IOTA/IOTA-ES occultation update for (218) Bianca / UCAC4 466-058011 event on 2023 Jun 22, 03:00 UT Visible from Europe, SE USA, Mexico Summary ------- On 2023 Jun 22 UT, the 59.8 km diameter asteroid (218) Bianca will occult a 12.3 mag star in the constellation Ophiuchus for observers along a path across Europe, SE USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.66 mag to 12.09 mag (the magnitude of the asteroid) for at most 7.560 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: 99 * date and approx. time of event: 2023 Jun 22, 02:47 - 2023 Jun 22, 03:12 * geocentric midpoint of event [JD]: 2460117.62532737 * magnitude of target star: 12.29 * magnitude drop [mag]: 0.66 * estimated maximum duration [s]: 7.560 * Moon: 14 % sunlit, 111° distance * Sun: 148° distance * rough path description: Europe, SE USA, Mexico The occultation path -------------------- * approximate projected width [km]: 66 * 1 sigma uncertainty interval [path widths]: +/- 0.13 * 1 sigma uncertainty interval [seconds]: +/- 2.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.022, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.022", 0.003", 93°) * approx speed of asteroid's shadow [km/s]: 7.9116 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 466-058011 by 218 Bianca on 2023 Jun 22 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 -156 0 0 10 36 14 3 12 40.1 1 87 21 10 54 8 10 18 22 10 58 53 10 13 39 .... -155 0 0 10 39 53 3 12 39.8 2 87 20 10 57 47 10 22 1 11 2 32 10 17 18 -0.34 -154 0 0 10 43 48 3 12 39.2 3 87 19 11 1 43 10 25 56 11 6 28 10 21 13 -0.38 -153 0 0 10 48 0 3 12 38.4 4 88 18 11 5 55 10 30 8 11 10 40 10 25 25 -0.40 -152 0 0 10 52 29 3 12 37.2 5 88 17 11 10 24 10 34 36 11 15 8 10 29 53 -0.42 -151 0 0 10 57 13 3 12 35.9 6 88 16 11 15 8 10 39 20 11 19 53 10 34 37 -0.42 -150 0 0 11 2 14 3 12 34.2 7 88 16 11 20 9 10 44 20 11 24 54 10 39 37 -0.43 -149 0 0 11 7 30 3 12 32.4 8 88 15 11 25 26 10 49 37 11 30 11 10 44 53 -0.43 -148 0 0 11 13 2 3 12 30.2 9 88 14 11 30 59 10 55 9 11 35 44 10 50 25 -0.43 -147 0 0 11 18 50 3 12 27.8 10 89 13 11 36 47 11 0 56 11 41 32 10 56 12 -0.44 -146 0 0 11 24 54 3 12 25.2 11 89 12 11 42 51 11 6 59 11 47 36 11 2 15 -0.44 -145 0 0 11 31 12 3 12 22.3 11 89 11 11 49 10 11 13 18 11 53 55 11 8 34 -0.44 -144 0 0 11 37 46 3 12 19.2 12 89 10 11 55 44 11 19 51 12 0 30 11 15 7 -0.44 -143 0 0 11 44 35 3 12 15.8 13 90 10 12 2 34 11 26 40 12 7 19 11 21 56 -0.44 -142 0 0 11 51 39 3 12 12.2 14 90 9 12 9 38 11 33 43 12 14 24 11 28 59 -0.44 -141 0 0 11 58 58 3 12 8.3 