IOTA/IOTA-ES occultation update for (150) Nuwa / TYC 6194-00739-1 event on 2023 Feb 11, 05:09 UT Visible from Africa Summary ------- On 2023 Feb 11 UT, the 137.2 km diameter asteroid (150) Nuwa will occult a 9.2 mag star in the constellation Libra for observers along a path across Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.36 mag to 14.57 mag (the magnitude of the asteroid) for at most 6.970 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 Feb 11, 05:05 - 2023 Feb 11, 05:13 * geocentric midpoint of event [JD]: 2459986.71466075 * magnitude of target star: 9.22 * magnitude drop [mag]: 5.36 * estimated maximum duration [s]: 6.970 * Moon: 75 % sunlit, 37° distance * Sun: 83° distance * rough path description: Africa The occultation path -------------------- * approximate projected width [km]: 199 * 1 sigma uncertainty interval [path widths]: +/- 0.04 * 1 sigma uncertainty interval [seconds]: +/- 1.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.016, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.016", 0.002", 101°) * approx speed of asteroid's shadow [km/s]: 19.6753 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6194-00739-1 by 150 Nuwa on 2023 Feb 11 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 - 43 0 0 51 56 14 5 5 24.4 0 123 -45 50 53 8 .. .. .. 50 47 59 .. .. .. .... - 42 0 0 51 32 16 5 5 24.5 1 123 -45 50 29 10 52 36 51 50 24 1 52 42 16 -0.30 - 41 0 0 51 8 5 5 5 24.6 2 124 -45 50 4 59 52 12 40 49 59 50 52 18 5 -0.65 - 40 0 0 50 43 42 5 5 24.8 2 125 -45 49 40 36 51 48 16 49 35 27 51 53 41 -0.78 - 39 0 0 50 19 6 5 5 25.1 3 126 -45 49 16 2 51 23 40 49 10 53 51 29 5 -0.84 - 38 0 0 49 54 20 5 5 25.5 4 127 -44 48 51 17 50 58 52 48 46 8 51 4 16 -0.88 - 37 0 0 49 29 23 5 5 25.9 5 127 -44 48 26 21 50 33 53 48 21 12 50 39 17 -0.91 - 36 0 0 49 4 15 5 5 26.5 5 128 -44 48 1 16 50 8 43 47 56 7 50 14 7 -0.93 - 35 0 0 48 38 59 5 5 27.1 6 129 -44 47 36 2 49 43 24 47 30 54 49 48 48 -0.94 - 34 0 0 48 13 34 5 5 27.8 7 130 -43 47 10 40 49 17 56 47 5 32 49 23 19 -0.95 - 33 0 0 47 48 1 5 5 28.7 8 130 -43 46 45 11 48 52 19 46 40 3 48 57 42 -0.96 - 32 0 0 47 22 21 5 5 29.6 9 131 -43 46 19 35 48 26 35 46 14 27 48 31 58 -0.97 - 31 0 0 46 56 34 5 5 30.6 9 132 -42 45 53 52 48 0 44 45 48 45 48 6 6 -0.98 - 30 0 0 46 30 42 5 5 31.7 10 133 -42 45 28 5 47 34 47 45 22 58 47 40 9 -0.98 - 29 0 0 46 4 46 5 5 32.9 11 133 -41 45 2 13 47 8 44 44 57 6 47 14 6 -0.99 - 28 0 0 45 38 45 5 5 34.3 12 134 -41 44 36 18 46 42 38 44 31 11 46 47 59 -0.99 - 27 0 0 45 12 41 5 5 35.7 13 135 -40 44 10 20 46 16 28 44 5 14 46 21 48 -0.99 - 26 0 0 44 46 35 5 5 37.2 13 136 -40 43 44 19 45 50 15 43 39 14 45 55 35 -1.00 - 25 0 0 44 20 27 5 5 38.9 14 136 -39 