IOTA/IOTA-ES occultation update for (1692) Subbotina / TYC 6279-00902-1 event on 2024 Oct 13, 03:12 UT Visible from Summary ------- On 2024 Oct 13 UT, the 38.255 km diameter asteroid (1692) Subbotina will occult a 11.7 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 4.64 mag to 16.32 mag (the magnitude of the asteroid) for at most 1.510 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 Oct 13, 03:09 - 2024 Oct 13, 03:15 * geocentric midpoint of event [JD]: 2460596.63355266 * magnitude of target star: 11.70 * magnitude drop [mag]: 4.64 * estimated maximum duration [s]: 1.510 * Moon: 74 % sunlit, 41° distance * Sun: 78° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 52 * 1 sigma uncertainty interval [path widths]: +/- 0.06 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.001", 86°) * approx speed of asteroid's shadow [km/s]: 25.3331 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6279-00902-1 by 1692 Subbotina on 2024 Oct 13 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 137 0 0 37 47 53 3 9 12.4 1 117 44 37 32 20 38 3 30 37 30 19 38 5 32 .... 138 0 0 37 23 56 3 9 12.5 1 118 44 37 8 25 37 39 32 37 6 24 37 41 33 -0.48 139 0 0 37 0 4 3 9 12.6 2 118 44 36 44 34 37 15 38 36 42 34 37 17 39 -0.64 140 0 0 36 36 16 3 9 12.9 3 119 44 36 20 48 36 51 49 36 18 48 36 53 50 -0.71 141 0 0 36 12 35 3 9 13.2 4 120 45 35 57 9 36 28 6 35 55 9 36 30 7 -0.75 142 0 0 35 49 1 3 9 13.6 5 120 45 35 33 36 36 4 30 35 31 37 36 6 31 -0.78 143 0 0 35 25 33 3 9 14.1 6 121 45 35 10 10 35 41 1 35 8 11 35 43 1 -0.80 144 0 0 35 2 13 3 9 14.7 7 121 45 34 46 52 35 17 39 34 44 53 35 19 39 -0.81 145 0 0 34 39 2 3 9 15.4 8 122 45 34 23 43 34 54 26 34 21 44 34 56 26 -0.82 146 0 0 34 16 1 3 9 16.2 9 122 45 34 0 43 34 31 23 33 58 44 34 33 23 -0.83 147 0 0 33 53 9 3 9 17.0 10 123 45 33 37 53 34 8 29 33 35 55 34 10 29 -0.83 148 0 0 33 30 28 3 9 18.0 10 124 45 33 15 14 33 45 46 33 13 16 33 47 46 -0.84 149 0 0 33 7 59 3 9 19.0 11 124 45 32 52 46 33 23 15 32 50 48 33 25 14 -0.85 150 0 0 32 45 41 3 9 20.1 12 125 45 32 30 30 33 0 55 32 28 33 33 2 54 -0.85 151 0 0 32 23 36 3 9 21.3 13 125 45 32 8 27 32 38 48 32 6 30 32 40 47 -0.85 152 0 0 32 1 44 3 9 22.6 14 126 45 31 46 38 32 16 55 31 44 40 32 18 53 -0.86 153 0 0 31 40 6 3 9 23.9 15 127 44 31 25 2 31 55 15 31 23 5 31 57 13 -0.86 154 0 0 31 18 43 3 9 25.4 16 127 44 31 3 40 31 33 49 31 1 44 31 35 47 -0.86 155 0 0 30 57 35 3 9 26.9 17 128 44 30 42 34 31 12 39 30 40 38 31 14 37 -0.86 156 0 0 30 36 42 3 9 28.6 18 128 44 30 21 44 30 51 45 30 19 47 30 53 42 -0.87 157 0 0 30 16 6 3 9 30.3 19 129 43 30 1 9 30 31 7 29 59 14 30 33 4 -0.87 158 0 0 29 55 47 3 9 32.1 19 130 43 29 40 52 30 10 45 29 38 56 30 12 42 -0.87 159 0 0 29 35 45 3 9 34.0 20 130 43 29 20 52 29 50 42 29 18 57 29 52 