IOTA/IOTA-ES occultation update for (218) Bianca / TYC 0403-00979-1 event on 2023 May 24, 09:02 UT Visible from USA, Canada Summary ------- On 2023 May 24 UT, the 59.8 km diameter asteroid (218) Bianca will occult a 12.2 mag star in the constellation Ophiuchus for observers along a path across USA, Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.63 mag to 11.98 mag (the magnitude of the asteroid) for at most 6.770 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 May 24, 08:53 - 2023 May 24, 09:10 * geocentric midpoint of event [JD]: 2460088.87666000 * magnitude of target star: 12.23 * magnitude drop [mag]: 0.63 * estimated maximum duration [s]: 6.770 * Moon: 22 % sunlit, 129° distance * Sun: 152° distance * rough path description: USA, Canada The occultation path -------------------- * approximate projected width [km]: 88 * 1 sigma uncertainty interval [path widths]: +/- 0.15 * 1 sigma uncertainty interval [seconds]: +/- 2.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.023, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.023", 0.004", 95°) * approx speed of asteroid's shadow [km/s]: 8.8278 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0403-00979-1 by 218 Bianca on 2023 May 24 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 141 0 0 72 42 49 9 10 29.4 0 82 17 73 6 59 72 18 50 73 14 11 72 11 46 .... 142 0 0 72 45 13 9 10 29.4 0 83 17 73 9 21 72 21 16 73 16 32 72 14 13 -0.82 143 0 0 72 47 25 9 10 29.3 1 84 16 73 11 31 72 23 30 73 18 42 72 16 27 -0.93 144 0 0 72 49 25 9 10 29.2 1 85 16 73 13 29 72 25 31 73 20 39 72 18 28 -0.97 145 0 0 72 51 12 9 10 29.1 1 86 16 73 15 16 72 27 20 73 22 25 72 20 18 -0.99 146 0 0 72 52 48 9 10 29.0 2 87 16 73 16 50 72 28 57 73 23 59 72 21 55 -1.01 147 0 0 72 54 12 9 10 28.8 2 88 15 73 18 13 72 30 22 73 25 22 72 23 20 -1.02 148 0 0 72 55 24 9 10 28.6 2 89 15 73 19 24 72 31 35 73 26 33 72 24 34 -1.03 149 0 0 72 56 24 9 10 28.4 3 90 15 73 20 23 72 32 36 73 27 32 72 25 35 -1.04 150 0 0 72 57 13 9 10 28.1 3 91 15 73 21 11 72 33 25 73 28 20 72 26 24 -1.04 151 0 0 72 57 49 9 10 27.8 3 92 14 73 21 48 72 34 2 73 28 56 72 27 1 -1.04 152 0 0 72 58 15 9 10 27.5 3 93 14 73 22 13 72 34 27 73 29 21 72 27 27 -1.05 153 0 0 72 58 28 9 10 27.2 4 94 14 73 22 26 72 34 41 73 29 34 72 27 40 -1.05 154 0 0 72 58 30 9 10 26.8 4 95 13 73 22 28 72 34 42 73 29 36 72 27 42 -1.05 155 0 0 72 58 20 9 10 26.4 4 96 13 73 22 19 72 34 32 73 29 27 72 27 31 -1.06 156 0 0 72 57 59 9 10 26.0 5 97 13 73 21 58 72 34 10 73 29 6 72 27 9 -1.06 157 0 0 72 57 25 9 10 25.5 5 97 