IOTA/IOTA-ES occultation update for (2197) Shanghai / UCAC4 329-142992 event on 2024 Mar 07, 20:10 UT Visible from Summary ------- On 2024 Mar 07 UT, the 22.0065635717562 km diameter asteroid (2197) Shanghai will occult a 11.9 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.94 mag to 17.87 mag (the magnitude of the asteroid) for at most 0.940 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: 2024 Mar 07, 20:07 - 2024 Mar 07, 20:14 * geocentric midpoint of event [JD]: 2460377.34089625 * magnitude of target star: 11.93 * magnitude drop [mag]: 5.94 * estimated maximum duration [s]: 0.940 * Moon: 10 % sunlit, 36° distance * Sun: 72° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 31 * 1 sigma uncertainty interval [path widths]: +/- 0.09 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.001", 90°) * approx speed of asteroid's shadow [km/s]: 23.9163 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 329-142992 by 2197 Shanghai on 2024 Mar 7 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 100 0 0 39 49 45 20 7 43.0 0 122 -40 39 39 43 39 59 49 39 37 49 .. .. .. .... 101 0 0 39 20 31 20 7 43.1 1 123 -40 39 10 30 39 30 33 39 8 37 39 32 28 -0.30 102 0 0 38 51 22 20 7 43.2 2 124 -40 38 41 23 39 1 22 38 39 30 39 3 16 -0.62 103 0 0 38 22 19 20 7 43.4 3 124 -39 38 12 22 38 32 18 38 10 29 38 34 11 -0.73 104 0 0 37 53 23 20 7 43.8 4 125 -39 37 43 27 38 3 20 37 41 35 38 5 13 -0.79 105 0 0 37 24 35 20 7 44.2 5 125 -38 37 14 41 37 34 30 37 12 49 37 36 23 -0.82 106 0 0 36 55 56 20 7 44.7 6 126 -38 36 46 4 37 5 49 36 44 12 37 7 42 -0.85 107 0 0 36 27 27 20 7 45.4 7 127 -37 36 17 37 36 37 18 36 15 45 36 39 11 -0.87 108 0 0 35 59 8 20 7 46.1 7 127 -37 35 49 20 36 8 58 35 47 29 36 10 50 -0.88 109 0 0 35 31 2 20 7 47.0 8 128 -36 35 21 16 35 40 50 35 19 25 35 42 42 -0.89 110 0 0 35 3 9 20 7 47.9 9 128 -36 34 53 25 35 12 55 34 51 34 35 14 46 -0.90 111 0 0 34 35 29 20 7 48.9 10 129 -35 34 25 47 34 45 13 34 23 57 34 47 4 -0.90 112 0 0 34 8 4 20 7 50.1 11 130 -34 33 58 24 34 17 46 33 56 34 34 19 37 -0.91 113 0 0 33 40 55 20 7 51.3 12 130 -34 33 31 16 33 50 35 33 29 27 33 52 25 -0.91 114 0 0 33 14 1 20 7 52.7 13 131 -33 33 4 25 33 23 40 33 2 36 33 25 30 -0.92 115 0 0 32 47 26 20 7 54.1 14 131 -32 32 37 51 32 57 2 32 36 2 32 58 51 -0.92 116 0 0 32 21 8 20 7 55.7 15 132 -32 32 11 35 32 30 42 32 9 46 32 32 31 -0.93 117 0 0 31 55 8 20 7 57.3 16 133 -31 31 45 38 32 4 41 31 43 50 32 6 30 -0.93 118 0 0 31 29 29 20 7 59.0 17 133 -30 31 20 0 31 38 59 31 18 12 31 40 48 -0.93 119 0 0 31 4 10 20 8 0.9 18 134 -29 30 54 43 31 13 38 30 52 56 31 15 27 -0.93 120 0 0 30 39 12 20 8 2.8 19 134 -29 30 29 47 30 48 39 30 28 0 30 