IOTA/IOTA-ES occultation update for (4530) Smoluchowski / TYC 6287-00458-1 event on 2024 Mar 10, 02:26 UT Visible from Summary ------- On 2024 Mar 10 UT, the 15.0789953485717 km diameter asteroid (4530) Smoluchowski will occult a 9.4 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 9.30 mag to 18.68 mag (the magnitude of the asteroid) for at most 0.520 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 Mar 10, 02:24 - 2024 Mar 10, 02:28 * geocentric midpoint of event [JD]: 2460379.60172058 * magnitude of target star: 9.38 * magnitude drop [mag]: 9.30 * estimated maximum duration [s]: 0.520 * Moon: 0 % sunlit, 61° distance * Sun: 64° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 27 * 1 sigma uncertainty interval [path widths]: +/- 0.26 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.001", 86°) * approx speed of asteroid's shadow [km/s]: 29.4394 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6287-00458-1 by 4530 Smoluchowski on 2024 Mar 10 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 11 0 0 43 26 52 2 24 26.6 0 115 -34 43 18 47 43 34 58 43 14 35 43 39 13 .... 12 0 0 43 6 45 2 24 26.7 1 116 -34 42 58 42 43 14 49 42 54 30 43 19 3 -0.78 13 0 0 42 46 58 2 24 26.8 2 117 -33 42 38 57 42 55 1 42 34 47 42 59 14 -1.05 14 0 0 42 27 33 2 24 27.1 3 117 -33 42 19 34 42 35 34 42 15 24 42 39 46 -1.17 15 0 0 42 8 30 2 24 27.4 4 118 -32 42 0 32 42 16 29 41 56 24 42 20 40 -1.24 16 0 0 41 49 49 2 24 27.7 4 119 -32 41 41 53 41 57 46 41 37 46 42 1 57 -1.28 17 0 0 41 31 31 2 24 28.2 5 119 -31 41 23 37 41 39 27 41 19 30 41 43 36 -1.31 18 0 0 41 13 37 2 24 28.7 6 120 -31 41 5 45 41 21 31 41 1 39 41 25 40 -1.33 19 0 0 40 56 7 2 24 29.3 7 121 -30 40 48 16 41 4 0 40 44 11 41 8 7 -1.34 20 0 0 40 39 1 2 24 30.0 8 121 -30 40 31 12 40 46 52 40 27 8 40 50 59 -1.36 21 0 0 40 22 20 2 24 30.7 8 122 -29 40 14 33 40 30 9 40 10 29 40 34 15 -1.37 22 0 0 40 6 4 2 24 31.6 9 123 -28 39 58 18 40 13 52 39 54 16 40 17 57 -1.38 23 0 0 39 50 15 2 24 32.5 10 123 -28 39 42 30 39 58 1 39 38 28 40 2 5 -1.38 24 0 0 39 34 51 2 24 33.5 11 124 -27 39 27 8 39 42 36 39 23 6 39 46 39 -1.39 25 0 0 39 19 54 2 24 34.5 12 125 -27 39 12 12 39 27 37 39 8 11 39 31 40 -1.40 26 0 0 39 5 24 2 24 35.6 12 125 -26 38 57 43 39 13 6 38 53 43 39 17 8 -1.40 27 0 0 38 51 21 2 24 36.9 13 126 -25 38 43 42 38 59 1 38 39 42 39 3 3 -1.40 28 0 0 38 37 46 2 24 38.1 14 127 -24 38 30 8 38 45 25 38 26 9 38 49 26 -1.41 29 0 0 38 24 39 2 24 39.5 15 128 -24 38 17 2 38 32 17 38 13 4 38 36 17 -1.41 30 0 0 38 