IOTA/IOTA-ES occultation update for (168) Sibylla / UCAC4 350-128191 event on 2024 Feb 09, 02:54 UT Visible from Summary ------- On 2024 Feb 09 UT, the 145.598393194823 km diameter asteroid (168) Sibylla will occult a 10.8 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 3.78 mag to 14.58 mag (the magnitude of the asteroid) for at most 4.010 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 Feb 09, 02:52 - 2024 Feb 09, 02:57 * geocentric midpoint of event [JD]: 2460349.62151525 * magnitude of target star: 10.83 * magnitude drop [mag]: 3.78 * estimated maximum duration [s]: 4.010 * Moon: 1 % sunlit, 37° distance * Sun: 47° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 155 * 1 sigma uncertainty interval [path widths]: +/- 0.09 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.004", 88°) * approx speed of asteroid's shadow [km/s]: 36.4087 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 350-128191 by 168 Sibylla on 2024 Feb 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 7 0 0 14 42 26 2 52 13.9 0 111 -45 13 57 38 .. .. .. 13 49 40 .. .. .. .... 8 0 0 14 20 14 2 52 13.9 1 111 -44 13 35 28 15 5 14 13 27 30 15 13 16 -0.07 9 0 0 13 58 8 2 52 14.0 2 111 -43 13 13 24 14 43 6 13 5 27 14 51 8 -0.21 10 0 0 13 36 9 2 52 14.2 3 112 -42 12 51 27 14 21 4 12 43 30 14 29 6 -0.25 11 0 0 13 14 17 2 52 14.4 4 112 -41 12 29 37 13 59 10 12 21 41 14 7 11 -0.28 12 0 0 12 52 33 2 52 14.7 5 112 -40 12 7 55 13 37 24 12 0 0 13 45 24 -0.29 13 0 0 12 30 57 2 52 15.0 6 112 -39 11 46 22 13 15 45 11 38 27 13 23 46 -0.30 14 0 0 12 9 30 2 52 15.4 7 113 -38 11 24 58 12 54 16 11 17 3 13 2 16 -0.31 15 0 0 11 48 13 2 52 15.9 8 113 -37 11 3 43 12 32 56 10 55 49 12 40 55 -0.32 16 0 0 11 27 5 2 52 16.4 9 113 -36 10 42 38 12 11 45 10 34 44 12 19 44 -0.32 17 0 0 11 6 8 2 52 17.0 10 113 -35 10 21 44 11 50 45 10 13 50 11 58 44 -0.32 18 0 0 10 45 22 2 52 17.6 12 113 -34 10 1 0 11 29 56 9 53 7 11 37 54 -0.33 19 0 0 10 24 47 2 52 18.4 13 114 -33 9 40 28 11 9 18 9 32 36 11 17 16 -0.33 20 0 0 10 4 24 2 52 19.1 14 114 -32 9 20 8 10 48 52 9 12 16 10 56 49 -0.33 21 0 0 9 44 13 2 52 19.9 15 114 -31 9 0 0 10 28 38 8 52 9 10 36 34 -0.33 22 0 0 9 24 15 2 52 20.8 16 114 -30 8 40 5 10 8 37 8 32 14 10 16 32 -0.33 23 0 0 9 4 30 2 52 21.8 17 114 -29 8 20 23 9 48 49 8 12 33 9 56 44 -0.34 24 0 0 8 44 58 2 52 22.8 18 115 -28 8 0 55 9 29 14 7 53 6 9 37 9 -0.34 25 0 0 8 25 41 2 52 23.8 19 115 -27 7 41 41 9 9 54 7 33 52 9 17 48 -0.34 26 0 0 8 6 39 2 52 25.0 20 115 -26 7 22 42 8 50 48 7 14 53 8 58 