15 90 8 12 16 57 11 41 1 12 21 43 11 36 17 -0.44 -140 0 0 12 6 31 3 12 4.2 16 90 7 12 24 30 11 48 34 12 29 16 11 43 49 -0.44 -139 0 0 12 14 18 3 11 59.9 17 90 6 12 32 18 11 56 21 12 37 4 11 51 36 -0.44 -138 0 0 12 22 20 3 11 55.3 18 91 5 12 40 20 12 4 22 12 45 7 11 59 37 -0.45 -137 0 0 12 30 35 3 11 50.5 19 91 4 12 48 37 12 12 37 12 53 23 12 7 52 -0.45 -136 0 0 12 39 5 3 11 45.4 20 91 4 12 57 6 12 21 5 13 1 53 12 16 20 -0.45 -135 0 0 12 47 48 3 11 40.2 21 92 3 13 5 50 12 29 48 13 10 37 12 25 3 -0.45 -134 0 0 12 56 44 3 11 34.7 22 92 2 13 14 47 12 38 44 13 19 34 12 33 58 -0.45 -133 0 0 13 5 54 3 11 28.9 23 92 1 13 23 57 12 47 53 13 28 44 12 43 7 -0.45 -132 0 0 13 15 16 3 11 23.0 24 92 0 13 33 20 12 57 15 13 38 7 12 52 29 -0.45 -131 0 0 13 24 52 3 11 16.8 25 93 0 13 42 56 13 6 50 13 47 44 13 2 4 -0.45 -130 0 0 13 34 40 3 11 10.5 26 93 -1 13 52 45 13 16 37 13 57 32 13 11 51 -0.45 -129 0 0 13 44 40 3 11 3.9 27 93 -2 14 2 46 13 26 37 14 7 34 13 21 51 -0.45 -128 0 0 13 54 53 3 10 57.1 28 94 -3 14 12 59 13 36 49 14 17 47 13 32 3 -0.45 -127 0 0 14 5 17 3 10 50.1 29 94 -4 14 23 24 13 47 13 14 28 12 13 42 26 -0.45 -126 0 0 14 15 54 3 10 42.9 30 94 -4 14 34 1 13 57 49 14 38 49 13 53 2 -0.45 -125 0 0 14 26 41 3 10 35.4 30 95 -5 14 44 50 14 8 36 14 49 38 14 3 49 -0.45 -124 0 0 14 37 41 3 10 27.8 31 95 -6 14 55 50 14 19 34 15 0 38 14 14 47 -0.45 -123 0 0 14 48 51 3 10 20.0 32 96 -7 15 7 1 14 30 44 15 11 49 14 25 57 -0.45 -122 0 0 15 0 12 3 10 12.0 33 96 -7 15 18 22 14 42 4 15 23 11 14 37 17 -0.45 -121 0 0 15 11 44 3 10 3.9 34 97 -8 15 29 55 14 53 35 15 34 44 14 48 48 -0.45 -120 0 0 15 23 26 3 9 55.5 35 97 -9 15 41 37 15 5 17 15 46 26 15 0 29 -0.45 -119 0 0 15 35 18 3 9 46.9 36 98 -10 15 53 30 15 17 8 15 58 19 15 12 21 -0.45 -118 0 0 15 47 20 3 9 38.2 37 98 -10 16 5 33 15 29 10 16 10 22 15 24 22 -0.45 -117 0 0 15 59 32 3 9 29.3 38 99 -11 16 17 45 15 41 21 16 22 35 15 36 33 -0.45 -116 0 0 16 11 53 3 9 20.3 39 99 -12 16 30 7 15 53 41 16 34 57 15 48 53 -0.45 -115 0 0 16 24 23 3 9 11.0 39 100 -12 16 42 38 16 6 11 16 47 28 16 1 22 -0.45 -114 0 0 16 37 2 3 9 1.6 40 100 -13 16 55 18 16 18 49 17 0 8 16 14 1 -0.45 -113 0 0 16 49 50 3 8 52.1 41 101 -14 17 8 6 16 31 37 17 12 56 16 26 48 -0.45 -112 0 0 17 2 46 3 8 42.4 42 101 -15 17 21 3 16 44 32 17 25 53 16 39 43 -0.45 -111 0 0 17 15 50 3 8 32.5 43 102 -15 17 34 8 16 57 36 17 38 59 16 52 47 -0.45 -110 0 0 17 29 3 3 8 22.5 44 103 -16 17 47 21 17 10 47 17 52 11 17 5 58 -0.45 -109 0 0 17 42 22 3 8 12.4 45 103 -17 18 0 41 17 24 6 18 5 32 17 19 17 -0.45 -108 0 0 17 