12 20 36.2 48 182 -3 21 35 5 22 8 52 21 25 18 22 18 46 -0.61 96 0 0 20 50 39 12 20 46.2 49 183 -4 20 33 57 21 7 26 20 24 15 21 17 14 -0.62 97 0 0 19 50 2 12 20 56.4 50 185 -5 19 33 29 20 6 39 19 23 53 20 16 22 -0.62 98 0 0 18 50 8 12 21 6.7 51 186 -6 18 33 44 19 6 36 18 24 13 19 16 13 -0.62 99 0 0 17 51 0 12 21 17.1 52 188 -8 17 34 46 18 7 19 17 25 20 18 16 50 -0.62 100 0 0 16 52 42 12 21 27.6 53 190 -9 16 36 36 17 8 51 16 27 16 17 18 17 -0.62 101 0 0 15 55 14 12 21 38.1 53 192 -10 15 39 18 16 11 14 15 30 4 16 20 35 -0.62 102 0 0 14 58 41 12 21 48.7 54 194 -11 14 42 54 15 14 32 14 33 45 15 23 47 -0.62 103 0 0 14 3 3 12 21 59.4 55 196 -13 13 47 26 14 18 45 13 38 22 14 27 54 -0.62 104 0 0 13 8 24 12 22 10.0 55 198 -14 12 52 55 13 23 56 12 43 56 13 33 0 -0.62 105 0 0 12 14 43 12 22 20.6 56 200 -15 11 59 23 12 30 6 11 50 29 12 39 5 -0.63 106 0 0 11 22 3 12 22 31.3 56 202 -16 11 6 52 11 37 18 10 58 4 11 46 11 -0.63 107 0 0 10 30 26 12 22 41.9 57 204 -18 10 15 24 10 45 31 10 6 40 10 54 20 -0.63 108 0 0 9 39 52 12 22 52.5 57 206 -19 9 24 58 9 54 49 9 16 20 10 3 32 -0.63 109 0 0 8 50 22 12 23 3.1 57 208 -20 8 35 37 9 5 10 8 27 3 9 13 49 -0.63 110 0 0 8 1 57 12 23 13.6 57 210 -21 7 47 20 8 16 37 7 38 52 8 25 11 -0.63 111 0 0 7 14 38 12 23 24.0 58 213 -23 7 0 10 7 29 10 6 51 46 7 37 39 -0.63 112 0 0 6 28 26 12 23 34.4 58 215 -24 6 14 5 6 42 49 6 5 46 6 51 13 -0.63 113 0 0 5 43 20 12 23 44.7 58 217 -25 5 29 7 5 57 36 5 20 52 6 5 55 -0.63 114 0 0 4 59 21 12 23 54.9 58 219 -26 4 45 16 5 13 29 4 37 5 5 21 44 -0.63 115 0 0 4 16 30 12 24 5.1 57 221 -27 4 2 32 4 30 30 3 54 26 4 38 40 -0.64 116 0 0 3 34 45 12 24 15.1 57 223 -29 3 20 55 3 48 38 3 12 53 3 56 44 -0.64 117 0 0 2 54 8 12 24 25.0 57 225 -30 2 40 25 3 7 54 2 32 27 3 15 56 -0.64 118 0 0 2 14 39 12 24 34.9 57 227 -31 2 1 2 2 28 18 1 53 8 2 36 15 -0.64 119 0 0 1 36 16 12 24 44.6 56 229 -32 1 22 46 1 49 48 1 14 56 1 57 42 -0.64 120 0 0 0 59 0 12 24 54.2 56 230 -33 0 45 37 1 12 26 0 37 51 1 20 16 -0.64 121 0 0 0 22 51 12 25 3.7 56 232 -35 0 9 34 0 36 10 0 1 51 0 43 56 -0.64 122 0 0 - 0 12 12 12 25 13.0 55 234 -36 - 0 25 23 0 1 0 - 0 33 2 0 8 43 -0.64 123 0 0 - 0 46 10 12 25 22.2 55 235 -37 - 0 59 14 - 0 33 3 - 1 6 50 - 0 25 24 -0.64 