38 -0.87 160 0 0 29 16 1 3 9 35.9 21 131 42 29 1 10 29 30 56 28 59 15 29 32 52 -0.87 161 0 0 28 56 36 3 9 38.0 22 131 42 28 41 47 29 11 28 28 39 52 29 13 24 -0.87 162 0 0 28 37 29 3 9 40.1 23 132 42 28 22 43 28 52 20 28 20 48 28 54 16 -0.88 163 0 0 28 18 43 3 9 42.3 24 133 41 28 3 58 28 33 31 28 2 3 28 35 27 -0.88 164 0 0 28 0 16 3 9 44.6 25 133 41 27 45 33 28 15 3 27 43 39 28 16 58 -0.88 165 0 0 27 42 10 3 9 47.0 26 134 40 27 27 28 27 56 54 27 25 34 27 58 49 -0.88 166 0 0 27 24 24 3 9 49.4 26 135 40 27 9 45 27 39 7 27 7 51 27 41 2 -0.88 167 0 0 27 7 0 3 9 51.9 27 135 39 26 52 23 27 21 41 26 50 29 27 23 36 -0.88 168 0 0 26 49 58 3 9 54.5 28 136 39 26 35 22 27 4 37 26 33 29 27 6 31 -0.88 169 0 0 26 33 18 3 9 57.2 29 137 38 26 18 44 26 47 55 26 16 51 26 49 49 -0.88 170 0 0 26 17 1 3 9 59.9 30 137 38 26 2 29 26 31 36 26 0 36 26 33 30 -0.88 171 0 0 26 1 7 3 10 2.8 31 138 37 25 46 36 26 15 40 25 44 44 26 17 34 -0.89 172 0 0 25 45 36 3 10 5.6 31 139 36 25 31 7 26 0 8 25 29 15 26 2 1 -0.89 173 0 0 25 30 29 3 10 8.6 32 140 36 25 16 2 25 44 59 25 14 10 25 46 52 -0.89 174 0 0 25 15 46 3 10 11.6 33 140 35 25 1 20 25 30 15 24 59 29 25 32 8 -0.89 175 0 0 25 1 28 3 10 14.7 34 141 34 24 47 4 25 15 55 24 45 12 25 17 47 -0.89 176 0 0 24 47 34 3 10 17.8 34 142 34 24 33 12 25 2 0 24 31 20 25 3 52 -0.89 177 0 0 24 34 5 3 10 21.0 35 143 33 24 19 45 24 48 30 24 17 53 24 50 22 -0.89 178 0 0 24 21 2 3 10 24.3 36 144 32 24 6 43 24 35 25 24 4 52 24 37 17 -0.89 179 0 0 24 8 25 3 10 27.6 37 145 32 23 54 7 24 22 46 23 52 16 24 24 38 -0.89 -180 0 0 23 56 14 3 10 31.0 37 145 31 23 41 57 24 10 33 23 40 7 24 12 25 -0.89 -179 0 0 23 44 28 3 10 34.4 38 146 30 23 30 13 23 58 47 23 28 23 24 0 38 -0.89 -178 0 0 23 33 10 3 10 37.9 39 147 29 23 18 56 23 47 27 23 17 6 23 49 18 -0.89 -177 0 0 23 22 18 3 10 41.4 39 148 29 23 8 5 23 36 34 23 6 15 23 38 25 -0.89 -176 0 0 23 11 53 3 10 45.0 40 149 28 22 57 42 23 26 7 22 55 51 23 27 58 -0.89 -175 0 0 23 1 55 3 10 48.6 40 150 27 22 47 45 23 16 8 22 45 55 23 17 59 -0.90 -174 0 0 22 52 24 3 10 52.3 41 151 26 22 38 15 23 6 37 22 36 26 23 8 27 -0.90 -173 0 0 22 43 21 3 10 56.0 42 152 25 22 29 14 22 57 33 22 27 24 22 59 23 -0.90 -172 0 0 22 34 46 3 10 59.7 42 153 25 22 20 39 22 48 56 22 18 50 22 50 47 -0.90 -171 0 0 22 26 39 3 11 3.5 43 155 24 22 12 33 22 40 48 22 10 44 22 42 38 -0.90 -170 0 0 22 19 0 3 11 7.4 43 156 23 22 4 55 22 33 8 22 3 5 22 34 58 -0.90 -169 0 0 22 11 48 3 11 11.2 44 157 22 21 57 44 22 25 56 21 55 55 22 27 46 -0.90 -168 0 0 22 5 6 3 11 15.1 44 158 21 21 51 2 22 19 12 21 49 13 22 21 2 -0.90 -167 0 0 21 58 51 3 11 19.1 45 159 20 21 44 49 22 12 57 21 43 0 22 14 47 -0.90 -166 0 0 21 53 6 3 11 23.0 45 160 19 21 39 4 22 7 11 21 37 15 22 9 1 -0.90 -165 0 0 21 47 49 3 11 27.0 45 162 19 21 33 48 