IOTA/IOTA-ES occultation update for (1309) Hyperborea / UCAC4 491-051976 event on 2024 Oct 07, 17:57 UT Visible from Summary ------- On 2024 Oct 07 UT, the 57.76 km diameter asteroid (1309) Hyperborea will occult a 11.4 mag star in the constellation Cancer for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.65 mag to 16.05 mag (the magnitude of the asteroid) for at most 1.830 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 07, 17:54 - 2024 Oct 07, 18:01 * geocentric midpoint of event [JD]: 2460591.24844300 * magnitude of target star: 11.42 * magnitude drop [mag]: 4.65 * estimated maximum duration [s]: 1.830 * Moon: 21 % sunlit, 114° distance * Sun: 62° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 61 * 1 sigma uncertainty interval [path widths]: +/- 0.15 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.021, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.022", 0.002", 104°) * approx speed of asteroid's shadow [km/s]: 31.5757 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 491-051976 by 1309 Hyperborea on 2024 Oct 7 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 111 0 0 40 26 13 17 54 34.3 0 80 -50 40 9 27 40 42 59 40 4 35 40 47 53 .... 112 0 0 40 34 29 17 54 34.3 1 80 -49 40 17 45 40 51 15 40 12 53 40 56 8 -0.27 113 0 0 40 42 26 17 54 34.4 2 81 -49 40 25 43 40 59 10 40 20 51 41 4 3 -0.30 114 0 0 40 50 2 17 54 34.5 2 82 -48 40 33 21 41 6 46 40 28 29 41 11 38 -0.31 115 0 0 40 57 19 17 54 34.6 3 82 -48 40 40 38 41 14 1 40 35 47 41 18 53 -0.31 116 0 0 41 4 15 17 54 34.8 4 83 -47 40 47 36 41 20 56 40 42 45 41 25 48 -0.32 117 0 0 41 10 51 17 54 35.0 5 84 -46 40 54 13 41 27 31 40 49 23 41 32 23 -0.32 118 0 0 41 17 8 17 54 35.3 6 84 -46 41 0 31 41 33 46 40 55 40 41 38 38 -0.32 119 0 0 41 23 4 17 54 35.6 6 85 -45 41 6 28 41 39 42 41 1 38 41 44 33 -0.32 120 0 0 41 28 40 17 54 35.9 7 86 -45 41 12 5 41 45 17 41 7 15 41 50 8 -0.33 121 0 0 41 33 57 17 54 36.3 8 86 -44 41 17 22 41 50 33 41 12 33 41 55 23 -0.33 122 0 0 41 38 53 17 54 36.7 9 87 -43 41 22 20 41 55 28 41 17 30 42 0 19 -0.33 123 0 0 41 43 30 17 54 37.1 9 88 -43 41 26 57 42 0 4 41 22 8 42 4 54 -0.33 124 0 0 41 47 46 17 54 37.6 10 88 -42 41 31 14 42 4 20 41 26 25 42 9 10 -0.33 125 0 0 41 51 43 17 54 38.1 11 89 -42 41 35 12 42 8 16 41 30 23 42 13 6 -0.33 126 0 0 41 55 20 17 54 38.6 12 90 -41 41 38 49 42 11 53 41 34 1 42 16 42 -0.33 127 0 0 41 