IOTA/IOTA-ES occultation update for (952) Caia / TYC 7462-00733-1 event on 2024 Aug 14, 15:56 UT Visible from Summary ------- On 2024 Aug 14 UT, the 88.246 km diameter asteroid (952) Caia will occult a 11.3 mag star in the constellation Microscopium for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 1.85 mag to 12.93 mag (the magnitude of the asteroid) for at most 9.350 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 Aug 14, 15:47 - 2024 Aug 14, 16:05 * geocentric midpoint of event [JD]: 2460537.16419346 * magnitude of target star: 11.30 * magnitude drop [mag]: 1.85 * estimated maximum duration [s]: 9.350 * Moon: 70 % sunlit, 51° distance * Sun: 159° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 118 * 1 sigma uncertainty interval [path widths]: +/- 0.10 * 1 sigma uncertainty interval [seconds]: +/- 3.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.026, +/- 0.009) * 1 sigma uncertainty ellipse (major, minor, PA): (0.027", 0.002", 72°) * approx speed of asteroid's shadow [km/s]: 9.4414 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 7462-00733-1 by 952 Caia on 2024 Aug 14 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 44 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 32 45 15 .. .. .. 32 36 41 .... 45 0 0 32 45 5 16 4 51.0 1 130 -5 33 27 51 32 2 57 33 36 37 31 54 27 .... 46 0 0 32 2 53 16 4 50.7 2 131 -6 32 45 20 31 21 2 32 54 3 31 12 35 -0.49 47 0 0 31 21 5 16 4 50.0 3 131 -7 32 3 14 30 39 31 32 11 53 30 31 8 -0.66 48 0 0 30 39 42 16 4 49.0 4 132 -8 31 21 33 29 58 26 31 30 9 29 50 6 -0.73 49 0 0 29 58 47 16 4 47.7 5 132 -9 30 40 20 29 17 48 30 48 52 29 9 32 -0.77 50 0 0 29 18 21 16 4 46.0 6 133 -10 29 59 36 28 37 39 30 8 4 28 29 26 -0.80 51 0 0 28 38 24 16 4 44.0 7 133 -11 29 19 21 27 58 0 29 27 46 27 49 50 -0.82 52 0 0 27 58 59 16 4 41.8 8 134 -12 28 39 38 27 18 51 28 47 59 27 10 45 -0.83 53 0 0 27 20 6 16 4 39.1 9 134 -13 28 0 28 26 40 15 28 8 45 26 32 12 -0.84 54 0 0 26 41 46 16 4 36.2 10 135 -14 27 21 50 26 2 12 27 30 4 25 54 12 -0.85 55 0 0 26 4 0 16 4 33.0 12 135 -15 26 43 48 25 24 43 26 51 58 25 16 46 -0.86 56 0 0 25 26 50 16 4 29.4 13 136 -16 26 6 21 24 47 48 26 14 27 24 39 55 -0.86 57 0 0 24 50 15 16 4 25.6 14 136 -17 25 29 29 24 11 30 25 37 32 24 3 40 -0.87 58 0 0 24 14 17 16 4 21.5 15 137 -18 24 53 15 23 35 48 25 1 15 23 28 1 -0.87 59 0 0 23 38 57 16 4 17.1 16 137 -19 24 17 39 23 0 43 24 25 35 22 52 59 -0.87 60 0 0 23 4 15 16 4 12.4 17 138 -21 23 42 42 22 26 16 23 50 34 22 18 36 -0.88 61 0 0 22 30 12 16 4 7.4 18 138 -22 23 8 23 21 52 28 23 16 12 21 44 51 -0.88 62 0 0 21 56 48 16 4 2.2 19 139 -23 22 34 44 21 19 19 22 42 30 21 11 44 -0.88 63 