IOTA/IOTA-ES occultation update for (2263) Shaanxi / HIP 94101 event on 2024 Oct 02, 14:47 UT Visible from Summary ------- On 2024 Oct 02 UT, the 23.1620168597472 km diameter asteroid (2263) Shaanxi will occult a 6.9 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 9.83 mag to 16.73 mag (the magnitude of the asteroid) for at most 1.670 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: 86 * date and approx. time of event: 2024 Oct 02, 14:41 - 2024 Oct 02, 14:54 * geocentric midpoint of event [JD]: 2460586.11655029 * magnitude of target star: 6.90 * magnitude drop [mag]: 9.83 * estimated maximum duration [s]: 1.670 * Moon: 0 % sunlit, 97° distance * Sun: 95° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 29 * 1 sigma uncertainty interval [path widths]: +/- 0.58 * 1 sigma uncertainty interval [seconds]: +/- 2.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.019, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.002", 91°) * approx speed of asteroid's shadow [km/s]: 14.5188 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of HIP 94101 by 2263 Shaanxi on 2024 Oct 2 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 - 28 0 0 9 1 3 14 41 40.1 0 125 70 8 51 36 9 10 30 8 40 37 9 21 34 .... - 27 0 0 8 19 54 14 41 40.2 1 125 70 8 10 31 8 29 18 7 59 37 8 40 16 -0.22 - 26 0 0 7 39 37 14 41 40.6 3 125 69 7 30 18 7 48 57 7 19 28 7 59 50 -0.40 - 25 0 0 7 0 11 14 41 41.2 4 125 69 6 50 56 7 9 27 6 40 10 7 20 16 -0.47 - 24 0 0 6 21 37 14 41 42.0 5 126 68 6 12 25 6 30 49 6 1 45 6 41 34 -0.51 - 23 0 0 5 43 55 14 41 43.1 6 126 68 5 34 48 5 53 4 5 24 11 6 3 44 -0.53 - 22 0 0 5 7 7 14 41 44.3 7 126 67 4 58 3 5 16 11 4 47 30 5 26 48 -0.55 - 21 0 0 4 31 11 14 41 45.8 8 126 66 4 22 11 4 40 13 4 11 43 4 50 44 -0.56 - 20 0 0 3 56 9 14 41 47.4 10 126 66 3 47 12 4 5 7 3 36 48 4 15 35 -0.57 - 19 0 0 3 22 1 14 41 49.3 11 126 65 3 13 8 3 30 56 3 2 47 3 41 19 -0.58 - 18 0 0 2 48 47 14 41 51.4 12 126 64 2 39 57 2 57 38 2 29 40 3 7 58 -0.58 - 17 0 0 2 16 26 14 41 53.6 13 126 63 2 7 40 2 25 14 1 57 27 2 35 30 -0.59 - 16 0 0 1 45 0 14 41 56.1 14 126 62 1 36 17 1 53 45 1 26 8 2 3 57 -0.59 - 15 0 0 1 14 28 14 41 58.7 15 126 61 1 5 48 1 23 10 0 55 42 1 33 19 -0.59 - 14 0 0 0 44 50 14 42 1.5 16 126 60 0 36 13 0 53 29 0 26 11 1 3 34 -0.60 - 13 0 0 0 16 7 14 42 4.4 17 126 60 0 7 32 0 24 43 - 0 2 27 0 34 45 -0.60 - 12 0 0 - 0 11 43 14 42 7.6 19 127 59 - 0 20 15 - 0 3 10 - 0 30 10 0 6 49 -0.60 - 11 0 0 - 0 38 38 14 42 10.9 20 127 58 - 0 47 7 - 0 30 8 - 0 56 59 - 0 20 12 -0.60 - 10 0 0 - 1 4 39 14 42 14.4 21 127 57 - 1 13 6 - 0 56 12 - 1 22 55 - 0 46 19 -0.61 - 9 0 0 - 1 29 47 14 42 18.0 22 127 56 - 1 38 11 - 1 21 22 - 1 47 57 - 