IOTA/IOTA-ES occultation update for (2505) Hebei / UCAC4 328-103767 event on 2024 Oct 03, 16:58 UT Visible from Summary ------- On 2024 Oct 03 UT, the 23.4526937968383 km diameter asteroid (2505) Hebei will occult a 11.5 mag star in the constellation Ophiuchus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.61 mag to 17.09 mag (the magnitude of the asteroid) for at most 0.810 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: 2024 Oct 03, 16:54 - 2024 Oct 03, 17:01 * geocentric midpoint of event [JD]: 2460587.20697475 * magnitude of target star: 11.49 * magnitude drop [mag]: 5.61 * estimated maximum duration [s]: 0.810 * Moon: 1 % sunlit, 61° distance * Sun: 71° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 26 * 1 sigma uncertainty interval [path widths]: +/- 0.14 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.021, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.021", 0.001", 96°) * approx speed of asteroid's shadow [km/s]: 29.1332 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 328-103767 by 2505 Hebei on 2024 Oct 3 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 - 83 0 0 25 48 34 16 54 44.0 0 117 59 25 40 39 25 56 31 25 38 22 .. .. .. .... - 82 0 0 25 20 19 16 54 44.0 1 118 60 25 12 24 25 28 16 25 10 7 25 30 32 -0.08 - 81 0 0 24 52 0 16 54 44.1 2 118 61 24 44 5 24 59 56 24 41 49 25 2 13 -0.26 - 80 0 0 24 23 38 16 54 44.3 3 119 61 24 15 43 24 31 34 24 13 27 24 33 50 -0.32 - 79 0 0 23 55 13 16 54 44.6 4 119 62 23 47 18 24 3 9 23 45 2 24 5 25 -0.36 - 78 0 0 23 26 47 16 54 44.9 5 120 62 23 18 52 23 34 42 23 16 36 23 36 59 -0.38 - 77 0 0 22 58 20 16 54 45.3 6 120 63 22 50 25 23 6 15 22 48 10 23 8 31 -0.39 - 76 0 0 22 29 53 16 54 45.9 7 120 63 22 21 59 22 37 47 22 19 43 22 40 3 -0.40 - 75 0 0 22 1 26 16 54 46.4 8 121 64 21 53 33 22 9 21 21 51 17 22 11 37 -0.40 - 74 0 0 21 33 1 16 54 47.1 9 121 64 21 25 8 21 40 55 21 22 53 21 43 11 -0.41 - 73 0 0 21 4 39 16 54 47.9 10 121 64 20 56 46 21 12 32 20 54 31 21 14 48 -0.41 - 72 0 0 20 36 20 16 54 48.7 11 122 65 20 28 27 20 44 13 20 26 12 20 46 28 -0.42 - 71 0 0 20 8 4 16 54 49.6 12 122 65 20 0 13 20 15 57 19 57 57 20 18 12 -0.42 - 70 0 0 19 39 54 16 54 50.6 14 123 65 19 32 3 19 47 46 19 29 48 19 50 1 -0.42 - 69 0 0 19 11 49 16 54 51.7 15 123 65 19 3 58 19 19 41 19 1 44 19 21 56 -0.43 - 68 0 0 18 43 51 16 54 52.8 16 123 66 18 36 1 18 51 42 18 33 46 18 53 57 -0.43 - 67 0 0 18 16 0 16 54 54.1 17 124 66 18 