IOTA/IOTA-ES occultation update for (1528) Conrada / TYC 5830-00962-1 event on 2024 Sep 06, 14:09 UT Visible from Summary ------- On 2024 Sep 06 UT, the 11.714550758753 km diameter asteroid (1528) Conrada will occult a 9.1 mag star in the constellation Aquarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.41 mag to 15.47 mag (the magnitude of the asteroid) for at most 0.920 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: 79 * date and approx. time of event: 2024 Sep 06, 14:03 - 2024 Sep 06, 14:15 * geocentric midpoint of event [JD]: 2460560.08989162 * magnitude of target star: 9.06 * magnitude drop [mag]: 6.41 * estimated maximum duration [s]: 0.920 * Moon: 11 % sunlit, 150° distance * Sun: 168° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 18 * 1 sigma uncertainty interval [path widths]: +/- 0.69 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.016, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.017", 0.004", 73°) * approx speed of asteroid's shadow [km/s]: 12.8063 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5830-00962-1 by 1528 Conrada on 2024 Sep 6 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 70 0 0 13 2 45 14 14 59.2 0 99 -12 13 7 38 12 57 52 13 14 21 12 51 10 .... 71 0 0 12 54 21 14 14 59.0 1 99 -13 12 59 14 12 49 29 13 5 56 12 42 49 -0.68 72 0 0 12 46 53 14 14 58.6 2 99 -14 12 51 45 12 42 1 12 58 26 12 35 22 -0.87 73 0 0 12 40 19 14 14 58.0 3 100 -15 12 45 11 12 35 29 12 51 51 12 28 50 -0.94 74 0 0 12 34 40 14 14 57.1 4 100 -16 12 39 31 12 29 50 12 46 11 12 23 12 -0.98 75 0 0 12 29 56 14 14 56.1 5 100 -17 12 34 46 12 25 6 12 41 25 12 18 29 -1.01 76 0 0 12 26 5 14 14 54.8 6 100 -18 12 30 55 12 21 15 12 37 33 12 14 39 -1.03 77 0 0 12 23 8 14 14 53.3 7 101 -19 12 27 57 12 18 19 12 34 35 12 11 43 -1.04 78 0 0 12 21 5 14 14 51.6 8 101 -20 12 25 54 12 16 16 12 32 32 12 9 40 -1.05 79 0 0 12 19 55 14 14 49.7 9 101 -21 12 24 44 12 15 6 12 31 22 12 8 31 -1.06 80 0 0 12 19 39 14 14 47.6 10 101 -22 12 24 28 12 14 50 12 31 5 12 8 15 -1.06 81 0 0 12 20 16 14 14 45.3 11 102 -23 12 25 5 12 15 27 12 31 42 12 8 52 -1.07 82 0 0 12 21 46 14 14 42.8 12 102 -24 12 26 35 12 16 57 12 33 12 12 10 22 -1.07 83 0 0 12 24 9 14 14 40.0 13 102 -25 12 28 58 12 19 20 12 35 35 12 12 45 -1.07 84 0 0 12 27 24 14 14 37.1 14 102 -26 12 32 13 12 22 36 12 38 51 12 16 0 -1.08 85 0 0 12 31 33 14 14 34.0 15 103 -27 12 36 22 12 26 44 12 43 0 12 20 8 -1.08 86 0 0 12 36 34 14 14 30.7 16 103 -28 12 41 24 12 31 45 12 48 2 12 25 9 -1.08 87 0 0 12 42 28 14 14 27.2 17 103 -29 12 47 18 12 37 38 12 53 56 12 31 2 -1.08 88 0 0 12 49 14 14 14 23.5 18 104 -29 12 