IOTA/IOTA-ES occultation update for (2928) Epstein / TYC 6873-00418-1 event on 2024 Oct 30, 10:40 UT Visible from Summary ------- On 2024 Oct 30 UT, the 16.672 km diameter asteroid (2928) Epstein will occult a 11.5 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 6.30 mag to 17.80 mag (the magnitude of the asteroid) for at most 0.600 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: 96 * date and approx. time of event: 2024 Oct 30, 10:38 - 2024 Oct 30, 10:43 * geocentric midpoint of event [JD]: 2460613.94508279 * magnitude of target star: 11.50 * magnitude drop [mag]: 6.30 * estimated maximum duration [s]: 0.600 * Moon: 4 % sunlit, 89° distance * Sun: 66° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 24 * 1 sigma uncertainty interval [path widths]: +/- 0.41 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.003", 74°) * approx speed of asteroid's shadow [km/s]: 27.8904 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6873-00418-1 by 2928 Epstein on 2024 Oct 30 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 12 0 0 30 5 51 10 38 16.7 0 119 46 29 58 29 30 13 14 29 52 31 30 19 14 .... 13 0 0 29 38 0 10 38 16.8 1 119 46 29 30 40 29 45 21 29 24 44 29 51 20 -0.53 14 0 0 29 10 39 10 38 16.9 2 120 47 29 3 21 29 17 58 28 57 27 29 23 55 -0.73 15 0 0 28 43 48 10 38 17.2 3 120 47 28 36 32 28 51 5 28 30 39 28 57 0 -0.82 16 0 0 28 17 27 10 38 17.6 4 121 48 28 10 13 28 24 42 28 4 22 28 30 35 -0.87 17 0 0 27 51 37 10 38 18.1 5 121 48 27 44 25 27 58 50 27 38 35 28 4 42 -0.90 18 0 0 27 26 19 10 38 18.7 6 122 49 27 19 9 27 33 30 27 13 21 27 39 20 -0.92 19 0 0 27 1 33 10 38 19.3 7 122 49 26 54 25 27 8 42 26 48 38 27 14 31 -0.94 20 0 0 26 37 20 10 38 20.1 8 123 49 26 30 14 26 44 27 26 24 29 26 50 15 -0.95 21 0 0 26 13 41 10 38 20.9 9 123 50 26 6 36 26 20 46 26 0 53 26 26 32 -0.96 22 0 0 25 50 35 10 38 21.9 10 123 50 25 43 33 25 57 39 25 37 50 26 3 23 -0.97 23 0 0 25 28 4 10 38 22.9 11 124 50 25 21 3 25 35 6 25 15 22 25 40 49 -0.97 24 0 0 25 6 8 10 38 24.1 12 124 50 24 59 9 25 13 8 24 53 29 25 18 50 -0.98 25 0 0 24 44 47 10 38 25.3 13 125 50 24 37 49 24 51 45 24 32 11 24 57 26 -0.98 26 0 0 24 24 1 10 38 26.6 14 125 51 24 17 5 24 30 58 24 11 28 24 36 37 -0.99 27 0 0 24 3 52 10 38 28.0 15 126 51 23 56 57 24 10 47 23 51 22 24 16 25 -0.99 28 0 0 23 44 19 10 38 29.5 16 126 51 23 37 26 23 51 13 23 31 51 23 56 49 -0.99 29 0 0 23 25 23 10 38 31.1 17 127 51 23 18 31 23 32 15 23 12 58 23 37 50 -1.00 30 0 0 23 7 3 10 38 32.8 18 127 51 23 0 13 23 13 54 22 54 41 23 19 29 -1.00 31 0 0 22 49 21 