12 0 2 24 40.9 15 128 -23 38 4 24 38 19 37 38 0 27 38 23 36 -1.42 31 0 0 37 59 49 2 24 42.4 16 129 -22 37 52 15 38 7 25 37 48 18 38 11 24 -1.42 32 0 0 37 48 8 2 24 43.9 17 130 -22 37 40 35 37 55 43 37 36 39 37 59 41 -1.42 33 0 0 37 36 56 2 24 45.6 18 130 -21 37 29 24 37 44 30 37 25 28 37 48 27 -1.42 34 0 0 37 26 13 2 24 47.3 18 131 -20 37 18 42 37 33 46 37 14 47 37 37 43 -1.43 35 0 0 37 16 0 2 24 49.0 19 132 -19 37 8 30 37 23 32 37 4 36 37 27 29 -1.43 36 0 0 37 6 17 2 24 50.8 20 133 -19 36 58 48 37 13 48 36 54 54 37 17 44 -1.43 37 0 0 36 57 4 2 24 52.7 20 133 -18 36 49 36 37 4 34 36 45 42 37 8 30 -1.43 38 0 0 36 48 22 2 24 54.7 21 134 -17 36 40 54 36 55 51 36 37 1 36 59 46 -1.43 39 0 0 36 40 10 2 24 56.7 22 135 -16 36 32 43 36 47 38 36 28 50 36 51 33 -1.44 40 0 0 36 32 29 2 24 58.8 22 136 -15 36 25 2 36 39 56 36 21 10 36 43 51 -1.44 41 0 0 36 25 18 2 25 0.9 23 137 -15 36 17 53 36 32 45 36 14 0 36 36 39 -1.44 42 0 0 36 18 39 2 25 3.1 24 137 -14 36 11 14 36 26 5 36 7 22 36 29 59 -1.44 43 0 0 36 12 31 2 25 5.3 24 138 -13 36 5 6 36 19 57 36 1 15 36 23 50 -1.44 44 0 0 36 6 54 2 25 7.6 25 139 -12 35 59 30 36 14 20 35 55 39 36 18 13 -1.44 45 0 0 36 1 49 2 25 10.0 26 140 -11 35 54 25 36 9 14 35 50 34 36 13 7 -1.44 46 0 0 35 57 15 2 25 12.4 26 141 -11 35 49 52 36 4 40 35 46 1 36 8 32 -1.45 47 0 0 35 53 13 2 25 14.8 27 142 -10 35 45 50 36 0 37 35 41 59 36 4 30 -1.45 48 0 0 35 49 43 2 25 17.3 27 143 -9 35 42 20 35 57 7 35 38 30 36 0 59 -1.45 49 0 0 35 46 44 2 25 19.9 28 144 -8 35 39 22 35 54 8 35 35 32 35 58 0 -1.45 50 0 0 35 44 18 2 25 22.5 28 145 -7 35 36 56 35 51 42 35 33 6 35 55 34 -1.45 51 0 0 35 42 24 2 25 25.1 29 145 -7 35 35 2 35 49 47 35 31 12 35 53 39 -1.45 52 0 0 35 41 2 2 25 27.8 29 146 -6 35 33 40 35 48 25 35 29 50 35 52 17 -1.45 53 0 0 35 40 11 2 25 30.5 30 147 -5 35 32 50 35 47 35 35 29 0 35 51 27 -1.45 54 0 0 35 39 53 2 25 33.2 30 148 -4 35 32 32 35 47 17 35 28 42 35 51 9 -1.45 55 0 0 35 40 8 2 25 36.0 31 149 -3 35 32 46 35 47 31 35 28 56 35 51 23 -1.45 56 0 0 35 40 54 2 25 38.9 31 150 -2 35 33 32 35 48 17 35 29 42 35 52 9 -1.46 57 0 0 35 42 12 2 25 41.7 31 151 -2 35 34 50 35 49 36 35 31 0 35 53 28 -1.46 58 0 0 35 44 3 2 25 44.6 32 152 -1 35 36 41 35 51 27 35 32 50 35 55 19 -1.46 59 0 0 35 46 26 2 25 47.5 32 154 0 35 39 3 35 53 50 35 35 13 35 57 42 -1.46 60 0 0 35 49 21 2 25 50.5 32 155 1 35 41 58 35 56 45 35 38 7 36 0 37 -1.46 61 0 0 35 52 48 2 25 53.4 33 156 2 35 45 25 36 0 12 35 41 34 36 4 5 -1.46 62 0 0 35 56 47 2 25 56.4 33 157 2 35 49 23 36 