54 4 12 44 24 13 0 44 12 37 47 -1.08 89 0 0 12 56 53 14 14 19.6 18 104 -30 13 1 44 12 52 3 13 8 24 12 45 25 -1.08 90 0 0 13 5 25 14 14 15.5 19 104 -31 13 10 16 13 0 34 13 16 56 12 53 55 -1.09 91 0 0 13 14 49 14 14 11.3 20 105 -32 13 19 41 13 9 57 13 26 22 13 3 18 -1.09 92 0 0 13 25 5 14 14 6.8 21 105 -33 13 29 58 13 20 13 13 36 40 13 13 33 -1.09 93 0 0 13 36 14 14 14 2.2 22 105 -34 13 41 8 13 31 21 13 47 51 13 24 40 -1.09 94 0 0 13 48 16 14 13 57.3 23 106 -35 13 53 10 13 43 22 13 59 54 13 36 40 -1.09 95 0 0 14 1 10 14 13 52.3 24 106 -35 14 6 5 13 56 15 14 12 50 13 49 32 -1.09 96 0 0 14 14 56 14 13 47.1 25 107 -36 14 19 52 14 10 1 14 26 39 14 3 16 -1.09 97 0 0 14 29 36 14 13 41.8 25 107 -37 14 34 33 14 24 39 14 41 21 14 17 53 -1.09 98 0 0 14 45 7 14 13 36.2 26 108 -38 14 50 5 14 40 10 14 56 55 14 33 22 -1.09 99 0 0 15 1 32 14 13 30.5 27 108 -39 15 6 31 14 56 33 15 13 23 14 49 44 -1.09 100 0 0 15 18 49 14 13 24.6 28 109 -40 15 23 50 15 13 49 15 30 43 15 6 58 -1.09 101 0 0 15 36 59 14 13 18.5 29 109 -40 15 42 1 15 31 58 15 48 56 15 25 5 -1.09 102 0 0 15 56 2 14 13 12.3 29 110 -41 16 1 5 15 50 59 16 8 2 15 44 5 -1.09 103 0 0 16 15 58 14 13 5.8 30 110 -42 16 21 3 16 10 54 16 28 1 16 3 57 -1.09 104 0 0 16 36 47 14 12 59.3 31 111 -42 16 41 53 16 31 41 16 48 54 16 24 42 -1.09 105 0 0 16 58 28 14 12 52.5 32 112 -43 17 3 36 16 53 21 17 10 39 16 46 20 -1.09 106 0 0 17 21 3 14 12 45.6 32 113 -44 17 26 12 17 15 54 17 33 18 17 8 51 -1.10 107 0 0 17 44 31 14 12 38.6 33 113 -44 17 49 42 17 39 20 17 56 50 17 32 15 -1.10 108 0 0 18 8 52 14 12 31.3 34 114 -45 18 14 5 18 3 39 18 21 16 17 56 31 -1.10 109 0 0 18 34 6 14 12 24.0 34 115 -46 18 39 21 18 28 52 18 46 35 18 21 41 -1.10 110 0 0 19 0 14 14 12 16.4 35 116 -46 19 5 31 18 54 57 19 12 47 18 47 44 -1.10 111 0 0 19 27 14 14 12 8.8 36 117 -47 19 32 34 19 21 56 19 39 53 19 14 39 -1.10 112 0 0 19 55 8 14 12 0.9 36 118 -47 20 0 30 19 49 48 20 7 52 19 42 28 -1.10 113 0 0 20 23 56 14 11 53.0 37 119 -48 20 29 19 20 18 33 20 36 45 20 11 10 -1.10 114 0 0 20 53 36 14 11 44.9 37 120 -48 20 59 2 20 48 11 21 6 31 20 40 45 -1.10 115 0 0 21 24 10 14 11 36.7 38 121 -49 21 29 39 21 18 42 21 37 11 21 11 13 -1.10 116 0 0 21 55 37 14 11 28.3 38 122 -49 22 1 8 21 50 7 22 8 44 21 42 34 -1.10 117 0 0 22 27 57 14 11 19.8 39 123 -49 22 33 31 22 22 24 22 41 11 22 14 48 -1.10 118 0 0 23 1 10 14 11 11.2 39 124 -50 23 6 47 22 55 34 23 14 30 22 47 55 -1.10 119 0 0 23 35 17 14 11 2.5 40 125 -50 23 40 56 23 29 38 23 48 43 23 21 54 -1.10 120 0 0 24 10 16 14 10 53.7 40 126 -50 24 15 58 24 4 34 24 23 49 23 56 46 -1.11 121 0 0 24 46 7 14 10 44.8 40 128 -50 24 51 