58 37 17 54 39.2 12 90 -40 41 42 7 42 15 9 41 37 19 42 19 59 -0.33 128 0 0 42 1 35 17 54 39.8 13 91 -40 41 45 5 42 18 6 41 40 17 42 22 55 -0.33 129 0 0 42 4 12 17 54 40.5 14 92 -39 41 47 43 42 20 43 41 42 55 42 25 32 -0.33 130 0 0 42 6 30 17 54 41.1 15 92 -38 41 50 1 42 23 0 41 45 13 42 27 49 -0.33 131 0 0 42 8 28 17 54 41.9 15 93 -38 41 51 59 42 24 58 41 47 12 42 29 47 -0.33 132 0 0 42 10 6 17 54 42.6 16 94 -37 41 53 38 42 26 36 41 48 50 42 31 25 -0.33 133 0 0 42 11 24 17 54 43.4 17 94 -36 41 54 56 42 27 54 41 50 9 42 32 43 -0.33 134 0 0 42 12 23 17 54 44.2 18 95 -36 41 55 55 42 28 52 41 51 7 42 33 41 -0.33 135 0 0 42 13 2 17 54 45.1 18 96 -35 41 56 34 42 29 31 41 51 46 42 34 20 -0.33 136 0 0 42 13 21 17 54 45.9 19 96 -34 41 56 53 42 29 50 41 52 6 42 34 38 -0.33 137 0 0 42 13 20 17 54 46.9 20 97 -34 41 56 52 42 29 49 41 52 5 42 34 38 -0.33 138 0 0 42 12 59 17 54 47.8 20 98 -33 41 56 32 42 29 28 41 51 44 42 34 17 -0.33 139 0 0 42 12 19 17 54 48.8 21 99 -32 41 55 51 42 28 48 41 51 4 42 33 37 -0.33 140 0 0 42 11 19 17 54 49.8 22 99 -32 41 54 51 42 27 48 41 50 3 42 32 37 -0.33 141 0 0 42 9 58 17 54 50.9 23 100 -31 41 53 30 42 26 28 41 48 43 42 31 17 -0.33 142 0 0 42 8 19 17 54 52.0 23 101 -30 41 51 50 42 24 48 41 47 3 42 29 37 -0.33 143 0 0 42 6 19 17 54 53.1 24 101 -30 41 49 50 42 22 49 41 45 2 42 27 38 -0.33 144 0 0 42 3 59 17 54 54.2 25 102 -29 41 47 30 42 20 30 41 42 42 42 25 19 -0.33 145 0 0 42 1 19 17 54 55.4 26 103 -28 41 44 50 42 17 50 41 40 2 42 22 39 -0.33 146 0 0 41 58 20 17 54 56.7 26 104 -28 41 41 50 42 14 51 41 37 2 42 19 40 -0.33 147 0 0 41 55 0 17 54 57.9 27 104 -27 41 38 30 42 11 32 41 33 41 42 16 22 -0.33 148 0 0 41 51 21 17 54 59.2 28 105 -26 41 34 50 42 7 53 41 30 1 42 12 43 -0.33 149 0 0 41 47 21 17 55 0.5 29 106 -25 41 30 49 42 3 54 41 26 1 42 8 44 -0.33 150 0 0 41 43 1 17 55 1.9 29 107 -25 41 26 29 41 59 35 41 21 40 42 4 25 -0.33 151 0 0 41 38 21 17 55 3.3 30 107 -24 41 21 48 41 54 56 41 16 59 41 59 46 -0.33 152 0 0 41 33 21 17 55 4.7 31 108 -23 41 16 47 41 49 57 41 11 58 41 54 47 -0.33 153 0 0 41 28 1 17 55 6.2 32 109 -23 41 11 26 41 44 37 41 6 37 41 49 28 -0.33 154 0 0 41 22 21 17 55 7.7 32 110 -22 41 5 45 41 38 58 41 0 55 41 43 49 -0.33 155 0 0 41 16 20 17 55 9.2 33 110 -21 40 59 43 41 32 58 40 54 53 41 37 49 -0.33 156 0 0 41 9 59 17 55 10.8 34 111 -20 40 53 21 41 26 38 40 48 31 41 31 29 -0.33 157 0 0 41 