41 -0.34 27 0 0 7 47 51 2 52 26.1 21 115 -25 7 3 57 8 31 57 6 56 10 8 39 50 -0.34 28 0 0 7 29 18 2 52 27.4 22 115 -24 6 45 28 8 13 21 6 37 41 8 21 13 -0.34 29 0 0 7 11 2 2 52 28.7 23 115 -22 6 27 15 7 55 1 6 19 28 8 2 53 -0.34 30 0 0 6 53 1 2 52 30.0 24 116 -21 6 9 18 7 36 57 6 1 32 7 44 48 -0.34 31 0 0 6 35 17 2 52 31.4 25 116 -20 5 51 37 7 19 9 5 43 51 7 27 0 -0.34 32 0 0 6 17 50 2 52 32.9 26 116 -19 5 34 13 7 1 39 5 26 28 7 9 28 -0.34 33 0 0 6 0 40 2 52 34.4 27 116 -18 5 17 6 6 44 25 5 9 22 6 52 14 -0.34 34 0 0 5 43 47 2 52 35.9 28 116 -17 5 0 17 6 27 29 4 52 33 6 35 18 -0.35 35 0 0 5 27 12 2 52 37.5 29 117 -16 4 43 45 6 10 51 4 36 2 6 18 39 -0.35 36 0 0 5 10 55 2 52 39.2 30 117 -15 4 27 32 5 54 31 4 19 49 6 2 18 -0.35 37 0 0 4 54 57 2 52 40.9 31 117 -14 4 11 37 5 38 29 4 3 55 5 46 16 -0.35 38 0 0 4 39 18 2 52 42.7 32 117 -13 3 56 1 5 22 47 3 48 20 5 30 33 -0.35 39 0 0 4 23 58 2 52 44.5 33 118 -12 3 40 44 5 7 23 3 33 3 5 15 9 -0.35 40 0 0 4 8 57 2 52 46.4 34 118 -11 3 25 47 4 52 19 3 18 6 5 0 4 -0.35 41 0 0 3 54 16 2 52 48.3 35 118 -10 3 11 9 4 37 35 3 3 29 4 45 19 -0.35 42 0 0 3 39 54 2 52 50.2 36 118 -9 2 56 50 4 23 10 2 49 11 4 30 54 -0.35 43 0 0 3 25 53 2 52 52.2 37 119 -8 2 42 52 4 9 6 2 35 14 4 16 49 -0.35 44 0 0 3 12 12 2 52 54.3 38 119 -7 2 29 15 3 55 21 2 21 37 4 3 4 -0.35 45 0 0 2 58 52 2 52 56.4 39 119 -6 2 15 57 3 41 58 2 8 20 3 49 40 -0.35 46 0 0 2 45 52 2 52 58.5 40 119 -5 2 3 1 3 28 56 1 55 24 3 36 37 -0.35 47 0 0 2 33 14 2 53 0.7 41 120 -4 1 50 26 3 16 14 1 42 49 3 23 55 -0.35 48 0 0 2 20 57 2 53 2.9 42 120 -3 1 38 11 3 3 54 1 30 35 3 11 35 -0.35 49 0 0 2 9 1 2 53 5.2 43 120 -2 1 26 19 2 51 56 1 18 43 2 59 36 -0.35 50 0 0 1 57 27 2 53 7.4 44 121 -1 1 14 47 2 40 19 1 7 12 2 47 58 -0.35 51 0 0 1 46 15 2 53 9.8 45 121 0 1 3 38 2 29 4 0 56 3 2 36 43 -0.35 52 0 0 1 35 25 2 53 12.2 46 122 1 0 52 50 2 18 11 0 45 16 2 25 49 -0.35 53 0 0 1 24 57 2 53 14.6 47 122 2 0 42 25 2 7 40 0 34 51 2 15 18 -0.35 54 0 0 1 14 51 2 53 17.0 48 122 3 0 32 21 1 57 32 0 24 48 2 5 9 -0.35 55 0 0 1 5 8 2 53 19.5 49 123 4 0 22 41 1 47 46 0 15 8 1 55 23 -0.35 56 0 0 0 55 47 2 53 22.0 50 123 5 0 13 22 1 38 23 0 5 50 1 46 0 -0.35 57 0 0 0 46 49 2 53 24.5 51 124 6 0 4 26 1 29 23 - 0 3 5 1 36 59 -0.35 58 0 0 0 38 14 2 53 27.1 52 125 7 - 0 4 7 1 20 45 - 0 11 38 1 28 21 -0.35 59 0 0 0 30 2 2 53 29.7 52 125 8 - 0 12 17 1 12 31 - 0 19 48 1 20 7 -0.35 60 0 0 0 22 13 2 53 32.4 53 126 9 - 0 20 4 1 4 40 - 0 27 34 1 12 15 -0.35 61 0 0 0 14 47 2 53 35.0 54 127 10 - 0 27 28 0 57 12 - 0 34 