10 38 34.5 19 128 51 22 42 33 22 56 11 22 37 2 23 1 44 -1.00 32 0 0 22 32 17 10 38 36.4 20 128 50 22 25 30 22 39 6 22 20 0 22 44 37 -1.00 33 0 0 22 15 51 10 38 38.3 21 129 50 22 9 4 22 22 38 22 3 35 22 28 9 -1.01 34 0 0 22 0 2 10 38 40.3 21 129 50 21 53 17 22 6 48 21 47 49 22 12 18 -1.01 35 0 0 21 44 52 10 38 42.4 22 130 50 21 38 8 21 51 37 21 32 41 21 57 6 -1.01 36 0 0 21 30 21 10 38 44.5 23 130 50 21 23 38 21 37 4 21 18 12 21 42 33 -1.01 37 0 0 21 16 28 10 38 46.7 24 131 49 21 9 46 21 23 11 21 4 21 21 28 38 -1.01 38 0 0 21 3 14 10 38 49.0 25 132 49 20 56 34 21 9 56 20 51 9 21 15 22 -1.02 39 0 0 20 50 40 10 38 51.4 26 132 49 20 44 0 20 57 20 20 38 36 21 2 46 -1.02 40 0 0 20 38 44 10 38 53.9 27 133 48 20 32 5 20 45 24 20 26 42 20 50 49 -1.02 41 0 0 20 27 28 10 38 56.4 27 133 48 20 20 50 20 34 7 20 15 28 20 39 31 -1.02 42 0 0 20 16 52 10 38 59.0 28 134 47 20 10 15 20 23 30 20 4 53 20 28 53 -1.02 43 0 0 20 6 55 10 39 1.6 29 135 47 20 0 19 20 13 32 19 54 58 20 18 55 -1.02 44 0 0 19 57 38 10 39 4.3 30 135 46 19 51 2 20 4 15 19 45 42 20 9 37 -1.02 45 0 0 19 49 1 10 39 7.1 31 136 46 19 42 26 19 55 37 19 37 6 20 0 59 -1.02 46 0 0 19 41 5 10 39 10.0 31 137 45 19 34 30 19 47 40 19 29 11 19 53 1 -1.02 47 0 0 19 33 48 10 39 12.9 32 137 45 19 27 14 19 40 23 19 21 55 19 45 43 -1.03 48 0 0 19 27 11 10 39 15.8 33 138 44 19 20 38 19 33 46 19 15 19 19 39 6 -1.03 49 0 0 19 21 15 10 39 18.8 33 139 44 19 14 42 19 27 49 19 9 24 19 33 9 -1.03 50 0 0 19 15 59 10 39 21.9 34 140 43 19 9 26 19 22 32 19 4 8 19 27 52 -1.03 51 0 0 19 11 23 10 39 25.0 35 140 42 19 4 51 19 17 56 18 59 33 19 23 16 -1.03 52 0 0 19 7 28 10 39 28.2 35 141 42 19 0 56 19 14 1 18 55 38 19 19 20 -1.03 53 0 0 19 4 13 10 39 31.4 36 142 41 18 57 42 19 10 46 18 52 24 19 16 5 -1.03 54 0 0 19 1 39 10 39 34.7 37 143 40 18 55 8 19 8 12 18 49 51 19 13 31 -1.03 55 0 0 18 59 46 10 39 38.0 37 144 39 18 53 14 19 6 18 18 47 57 19 11 37 -1.03 56 0 0 18 58 33 10 39 41.4 38 145 39 18 52 2 19 5 5 18 46 45 19 10 24 -1.03 57 0 0 18 58 1 10 39 44.8 38 146 38 18 51 29 19 4 33 18 46 12 19 9 52 -1.03 58 0 0 18 58 9 10 39 48.3 39 147 37 18 51 38 19 4 42 18 46 21 19 10 0 -1.03 59 0 0 18 58 59 10 39 51.8 39 148 36 18 52 27 19 5 31 18 47 10 19 10 50 -1.03 60 0 0 19 0 29 10 39 55.3 40 149 36 18 53 57 19 7 1 18 48 40 19 12 20 -1.03 61 0 0 19 2 40 10 39 58.9 40 150 35 18 56 8 19 9 12 18 50 51 19 14 32 -1.04 62 0 0 19 5 31 10 40 2.5 41 151 34 18 58 59 19 12 4 18 53 42 19 17 24 -1.04 63 0 0 19 9 4 10 40 6.1 41 152 33 19 2 31 19 15 37 18 57 13 19 20 56 -1.04 64 0 0 19 13 17 