22 1 53 21 31 59 22 3 43 -0.90 -164 0 0 21 43 1 3 11 31.0 46 163 18 21 29 0 21 57 5 21 27 11 21 58 54 -0.90 -163 0 0 21 38 41 3 11 35.1 46 164 17 21 24 41 21 52 45 21 22 53 21 54 34 -0.90 -162 0 0 21 34 51 3 11 39.1 46 166 16 21 20 51 21 48 54 21 19 3 21 50 43 -0.90 -161 0 0 21 31 30 3 11 43.2 47 167 15 21 17 30 21 45 32 21 15 42 21 47 22 -0.90 -160 0 0 21 28 38 3 11 47.3 47 168 14 21 14 39 21 42 40 21 12 50 21 44 29 -0.90 -159 0 0 21 26 15 3 11 51.4 47 170 13 21 12 16 21 40 16 21 10 27 21 42 6 -0.90 -158 0 0 21 24 21 3 11 55.5 47 171 12 21 10 22 21 38 22 21 8 34 21 40 12 -0.90 -157 0 0 21 22 56 3 11 59.7 48 172 11 21 8 58 21 36 58 21 7 9 21 38 47 -0.90 -156 0 0 21 22 1 3 12 3.8 48 174 10 21 8 3 21 36 2 21 6 14 21 37 51 -0.90 -155 0 0 21 21 35 3 12 8.0 48 175 10 21 7 37 21 35 36 21 5 48 21 37 25 -0.90 -154 0 0 21 21 38 3 12 12.1 48 177 9 21 7 40 21 35 39 21 5 52 21 37 29 -0.90 -153 0 0 21 22 11 3 12 16.3 48 178 8 21 8 12 21 36 12 21 6 24 21 38 1 -0.90 -152 0 0 21 23 13 3 12 20.5 48 179 7 21 9 14 21 37 14 21 7 26 21 39 3 -0.90 -151 0 0 21 24 44 3 12 24.6 48 181 6 21 10 45 21 38 45 21 8 57 21 40 35 -0.90 -150 0 0 21 26 44 3 12 28.8 48 182 5 21 12 45 21 40 46 21 10 57 21 42 35 -0.90 -149 0 0 21 29 13 3 12 33.0 48 184 4 21 15 14 21 43 16 21 13 26 21 45 5 -0.90 -148 0 0 21 32 12 3 12 37.1 48 185 3 21 18 13 21 46 15 21 16 24 21 48 4 -0.90 -147 0 0 21 35 40 3 12 41.2 47 187 2 21 21 40 21 49 43 21 19 51 21 51 32 -0.90 -146 0 0 21 39 37 3 12 45.4 47 188 1 21 25 36 21 53 40 21 23 48 21 55 30 -0.91 -145 0 0 21 44 3 3 12 49.5 47 189 0 21 30 2 21 58 7 21 28 13 21 59 56 -0.91 -144 0 0 21 48 57 3 12 53.6 47 191 -1 21 34 56 22 3 2 21 33 7 22 4 52 -0.91 -143 0 0 21 54 21 3 12 57.7 47 192 -2 21 40 19 22 8 26 21 38 30 22 10 16 -0.91 -142 0 0 22 0 13 3 13 1.8 46 193 -3 21 46 10 22 14 19 21 44 21 22 16 9 -0.91 -141 0 0 22 6 34 3 13 5.8 46 195 -4 21 52 30 22 20 41 21 50 41 22 22 31 -0.91 -140 0 0 22 13 23 3 13 9.8 46 196 -5 21 59 19 22 27 31 21 57 29 22 29 21 -0.91 -139 0 0 22 20 41 3 13 13.8 45 197 -6 22 6 35 22 34 49 22 4 46 22 36 40 -0.91 -138 0 0 22 28 27 3 13 17.8 45 198 -6 22 14 20 22 42 36 22 12 31 22 44 27 -0.91 -137 0 0 22 36 41 3 13 21.7 44 200 -7 22 22 33 22 50 51 22 20 44 22 52 42 -0.91 -136 0 0 22 45 23 3 13 25.6 44 201 -8 22 31 14 22 59 34 22 29 25 23 1 25 -0.91 -135 0 0 22 54 32 3 13 29.5 43 202 -9 22 40 23 23 8 45 22 38 33 23 10 36 -0.91 -134 0 0 23 4 9 3 13 33.4 43 203 -10 22 49 59 23 18 23 22 48 9 23 20 14 -0.91 -133 0 0 23 14 14 3 13 37.2 42 204 -11 23 0 2 23 28 29 22 58 12 23 30 20 -0.91 -132 0 0 23 24 46 3 13 40.9 42 205 -12 23 10 33 23 39 2 23 8 43 23 40 53 -0.91 -131 0 0 23 35 44 3 13 44.7 41 206 -13 23 21 30 23 50 2 23 19 40 23 51 53 -0.91 -130 0 0 23 47 10 3 13 48.3 41 207 -14 23 32 54 24 1 29 23 31 4 