8 10 18 23 50 18 5 56 18 26 5 -0.43 - 66 0 0 17 48 17 16 54 55.4 18 124 66 17 40 28 17 56 6 17 38 13 17 58 21 -0.43 - 65 0 0 17 20 42 16 54 56.8 19 124 66 17 12 54 17 28 31 17 10 40 17 30 45 -0.43 - 64 0 0 16 53 18 16 54 58.3 20 125 65 16 45 30 17 1 6 16 43 16 17 3 20 -0.43 - 63 0 0 16 26 3 16 54 59.8 21 125 65 16 18 16 16 33 51 16 16 3 16 36 5 -0.44 - 62 0 0 15 59 0 16 55 1.4 22 125 65 15 51 14 16 6 47 15 49 1 16 9 0 -0.44 - 61 0 0 15 32 9 16 55 3.2 23 126 65 15 24 23 15 39 54 15 22 10 15 42 8 -0.44 - 60 0 0 15 5 30 16 55 4.9 24 126 65 14 57 46 15 13 15 14 55 33 15 15 28 -0.44 - 59 0 0 14 39 5 16 55 6.8 25 126 64 14 31 21 14 46 49 14 29 8 14 49 2 -0.44 - 58 0 0 14 12 53 16 55 8.7 26 127 64 14 5 10 14 20 36 14 2 58 14 22 49 -0.44 - 57 0 0 13 46 56 16 55 10.8 27 127 63 13 39 14 13 54 39 13 37 2 13 56 51 -0.44 - 56 0 0 13 21 15 16 55 12.8 28 128 63 13 13 34 13 28 57 13 11 22 13 31 9 -0.44 - 55 0 0 12 55 50 16 55 15.0 29 128 62 12 48 10 13 3 30 12 45 58 13 5 43 -0.44 - 54 0 0 12 30 41 16 55 17.2 30 128 62 12 23 2 12 38 21 12 20 50 12 40 33 -0.44 - 53 0 0 12 5 50 16 55 19.5 31 129 61 11 58 12 12 13 29 11 56 0 12 15 40 -0.44 - 52 0 0 11 41 17 16 55 21.9 32 129 61 11 33 39 11 48 55 11 31 28 11 51 6 -0.44 - 51 0 0 11 17 2 16 55 24.3 33 130 60 11 9 25 11 24 39 11 7 15 11 26 50 -0.45 - 50 0 0 10 53 6 16 55 26.8 34 130 59 10 45 31 11 0 42 10 43 20 11 2 53 -0.45 - 49 0 0 10 29 30 16 55 29.4 35 130 59 10 21 56 10 37 6 10 19 45 10 39 16 -0.45 - 48 0 0 10 6 15 16 55 32.0 36 131 58 9 58 41 10 13 49 9 56 31 10 15 59 -0.45 - 47 0 0 9 43 20 16 55 34.7 37 131 57 9 35 47 9 50 53 9 33 37 9 53 3 -0.45 - 46 0 0 9 20 46 16 55 37.5 38 132 56 9 13 14 9 28 18 9 11 5 9 30 28 -0.45 - 45 0 0 8 58 34 16 55 40.3 39 132 56 8 51 3 9 6 5 8 48 54 9 8 15 -0.45 - 44 0 0 8 36 44 16 55 43.1 40 133 55 8 29 14 8 44 15 8 27 5 8 46 24 -0.45 - 43 0 0 8 15 17 16 55 46.1 41 133 54 8 7 48 8 22 47 8 5 40 8 24 56 -0.45 - 42 0 0 7 54 13 16 55 49.0 42 134 53 7 46 45 8 1 42 7 44 37 8 3 51 -0.45 - 41 0 0 7 33 33 16 55 52.1 43 134 52 7 26 6 7 41 1 7 23 58 7 43 9 -0.45 - 40 0 0 7 13 16 16 55 55.1 44 135 52 7 5 50 7 20 43 7 3 42 7 22 51 -0.45 - 39 0 0 6 53 24 16 55 58.3 45 135 51 6 45 59 7 0 50 6 43 51 7 2 58 -0.45 - 38 0 0 6 33 57 16 56 1.4 46 136 50 6 26 33 6 41 22 6 24 25 6 43 30 -0.45 - 37 0 0 6 14 55 16 56 4.7 47 137 49 6 7 31 6 22 19 6 5 24 6 24 26 -0.45 - 36 0 0 5 56 18 16 56 7.9 48 137 48 5 48 55 6 3 41 5 46 48 6 5 48 -0.45 - 35 