13 73 21 25 72 33 36 73 28 34 72 26 35 -1.06 158 0 0 72 56 41 9 10 25.0 5 98 12 73 20 41 72 32 51 73 27 50 72 25 49 -1.06 159 0 0 72 55 44 9 10 24.5 5 99 12 73 19 46 72 31 53 73 26 55 72 24 52 -1.06 160 0 0 72 54 36 9 10 24.0 6 100 12 73 18 39 72 30 44 73 25 48 72 23 42 -1.06 161 0 0 72 53 16 9 10 23.4 6 101 12 73 17 20 72 29 22 73 24 30 72 22 20 -1.07 162 0 0 72 51 44 9 10 22.8 6 102 11 73 15 50 72 27 49 73 23 0 72 20 46 -1.07 163 0 0 72 50 0 9 10 22.2 7 103 11 73 14 8 72 26 4 73 21 19 72 19 0 -1.07 164 0 0 72 48 5 9 10 21.5 7 104 11 73 12 14 72 24 6 73 19 26 72 17 2 -1.07 165 0 0 72 45 57 9 10 20.8 7 105 11 73 10 9 72 21 57 73 17 21 72 14 52 -1.07 166 0 0 72 43 38 9 10 20.1 8 106 10 73 7 51 72 19 35 73 15 4 72 12 30 -1.07 167 0 0 72 41 6 9 10 19.4 8 107 10 73 5 22 72 17 1 73 12 36 72 9 55 -1.07 168 0 0 72 38 22 9 10 18.6 8 108 10 73 2 41 72 14 14 73 9 55 72 7 7 -1.07 169 0 0 72 35 25 9 10 17.8 8 109 10 72 59 47 72 11 15 73 7 2 72 4 8 -1.07 170 0 0 72 32 17 9 10 16.9 9 110 9 72 56 41 72 8 3 73 3 57 72 0 55 -1.07 171 0 0 72 28 55 9 10 16.1 9 111 9 72 53 23 72 4 39 73 0 40 71 57 30 -1.07 172 0 0 72 25 22 9 10 15.1 9 112 9 72 49 53 72 1 2 72 57 10 71 53 52 -1.07 173 0 0 72 21 35 9 10 14.2 10 113 9 72 46 9 71 57 12 72 53 28 71 50 1 -1.08 174 0 0 72 17 35 9 10 13.2 10 114 8 72 42 13 71 53 9 72 49 33 71 45 57 -1.08 175 0 0 72 13 23 9 10 12.2 10 115 8 72 38 4 71 48 52 72 45 26 71 41 39 -1.08 176 0 0 72 8 57 9 10 11.1 11 116 8 72 33 43 71 44 23 72 41 5 71 37 8 -1.08 177 0 0 72 4 18 9 10 10.0 11 117 7 72 29 8 71 39 40 72 36 31 71 32 24 -1.08 178 0 0 71 59 25 9 10 8.9 11 118 7 72 24 19 71 34 43 72 31 44 71 27 26 -1.08 179 0 0 71 54 19 9 10 7.7 11 118 7 72 19 17 71 29 32 72 26 44 71 22 14 -1.08 -180 0 0 71 48 58 9 10 6.5 12 119 7 72 14 2 71 24 7 72 21 29 71 16 48 -1.08 -179 0 0 71 43 24 9 10 5.2 12 120 6 72 8 32 71 18 28 72 16 1 71 11 8 -1.08 -178 0 0 71 37 36 9 10 3.9 12 121 6 72 2 49 71 12 35 72 10 19 71 5 13 -1.08 -177 0 0 71 31 33 9 10 2.6 13 122 6 71 56 51 71 6 27 72 4 23 70 59 4 -1.08 -176 0 0 71 25 16 9 10 1.2 13 123 6 71 50 39 71 0 5 71 58 13 70 52 40 -1.08 -175 0 0 71 18 43 9 9 59.7 13 124 5 71 44 12 70 53 27 71 51 47 70 46 1 -1.08 -174 0 0 71 11 56 9 9 58.2 14 125 5 71 37 30 70 46 35 71 45 7 70 39 7 -1.08 -173 0 0 71 4 53 9 9 56.7 14 126 5 71 30 33 70 39 27 71 38 12 70 31 57 -1.08 -172 0 0 70 57 35 9 9 55.1 14 127 5 71 23 21 70 32 3 71 31 2 70 24 32 -1.08 -171 0 0 70 50 2 9 9 53.5 15 128 4 71 15 53 70 24 23 71 23 36 70 16 50 -1.08 -170 0 0 70 42 12 9 9 51.8 15 129 4 71 8 10 70 16 28 71 15 54 