10 40 9.8 42 153 32 19 6 44 19 19 50 19 1 26 19 25 10 -1.04 65 0 0 19 18 10 10 40 13.5 42 154 31 19 11 37 19 24 44 19 6 19 19 30 5 -1.04 66 0 0 19 23 45 10 40 17.2 42 155 30 19 17 11 19 30 19 19 11 52 19 35 40 -1.04 67 0 0 19 30 0 10 40 20.9 43 157 30 19 23 26 19 36 35 19 18 7 19 41 56 -1.04 68 0 0 19 36 56 10 40 24.7 43 158 29 19 30 21 19 43 31 19 25 1 19 48 53 -1.04 69 0 0 19 44 32 10 40 28.5 43 159 28 19 37 57 19 51 8 19 32 37 19 56 30 -1.04 70 0 0 19 52 49 10 40 32.3 43 160 27 19 46 13 19 59 26 19 40 52 20 4 48 -1.04 71 0 0 20 1 46 10 40 36.1 43 161 26 19 55 10 20 8 24 19 49 48 20 13 47 -1.04 72 0 0 20 11 24 10 40 40.0 44 163 25 20 4 47 20 18 2 19 59 25 20 23 26 -1.04 73 0 0 20 21 42 10 40 43.8 44 164 24 20 15 4 20 28 21 20 9 41 20 33 46 -1.04 74 0 0 20 32 41 10 40 47.7 44 165 23 20 26 1 20 39 21 20 20 38 20 44 46 -1.04 75 0 0 20 44 19 10 40 51.6 44 167 22 20 37 39 20 51 0 20 32 15 20 56 26 -1.04 76 0 0 20 56 38 10 40 55.4 44 168 21 20 49 56 21 3 19 20 44 32 21 8 46 -1.04 77 0 0 21 9 36 10 40 59.3 44 169 20 21 2 54 21 16 19 20 57 28 21 21 47 -1.04 78 0 0 21 23 14 10 41 3.2 44 170 19 21 16 31 21 29 58 21 11 4 21 35 27 -1.04 79 0 0 21 37 32 10 41 7.1 44 172 18 21 30 48 21 44 17 21 25 20 21 49 47 -1.04 80 0 0 21 52 29 10 41 11.0 44 173 17 21 45 44 21 59 16 21 40 15 22 4 46 -1.04 81 0 0 22 8 6 10 41 14.9 43 174 16 22 1 19 22 14 54 21 55 50 22 20 25 -1.04 82 0 0 22 24 22 10 41 18.7 43 176 16 22 17 34 22 31 11 22 12 3 22 36 43 -1.04 83 0 0 22 41 17 10 41 22.6 43 177 15 22 34 27 22 48 7 22 28 55 22 53 40 -1.04 84 0 0 22 58 50 10 41 26.4 43 178 14 22 51 59 23 5 42 22 46 26 23 11 16 -1.04 85 0 0 23 17 1 10 41 30.3 42 179 13 23 10 9 23 23 55 23 4 35 23 29 31 -1.04 86 0 0 23 35 51 10 41 34.1 42 181 12 23 28 58 23 42 46 23 23 23 23 48 23 -1.04 87 0 0 23 55 19 10 41 37.9 42 182 11 23 48 24 24 2 15 23 42 48 24 7 54 -1.04 88 0 0 24 15 25 10 41 41.6 41 183 10 24 8 28 24 22 22 24 2 50 24 28 2 -1.04 89 0 0 24 36 7 10 41 45.4 41 184 9 24 29 8 24 43 7 24 23 30 24 48 48 -1.04 90 0 0 24 57 26 10 41 49.1 41 186 8 24 50 26 25 4 28 24 44 46 25 10 10 -1.04 91 0 0 25 19 22 10 41 52.8 40 187 7 25 12 20 25 26 25 25 6 39 25 32 9 -1.04 92 0 0 25 41 54 10 41 56.5 40 188 6 25 34 50 25 48 59 25 29 7 25 54 44 -1.04 93 0 0 26 5 2 10 42 0.1 39 189 5 25 57 56 26 12 8 25 52 12 26 17 55 -1.04 94 0 0 26 28 45 10 42 3.7 39 190 4 26 21 37 26 35 53 26 15 51 26 41 42 -1.04 95 0 0 26 53 2 10 42 7.2 38 191 3 26 45 53 27 0 13 26 40 6 27 6 3 -1.04 96 0 0 27 17 54 10 42 10.7 37 192 2 27 10 43 27 25 6 27 4 54 27 30 58 -1.04 97 0 0 27 