124 0 0 - 1 19 2 12 25 31.3 54 236 -38 - 1 32 1 - 1 6 0 - 1 39 33 - 0 58 25 -0.64 125 0 0 - 1 50 49 12 25 40.3 53 238 -39 - 2 3 42 - 1 37 53 - 2 11 11 - 1 30 21 -0.64 126 0 0 - 2 21 31 12 25 49.1 53 239 -40 - 2 34 19 - 2 8 41 - 2 41 45 - 2 1 12 -0.64 127 0 0 - 2 51 10 12 25 57.8 52 240 -41 - 3 3 53 - 2 38 25 - 3 11 15 - 2 30 59 -0.64 128 0 0 - 3 19 45 12 26 6.3 52 241 -43 - 3 32 23 - 3 7 5 - 3 39 43 - 2 59 42 -0.64 129 0 0 - 3 47 17 12 26 14.7 51 242 -44 - 3 59 50 - 3 34 42 - 4 7 7 - 3 27 22 -0.64 130 0 0 - 4 13 47 12 26 22.9 50 243 -45 - 4 26 15 - 4 1 17 - 4 33 30 - 3 53 59 -0.64 131 0 0 - 4 39 15 12 26 31.1 49 244 -46 - 4 51 38 - 4 26 49 - 4 58 50 - 4 19 34 -0.64 132 0 0 - 5 3 41 12 26 39.0 49 245 -47 - 5 16 1 - 4 51 20 - 5 23 10 - 4 44 8 -0.65 133 0 0 - 5 27 8 12 26 46.9 48 246 -48 - 5 39 23 - 5 14 50 - 5 46 30 - 5 7 41 -0.65 134 0 0 - 5 49 33 12 26 54.5 47 247 -49 - 6 1 45 - 5 37 20 - 6 8 50 - 5 30 13 -0.65 135 0 0 - 6 11 0 12 27 2.1 46 247 -50 - 6 23 7 - 5 58 50 - 6 30 10 - 5 51 45 -0.65 136 0 0 - 6 31 27 12 27 9.5 45 248 -51 - 6 43 31 - 6 19 21 - 6 50 31 - 6 12 18 -0.65 137 0 0 - 6 50 55 12 27 16.7 45 248 -52 - 7 2 56 - 6 38 53 - 7 9 54 - 6 31 52 -0.65 138 0 0 - 7 9 26 12 27 23.8 44 249 -54 - 7 21 23 - 6 57 27 - 7 28 20 - 6 50 28 -0.65 139 0 0 - 7 26 59 12 27 30.7 43 249 -55 - 7 38 53 - 7 15 3 - 7 45 48 - 7 8 6 -0.65 140 0 0 - 7 43 35 12 27 37.5 42 250 -56 - 7 55 26 - 7 31 42 - 8 2 19 - 7 24 46 -0.65 141 0 0 - 7 59 14 12 27 44.2 41 250 -57 - 8 11 2 - 7 47 24 - 8 17 54 - 7 40 30 -0.65 142 0 0 - 8 13 57 12 27 50.7 40 251 -58 - 8 25 43 - 8 2 9 - 8 32 33 - 7 55 17 -0.65 143 0 0 - 8 27 44 12 27 57.1 39 251 -59 - 8 39 28 - 8 15 59 - 8 46 16 - 8 9 8 -0.65 144 0 0 - 8 40 37 12 28 3.3 39 251 -60 - 8 52 18 - 8 28 54 - 8 59 5 - 8 22 4 -0.65 145 0 0 - 8 52 34 12 28 9.4 38 251 -61 - 9 4 13 - 8 40 53 - 9 10 59 - 8 34 5 -0.65 146 0 0 - 9 3 37 12 28 15.3 37 252 -62 - 9 15 14 - 8 51 58 - 9 21 59 - 8 45 11 -0.65 147 0 0 - 9 13 46 12 28 21.1 36 252 -63 - 9 25 21 - 9 2 9 - 9 32 5 - 8 55 23 -0.65 148 0 0 - 9 23 1 12 28 26.8 35 252 -64 - 9 34 34 - 9 11 26 - 9 41 17 - 9 4 41 -0.65 149 0 0 - 9 31 22 12 28 32.3 34 252 -65 - 9 42 54 - 9 19 49 - 9 49 36 - 9 13 5 -0.65 150 0 0 - 9 38 51 