0 0 5 38 7 16 56 11.2 49 138 47 5 30 45 5 45 29 5 28 38 5 47 36 -0.45 - 34 0 0 5 20 21 16 56 14.6 50 139 46 5 13 0 5 27 43 5 10 54 5 29 49 -0.45 - 33 0 0 5 3 2 16 56 18.0 51 140 45 4 55 42 5 10 23 4 53 36 5 12 29 -0.45 - 32 0 0 4 46 10 16 56 21.4 51 140 44 4 38 51 4 53 30 4 36 45 4 55 36 -0.45 - 31 0 0 4 29 45 16 56 24.9 52 141 43 4 22 26 4 37 4 4 20 21 4 39 10 -0.45 - 30 0 0 4 13 46 16 56 28.4 53 142 42 4 6 29 4 21 5 4 4 23 4 23 10 -0.45 - 29 0 0 3 58 15 16 56 31.9 54 143 41 3 50 59 4 5 33 3 48 54 4 7 38 -0.46 - 28 0 0 3 43 12 16 56 35.4 55 144 40 3 35 56 3 50 29 3 33 51 3 52 34 -0.46 - 27 0 0 3 28 36 16 56 39.0 55 145 39 3 21 21 3 35 52 3 19 16 3 37 57 -0.46 - 26 0 0 3 14 29 16 56 42.7 56 146 39 3 7 14 3 21 44 3 5 10 3 23 48 -0.46 - 25 0 0 3 0 49 16 56 46.3 57 148 38 2 53 35 3 8 3 2 51 31 3 10 8 -0.46 - 24 0 0 2 47 38 16 56 50.0 58 149 37 2 40 25 2 54 52 2 38 21 2 56 56 -0.46 - 23 0 0 2 34 55 16 56 53.7 58 150 36 2 27 43 2 42 8 2 25 39 2 44 12 -0.46 - 22 0 0 2 22 41 16 56 57.4 59 151 35 2 15 29 2 29 53 2 13 26 2 31 57 -0.46 - 21 0 0 2 10 56 16 57 1.1 60 153 34 2 3 45 2 18 8 2 1 41 2 20 11 -0.46 - 20 0 0 1 59 39 16 57 4.9 60 154 33 1 52 29 2 6 51 1 50 26 2 8 54 -0.46 - 19 0 0 1 48 52 16 57 8.7 61 156 32 1 41 42 1 56 3 1 39 39 1 58 6 -0.46 - 18 0 0 1 38 34 16 57 12.5 62 157 31 1 31 24 1 45 44 1 29 22 1 47 47 -0.46 - 17 0 0 1 28 45 16 57 16.3 62 159 30 1 21 36 1 35 54 1 19 33 1 37 57 -0.46 - 16 0 0 1 19 25 16 57 20.1 63 161 29 1 12 17 1 26 34 1 10 14 1 28 37 -0.46 - 15 0 0 1 10 35 16 57 24.0 63 163 28 1 3 27 1 17 44 1 1 25 1 19 46 -0.46 - 14 0 0 1 2 15 16 57 27.8 63 164 27 0 55 7 1 9 23 0 53 5 1 11 25 -0.46 - 13 0 0 0 54 24 16 57 31.7 64 166 26 0 47 17 1 1 31 0 45 15 1 3 34 -0.46 - 12 0 0 0 47 3 16 57 35.5 64 168 25 0 39 56 0 54 10 0 37 54 0 56 12 -0.46 - 11 0 0 0 40 11 16 57 39.4 64 170 24 0 33 5 0 47 18 0 31 3 0 49 20 -0.46 - 10 0 0 0 33 49 16 57 43.3 65 173 23 0 26 44 0 40 56 0 24 42 0 42 58 -0.46 - 9 0 0 0 27 58 16 57 47.2 65 175 22 0 20 52 0 35 4 0 18 50 0 37 6 -0.46 - 8 0 0 0 22 36 16 57 51.1 65 177 21 0 15 30 0 29 41 0 13 29 0 31 43 -0.46 - 7 0 0 0 17 44 16 57 55.0 65 179 20 0 10 39 0 24 49 0 8 37 0 26 51 -0.46 - 6 0 0 0 13 22 16 57 58.9 65 181 19 0 6 17 0 20 27 0 4 16 0 22 29 -0.46 - 5 0 0 0 9 30 16 58 2.7 65 183 18 0 2 26 0 16 35 0 0 24 0 18 37 -0.46 - 4 0 0 0 6 8 16 58 6.6 65 186 17 - 0 0 56 0 13 13 - 0 2 58 0 15 15 -0.46 - 3 0 0 0 3 16 16 58 10.5 65 188 16 - 0 3 48 0 10 