IOTA/IOTA-ES occultation update for (683) Lanzia / UCAC4 330-063617 event on 2023 Mar 09, 15:01 UT Visible from China Summary ------- On 2023 Mar 09 UT, the 109.4 km diameter asteroid (683) Lanzia will occult a 11.0 mag star in the constellation Crater for observers along a path across China. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.33 mag to 13.24 mag (the magnitude of the asteroid) for at most 9.300 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: 2023 Mar 09, 14:54 - 2023 Mar 09, 15:08 * geocentric midpoint of event [JD]: 2460013.12590167 * magnitude of target star: 11.04 * magnitude drop [mag]: 2.33 * estimated maximum duration [s]: 9.300 * Moon: 96 % sunlit, 33° distance * Sun: 151° distance * rough path description: China Additional comments ------------------- RUWE high The occultation path -------------------- * approximate projected width [km]: 147 * 1 sigma uncertainty interval [path widths]: +/- 0.09 * 1 sigma uncertainty interval [seconds]: +/- 4.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.030, +/- 0.014) * 1 sigma uncertainty ellipse (major, minor, PA): (0.033", 0.006", 114°) * approx speed of asteroid's shadow [km/s]: 11.7691 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 330-063617 by 683 Lanzia on 2023 Mar 9 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 78 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 51 55 17 .. .. .. 51 46 9 .... 79 0 0 52 15 42 15 8 0.6 1 133 -23 .. .. .. 51 21 58 .. .. .. 51 12 49 .... 80 0 0 51 41 57 15 8 0.4 1 133 -24 52 36 46 50 48 12 52 46 17 50 39 3 -0.46 81 0 0 51 7 47 15 8 0.1 2 134 -25 52 2 36 50 14 0 52 12 8 50 4 52 -0.63 82 0 0 50 33 11 15 7 59.6 3 135 -26 51 28 0 49 39 25 51 37 32 49 30 16 -0.71 83 0 0 49 58 11 15 7 59.0 4 136 -27 50 52 59 49 4 25 51 2 30 48 55 17 -0.76 84 0 0 49 22 48 15 7 58.2 5 137 -28 50 17 34 48 29 4 50 27 5 48 19 56 -0.78 85 0 0 48 47 3 15 7 57.1 6 137 -28 49 41 46 47 53 22 49 51 17 47 44 15 -0.80 86 0 0 48 10 58 15 7 56.0 7 138 -29 49 5 37 47 17 21 49 15 8 47 8 14 -0.82 87 0 0 47 34 34 15 7 54.6 7 139 -30 48 29 9 46 41 1 48 38 38 46 31 55 -0.83 88 0 0 46 57 52 15 7 53.0 8 140 -31 47 52 22 46 4 24 48 1 50 45 55 19 -0.84 89 0 0 46 20 54 15 7 51.2 9 140 -32 47 15 18 45 27 32 47 24 45 45 18 28 -0.85 90 0 0 45 43 42 15 7 49.3 10 141 -33 46 37 58 44 50 26 46 47 24 44 41 23 -0.85 91 0 0 45 6 16 15 7 47.1 11 142 -34 46 0 24 44 13 8 46 9 49 44 4 5 -0.86 92 0 0 44 28 38 15 7 44.7 12 142 -35 45 22 38 43 35 38 45 32 2 43 26 37 -0.86 93 0 0 43 50 51 15 7 42.1 13 143 -36 44 44 42 42 57 59 44 54 3 42 49 0 -0.87 94 0 0 43 12 54 15 7 39.3 14 144 -37 44 6 36 42 20 13 44 15 56 42 11 15 -0.87 95 0 0 42 34 51 15 7 36.3 15 145 -38 43 28 22 41 42 19 43 37 40 41 33 23 -0.87 96 0 0 41 56 43 15 7 33.1 16 145 -39 42 50 3 41 4 22 42 59 19 40 55 