1 11 32 -0.61 - 8 0 0 - 1 54 0 14 42 21.8 23 127 55 - 2 2 22 - 1 45 38 - 2 12 5 - 1 35 51 -0.61 - 7 0 0 - 2 17 20 14 42 25.7 24 127 54 - 2 25 40 - 2 9 0 - 2 35 20 - 1 59 16 -0.61 - 6 0 0 - 2 39 47 14 42 29.8 25 127 53 - 2 48 4 - 2 31 29 - 2 57 42 - 2 21 48 -0.61 - 5 0 0 - 3 1 20 14 42 34.0 26 127 52 - 3 9 35 - 2 53 4 - 3 19 10 - 2 43 26 -0.62 - 4 0 0 - 3 22 0 14 42 38.3 27 127 51 - 3 30 13 - 3 13 46 - 3 39 46 - 3 4 10 -0.62 - 3 0 0 - 3 41 47 14 42 42.8 28 127 50 - 3 49 57 - 3 33 35 - 3 59 28 - 3 24 1 -0.62 - 2 0 0 - 4 0 41 14 42 47.5 29 128 49 - 4 8 50 - 3 52 31 - 4 18 18 - 3 43 0 -0.62 - 1 0 0 - 4 18 42 14 42 52.2 30 128 48 - 4 26 49 - 4 10 34 - 4 36 16 - 4 1 5 -0.62 0 0 0 - 4 35 51 14 42 57.1 31 128 47 - 4 43 56 - 4 27 45 - 4 53 21 - 4 18 18 -0.62 1 0 0 - 4 52 8 14 43 2.1 32 128 46 - 5 0 11 - 4 44 3 - 5 9 34 - 4 34 38 -0.62 2 0 0 - 5 7 32 14 43 7.2 33 128 45 - 5 15 34 - 4 59 29 - 5 24 55 - 4 50 6 -0.62 3 0 0 - 5 22 4 14 43 12.5 34 128 44 - 5 30 5 - 5 14 3 - 5 39 24 - 5 4 41 -0.63 4 0 0 - 5 35 45 14 43 17.8 35 129 43 - 5 43 44 - 5 27 45 - 5 53 2 - 5 18 25 -0.63 5 0 0 - 5 48 34 14 43 23.3 36 129 42 - 5 56 32 - 5 40 35 - 6 5 48 - 5 31 17 -0.63 6 0 0 - 6 0 32 14 43 28.8 37 129 41 - 6 8 28 - 5 52 34 - 6 17 43 - 5 43 17 -0.63 7 0 0 - 6 11 38 14 43 34.5 37 129 40 - 6 19 33 - 6 3 41 - 6 28 47 - 5 54 26 -0.63 8 0 0 - 6 21 53 14 43 40.3 38 130 39 - 6 29 47 - 6 13 57 - 6 38 59 - 6 4 43 -0.63 9 0 0 - 6 31 17 14 43 46.2 39 130 38 - 6 39 10 - 6 23 22 - 6 48 21 - 6 14 9 -0.63 10 0 0 - 6 39 49 14 43 52.2 40 130 37 - 6 47 42 - 6 31 56 - 6 56 52 - 6 22 43 -0.63 11 0 0 - 6 47 31 14 43 58.3 41 131 35 - 6 55 23 - 6 39 39 - 7 4 32 - 6 30 27 -0.63 12 0 0 - 6 54 22 14 44 4.5 42 131 34 - 7 2 14 - 6 46 30 - 7 11 22 - 6 37 20 -0.63 13 0 0 - 7 0 23 14 44 10.7 43 131 33 - 7 8 14 - 6 52 31 - 7 17 21 - 6 43 21 -0.63 14 0 0 - 7 5 32 14 44 17.1 43 132 32 - 7 13 23 - 6 57 41 - 7 22 30 - 6 48 32 -0.64 15 0 0 - 7 9 51 14 44 23.5 44 132 31 - 7 17 41 - 7 2 1 - 7 26 48 - 6 52 52 -0.64 16 0 0 - 7 13 20 14 44 30.1 45 133 30 - 7 21 10 - 7 5 30 - 7 30 16 - 6 56 21 -0.64 17 0 0 - 7 15 58 14 44 36.7 46 133 29 - 7 23 47 - 7 8 8 - 7 32 53 - 6 58 59 -0.64 18 0 0 - 7 17 45 14 44 43.4 47 134 28 - 7 25 34 - 7 9 55 - 7 34 40 - 7 0 47 -0.64 19 0 0 - 7 18 41 14 44 50.2 47 135 27 - 7 26 31 - 7 10 51 - 7 35 36 - 7 1 43 -0.64 20 0 0 - 7 18 47 14 44 57.1 48 135 26 - 7 26 37 - 7 10 57 - 7 35 42 - 7 1 49 -0.64 21 0 0 - 7 18 3 14 45 4.1 49 136 25 - 7 25 52 - 7 10 12 - 7 34 58 - 7 1 4 -0.64 22 0 0 - 7 16 27 14 45 11.1 49 137 24 - 7 24 17 - 7 8 37 - 7 33 23 - 6 59 28 -0.64 23 0 0 - 7 14 1 14 45 18.2 50 138 23 - 7 21 51 - 7 6 10 - 7 30 57 - 6 57 1 -0.64 24 0 0 - 7 10 43 14 