0 0 21 24 4 16 3 56.7 20 139 -24 22 1 44 20 46 49 22 9 28 20 39 17 -0.88 64 0 0 20 52 0 16 3 50.9 21 140 -25 21 29 26 20 14 59 21 37 6 20 7 30 -0.88 65 0 0 20 20 37 16 3 44.9 22 140 -26 20 57 48 19 43 50 21 5 26 19 36 23 -0.88 66 0 0 19 49 54 16 3 38.7 23 141 -27 20 26 52 19 13 21 20 34 26 19 5 57 -0.89 67 0 0 19 19 53 16 3 32.2 24 141 -28 19 56 37 18 43 32 20 4 9 18 36 11 -0.89 68 0 0 18 50 33 16 3 25.5 25 142 -29 19 27 4 18 14 26 19 34 33 18 7 7 -0.89 69 0 0 18 21 55 16 3 18.5 26 142 -30 18 58 13 17 46 0 19 5 39 17 38 44 -0.89 70 0 0 17 53 59 16 3 11.4 27 143 -31 18 30 4 17 18 16 18 37 28 17 11 3 -0.89 71 0 0 17 26 45 16 3 4.0 27 143 -32 18 2 38 16 51 14 18 9 59 16 44 3 -0.89 72 0 0 17 0 13 16 2 56.5 28 144 -33 17 35 54 16 24 54 17 43 13 16 17 45 -0.89 73 0 0 16 34 24 16 2 48.7 29 144 -34 17 9 54 15 59 16 17 17 10 15 52 9 -0.89 74 0 0 16 9 17 16 2 40.8 30 145 -35 16 44 35 15 34 20 16 51 49 15 27 15 -0.89 75 0 0 15 44 53 16 2 32.7 31 145 -36 16 20 0 15 10 6 16 27 12 15 3 3 -0.89 76 0 0 15 21 11 16 2 24.4 32 146 -37 15 56 8 14 46 34 16 3 17 14 39 34 -0.89 77 0 0 14 58 12 16 2 15.9 33 147 -38 15 32 59 14 23 45 15 40 6 14 16 46 -0.89 78 0 0 14 35 55 16 2 7.3 34 147 -39 15 10 32 14 1 38 15 17 38 13 54 41 -0.89 79 0 0 14 14 21 16 1 58.5 34 148 -40 14 48 49 13 40 13 14 55 52 13 33 19 -0.89 80 0 0 13 53 30 16 1 49.6 35 148 -41 14 27 48 13 19 31 14 34 50 13 12 38 -0.89 81 0 0 13 33 21 16 1 40.5 36 149 -42 14 7 31 12 59 31 14 14 31 12 52 40 -0.89 82 0 0 13 13 55 16 1 31.3 37 150 -43 13 47 56 12 40 13 13 54 54 12 33 24 -0.89 83 0 0 12 55 12 16 1 21.9 37 151 -44 13 29 5 12 21 37 13 36 1 12 14 50 -0.89 84 0 0 12 37 11 16 1 12.5 38 151 -45 13 10 56 12 3 44 13 17 50 11 56 58 -0.89 85 0 0 12 19 52 16 1 2.9 39 152 -46 12 53 29 11 46 33 13 0 22 11 39 48 -0.89 86 0 0 12 3 16 16 0 53.1 39 153 -47 12 36 46 11 30 3 12 43 37 11 23 20 -0.89 87 0 0 11 47 22 16 0 43.3 40 154 -48 12 20 45 11 14 16 12 27 35 11 7 34 -0.89 88 0 0 11 32 10 16 0 33.4 41 154 -48 12 5 27 10 59 11 12 12 15 10 52 30 -0.89 89 0 0 11 17 40 16 0 23.4 41 155 -49 11 50 51 10 44 47 11 57 38 10 38 8 -0.89 90 0 0 11 3 53 16 0 13.2 42 156 -50 11 36 57 10 31 5 11 43 43 10 24 27 -0.89 91 0 0 10 50 47 16 0 3.0 43 157 -51 11 23 46 10 18 6 11 30 31 10 11 28 -0.89 92 0 0 10 38 24 15 59 52.7 43 158 -52 11 11 18 10 5 47 11 18 1 9 59 11 -0.89 93 0 0 10 26 43 15 59 42.3 44 159 -53 10 59 31 9 54 11 11 6 14 9 47 35 -0.89 94 0 0 10 15 43 15 59 31.9 44 160 -54 10 48 26 9 43 15 10 55 8 9 36 41 -0.89 95 0 0 10 5 24 15 59 21.3 45 161 -54 10 38 4 9 33 1 10 44 45 9 26 28 -0.89 96 0 0 9 55 48 15 59 10.7 45 162 -55 10 28 23 9 23 29 10 35 3 9 16 56 -0.89 97 0 0 9 46 53 15 59 