27 -0.88 97 0 0 41 18 31 15 7 29.6 17 146 -39 42 11 39 40 26 21 42 20 53 40 17 28 -0.88 98 0 0 40 40 17 15 7 25.9 18 147 -40 41 33 13 39 48 18 41 42 24 39 39 28 -0.88 99 0 0 40 2 3 15 7 22.1 19 148 -41 40 54 45 39 10 16 41 3 55 39 1 27 -0.88 100 0 0 39 23 49 15 7 18.0 20 148 -42 40 16 19 38 32 15 40 25 26 38 23 28 -0.89 101 0 0 38 45 38 15 7 13.7 21 149 -43 39 37 54 37 54 17 39 46 59 37 45 33 -0.89 102 0 0 38 7 32 15 7 9.2 21 150 -44 38 59 33 37 16 24 39 8 36 37 7 42 -0.89 103 0 0 37 29 31 15 7 4.5 22 151 -45 38 21 18 36 38 37 38 30 18 36 29 57 -0.89 104 0 0 36 51 37 15 6 59.5 23 151 -46 37 43 10 36 0 57 37 52 7 35 52 20 -0.89 105 0 0 36 13 53 15 6 54.4 24 152 -47 37 5 10 35 23 27 37 14 5 35 14 52 -0.89 106 0 0 35 36 18 15 6 49.1 25 153 -48 36 27 21 34 46 7 36 36 12 34 37 34 -0.89 107 0 0 34 58 55 15 6 43.5 26 154 -49 35 49 42 34 8 59 35 58 31 34 0 29 -0.89 108 0 0 34 21 46 15 6 37.8 27 154 -50 35 12 17 33 32 4 35 21 3 33 23 36 -0.89 109 0 0 33 44 50 15 6 31.9 28 155 -51 34 35 6 32 55 23 34 43 49 32 46 58 -0.89 110 0 0 33 8 10 15 6 25.8 29 156 -52 33 58 10 32 18 59 34 6 50 32 10 36 -0.89 111 0 0 32 31 47 15 6 19.5 30 157 -53 33 21 31 31 42 51 33 30 9 31 34 31 -0.90 112 0 0 31 55 42 15 6 13.0 31 158 -54 32 45 10 31 7 1 32 53 45 30 58 43 -0.90 113 0 0 31 19 56 15 6 6.4 31 158 -55 32 9 8 30 31 31 32 17 40 30 23 16 -0.90 114 0 0 30 44 31 15 5 59.6 32 159 -56 31 33 27 29 56 20 31 41 56 29 48 8 -0.90 115 0 0 30 9 27 15 5 52.6 33 160 -57 30 58 7 29 21 32 31 6 33 29 13 22 -0.90 116 0 0 29 34 46 15 5 45.5 34 161 -58 30 23 9 28 47 6 30 31 33 28 38 58 -0.90 117 0 0 29 0 28 15 5 38.2 35 162 -59 29 48 35 28 13 3 29 56 56 28 4 58 -0.90 118 0 0 28 26 34 15 5 30.7 36 163 -60 29 14 26 27 39 24 29 22 44 27 31 22 -0.90 119 0 0 27 53 6 15 5 23.2 36 164 -61 28 40 42 27 6 11 28 48 57 26 58 11 -0.90 120 0 0 27 20 4 15 5 15.5 37 165 -62 28 7 25 26 33 24 28 15 37 26 25 27 -0.90 121 0 0 26 47 29 15 5 7.6 38 166 -63 27 34 34 26 1 4 27 42 44 25 53 9 -0.90 122 0 0 26 15 22 15 4 59.7 39 167 -64 27 2 12 25 29 11 27 10 19 25 21 19 -0.90 123 0 0 25 43 43 15 4 51.6 39 168 -65 26 30 18 24 57 47 26 38 23 24 49 57 -0.90 124 0 0 25 12 34 15 4 43.4 40 169 -66 25 58 54 24 26 52 26 6 56 24 19 4 -0.90 125 0 0 24 41 54 15 4 35.1 41 170 -67 25 28 0 23 56 26 25 35 59 23 48 41 -0.90 126 0 0 24 11 45 15 4 26.7 41 171 -68 24 57 36 23 26 31 25 5 33 23 18 48 -0.90 127 0 0 23 42 7 15 4 18.2 42 172 -69 24 27 44 22 57 7 24 35 39 22 49 26 -0.90 128 0 0 23 13 1 15 4 9.7 42 173 -70 23 58 24 22 28 14 24 6 16 22 20 36 -0.90 129 0 0 22 44 27 15 4 1.0 43 174 -70 23 29 36 21 59 53 23 37 26 21 52 17 -0.90 130 0 0 22 16 26 15 3 52.3 44 175 -71 23 1 22 21 32 5 23 9 9 21 24 31 -0.90 131 0 0 21 48 58 15 3 43.5 44 177 -72 22 33 40 21 4 49 22 41 25 20 57 18 -0.90 132 0 0 21 22 3 15 3 34.6 45 178 -73 22 6 33 