IOTA/IOTA-ES occultation update for (2197) Shanghai / UCAC4 322-151146 event on 2024 Jul 03, 19:18 UT Visible from Summary ------- On 2024 Jul 03 UT, the 22.043 km diameter asteroid (2197) Shanghai will occult a 10.8 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 5.71 mag to 16.54 mag (the magnitude of the asteroid) for at most 1.580 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 Jul 03, 19:14 - 2024 Jul 03, 19:22 * geocentric midpoint of event [JD]: 2460495.30464159 * magnitude of target star: 10.84 * magnitude drop [mag]: 5.71 * estimated maximum duration [s]: 1.580 * Moon: 6 % sunlit, 161° distance * Sun: 171° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 48 * 1 sigma uncertainty interval [path widths]: +/- 0.17 * 1 sigma uncertainty interval [seconds]: +/- 2.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.021, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.021", 0.002", 90°) * approx speed of asteroid's shadow [km/s]: 13.9505 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 322-151146 by 2197 Shanghai on 2024 Jul 3 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 8 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 51 12 15 .... 9 0 0 51 1 1 19 22 7.6 1 134 1 51 19 30 50 42 48 51 25 54 50 36 37 .... 10 0 0 50 25 43 19 22 7.4 1 135 1 50 43 55 50 7 47 50 50 13 50 1 41 -1.14 11 0 0 49 51 11 19 22 6.9 2 136 0 50 9 6 49 33 30 50 15 18 49 27 30 -1.46 12 0 0 49 17 24 19 22 6.3 3 136 -1 49 35 3 48 59 58 49 41 9 48 54 3 -1.61 13 0 0 48 44 22 19 22 5.3 4 137 -2 49 1 46 48 27 11 49 7 47 48 21 21 -1.70 14 0 0 48 12 6 19 22 4.2 5 138 -3 48 29 16 47 55 9 48 35 12 47 49 24 -1.75 15 0 0 47 40 36 19 22 2.9 6 139 -4 47 57 32 47 23 53 48 3 23 47 18 11 -1.79 16 0 0 47 9 53 19 22 1.3 7 139 -5 47 26 36 46 53 22 47 32 22 46 47 45 -1.82 17 0 0 46 39 56 19 21 59.5 7 140 -5 46 56 27 46 23 38 47 2 9 46 18 5 -1.84 18 0 0 46 10 46 19 21 57.6 8 141 -6 46 27 5 45 54 39 46 32 43 45 49 10 -1.86 19 0 0 45 42 23 19 21 55.4 9 142 -7 45 58 30 45 26 27 46 4 4 45 21 2 -1.87 20 0 0 45 14 47 19 21 53.1 10 142 -8 45 30 43 44 59 1 45 36 13 44 53 40 -1.88 21 0 0 44 47 58 19 21 50.5 11 143 -9 45 3 43 44 32 22 45 9 9 44 27 4 -1.89 22 0 0 44 21 55 19 21 47.8 11 144 -10 44 37 31 44 6 29 44 42 54 44 1 14 -1.90 23 0 0 43 56 40 19 21 44.9 12 145 -10 44 12 6 43 41 24 44 17 26 43 36 12 -1.91 24 0 0 43 32 12 19 21 41.8 13 145 -11 43 47 29 43 17 5 43 52 46 43 11 55 -1.91 25 0 0 43 8 32 19 21 38.5 14 146 -12 43 23 40 42 53 32 43 28 54 42 48 26 -1.92 26 0 0 42 45 38 19 21 35.1 14 147 -13 43 0 38 42 30 47 43 5 49 42 25 43 -1.92 27 0 0 42 23 32 19 21 31.5 15 148 -13 42 38 24 42 8 48 42 43 32 42 3 47 -1.92 28 0 0 42 2 13 19 