0.1 45 163 -56 10 19 25 9 14 38 10 26 4 9 8 6 -0.89 98 0 0 9 38 40 15 58 49.3 46 164 -57 10 11 8 9 6 28 10 17 46 8 59 57 -0.89 99 0 0 9 31 8 15 58 38.6 46 165 -58 10 3 33 8 58 59 10 10 11 8 52 29 -0.89 100 0 0 9 24 17 15 58 27.7 47 166 -58 9 56 39 8 52 12 10 3 17 8 45 42 -0.89 101 0 0 9 18 8 15 58 16.9 47 167 -59 9 50 28 8 46 5 9 57 4 8 39 36 -0.89 102 0 0 9 12 41 15 58 6.0 47 168 -60 9 44 58 8 40 40 9 51 34 8 34 11 -0.89 103 0 0 9 7 54 15 57 55.0 47 169 -60 9 40 9 8 35 55 9 46 45 8 29 27 -0.89 104 0 0 9 3 49 15 57 44.0 48 171 -61 9 36 2 8 31 52 9 42 37 8 25 23 -0.89 105 0 0 9 0 25 15 57 33.0 48 172 -62 9 32 36 8 28 29 9 39 12 8 22 1 -0.89 106 0 0 8 57 42 15 57 22.0 48 173 -62 9 29 52 8 25 47 9 36 27 8 19 19 -0.89 107 0 0 8 55 40 15 57 10.9 48 174 -63 9 27 49 8 23 46 9 34 24 8 17 18 -0.89 108 0 0 8 54 19 15 56 59.8 48 175 -63 9 26 28 8 22 26 9 33 3 8 15 58 -0.89 109 0 0 8 53 39 15 56 48.7 48 176 -64 9 25 48 8 21 47 9 32 23 8 15 19 -0.89 110 0 0 8 53 41 15 56 37.6 48 178 -64 9 25 50 8 21 48 9 32 24 8 15 20 -0.89 111 0 0 8 54 23 15 56 26.5 48 179 -65 9 26 32 8 22 30 9 33 7 8 16 3 -0.89 112 0 0 8 55 47 15 56 15.4 48 180 -65 9 27 56 8 23 53 9 34 31 8 17 25 -0.89 113 0 0 8 57 51 15 56 4.3 48 181 -65 9 30 2 8 25 57 9 36 37 8 19 29 -0.89 114 0 0 9 0 37 15 55 53.2 48 183 -66 9 32 49 8 28 41 9 39 24 8 22 13 -0.89 115 0 0 9 4 4 15 55 42.1 48 184 -66 9 36 17 8 32 7 9 42 52 8 25 39 -0.89 116 0 0 9 8 12 15 55 31.0 48 185 -66 9 40 27 8 36 13 9 47 2 8 29 45 -0.89 117 0 0 9 13 1 15 55 20.0 48 186 -66 9 45 18 8 41 0 9 51 54 8 34 31 -0.89 118 0 0 9 18 31 15 55 8.9 48 187 -66 9 50 50 8 46 28 9 57 27 8 39 59 -0.89 119 0 0 9 24 43 15 54 57.9 47 188 -66 9 57 4 8 52 37 10 3 42 8 46 7 -0.89 120 0 0 9 31 36 15 54 46.9 47 190 -66 10 4 0 8 59 27 10 10 38 8 52 57 -0.89 121 0 0 9 39 10 15 54 36.0 47 191 -66 10 11 37 9 6 59 10 18 16 9 0 27 -0.89 122 0 0 9 47 25 15 54 25.1 47 192 -66 10 19 57 9 15 11 10 26 36 9 8 39 -0.89 123 0 0 9 56 22 15 54 14.2 46 193 -66 10 28 57 9 24 4 10 35 37 9 17 31 -0.89 124 0 0 10 6 1 15 54 3.4 46 194 -66 10 38 40 9 33 38 10 45 21 9 27 5 -0.89 125 0 0 10 16 21 15 53 52.6 45 195 -66 10 49 4 9 43 54 10 55 46 9 37 20 -0.89 126 0 0 10 27 23 15 53 41.9 45 196 -65 11 0 11 9 54 51 11 6 53 9 48 16 -0.89 127 0 0 10 39 6 15 53 31.2 45 197 -65 11 11 59 10 6 30 11 18 43 9 59 54 -0.89 128 0 0 10 51 31 15 53 20.7 44 198 -65 11 24 29 10 18 50 11 31 14 10 12 13 -0.89 129 0 0 11 4 38 15 53 10.1 44 199 -64 11 37 42 10 31 51 11 44 28 10 25 13 -0.89 130 0 0 11 18 27 15 52 59.7 43 200 -64 11 51 36 10 45 34 11 58 24 10 38 55 -0.90 131 0 0 11 32 57 15 52 49.3 43 201 -63 12 6 13 10 59 59 12 13 2 10 53 18 -0.90 132 0 0 11 