58 1 4 47 -0.35 62 0 0 0 7 44 2 53 37.7 55 127 11 - 0 34 28 0 50 8 - 0 41 58 0 57 42 -0.35 63 0 0 0 1 5 2 53 40.5 56 128 12 - 0 41 6 0 43 27 - 0 48 35 0 51 1 -0.35 64 0 0 - 0 5 11 2 53 43.2 57 129 13 - 0 47 20 0 37 10 - 0 54 49 0 44 44 -0.36 65 0 0 - 0 11 3 2 53 46.0 58 130 14 - 0 53 10 0 31 16 - 1 0 39 0 38 50 -0.36 66 0 0 - 0 16 31 2 53 48.8 58 131 15 - 0 58 37 0 25 46 - 1 6 6 0 33 19 -0.36 67 0 0 - 0 21 36 2 53 51.6 59 132 16 - 1 3 41 0 20 40 - 1 11 9 0 28 13 -0.36 68 0 0 - 0 26 17 2 53 54.4 60 133 17 - 1 8 21 0 15 58 - 1 15 49 0 23 31 -0.36 69 0 0 - 0 30 34 2 53 57.3 61 134 18 - 1 12 37 0 11 39 - 1 20 5 0 19 12 -0.36 70 0 0 - 0 34 27 2 54 0.2 62 135 19 - 1 16 29 0 7 45 - 1 23 57 0 15 18 -0.36 71 0 0 - 0 37 57 2 54 3.1 62 136 20 - 1 19 57 0 4 15 - 1 27 25 0 11 47 -0.36 72 0 0 - 0 41 2 2 54 6.0 63 138 21 - 1 23 2 0 1 9 - 1 30 30 0 8 41 -0.36 73 0 0 - 0 43 43 2 54 9.0 64 139 22 - 1 25 42 - 0 1 33 - 1 33 10 0 5 59 -0.36 74 0 0 - 0 46 1 2 54 11.9 65 141 23 - 1 27 59 - 0 3 51 - 1 35 27 0 3 41 -0.36 75 0 0 - 0 47 54 2 54 14.9 65 142 24 - 1 29 52 - 0 5 45 - 1 37 19 0 1 47 -0.36 76 0 0 - 0 49 23 2 54 17.9 66 144 25 - 1 31 20 - 0 7 14 - 1 38 48 0 0 17 -0.36 77 0 0 - 0 50 28 2 54 20.9 66 146 26 - 1 32 25 - 0 8 20 - 1 39 52 - 0 0 48 -0.36 78 0 0 - 0 51 9 2 54 23.9 67 148 27 - 1 33 6 - 0 9 1 - 1 40 33 - 0 1 29 -0.36 79 0 0 - 0 51 25 2 54 27.0 67 150 28 - 1 33 22 - 0 9 17 - 1 40 50 - 0 1 46 -0.36 80 0 0 - 0 51 18 2 54 30.0 68 152 29 - 1 33 15 - 0 9 10 - 1 40 42 - 0 1 38 -0.36 81 0 0 - 0 50 46 2 54 33.1 68 154 30 - 1 32 43 - 0 8 38 - 1 40 11 - 0 1 6 -0.36 82 0 0 - 0 49 50 2 54 36.1 69 157 31 - 1 31 48 - 0 7 42 - 1 39 15 - 0 0 10 -0.36 83 0 0 - 0 48 30 2 54 39.2 69 159 32 - 1 30 28 - 0 6 22 - 1 37 56 0 1 10 -0.36 84 0 0 - 0 46 46 2 54 42.3 70 162 33 - 1 28 45 - 0 4 37 - 1 36 12 0 2 55 -0.36 85 0 0 - 0 44 38 2 54 45.4 70 164 34 - 1 26 37 - 0 2 28 - 1 34 5 0 5 4 -0.36 86 0 0 - 0 42 6 2 54 48.5 70 167 35 - 1 24 5 0 0 5 - 1 31 33 0 7 37 -0.36 87 0 0 - 0 39 9 2 54 51.6 70 170 36 - 1 21 10 0 3 2 - 1 28 38 0 10 34 -0.36 88 0 0 - 0 35 49 2 54 54.7 70 172 37 - 1 17 50 0 6 24 - 1 25 18 0 13 56 -0.36 89 0 0 - 0 32 4 2 54 57.8 70 175 38 - 1 14 7 0 10 9 - 1 21 35 0 17 42 -0.36 90 0 0 - 0 27 56 2 55 0.9 70 178 39 - 1 9 59 0 14 19 - 1 17 28 0 21 51 -0.36 91 0 0 - 0 23 23 2 55 4.0 70 181 40 - 1 5 28 0 18 52 - 1 12 57 0 26 25 -0.36 92 0 0 - 0 18 27 2 55 7.1 70 184 41 - 1 0 33 0 23 50 - 1 8 2 0 31 23 -0.36 93 0 0 - 0 13 7 2 55 10.2 70 186 42 - 0 55 15 0 29 11 - 1 2 44 0 36 45 -0.36 94 0 0 - 0 7 23 2 55 13.3 70 189 42 - 0 49 32 0 34 57 - 0 57 2 0 42 31 -0.36 95 0 0 - 0 1 16 2 55 16.4 69 192 43 - 0 43 26 0 41 6 - 0 50 56 0 48 40 -0.36 96 0 0 0 5 15 2 55 19.5 69 194 44 - 0 36 57 0 47 39 - 0 44 27 0 55 13 -0.36 97 0 0 0 12 10 2 55 22.6 69 197 45 - 0 30 4 0 54 35 - 0 37 34 1 2 10 -0.36 98 0 0 0 19 28 2 55 25.6 68 199 46 - 0 22 48 1 1 55 - 0 30 19 1 9 30 -0.36 99 0 0 0 27 10 2 55 28.7 68 201 47 - 0 15 9 1 9 39 - 0 22 40 1 17 14 -0.36 100 0 0 0 35 14 2 55 31.8 67 203 48 - 0 7 6 1 17 46 - 0 14 37 1 25 22 -0.36 101 0 0 0 43 42 2 55 34.8 67 206 49 0 1 20 1 26 16 - 0 6 12 1 33 52 -0.36 102 0 0 0 52 33 2 55 37.9 66 207 50 0 10 8 1 35 9 0 2 36 1 42 46 -0.36 103 0 0 1 1 47 2 55 40.9 66 209 50 0 19 20 1 44 25 0 11 47 1 52 2 -0.36 104 0 0 1 11 23 2 55 43.9 65 211 51 0 28 54 1 54 4 0 21 21 2 1 42 -0.36 105 0 0 1 21 23 2 55 46.9 64 213 52 0 38 51 2 4 6 0 31 17 2 11 44 -0.36 106 0 0 1 31 45 2 55 49.9 64 214 53 0 49 10 2 14 31 0 41 36 2 22 9 -0.36 107 0 0 1 42 29 2 55 52.9 63 216 54 0 59 52 2 25 17 0 52 17 2 32 56 -0.36 108 0 0 1 53 35 2 55 55.9 62 217 55 1 10 55 2 36 27 1 3 20 2 44 6 -0.36 109 0 0 2 5 4 2 55 58.8 61 218 55 1 22 21 2 47 58 1 14 45 2 55 38 -0.36 110 0 0 2 16 54 2 56 1.7 60 220 56 1 34 8 2 59 51 1 26 32 3 7 32 -0.36 111 0 0 2 29 6 2 56 4.6 60 221 57 1 46 17 3 12 6 1 38 41 3 19 47 -0.36 112 0 0 2 41 39 2 56 7.5 59 222 58 1 58 48 3 24 43 1 51 11 3 32 24 -0.36 113 0 0 2 54 34 2 56 10.4 58 223 58 2 11 40 3 37 41 2 4 2 3 45 23 -0.36 114 0 0 3 7 50 2 56 13.2 57 224 59 2 24 52 3 51 0 2 17 14 3 58 42 -0.36 115 0 0 3 21 27 2 56 16.0 56 225 60 2 38 26 4 4 39 2 30 47 4 12 23 -0.36 116 0 0 3 35 24 2 56 18.8 55 226 60 2 52 20 4 18 40 2 44 41 4 26 24 -0.36 117 0 0 3 49 42 2 56 21.6 55 227 61 3 6 35 4 33 1 2 58 55 4 40 46 -0.36 118 0 0 4 4 20 2 56 24.3 54 227 62 3 21 10 4 47 42 3 13 29 4 55 27 -0.36 119 0 0 4 19 18 2 56 27.0 53 228 62 3 36 4 5 2 44 3 28 23 5 10 29 -0.36 120 0 0 4 34 36 2 56 29.7 52 229 63 3 51 19 5 18 5 3 43 37 5 25 51 -0.36 121 0 0 4 50 13 2 56 32.3 51 229 63 4 6 52 5 33 45 3 59 10 5 41 32 -0.36 122 0 0 5 6 8 2 56 34.9 50 230 64 4 22 45 5 49 44 4 15 2 5 57 32 -0.36 123 0 0 5 22 23 2 56 37.5 49 231 64 4 38 56 6 6 3 4 31 13 6 13 51 -0.36 124 0 0 5 38 57 2 56 40.0 48 231 64 4 55 26 6 22 39 4 47 42 6 30 28 -0.36 125 0 0 5 55 48 2 56 42.5 47 232 65 5 12 14 6 39 34 5 4 30 6 47 23 -0.36 126 0 0 6 12 57 2 56 45.0 46 232 65 5 29 20 6 56 47 5 21 35 7 4 37 -0.36 127 0 0 6 30 24 2 56 47.4 45 233 65 5 46 43 7 14 17 5 38 58 7 22 8 -0.36 128 0 0 6 48 8 2 56 49.8 