53 24 40 22 24 59 48 24 32 30 -1.11 122 0 0 25 22 51 14 10 35.7 41 129 -50 25 28 40 25 17 3 25 36 40 25 9 6 -1.11 123 0 0 26 0 27 14 10 26.6 41 130 -50 26 6 19 25 54 35 26 14 24 25 46 35 -1.11 124 0 0 26 38 55 14 10 17.4 41 131 -50 26 44 50 26 33 0 26 53 0 26 24 54 -1.11 125 0 0 27 18 14 14 10 8.2 41 133 -50 27 24 13 27 12 16 27 32 28 27 4 5 -1.11 126 0 0 27 58 25 14 9 58.8 42 134 -50 28 4 28 27 52 22 28 12 47 27 44 7 -1.11 127 0 0 28 39 26 14 9 49.4 42 136 -50 28 45 33 28 33 20 28 53 57 28 24 59 -1.11 128 0 0 29 21 17 14 9 39.9 42 137 -50 29 27 28 29 15 7 29 35 58 29 6 42 -1.12 129 0 0 30 3 58 14 9 30.4 42 139 -50 30 10 13 29 57 45 30 18 49 29 49 13 -1.12 130 0 0 30 47 28 14 9 20.9 42 140 -50 30 53 48 30 41 10 31 2 29 30 32 34 -1.12 131 0 0 31 31 47 14 9 11.3 42 141 -49 31 38 10 31 25 25 31 46 58 31 16 42 -1.12 132 0 0 32 16 53 14 9 1.7 42 143 -49 32 23 21 32 10 27 32 32 15 32 1 38 -1.12 133 0 0 33 2 46 14 8 52.1 42 144 -49 33 9 18 32 56 14 33 18 19 32 47 19 -1.12 134 0 0 33 49 24 14 8 42.4 41 146 -48 33 56 2 33 42 48 34 5 9 33 33 47 -1.12 135 0 0 34 36 48 14 8 32.8 41 147 -48 34 43 30 34 30 7 34 52 44 34 20 59 -1.12 136 0 0 35 24 55 14 8 23.2 41 149 -47 35 31 42 35 18 9 35 41 3 35 8 54 -1.13 137 0 0 36 13 45 14 8 13.7 41 150 -47 36 20 37 36 6 54 36 30 5 35 57 32 -1.13 138 0 0 37 3 16 14 8 4.2 40 152 -46 37 10 14 36 56 19 37 19 49 36 46 50 -1.13 139 0 0 37 53 26 14 7 54.7 40 153 -45 38 0 30 37 46 25 38 10 13 37 36 48 -1.13 140 0 0 38 44 15 14 7 45.3 39 155 -45 38 51 24 38 37 8 39 1 15 38 27 24 -1.13 141 0 0 39 35 41 14 7 35.9 39 156 -44 39 42 56 39 28 28 39 52 55 39 18 36 -1.13 142 0 0 40 27 41 14 7 26.7 38 158 -43 40 35 2 40 20 22 40 45 10 40 10 22 -1.13 143 0 0 41 20 15 14 7 17.6 38 159 -42 41 27 42 41 12 50 41 37 58 41 2 42 -1.14 144 0 0 42 13 19 14 7 8.5 37 161 -42 42 20 52 42 5 48 42 31 17 41 55 32 -1.14 145 0 0 43 6 51 14 6 59.6 37 162 -41 43 14 30 42 59 13 43 25 4 42 48 48 -1.14 146 0 0 44 0 49 14 6 50.8 36 163 -40 44 8 35 43 53 5 44 19 18 43 42 32 -1.14 147 0 0 44 55 11 14 6 42.2 35 165 -39 45 3 4 44 47 20 45 13 55 44 36 38 -1.14 148 0 0 45 49 54 14 6 33.7 35 166 -38 45 57 53 45 41 57 46 8 54 45 31 5 -1.14 149 0 0 46 44 55 14 6 25.4 34 167 -37 46 53 1 46 36 51 47 4 11 46 25 50 -1.14 150 0 0 47 40 10 14 6 17.3 33 168 -36 47 48 23 47 31 59 47 59 43 47 20 50 -1.15 151 0 0 48 35 37 14 6 9.3 32 170 -35 48 43 57 48 27 20 48 55 27 48 16 1 -1.15 152 0 0 49 31 13 14 6 1.6 32 171 -34 49 39 40 49 22 48 49 51 19 49 11 20 -1.15 153 0 0 50 26 53 14 5 54.1 31 172 -33 50 35 27 50 18 21 50 47 16 50 6 43 -1.15 154 0 0 51 22 34 14 5 46.8 30 173 -32 51 31 15 51 13 55 51 