20 38 7 22 14 15 20 30 37 -0.90 133 0 0 20 55 42 15 3 25.7 45 179 -73 21 39 59 20 11 59 21 47 39 20 4 31 -0.90 134 0 0 20 29 56 15 3 16.7 45 180 -74 21 14 1 19 46 24 21 21 39 19 38 59 -0.89 135 0 0 20 4 44 15 3 7.7 46 181 -74 20 48 37 19 21 24 20 56 13 19 14 0 -0.89 136 0 0 19 40 7 15 2 58.6 46 183 -75 20 23 48 18 56 59 20 31 22 18 49 37 -0.89 137 0 0 19 16 6 15 2 49.5 47 184 -75 19 59 35 18 33 9 20 7 7 18 25 49 -0.89 138 0 0 18 52 40 15 2 40.4 47 185 -76 19 35 58 18 9 54 19 43 28 18 2 35 -0.89 139 0 0 18 29 50 15 2 31.3 47 187 -76 19 12 57 17 47 14 19 20 25 17 39 58 -0.89 140 0 0 18 7 36 15 2 22.1 47 188 -76 18 50 33 17 25 10 18 57 59 17 17 56 -0.89 141 0 0 17 45 59 15 2 12.9 48 189 -76 18 28 45 17 3 43 18 36 9 16 56 30 -0.89 142 0 0 17 24 58 15 2 3.7 48 191 -76 18 7 34 16 42 51 18 14 56 16 35 40 -0.89 143 0 0 17 4 33 15 1 54.5 48 192 -76 17 47 0 16 22 36 17 54 20 16 15 27 -0.89 144 0 0 16 44 46 15 1 45.3 48 193 -76 17 27 3 16 2 58 17 34 22 15 55 50 -0.89 145 0 0 16 25 35 15 1 36.1 48 195 -76 17 7 43 15 43 56 17 15 1 15 36 49 -0.89 146 0 0 16 7 2 15 1 26.9 48 196 -76 16 49 1 15 25 31 16 56 17 15 18 26 -0.89 147 0 0 15 49 6 15 1 17.7 48 198 -75 16 30 57 15 7 44 16 38 11 15 0 40 -0.89 148 0 0 15 31 48 15 1 8.5 48 199 -75 16 13 30 14 50 33 16 20 43 14 43 31 -0.89 149 0 0 15 15 7 15 0 59.3 48 200 -74 15 56 41 14 34 0 16 3 53 14 26 58 -0.89 150 0 0 14 59 3 15 0 50.2 48 202 -74 15 40 30 14 18 4 15 47 40 14 11 3 -0.89 151 0 0 14 43 38 15 0 41.1 48 203 -73 15 24 57 14 2 45 15 32 6 13 55 46 -0.89 152 0 0 14 28 50 15 0 32.1 48 204 -73 15 10 3 13 48 4 15 17 10 13 41 6 -0.89 153 0 0 14 14 40 15 0 23.0 48 205 -72 14 55 46 13 34 0 15 2 53 13 27 4 -0.89 154 0 0 14 1 8 15 0 14.1 47 207 -71 14 42 8 13 20 34 14 49 14 13 13 39 -0.89 155 0 0 13 48 14 15 0 5.1 47 208 -70 14 29 8 13 7 46 14 36 13 13 0 52 -0.89 156 0 0 13 35 59 14 59 56.2 47 209 -70 14 16 47 12 55 36 14 23 51 12 48 42 -0.89 157 0 0 13 24 21 14 59 47.4 47 210 -69 14 5 4 12 44 4 14 12 7 12 37 11 -0.89 158 0 0 13 13 22 14 59 38.6 46 211 -68 13 54 0 12 33 10 14 1 2 12 26 17 -0.89 159 0 0 13 3 1 14 59 29.9 46 213 -67 13 43 34 12 22 53 13 50 35 12 16 2 -0.89 160 0 0 12 53 18 14 59 21.2 46 214 -67 13 33 47 12 13 15 13 40 48 12 6 24 -0.89 161 0 0 12 44 14 14 59 12.6 45 215 -66 13 24 39 12 4 15 13 31 39 11 57 25 -0.89 162 0 0 12 35 48 14 59 4.1 45 216 -65 13 16 10 11 55 52 13 23 8 11 49 3 -0.89 163 0 0 12 28 1 14 58 55.7 44 217 -64 13 8 19 11 48 9 13 15 17 11 41 20 -0.89 164 0 0 12 20 53 14 58 47.3 44 218 -63 13 1 7 11 41 3 13 8 5 11 34 15 -0.89 165 0 0 12 14 22 14 58 39.0 43 219 -62 12 54 34 11 34 36 13 1 32 11 27 48 -0.90 166 0 0 12 8 31 14 58 30.8 43 220 -61 12 48 40 11 28 47 12 55 37 11 21 59 -0.90 167 0 0 12 3 18 14 58 22.6 42 221 -60 12 43 26 11 23 36 12 50 22 11 16 49 -0.90 168 0 0 11 58 44 14 