4 12 35 45 32 36 8 5 -1.46 63 0 0 36 1 18 2 25 59.4 33 158 3 35 53 54 36 8 43 35 50 2 36 12 36 -1.46 64 0 0 36 6 20 2 26 2.5 33 159 4 35 58 56 36 13 46 35 55 4 36 17 40 -1.46 65 0 0 36 11 55 2 26 5.5 34 160 5 36 4 30 36 19 21 36 0 38 36 23 15 -1.46 66 0 0 36 18 1 2 26 8.6 34 161 6 36 10 35 36 25 28 36 6 43 36 29 22 -1.46 67 0 0 36 24 38 2 26 11.7 34 162 6 36 17 12 36 32 6 36 13 20 36 36 1 -1.46 68 0 0 36 31 48 2 26 14.8 34 164 7 36 24 21 36 39 16 36 20 28 36 43 11 -1.46 69 0 0 36 39 28 2 26 17.9 34 165 8 36 32 0 36 46 57 36 28 7 36 50 53 -1.46 70 0 0 36 47 40 2 26 21.0 34 166 9 36 40 11 36 55 10 36 36 17 36 59 5 -1.46 71 0 0 36 56 22 2 26 24.1 34 167 10 36 48 52 37 3 52 36 44 58 37 7 48 -1.46 72 0 0 37 5 35 2 26 27.2 34 168 10 36 58 5 37 13 6 36 54 10 37 17 3 -1.46 73 0 0 37 15 19 2 26 30.3 34 169 11 37 7 48 37 22 51 37 3 53 37 26 48 -1.47 74 0 0 37 25 33 2 26 33.4 34 171 12 37 18 1 37 33 7 37 14 5 37 37 4 -1.47 75 0 0 37 36 18 2 26 36.5 34 172 13 37 28 45 37 43 52 37 24 48 37 47 50 -1.47 76 0 0 37 47 32 2 26 39.7 34 173 13 37 39 58 37 55 8 37 36 1 37 59 7 -1.47 77 0 0 37 59 17 2 26 42.8 34 174 14 37 51 42 38 6 54 37 47 44 38 10 53 -1.47 78 0 0 38 11 31 2 26 45.8 34 175 15 38 3 55 38 19 9 37 59 57 38 23 9 -1.47 79 0 0 38 24 14 2 26 48.9 34 176 15 38 16 36 38 31 54 38 12 38 38 35 54 -1.47 80 0 0 38 37 26 2 26 52.0 34 178 16 38 29 47 38 45 7 38 25 48 38 49 8 -1.47 81 0 0 38 51 7 2 26 55.0 33 179 17 38 43 26 38 58 48 38 39 26 39 2 50 -1.47 82 0 0 39 5 16 2 26 58.1 33 180 17 38 57 34 39 12 59 38 53 33 39 17 1 -1.47 83 0 0 39 19 52 2 27 1.1 33 181 18 39 12 9 39 27 37 39 8 8 39 31 40 -1.47 84 0 0 39 34 57 2 27 4.0 33 182 19 39 27 12 39 42 43 39 23 10 39 46 47 -1.47 85 0 0 39 50 28 2 27 7.0 32 183 19 39 42 42 39 58 16 39 38 39 40 2 21 -1.47 86 0 0 40 6 27 2 27 9.9 32 184 20 39 58 39 40 14 16 39 54 36 40 18 21 -1.47 87 0 0 40 22 51 2 27 12.8 32 186 21 40 15 2 40 30 42 40 10 58 40 34 48 -1.47 88 0 0 40 39 42 2 27 15.7 31 187 21 40 31 51 40 47 34 40 27 46 40 51 41 -1.47 89 0 0 40 56 58 2 27 18.5 31 188 22 40 49 6 41 4 52 40 45 0 41 9 0 -1.47 90 0 0 41 14 39 2 27 21.4 31 189 22 41 6 45 41 22 35 41 2 38 41 26 44 -1.47 91 0 0 41 32 45 2 27 24.1 30 190 23 41 24 49 41 40 42 41 20 41 41 44 52 -1.47 92 0 0 41 51 15 2 27 26.8 30 191 23 41 43 17 41 59 14 41 39 9 42 3 25 -1.47 93 0 0 42 10 8 2 27 29.5 29 192 24 42 2 9 42 18 9 41 57 59 42 22 21 -1.47 94 0 0 42 29 24 2 27 32.2 29 193 24 42 21 23 42 37 27 42 17 13 42 41 40 -1.47 95 0 0 42 49 3 2 27 34.8 28 194 25 42 41 0 