45 25.4 51 138 22 - 7 18 34 - 7 2 52 - 7 27 41 - 6 53 43 -0.64 25 0 0 - 7 6 35 14 45 32.7 51 139 21 - 7 14 26 - 6 58 43 - 7 23 33 - 6 49 33 -0.64 26 0 0 - 7 1 36 14 45 40.0 52 140 20 - 7 9 27 - 6 53 43 - 7 18 35 - 6 44 33 -0.64 27 0 0 - 6 55 45 14 45 47.4 53 141 19 - 7 3 37 - 6 47 52 - 7 12 46 - 6 38 40 -0.64 28 0 0 - 6 49 2 14 45 54.9 53 142 18 - 6 56 55 - 6 41 9 - 7 6 5 - 6 31 56 -0.64 29 0 0 - 6 41 29 14 46 2.5 54 143 17 - 6 49 22 - 6 33 34 - 6 58 33 - 6 24 21 -0.64 30 0 0 - 6 33 3 14 46 10.1 54 144 16 - 6 40 57 - 6 25 7 - 6 50 9 - 6 15 53 -0.64 31 0 0 - 6 23 45 14 46 17.8 55 146 15 - 6 31 41 - 6 15 49 - 6 40 54 - 6 6 33 -0.64 32 0 0 - 6 13 35 14 46 25.5 55 147 14 - 6 21 32 - 6 5 37 - 6 30 46 - 5 56 20 -0.64 33 0 0 - 6 2 32 14 46 33.3 55 148 13 - 6 10 30 - 5 54 33 - 6 19 46 - 5 45 15 -0.64 34 0 0 - 5 50 37 14 46 41.2 56 149 12 - 5 58 36 - 5 42 37 - 6 7 54 - 5 33 17 -0.64 35 0 0 - 5 37 49 14 46 49.1 56 151 11 - 5 45 50 - 5 29 47 - 5 55 9 - 5 20 25 -0.64 36 0 0 - 5 24 7 14 46 57.1 56 152 10 - 5 32 10 - 5 16 4 - 5 41 31 - 5 6 40 -0.64 37 0 0 - 5 9 32 14 47 5.1 57 154 9 - 5 17 36 - 5 1 27 - 5 26 59 - 4 52 2 -0.64 38 0 0 - 4 54 3 14 47 13.2 57 155 8 - 5 2 9 - 4 45 57 - 5 11 34 - 4 36 29 -0.64 39 0 0 - 4 37 40 14 47 21.3 57 157 7 - 4 45 48 - 4 29 32 - 4 55 15 - 4 20 2 -0.64 40 0 0 - 4 20 23 14 47 29.5 57 158 6 - 4 28 32 - 4 12 13 - 4 38 2 - 4 2 41 -0.64 41 0 0 - 4 2 11 14 47 37.8 57 160 5 - 4 10 22 - 3 53 59 - 4 19 54 - 3 44 24 -0.64 42 0 0 - 3 43 4 14 47 46.0 57 162 4 - 3 51 18 - 3 34 50 - 4 0 51 - 3 25 13 -0.64 43 0 0 - 3 23 2 14 47 54.3 57 163 3 - 3 31 17 - 3 14 45 - 3 40 54 - 3 5 6 -0.64 44 0 0 - 3 2 4 14 48 2.7 57 165 1 - 3 10 22 - 2 53 45 - 3 20 1 - 2 44 3 -0.64 45 0 0 - 2 40 10 14 48 11.1 57 166 0 - 2 48 30 - 2 31 49 - 2 58 12 - 2 22 4 -0.64 46 0 0 - 2 17 20 14 48 19.5 57 168 -1 - 2 25 43 - 2 8 56 - 2 35 28 - 1 59 8 -0.64 47 0 0 - 1 53 34 14 48 28.0 57 170 -2 - 2 1 59 - 1 45 7 - 2 11 47 - 1 35 16 -0.64 48 0 0 - 1 28 50 14 48 36.4 57 171 -3 - 1 37 19 - 1 20 21 - 1 47 10 - 1 10 27 -0.64 49 0 0 - 1 3 10 14 48 44.9 56 173 -4 - 1 11 41 - 0 54 38 - 1 21 35 - 0 44 41 -0.64 50 0 0 - 0 36 33 14 48 53.5 56 175 -5 - 0 45 7 - 0 27 58 - 0 55 4 - 0 17 57 -0.64 51 0 0 - 0 8 58 14 49 2.0 56 176 -6 - 0 17 34 - 0 0 20 - 0 27 35 0 9 45 -0.64 52 0 0 0 19 35 14 49 10.5 55 178 -7 0 10 55 0 28 16 0 0 51 0 38 24 -0.64 53 0 0 0 49 6 14 49 19.1 55 179 -8 0 40 23 0 57 50 0 30 14 1 8 2 -0.64 54 0 0 1 19 35 14 49 27.6 54 181 -9 1 10 48 1 28 22 1 0 36 1 38 38 -0.64 55 0 0 1 51 2 14 49 36.1 54 182 -10 1 42 12 1 59 53 1 31 56 2 10 12 -0.64 56 0 0 2 23 27 14 49 44.7 53 183 -11 2 14 34 2 32 22 2 4 14 2 42 45 -0.64 57 0 0 2 56 51 14 49 53.2 