21 27.7 16 149 -14 42 16 58 41 47 36 42 22 3 41 42 37 -1.93 29 0 0 41 41 41 19 21 23.8 16 149 -15 41 56 19 41 27 11 42 1 22 41 22 15 -1.93 30 0 0 41 21 56 19 21 19.8 17 150 -16 41 36 27 41 7 33 41 41 28 41 2 39 -1.93 31 0 0 41 2 58 19 21 15.6 18 151 -16 41 17 23 40 48 41 41 22 21 40 43 49 -1.94 32 0 0 40 44 47 19 21 11.3 18 152 -17 40 59 6 40 30 36 41 4 2 40 25 46 -1.94 33 0 0 40 27 24 19 21 6.8 19 153 -18 40 41 37 40 13 18 40 46 31 40 8 30 -1.94 34 0 0 40 10 47 19 21 2.2 19 153 -18 40 24 54 39 56 46 40 29 47 39 52 0 -1.94 35 0 0 39 54 57 19 20 57.5 20 154 -19 40 8 59 39 41 2 40 13 50 39 36 17 -1.94 36 0 0 39 39 54 19 20 52.7 21 155 -20 39 53 52 39 26 3 39 58 40 39 21 20 -1.94 37 0 0 39 25 38 19 20 47.8 21 156 -20 39 39 31 39 11 51 39 44 18 39 7 10 -1.95 38 0 0 39 12 8 19 20 42.7 22 157 -21 39 25 57 38 58 26 39 30 43 38 53 46 -1.95 39 0 0 38 59 25 19 20 37.6 22 158 -21 39 13 10 38 45 47 39 17 54 38 41 8 -1.95 40 0 0 38 47 29 19 20 32.3 23 158 -22 39 1 10 38 33 54 39 5 53 38 29 17 -1.95 41 0 0 38 36 19 19 20 27.0 23 159 -23 38 49 57 38 22 48 38 54 39 38 18 11 -1.95 42 0 0 38 25 56 19 20 21.5 23 160 -23 38 39 31 38 12 28 38 44 11 38 7 52 -1.95 43 0 0 38 16 19 19 20 16.0 24 161 -24 38 29 51 38 2 54 38 34 30 37 58 19 -1.95 44 0 0 38 7 29 19 20 10.4 24 162 -24 38 20 58 37 54 6 38 25 36 37 49 32 -1.95 45 0 0 37 59 25 19 20 4.8 25 163 -25 38 12 51 37 46 4 38 17 29 37 41 31 -1.95 46 0 0 37 52 7 19 19 59.1 25 164 -25 38 5 31 37 38 49 38 10 8 37 34 16 -1.95 47 0 0 37 45 35 19 19 53.3 25 165 -25 37 58 58 37 32 19 38 3 34 37 27 47 -1.95 48 0 0 37 39 50 19 19 47.4 25 166 -26 37 53 10 37 26 35 37 57 46 37 22 4 -1.95 49 0 0 37 34 51 19 19 41.5 26 167 -26 37 48 10 37 21 37 37 52 45 37 17 7 -1.96 50 0 0 37 30 38 19 19 35.5 26 168 -27 37 43 56 37 17 26 37 48 31 37 12 55 -1.96 51 0 0 37 27 11 19 19 29.5 26 169 -27 37 40 28 37 13 59 37 45 2 37 9 30 -1.96 52 0 0 37 24 29 19 19 23.5 26 170 -27 37 37 45 37 11 19 37 42 20 37 6 50 -1.96 53 0 0 37 22 34 19 19 17.4 27 171 -27 37 35 50 37 9 25 37 40 24 37 4 55 -1.96 54 0 0 37 21 25 19 19 11.3 27 172 -28 37 34 40 37 8 15 37 39 14 37 3 46 -1.96 55 0 0 37 21 1 19 19 5.2 27 173 -28 37 34 16 37 7 52 37 38 50 37 3 23 -1.96 56 0 0 37 21 24 19 18 59.0 27 173 -28 37 34 39 37 8 15 37 39 13 37 3 45 -1.96 57 0 0 37 22 32 19 18 52.8 27 174 -28 37 35 48 37 9 23 37 40 22 37 4 54 -1.96 58 0 0 37 24 27 19 18 46.7 27 175 -29 37 37 43 37 11 17 37 42 17 37 6 47 -1.96 59 0 0 37 27 7 19 18 40.5 27 176 -29 37 40 24 37 13 57 37 44 58 37 9 27 -1.96 60 0 0 37 30 34 19 18 34.3 27 177 -29 37 43 51 37 17 22 37 48 26 37 12 52 -1.96 61 0 0 37 34 46 19 18 28.1 27 178 -29 37 48 5 37 21 33 37 52 40 37 17 3 -1.97 62 0 0 37 39 44 