42 57 8 42 36 49 43 1 22 -1.47 96 0 0 43 9 4 2 27 37.3 28 195 25 43 0 59 43 17 10 42 56 47 43 21 25 -1.47 97 0 0 43 29 26 2 27 39.8 27 196 26 43 21 19 43 37 34 43 17 6 43 41 50 -1.47 98 0 0 43 50 8 2 27 42.3 27 197 26 43 42 0 43 58 19 43 37 46 44 2 36 -1.47 99 0 0 44 11 11 2 27 44.7 26 198 26 44 3 1 44 19 23 43 58 45 44 23 41 -1.47 100 0 0 44 32 33 2 27 47.1 26 199 27 44 24 20 44 40 47 44 20 4 44 45 6 -1.47 101 0 0 44 54 13 2 27 49.4 25 200 27 44 45 59 45 2 30 44 41 42 45 6 50 -1.47 102 0 0 45 16 12 2 27 51.6 24 201 27 45 7 56 45 24 30 45 3 37 45 28 51 -1.47 103 0 0 45 38 28 2 27 53.8 24 202 28 45 30 10 45 46 48 45 25 50 45 51 10 -1.47 104 0 0 46 1 0 2 27 55.9 23 203 28 45 52 40 46 9 23 45 48 19 46 13 46 -1.47 105 0 0 46 23 48 2 27 58.0 23 204 28 46 15 26 46 32 13 46 11 4 46 36 37 -1.47 106 0 0 46 46 52 2 28 0.0 22 205 29 46 38 27 46 55 18 46 34 4 46 59 43 -1.47 107 0 0 47 10 9 2 28 1.9 21 206 29 47 1 42 47 18 37 46 57 19 47 23 4 -1.47 108 0 0 47 33 40 2 28 3.8 21 207 29 47 25 11 47 42 10 47 20 46 47 46 38 -1.47 109 0 0 47 57 23 2 28 5.6 20 208 29 47 48 52 48 5 56 47 44 27 48 10 24 -1.47 110 0 0 48 21 18 2 28 7.4 19 209 29 48 12 46 48 29 53 48 8 19 48 34 23 -1.47 111 0 0 48 45 24 2 28 9.1 19 209 29 48 36 50 48 54 1 48 32 22 48 58 32 -1.47 112 0 0 49 9 40 2 28 10.7 18 210 30 49 1 4 49 18 19 48 56 35 49 22 51 -1.47 113 0 0 49 34 6 2 28 12.3 17 211 30 49 25 27 49 42 47 49 20 57 49 47 20 -1.48 114 0 0 49 58 40 2 28 13.8 17 212 30 49 49 59 50 7 22 49 45 28 50 11 56 -1.48 115 0 0 50 23 21 2 28 15.2 16 213 30 50 14 38 50 32 6 50 10 6 50 36 41 -1.48 116 0 0 50 48 8 2 28 16.5 15 214 30 50 39 24 50 56 55 50 34 51 51 1 31 -1.48 117 0 0 51 13 2 2 28 17.8 14 215 30 51 4 15 51 21 50 50 59 41 51 26 28 -1.48 118 0 0 51 38 0 2 28 19.1 14 215 30 51 29 11 51 46 50 51 24 36 51 51 28 -1.48 119 0 0 52 3 1 2 28 20.2 13 216 30 51 54 11 52 11 54 51 49 35 52 16 33 -1.48 120 0 0 52 28 6 2 28 21.3 12 217 30 52 19 14 52 37 0 52 14 37 52 41 41 -1.48 121 0 0 52 53 13 2 28 22.3 12 218 30 52 44 19 53 2 9 52 39 41 53 6 50 -1.48 122 0 0 53 18 20 2 28 23.3 11 219 30 53 9 25 53 27 18 53 4 46 53 32 0 -1.48 123 0 0 53 43 28 2 28 24.2 10 220 29 53 34 31 53 52 28 53 29 51 53 57 11 -1.48 124 0 0 54 8 35 2 28 25.0 10 221 29 53 59 36 54 17 37 53 54 56 54 22 20 -1.49 125 0 0 54 33 41 2 28 25.8 9 221 29 54 24 40 54 42 43 54 19 59 54 47 28 -1.49 126 0 0 54 58 43 2 28 26.5 8 222 29 54 49 41 55 7 48 54 44 59 55 12 33 -1.49 127 0 0 55 23 42 2 28 27.1 7 223 29 55 14 39 55 32 48 55 9 56 55 37 34 -1.49 128 