52 185 -12 2 47 54 3 5 49 2 37 30 3 16 17 -0.64 58 0 0 3 31 13 14 50 1.7 52 186 -13 3 22 12 3 40 15 3 11 44 3 50 47 -0.64 59 0 0 4 6 34 14 50 10.1 51 187 -14 3 57 29 4 15 39 3 46 56 4 26 16 -0.64 60 0 0 4 42 52 14 50 18.6 50 189 -16 4 33 44 4 52 2 4 23 6 5 2 43 -0.64 61 0 0 5 20 9 14 50 26.9 50 190 -17 5 10 57 5 29 22 5 0 15 5 40 8 -0.64 62 0 0 5 58 23 14 50 35.3 49 191 -18 5 49 7 6 7 41 5 38 21 6 18 32 -0.64 63 0 0 6 37 36 14 50 43.6 48 192 -19 6 28 15 6 46 57 6 17 24 6 57 53 -0.63 64 0 0 7 17 45 14 50 51.8 47 193 -20 7 8 20 7 27 11 6 57 24 7 38 11 -0.63 65 0 0 7 58 51 14 50 59.9 46 194 -21 7 49 22 8 8 21 7 38 21 8 19 27 -0.63 66 0 0 8 40 53 14 51 8.0 45 195 -22 8 31 20 8 50 28 8 20 14 9 1 39 -0.63 67 0 0 9 23 51 14 51 16.0 44 196 -23 9 14 13 9 33 30 9 3 2 9 44 46 -0.63 68 0 0 10 7 44 14 51 23.8 43 197 -24 9 58 1 10 17 27 9 46 45 10 28 49 -0.63 69 0 0 10 52 30 14 51 31.6 42 198 -25 10 42 43 11 2 18 10 31 22 11 13 45 -0.63 70 0 0 11 38 10 14 51 39.3 41 199 -26 11 28 19 11 48 3 11 16 51 11 59 35 -0.63 71 0 0 12 24 42 14 51 46.8 40 200 -27 12 14 46 12 34 39 12 3 13 12 46 17 -0.63 72 0 0 13 12 4 14 51 54.2 39 200 -28 13 2 3 13 22 6 12 50 25 13 33 50 -0.63 73 0 0 14 0 16 14 52 1.5 38 201 -29 13 50 11 14 10 23 13 38 27 14 22 12 -0.63 74 0 0 14 49 17 14 52 8.6 37 202 -30 14 39 6 14 59 28 14 27 17 15 11 23 -0.63 75 0 0 15 39 3 14 52 15.6 36 203 -31 15 28 48 15 49 20 15 16 54 16 1 20 -0.63 76 0 0 16 29 35 14 52 22.4 35 203 -32 16 19 15 16 39 57 16 7 15 16 52 3 -0.63 77 0 0 17 20 50 14 52 29.0 33 204 -32 17 10 26 17 31 17 16 58 20 17 43 28 -0.63 78 0 0 18 12 47 14 52 35.4 32 205 -33 18 2 17 18 23 18 17 50 5 18 35 35 -0.63 79 0 0 19 5 22 14 52 41.6 31 205 -34 18 54 48 19 15 58 18 42 30 19 28 21 -0.63 80 0 0 19 58 34 14 52 47.7 30 206 -35 19 47 55 20 9 15 19 35 33 20 21 44 -0.63 81 0 0 20 52 21 14 52 53.5 29 206 -36 20 41 37 21 3 7 20 29 9 21 15 42 -0.63 82 0 0 21 46 41 14 52 59.1 27 207 -37 21 35 52 21 57 31 21 23 18 22 10 11 -0.63 83 0 0 22 41 29 14 53 4.4 26 208 -37 22 30 36 22 52 25 22 17 57 23 5 10 -0.63 84 0 0 23 36 45 14 53 9.6 25 208 -38 23 25 47 23 47 45 23 13 3 24 0 36 -0.63 85 0 0 24 32 25 14 53 14.5 24 209 -39 24 21 22 24 43 30 24 8 33 24 56 26 -0.63 86 0 0 25 28 26 14 53 19.1 22 209 -39 25 17 19 25 39 35 25 4 24 25 52 37 -0.63 87 0 0 26 24 45 14 53 23.5 21 210 -40 26 13 34 26 35 58 26 0 34 26 49 5 -0.63 88 0 0 27 21 19 14 53 27.6 20 211 -40 27 10 3 27 32 36 26 56 58 27 45 48 -0.63 89 0 0 28 18 4 14 53 31.5 19 211 -41 28 6 44 28 29 26 27 53 35 28 42 43 -0.63 90 0 0 29 14 58 14 53 35.1 17 212 -41 29 3 35 29 26 24 28 50 21 29 39 46 -0.63 91 0 0 30 11 58 14 53 38.5 16 212 -42 30 0 30 30 23 28 29 47 12 30 36 54 -0.63 