70 8 53 -1.08 -169 0 0 70 34 6 9 9 50.0 15 130 4 71 0 10 70 8 16 71 7 56 70 0 39 -1.09 -168 0 0 70 25 44 9 9 48.2 16 131 3 70 51 54 69 59 47 70 59 42 69 52 9 -1.09 -167 0 0 70 17 4 9 9 46.4 16 132 3 70 43 21 69 51 2 70 51 11 69 43 21 -1.09 -166 0 0 70 8 8 9 9 44.4 16 133 3 70 34 32 69 41 59 70 42 24 69 34 17 -1.09 -165 0 0 69 58 55 9 9 42.4 17 134 3 70 25 25 69 32 39 70 33 19 69 24 55 -1.09 -164 0 0 69 49 24 9 9 40.4 17 135 2 70 16 1 69 23 2 70 23 57 69 15 16 -1.09 -163 0 0 69 39 35 9 9 38.3 18 136 2 70 6 19 69 13 6 70 14 17 69 5 18 -1.09 -162 0 0 69 29 28 9 9 36.1 18 137 2 69 56 19 69 2 53 70 4 19 68 55 3 -1.09 -161 0 0 69 19 3 9 9 33.8 18 138 1 69 46 1 68 52 20 69 54 3 68 44 29 -1.09 -160 0 0 69 8 19 9 9 31.5 19 139 1 69 35 24 68 41 30 69 43 29 68 33 36 -1.09 -159 0 0 68 57 16 9 9 29.1 19 140 1 69 24 29 68 30 20 69 32 35 68 22 24 -1.09 -158 0 0 68 45 54 9 9 26.6 19 141 1 69 13 14 68 18 50 69 21 23 68 10 52 -1.09 -157 0 0 68 34 12 9 9 24.0 20 142 0 69 1 39 68 7 2 69 9 50 67 59 1 -1.09 -156 0 0 68 22 11 9 9 21.4 20 143 0 68 49 45 67 54 53 68 57 59 67 46 51 -1.09 -155 0 0 68 9 49 9 9 18.6 20 144 0 68 37 31 67 42 24 68 45 47 67 34 20 -1.09 -154 0 0 67 57 7 9 9 15.8 21 145 -1 68 24 56 67 29 34 68 33 14 67 21 28 -1.09 -153 0 0 67 44 4 9 9 12.9 21 146 -1 68 12 1 67 16 24 68 20 21 67 8 16 -1.09 -152 0 0 67 30 40 9 9 9.9 22 147 -1 67 58 45 67 2 53 68 7 7 66 54 43 -1.09 -151 0 0 67 16 55 9 9 6.8 22 148 -2 67 45 7 66 49 1 67 53 32 66 40 48 -1.09 -150 0 0 67 2 49 9 9 3.6 22 149 -2 67 31 8 66 34 47 67 39 35 66 26 32 -1.09 -149 0 0 66 48 20 9 9 0.3 23 150 -2 67 16 47 66 20 11 67 25 16 66 11 54 -1.09 -148 0 0 66 33 29 9 8 56.9 23 151 -3 67 2 4 66 5 13 67 10 35 65 56 55 -1.09 -147 0 0 66 18 16 9 8 53.4 24 152 -3 66 46 58 65 49 53 66 55 32 65 41 32 -1.10 -146 0 0 66 2 41 9 8 49.8 24 153 -3 66 31 30 65 34 11 66 40 6 65 25 48 -1.10 -145 0 0 65 46 42 9 8 46.1 25 154 -3 66 15 39 65 18 5 66 24 17 65 9 40 -1.10 -144 0 0 65 30 21 9 8 42.3 25 155 -4 65 59 24 65 1 37 66 8 4 64 53 10 -1.10 -143 0 0 65 13 36 9 8 38.3 25 156 -4 65 42 47 64 44 45 65 51 29 64 36 16 -1.10 -142 0 0 64 56 28 9 8 34.3 26 157 -4 65 25 45 64 27 30 65 34 30 64 18 59 -1.10 -141 0 0 64 38 56 9 8 30.1 26 158 -5 65 8 20 64 9 52 65 17 7 64 1 19 -1.10 -140 0 0 64 21 0 9 8 25.8 27 159 -5 64 50 31 63 51 50 64 59 20 63 43 15 -1.10 -139 0 0 64 2 41 9 8 21.3 27 160 -5 64 32 18 63 33 24 64 41 9 63 24 47 -1.10 -138 0 0 63 43 57 9 8 16.7 28 161 -6 64 13 41 63 14 34 64 22 33 63 5 56 -1.10 -137 0 0 63 24 49 9 8 12.0 28 162 -6 63 54 39 62 55 20 64 3 33 62 46 