43 18 18 45 24 0 43 13 13 45 29 20 -1.00 - 24 0 0 43 54 19 5 5 40.6 15 137 -39 42 52 17 44 57 45 42 47 12 45 3 3 -1.00 - 23 0 0 43 28 10 5 5 42.4 16 138 -38 42 26 16 44 31 29 42 21 12 44 36 47 -1.01 - 22 0 0 43 2 3 5 5 44.4 17 139 -38 42 0 16 44 5 14 41 55 13 44 10 31 -1.01 - 21 0 0 42 35 58 5 5 46.5 17 139 -37 41 34 18 43 39 1 41 29 16 43 44 17 -1.01 - 20 0 0 42 9 56 5 5 48.6 18 140 -37 41 8 24 43 12 50 41 3 22 43 18 6 -1.01 - 19 0 0 41 43 57 5 5 50.9 19 141 -36 40 42 34 42 46 42 40 37 32 42 51 58 -1.01 - 18 0 0 41 18 3 5 5 53.3 20 142 -35 40 16 48 42 20 39 40 11 47 42 25 54 -1.02 - 17 0 0 40 52 15 5 5 55.8 21 143 -35 39 51 8 41 54 41 39 46 8 41 59 55 -1.02 - 16 0 0 40 26 32 5 5 58.3 21 143 -34 39 25 34 41 28 49 39 20 35 41 34 2 -1.02 - 15 0 0 40 0 57 5 6 1.0 22 144 -33 39 0 8 41 3 4 38 55 9 41 8 16 -1.02 - 14 0 0 39 35 29 5 6 3.8 23 145 -33 38 34 50 40 37 27 38 29 52 40 42 38 -1.02 - 13 0 0 39 10 11 5 6 6.8 24 146 -32 38 9 40 40 11 59 38 4 44 40 17 9 -1.02 - 12 0 0 38 45 2 5 6 9.8 25 147 -31 37 44 41 39 46 40 37 39 45 39 51 49 -1.02 - 11 0 0 38 20 4 5 6 12.9 25 147 -31 37 19 52 39 21 31 37 14 57 39 26 40 -1.03 - 10 0 0 37 55 17 5 6 16.1 26 148 -30 36 55 15 38 56 33 36 50 20 39 1 41 -1.03 - 9 0 0 37 30 42 5 6 19.4 27 149 -29 36 30 50 38 31 48 36 25 56 38 36 55 -1.03 - 8 0 0 37 6 20 5 6 22.8 28 150 -28 36 6 38 38 7 15 36 1 45 38 12 21 -1.03 - 7 0 0 36 42 12 5 6 26.3 28 151 -27 35 42 40 37 42 57 35 37 48 37 48 2 -1.03 - 6 0 0 36 18 18 5 6 29.9 29 152 -27 35 18 57 37 18 52 35 14 5 37 23 56 -1.03 - 5 0 0 35 54 40 5 6 33.6 30 153 -26 34 55 28 36 55 3 34 50 37 37 0 6 -1.03 - 4 0 0 35 31 17 5 6 37.4 31 154 -25 34 32 16 36 31 30 34 27 26 36 36 32 -1.03 - 3 0 0 35 8 11 5 6 41.2 31 155 -24 34 9 20 36 8 14 34 4 31 36 13 15 -1.03 - 2 0 0 34 45 23 5 6 45.2 32 156 -23 33 46 42 35 45 15 33 41 54 35 50 15 -1.03 - 1 0 0 34 22 53 5 6 49.2 33 156 -22 33 24 22 35 22 34 33 19 35 35 27 33 -1.04 0 0 0 34 0 42 5 6 53.4 33 157 -22 33 2 21 35 0 12 32 57 35 35 5 11 -1.04 1 0 0 33 38 50 5 6 57.6 34 158 -21 32 40 40 34 38 10 32 35 54 34 43 7 -1.04 2 0 0 33 17 19 5 7 1.9 35 159 -20 32 19 18 34 16 28 32 14 33 34 21 24 -1.04 3 0 0 32 56 8 5 7 6.2 35 161 -19 31 58 18 33 55 7 31 53 33 34 0 2 -1.04 4 0 0 32 35 19 5 7 10.6 36 162 -18 31 37 38 33 34 7 31 32 55 33 39 2 -1.04 5 0 0 32 14 52 5 7 15.1 37 163 -17 31 17 21 33 13 29 31 12 38 33 18 23 -1.04 6 0 0 31 54 47 5 7 19.7 37 164 -16 30 57 25 32 53 14 30 52 44 32 58 8 -1.04 7 0 0 31 35 5 5 7 24.3 38 165 -15 30 37 53 32 33 23 30 33 12 32 38 15 -1.04 8 0 0 31 15 47 5 7 29.0 38 166 -15 30 18 45 32 13 54 30 14 4 32 18 46 -1.04 9 0 0 30 56 53 5 7 33.7 39 167 -14 30 0 0 31 54 51 29 55 20 31 59 41 -1.04 10 0 0 30 38 24 5 7 38.5 