55 49 3 8 2.1 45 104 -17 18 14 9 17 37 33 18 19 0 17 32 43 -0.45 -107 0 0 18 9 24 3 7 51.7 46 105 -18 18 27 43 17 51 6 18 32 35 17 46 17 -0.45 -106 0 0 18 23 5 3 7 41.1 47 106 -18 18 41 25 18 4 47 18 46 17 17 59 57 -0.45 -105 0 0 18 36 52 3 7 30.4 48 106 -19 18 55 13 18 18 34 19 0 5 18 13 44 -0.45 -104 0 0 18 50 46 3 7 19.6 49 107 -20 19 9 7 18 32 27 19 13 59 18 27 37 -0.45 -103 0 0 19 4 45 3 7 8.7 49 108 -20 19 23 8 18 46 26 19 28 0 18 41 36 -0.45 -102 0 0 19 18 51 3 6 57.7 50 109 -21 19 37 14 19 0 31 19 42 6 18 55 40 -0.45 -101 0 0 19 33 2 3 6 46.5 51 110 -21 19 51 25 19 14 41 19 56 17 19 9 51 -0.45 -100 0 0 19 47 18 3 6 35.3 52 111 -22 20 5 42 19 28 57 20 10 34 19 24 6 -0.45 - 99 0 0 20 1 39 3 6 23.9 52 112 -23 20 20 3 19 43 17 20 24 56 19 38 26 -0.45 - 98 0 0 20 16 4 3 6 12.5 53 113 -23 20 34 29 19 57 42 20 39 22 19 52 51 -0.45 - 97 0 0 20 30 34 3 6 1.0 54 114 -24 20 49 0 20 12 12 20 53 53 20 7 21 -0.45 - 96 0 0 20 45 9 3 5 49.3 55 115 -24 21 3 35 20 26 45 21 8 27 20 21 54 -0.45 - 95 0 0 20 59 46 3 5 37.6 55 117 -25 21 18 13 20 41 23 21 23 6 20 36 31 -0.46 - 94 0 0 21 14 28 3 5 25.8 56 118 -25 21 32 54 20 56 3 21 37 48 20 51 12 -0.46 - 93 0 0 21 29 12 3 5 14.0 57 119 -26 21 47 39 21 10 47 21 52 33 21 5 56 -0.46 - 92 0 0 21 43 59 3 5 2.1 57 121 -26 22 2 27 21 25 34 22 7 20 21 20 42 -0.46 - 91 0 0 21 58 49 3 4 50.1 58 122 -27 22 17 17 21 40 24 22 22 11 21 35 32 -0.46 - 90 0 0 22 13 42 3 4 38.0 59 123 -27 22 32 10 21 55 16 22 37 4 21 50 24 -0.46 - 89 0 0 22 28 36 3 4 25.9 59 125 -28 22 47 5 22 10 10 22 51 59 22 5 18 -0.46 - 88 0 0 22 43 32 3 4 13.7 60 127 -28 23 2 2 22 25 6 23 6 55 22 20 14 -0.46 - 87 0 0 22 58 30 3 4 1.5 60 128 -29 23 17 0 22 40 3 23 21 54 22 35 11 -0.46 - 86 0 0 23 13 29 3 3 49.3 61 130 -29 23 31 59 22 55 2 23 36 53 22 50 10 -0.46 - 85 0 0 23 28 29 3 3 37.0 61 132 -29 23 46 59 23 10 2 23 51 54 23 5 9 -0.46 - 84 0 0 23 43 30 3 3 24.7 62 133 -30 24 2 0 23 25 2 24 6 55 23 20 10 -0.46 - 83 0 0 23 58 31 3 3 12.3 62 135 -30 24 17 2 23 40 3 24 21 56 23 35 10 -0.46 - 82 0 0 24 13 32 3 2 59.9 63 137 -31 24 32 3 23 55 4 24 36 57 23 50 11 -0.46 - 81 0 0 24 28 33 3 2 47.5 63 139 -31 24 47 4 24 10 5 24 51 59 24 5 12 -0.46 - 80 0 0 24 43 34 3 2 35.1 63 141 -31 25 2 5 24 25 5 25 7 0 24 20 12 -0.46 - 79 0 0 24 58 34 3 2 22.6 64 143 -32 25 17 6 24 40 5 25 22 0 24 35 12 -0.46 - 78 0 0 25 13 33 3 2 10.2 64 145 -32 25 32 5 24 55 4 25 36 59 24 50 11 -0.46 - 77 0 0 25 28 31 3 1 57.7 64 147 -32 25 47 3 25 10 2 25 51 57 25 5 9 -0.46 - 76 0 0 25 43 27 3 1 45.3 64 150 -32 26 1 59 25 24 58 26 