24 3 20 -0.91 -129 0 0 23 59 2 3 13 52.0 40 208 -15 23 44 45 24 13 22 23 42 54 24 15 14 -0.91 -128 0 0 24 11 20 3 13 55.6 39 210 -16 23 57 2 24 25 42 23 55 11 24 27 34 -0.91 -127 0 0 24 24 4 3 13 59.1 39 210 -17 24 9 44 24 38 27 24 7 53 24 40 19 -0.91 -126 0 0 24 37 14 3 14 2.6 38 211 -18 24 22 53 24 51 39 24 21 1 24 53 31 -0.91 -125 0 0 24 50 49 3 14 6.0 37 212 -19 24 36 26 25 5 15 24 34 35 25 7 8 -0.91 -124 0 0 25 4 50 3 14 9.4 37 213 -20 24 50 25 25 19 17 24 48 33 25 21 10 -0.91 -123 0 0 25 19 15 3 14 12.8 36 214 -21 25 4 49 25 33 44 25 2 57 25 35 37 -0.91 -122 0 0 25 34 5 3 14 16.0 35 215 -21 25 19 37 25 48 36 25 17 45 25 50 29 -0.91 -121 0 0 25 49 18 3 14 19.2 35 216 -22 25 34 49 26 3 51 25 32 56 26 5 44 -0.91 -120 0 0 26 4 56 3 14 22.4 34 217 -23 25 50 25 26 19 30 25 48 32 26 21 24 -0.91 -119 0 0 26 20 57 3 14 25.5 33 218 -24 26 6 24 26 35 33 26 4 31 26 37 27 -0.91 -118 0 0 26 37 21 3 14 28.5 32 218 -25 26 22 46 26 51 59 26 20 53 26 53 53 -0.91 -117 0 0 26 54 8 3 14 31.5 31 219 -26 26 39 31 27 8 47 26 37 38 27 10 42 -0.91 -116 0 0 27 11 16 3 14 34.3 31 220 -27 26 56 38 27 25 58 26 54 45 27 27 53 -0.91 -115 0 0 27 28 47 3 14 37.2 30 221 -28 27 14 7 27 43 31 27 12 13 27 45 26 -0.91 -114 0 0 27 46 39 3 14 39.9 29 221 -28 27 31 57 28 1 25 27 30 3 28 3 20 -0.91 -113 0 0 28 4 52 3 14 42.6 28 222 -29 27 50 8 28 19 40 27 48 14 28 21 35 -0.91 -112 0 0 28 23 25 3 14 45.2 27 223 -30 28 8 40 28 38 15 28 6 45 28 40 10 -0.91 -111 0 0 28 42 19 3 14 47.7 27 224 -31 28 27 31 28 57 10 28 25 36 28 59 6 -0.91 -110 0 0 29 1 32 3 14 50.2 26 224 -32 28 46 42 29 16 25 28 44 47 29 18 21 -0.91 -109 0 0 29 21 3 3 14 52.6 25 225 -33 29 6 12 29 35 59 29 4 16 29 37 55 -0.91 -108 0 0 29 40 54 3 14 54.9 24 226 -33 29 26 0 29 55 51 29 24 4 29 57 48 -0.91 -107 0 0 30 1 2 3 14 57.1 23 226 -34 29 46 6 30 16 1 29 44 10 30 17 58 -0.91 -106 0 0 30 21 27 3 14 59.2 22 227 -35 30 6 30 30 36 29 30 4 34 30 38 26 -0.91 -105 0 0 30 42 10 3 15 1.3 21 228 -36 30 27 10 30 57 13 30 25 14 30 59 10 -0.91 -104 0 0 31 3 8 3 15 3.2 21 228 -37 30 48 7 31 18 14 30 46 10 31 20 11 -0.91 -103 0 0 31 24 23 3 15 5.1 20 229 -37 31 9 19 31 39 30 31 7 22 31 41 28 -0.91 -102 0 0 31 45 52 3 15 6.9 19 229 -38 31 30 46 32 1 1 31 28 49 32 2 59 -0.91 -101 0 0 32 7 36 3 15 8.7 18 230 -39 31 52 28 32 22 47 31 50 31 32 24 45 -0.91 -100 0 0 32 29 33 3 15 10.3 17 231 -39 32 14 24 32 44 46 32 12 26 32 46 45 -0.91 - 99 0 0 32 51 44 3 15 11.9 16 231 -40 32 36 33 33 6 59 32 34 35 33 8 58 -0.91 - 98 0 0 33 14 7 3 15 13.3 15 232 -41 32 58 54 33 29 24 32 56 56 33 31 23 -0.91 - 97 0 0 33 36 42 3 15 14.7 14 233 -41 33 21 27 33 52 1 33 19 29 33 54 0 -0.91 - 96 0 0 33 59 28 3 15 16.0 13 233 -42 33 44 11 34 14 49 33 42 13 34 16 49 -0.91 - 95 0 0 34 22 25 3 15 17.2 13 234 -43 34 7 6 34 