92 0 0 31 8 59 14 53 41.6 15 213 -42 30 57 28 31 20 33 30 44 6 31 34 3 -0.63 93 0 0 32 5 59 14 53 44.4 13 213 -43 31 54 24 32 17 36 31 40 58 32 31 10 -0.63 94 0 0 33 2 54 14 53 46.9 12 214 -43 32 51 16 33 14 34 32 37 46 33 28 12 -0.63 95 0 0 33 59 40 14 53 49.2 11 215 -43 33 47 59 34 11 23 33 34 25 34 25 6 -0.63 96 0 0 34 56 15 14 53 51.2 10 215 -43 34 44 31 35 8 1 34 30 54 35 21 46 -0.64 97 0 0 35 52 34 14 53 53.0 8 216 -43 35 40 47 36 4 23 35 27 7 36 18 12 -0.64 98 0 0 36 48 35 14 53 54.5 7 216 -44 36 36 46 37 0 26 36 23 3 37 14 18 -0.64 99 0 0 37 44 14 14 53 55.8 6 217 -44 37 32 23 37 56 7 37 18 37 38 10 1 -0.64 100 0 0 38 39 28 14 53 56.8 5 218 -44 38 27 35 38 51 23 38 13 47 39 5 19 -0.65 101 0 0 39 34 14 14 53 57.6 4 218 -44 39 22 19 39 46 11 39 8 30 40 0 9 -0.66 102 0 0 40 28 29 14 53 58.1 2 219 -44 40 16 32 40 40 27 40 2 41 40 54 27 -0.68 103 0 0 41 22 9 14 53 58.4 1 220 -44 41 10 12 41 34 9 40 56 20 41 48 10 -0.72 104 0 0 42 15 13 14 53 58.5 0 220 -43 42 3 16 .. .. .. 41 49 22 .. .. .. -1.98 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: HIP 94101 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 09 21.7325 DE: -34 29 23.751 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 09 21.7323 DE: -34 29 23.751 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 6.9 * B mag [mag]: 7.9 * Diameter [mas]: 0.60 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2263) Shaanxi asteroid class: approx. diameter [km]: 23 approx. diameter ["]: 0.012 distance from Earth [AU]: 2.58750 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#58 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): 0.019", 0.002", 91.279° remarks: * orbital elements for (2263)Shaanxi : Mean anomaly = 305.6267057686 deg Arg. of pericenter = 316.6854032046 deg Long. of node = 54.3263464980 deg Inclination = 11.4027300025 deg Eccentricity = 0.1085038878 Semimajor axis = 3.0175018783 AU Perihelion dist = 2.6900911931 AU Mag: H = 11.38, G = 0.15 Epoch of elements : MJD 60585.61654984 TDT (2024 Oct 02.6165) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#582023Apr24,1.67,2024,10,2,14.797207,-0.199085,0.502391,7.615300,3.026843,0.005707,0.000817,0.000000,0.000000 53.9774,-34.4522,-44.67,-3.92,False HIP 94101,19.15603684,-34.4899307,7.85,6.90,6.39,0.6,0,,19.18322032,-34.4521534,9.83,9.90,0,0,0 2263,Shaanxi,16.73,24.288,2.5875,0,0,2.093,10.29,,1.6,0 0,305.5108,2024,10,2,316.6854,54.3263,11.4027,0.10850,3.01750,2.69009,11.38,5.0,0.15 1.582,0.0187,0.0022,91,0.0076,Known errors,1.08,0,-1,-1 20241002__94101,60140.60 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 14:30 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org