3 17 17 55 12.4 35 112 -20 40 46 39 41 19 58 40 41 48 41 24 49 -0.33 158 0 0 40 56 16 17 55 14.0 35 113 -19 40 39 36 41 12 57 40 34 45 41 17 49 -0.33 159 0 0 40 48 53 17 55 15.7 36 113 -18 40 32 13 41 5 36 40 27 21 41 10 28 -0.33 160 0 0 40 41 11 17 55 17.4 37 114 -18 40 24 29 40 57 54 40 19 37 41 2 47 -0.33 161 0 0 40 33 7 17 55 19.2 38 115 -17 40 16 24 40 49 52 40 11 32 40 54 45 -0.33 162 0 0 40 24 44 17 55 21.0 38 116 -16 40 7 59 40 41 30 40 3 7 40 46 23 -0.33 163 0 0 40 15 59 17 55 22.8 39 117 -15 39 59 13 40 32 46 39 54 20 40 37 40 -0.33 164 0 0 40 6 54 17 55 24.6 40 118 -15 39 50 7 40 23 43 39 45 14 40 28 37 -0.33 165 0 0 39 57 28 17 55 26.5 41 118 -14 39 40 39 40 14 18 39 35 46 40 19 13 -0.33 166 0 0 39 47 41 17 55 28.5 41 119 -13 39 30 51 40 4 33 39 25 57 40 9 28 -0.33 167 0 0 39 37 34 17 55 30.4 42 120 -12 39 20 43 39 54 27 39 15 48 39 59 23 -0.33 168 0 0 39 27 6 17 55 32.4 43 121 -11 39 10 13 39 44 1 39 5 18 39 48 57 -0.33 169 0 0 39 16 17 17 55 34.5 44 122 -11 38 59 22 39 33 13 38 54 27 39 38 9 -0.33 170 0 0 39 5 7 17 55 36.6 44 123 -10 38 48 11 39 22 5 38 43 15 39 27 2 -0.33 171 0 0 38 53 36 17 55 38.7 45 124 -9 38 36 38 39 10 36 38 31 42 39 15 33 -0.33 172 0 0 38 41 44 17 55 40.8 46 124 -8 38 24 45 38 58 45 38 19 48 39 3 43 -0.33 173 0 0 38 29 32 17 55 43.0 47 125 -8 38 12 31 38 46 34 38 7 33 38 51 33 -0.33 174 0 0 38 16 58 17 55 45.3 47 126 -7 37 59 55 38 34 2 37 54 58 38 39 1 -0.33 175 0 0 38 4 3 17 55 47.5 48 127 -6 37 46 59 38 21 10 37 42 1 38 26 9 -0.33 176 0 0 37 50 48 17 55 49.8 49 128 -5 37 33 41 38 7 56 37 28 43 38 12 56 -0.33 177 0 0 37 37 11 17 55 52.2 50 129 -4 37 20 3 37 54 21 37 15 4 37 59 21 -0.33 178 0 0 37 23 14 17 55 54.6 50 130 -3 37 6 4 37 40 25 37 1 4 37 45 26 -0.33 179 0 0 37 8 55 17 55 57.0 51 131 -3 36 51 43 37 26 9 36 46 43 37 31 10 -0.33 -180 0 0 36 54 16 17 55 59.4 52 132 -2 36 37 2 37 11 31 36 32 1 37 16 33 -0.33 -179 0 0 36 39 15 17 56 1.9 53 133 -1 36 22 0 36 56 33 36 16 59 37 1 35 -0.33 -178 0 0 36 23 54 17 56 4.5 54 135 0 36 6 37 36 41 13 36 1 35 36 46 16 -0.33 -177 0 0 36 8 12 17 56 7.0 54 136 1 35 50 53 36 25 33 35 45 51 36 30 37 -0.33 -176 0 0 35 52 10 17 56 9.7 55 137 2 35 34 49 36 9 32 35 29 46 36 14 36 -0.33 -175 0 0 35 35 46 17 56 12.3 56 138 2 35 18 23 35 53 11 35 13 20 35 58 16 -0.33 -174 0 0 35 19 2 17 56 15.0 57 139 3 35 1 37 35 36 29 34 56 33 35 41 34 -0.33 -173 0 0 35 