IOTA/IOTA-ES occultation update for (5017) Tenchi / UCAC4 352-183924 event on 2024 Nov 20, 18:10 UT Visible from Summary ------- On 2024 Nov 20 UT, the 22.797 km diameter asteroid (5017) Tenchi will occult a 10.6 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.65 mag to 18.26 mag (the magnitude of the asteroid) for at most 0.890 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 Nov 20, 18:07 - 2024 Nov 20, 18:13 * geocentric midpoint of event [JD]: 2460635.25729208 * magnitude of target star: 10.61 * magnitude drop [mag]: 7.65 * estimated maximum duration [s]: 0.890 * Moon: 72 % sunlit, 172° distance * Sun: 72° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 33 * 1 sigma uncertainty interval [path widths]: +/- 0.31 * 1 sigma uncertainty interval [seconds]: +/- 1.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.019, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.001", 91°) * approx speed of asteroid's shadow [km/s]: 25.5243 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 352-183924 by 5017 Tenchi on 2024 Nov 20 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 - 93 0 0 36 22 49 18 7 36.3 0 115 34 36 13 5 36 32 34 36 7 6 36 38 37 .... - 92 0 0 36 0 48 18 7 36.4 1 115 34 35 51 6 36 10 32 35 45 8 36 16 34 -0.45 - 91 0 0 35 39 2 18 7 36.5 2 116 34 35 29 21 35 48 44 35 23 23 35 54 45 -0.71 - 90 0 0 35 17 30 18 7 36.7 3 116 35 35 7 51 35 27 11 35 1 54 35 33 11 -0.80 - 89 0 0 34 56 13 18 7 37.1 4 117 35 34 46 36 35 5 53 34 40 40 35 11 52 -0.86 - 88 0 0 34 35 13 18 7 37.5 5 118 35 34 25 37 34 44 50 34 19 41 34 50 49 -0.89 - 87 0 0 34 14 28 18 7 38.0 6 118 35 34 4 54 34 24 5 33 59 0 34 30 2 -0.91 - 86 0 0 33 54 1 18 7 38.6 6 119 36 33 44 28 34 3 36 33 38 35 34 9 33 -0.93 - 85 0 0 33 33 52 18 7 39.2 7 119 36 33 24 20 33 43 25 33 18 28 33 49 21 -0.94 - 84 0 0 33 14 1 18 7 40.0 8 120 36 33 4 30 33 23 33 32 58 39 33 29 27 -0.95 - 83 0 0 32 54 28 18 7 40.9 9 120 36 32 44 59 33 3 59 32 39 9 33 9 53 -0.96 - 82 0 0 32 35 15 18 7 41.8 10 121 36 32 25 48 32 44 44 32 19 58 32 50 37 -0.97 - 81 0 0 32 16 22 18 7 42.8 11 122 36 32 6 56 32 25 50 32 1 7 32 31 42 -0.97 - 80 0 0 31 57 49 18 7 43.9 12 122 36 31 48 25 32 7 16 31 42 36 32 13 6 -0.98 - 79 0 0 31 39 37 18 7 45.2 13 123 36 31 30 14 31 49 2 31 24 26 31 54 52 -0.98 - 78 0 0 31 21 46 18 7 46.4 14 123 36 31 12 24 31 31 10 31 6 38 31 36 59 -0.98 - 77 0 0 31 4 17 18 7 47.8 14 124 36 30 54 57 31 13 40 30 49 11 31 19 28 -0.99 - 76 0 0 30 47 11 18 7 49.3 15 124 36 30 37 51 30 56 32 30 32 6 31 2 19 -0.99 - 75 0 0 30 30 27 18 7 50.8 16 125 36 30 21 8 30 39 46 30 15 24 30 45 33 -0.99 - 74 0 0 30 14 5 18 7 52.5 17 126 36 30 4 49 30 23 24 29 59 5 30 29 10 -1.00 - 73 0 0 29 58 8 18 7 54.2 18 126 36 29 48 52 30 7 25 29 43 10 30 13 10 -1.00 - 72 0 0 29 42 34 18 7 56.0 19 127 36 29 33 20 29 51 50 29 27 38 29 57 35 -1.00 - 71 0 0 29 27 25 18 7 57.9 20 127 35 29 18 12 29 36 40 29 12 30 29 42 23 -1.00 - 70 0 0 29 12 40 18 7 59.8 20 128 35 29 3 28 29 21 53 28 57 47 29 27 36 -1.00 - 69 0 0 28 58 20 18 8 1.9 21 129 35 28 49 9 29 7 32 28 43 29 29 13 15 -1.01 - 68 0 0 28 44 25 18 8 4.0 22 129 35 28 35 16 28 53 37 28 29 36 28 59 18 -1.01 - 67 0 0 28 30 56 18 8 6.2 23 130 34 28 21 48 28 40 6 28 16 9 28 45 47 -1.01 - 66 0 0 28 17 53 18 8 8.5 24 131 34 28 8 46 28 27 2 28 3 8 28 32 43 -1.01 - 65 0 0 28 5 16 18 8 10.8 25 131 34 27 56 10 28 14 25 27 50 33 28 20 4 -1.01 - 64 0 0 27 53 6 18 8 13.3 25 132 33 27 44 0 28 2 13 27 38 24 28 7 52 -1.01 - 63 0 0 27 41 23 18 8 15.8 26 133 33 27 32 18 27 50 29 27 26 42 27 56 7 -1.01 - 62 0 0 27 30 6 18 8 18.3 27 133 33 27 21 3 27 39 12 27 15 27 27 44 50 -1.01 - 61 0 0 27 19 17 18 8 21.0 28 134 32 27 10 14 27 28 22 27 4 39 27 33 59 -1.02 - 60 0 0 27 8 56 18 8 23.7 29 135 32 26 59 54 27 17 59 26 54 19 27 23 36 -1.02 - 59 0 0 26 59 2 18 8 26.5 29 136 31 26 50 1 27 8 5 26 44 27 27 13 41 -1.02 - 58 0 0 26 49 36 18 8 29.3 30 136 31 26 40 36 26 58 38 26 35 2 27 4 14 -1.02 - 57 0 0 26 40 39 18 8 32.2 31 137 30 26 31 39 26 49 40 26 26 6 26 55 15 -1.02 - 56 0 0 26 32 9 18 8 35.2 31 138 30 26 23 10 26 41 10 26 17 38 26 46 45 -1.02 - 55 0 0 26 24 9 18 8 38.2 32 139 29 26 15 10 26 33 9 26 9 38 26 38 43 -1.02 - 54 0 0 26 16 37 18 8 41.3 33 140 29 26 7 39 26 25 36 26 2 7 26 31 10 -1.02 - 53 0 0 26 9 34 18 8 44.5 34 140 28 26 0 36 26 18 32 25 55 5 26 24 6 -1.02 - 52 0 0 26 2 59 18 8 47.7 34 141 28 25 54 3 26 11 58 25 48 32 26 17 31 -1.02 - 51 0 0 25 56 55 18 8 51.0 35 142 27 25 47 58 26 5 52 25 42 28 26 11 25 -1.02 - 50 0 0 25 51 19 18 8 54.3 35 143 26 25 42 23 26 0 16 25 36 53 26 5 49 -1.02 - 49 0 0 25 46 13 18 8 57.6 36 144 26 25 37 17 25 55 10 25 31 47 26 0 42 -1.03 - 48 0 0 25 41 36 18 9 1.1 37 145 25 25 32 41 25 50 33 25 27 11 25 56 5 -1.03 - 47 0 0 25 37 29 18 9 4.5 37 146 24 25 28 34 25 46 25 25 23 5 25 51 57 -1.03 - 46 0 0 25 33 52 18 9 8.0 38 147 24 25 24 57 25 42 48 25 19 28 25 48 20 -1.03 - 45 0 0 25 30 44 18 9 11.6 38 148 23 25 21 50 25 39 40 25 16 21 25 45 12 -1.03 - 44 0 0 25 28 7 18 9 15.2 39 149 22 25 19 13 25 37 2 25 13 43 25 42 34 -1.03 - 43 0 0 25 25 59 18 9 18.8 39 150 22 25 17 5 25 34 54 25 11 36 25 40 26 -1.03 - 42 0 0 25 24 22 18 9 22.5 40 151 21 25 15 28 25 33 17 25 9 59 25 38 48 -1.03 - 41 0 0 25 23 14 18 9 26.2 40 152 20 25 14 20 25 32 9 25 8 51 25 37 40 -1.03 - 40 0 0 25 22 36 18 9 29.9 41 153 19 25 13 43 25 31 31 25 8 14 25 37 3 -1.03 - 39 0 0 25 22 29 18 9 33.7 41 154 19 25 13 35 25 31 24 25 8 6 25 36 55 -1.03 - 38 0 0 25 22 51 18 9 37.5 41 156 18 25 13 58 25 31 46 25 8 29 25 37 18 -1.03 - 