6 54 25 20 5 -0.46 - 75 0 0 25 58 22 3 1 32.8 65 152 -33 26 16 54 25 39 52 26 21 49 25 35 0 -0.46 - 74 0 0 26 13 14 3 1 20.4 65 154 -33 26 31 47 25 54 45 26 36 41 25 49 52 -0.46 - 73 0 0 26 28 5 3 1 8.0 65 156 -33 26 46 37 26 9 35 26 51 32 26 4 42 -0.46 - 72 0 0 26 42 52 3 0 55.6 65 159 -33 27 1 25 26 24 23 27 6 19 26 19 30 -0.46 - 71 0 0 26 57 37 3 0 43.2 65 161 -34 27 16 10 26 39 8 27 21 4 26 34 15 -0.46 - 70 0 0 27 12 19 3 0 30.8 65 163 -34 27 30 52 26 53 50 27 35 46 26 48 57 -0.46 - 69 0 0 27 26 58 3 0 18.5 65 166 -34 27 45 30 27 8 29 27 50 25 27 3 36 -0.46 - 68 0 0 27 41 33 3 0 6.1 65 168 -34 28 0 5 27 23 4 28 5 0 27 18 11 -0.46 - 67 0 0 27 56 4 2 59 53.9 65 170 -34 28 14 36 27 37 35 28 19 31 27 32 42 -0.46 - 66 0 0 28 10 31 2 59 41.6 65 173 -34 28 29 3 27 52 2 28 33 58 27 47 9 -0.47 - 65 0 0 28 24 54 2 59 29.4 65 175 -35 28 43 26 28 6 25 28 48 21 28 1 33 -0.47 - 64 0 0 28 39 13 2 59 17.2 65 177 -35 28 57 44 28 20 44 29 2 39 28 15 51 -0.47 - 63 0 0 28 53 26 2 59 5.1 64 179 -35 29 11 58 28 34 58 29 16 52 28 30 5 -0.47 - 62 0 0 29 7 35 2 58 53.1 64 182 -35 29 26 6 28 49 7 29 31 1 28 44 14 -0.47 - 61 0 0 29 21 39 2 58 41.1 64 184 -35 29 40 10 29 3 10 29 45 4 28 58 18 -0.47 - 60 0 0 29 35 37 2 58 29.1 63 186 -35 29 54 7 29 17 9 29 59 2 29 12 16 -0.47 - 59 0 0 29 49 29 2 58 17.2 63 188 -35 30 8 0 29 31 2 30 12 54 29 26 9 -0.47 - 58 0 0 30 3 16 2 58 5.4 63 190 -35 30 21 46 29 44 48 30 26 40 29 39 56 -0.47 - 57 0 0 30 16 56 2 57 53.7 62 192 -35 30 35 26 29 58 29 30 40 20 29 53 37 -0.47 - 56 0 0 30 30 30 2 57 42.0 62 194 -35 30 49 0 30 12 4 30 53 54 30 7 12 -0.47 - 55 0 0 30 43 58 2 57 30.4 62 196 -35 31 2 27 30 25 32 31 7 21 30 20 40 -0.47 - 54 0 0 30 57 19 2 57 18.8 61 198 -35 31 15 48 30 38 53 31 20 42 30 34 1 -0.47 - 53 0 0 31 10 33 2 57 7.4 61 199 -35 31 29 2 30 52 8 31 33 55 30 47 16 -0.47 - 52 0 0 31 23 40 2 56 56.0 60 201 -35 31 42 8 31 5 15 31 47 2 31 0 23 -0.47 - 51 0 0 31 36 40 2 56 44.7 60 203 -35 31 55 8 31 18 15 32 0 1 31 13 24 -0.47 - 50 0 0 31 49 32 2 56 33.5 59 204 -35 32 7 59 31 31 8 32 12 53 31 26 16 -0.47 - 49 0 0 32 2 17 2 56 22.4 59 206 -34 32 20 44 31 43 53 32 25 37 31 39 2 -0.47 - 48 0 0 32 14 54 2 56 11.3 58 207 -34 32 33 20 31 56 30 32 38 13 31 51 39 -0.47 - 47 0 0 32 27 22 2 56 0.4 58 209 -34 32 45 48 32 9 0 32 50 41 32 4 8 -0.47 - 46 0 0 32 39 43 2 55 49.6 57 210 -34 32 58 8 32 21 21 33 3 1 32 16 30 -0.47 - 45 0 0 32 51 55 2 55 38.8 56 212 -34 33 10 20 32 33 33 33 15 13 32 28 42 -0.47 - 44 0 0 33 3 59 2 55 28.2 56 213 -34 33 22 23 32 45 38 33 27 16 32 40 47 -0.47 - 43 0 0 33 15 54 2 55 17.6 55 214 -33 33 34 18 32 57 33 33 39 10 32 52 43 -0.47 - 42 0 0 33 27 40 2 55 7.2 55 216 -33 33 46 3 33 9 20 33 50 55 33 4 29 -0.47 - 41 0 0 33 39 17 2 54 56.8 54 217 -33 33 57 40 33 20 58 34 2 32 33 16 7 -0.47 - 40 0 0 33 50 45 2 54 46.6 53 218 -33 34 9 7 33 32 26 34 13 59 33 27 36 -0.47 - 39 0 0 34 2 4 2 54 36.5 53 219 -33 34 20 25 33 43 46 34 25 17 33 38 56 -0.47 - 38 0 0 34 13 14 2 54 26.5 52 221 -32 34 31 34 33 54 56 34 36 26 33 50 6 -0.47 - 37 0 0 34 24 13 2 54 16.6 51 222 -32 34 42 33 34 5 56 34 47 25 34 1 6 -0.47 - 36 0 0 34 35 3 2 54 6.8 51 223 -32 34 53 23 34 16 47 34 58 14 34 11 57 -0.47 - 35 0 0 34 45 44 2 53 57.1 50 224 -31 35 4 2 34 27 28 35 8 53 34 22 38 -0.47 - 34 0 0 34 56 14 2 53 47.6 49 225 -31 35 14 32 34 37 59 35 19 23 34 33 10 -0.47 - 33 0 0 35 6 34 2 53 38.2 49 226 -31 35 24 52 34 48 20 35 29 42 34 43 31 -0.47 - 32 0 0 35 16 44 2 53 28.9 48 227 -31 35 35 1 34 58 30 35 39 51 34 53 41 -0.47 - 31 0 0 35 26 44 2 53 19.7 47 228 -30 35 45 0 35 8 31 35 49 50 35 3 42 -0.47 - 30 0 0 35 36 33 2 53 10.6 47 229 -30 35 54 48 35 18 21 35 59 39 35 13 32 -0.47 - 29 0 0 35 46 12 2 53 1.7 46 230 -30 36 4 26 35 28 0 36 9 16 35 23 12 -0.47 - 28 0 0 35 55 40 2 52 52.8 45 231 -29 36 13 54 35 37 29 36 18 44 35 32 40 -0.47 - 27 0 0 36 4 57 2 52 44.1 44 232 -29 36 23 10 35 46 47 36 28 0 35 41 59 -0.47 - 26 0 0 36 14 4 2 52 35.6 44 233 -28 36 32 16 35 55 54 36 37 5 35 51 6 -0.47 - 25 0 0 36 22 59 2 52 27.1 43 234 -28 36 41 11 36 4 50 36 46 0 36 0 2 -0.47 - 24 0 0 36 31 43 2 52 18.8 42 235 -28 36 49 55 36 13 35 36 54 44 36 8 47 -0.47 - 23 0 0 36 40 17 2 52 10.6 42 235 -27 36 58 27 36 22 9 37 3 16 36 17 22 -0.47 - 22 0 0 36 48 39 2 52 2.6 41 236 -27 37 6 48 36 30 32 37 11 37 36 25 44 -0.47 - 21 0 0 36 56 49 2 51 54.7 40 237 -26 37 14 58 36 38 43 37 19 47 36 33 56 -0.47 - 20 0 0 37 4 49 2 51 46.9 39 238 -26 37 22 57 36 46 43 37 27 45 36 41 56 -0.47 - 19 0 0 37 12 36 2 51 39.2 39 239 -26 37 30 44 36 54 31 37 35 32 36 49 45 -0.47 - 18 0 0 37 20 12 2 51 31.7 38 240 -25 37 38 19 37 2 8 37 43 7 36 57 22 -0.47 - 17 0 0 37 27 37 2 51 24.3 37 240 -25 37 45 43 37 9 33 37 50 31 37 4 47 -0.47 - 16 0 0 37 34 50 2 51 17.0 37 241 -24 37 52 55 37 16 47 37 57 43 37 12 1 -0.47 - 15 0 0 37 41 51 2 51 9.9 36 242 -24 37 59 56 37 23 48 38 4 43 37 19 2 -0.47 - 14 0 0 37 48 40 2 51 2.9 35 243 -23 38 6 44 37 30 38 38 11 31 37 25 52 -0.47 - 13 0 0 37 55 17 2 50 56.1 34 244 -23 38 13 21 37 37 16 38 18 8 37 32 30 -0.47 - 12 0 0 38 1 42 2 50 49.4 34 244 -22 38 19 45 37 43 42 38 24 32 37 