48 10 15 52 39.1 42 202 -63 12 21 32 11 15 5 12 28 22 11 8 23 -0.90 133 0 0 12 4 4 15 52 28.9 41 203 -62 12 37 34 11 30 53 12 44 25 11 24 10 -0.90 134 0 0 12 20 41 15 52 18.8 41 204 -62 12 54 18 11 47 23 13 1 11 11 40 38 -0.90 135 0 0 12 38 0 15 52 8.8 40 204 -61 13 11 44 12 4 35 13 18 39 11 57 49 -0.90 136 0 0 12 56 1 15 51 58.9 39 205 -60 13 29 53 12 22 28 13 36 49 12 15 41 -0.90 137 0 0 13 14 45 15 51 49.1 39 206 -60 13 48 45 12 41 4 13 55 42 12 34 15 -0.90 138 0 0 13 34 11 15 51 39.5 38 207 -59 14 8 19 13 0 21 14 15 18 12 53 30 -0.90 139 0 0 13 54 19 15 51 29.9 37 208 -58 14 28 36 13 20 21 14 35 37 13 13 28 -0.90 140 0 0 14 15 9 15 51 20.5 37 208 -57 14 49 35 13 41 3 14 56 39 13 34 8 -0.90 141 0 0 14 36 42 15 51 11.2 36 209 -56 15 11 18 14 2 26 15 18 23 13 55 30 -0.91 142 0 0 14 58 57 15 51 2.1 35 210 -56 15 33 43 14 24 32 15 40 50 14 17 34 -0.91 143 0 0 15 21 55 15 50 53.1 34 210 -55 15 56 50 14 47 20 16 3 59 14 40 20 -0.91 144 0 0 15 45 35 15 50 44.3 33 211 -54 16 20 41 15 10 49 16 27 52 15 3 47 -0.91 145 0 0 16 9 57 15 50 35.6 33 212 -53 16 45 14 15 35 1 16 52 27 15 27 57 -0.91 146 0 0 16 35 1 15 50 27.1 32 212 -52 17 10 29 15 59 55 17 17 45 15 52 49 -0.91 147 0 0 17 0 48 15 50 18.8 31 213 -51 17 36 28 16 25 31 17 43 46 16 18 22 -0.91 148 0 0 17 27 17 15 50 10.6 30 213 -50 18 3 8 16 51 48 18 10 29 16 44 38 -0.91 149 0 0 17 54 28 15 50 2.7 29 214 -49 18 30 31 17 18 47 18 37 54 17 11 34 -0.91 150 0 0 18 22 20 15 49 54.9 28 215 -49 18 58 36 17 46 27 19 6 2 17 39 12 -0.92 151 0 0 18 50 54 15 49 47.3 27 215 -48 19 27 23 18 14 49 19 34 51 18 7 31 -0.92 152 0 0 19 20 10 15 49 39.9 26 216 -47 19 56 51 18 43 52 20 4 22 18 36 31 -0.92 153 0 0 19 50 6 15 49 32.8 25 216 -46 20 27 1 19 13 35 20 34 35 19 6 12 -0.92 154 0 0 20 20 44 15 49 25.9 25 217 -45 20 57 53 19 43 59 21 5 29 19 36 34 -0.92 155 0 0 20 52 2 15 49 19.1 24 217 -44 21 29 25 20 15 4 21 37 5 20 7 35 -0.92 156 0 0 21 24 0 15 49 12.7 23 218 -43 22 1 38 20 46 48 22 9 20 20 39 17 -0.92 157 0 0 21 56 38 15 49 6.4 22 218 -42 22 34 31 21 19 12 22 42 16 21 11 38 -0.92 158 0 0 22 29 56 15 49 0.5 21 219 -41 23 8 3 21 52 15 23 15 52 21 44 38 -0.93 159 0 0 23 3 52 15 48 54.7 20 219 -40 23 42 15 22 25 57 23 50 7 22 18 17 -0.93 160 0 0 23 38 27 15 48 49.3 19 220 -38 24 17 6 23 0 17 24 25 1 22 52 34 -0.93 161 0 0 24 13 40 15 48 44.1 18 220 -37 24 52 34 23 35 14 25 0 33 23 27 28 -0.93 162 0 0 24 49 30 15 48 39.1 17 221 -36 25 28 40 24 10 48 25 36 43 24 2 59 -0.93 163 0 0 25 25 56 15 48 34.5 15 221 -35 26 5 23 24 46 59 26 13 29 24 39 6 -0.93 164 0 0 26 2 58 15 48 30.1 14 222 -34 26 42 42 25 23 44 26 50 51 25 15 49 -0.94 165 0 0 26 40 35 15 48 26.1 13 222 -33 27 20 36 26 1 5 27 28 48 25 53 6 -0.94 166 0 0 27 18 46 15 48 22.3 12 223 -32 27 59 4 26 38 59 28 7 20 26 30 57 -0.94 167 0 0 27 57 30 15 48 18.8 11 223 -31 28 38 5 27 17 27 28 46 25 27 9 21 -0.94 168 0 0 28 36 46 15 48 15.7 10 224 -30 29 17 39 27 56 26 29 26 2 27 48 17 -0.95 169 0 0 29 16 33 15 48 12.8 9 224 -29 29 57 43 28 35 55 30 6 10 28 27 43 -0.95 170 0 0 29 56 49 15 48 10.3 8 225 -28 30 38 17 29 15 55 30 46 48 29 7 39 -0.95 171 0 0 30 37 34 15 48 8.1 7 225 -27 31 19 20 29 56 23 31 27 55 29 48 4 -0.96 172 0 0 31 18 46 15 48 6.2 6 226 -26 32 0 50 30 37 17 32 9 28 30 28 55 -0.96 173 0 0 32 0 24 15 48 4.7 5 226 -24 32 42 46 31 18 38 32 51 28 31 10 12 -0.97 174 0 0 32 42 26 15 48 3.4 4 227 -23 33 25 6 32 0 23 33 33 52 31 51 53 -0.99 175 0 0 33 24 50 15 48 2.5 3 228 -22 34 7 48 32 42 30 34 16 38 32 33 57 -1.02 176 0 0 34 7 36 15 48 1.9 1 228 -21 34 50 52 33 24 58 34 59 45 33 16 22 -1.09 177 0 0 34 50 41 15 48 1.7 0 229 -20 .. .. .. 34 7 46 .. .. .. 33 59 7 -1.53 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: TYC 7462-00733-1 * constellation : Microscopium * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 20 56 36.1320 DE: -32 46 59.372 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 20 56 36.1319 DE: -32 46 59.372 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.3 * B mag [mag]: 11.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (952) Caia asteroid class: approx. diameter [km]: 88 approx. diameter ["]: 0.078 distance from Earth [AU]: 1.55260 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#63 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): 0.027", 0.002", 72.201° remarks: * orbital elements for (952)Caia : Mean anomaly = 320.3479314542 deg Arg. of pericenter = 356.7910605072 deg Long. of node = 18.3860207011 deg Inclination = 9.9920076276 deg Eccentricity = 0.2442118000 Semimajor axis = 2.9902200911 AU Perihelion dist = 2.2599730603 AU Mag: H = 9.40, G = 0.15 Epoch of elements : MJD 60536.66419412 TDT (2024 Aug 14.6642) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#632023Apr24,9.35,2024,8,14,15.940643,-0.014570,0.662984,-5.327699,-0.116972,0.000967,0.001715,0.000001,0.000000 111.8631,-32.6881,-57.96,14.06,False TYC 7462-00733-1,20.94336999,-32.7831588,11.83,11.30,11.01,0.0,0,,20.96906115,-32.6880891,1.85,1.72,0,0,0 952,Caia,12.93,88.246,1.5526,0,0,-2.389,-0.65,,4.4,0 0,320.2213,2024,8,14,356.7911,18.3860,9.9920,0.24421,2.99022,2.25997,9.39,5.0,0.15 1.102,0.0273,0.0018,72,0.0080,Known errors,1.37,0,-1,-1 20240814_0733-1,60140.25 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 05:53 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org