21 - 0 5 49 0 12 23 -0.46 - 2 0 0 0 0 55 16 58 14.4 65 190 15 - 0 6 9 0 7 59 - 0 8 11 0 10 1 -0.46 - 1 0 0 - 0 0 57 16 58 18.3 65 192 14 - 0 8 1 0 6 8 - 0 10 2 0 8 9 -0.46 0 0 0 - 0 2 18 16 58 22.1 65 194 13 - 0 9 22 0 4 46 - 0 11 23 0 6 48 -0.46 1 0 0 - 0 3 9 16 58 26.0 64 196 12 - 0 10 13 0 3 55 - 0 12 14 0 5 56 -0.46 2 0 0 - 0 3 31 16 58 29.9 64 198 11 - 0 10 34 0 3 34 - 0 12 36 0 5 35 -0.46 3 0 0 - 0 3 22 16 58 33.7 64 200 10 - 0 10 25 0 3 43 - 0 12 27 0 5 44 -0.46 4 0 0 - 0 2 42 16 58 37.5 63 202 9 - 0 9 46 0 4 22 - 0 11 48 0 6 23 -0.46 5 0 0 - 0 1 33 16 58 41.3 63 204 8 - 0 8 37 0 5 31 - 0 10 38 0 7 33 -0.46 6 0 0 0 0 6 16 58 45.1 63 206 6 - 0 6 58 0 7 11 - 0 8 59 0 9 12 -0.46 7 0 0 0 2 16 16 58 48.9 62 208 5 - 0 4 48 0 9 20 - 0 6 50 0 11 22 -0.46 8 0 0 0 4 55 16 58 52.7 62 209 4 - 0 2 9 0 12 0 - 0 4 10 0 14 2 -0.46 9 0 0 0 8 5 16 58 56.4 61 211 3 0 1 0 0 15 10 - 0 1 1 0 17 11 -0.46 10 0 0 0 11 44 16 59 0.2 60 212 2 0 4 40 0 18 49 0 2 38 0 20 51 -0.46 11 0 0 0 15 54 16 59 3.9 60 214 1 0 8 49 0 22 59 0 6 48 0 25 1 -0.46 12 0 0 0 20 34 16 59 7.6 59 215 0 0 13 29 0 27 39 0 11 27 0 29 41 -0.46 13 0 0 0 25 43 16 59 11.2 58 216 -1 0 18 38 0 32 49 0 16 36 0 34 51 -0.46 14 0 0 0 31 22 16 59 14.9 58 217 -2 0 24 17 0 38 28 0 22 15 0 40 30 -0.46 15 0 0 0 37 31 16 59 18.5 57 219 -3 0 30 25 0 44 38 0 28 23 0 46 40 -0.46 16 0 0 0 44 10 16 59 22.1 56 220 -4 0 37 4 0 51 17 0 35 2 0 53 19 -0.46 17 0 0 0 51 19 16 59 25.7 56 221 -5 0 44 12 0 58 26 0 42 10 1 0 28 -0.46 18 0 0 0 58 57 16 59 29.2 55 222 -6 0 51 50 1 6 4 0 49 47 1 8 7 -0.46 19 0 0 1 7 4 16 59 32.7 54 223 -7 0 59 57 1 14 13 0 57 54 1 16 15 -0.46 20 0 0 1 15 42 16 59 36.2 53 224 -8 1 8 33 1 22 50 1 6 31 1 24 53 -0.46 21 0 0 1 24 48 16 59 39.6 52 224 -9 1 17 39 1 31 57 1 15 37 1 34 0 -0.46 22 0 0 1 34 24 16 59 43.0 52 225 -10 1 27 15 1 41 33 1 25 12 1 43 36 -0.46 23 0 0 1 44 28 16 59 46.4 51 226 -11 1 37 19 1 51 38 1 35 16 1 53 42 -0.46 24 0 0 1 55 2 16 59 49.7 50 227 -12 1 47 52 2 2 13 1 45 49 2 4 16 -0.46 25 0 0 2 6 5 16 59 53.0 49 227 -13 1 58 54 2 13 16 1 56 51 2 15 20 -0.46 26 0 0 2 17 37 16 59 56.3 48 228 -14 2 10 25 2 24 48 2 8 22 2 26 52 -0.46 27 0 0 2 29 37 16 59 59.5 47 229 -15 2 22 25 2 36 49 2 20 21 2 38 53 -0.46 28 0 0 2 42 6 17 0 2.7 46 229 -16 2 34 53 2 49 19 2 32 49 2 51 23 -0.46 29 0 0 2 55 3 17 0 5.8 46 230 -17 2 47 49 3 2 16 2 45 45 3 4 21 -0.46 30 0 0 3 8 28 17 0 8.9 45 230 -18 3 1 14 3 15 42 2 59 10 3 17 47 -0.46 