44 233 66 6 4 24 7 32 4 5 56 37 7 39 55 -0.36 129 0 0 7 6 8 2 56 52.1 43 234 66 6 22 21 7 50 8 6 14 34 7 58 0 -0.36 130 0 0 7 24 25 2 56 54.4 42 234 66 6 40 34 8 8 29 6 32 47 8 16 21 -0.36 131 0 0 7 42 58 2 56 56.7 41 235 66 6 59 4 8 27 5 6 51 16 8 34 58 -0.36 132 0 0 8 1 47 2 56 58.9 40 235 66 7 17 49 8 45 57 7 10 1 8 53 51 -0.36 133 0 0 8 20 51 2 57 1.1 39 235 66 7 36 50 9 5 4 7 29 1 9 12 58 -0.36 134 0 0 8 40 9 2 57 3.2 38 236 66 7 56 5 9 24 26 7 48 16 9 32 21 -0.36 135 0 0 8 59 42 2 57 5.3 37 236 66 8 15 35 9 44 2 8 7 45 9 51 58 -0.36 136 0 0 9 19 29 2 57 7.3 36 237 66 8 35 19 10 3 53 8 27 28 10 11 49 -0.36 137 0 0 9 39 30 2 57 9.3 35 237 65 8 55 16 10 23 56 8 47 25 10 31 53 -0.36 138 0 0 9 59 43 2 57 11.2 34 237 65 9 15 27 10 44 13 9 7 35 10 52 10 -0.36 139 0 0 10 20 9 2 57 13.1 33 238 65 9 35 50 11 4 42 9 27 57 11 12 40 -0.36 140 0 0 10 40 48 2 57 15.0 32 238 65 9 56 25 11 25 23 9 48 32 11 33 21 -0.36 141 0 0 11 1 37 2 57 16.7 31 238 64 10 17 12 11 46 16 10 9 18 11 54 15 -0.36 142 0 0 11 22 38 2 57 18.5 30 239 64 10 38 10 12 7 20 10 30 16 12 15 19 -0.36 143 0 0 11 43 50 2 57 20.1 29 239 63 10 59 19 12 28 34 10 51 24 12 36 34 -0.36 144 0 0 12 5 12 2 57 21.8 28 239 63 11 20 38 12 49 58 11 12 42 12 57 58 -0.36 145 0 0 12 26 43 2 57 23.3 27 240 62 11 42 6 13 11 32 11 34 11 13 19 33 -0.36 146 0 0 12 48 23 2 57 24.8 26 240 62 12 3 44 13 33 15 11 55 48 13 41 16 -0.36 147 0 0 13 10 12 2 57 26.3 25 240 61 12 25 30 13 55 7 12 17 34 14 3 8 -0.36 148 0 0 13 32 9 2 57 27.7 24 240 60 12 47 25 14 17 6 12 39 28 14 25 8 -0.36 149 0 0 13 54 13 2 57 29.0 23 241 60 13 9 27 14 39 12 13 1 30 14 47 15 -0.36 150 0 0 14 16 25 2 57 30.3 22 241 59 13 31 36 15 1 26 13 23 39 15 9 29 -0.36 151 0 0 14 38 42 2 57 31.5 21 241 58 13 53 52 15 23 46 13 45 54 15 31 49 -0.36 152 0 0 15 1 6 2 57 32.7 20 242 58 14 16 14 15 46 11 14 8 15 15 54 15 -0.36 153 0 0 15 23 35 2 57 33.8 19 242 57 14 38 41 16 8 42 14 30 42 16 16 46 -0.36 154 0 0 15 46 8 2 57 34.9 18 242 56 15 1 13 16 31 17 14 53 14 16 39 21 -0.36 155 0 0 16 8 46 2 57 35.9 17 243 55 15 23 49 16 53 57 15 15 50 17 2 1 -0.36 156 0 0 16 31 27 2 57 36.8 16 243 55 15 46 29 17 16 40 15 38 29 17 24 44 -0.36 157 0 0 16 54 12 2 57 37.7 15 243 54 16 9 12 17 39 25 16 1 12 17 47 30 -0.36 158 0 0 17 16 59 2 57 38.5 14 244 53 16 31 57 18 2 13 16 23 57 18 10 19 -0.36 159 0 0 17 39 47 2 57 39.2 13 244 52 16 54 45 18 25 3 16 46 45 18 33 9 -0.36 160 0 0 18 2 37 2 57 39.9 12 244 51 17 17 34 18 47 54 17 9 34 18 56 0 -0.36 161 0 0 18 25 28 2 57 40.6 11 245 50 