38 57 -0.47 - 11 0 0 38 7 56 2 50 42.8 33 245 -22 38 25 58 37 49 56 38 30 45 37 45 11 -0.47 - 10 0 0 38 13 57 2 50 36.4 32 246 -21 38 31 58 37 55 57 38 36 45 37 51 12 -0.47 - 9 0 0 38 19 45 2 50 30.1 31 247 -21 38 37 47 38 1 47 38 42 33 37 57 2 -0.47 - 8 0 0 38 25 22 2 50 23.9 31 247 -20 38 43 23 38 7 24 38 48 9 38 2 39 -0.47 - 7 0 0 38 30 46 2 50 17.9 30 248 -20 38 48 46 38 12 49 38 53 32 38 8 4 -0.47 - 6 0 0 38 35 58 2 50 12.0 29 249 -19 38 53 58 38 18 1 38 58 44 38 13 17 -0.47 - 5 0 0 38 40 58 2 50 6.3 28 249 -19 38 58 57 38 23 2 39 3 43 38 18 17 -0.47 - 4 0 0 38 45 45 2 50 0.7 28 250 -18 39 3 43 38 27 49 39 8 29 38 23 5 -0.47 - 3 0 0 38 50 20 2 49 55.3 27 251 -18 39 8 18 38 32 24 39 13 3 38 27 41 -0.47 - 2 0 0 38 54 42 2 49 49.9 26 252 -17 39 12 39 38 36 47 39 17 25 38 32 3 -0.47 - 1 0 0 38 58 51 2 49 44.8 25 252 -17 39 16 48 38 40 57 39 21 34 38 36 14 -0.47 0 0 0 39 2 48 2 49 39.8 25 253 -16 39 20 45 38 44 55 39 25 30 38 40 11 -0.47 1 0 0 39 6 33 2 49 34.9 24 254 -16 39 24 29 38 48 39 39 29 14 38 43 56 -0.47 2 0 0 39 10 4 2 49 30.1 23 254 -15 39 28 0 38 52 11 39 32 45 38 47 28 -0.47 3 0 0 39 13 23 2 49 25.6 22 255 -15 39 31 18 38 55 31 39 36 3 38 50 47 -0.47 4 0 0 39 16 29 2 49 21.1 22 256 -14 39 34 24 38 58 37 39 39 8 38 53 54 -0.47 5 0 0 39 19 22 2 49 16.8 21 256 -14 39 37 17 39 1 31 39 42 1 38 56 48 -0.47 6 0 0 39 22 3 2 49 12.7 20 257 -13 39 39 57 39 4 11 39 44 41 38 59 28 -0.47 7 0 0 39 24 30 2 49 8.7 19 258 -13 39 42 24 39 6 39 39 47 8 39 1 56 -0.47 8 0 0 39 26 45 2 49 4.8 19 258 -12 39 44 38 39 8 54 39 49 22 39 4 11 -0.47 9 0 0 39 28 46 2 49 1.1 18 259 -11 39 46 39 39 10 56 39 51 23 39 6 13 -0.47 10 0 0 39 30 35 2 48 57.5 17 260 -11 39 48 27 39 12 45 39 53 11 39 8 2 -0.47 11 0 0 39 32 10 2 48 54.1 16 260 -10 39 50 3 39 14 20 39 54 47 39 9 38 -0.47 12 0 0 39 33 33 2 48 50.8 16 261 -10 39 51 25 39 15 43 39 56 9 39 11 1 -0.47 13 0 0 39 34 42 2 48 47.7 15 262 -9 39 52 34 39 16 53 39 57 18 39 12 10 -0.48 14 0 0 39 35 38 2 48 44.7 14 262 -8 39 53 30 39 17 49 39 58 14 39 13 7 -0.48 15 0 0 39 36 21 2 48 41.9 13 263 -8 39 54 13 39 18 32 39 58 57 39 13 50 -0.48 16 0 0 39 36 51 2 48 39.3 13 264 -7 39 54 42 39 19 2 39 59 26 39 14 20 -0.48 17 0 0 39 37 8 2 48 36.7 12 264 -7 39 54 59 39 19 19 39 59 43 39 14 37 -0.48 18 0 0 39 37 11 2 48 34.4 11 265 -6 39 55 2 39 19 23 39 59 46 39 14 41 -0.48 19 0 0 39 37 2 2 48 32.2 10 265 -5 39 54 53 39 19 13 39 59 36 39 14 31 -0.48 20 0 0 39 36 38 2 48 30.1 10 266 -5 39 54 29 39 18 50 39 59 13 39 14 8 -0.48 21 0 0 39 36 2 2 48 28.2 9 267 -4 39 53 53 39 