50 26 -0.94 121 0 0 30 14 36 20 8 4.9 19 135 -28 30 5 13 30 24 1 30 3 26 30 25 48 -0.94 122 0 0 29 50 22 20 8 7.0 20 136 -27 29 41 1 29 59 45 29 39 15 30 1 32 -0.94 123 0 0 29 26 32 20 8 9.2 21 136 -26 29 17 13 29 35 53 29 15 27 29 37 40 -0.94 124 0 0 29 3 6 20 8 11.5 22 137 -26 28 53 48 29 12 25 28 52 3 29 14 11 -0.94 125 0 0 28 40 4 20 8 13.9 23 138 -25 28 30 48 28 49 21 28 29 3 28 51 7 -0.95 126 0 0 28 17 27 20 8 16.4 24 138 -24 28 8 14 28 26 43 28 6 29 28 28 28 -0.95 127 0 0 27 55 16 20 8 19.0 25 139 -23 27 46 4 28 4 30 27 44 20 28 6 15 -0.95 128 0 0 27 33 32 20 8 21.7 26 140 -22 27 24 22 27 42 44 27 22 38 27 44 28 -0.95 129 0 0 27 12 14 20 8 24.5 26 140 -21 27 3 6 27 21 24 27 1 22 27 23 9 -0.95 130 0 0 26 51 24 20 8 27.3 27 141 -21 26 42 17 27 0 32 26 40 34 27 2 16 -0.95 131 0 0 26 31 1 20 8 30.2 28 142 -20 26 21 56 26 40 8 26 20 13 26 41 52 -0.95 132 0 0 26 11 7 20 8 33.2 29 142 -19 26 2 4 26 20 12 26 0 21 26 21 55 -0.96 133 0 0 25 51 42 20 8 36.3 30 143 -18 25 42 40 26 0 45 25 40 57 26 2 28 -0.96 134 0 0 25 32 45 20 8 39.5 31 144 -17 25 23 45 25 41 47 25 22 3 25 43 30 -0.96 135 0 0 25 14 19 20 8 42.7 31 145 -16 25 5 20 25 23 19 25 3 38 25 25 2 -0.96 136 0 0 24 56 23 20 8 46.0 32 146 -15 24 47 26 25 5 21 24 45 44 25 7 3 -0.96 137 0 0 24 38 57 20 8 49.4 33 146 -14 24 30 1 24 47 54 24 28 20 24 49 36 -0.96 138 0 0 24 22 1 20 8 52.8 34 147 -13 24 13 7 24 30 57 24 11 26 24 32 39 -0.96 139 0 0 24 5 37 20 8 56.3 34 148 -12 23 56 45 24 14 31 23 55 4 24 16 13 -0.96 140 0 0 23 49 45 20 8 59.9 35 149 -11 23 40 54 23 58 38 23 39 13 24 0 19 -0.96 141 0 0 23 34 24 20 9 3.6 36 150 -11 23 25 34 23 43 16 23 23 54 23 44 57 -0.96 142 0 0 23 19 36 20 9 7.2 36 151 -10 23 10 47 23 28 26 23 9 7 23 30 7 -0.96 143 0 0 23 5 20 20 9 11.0 37 152 -9 22 56 32 23 14 9 22 54 52 23 15 49 -0.97 144 0 0 22 51 36 20 9 14.8 38 153 -8 22 42 50 23 0 24 22 41 10 23 2 4 -0.97 145 0 0 22 38 26 20 9 18.7 38 154 -7 22 29 41 22 47 12 22 28 1 22 48 52 -0.97 146 0 0 22 25 48 20 9 22.6 39 154 -6 22 17 4 22 34 34 22 15 25 22 36 14 -0.97 147 0 0 22 13 44 20 9 26.5 40 156 -5 22 5 1 22 22 28 22 3 22 22 24 8 -0.97 148 0 0 22 2 13 20 9 30.6 40 157 -4 21 53 31 22 10 57 21 51 52 22 12 36 -0.97 149 0 0 21 51 16 20 9 34.6 41 158 -3 21 42 35 21 59 59 21 40 57 22 1 38 -0.97 150 0 0 21 40 53 20 9 38.7 41 159 -2 21 32 13 21 49 35 21 30 35 21 51 14 -0.97 151 0 0 21 31 5 20 9 42.8 42 160 -1 21 22 25 21 39 45 21 20 47 21 41 24 -0.97 152 0 0 21 21 50 20 9 47.0 42 161 0 21 13 12 21 30 30 21 11 33 21 32 9 -0.97 153 0 0 21 13 10 20 9 51.2 43 162 1 21 4 32 21 21 49 21 2 54 21 23 28 -0.97 154 0 0 21 5 4 20 9 55.4 43 163 2 20 56 27 21 13 43 20 54 49 21 15 21 -0.97 155 0 