43 19 10 42 14.2 37 193 1 27 36 6 27 50 33 27 30 15 27 56 26 -1.04 98 0 0 28 9 17 10 42 17.6 36 194 0 28 2 2 28 16 33 27 56 10 28 22 28 -1.04 99 0 0 28 35 48 10 42 21.0 36 195 -1 28 28 31 28 43 6 28 22 37 28 49 3 -1.04 100 0 0 29 2 50 10 42 24.3 35 196 -2 28 55 31 29 10 11 28 49 35 29 16 9 -1.04 101 0 0 29 30 24 10 42 27.5 34 197 -3 29 23 2 29 37 46 29 17 5 29 43 46 -1.04 102 0 0 29 58 28 10 42 30.7 33 198 -4 29 51 4 30 5 53 29 45 5 30 11 54 -1.04 103 0 0 30 27 2 10 42 33.8 33 199 -5 30 19 36 30 34 29 30 13 35 30 40 32 -1.04 104 0 0 30 56 4 10 42 36.9 32 200 -6 30 48 36 31 3 33 30 42 34 31 9 39 -1.04 105 0 0 31 25 35 10 42 39.9 31 201 -7 31 18 5 31 33 6 31 12 0 31 39 13 -1.04 106 0 0 31 55 32 10 42 42.8 30 202 -8 31 48 0 32 3 6 31 41 54 32 9 15 -1.04 107 0 0 32 25 56 10 42 45.7 30 203 -9 32 18 21 32 33 32 32 12 13 32 39 43 -1.04 108 0 0 32 56 45 10 42 48.5 29 204 -10 32 49 8 33 4 23 32 42 58 33 10 36 -1.04 109 0 0 33 27 58 10 42 51.2 28 205 -11 33 20 19 33 35 39 33 14 7 33 41 53 -1.04 110 0 0 33 59 35 10 42 53.9 27 206 -12 33 51 53 34 7 18 33 45 40 34 13 34 -1.04 111 0 0 34 31 34 10 42 56.4 26 206 -13 34 23 50 34 39 19 34 17 35 34 45 37 -1.04 112 0 0 35 3 54 10 42 58.9 25 207 -13 34 56 8 35 11 41 34 49 50 35 18 2 -1.04 113 0 0 35 36 34 10 43 1.3 25 208 -14 35 28 45 35 44 24 35 22 26 35 50 46 -1.04 114 0 0 36 9 33 10 43 3.7 24 209 -15 36 1 42 36 17 25 35 55 21 36 23 49 -1.04 115 0 0 36 42 50 10 43 5.9 23 210 -16 36 34 56 36 50 44 36 28 34 36 57 10 -1.04 116 0 0 37 16 23 10 43 8.0 22 210 -17 37 8 27 37 24 20 37 2 3 37 30 47 -1.04 117 0 0 37 50 11 10 43 10.1 21 211 -18 37 42 13 37 58 10 37 35 47 38 4 40 -1.04 118 0 0 38 24 13 10 43 12.1 20 212 -19 38 16 13 38 32 15 38 9 45 38 38 46 -1.04 119 0 0 38 58 28 10 43 14.0 19 213 -19 38 50 26 39 6 32 38 43 56 39 13 6 -1.04 120 0 0 39 32 55 10 43 15.8 18 213 -20 39 24 50 39 41 1 39 18 18 39 47 36 -1.04 121 0 0 40 7 31 10 43 17.5 17 214 -21 39 59 24 40 15 39 39 52 51 40 22 16 -1.05 122 0 0 40 42 16 10 43 19.1 17 215 -22 40 34 7 40 50 26 40 27 32 40 57 5 -1.05 123 0 0 41 17 8 10 43 20.6 16 216 -23 41 8 57 41 25 20 41 2 20 41 32 1 -1.05 124 0 0 41 52 6 10 43 22.0 15 216 -23 41 43 53 42 0 20 41 37 14 42 7 2 -1.05 125 0 0 42 27 8 10 43 23.4 14 217 -24 42 18 53 42 35 24 42 12 12 42 42 8 -1.05 126 0 0 43 2 13 10 43 24.6 13 218 -25 42 53 56 43 10 31 42 47 14 43 17 17 -1.05 127 0 0 43 37 19 10 43 25.8 12 219 -25 43 29 0 43 45 40 43 22 17 43 52 27 -1.05 128 0 0 44 12 26 10 43 26.8 11 219 -26 44 4 5 44 20 48 43 57 20 44 27 37 -1.05 129 0 0 44 47 31 10 43 27.8 