12 28 37.6 33 252 -66 - 9 50 21 - 9 27 19 - 9 57 2 - 9 20 35 -0.65 151 0 0 - 9 45 26 12 28 42.8 32 252 -67 - 9 56 56 - 9 33 55 -10 3 36 - 9 27 13 -0.65 152 0 0 - 9 51 9 12 28 47.9 31 252 -68 -10 2 37 - 9 39 39 -10 9 17 - 9 32 57 -0.65 153 0 0 - 9 56 0 12 28 52.8 30 252 -69 -10 7 27 - 9 44 31 -10 14 6 - 9 37 50 -0.65 154 0 0 - 9 59 58 12 28 57.6 29 252 -70 -10 11 25 - 9 48 30 -10 18 4 - 9 41 49 -0.65 155 0 0 -10 3 5 12 29 2.2 28 253 -71 -10 14 31 - 9 51 38 -10 21 9 - 9 44 57 -0.65 156 0 0 -10 5 20 12 29 6.7 27 253 -72 -10 16 45 - 9 53 53 -10 23 23 - 9 47 12 -0.65 157 0 0 -10 6 43 12 29 11.0 26 253 -73 -10 18 8 - 9 55 16 -10 24 46 - 9 48 36 -0.64 158 0 0 -10 7 14 12 29 15.2 26 252 -74 -10 18 39 - 9 55 48 -10 25 17 - 9 49 8 -0.64 159 0 0 -10 6 55 12 29 19.3 25 252 -75 -10 18 19 - 9 55 28 -10 24 57 - 9 48 49 -0.64 160 0 0 -10 5 43 12 29 23.2 24 252 -76 -10 17 8 - 9 54 17 -10 23 46 - 9 47 37 -0.64 161 0 0 -10 3 41 12 29 26.9 23 252 -77 -10 15 6 - 9 52 15 -10 21 44 - 9 45 35 -0.64 162 0 0 -10 0 48 12 29 30.5 22 252 -77 -10 12 13 - 9 49 21 -10 18 51 - 9 42 41 -0.64 163 0 0 - 9 57 3 12 29 34.0 21 252 -78 -10 8 29 - 9 45 36 -10 15 7 - 9 38 55 -0.64 164 0 0 - 9 52 27 12 29 37.3 20 252 -79 -10 3 53 - 9 41 0 -10 10 32 - 9 34 19 -0.64 165 0 0 - 9 47 0 12 29 40.5 19 252 -80 - 9 58 27 - 9 35 32 -10 5 6 - 9 28 50 -0.64 166 0 0 - 9 40 42 12 29 43.5 18 252 -81 - 9 52 10 - 9 29 13 - 9 58 49 - 9 22 31 -0.64 167 0 0 - 9 33 32 12 29 46.3 17 252 -82 - 9 45 1 - 9 22 2 - 9 51 41 - 9 15 20 -0.64 168 0 0 - 9 25 31 12 29 49.0 16 252 -82 - 9 37 1 - 9 14 0 - 9 43 42 - 9 7 17 -0.64 169 0 0 - 9 16 39 12 29 51.6 15 252 -83 - 9 28 10 - 9 5 6 - 9 34 52 - 8 58 22 -0.65 170 0 0 - 9 6 55 12 29 54.0 14 251 -83 - 9 18 28 - 8 55 21 - 9 25 10 - 8 48 36 -0.65 171 0 0 - 8 56 19 12 29 56.2 13 251 -84 - 9 7 53 - 8 44 43 - 9 14 37 - 8 37 58 -0.65 172 0 0 - 8 44 52 12 29 58.3 12 251 -84 - 8 56 28 - 8 33 14 - 9 3 12 - 8 26 28 -0.65 173 0 0 - 8 32 32 12 30 0.2 11 251 -84 - 8 44 10 - 8 20 53 - 8 50 55 - 8 14 5 -0.65 174 0 0 - 8 19 20 12 30 1.9 10 251 -84 - 8 31 0 - 8 7 39 - 8 37 47 - 8 0 50 -0.65 175 0 0 - 8 5 16 12 30 3.5 9 251 -83 - 8 16 58 - 7 53 33 - 8 23 46 - 7 46 43 -0.65 176 0 0 - 7 50 20 12 30 4.9 8 251 -83 - 8 