19 18 21.9 27 179 -29 37 53 4 37 26 30 37 57 40 37 21 59 -1.97 63 0 0 37 45 28 19 18 15.7 27 180 -29 37 58 50 37 32 13 38 3 27 37 27 41 -1.97 64 0 0 37 51 58 19 18 9.6 27 181 -29 38 5 22 37 38 41 38 9 59 37 34 9 -1.97 65 0 0 37 59 14 19 18 3.5 26 182 -29 38 12 40 37 45 55 38 17 18 37 41 22 -1.97 66 0 0 38 7 16 19 17 57.4 26 183 -29 38 20 45 37 53 54 38 25 23 37 49 21 -1.97 67 0 0 38 16 4 19 17 51.3 26 184 -29 38 29 35 38 2 40 38 34 14 37 58 6 -1.97 68 0 0 38 25 38 19 17 45.3 26 185 -29 38 39 12 38 12 11 38 43 52 38 7 36 -1.97 69 0 0 38 35 59 19 17 39.3 26 186 -29 38 49 35 38 22 28 38 54 17 38 17 52 -1.98 70 0 0 38 47 5 19 17 33.3 25 187 -28 39 0 45 38 33 31 39 5 27 38 28 54 -1.98 71 0 0 38 58 57 19 17 27.4 25 188 -28 39 12 41 38 45 20 39 17 25 38 40 41 -1.98 72 0 0 39 11 35 19 17 21.6 25 189 -28 39 25 23 38 57 55 39 30 8 38 53 15 -1.98 73 0 0 39 25 0 19 17 15.8 24 190 -28 39 38 52 39 11 15 39 43 39 39 6 34 -1.98 74 0 0 39 39 12 19 17 10.1 24 191 -28 39 53 8 39 25 22 39 57 56 39 20 40 -1.98 75 0 0 39 54 9 19 17 4.5 24 192 -27 40 8 10 39 40 16 40 13 0 39 35 32 -1.99 76 0 0 40 9 54 19 16 59.0 23 193 -27 40 23 59 39 55 55 40 28 51 39 51 9 -1.99 77 0 0 40 26 24 19 16 53.5 23 194 -27 40 40 35 40 12 20 40 45 28 40 7 33 -1.99 78 0 0 40 43 40 19 16 48.1 22 195 -26 40 57 57 40 29 31 41 2 52 40 24 42 -1.99 79 0 0 41 1 44 19 16 42.8 22 196 -26 41 16 6 40 47 29 41 21 4 40 42 38 -1.99 80 0 0 41 20 34 19 16 37.7 21 196 -26 41 35 2 41 6 13 41 40 2 41 1 20 -1.99 81 0 0 41 40 10 19 16 32.6 21 197 -25 41 54 45 41 25 43 41 59 47 41 20 48 -2.00 82 0 0 42 0 33 19 16 27.6 20 198 -25 42 15 15 41 45 59 42 20 20 41 41 1 -2.00 83 0 0 42 21 42 19 16 22.8 20 199 -24 42 36 32 42 7 1 42 41 39 42 2 1 -2.00 84 0 0 42 43 38 19 16 18.0 19 200 -24 42 58 35 42 28 50 43 3 45 42 23 47 -2.00 85 0 0 43 6 20 19 16 13.4 19 201 -23 43 21 26 42 51 24 43 26 38 42 46 18 -2.01 86 0 0 43 29 49 19 16 9.0 18 202 -23 43 45 3 43 14 45 43 50 19 43 9 36 -2.01 87 0 0 43 54 6 19 16 4.6 17 202 -22 44 9 28 43 38 52 44 14 47 43 33 41 -2.01 88 0 0 44 19 7 19 16 0.4 17 203 -21 44 34 39 44 3 45 44 40 1 43 58 31 -2.01 89 0 0 44 44 56 19 15 56.4 16 204 -21 45 0 37 44 29 24 45 6 2 44 24 7 -2.02 90 0 0 45 11 30 19 15 52.5 15 205 -20 45 27 22 44 55 49 45 32 50 44 50 28 -2.02 91 0 0 45 38 51 19 15 48.8 15 206 -20 45 54 53 45 22 59 46 0 26 45 17 35 -2.02 92 0 0 46 6 58 19 15 45.2 14 207 -19 46 23 11 45 50 55 46 28 48 45 45 28 -2.02 93 0 0 46 35 51 19 15 41.8 13 207 -18 46 52 16 46 19 37 46 57 57 46 14 6 -2.03 94 0 0 47 5 30 19 15 38.6 12 208 -17 47 22 8 46 49 4 47 27 53 46 43 29 -2.03 95 0 0 47 35 56 19 15 35.6 12 209 -17 47 52 46 47 19 17 47 58 35 47 13 38 -2.03 96 0 0 48 7 6 19 15 