58 14.6 42 222 -59 12 38 50 11 19 4 12 45 46 11 12 17 -0.90 169 0 0 11 54 49 14 58 6.6 41 222 -59 12 34 53 11 15 10 12 41 49 11 8 24 -0.90 170 0 0 11 51 33 14 57 58.8 40 223 -58 12 31 35 11 11 55 12 38 31 11 5 8 -0.90 171 0 0 11 48 55 14 57 51.0 40 224 -57 12 28 57 11 9 18 12 35 52 11 2 32 -0.90 172 0 0 11 46 57 14 57 43.4 39 225 -56 12 26 58 11 7 20 12 33 53 11 0 34 -0.90 173 0 0 11 45 37 14 57 35.8 39 226 -55 12 25 38 11 6 1 12 32 33 10 59 15 -0.90 174 0 0 11 44 57 14 57 28.4 38 226 -54 12 24 58 11 5 20 12 31 53 10 58 34 -0.90 175 0 0 11 44 55 14 57 21.0 37 227 -53 12 24 57 11 5 19 12 31 52 10 58 32 -0.90 176 0 0 11 45 33 14 57 13.8 37 228 -52 12 25 35 11 5 56 12 32 30 10 59 9 -0.90 177 0 0 11 46 50 14 57 6.7 36 228 -51 12 26 53 11 7 12 12 33 49 11 0 25 -0.90 178 0 0 11 48 46 14 56 59.7 35 229 -50 12 28 51 11 9 6 12 35 46 11 2 20 -0.90 179 0 0 11 51 22 14 56 52.9 34 230 -49 12 31 28 11 11 40 12 38 24 11 4 53 -0.90 180 0 0 11 54 37 14 56 46.1 34 230 -48 12 34 45 11 14 53 12 41 41 11 8 6 -0.90 -179 0 0 11 58 31 14 56 39.5 33 231 -47 12 38 41 11 18 45 12 45 38 11 11 58 -0.90 -178 0 0 12 3 5 14 56 33.0 32 231 -46 12 43 18 11 23 17 12 50 15 11 16 29 -0.90 -177 0 0 12 8 18 14 56 26.7 31 232 -45 12 48 34 11 28 27 12 55 32 11 21 39 -0.91 -176 0 0 12 14 11 14 56 20.5 30 232 -44 12 54 31 11 34 17 13 1 29 11 27 28 -0.91 -175 0 0 12 20 44 14 56 14.4 30 233 -43 13 1 7 11 40 46 13 8 6 11 33 57 -0.91 -174 0 0 12 27 56 14 56 8.5 29 233 -43 13 8 24 11 47 55 13 15 23 11 41 5 -0.91 -173 0 0 12 35 49 14 56 2.7 28 234 -42 13 16 20 11 55 43 13 23 21 11 48 52 -0.91 -172 0 0 12 44 21 14 55 57.1 27 234 -41 13 24 57 12 4 11 13 31 59 11 57 19 -0.91 -171 0 0 12 53 33 14 55 51.6 26 235 -40 13 34 14 12 13 18 13 41 17 12 6 26 -0.91 -170 0 0 13 3 26 14 55 46.3 25 235 -39 13 44 12 12 23 6 13 51 15 12 16 12 -0.91 -169 0 0 13 13 58 14 55 41.1 24 235 -38 13 54 50 12 33 32 14 1 54 12 26 38 -0.91 -168 0 0 13 25 11 14 55 36.1 24 236 -37 14 6 9 12 44 39 14 13 14 12 37 44 -0.91 -167 0 0 13 37 3 14 55 31.3 23 236 -36 14 18 8 12 56 26 14 25 14 12 49 29 -0.91 -166 0 0 13 49 36 14 55 26.6 22 237 -35 14 30 47 13 8 52 14 37 55 13 1 55 -0.92 -165 0 0 14 2 50 14 55 22.2 21 237 -34 14 44 8 13 21 59 14 51 17 13 15 0 -0.92 -164 0 0 14 16 43 14 55 17.8 20 237 -33 14 58 9 13 35 45 15 5 19 13 28 45 -0.92 -163 0 0 14 31 17 14 55 13.7 19 238 -32 15 12 51 13 50 12 15 20 2 13 43 11 -0.92 -162 0 0 14 46 32 14 55 9.8 18 238 -31 15 28 13 14 5 18 15 35 26 13 58 16 -0.92 -161 0 0 15 2 27 14 55 6.0 17 238 -30 15 44 16 14 21 5 15 51 31 14 14 1 -0.92 -160 0 0 15 19 2 14 55 2.4 16 239 -29 16 1 0 14 37 32 16 8 16 14 30 27 -0.92 -159 0 0 15 36 18 14 54 59.1 15 239 -28 16 18 25 14 54 39 16 25 43 14 47 32 -0.93 -158 0 0 15 54 14 14 54 55.9 14 239 -27 16 36 31 15 12 26 16 43 50 15 5 18 -0.93 -157 0 0 16 12 50 