1 58 17 56 17.7 57 141 4 34 44 31 35 19 26 34 39 26 35 24 32 -0.33 -172 0 0 34 44 33 17 56 20.5 58 142 5 34 27 4 35 2 3 34 21 59 35 7 9 -0.33 -171 0 0 34 26 47 17 56 23.3 59 143 6 34 9 17 34 44 19 34 4 11 34 49 26 -0.33 -170 0 0 34 8 42 17 56 26.1 60 145 7 33 51 9 34 26 16 33 46 3 34 31 23 -0.33 -169 0 0 33 50 16 17 56 29.0 60 146 8 33 32 42 34 7 52 33 27 35 34 13 0 -0.33 -168 0 0 33 31 31 17 56 31.9 61 148 8 33 13 55 33 49 9 33 8 47 33 54 17 -0.33 -167 0 0 33 12 25 17 56 34.9 62 149 9 32 54 48 33 30 5 32 49 40 33 35 14 -0.33 -166 0 0 32 53 1 17 56 37.9 62 151 10 32 35 21 33 10 42 32 30 12 33 15 52 -0.33 -165 0 0 32 33 16 17 56 40.9 63 153 11 32 15 35 32 51 0 32 10 26 32 56 10 -0.33 -164 0 0 32 13 13 17 56 43.9 64 154 12 31 55 30 32 30 58 31 50 20 32 36 9 -0.33 -163 0 0 31 52 51 17 56 47.0 64 156 13 31 35 6 32 10 38 31 29 56 32 15 49 -0.33 -162 0 0 31 32 10 17 56 50.2 65 158 14 31 14 23 31 49 58 31 9 12 31 55 10 -0.33 -161 0 0 31 11 10 17 56 53.3 66 160 15 30 53 22 31 29 1 30 48 11 31 34 13 -0.33 -160 0 0 30 49 53 17 56 56.5 66 162 16 30 32 2 31 7 45 30 26 51 31 12 57 -0.33 -159 0 0 30 28 17 17 56 59.7 67 165 17 30 10 25 30 46 11 30 5 13 30 51 24 -0.33 -158 0 0 30 6 24 17 57 3.0 67 167 18 29 48 30 30 24 19 29 43 18 30 29 33 -0.33 -157 0 0 29 44 13 17 57 6.3 68 169 19 29 26 18 30 2 10 29 21 6 30 7 25 -0.34 -156 0 0 29 21 46 17 57 9.6 69 172 20 29 3 50 29 39 45 28 58 36 29 44 59 -0.34 -155 0 0 28 59 2 17 57 12.9 69 175 21 28 41 4 29 17 2 28 35 50 29 22 17 -0.34 -154 0 0 28 36 2 17 57 16.3 69 177 22 28 18 3 28 54 4 28 12 49 28 59 19 -0.34 -153 0 0 28 12 46 17 57 19.7 70 180 23 27 54 45 28 30 49 27 49 31 28 36 5 -0.34 -152 0 0 27 49 15 17 57 23.1 70 183 23 27 31 13 28 7 19 27 25 58 28 12 35 -0.34 -151 0 0 27 25 29 17 57 26.5 71 186 24 27 7 25 27 43 34 27 2 10 27 48 51 -0.34 -150 0 0 27 1 28 17 57 30.0 71 190 25 26 43 24 27 19 35 26 38 8 27 24 52 -0.34 -149 0 0 26 37 14 17 57 33.5 71 193 26 26 19 8 26 55 21 26 13 52 27 0 39 -0.34 -148 0 0 26 12 45 17 57 37.0 71 196 27 25 54 39 26 30 54 25 49 22 26 36 12 -0.34 -147 0 0 25 48 4 17 57 40.5 71 200 28 25 29 56 26 6 14 25 24 40 26 11 32 -0.34 -146 0 0 25 23 11 17 57 44.0 71 203 29 25 5 2 25 41 22 24 59 45 25 46 40 -0.34 -145 0 0 24 58 5 17 57 47.6 71 206 30 24 39 55 25 16 17 24 34 38 25 21 35 -0.34 -144 0 0 24 32 48 17 57 51.2 71 210 31 24 14 38 24 51 1 24 9 20 24 56 20 -0.34 -143 0 0 24 