37 48 34 5 8 34 39 48 -0.91 - 94 0 0 34 45 32 3 15 18.4 12 234 -43 34 30 11 35 0 56 34 28 12 35 2 56 -0.91 - 93 0 0 35 8 47 3 15 19.4 11 235 -44 34 53 25 35 24 14 34 51 26 35 26 14 -0.92 - 92 0 0 35 32 12 3 15 20.4 10 236 -44 35 16 48 35 47 40 35 14 48 35 49 40 -0.92 - 91 0 0 35 55 44 3 15 21.2 9 236 -45 35 40 18 36 11 14 35 38 18 36 13 14 -0.92 - 90 0 0 36 19 23 3 15 22.0 8 237 -46 36 3 55 36 34 54 36 1 55 36 36 55 -0.92 - 89 0 0 36 43 8 3 15 22.7 7 237 -46 36 27 39 36 58 41 36 25 39 37 0 43 -0.92 - 88 0 0 37 6 59 3 15 23.3 6 238 -46 36 51 29 37 22 34 36 49 28 37 24 36 -0.93 - 87 0 0 37 30 55 3 15 23.9 5 239 -47 37 15 23 37 46 32 37 13 23 37 48 33 -0.93 - 86 0 0 37 54 56 3 15 24.3 4 239 -47 37 39 22 38 10 34 37 37 21 38 12 35 -0.94 - 85 0 0 38 18 59 3 15 24.7 4 240 -48 38 3 24 38 34 39 38 1 24 38 36 41 -0.95 - 84 0 0 38 43 6 3 15 24.9 3 240 -48 38 27 30 38 58 47 38 25 29 39 0 49 -0.97 - 83 0 0 39 7 15 3 15 25.1 2 241 -48 38 51 37 39 22 57 38 49 36 39 24 59 -1.00 - 82 0 0 39 31 25 3 15 25.3 1 242 -49 39 15 46 39 47 8 39 13 44 39 49 10 -1.09 - 81 0 0 39 55 35 3 15 25.3 0 242 -49 39 39 55 .. .. .. 39 37 54 .. .. .. -2.47 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 6279-00902-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 33 07.5418 DE: -20 50 53.819 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 33 07.5415 DE: -20 50 53.819 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.7 * B mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1692) Subbotina asteroid class: approx. diameter [km]: 38 approx. diameter ["]: 0.022 distance from Earth [AU]: 2.41600 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#54 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): 0.012", 0.001", 85.88° remarks: * orbital elements for (1692)Subbotina : Mean anomaly = 352.6283835014 deg Arg. of pericenter = 111.8354260382 deg Long. of node = 199.5578542537 deg Inclination = 2.4269094994 deg Eccentricity = 0.1364688601 Semimajor axis = 2.7875636807 AU Perihelion dist = 2.4071480427 AU Mag: H = 11.37, G = 0.15 Epoch of elements : MJD 60596.13355245 TDT (2024 Oct 13.1336) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542023Apr24,1.51,2024,10,13,3.205264,-0.012294,0.669839,14.296169,0.269973,0.005460,0.000380,0.000000,0.000000 -151.6088,-20.8305,128.48,-7.93,False TYC 6279-00902-1,18.55209497,-20.8482830,12.18,11.70,11.44,0.0,0,,18.57659302,-20.8304745,4.63,4.44,0,0,0 1692,Subbotina,16.32,38.255,2.4160,0,0,3.712,0.98,,1.8,0 0,352.6001,2024,10,13,111.8354,199.5579,2.4269,0.13647,2.78756,2.40715,11.37,5.0,0.15 1.065,0.0120,0.0013,86,0.0014,Known errors,0.62,0,-1,-1 20241013_0902-1,60140.63 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:07 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org