37 0 0 25 23 44 18 9 41.3 42 157 17 25 14 50 25 32 39 25 9 21 25 38 11 -1.03 - 36 0 0 25 25 7 18 9 45.2 42 158 16 25 16 13 25 34 2 25 10 44 25 39 34 -1.03 - 35 0 0 25 27 0 18 9 49.1 42 159 15 25 18 6 25 35 55 25 12 36 25 41 27 -1.03 - 34 0 0 25 29 23 18 9 53.0 43 161 15 25 20 28 25 38 18 25 14 59 25 43 50 -1.03 - 33 0 0 25 32 15 18 9 56.9 43 162 14 25 23 21 25 41 11 25 17 51 25 46 43 -1.03 - 32 0 0 25 35 38 18 10 0.9 43 163 13 25 26 43 25 44 35 25 21 14 25 50 7 -1.03 - 31 0 0 25 39 31 18 10 4.8 43 164 12 25 30 36 25 48 28 25 25 6 25 54 0 -1.03 - 30 0 0 25 43 54 18 10 8.8 44 166 11 25 34 58 25 52 51 25 29 28 25 58 23 -1.03 - 29 0 0 25 48 46 18 10 12.8 44 167 10 25 39 50 25 57 44 25 34 20 26 3 17 -1.03 - 28 0 0 25 54 8 18 10 16.8 44 168 10 25 45 12 26 3 6 25 39 41 26 8 40 -1.03 - 27 0 0 26 0 0 18 10 20.8 44 170 9 25 51 3 26 8 59 25 45 32 26 14 32 -1.04 - 26 0 0 26 6 21 18 10 24.8 44 171 8 25 57 24 26 15 20 25 51 52 26 20 54 -1.04 - 25 0 0 26 13 12 18 10 28.8 44 172 7 26 4 14 26 22 12 25 58 42 26 27 46 -1.04 - 24 0 0 26 20 32 18 10 32.8 44 174 6 26 11 33 26 29 32 26 6 1 26 35 7 -1.04 - 23 0 0 26 28 21 18 10 36.9 44 175 5 26 19 22 26 37 22 26 13 49 26 42 57 -1.04 - 22 0 0 26 36 39 18 10 40.9 44 176 4 26 27 39 26 45 41 26 22 6 26 51 16 -1.04 - 21 0 0 26 45 26 18 10 44.9 44 178 4 26 36 25 26 54 29 26 30 52 27 0 5 -1.04 - 20 0 0 26 54 42 18 10 48.9 44 179 3 26 45 40 27 3 45 26 40 6 27 9 21 -1.04 - 19 0 0 27 4 26 18 10 52.8 44 180 2 26 55 23 27 13 30 26 49 49 27 19 7 -1.04 - 18 0 0 27 14 38 18 10 56.8 43 182 1 27 5 35 27 23 43 27 0 0 27 29 20 -1.04 - 17 0 0 27 25 18 18 11 0.8 43 183 0 27 16 14 27 34 24 27 10 39 27 40 2 -1.04 - 16 0 0 27 36 27 18 11 4.7 43 184 -1 27 27 22 27 45 33 27 21 45 27 51 12 -1.04 - 15 0 0 27 48 3 18 11 8.6 43 185 -2 27 38 57 27 57 10 27 33 20 28 2 50 -1.04 - 14 0 0 28 0 6 18 11 12.5 42 187 -3 27 50 59 28 9 15 27 45 21 28 14 55 -1.04 - 13 0 0 28 12 36 18 11 16.4 42 188 -4 28 3 28 28 21 46 27 57 50 28 27 27 -1.04 - 12 0 0 28 25 34 18 11 20.3 42 189 -5 28 16 24 28 34 45 28 10 46 28 40 26 -1.04 - 11 0 0 28 38 58 18 11 24.1 41 191 -6 28 29 47 28 48 10 28 24 8 28 53 51 -1.04 - 10 0 0 28 52 48 18 11 27.9 41 192 -6 28 43 36 29 2 1 28 37 56 29 7 43 -1.04 - 9 0 0 29 7 4 18 11 31.7 40 193 -7 28 57 51 29 16 18 28 52 10 29 22 1 -1.04 - 8 0 0 29 21 45 18 11 35.4 40 194 -8 29 12 32 29 31 1 29 6 50 29 36 45 -1.04 - 7 0 0 29 36 52 18 11 39.1 40 195 -9 29 27 37 29 46 9 29 21 55 29 51 54 -1.04 - 6 0 0 29 52 24 18 11 42.7 39 196 -10 29 43 8 30 1 42 29 37 25 30 7 28 -1.04 - 5 0 0 30 8 21 18 11 46.3 39 198 -11 29 59 3 30 17 40 29 53 19 30 23 26 -1.04 - 4 0 0 30 24 41 18 11 49.9 38 199 -12 30 15 23 30 34 2 30 9 38 30 39 49 -1.04 - 3 0 0 30 41 26 18 11 53.4 37 200 -13 30 32 6 30 50 48 30 26 20 30 56 