18 14 39 58 37 39 13 31 -0.48 22 0 0 39 35 12 2 48 26.5 8 267 -4 39 53 3 39 17 24 39 57 47 39 12 42 -0.49 23 0 0 39 34 9 2 48 24.9 7 268 -3 39 52 0 39 16 21 39 56 44 39 11 38 -0.49 24 0 0 39 32 53 2 48 23.4 7 269 -2 39 50 44 39 15 4 39 55 27 39 10 22 -0.49 25 0 0 39 31 23 2 48 22.2 6 269 -2 39 49 14 39 13 34 39 53 57 39 8 52 -0.49 26 0 0 39 29 39 2 48 21.0 5 270 -1 39 47 31 39 11 51 39 52 14 39 7 8 -0.50 27 0 0 39 27 43 2 48 20.1 4 271 0 39 45 34 39 9 54 39 50 18 39 5 12 -0.51 28 0 0 39 25 32 2 48 19.3 3 271 0 39 43 24 39 7 43 39 48 8 39 3 1 -0.52 29 0 0 39 23 9 2 48 18.6 3 272 1 39 41 0 39 5 20 39 45 44 39 0 37 -0.53 30 0 0 39 20 32 2 48 18.1 2 272 2 39 38 23 39 2 42 39 43 7 38 58 0 -0.57 31 0 0 39 17 41 2 48 17.8 1 273 2 39 35 33 38 59 51 39 40 17 38 55 9 -0.64 32 0 0 39 14 37 2 48 17.7 0 274 3 39 32 29 38 56 47 39 37 13 38 52 4 -1.03 Uncertainty in time = +/- 3 secs Prediction of 2023 Apr 29.2 Data for the target star ------------------------ * name: UCAC4 466-058011 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 16 46 57.5576 DE: +03 09 57.292 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 16 46 57.5575 DE: +03 09 57.294 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.3 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (218) Bianca asteroid class: approx. diameter [km]: 60 approx. diameter ["]: 0.057 distance from Earth [AU]: 1.45800 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#105 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): 0.022", 0.003", 93.344° remarks: * orbital elements for (218)Bianca : Mean anomaly = 20.3402880309 deg Arg. of pericenter = 62.4226185341 deg Long. of node = 170.5633363006 deg Inclination = 15.1982062346 deg Eccentricity = 0.1165871610 Semimajor axis = 2.6673724200 AU Perihelion dist = 2.3563910421 AU Mag: H = 8.58, G = 0.32 Epoch of elements : MJD 60117.12520833 TDT (2023 Jun 22.1252) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1052023Apr24,7.56,2023,6,22,3.007857,-0.103355,0.406378,-4.327527,-1.101453,0.001592,-0.002403,0.000001,0.000000 -63.1249,3.1238,135.37,23.44,False UCAC4 466-058011,16.78265489,3.1659144,0.00,12.29,0.00,0.0,0,,16.80246544,3.1237676,0.66,0.00,0,0,0 218,Bianca,12.09,59.8,1.4580,0,0,-1.742,-6.65,,2.8,0 0,20.3120,2023,6,22,62.4226,170.5633,15.1982,0.11659,2.66737,2.35639,8.62,5.0,0.15 1.132,0.0223,0.0033,93,0.0075,Known errors,-1.00,-1,-1,-1 20230622_058011,60063.20 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Apr 29, 04:42 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org