0 20 57 33 20 9 59.7 43 164 3 20 48 57 21 6 11 20 47 19 21 7 49 -0.97 156 0 0 20 50 37 20 10 4.0 44 166 4 20 42 1 20 59 14 20 40 24 21 0 52 -0.97 157 0 0 20 44 16 20 10 8.3 44 167 5 20 35 40 20 52 52 20 34 3 20 54 30 -0.97 158 0 0 20 38 29 20 10 12.7 44 168 6 20 29 54 20 47 5 20 28 17 20 48 43 -0.97 159 0 0 20 33 18 20 10 17.0 45 169 7 20 24 44 20 41 53 20 23 6 20 43 31 -0.97 160 0 0 20 28 42 20 10 21.4 45 171 8 20 20 8 20 37 17 20 18 30 20 38 55 -0.98 161 0 0 20 24 41 20 10 25.8 45 172 8 20 16 7 20 33 15 20 14 30 20 34 53 -0.98 162 0 0 20 21 15 20 10 30.2 45 173 9 20 12 41 20 29 49 20 11 4 20 31 27 -0.98 163 0 0 20 18 24 20 10 34.6 45 175 10 20 9 51 20 26 58 20 8 14 20 28 36 -0.98 164 0 0 20 16 9 20 10 39.1 45 176 11 20 7 36 20 24 43 20 5 59 20 26 21 -0.98 165 0 0 20 14 29 20 10 43.5 46 177 12 20 5 56 20 23 3 20 4 19 20 24 41 -0.98 166 0 0 20 13 25 20 10 48.0 46 178 13 20 4 52 20 21 58 20 3 15 20 23 36 -0.98 167 0 0 20 12 55 20 10 52.4 46 180 14 20 4 23 20 21 29 20 2 46 20 23 7 -0.98 168 0 0 20 13 2 20 10 56.9 46 181 15 20 4 29 20 21 36 20 2 52 20 23 13 -0.98 169 0 0 20 13 44 20 11 1.3 46 182 16 20 5 11 20 22 17 20 3 34 20 23 55 -0.98 170 0 0 20 15 1 20 11 5.8 46 184 17 20 6 28 20 23 35 20 4 51 20 25 12 -0.98 171 0 0 20 16 53 20 11 10.2 45 185 18 20 8 20 20 25 27 20 6 43 20 27 5 -0.98 172 0 0 20 19 21 20 11 14.6 45 186 19 20 10 48 20 27 55 20 9 11 20 29 33 -0.98 173 0 0 20 22 24 20 11 19.1 45 188 20 20 13 51 20 30 59 20 12 14 20 32 36 -0.98 174 0 0 20 26 2 20 11 23.5 45 189 21 20 17 29 20 34 37 20 15 52 20 36 15 -0.98 175 0 0 20 30 16 20 11 27.8 45 190 22 20 21 42 20 38 51 20 20 5 20 40 29 -0.98 176 0 0 20 35 5 20 11 32.2 44 192 22 20 26 30 20 43 40 20 24 53 20 45 18 -0.98 177 0 0 20 40 29 20 11 36.6 44 193 23 20 31 54 20 49 5 20 30 16 20 50 43 -0.98 178 0 0 20 46 28 20 11 40.9 44 194 24 20 37 52 20 55 4 20 36 15 20 56 42 -0.98 179 0 0 20 53 1 20 11 45.2 43 195 25 20 44 25 21 1 39 20 42 48 21 3 17 -0.98 180 0 0 21 0 10 20 11 49.5 43 196 26 20 51 33 21 8 48 20 49 56 21 10 26 -0.98 -179 0 0 21 7 53 20 11 53.7 43 198 27 20 59 16 21 16 32 20 57 38 21 18 10 -0.98 -178 0 0 21 16 11 20 11 57.9 42 199 28 21 7 33 21 24 51 21 5 55 21 26 29 -0.98 -177 0 0 21 25 4 20 12 2.1 42 200 29 21 16 25 21 33 44 21 14 47 21 35 23 -0.98 -176 0 0 21 34 30 20 12 6.3 41 201 29 21 25 51 21 43 11 21 24 12 21 44 50 -0.98 -175 0 0 21 44 31 20 12 10.4 41 202 30 21 35 51 21 53 13 21 34 12 21 54 52 -0.98 -174 0 0 21 55 6 20 12 14.4 40 203 31 21 46 25 22 3 49 21 44 46 22 5 28 -0.98 -173 0 0 22 6 15 20 12 18.5 40 204 32 21 57 33 22 14 59 21 55 54 22 16 38 -0.98 -172 0 0 22 17 58 20 12 22.5 39 205 33 22 9 14 22 26 42 22 7 35 22 28 22 -0.98 -171 0 0 22 30 14 20 12 26.4 39 206 34 22 21 29 22 38 59 22 19 50 22 40 39 -0.98 -170 0 0 22 43 3 20 12 30.3 38 207 34 22 34 17 22 51 50 22 32 38 22 53 30 -0.98 -169 0 0 22 56 25 20 12 34.1 37 208 35 22 47 38 23 5 13 22 45 59 23 6 54 -0.98 -168 0 0 23 10 20 20 12 37.9 37 209 36 23 1 32 23 19 10 22 59 52 23 20 50 -0.98 -167 0 0 23 24 48 20 12 41.6 36 210 37 23 15 59 23 33 38 23 14 18 23 35 19 -0.98 -166 0 0 23 39 48 20 12 45.3 35 211 37 23 30 57 23 48 39 23 29 17 23 50 20 -0.98 -165 0 0 23 55 19 20 12 48.9 35 212 38 23 46 28 24 4 13 23 44 47 24 5 54 -0.98 -164 0 0 24 11 23 20 12 52.4 34 213 39 24 2 30 24 20 18 24 0 49 24 21 59 -0.98 -163 0 0 24 27 58 20 12 55.9 33 213 39 24 19 4 24 36 54 24 17 22 24 38 36 -0.98 -162 0 0 24 45 4 20 12 59.3 32 214 40 24 36 8 24 54 2 24 34 27 24 55 44 -0.98 -161 0 0 25 2 41 20 13 2.6 32 215 41 24 53 43 25 11 40 24 52 1 25 13 22 -0.98 -160 0 0 25 20 48 20 13 5.9 31 216 41 25 11 49 25 29 48 25 10 7 25 31 31 -0.98 -159 0 0 25 39 25 20 13 9.0 30 217 42 25 30 24 25 48 27 25 28 42 25 50 10 -0.98 -158 0 0 25 58 31 20 13 12.2 29 217 42 25 49 29 26 7 35 25 47 46 26 9 18 -0.98 -157 0 0 26 18 7 20 13 15.2 28 218 43 26 9 3 26 27 12 26 7 20 26 28 56 -0.98 -156 0 0 26 38 11 20 13 18.2 28 219 44 26 29 5 26 47 18 26 27 22 26 49 2 -0.98 -155 0 0 26 58 43 20 13 21.0 27 220 44 26 49 36 27 7 52 26 47 52 27 9 36 -0.98 -154 0 0 27 19 43 20 13 23.8 26 220 45 27 10 34 27 28 54 27 8 50 27 30 39 -0.98 -153 0 0 27 41 11 20 13 26.5 25 221 45 27 32 0 27 50 23 27 30 16 27 52 8 -0.98 -152 0 0 28 3 4 20 13 29.2 24 222 45 27 53 52 28 12 19 27 52 7 28 14 4 -0.98 -151 0 0 28 25 24 20 13 31.7 23 222 46 28 16 10 28 34 40 28 14 25 28 36 26 -0.98 -150 0 0 28 48 10 20 13 34.1 23 223 46 28 38 54 28 57 28 28 37 8 28 59 14 -0.98 -149 0 0 29 11 20 20 13 36.5 22 224 47 29 2 2 29 20 40 29 0 16 29 22 26 -0.98 -148 0 0 29 34 55 20 13 38.8 21 224 47 29 25 35 29 44 16 29 23 49 29 46 3 -0.98 -147 0 0 29 58 53 20 13 40.9 20 225 47 29 49 31 30 8 17 29 47 45 30 10 4 -0.98 -146 0 0 30 23 14 20 13 43.0 19 225 47 30 13 51 30 32 40 30 12 4 30 34 27 -0.98 -145 0 0 30 47 58 20 13 45.0 18 226 48 30 38 33 30 57 25 30 36 45 30 59 13 -0.98 -144 0 0 31 13 3 20 13 46.9 17 227 48 31 3 36 31 22 33 31 1 48 31 24 21 -0.98 -143 0 0 31 38 29 20 13 48.7 16 227 48 31 29 0 31 48 1 31 27 12 31 49 49 -0.98 -142 0 0 32 4 16 20 13 50.3 15 228 48 31 54 44 32 13 49 31 52 56 32 15 38 -0.98 -141 0 0 32 30 21 20 13 51.9 14 228 48 32 20 48 32 39 56 32 18 59 32 41 46 -0.99 -140 0 0 32 56 45 20 13 53.4 13 229 48 32 47 10 33 6 22 32 45 21 33 8 12 -0.99 -139 0 0 33 23 27 20 13 54.8 13 230 48 33 13 50 33 33 6 33 12 1 33 34 56 -0.99 -138 0 0 33 50 26 20 13 56.1 12 