2 4 - 7 38 34 - 8 8 53 - 7 31 43 -0.65 177 0 0 - 7 34 30 12 30 6.1 7 251 -82 - 7 46 17 - 7 22 42 - 7 53 7 - 7 15 50 -0.66 178 0 0 - 7 17 48 12 30 7.2 6 250 -81 - 7 29 37 - 7 5 57 - 7 36 29 - 6 59 3 -0.66 179 0 0 - 7 0 12 12 30 8.1 5 250 -81 - 7 12 4 - 6 48 19 - 7 18 57 - 6 41 23 -0.67 180 0 0 - 6 41 43 12 30 8.8 4 250 -80 - 6 53 37 - 6 29 47 - 7 0 32 - 6 22 50 -0.68 -179 0 0 - 6 22 20 12 30 9.4 3 250 -79 - 6 34 18 - 6 10 21 - 6 41 14 - 6 3 22 -0.71 -178 0 0 - 6 2 3 12 30 9.7 2 250 -78 - 6 14 4 - 5 50 1 - 6 21 2 - 5 43 0 -0.76 -177 0 0 - 5 40 53 12 30 9.9 0 250 -77 - 5 52 56 - 5 28 47 - 5 59 56 - 5 21 44 -1.07 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: TYC 6208-00028-1 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 16 00 17.4973 DE: -19 58 31.856 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 16 00 17.4971 DE: -19 58 31.856 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 10.6 * B mag [mag]: 11.3 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3089) Oujianquan asteroid class: approx. diameter [km]: 35 approx. diameter ["]: 0.025 distance from Earth [AU]: 1.96200 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", 0.006", 118.794° remarks: * orbital elements for (3089)Oujianquan : Mean anomaly = 356.1551971926 deg Arg. of pericenter = 183.9588989042 deg Long. of node = 88.1989139465 deg Inclination = 16.6940134775 deg Eccentricity = 0.1854791455 Semimajor axis = 2.9311654292 AU Perihelion dist = 2.3874953702 AU Mag: H = 11.36, G = 0.15 Epoch of elements : MJD 60534.51643016 TDT (2024 Aug 12.5164) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542023Apr24,2.58,2024,8,12,12.394332,0.330813,0.420502,6.123225,-4.816022,0.005203,-0.001051,0.000000,0.000000 93.0706,-20.0458,-4.67,14.72,False TYC 6208-00028-1,16.00486037,-19.9755157,11.30,10.60,10.22,0.1,0,,16.02878659,-20.0457629,5.26,5.19,0,0,0 3089,Oujianquan,15.85,35.608,1.9620,0,0,1.949,-21.58,,2.4,0 0,356.0538,2024,8,12,183.9589,88.1989,16.6940,0.18548,2.93117,2.38750,11.36,5.0,0.15 1.291,0.0260,0.0060,119,0.0073,Known errors,1.05,0,-1,-1 20240812_0028-1,60140.24 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 05:49 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org