39 168 -13 29 41 40 31 36 12 29 37 1 31 41 1 -1.04 11 0 0 30 20 20 5 7 43.4 40 169 -12 29 23 44 31 17 58 29 19 6 31 22 47 -1.05 12 0 0 30 2 41 5 7 48.3 40 171 -11 29 6 15 31 0 10 29 1 37 31 4 58 -1.05 13 0 0 29 45 28 5 7 53.2 40 172 -10 28 49 11 30 42 48 28 44 34 30 47 36 -1.05 14 0 0 29 28 42 5 7 58.2 41 173 -9 28 32 33 30 25 53 28 27 57 30 30 40 -1.05 15 0 0 29 12 23 5 8 3.3 41 174 -8 28 16 22 30 9 25 28 11 47 30 14 11 -1.05 16 0 0 28 56 31 5 8 8.3 42 176 -7 28 0 38 29 53 25 27 56 4 29 58 10 -1.05 17 0 0 28 41 7 5 8 13.4 42 177 -6 27 45 22 29 37 52 27 40 48 29 42 36 -1.05 18 0 0 28 26 10 5 8 18.6 42 178 -5 27 30 33 29 22 47 27 26 0 29 27 31 -1.05 19 0 0 28 11 42 5 8 23.7 42 179 -4 27 16 13 29 8 11 27 11 40 29 12 54 -1.05 20 0 0 27 57 43 5 8 28.9 43 181 -3 27 2 21 28 54 4 26 57 48 28 58 47 -1.05 21 0 0 27 44 12 5 8 34.1 43 182 -3 26 48 57 28 40 26 26 44 26 28 45 8 -1.05 22 0 0 27 31 11 5 8 39.3 43 183 -2 26 36 3 28 27 18 26 31 32 28 31 59 -1.05 23 0 0 27 18 39 5 8 44.6 43 185 -1 26 23 38 28 14 39 26 19 7 28 19 20 -1.05 24 0 0 27 6 37 5 8 49.8 43 186 0 26 11 42 28 2 30 26 7 12 28 7 10 -1.05 25 0 0 26 55 5 5 8 55.1 43 187 1 26 0 16 27 50 52 25 55 47 27 55 31 -1.05 26 0 0 26 44 3 5 9 0.3 43 189 2 25 49 20 27 39 44 25 44 51 27 44 23 -1.05 27 0 0 26 33 32 5 9 5.6 43 190 3 25 38 54 27 29 6 25 34 26 27 33 45 -1.05 28 0 0 26 23 31 5 9 10.9 43 191 4 25 28 59 27 19 0 25 24 31 27 23 38 -1.06 29 0 0 26 14 1 5 9 16.1 43 193 5 25 19 34 27 9 25 25 15 6 27 14 2 -1.06 30 0 0 26 5 2 5 9 21.4 43 194 6 25 10 40 27 0 21 25 6 13 27 4 58 -1.06 31 0 0 25 56 35 5 9 26.6 43 195 7 25 2 17 26 51 48 24 57 50 26 56 24 -1.06 32 0 0 25 48 38 5 9 31.8 43 197 8 24 54 25 26 43 47 24 49 58 26 48 23 -1.06 33 0 0 25 41 13 5 9 37.1 43 198 9 24 47 4 26 36 17 24 42 38 26 40 53 -1.06 34 0 0 25 34 20 5 9 42.3 43 199 9 24 40 14 26 29 20 24 35 48 26 33 55 -1.06 35 0 0 25 27 58 5 9 47.4 43 201 10 24 33 56 26 22 54 24 29 30 26 27 30 -1.06 36 0 0 25 22 8 5 9 52.6 42 202 11 24 28 9 26 17 1 24 23 44 26 21 36 -1.06 37 0 0 25 16 50 5 9 57.7 42 203 12 24 22 54 26 11 40 24 18 29 26 16 14 -1.06 38 0 0 25 12 3 5 10 2.8 42 204 13 24 18 11 26 6 51 24 13 46 26 11 25 -1.06 39 0 0 25 7 49 5 10 7.9 41 206 14 24 13 59 26 2 34 24 9 34 26 7 8 -1.06 40 0 0 25 4 7 5 10 12.9 41 207 15 24 10 19 25 58 49 24 5 54 26 3 23 -1.06 41 0 0 25 0 57 5 10 17.9 41 208 16 24 7 11 25 55 37 24 2 46 26 0 11 -1.06 42 0 0 24 58 19 5 10 22.8 40 209 16 24 4 35 25 52 58 24 0 10 25 57 32 -1.06 43 0 0 24 56 14 5 10 27.7 40 210 17 24 2 30 25 50 51 23 58 6 25 55 25 -1.06 44 0 0 24 54 40 5 10 32.6 39 211 18 24 0 58 25 49 16 23 56 34 25 53 50 -1.06 45 0 0 24 53 39 5 10 37.4 39 212 19 23 59 57 25 48 14 23 55 33 25 52 48 -1.06 46 0 