43 14 51 2 8 -1.15 155 0 0 52 18 12 14 5 39.7 29 174 -31 52 27 0 52 9 26 52 39 9 51 57 30 -1.15 156 0 0 53 13 43 14 5 32.9 28 176 -30 53 22 38 53 4 51 53 34 57 52 52 45 -1.15 157 0 0 54 9 3 14 5 26.3 27 177 -29 54 18 5 54 0 4 54 30 33 53 47 49 -1.15 158 0 0 55 4 7 14 5 20.0 26 178 -28 55 13 16 54 55 2 55 25 54 54 42 38 -1.15 159 0 0 55 58 53 14 5 13.9 25 179 -27 56 8 8 55 49 41 56 20 56 55 37 8 -1.15 160 0 0 56 53 14 14 5 8.1 25 180 -26 57 2 36 56 43 55 57 15 32 56 31 14 -1.16 161 0 0 57 47 6 14 5 2.6 24 181 -25 57 56 34 57 37 42 58 9 39 57 24 53 -1.16 162 0 0 58 40 26 14 4 57.3 23 182 -24 58 50 0 58 30 55 59 3 13 58 17 58 -1.16 163 0 0 59 33 7 14 4 52.4 22 183 -23 59 42 47 59 23 32 59 56 8 59 10 27 -1.16 164 0 0 60 25 7 14 4 47.6 21 184 -22 60 34 52 60 15 26 60 48 21 60 2 15 -1.16 165 0 0 61 16 21 14 4 43.2 20 185 -21 61 26 10 61 6 35 61 39 45 60 53 18 -1.16 166 0 0 62 6 43 14 4 39.0 19 186 -21 62 16 37 61 56 53 62 30 19 61 43 30 -1.16 167 0 0 62 56 12 14 4 35.0 18 187 -20 63 6 9 62 46 18 63 19 56 62 32 50 -1.16 168 0 0 63 44 41 14 4 31.4 17 188 -19 63 54 42 63 34 44 64 8 34 63 21 12 -1.16 169 0 0 64 32 9 14 4 27.9 17 189 -18 64 42 13 64 22 10 64 56 8 64 8 34 -1.16 170 0 0 65 18 32 14 4 24.8 16 190 -17 65 28 38 65 8 30 65 42 36 64 54 51 -1.16 171 0 0 66 3 46 14 4 21.8 15 191 -16 66 13 54 65 53 43 66 27 54 65 40 2 -1.16 172 0 0 66 47 50 14 4 19.1 14 192 -15 66 57 58 66 37 46 67 12 0 66 24 4 -1.16 173 0 0 67 30 41 14 4 16.6 13 193 -14 67 40 49 67 20 36 67 54 51 67 6 54 -1.16 174 0 0 68 12 16 14 4 14.3 13 194 -14 68 22 24 68 2 12 68 36 26 67 48 31 -1.16 175 0 0 68 52 36 14 4 12.2 12 195 -13 69 2 43 68 42 33 69 16 43 68 28 52 -1.16 176 0 0 69 31 38 14 4 10.3 11 196 -12 69 41 43 69 21 37 69 55 41 69 7 58 -1.16 177 0 0 70 9 22 14 4 8.5 10 197 -11 70 19 25 69 59 23 70 33 19 69 45 48 -1.16 178 0 0 70 45 48 14 4 7.0 10 198 -11 70 55 48 70 35 51 71 9 38 70 22 20 -1.16 179 0 0 71 20 55 14 4 5.5 9 199 -10 71 30 52 71 11 2 71 44 37 70 57 36 -1.16 180 0 0 71 54 45 14 4 4.3 8 200 -9 72 4 38 71 44 56 72 18 17 71 31 35 -1.16 -179 0 0 72 27 18 14 4 3.1 8 201 -9 72 37 6 72 17 34 72 50 39 72 4 18 -1.16 -178 0 0 72 58 35 14 4 2.1 7 202 -8 73 8 18 72 48 56 73 21 45 72 35 46 -1.16 -177 0 0 73 28 38 14 4 1.2 7 203 -8 73 38 16 73 19 4 73 51 34 73 6 1 -1.16 -176 0 0 73 57 28 14 4 0.4 6 204 -7 74 7 0 73 47 59 74 20 11 73 35 4 -1.16 -175 0 0 74 25 6 14 3 59.7 6 205 -7 74 34 32 74 15 43 74 47 34 74 2 57 -1.16 -174 0 0 74 51 35 14 3 59.1 5 206 -6 75 0 55 74 42 19 75 13 49 74 29 40 -1.16 -173 0 0 75 16 57 14 3 58.5 5 207 -6 75 26 11 75 7 47 75 38 55 74 55 18 -1.16 -172 0 0 75 41 15 14 3 