17 40 24 19 10 46 17 32 23 19 18 52 -0.36 162 0 0 18 48 19 2 57 41.1 9 245 50 18 3 14 19 33 38 17 55 14 19 41 44 -0.36 163 0 0 19 11 10 2 57 41.7 8 245 49 18 26 4 19 56 29 18 18 4 20 4 35 -0.36 164 0 0 19 34 0 2 57 42.1 7 246 48 18 48 54 20 19 19 18 40 53 20 27 25 -0.36 165 0 0 19 56 48 2 57 42.5 6 246 47 19 11 42 20 42 8 19 3 41 20 50 14 -0.36 166 0 0 20 19 34 2 57 42.8 5 246 46 19 34 28 21 4 55 19 26 27 21 13 1 -0.36 167 0 0 20 42 18 2 57 43.1 4 247 45 19 57 11 21 27 39 19 49 11 21 35 45 -0.36 168 0 0 21 4 59 2 57 43.3 3 247 44 20 19 52 21 50 19 20 11 51 21 58 25 -0.36 169 0 0 21 27 36 2 57 43.5 2 247 43 20 42 29 22 12 56 20 34 29 22 21 2 -0.37 170 0 0 21 50 9 2 57 43.6 1 248 42 21 5 3 22 35 29 20 57 2 22 43 35 -0.38 171 0 0 22 12 37 2 57 43.7 0 248 42 21 27 31 22 57 56 21 19 31 23 6 2 -0.44 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 13.2 Data for the target star ------------------------ * name: UCAC4 350-128191 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 11 14.3014 DE: -20 09 12.524 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 11 14.3014 DE: -20 09 12.524 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.8 * B mag [mag]: 11.5 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (168) Sibylla asteroid class: approx. diameter [km]: 146 approx. diameter ["]: 0.049 distance from Earth [AU]: 4.08960 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#66 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): 0.015", 0.004", 88.482° remarks: * orbital elements for (168)Sibylla : Mean anomaly = 246.2011719973 deg Arg. of pericenter = 176.2218735463 deg Long. of node = 205.9215773288 deg Inclination = 4.6706363546 deg Eccentricity = 0.0748025872 Semimajor axis = 3.3744943956 AU Perihelion dist = 3.1220734845 AU Mag: H = 8.09, G = 0.15 Epoch of elements : MJD 60349.12151516 TDT (2024 Feb 09.1215) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#662023Apr24,4.01,2024,2,9,2.916366,-0.023210,0.336067,20.498488,1.455497,-0.004442,0.000143,-0.000001,0.000000 90.7051,-20.1492,139.79,-14.86,False UCAC4 350-128191,18.18730589,-20.1534790,11.51,10.83,10.46,0.1,0,,18.21082047,-20.1492427,3.78,3.70,0,0,0 168,Sibylla,14.58,145.895,4.0896,0,0,3.131,3.13,,7.2,0 0,246.1819,2024,2,9,176.2219,205.9216,4.6706,0.07480,3.37449,3.12207,8.08,5.0,0.15 1.089,0.0147,0.0043,88,0.0044,Known errors,0.87,0,-1,-1 20240209_128191,60138.16 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 13, 03:51 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org