0 24 53 10 5 10 42.2 38 213 20 23 59 29 25 47 45 23 55 5 25 52 18 -1.06 47 0 0 24 53 13 5 10 46.9 38 214 21 23 59 32 25 47 48 23 55 8 25 52 21 -1.06 48 0 0 24 53 49 5 10 51.5 37 215 22 24 0 8 25 48 23 23 55 43 25 52 57 -1.06 49 0 0 24 54 56 5 10 56.1 37 216 22 24 1 15 25 49 31 23 56 51 25 54 5 -1.06 50 0 0 24 56 36 5 11 0.7 36 217 23 24 2 54 25 51 12 23 58 30 25 55 45 -1.06 51 0 0 24 58 47 5 11 5.1 36 218 24 24 5 4 25 53 24 24 0 40 25 57 58 -1.06 52 0 0 25 1 31 5 11 9.5 35 219 25 24 7 47 25 56 9 24 3 22 26 0 43 -1.06 53 0 0 25 4 46 5 11 13.9 34 220 25 24 11 0 25 59 26 24 6 36 26 4 0 -1.06 54 0 0 25 8 33 5 11 18.1 34 221 26 24 14 46 26 3 15 24 10 21 26 7 49 -1.06 55 0 0 25 12 52 5 11 22.3 33 222 27 24 19 3 26 7 36 24 14 38 26 12 10 -1.06 56 0 0 25 17 43 5 11 26.4 32 223 28 24 23 51 26 12 29 24 19 26 26 17 4 -1.06 57 0 0 25 23 5 5 11 30.5 32 224 28 24 29 10 26 17 54 24 24 45 26 22 28 -1.06 58 0 0 25 28 58 5 11 34.4 31 224 29 24 35 1 26 23 50 24 30 35 26 28 25 -1.06 59 0 0 25 35 23 5 11 38.3 30 225 30 24 41 23 26 30 18 24 36 57 26 34 54 -1.06 60 0 0 25 42 19 5 11 42.1 30 226 30 24 48 15 26 37 18 24 43 49 26 41 53 -1.06 61 0 0 25 49 46 5 11 45.8 29 227 31 24 55 38 26 44 49 24 51 12 26 49 24 -1.06 62 0 0 25 57 44 5 11 49.4 28 227 32 25 3 32 26 52 51 24 59 6 26 57 27 -1.06 63 0 0 26 6 12 5 11 52.9 27 228 32 25 11 56 27 1 24 25 7 29 27 6 0 -1.06 64 0 0 26 15 11 5 11 56.4 27 229 33 25 20 51 27 10 27 25 16 23 27 15 4 -1.06 65 0 0 26 24 40 5 11 59.7 26 229 34 25 30 15 27 20 1 25 25 48 27 24 39 -1.06 66 0 0 26 34 39 5 12 2.9 25 230 34 25 40 9 27 30 6 25 35 41 27 34 43 -1.06 67 0 0 26 45 9 5 12 6.1 24 231 35 25 50 33 27 40 40 25 46 5 27 45 19 -1.06 68 0 0 26 56 7 5 12 9.1 23 231 35 26 1 27 27 51 45 25 56 58 27 56 24 -1.06 69 0 0 27 7 35 5 12 12.1 22 232 36 26 12 49 28 3 19 26 8 20 28 7 58 -1.06 70 0 0 27 19 33 5 12 14.9 22 233 36 26 24 40 28 15 23 26 20 10 28 20 2 -1.06 71 0 0 27 31 59 5 12 17.7 21 233 37 26 37 0 28 27 55 26 32 30 28 32 36 -1.06 72 0 0 27 44 53 5 12 20.3 20 234 37 26 49 48 28 40 57 26 45 17 28 45 38 -1.06 73 0 0 27 58 16 5 12 22.8 19 234 38 27 3 5 28 54 27 26 58 33 28 59 8 -1.06 74 0 0 28 12 7 5 12 25.3 18 235 38 27 16 49 29 8 25 27 12 17 29 13 7 -1.07 75 0 0 28 26 26 5 12 27.6 17 236 38 27 31 0 29 22 51 27 26 28 29 27 34 -1.07 76 0 0 28 41 12 5 12 29.8 17 236 39 27 45 39 29 37 45 27 41 6 29 42 28 -1.07 77 0 0 28 56 25 5 12 31.9 16 237 39 28 0 45 29 53 5 27 56 11 29 57 49 -1.07 78 0 0 29 12 5 5 12 33.9 15 237 39 28 16 17 30 8 53 28 11 42 30 13 38 -1.07 79 0 0 29 28 10 5 12 35.7 14 238 40 28 32 15 30 25 7 28 27 40 30 29 52 -1.07 80 0 0 29 44 42 5 12 37.5 13 238 40 28 48 38 30 41 46 28 44 3 30 46 32 -1.07 81 0 0 30 1 38 5 12 39.1 12 