14 54 52.9 13 240 -26 16 55 17 15 30 53 17 2 38 15 23 43 -0.93 -156 0 0 16 32 7 14 54 50.1 12 240 -25 17 14 44 15 50 0 17 22 7 15 42 48 -0.93 -155 0 0 16 52 4 14 54 47.5 11 240 -24 17 34 52 16 9 47 17 42 16 16 2 34 -0.94 -154 0 0 17 12 42 14 54 45.2 10 241 -23 17 55 40 16 30 14 18 3 6 16 22 59 -0.94 -153 0 0 17 33 59 14 54 43.0 9 241 -22 18 17 9 16 51 20 18 24 37 16 44 4 -0.94 -152 0 0 17 55 57 14 54 41.1 8 241 -21 18 39 18 17 13 7 18 46 48 17 5 48 -0.95 -151 0 0 18 18 34 14 54 39.4 7 242 -20 19 2 7 17 35 33 19 9 40 17 28 12 -0.95 -150 0 0 18 41 51 14 54 37.9 6 242 -19 19 25 37 17 58 38 19 33 11 17 51 16 -0.96 -149 0 0 19 5 48 14 54 36.6 5 242 -18 19 49 46 18 22 23 19 57 23 18 14 58 -0.97 -148 0 0 19 30 24 14 54 35.6 4 243 -17 20 14 35 18 46 47 20 22 14 18 39 20 -0.98 -147 0 0 19 55 40 14 54 34.7 3 243 -17 20 40 4 19 11 49 20 47 45 19 4 21 -1.01 -146 0 0 20 21 34 14 54 34.2 2 243 -16 21 6 12 19 37 31 21 13 55 19 30 0 -1.05 -145 0 0 20 48 7 14 54 33.8 1 244 -15 21 32 58 20 3 50 21 40 45 19 56 17 -1.18 -144 0 0 21 15 18 14 54 33.7 0 244 -14 .. .. .. 20 30 48 .. .. .. 20 23 12 -11.22 Uncertainty in time = +/- 4 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: UCAC4 330-063617 * constellation : Crater * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 11 05 37.0539 DE: -24 01 38.749 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 11 05 37.0539 DE: -24 01 38.754 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 11.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (683) Lanzia asteroid class: approx. diameter [km]: 109 approx. diameter ["]: 0.074 distance from Earth [AU]: 2.02490 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#98 date of fit: 2023 Feb 07 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): 0.033", 0.006", 113.718° remarks: * orbital elements for (683)Lanzia : Mean anomaly = 354.5861630689 deg Arg. of pericenter = 280.6413654205 deg Long. of node = 259.6497907328 deg Inclination = 18.5241991322 deg Eccentricity = 0.0584422494 Semimajor axis = 3.1156035906 AU Perihelion dist = 2.9335207087 AU Mag: H = 8.74, G = 0.15 Epoch of elements : MJD 60012.62590278 TDT (2023 Mar 09.6259) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#982023Feb07,9.30,2023,3,9,15.021640,0.210794,0.631447,-6.300177,2.105890,0.000292,0.002799,0.000001,0.000000 134.3217,-24.1535,-42.69,-4.44,False UCAC4 330-063617,11.09362609,-24.0274301,0.00,11.04,0.00,0.0,0,,11.11270020,-24.1534560,2.34,0.00,0,0,0 683,Lanzia,13.24,109.4,2.0249,0,0,-1.999,9.15,,6.8,0 0,354.4740,2023,3,9,280.6414,259.6498,18.5242,0.05844,3.11560,2.93352,8.75,5.0,0.15 1.086,0.0330,0.0057,114,0.0064,Known errors,-1.00,-1,-1,-1 20230309_063617,59990.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:46 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org