40 -1.10 -136 0 0 63 5 17 9 8 7.1 28 163 -6 63 35 13 62 35 43 63 44 9 62 27 1 -1.10 -135 0 0 62 45 21 9 8 2.2 29 164 -7 63 15 23 62 15 41 63 24 20 62 6 58 -1.10 -134 0 0 62 25 1 9 7 57.0 29 165 -7 62 55 8 61 55 15 63 4 7 61 46 30 -1.10 -133 0 0 62 4 16 9 7 51.7 30 166 -7 62 34 28 61 34 25 62 43 29 61 25 39 -1.10 -132 0 0 61 43 7 9 7 46.3 30 167 -8 62 13 24 61 13 11 62 22 27 61 4 24 -1.10 -131 0 0 61 21 33 9 7 40.7 31 168 -8 61 51 56 60 51 33 62 1 0 60 42 44 -1.10 -130 0 0 60 59 36 9 7 35.0 31 169 -8 61 30 3 60 29 32 61 39 8 60 20 42 -1.10 -129 0 0 60 37 15 9 7 29.1 32 170 -8 61 7 46 60 7 7 61 16 52 59 58 15 -1.10 -128 0 0 60 14 30 9 7 23.0 32 172 -9 60 45 5 59 44 18 60 54 12 59 35 25 -1.10 -127 0 0 59 51 21 9 7 16.8 32 173 -9 60 22 0 59 21 6 60 31 9 59 12 12 -1.10 -126 0 0 59 27 50 9 7 10.5 33 174 -9 59 58 31 58 57 31 60 7 41 58 48 37 -1.10 -125 0 0 59 3 55 9 7 4.0 33 175 -10 59 34 39 58 33 33 59 43 50 58 24 38 -1.10 -124 0 0 58 39 37 9 6 57.3 34 176 -10 59 10 24 58 9 13 59 19 36 58 0 17 -1.10 -123 0 0 58 14 57 9 6 50.4 34 177 -10 58 45 47 57 44 31 58 54 59 57 35 35 -1.10 -122 0 0 57 49 56 9 6 43.4 35 178 -11 58 20 47 57 19 28 58 30 0 57 10 31 -1.10 -121 0 0 57 24 32 9 6 36.2 35 180 -11 57 55 25 56 54 3 58 4 39 56 45 5 -1.10 -120 0 0 56 58 48 9 6 28.9 36 181 -11 57 29 42 56 28 17 57 38 56 56 19 19 -1.10 -119 0 0 56 32 43 9 6 21.4 36 182 -11 57 3 38 56 2 12 57 12 52 55 53 13 -1.10 -118 0 0 56 6 18 9 6 13.7 36 183 -12 56 37 13 55 35 46 56 46 27 55 26 48 -1.10 -117 0 0 55 39 34 9 6 5.8 37 184 -12 56 10 29 55 9 2 56 19 43 55 0 3 -1.10 -116 0 0 55 12 30 9 5 57.8 37 186 -12 55 43 26 54 41 59 55 52 40 54 33 1 -1.10 -115 0 0 54 45 9 9 5 49.7 38 187 -12 55 16 4 54 14 38 55 25 18 54 5 40 -1.10 -114 0 0 54 17 30 9 5 41.4 38 188 -12 54 48 24 53 47 0 54 57 38 53 38 3 -1.10 -113 0 0 53 49 35 9 5 32.9 38 189 -13 54 20 27 53 19 6 54 29 41 53 10 9 -1.10 -112 0 0 53 21 24 9 5 24.3 39 191 -13 53 52 14 52 50 56 54 1 27 52 42 0 -1.10 -111 0 0 52 52 57 9 5 15.5 39 192 -13 53 23 46 52 22 32 53 32 58 52 13 35 -1.10 -110 0 0 52 24 16 9 5 6.5 39 193 -13 52 55 2 51 53 53 53 4 14 51 44 57 -1.10 -109 0 0 51 55 21 9 4 57.4 40 195 -13 52 26 5 51 25 1 52 35 16 51 16 6 -1.10 -108 0 0 51 26 14 9 4 48.2 40 196 -14 51 56 55 50 55 57 52 6 5 50 47 3 -1.10 -107 0 0 50 56 55 9 4 38.9 40 197 -14 51 27 33 50 26 41 51 36 41 50 17 48 -1.10 -106 0 0 50 27 26 9 4 29.4 41 199 -14 50 57 59 49 57 15 51 7 7 49 48 23 -1.10 -105 0 0 49 57 46 9 4 19.7 41 200 -14 50 28 16 49 27 39 50 37 22 49 18 48 -1.10 -104 0 0 49 27 57 9 4 10.0 41 202 -14 