36 -1.04 - 2 0 0 30 58 34 18 11 56.9 37 201 -14 30 49 12 31 7 57 30 43 26 31 13 46 -1.04 - 1 0 0 31 16 4 18 12 0.3 36 202 -15 31 6 42 31 25 29 31 0 54 31 31 19 -1.04 0 0 0 31 33 57 18 12 3.7 36 203 -16 31 24 33 31 43 23 31 18 45 31 49 14 -1.04 1 0 0 31 52 13 18 12 7.0 35 204 -17 31 42 47 32 1 40 31 36 58 32 7 31 -1.04 2 0 0 32 10 49 18 12 10.3 34 205 -17 32 1 22 32 20 18 31 55 33 32 26 10 -1.04 3 0 0 32 29 47 18 12 13.5 34 206 -18 32 20 18 32 39 17 32 14 28 32 45 10 -1.04 4 0 0 32 49 5 18 12 16.7 33 207 -19 32 39 35 32 58 37 32 33 44 33 4 31 -1.04 5 0 0 33 8 43 18 12 19.8 32 208 -20 32 59 12 33 18 16 32 53 19 33 24 11 -1.04 6 0 0 33 28 40 18 12 22.8 32 209 -21 33 19 8 33 38 15 33 13 15 33 44 11 -1.04 7 0 0 33 48 57 18 12 25.8 31 210 -22 33 39 23 33 58 33 33 33 28 34 4 30 -1.04 8 0 0 34 9 31 18 12 28.7 30 210 -23 33 59 56 34 19 9 33 54 1 34 25 7 -1.04 9 0 0 34 30 23 18 12 31.5 30 211 -24 34 20 46 34 40 2 34 14 50 34 46 1 -1.04 10 0 0 34 51 33 18 12 34.3 29 212 -25 34 41 54 35 1 13 34 35 57 35 7 13 -1.04 11 0 0 35 12 58 18 12 37.0 28 213 -25 35 3 18 35 22 40 34 57 20 35 28 41 -1.04 12 0 0 35 34 40 18 12 39.6 27 214 -26 35 24 58 35 44 23 35 19 0 35 50 25 -1.04 13 0 0 35 56 37 18 12 42.2 27 215 -27 35 46 53 36 6 21 35 40 54 36 12 24 -1.04 14 0 0 36 18 48 18 12 44.7 26 216 -28 36 9 3 36 28 34 36 3 3 36 34 38 -1.04 15 0 0 36 41 13 18 12 47.1 25 216 -29 36 31 27 36 51 1 36 25 25 36 57 5 -1.04 16 0 0 37 3 51 18 12 49.4 24 217 -30 36 54 4 37 13 41 36 48 2 37 19 46 -1.04 17 0 0 37 26 42 18 12 51.7 23 218 -30 37 16 53 37 36 33 37 10 50 37 42 39 -1.04 18 0 0 37 49 45 18 12 53.8 23 219 -31 37 39 54 37 59 37 37 33 50 38 5 44 -1.04 19 0 0 38 12 58 18 12 55.9 22 219 -32 38 3 6 38 22 52 37 57 2 38 29 0 -1.04 20 0 0 38 36 22 18 12 58.0 21 220 -33 38 26 29 38 46 17 38 20 23 38 52 26 -1.04 21 0 0 38 59 55 18 12 59.9 20 221 -34 38 50 1 39 9 52 38 43 54 39 16 1 -1.04 22 0 0 39 23 37 18 13 1.8 19 222 -34 39 13 41 39 33 35 39 7 34 39 39 46 -1.04 23 0 0 39 47 27 18 13 3.5 19 223 -35 39 37 30 39 57 26 39 31 22 40 3 38 -1.04 24 0 0 40 11 25 18 13 5.2 18 223 -36 40 1 26 40 21 25 39 55 17 40 27 38 -1.04 25 0 0 40 35 29 18 13 6.9 17 224 -37 40 25 29 40 45 31 40 19 19 40 51 44 -1.04 26 0 0 40 59 39 18 13 8.4 16 225 -37 40 49 38 41 9 42 40 43 27 41 15 56 -1.04 27 0 0 41 23 54 18 13 9.9 15 225 -38 41 13 52 41 33 58 41 7 41 41 40 13 -1.04 28 0 0 41 48 13 18 13 11.2 15 226 -39 41 38 10 41 58 19 41 31 58 42 4 34 -1.04 29 0 0 42 12 36 18 13 12.5 14 227 -40 42 2 32 42 22 43 41 56 19 42 28 59 -1.04 30 0 0 42 37 2 18 13 13.8 13 228 -40 42 26 56 42 47 9 42 20 43 42 53 26 -1.04 31 0 0 43 1 29 18 13 14.9 12 228 -41 42 51 23 43 11 38 42 45 9 43 17 55 -1.05 32 0 0 43 25 58 18 13 15.9 11 229 -41 43 15 50 43 36 8 43 9 36 43 42 26 -1.05 