239 40 29 5 27 30 58 52 29 0 51 31 3 39 -1.07 82 0 0 30 19 0 5 12 40.6 11 239 40 29 22 40 31 16 23 29 18 3 31 21 11 -1.07 83 0 0 30 36 47 5 12 42.0 10 240 40 29 40 18 31 34 19 29 35 40 31 39 8 -1.08 84 0 0 30 54 58 5 12 43.3 9 241 41 29 58 20 31 52 39 29 53 42 31 57 28 -1.08 85 0 0 31 13 33 5 12 44.5 8 241 41 30 16 46 32 11 23 30 12 7 32 16 13 -1.08 86 0 0 31 32 31 5 12 45.5 8 242 41 30 35 35 32 30 31 30 30 55 32 35 21 -1.08 87 0 0 31 51 51 5 12 46.4 7 242 41 30 54 46 32 50 1 30 50 6 32 54 53 -1.09 88 0 0 32 11 34 5 12 47.2 6 243 41 31 14 20 33 9 53 31 9 39 33 14 46 -1.10 89 0 0 32 31 38 5 12 47.9 5 243 41 31 34 15 33 30 8 31 29 33 33 35 1 -1.10 90 0 0 32 52 4 5 12 48.5 4 244 41 31 54 31 33 50 43 31 49 48 33 55 38 -1.12 91 0 0 33 12 50 5 12 48.9 3 244 41 32 15 8 34 11 40 32 10 24 34 16 35 -1.14 92 0 0 33 33 56 5 12 49.3 2 245 41 32 36 4 34 32 56 32 31 20 34 37 52 -1.18 93 0 0 33 55 22 5 12 49.5 1 245 41 32 57 20 34 54 32 32 52 35 34 59 29 -1.27 94 0 0 34 17 6 5 12 49.6 0 246 41 33 18 54 .. .. .. 33 14 9 .. .. .. -1.87 Uncertainty in time = +/- 2 secs Prediction of 2022 Dec 13.0 Data for the target star ------------------------ * name: TYC 6194-00739-1 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 15 48 47.9179 DE: -19 24 46.344 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 15 48 47.9181 DE: -19 24 46.345 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (150) Nuwa asteroid class: approx. diameter [km]: 137 approx. diameter ["]: 0.059 distance from Earth [AU]: 3.21370 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#107 date of fit: 2022 Nov 25 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): 0.016", 0.002", 100.717° remarks: * orbital elements for (150)Nuwa : Mean anomaly = 231.8031664944 deg Arg. of pericenter = 153.9026782615 deg Long. of node = 206.1045334834 deg Inclination = 2.2019919208 deg Eccentricity = 0.1237433935 Semimajor axis = 2.9845307504 AU Perihelion dist = 2.6152147875 AU Mag: H = 8.53, G = 0.15 Epoch of elements : MJD 59986.21465278 TDT (2023 Feb 11.2147) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1072022Nov25,6.97,2023,2,11,5.151858,0.124130,0.714198,10.940635,-1.905379,-0.005803,0.001277,0.000000,0.000000 19.2402,-19.4833,106.27,-14.11,False TYC 6194-00739-1,15.81331051,-19.4128733,0.00,9.22,0.00,0.0,0,,15.83534222,-19.4833394,5.36,0.00,0,0,0 150,Nuwa,14.57,137.2,3.2137,0,0,2.117,-5.21,,7.8,0 0,231.7621,2023,2,11,153.9027,206.1045,2.2020,0.12374,2.98453,2.61521,8.56,5.0,0.15 1.041,0.0163,0.0024,101,0.0024,Known errors,-1.00,-1,-1,-1 20230211_0739-1,59926.02 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Dec 13, 00:26 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org