230 48 33 40 47 34 0 7 33 38 57 34 1 57 -0.99 -137 0 0 34 17 41 20 13 57.3 11 231 48 34 8 0 34 27 24 34 6 10 34 29 15 -0.99 -136 0 0 34 45 11 20 13 58.3 10 231 48 34 35 28 34 54 56 34 33 38 34 56 47 -0.99 -135 0 0 35 12 55 20 13 59.3 9 232 48 35 3 11 35 22 42 35 1 20 35 24 34 -0.99 -134 0 0 35 40 53 20 14 0.2 8 233 48 35 31 6 35 50 42 35 29 15 35 52 34 -1.00 -133 0 0 36 9 3 20 14 1.0 7 233 48 35 59 15 36 18 54 35 57 23 36 20 46 -1.00 -132 0 0 36 37 25 20 14 1.7 6 234 47 36 27 35 36 47 18 36 25 43 36 49 10 -1.01 -131 0 0 37 5 57 20 14 2.2 5 234 47 36 56 5 37 15 52 36 54 13 37 17 45 -1.01 -130 0 0 37 34 40 20 14 2.7 4 235 47 37 24 45 37 44 36 37 22 53 37 46 29 -1.02 -129 0 0 38 3 30 20 14 3.1 3 236 47 37 53 34 38 13 28 37 51 42 38 15 22 -1.04 -128 0 0 38 32 28 20 14 3.4 2 236 46 38 22 31 38 42 28 38 20 38 38 44 22 -1.06 -127 0 0 39 1 33 20 14 3.5 1 237 46 38 51 34 39 11 35 38 49 41 39 13 29 -1.12 -126 0 0 39 30 44 20 14 3.6 0 238 45 39 20 43 39 40 47 39 18 50 39 42 42 -1.42 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 14.2 Data for the target star ------------------------ * name: UCAC4 329-142992 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 22 08.4278 DE: -24 15 18.262 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 22 08.4278 DE: -24 15 18.262 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 11.9 * B mag [mag]: 13.6 * Diameter [mas]: 0.20 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2197) Shanghai asteroid class: approx. diameter [km]: 22 approx. diameter ["]: 0.009 distance from Earth [AU]: 3.56030 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): 0.014", 0.001", 89.8° remarks: * orbital elements for (2197)Shanghai : Mean anomaly = 120.6759424295 deg Arg. of pericenter = 70.1551126603 deg Long. of node = 56.3162775612 deg Inclination = 2.4945131593 deg Eccentricity = 0.1298633502 Semimajor axis = 3.1500336247 AU Perihelion dist = 2.7409597048 AU Mag: H = 11.59, G = 0.15 Epoch of elements : MJD 60376.84089612 TDT (2024 Mar 07.8409) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#502023Apr24,0.94,2024,3,7,20.181510,0.001341,0.698572,13.499009,-0.017237,-0.005699,-0.000259,-0.000001,0.000000 167.1464,-24.2442,-120.02,-4.84,False UCAC4 329-142992,18.36900769,-24.2550729,13.58,11.93,11.04,0.2,0,,18.39347668,-24.2442339,5.94,6.38,0,0,0 2197,Shanghai,17.87,22.523,3.5603,0,0,2.439,-0.04,,1.2,0 0,120.5277,2024,3,7,70.1551,56.3163,2.4945,0.12986,3.15003,2.74096,11.58,5.0,0.15 1.095,0.0143,0.0008,90,0.0008,Known errors,0.69,0,-1,-1 20240307_142992,60139.22 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 05:14 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org