10 220 -27 44 39 8 44 55 55 44 32 22 45 2 45 -1.05 130 0 0 45 22 33 10 43 28.7 9 221 -27 45 14 9 45 30 59 45 7 21 45 37 50 -1.06 131 0 0 45 57 31 10 43 29.5 8 222 -28 45 49 5 46 5 58 45 42 16 46 12 51 -1.06 132 0 0 46 32 23 10 43 30.2 7 222 -29 46 23 55 46 40 52 46 17 5 46 47 46 -1.06 133 0 0 47 7 8 10 43 30.8 7 223 -29 46 58 39 47 15 38 46 51 47 47 22 33 -1.06 134 0 0 47 41 44 10 43 31.4 6 224 -30 47 33 14 47 50 16 47 26 21 47 57 12 -1.07 135 0 0 48 16 10 10 43 31.8 5 225 -30 48 7 39 48 24 43 48 0 45 48 31 41 -1.07 136 0 0 48 50 25 10 43 32.2 4 225 -31 48 41 53 48 58 59 48 34 58 49 5 58 -1.08 137 0 0 49 24 28 10 43 32.5 3 226 -31 49 15 54 49 33 3 49 8 59 49 40 2 -1.09 138 0 0 49 58 16 10 43 32.7 2 227 -32 49 49 41 50 6 52 49 42 45 50 13 53 -1.11 139 0 0 50 31 49 10 43 32.9 1 228 -32 50 23 14 50 40 27 50 16 17 50 47 28 -1.16 140 0 0 51 5 6 10 43 33.0 1 228 -33 50 56 30 51 13 44 50 49 33 51 20 46 -1.35 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 6873-00418-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 58 52.0163 DE: -24 21 49.043 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 58 52.0160 DE: -24 21 49.043 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.5 * B mag [mag]: 11.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2928) Epstein asteroid class: approx. diameter [km]: 17 approx. diameter ["]: 0.007 distance from Earth [AU]: 3.46770 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 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): 0.013", 0.003", 73.858° remarks: * orbital elements for (2928)Epstein : Mean anomaly = 194.0727020267 deg Arg. of pericenter = 157.0670410838 deg Long. of node = 310.3092229702 deg Inclination = 9.5418251111 deg Eccentricity = 0.0656585602 Semimajor axis = 3.0070858848 AU Perihelion dist = 2.8096449551 AU Mag: H = 11.69, G = 0.15 Epoch of elements : MJD 60613.44508245 TDT (2024 Oct 30.4451) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Apr24,0.60,2024,10,30,10.681987,-0.157386,0.702910,15.358760,3.452893,0.005433,0.000498,-0.000001,0.000000 85.6206,-24.3310,15.68,-14.02,False TYC 6873-00418-1,18.98111566,-24.3636231,11.87,11.50,11.30,0.0,0,,19.00614184,-24.3310427,6.30,6.05,0,0,0 2928,Epstein,17.80,16.672,3.4677,0,0,2.850,8.76,,1.8,0 0,193.9886,2024,10,30,157.0670,310.3092,9.5418,0.06566,3.00709,2.80964,11.69,5.0,0.15 1.406,0.0127,0.0026,74,0.0027,Known errors,0.83,0,-1,-1 20241030_0418-1,60140.67 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:03 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org