31 0 0 3 22 21 17 0 11.9 44 231 -19 3 15 6 3 29 36 3 13 2 3 31 41 -0.46 32 0 0 3 36 42 17 0 14.9 43 231 -20 3 29 27 3 43 58 3 27 22 3 46 3 -0.46 33 0 0 3 51 31 17 0 17.8 42 232 -21 3 44 15 3 58 48 3 42 10 4 0 53 -0.46 34 0 0 4 6 47 17 0 20.7 41 232 -22 3 59 30 4 14 5 3 57 25 4 16 10 -0.46 35 0 0 4 22 31 17 0 23.6 40 233 -23 4 15 13 4 29 49 4 13 8 4 31 55 -0.46 36 0 0 4 38 41 17 0 26.3 39 233 -24 4 31 23 4 46 0 4 29 17 4 48 6 -0.46 37 0 0 4 55 19 17 0 29.1 38 234 -25 4 47 59 5 2 38 4 45 53 5 4 45 -0.46 38 0 0 5 12 22 17 0 31.7 37 234 -26 5 5 2 5 19 43 5 2 56 5 21 49 -0.46 39 0 0 5 29 52 17 0 34.4 36 234 -27 5 22 31 5 37 14 5 20 25 5 39 20 -0.46 40 0 0 5 47 48 17 0 36.9 35 235 -28 5 40 26 5 55 10 5 38 19 5 57 17 -0.46 41 0 0 6 6 9 17 0 39.4 34 235 -29 5 58 46 6 13 33 5 56 39 6 15 40 -0.46 42 0 0 6 24 56 17 0 41.9 33 235 -30 6 17 32 6 32 20 6 15 25 6 34 27 -0.46 43 0 0 6 44 8 17 0 44.2 32 236 -31 6 36 43 6 51 33 6 34 36 6 53 40 -0.46 44 0 0 7 3 44 17 0 46.5 31 236 -32 6 56 18 7 11 10 6 54 11 7 13 18 -0.46 45 0 0 7 23 44 17 0 48.8 30 236 -33 7 16 18 7 31 11 7 14 10 7 33 19 -0.46 46 0 0 7 44 9 17 0 51.0 29 236 -34 7 36 41 7 51 37 7 34 33 7 53 45 -0.46 47 0 0 8 4 57 17 0 53.1 28 237 -35 7 57 28 8 12 25 7 55 20 8 14 34 -0.46 48 0 0 8 26 8 17 0 55.1 27 237 -36 8 18 38 8 33 37 8 16 30 8 35 46 -0.46 49 0 0 8 47 41 17 0 57.1 26 237 -37 8 40 11 8 55 12 8 38 2 8 57 21 -0.46 50 0 0 9 9 37 17 0 59.0 25 238 -38 9 2 6 9 17 9 8 59 57 9 19 18 -0.46 51 0 0 9 31 55 17 1 0.9 24 238 -39 9 24 23 9 39 27 9 22 13 9 41 37 -0.46 52 0 0 9 54 34 17 1 2.6 23 238 -40 9 47 1 10 2 7 9 44 51 10 4 17 -0.46 53 0 0 10 17 33 17 1 4.3 22 238 -41 10 10 0 10 25 8 10 7 50 10 27 18 -0.46 54 0 0 10 40 53 17 1 5.9 21 239 -42 10 33 18 10 48 28 10 31 8 10 50 39 -0.46 55 0 0 11 4 33 17 1 7.4 20 239 -43 10 56 57 11 12 9 10 54 47 11 14 20 -0.46 56 0 0 11 28 32 17 1 8.9 19 239 -44 11 20 55 11 36 9 11 18 44 11 38 20 -0.46 57 0 0 11 52 49 17 1 10.3 17 239 -45 11 45 12 12 0 27 11 43 1 12 2 38 -0.46 58 0 0 12 17 25 17 1 11.6 16 240 -46 12 9 46 12 25 3 12 7 35 12 27 15 -0.46 59 0 0 12 42 18 17 1 12.8 15 240 -47 12 34 38 12 49 57 12 32 27 12 52 9 -0.46 60 0 0 13 7 27 17 1 14.0 14 240 -48 12 59 47 13 15 8 12 57 35 13 17 20 -0.46 61 0 0 13 32 53 17 1 15.0 13 240 -49 13 25 12 13 40 35 13 23 0 13 42 47 -0.46 62 0 0 13 58 35 17 1 16.0 12 241 -50 13 50 53 14 6 17 13 48 41 14 8 30 -0.46 63 0 0 14 24 31 17 1 16.9 11 241 -50 14 16 49 14 32 14 14 