0 0 55 48 37 2 28 27.7 7 224 29 55 39 32 55 57 44 55 34 49 56 2 31 -1.50 129 0 0 56 13 26 2 28 28.2 6 225 28 56 4 20 56 22 35 55 59 36 56 27 23 -1.50 130 0 0 56 38 10 2 28 28.6 5 226 28 56 29 3 56 47 20 56 24 18 56 52 8 -1.50 131 0 0 57 2 46 2 28 29.0 5 226 28 56 53 38 57 11 57 56 48 53 57 16 46 -1.51 132 0 0 57 27 15 2 28 29.4 4 227 28 57 18 5 57 36 27 57 13 20 57 41 16 -1.52 133 0 0 57 51 35 2 28 29.7 3 228 27 57 42 24 58 0 48 57 37 38 58 5 38 -1.53 134 0 0 58 15 46 2 28 29.9 3 229 27 58 6 34 58 25 0 58 1 47 58 29 50 -1.54 135 0 0 58 39 46 2 28 30.1 2 230 27 58 30 34 58 49 1 58 25 47 58 53 52 -1.57 135 59 59 59 3 35 2 28 30.2 1 231 27 58 54 23 59 12 51 58 49 35 59 17 42 -1.62 136 59 59 59 27 13 2 28 30.3 1 232 26 59 18 0 59 36 30 59 13 12 59 41 21 -1.75 137 59 59 59 50 39 2 28 30.3 0 232 26 59 41 25 .. .. .. 59 36 36 .. .. .. -4.39 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 14.2 Data for the target star ------------------------ * name: TYC 6287-00458-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 06 51.8452 DE: -17 55 40.997 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 06 51.8453 DE: -17 55 40.997 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 9.4 * B mag [mag]: 9.5 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (4530) Smoluchowski asteroid class: approx. diameter [km]: 15 approx. diameter ["]: 0.006 distance from Earth [AU]: 3.39190 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): 0.014", 0.001", 86.1° remarks: * orbital elements for (4530)Smoluchowski : Mean anomaly = 78.4784039152 deg Arg. of pericenter = 14.3740417569 deg Long. of node = 164.6891580107 deg Inclination = 5.2119350088 deg Eccentricity = 0.1004764456 Semimajor axis = 3.1171350213 AU Perihelion dist = 2.8039363740 AU Mag: H = 12.70, G = 0.15 Epoch of elements : MJD 60379.10172050 TDT (2024 Mar 10.1017) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#532023Apr25,0.52,2024,3,10,2.441294,-0.134656,0.813382,16.392690,2.717479,-0.005317,-0.000413,-0.000001,0.000000 82.1830,-17.8923,145.94,-3.96,False TYC 6287-00458-1,19.11440142,-17.9280547,9.51,9.38,9.31,0.1,0,,19.13759379,-17.8922648,9.30,8.92,0,0,0 4530,Smoluchowski,18.68,15.325,3.3919,0,0,2.977,7.05,,1.4,0 0,78.4602,2024,3,10,14.3740,164.6892,5.2119,0.10048,3.11714,2.80394,12.69,5.0,0.15 1.261,0.0143,0.0008,86,0.0016,Known errors,1.55,0,-1,-1 20240310_0458-1,60139.22 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 05:20 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org