33 0 0 43 50 27 18 13 16.9 10 230 -42 43 40 19 44 0 38 43 34 3 44 6 57 -1.05 34 0 0 44 14 56 18 13 17.8 10 231 -43 44 4 46 44 25 8 43 58 31 44 31 27 -1.05 35 0 0 44 39 24 18 13 18.6 9 231 -43 44 29 13 44 49 36 44 22 57 44 55 56 -1.05 36 0 0 45 3 50 18 13 19.4 8 232 -44 44 53 38 45 14 3 44 47 22 45 20 23 -1.05 37 0 0 45 28 13 18 13 20.1 7 233 -44 45 18 1 45 38 27 45 11 44 45 44 48 -1.06 38 0 0 45 52 33 18 13 20.6 6 233 -45 45 42 20 46 2 48 45 36 3 46 9 9 -1.06 39 0 0 46 16 49 18 13 21.2 6 234 -45 46 6 36 46 27 5 46 0 18 46 33 26 -1.06 40 0 0 46 41 0 18 13 21.6 5 235 -46 46 30 47 46 51 17 46 24 28 46 57 38 -1.07 41 0 0 47 5 6 18 13 22.0 4 236 -46 46 54 52 47 15 23 46 48 33 47 21 45 -1.08 42 0 0 47 29 6 18 13 22.3 3 236 -47 47 18 51 47 39 23 47 12 32 47 45 46 -1.09 43 0 0 47 53 0 18 13 22.5 2 237 -47 47 42 44 48 3 17 47 36 25 48 9 40 -1.10 44 0 0 48 16 45 18 13 22.7 2 238 -48 48 6 30 48 27 3 48 0 10 48 33 26 -1.14 45 0 0 48 40 23 18 13 22.8 1 239 -48 48 30 7 48 50 41 48 23 48 48 57 5 -1.23 46 0 0 49 3 52 18 13 22.8 0 239 -48 48 53 36 49 14 11 48 47 16 .. .. .. -2.84 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 352-183924 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 20 53 35.5981 DE: -19 38 07.597 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 20 53 35.5977 DE: -19 38 07.598 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 10.6 * B mag [mag]: 11.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (5017) Tenchi asteroid class: approx. diameter [km]: 23 approx. diameter ["]: 0.010 distance from Earth [AU]: 3.18730 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#53 date of fit: 2023 Apr 25 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): 0.019", 0.001", 91.394° remarks: * orbital elements for (5017)Tenchi : Mean anomaly = 303.1787783222 deg Arg. of pericenter = 252.6616730976 deg Long. of node = 140.8745212938 deg Inclination = 16.1408327787 deg Eccentricity = 0.0789850528 Semimajor axis = 3.1492399696 AU Perihelion dist = 2.9004970843 AU Mag: H = 12.41, G = 0.15 Epoch of elements : MJD 60634.75729183 TDT (2024 Nov 20.7573) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#532023Apr25,0.89,2024,11,20,18.175010,-0.087195,0.713154,14.296808,1.775655,0.005456,0.001490,0.000000,0.000000 -19.1223,-19.5426,-96.18,-19.92,False UCAC4 352-183924,20.89322172,-19.6354435,10.96,10.61,10.42,0.0,0,,20.91674004,-19.5425553,7.65,7.39,0,0,0 5017,Tenchi,18.26,22.797,3.1873,0,0,2.791,4.90,,2.0,0 0,303.0452,2024,11,20,252.6617,140.8745,16.1408,0.07899,3.14924,2.90050,12.40,5.0,0.15 1.309,0.0193,0.0011,91,0.0031,Known errors,1.09,0,-1,-1 20241120_183924,60140.71 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:58 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org