49 58 23 48 57 54 50 7 28 48 49 5 -1.10 -103 0 0 48 58 1 9 4 0.1 41 203 -14 49 28 22 48 28 2 49 37 25 48 19 14 -1.10 -102 0 0 48 27 57 9 3 50.1 42 204 -14 48 58 13 47 58 3 49 7 16 47 49 16 -1.10 -101 0 0 47 57 48 9 3 40.0 42 206 -14 48 27 59 47 27 58 48 37 0 47 19 12 -1.10 -100 0 0 47 27 33 9 3 29.8 42 207 -14 47 57 39 46 57 49 48 6 38 46 49 4 -1.10 - 99 0 0 46 57 14 9 3 19.5 42 209 -14 47 27 15 46 27 35 47 36 12 46 18 52 -1.10 - 98 0 0 46 26 52 9 3 9.1 42 210 -14 46 56 47 45 57 19 47 5 43 45 48 37 -1.10 - 97 0 0 45 56 29 9 2 58.6 42 212 -14 46 26 18 45 27 1 46 35 12 45 18 21 -1.10 - 96 0 0 45 26 4 9 2 48.1 42 213 -14 45 55 47 44 56 42 46 4 39 44 48 4 -1.09 - 95 0 0 44 55 39 9 2 37.4 42 214 -14 45 25 16 44 26 23 45 34 6 44 17 47 -1.09 - 94 0 0 44 25 15 9 2 26.7 42 216 -14 44 54 46 43 56 5 45 3 35 43 47 31 -1.09 - 93 0 0 43 54 54 9 2 16.0 42 217 -14 44 24 18 43 25 50 44 33 4 43 17 17 -1.09 - 92 0 0 43 24 35 9 2 5.2 42 219 -14 43 53 53 42 55 38 44 2 37 42 47 7 -1.09 - 91 0 0 42 54 21 9 1 54.4 42 220 -14 43 23 31 42 25 30 43 32 14 42 17 0 -1.09 - 90 0 0 42 24 11 9 1 43.5 42 222 -14 42 53 15 41 55 27 43 1 56 41 46 59 -1.09 - 89 0 0 41 54 7 9 1 32.6 42 223 -14 42 23 5 41 25 30 42 31 43 41 17 4 -1.09 - 88 0 0 41 24 11 9 1 21.7 42 224 -14 41 53 1 40 55 40 42 1 37 40 47 16 -1.09 - 87 0 0 40 54 22 9 1 10.8 42 226 -13 41 23 5 40 25 58 41 31 39 40 17 36 -1.09 - 86 0 0 40 24 42 9 0 59.9 42 227 -13 40 53 18 39 56 25 41 1 50 39 48 5 -1.09 - 85 0 0 39 55 12 9 0 49.0 41 229 -13 40 23 41 39 27 1 40 32 11 39 18 44 -1.09 - 84 0 0 39 25 53 9 0 38.1 41 230 -13 39 54 15 38 57 49 40 2 42 38 49 34 -1.09 - 83 0 0 38 56 45 9 0 27.2 41 231 -13 39 25 0 38 28 48 39 33 25 38 20 35 -1.09 - 82 0 0 38 27 50 9 0 16.3 41 233 -12 38 55 57 38 0 0 39 4 20 37 51 48 -1.09 - 81 0 0 37 59 7 9 0 5.5 40 234 -12 38 27 8 37 31 24 38 35 29 37 23 15 -1.09 - 80 0 0 37 30 40 8 59 54.8 40 235 -12 37 58 33 37 3 4 38 6 52 36 54 56 -1.09 - 79 0 0 37 2 27 8 59 44.1 40 236 -11 37 30 13 36 34 58 37 38 30 36 26 52 -1.09 - 78 0 0 36 34 30 8 59 33.4 39 238 -11 37 2 9 36 7 8 37 10 23 35 59 4 -1.09 - 77 0 0 36 6 49 8 59 22.9 39 239 -11 36 34 21 35 39 34 36 42 34 35 31 33 -1.09 - 76 0 0 35 39 26 8 59 12.4 38 240 -10 36 6 51 35 12 18 36 15 2 35 4 19 -1.09 - 75 0 0 35 12 22 8 59 2.0 38 241 -10 35 39 39 34 45 20 35 47 48 34 37 23 -1.09 - 74 0 0 34 45 36 8 58 51.6 37 242 -10 35 12 47 34 18 41 35 20 53 34 10 45 -1.09 - 73 0 0 34 19 9 8 58 41.4 37 244 -9 34 46 13 33 52 21 34 54 17 33 44 27 -1.09 - 72 0 0 33 53 3 8 58 31.3 36 245 -9 34 20 0 33 26 21 34 28 2 