7 20 17 57 54.8 71 213 32 23 49 9 24 25 34 23 43 52 24 30 53 -0.34 -142 0 0 23 41 42 17 57 58.3 71 217 33 23 23 30 23 59 57 23 18 13 24 5 16 -0.34 -141 0 0 23 15 55 17 58 2.0 71 220 35 22 57 42 23 34 10 22 52 24 23 39 29 -0.34 -140 0 0 22 49 58 17 58 5.6 70 223 36 22 31 45 23 8 14 22 26 27 23 13 33 -0.34 -139 0 0 22 23 54 17 58 9.2 70 226 37 22 5 40 22 42 9 22 0 22 22 47 29 -0.34 -138 0 0 21 57 41 17 58 12.8 70 229 38 21 39 27 22 15 57 21 34 9 22 21 17 -0.34 -137 0 0 21 31 21 17 58 16.4 69 232 39 21 13 7 21 49 38 21 7 49 21 54 58 -0.34 -136 0 0 21 4 55 17 58 20.0 69 235 40 20 46 41 21 23 12 20 41 22 21 28 32 -0.34 -135 0 0 20 38 24 17 58 23.7 68 237 41 20 20 9 20 56 41 20 14 51 21 2 1 -0.34 -134 0 0 20 11 47 17 58 27.3 68 240 42 19 53 32 20 30 4 19 48 14 20 35 24 -0.34 -133 0 0 19 45 6 17 58 30.9 67 242 43 19 26 52 20 3 23 19 21 33 20 8 43 -0.34 -132 0 0 19 18 22 17 58 34.5 66 245 44 19 0 7 19 36 39 18 54 49 19 41 59 -0.34 -131 0 0 18 51 35 17 58 38.1 66 247 45 18 33 20 19 9 51 18 28 2 19 15 11 -0.34 -130 0 0 18 24 45 17 58 41.7 65 249 46 18 6 31 18 43 2 18 1 12 18 48 21 -0.34 -129 0 0 17 57 54 17 58 45.2 64 251 47 17 39 40 18 16 11 17 34 22 18 21 30 -0.34 -128 0 0 17 31 3 17 58 48.8 63 252 48 17 12 49 17 49 19 17 7 31 17 54 38 -0.34 -127 0 0 17 4 12 17 58 52.3 63 254 49 16 45 59 17 22 27 16 40 40 17 27 46 -0.34 -126 0 0 16 37 21 17 58 55.9 62 256 50 16 19 9 16 55 36 16 13 51 17 0 55 -0.34 -125 0 0 16 10 32 17 58 59.3 61 257 51 15 52 20 16 28 46 15 47 3 16 34 6 -0.34 -124 0 0 15 43 46 17 59 2.8 60 259 52 15 25 34 16 1 59 15 20 17 16 7 18 -0.34 -123 0 0 15 17 2 17 59 6.3 59 260 53 14 58 52 15 35 15 14 53 34 15 40 34 -0.34 -122 0 0 14 50 22 17 59 9.7 58 261 54 14 32 13 15 8 34 14 26 56 15 13 53 -0.34 -121 0 0 14 23 47 17 59 13.1 57 262 56 14 5 38 14 41 58 14 0 22 14 47 16 -0.34 -120 0 0 13 57 17 17 59 16.4 57 263 57 13 39 9 14 15 27 13 33 53 14 20 45 -0.34 -119 0 0 13 30 53 17 59 19.8 56 265 58 13 12 46 13 49 2 13 7 30 13 54 20 -0.34 -118 0 0 13 4 36 17 59 23.1 55 266 59 12 46 30 13 22 44 12 41 14 13 28 1 -0.34 -117 0 0 12 38 26 17 59 26.3 54 266 60 12 20 21 12 56 33 12 15 6 13 1 50 -0.34 -116 0 0 12 12 24 17 59 29.5 53 267 61 11 54 21 12 30 30 11 49 6 12 35 46 -0.34 -115 0 0 11 46 31 17 59 32.7 52 268 62 11 28 29 12 4 35 11 23 14 12 9 52 -0.34 -114 0 0 11 20 48 17 59 35.8 51 269 63 11 2 47 11 38 51 10 57 32 11 44 6 -0.34 -113 0 