14 36 14 34 27 -0.46 64 0 0 14 50 42 17 1 17.7 10 241 -51 14 42 58 14 58 26 14 40 46 15 0 39 -0.46 65 0 0 15 17 6 17 1 18.5 9 241 -52 15 9 22 15 24 51 15 7 9 15 27 4 -0.46 66 0 0 15 43 43 17 1 19.1 8 242 -53 15 35 58 15 51 29 15 33 45 15 53 42 -0.46 67 0 0 16 10 32 17 1 19.7 7 242 -54 16 2 47 16 18 19 16 0 33 16 20 33 -0.47 68 0 0 16 37 33 17 1 20.2 6 242 -55 16 29 46 16 45 20 16 27 33 16 47 34 -0.47 69 0 0 17 4 44 17 1 20.6 5 243 -55 16 56 57 17 12 32 16 54 43 17 14 46 -0.47 70 0 0 17 32 5 17 1 20.9 4 243 -56 17 24 17 17 39 54 17 22 3 17 42 8 -0.47 71 0 0 17 59 36 17 1 21.2 3 243 -57 17 51 47 18 7 25 17 49 33 18 9 39 -0.48 72 0 0 18 27 14 17 1 21.3 2 243 -58 18 19 25 18 35 4 18 17 11 18 37 19 -0.50 73 0 0 18 55 1 17 1 21.4 1 244 -58 18 47 11 19 2 51 18 44 56 19 5 6 -0.58 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 328-103767 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 21 48.1259 DE: -24 29 41.844 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 21 48.1259 DE: -24 29 41.844 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.500,0.300) * V mag [mag]: 11.5 * B mag [mag]: 12.4 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2505) Hebei asteroid class: approx. diameter [km]: 23 approx. diameter ["]: 0.012 distance from Earth [AU]: 2.77560 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 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): 0.021", 0.001", 96.398° remarks: * orbital elements for (2505)Hebei : Mean anomaly = 11.5579012108 deg Arg. of pericenter = 206.6957212714 deg Long. of node = 59.2278645825 deg Inclination = 2.0771188475 deg Eccentricity = 0.1719050902 Semimajor axis = 3.1455618794 AU Perihelion dist = 2.6048237807 AU Mag: H = 11.75, G = 0.15 Epoch of elements : MJD 60586.70697450 TDT (2024 Oct 03.7070) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Apr24,0.81,2024,10,3,16.967394,0.026866,0.417388,16.409039,-1.065197,0.005377,-0.000386,-0.000001,0.000000 -6.5719,-24.5200,-77.31,-4.34,False UCAC4 328-103767,17.36336835,-24.4949567,12.44,11.49,10.98,0.1,0,,17.38843539,-24.5199724,5.61,5.67,0,0,0 2505,Hebei,17.09,23.654,2.7756,0,0,3.809,-3.37,,1.2,0 0,11.4330,2024,10,3,206.6957,59.2279,2.0771,0.17191,3.14556,2.60482,11.75,5.0,0.15 1.143,0.0213,0.0014,96,0.0017,Known errors,1.92,0,-1,-1 20241003_103767,60140.61 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 14:35 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org