33 18 30 -1.09 - 71 0 0 33 27 18 8 58 21.3 36 246 -8 33 54 8 33 0 42 34 2 8 32 52 53 -1.09 - 70 0 0 33 1 54 8 58 11.4 35 247 -8 33 28 38 32 35 25 33 36 36 32 27 37 -1.09 - 69 0 0 32 36 52 8 58 1.7 35 248 -7 33 3 29 32 10 30 33 11 26 32 2 44 -1.09 - 68 0 0 32 12 13 8 57 52.1 34 249 -7 32 38 44 31 45 57 32 46 38 31 38 13 -1.09 - 67 0 0 31 47 58 8 57 42.6 34 250 -6 32 14 23 31 21 48 32 22 15 31 14 5 -1.09 - 66 0 0 31 24 7 8 57 33.3 33 251 -6 31 50 25 30 58 2 31 58 15 30 50 22 -1.09 - 65 0 0 31 0 40 8 57 24.1 32 251 -5 31 26 52 30 34 42 31 34 40 30 27 3 -1.09 - 64 0 0 30 37 38 8 57 15.1 32 252 -5 31 3 44 30 11 46 31 11 31 30 4 9 -1.09 - 63 0 0 30 15 2 8 57 6.3 31 253 -4 30 41 2 29 49 16 30 48 47 29 41 40 -1.09 - 62 0 0 29 52 52 8 56 57.6 30 254 -4 30 18 47 29 27 11 30 26 30 29 19 38 -1.09 - 61 0 0 29 31 9 8 56 49.1 30 255 -3 29 56 58 29 5 34 30 4 40 28 58 2 -1.09 - 60 0 0 29 9 53 8 56 40.8 29 256 -2 29 35 37 28 44 23 29 43 16 28 36 53 -1.09 - 59 0 0 28 49 5 8 56 32.7 28 256 -2 29 14 43 28 23 40 29 22 21 28 16 11 -1.09 - 58 0 0 28 28 44 8 56 24.7 27 257 -1 28 54 17 28 3 25 29 1 54 27 55 57 -1.09 - 57 0 0 28 8 52 8 56 17.0 27 258 0 28 34 20 27 43 38 28 41 55 27 36 12 -1.09 - 56 0 0 27 49 29 8 56 9.5 26 259 0 28 14 52 27 24 20 28 22 26 27 16 55 -1.09 - 55 0 0 27 30 36 8 56 2.1 25 259 1 27 55 53 27 5 31 28 3 25 26 58 7 -1.09 - 54 0 0 27 12 12 8 55 55.0 24 260 2 27 37 25 26 47 11 27 44 55 26 39 49 -1.09 - 53 0 0 26 54 18 8 55 48.1 23 260 2 27 19 26 26 29 22 27 26 55 26 22 1 -1.09 - 52 0 0 26 36 54 8 55 41.4 23 261 3 27 1 58 26 12 2 27 9 26 26 4 43 -1.10 - 51 0 0 26 20 1 8 55 35.0 22 262 4 26 45 1 25 55 14 26 52 28 25 47 55 -1.10 - 50 0 0 26 3 40 8 55 28.7 21 262 4 26 28 35 25 38 56 26 36 1 25 31 39 -1.10 - 49 0 0 25 47 49 8 55 22.7 20 263 5 26 12 41 25 23 10 26 20 5 25 15 54 -1.10 - 48 0 0 25 32 31 8 55 17.0 19 263 6 25 57 19 25 7 55 26 4 42 25 0 40 -1.10 - 47 0 0 25 17 45 8 55 11.4 18 264 7 25 42 29 24 53 12 25 49 51 24 45 58 -1.10 - 46 0 0 25 3 31 8 55 6.1 18 264 7 25 28 11 24 39 2 25 35 32 24 31 49 -1.10 - 45 0 0 24 49 49 8 55 1.1 17 265 8 25 14 27 24 25 24 25 21 46 24 18 12 -1.11 - 44 0 0 24 36 41 8 54 56.3 16 265 9 25 1 15 24 12 19 25 8 34 24 5 8 -1.11 - 43 0 0 24 24 6 8 54 51.7 15 266 10 24 48 37 23 59 47 24 55 55 23 52 36 -1.11 - 42 0 0 24 12 4 8 54 47.4 14 266 10 24 36 33 23 47 48 24 43 50 23 40 39 -1.11 - 41 0 0 24 0 37 8 54 43.4 13 267 11 24 25 2 23 36 23 24 32 18 23 29 14 -1.12 - 40 0 0 23 49 43 8 54 39.6 12 267 12 24 14 6 23 25 31 24 21 21 23 18 24 -1.12 - 39 0 0 23 39 23 8 54 36.1 11 268 