58.1 4 208 -5 75 50 21 75 32 11 76 2 56 75 19 50 -1.16 -171 0 0 76 4 29 14 3 57.7 4 208 -5 76 13 29 75 55 32 76 25 54 75 43 20 -1.16 -170 0 0 76 26 43 14 3 57.4 3 209 -4 76 35 35 76 17 53 76 47 51 76 5 51 -1.16 -169 0 0 76 47 58 14 3 57.1 3 210 -4 76 56 44 76 39 16 77 8 49 76 27 22 -1.16 -168 0 0 77 8 18 14 3 56.8 2 211 -3 77 16 56 76 59 42 77 28 52 76 47 59 -1.16 -167 0 0 77 27 44 14 3 56.7 2 212 -3 77 36 15 77 19 15 77 48 1 77 7 41 -1.16 -166 0 0 77 46 19 14 3 56.5 2 213 -3 77 54 43 77 37 57 78 6 18 77 26 32 -1.16 -165 0 0 78 4 4 14 3 56.4 1 214 -2 78 12 21 77 55 49 78 23 47 77 44 34 -1.17 -164 0 0 78 21 3 14 3 56.3 1 215 -2 78 29 13 78 12 55 78 40 28 78 1 49 -1.17 -163 0 0 78 37 16 14 3 56.3 1 216 -2 78 45 19 78 29 15 78 56 25 78 18 19 -1.18 -162 0 0 78 52 47 14 3 56.2 0 217 -1 79 0 43 78 44 53 .. .. .. 78 34 6 -1.23 -161 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 78 49 11 .... Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.5 Data for the target star ------------------------ * name: TYC 5830-00962-1 * constellation : Aquarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 23 48 31.0043 DE: -08 49 43.985 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 23 48 31.0044 DE: -08 49 43.985 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.1 * B mag [mag]: 9.6 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1528) Conrada asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.009 distance from Earth [AU]: 1.71590 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 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): 0.017", 0.004", 72.766° remarks: * orbital elements for (1528)Conrada : Mean anomaly = 143.5349016849 deg Arg. of pericenter = 59.0521992270 deg Long. of node = 139.3458346893 deg Inclination = 8.5195723766 deg Eccentricity = 0.1450775765 Semimajor axis = 2.4133332009 AU Perihelion dist = 2.0632126689 AU Mag: H = 11.74, G = 0.15 Epoch of elements : MJD 60559.58989162 TDT (2024 Sep 06.5899) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#532023Apr24,0.92,2024,9,6,14.157399,-0.425739,0.610130,-5.927961,-4.136038,-0.001127,0.000245,0.000001,0.000001 158.9307,-8.6896,-32.82,6.11,False TYC 5830-00962-1,23.80861231,-8.8288846,9.57,9.06,8.78,0.1,0,,23.83009812,-8.6896358,6.41,6.24,0,0,0 1528,Conrada,15.47,11.839,1.7159,0,0,-2.049,-21.20,,1.4,0 0,143.3798,2024,9,6,59.0522,139.3458,8.5196,0.14508,2.41333,2.06321,11.74,5.0,0.15 1.686,0.0167,0.0043,73,0.0065,Known errors,0.95,0,-1,-1 20240906_0962-1,60140.54 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 13:04 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org