32.7 11 210 -16 48 24 10 47 50 15 48 30 4 47 44 31 -2.04 97 0 0 48 39 2 19 15 30.0 10 211 -15 48 56 21 48 21 57 49 2 20 48 16 9 -2.04 98 0 0 49 11 44 19 15 27.6 9 211 -15 49 29 17 48 54 24 49 35 21 48 48 31 -2.05 99 0 0 49 45 10 19 15 25.3 8 212 -14 50 2 58 49 27 36 50 9 8 49 21 37 -2.06 100 0 0 50 19 21 19 15 23.3 8 213 -13 50 37 26 50 1 31 50 43 41 49 55 28 -2.06 101 0 0 50 54 16 19 15 21.4 7 214 -12 51 12 38 50 36 10 51 18 59 50 30 1 -2.07 102 0 0 51 29 55 19 15 19.8 6 215 -11 51 48 35 51 11 32 51 55 3 51 5 17 -2.08 103 0 0 52 6 18 19 15 18.4 5 215 -11 52 25 17 51 47 37 52 31 51 51 41 16 -2.10 104 0 0 52 43 24 19 15 17.2 4 216 -10 53 2 42 52 24 24 53 9 24 52 17 57 -2.12 105 0 0 53 21 12 19 15 16.2 3 217 -9 53 40 51 53 1 52 53 47 40 52 55 19 -2.15 106 0 0 53 59 42 19 15 15.5 2 218 -8 54 19 43 53 40 2 54 26 39 53 33 22 -2.20 107 0 0 54 38 54 19 15 15.0 2 219 -7 54 59 17 54 18 52 55 6 22 54 12 4 -2.32 108 0 0 55 18 46 19 15 14.7 1 219 -6 55 39 34 54 58 21 55 46 47 54 51 26 -2.72 109 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 55 38 30 .. .. .. 55 31 27 .... Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: UCAC4 322-151146 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 16 22.4711 DE: -25 38 09.427 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 16 22.4710 DE: -25 38 09.427 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 10.8 * B mag [mag]: 10.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2197) Shanghai asteroid class: approx. diameter [km]: 22 approx. diameter ["]: 0.012 distance from Earth [AU]: 2.47930 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): 0.021", 0.002", 89.796° remarks: * orbital elements for (2197)Shanghai : Mean anomaly = 141.4770784043 deg Arg. of pericenter = 70.1450517259 deg Long. of node = 56.3148188705 deg Inclination = 2.4944080761 deg Eccentricity = 0.1299848031 Semimajor axis = 3.1497432497 AU Perihelion dist = 2.7403244937 AU Mag: H = 11.59, G = 0.15 Epoch of elements : MJD 60494.80464188 TDT (2024 Jul 03.8046) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#502023Apr24,1.58,2024,7,3,19.311398,-0.049840,0.888354,-7.861682,-0.441152,0.000803,0.000244,0.000001,0.000000 62.5032,-25.6280,-108.56,22.87,False UCAC4 322-151146,18.27290863,-25.6359519,10.92,10.84,10.80,0.0,0,,18.29854942,-25.6279530,5.70,5.30,0,0,0 2197,Shanghai,16.54,22.043,2.4793,0,0,-2.061,-1.56,,1.2,0 0,141.3352,2024,7,3,70.1451,56.3148,2.4944,0.12998,3.14974,2.74032,11.58,5.0,0.15 1.171,0.0210,0.0018,90,0.0021,Known errors,0.61,0,-1,-1 20240703_151146,60140.18 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 04:22 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org