13 24 3 44 23 15 14 24 10 58 23 8 7 -1.13 - 38 0 0 23 29 38 8 54 32.8 11 268 14 23 53 56 23 5 31 24 1 10 22 58 25 -1.13 - 37 0 0 23 20 28 8 54 29.8 10 269 14 23 44 44 22 56 23 23 51 57 22 49 17 -1.14 - 36 0 0 23 11 52 8 54 27.1 9 269 15 23 36 6 22 47 49 23 43 19 22 40 44 -1.14 - 35 0 0 23 3 52 8 54 24.6 8 269 16 23 28 4 22 39 50 23 35 16 22 32 45 -1.15 - 34 0 0 22 56 26 8 54 22.4 7 270 17 23 20 37 22 32 26 23 27 49 22 25 22 -1.16 - 33 0 0 22 49 37 8 54 20.5 6 270 18 23 13 46 22 25 38 23 20 58 22 18 34 -1.17 - 32 0 0 22 43 23 8 54 18.8 5 271 19 23 7 31 22 19 25 23 14 42 22 12 22 -1.19 - 31 0 0 22 37 45 8 54 17.4 4 271 20 23 1 52 22 13 48 23 9 3 22 6 45 -1.21 - 30 0 0 22 32 43 8 54 16.3 3 271 20 22 56 49 22 8 47 23 4 0 22 1 44 -1.25 - 29 0 0 22 28 17 8 54 15.5 2 272 21 22 52 23 22 4 22 22 59 33 21 57 19 -1.32 - 28 0 0 22 24 27 8 54 15.0 1 272 22 22 48 33 22 0 33 22 55 43 21 53 30 -1.48 - 27 0 0 22 21 15 8 54 14.7 0 272 23 22 45 20 21 57 21 22 52 30 21 50 18 -2.29 Uncertainty in time = +/- 3 secs Prediction of 2023 Apr 29.2 Data for the target star ------------------------ * name: TYC 0403-00979-1 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 09 44.1201 DE: +02 30 22.697 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 09 44.1202 DE: +02 30 22.698 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (218) Bianca asteroid class: approx. diameter [km]: 60 approx. diameter ["]: 0.058 distance from Earth [AU]: 1.42810 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): 0.023", 0.004", 94.972° remarks: * orbital elements for (218)Bianca : Mean anomaly = 13.8322739419 deg Arg. of pericenter = 62.4261889288 deg Long. of node = 170.5636411125 deg Inclination = 15.1982146123 deg Eccentricity = 0.1166105552 Semimajor axis = 2.6674464749 AU Perihelion dist = 2.3563940606 AU Mag: H = 8.58, G = 0.32 Epoch of elements : MJD 60088.37659722 TDT (2023 May 24.3766) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1052023Apr24,6.77,2023,5,24,9.039840,0.313138,0.665904,-4.508934,2.120434,-0.001446,-0.002141,0.000001,0.000000 -119.5743,2.4755,43.61,20.75,False TYC 0403-00979-1,17.16225558,2.5063046,0.00,12.23,0.00,0.0,0,,17.18206298,2.4754545,0.64,0.00,0,0,0 218,Bianca,11.98,59.8,1.4281,0,0,-1.853,13.05,,2.8,0 0,13.7471,2023,5,24,62.4262,170.5636,15.1982,0.11661,2.66745,2.35639,8.62,5.0,0.15 1.148,0.0227,0.0037,95,0.0086,Known errors,-1.00,-1,-1,-1 20230524_0979-1,60063.19 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Apr 29, 04:29 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org