0 10 55 14 17 59 38.9 50 270 64 10 37 15 11 13 16 10 32 1 11 18 31 -0.34 -112 0 0 10 29 52 17 59 42.0 49 270 65 10 11 54 10 47 52 10 6 40 10 53 7 -0.34 -111 0 0 10 4 41 17 59 45.0 48 271 66 9 46 44 10 22 39 9 41 31 10 27 54 -0.34 -110 0 0 9 39 42 17 59 47.9 47 272 67 9 21 47 9 57 39 9 16 34 10 2 53 -0.34 -109 0 0 9 14 55 17 59 50.8 46 272 68 8 57 2 9 32 51 8 51 50 9 38 5 -0.34 -108 0 0 8 50 23 17 59 53.7 45 273 69 8 32 31 9 8 16 8 27 19 9 13 30 -0.34 -107 0 0 8 26 4 17 59 56.5 44 273 70 8 8 13 8 43 56 8 3 2 8 49 9 -0.34 -106 0 0 8 1 59 17 59 59.2 43 274 71 7 44 11 8 19 50 7 39 0 8 25 2 -0.34 -105 0 0 7 38 10 18 0 1.9 42 274 72 7 20 23 7 55 59 7 15 12 8 1 11 -0.35 -104 0 0 7 14 36 18 0 4.6 41 274 73 6 56 51 7 32 23 6 51 41 7 37 35 -0.35 -103 0 0 6 51 18 18 0 7.1 40 275 74 6 33 35 7 9 4 6 28 26 7 14 15 -0.35 -102 0 0 6 28 18 18 0 9.7 39 275 75 6 10 36 6 46 1 6 5 27 6 51 12 -0.35 -101 0 0 6 5 34 18 0 12.1 38 275 76 5 47 54 6 23 16 5 42 46 6 28 25 -0.35 -100 0 0 5 43 8 18 0 14.5 37 276 77 5 25 30 6 0 48 5 20 22 6 5 57 -0.35 - 99 0 0 5 21 0 18 0 16.9 36 276 77 5 3 24 5 38 38 4 58 16 5 43 47 -0.35 - 98 0 0 4 59 11 18 0 19.1 34 276 78 4 41 36 5 16 47 4 36 29 5 21 55 -0.35 - 97 0 0 4 37 40 18 0 21.4 33 277 79 4 20 8 4 55 15 4 15 1 5 0 23 -0.35 - 96 0 0 4 16 30 18 0 23.5 32 277 79 3 58 59 4 34 2 3 53 53 4 39 9 -0.35 - 95 0 0 3 55 39 18 0 25.6 31 277 80 3 38 10 4 13 9 3 33 4 4 18 16 -0.35 - 94 0 0 3 35 8 18 0 27.6 30 277 81 3 17 41 3 52 37 3 12 36 3 57 43 -0.35 - 93 0 0 3 14 58 18 0 29.6 29 277 81 2 57 33 3 32 25 2 52 28 3 37 30 -0.35 - 92 0 0 2 55 9 18 0 31.5 28 278 81 2 37 45 3 12 34 2 32 42 3 17 39 -0.35 - 91 0 0 2 35 41 18 0 33.3 27 278 81 2 18 19 2 53 4 2 13 16 2 58 9 -0.35 - 90 0 0 2 16 35 18 0 35.1 26 278 81 1 59 15 2 33 56 1 54 13 2 39 0 -0.35 - 89 0 0 1 57 51 18 0 36.8 25 278 81 1 40 33 2 15 10 1 35 31 2 20 14 -0.35 - 88 0 0 1 39 29 18 0 38.4 24 278 81 1 22 13 1 56 47 1 17 11 2 1 49 -0.35 - 87 0 0 1 21 29 18 0 40.0 23 278 80 1 4 15 1 38 46 0 59 14 1 43 48 -0.35 - 86 0 0 1 3 53 18 0 41.4 22 278 80 0 46 41 1 21 7 0 41 40 1 26 9 -0.35 - 85 0 0 0 46 39 18 0 42.9 21 278 79 0 29 29 1 3 52 0 24 29 1 8 53 -0.35 - 84 0 0 0 29 49 18 0 44.2 20 278 79 0 12 40 0 47 0 0 7 41 0 52 1 -0.35 - 83 0 0 0 13 23 18 0 45.5 19 278 78 - 0 3 44 0 30 32 - 0 8 43 0 35 32 -0.35 - 82 0 0 - 0 2 40 18 0 46.7 18 278 77 - 0 19 46 0 14 27 - 0 24 44 0 19 27 -0.35 - 81 0 0 - 0 18 19 18 0 47.9 17 278 77 - 0 35 23 - 0 1 13 - 0 40 21 0 3 46 -0.35 - 80 0 0 - 0 33 34 18 0 49.0 16 278 76 - 0 50 36 - 0 16 30 - 0 55 33 - 0 11 31 -0.36 - 79 0 0 - 0 48 24 18 0 50.0 15 279 75 - 1 5 25 - 0 31 22 - 1 10 22 - 0 26 24 -0.36 - 78 0 0 - 1 2 50 18 0 50.9 14 279 74 - 1 19 49 - 0 45 50 - 1 24 46 - 0 40 52 -0.36 - 77 0 0 - 1 16 51 18 0 51.8 13 279 73 - 1 33 49 - 0 59 52 - 1 38 45 - 0 54 55 -0.36 - 76 0 0 - 1 30 28 18 0 52.6 12 278 72 - 1 47 23 - 1 13 30 - 1 52 19 - 1 8 33 -0.36 - 75 0 0 - 1 43 39 18 0 53.3 11 278 71 - 2 0 33 - 1 26 43 - 2 5 29 - 1 21 47 -0.36 - 74 0 0 - 1 56 25 18 0 54.0 10 278 70 - 2 13 18 - 1 39 31 - 2 18 13 - 1 34 35 -0.36 - 73 0 0 - 2 8 47 18 0 54.6 9 278 69 - 2 25 38 - 1 51 53 - 2 30 32 - 1 46 58 -0.37 - 72 0 0 - 2 20 42 18 0 55.2 8 278 68 - 2 37 32 - 2 3 51 - 2 42 26 - 1 58 55 -0.37 - 71 0 0 - 2 32 13 18 0 55.6 7 278 67 - 2 49 1 - 2 15 22 - 2 53 55 - 2 10 27 -0.37 - 70 0 0 - 2 43 17 18 0 56.0 6 278 67 - 3 0 5 - 2 26 28 - 3 4 58 - 2 21 34 -0.38 - 69 0 0 - 2 53 57 18 0 56.4 5 278 66 - 3 10 43 - 2 37 9 - 3 15 36 - 2 32 15 -0.39 - 68 0 0 - 3 4 10 18 0 56.6 4 278 65 - 3 20 55 - 2 47 23 - 3 25 48 - 2 42 30 -0.40 - 67 0 0 - 3 13 58 18 0 56.8 3 278 64 - 3 30 42 - 2 57 12 - 3 35 34 - 2 52 19 -0.43 - 66 0 0 - 3 23 20 18 0 57.0 2 278 63 - 3 40 2 - 3 6 35 - 3 44 54 - 3 1 42 -0.49 - 65 0 0 - 3 32 16 18 0 57.0 1 278 62 - 3 48 57 - 3 15 32 - 3 53 49 - 3 10 40 -0.78 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 491-051976 * constellation : Cancer * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 51 09.1737 DE: +08 06 05.182 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 51 09.1738 DE: +08 06 05.181 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.4 * B mag [mag]: 11.7 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1309) Hyperborea asteroid class: approx. diameter [km]: 58 approx. diameter ["]: 0.026 distance from Earth [AU]: 3.09690 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#73 date of fit: 2023 Apr 27 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", 0.002", 103.518° remarks: * orbital elements for (1309)Hyperborea : Mean anomaly = 18.5727074737 deg Arg. of pericenter = 243.1714581577 deg Long. of node = 205.9798247400 deg Inclination = 10.2789310354 deg Eccentricity = 0.1465090153 Semimajor axis = 3.2102352066 AU Perihelion dist = 2.7399068076 AU Mag: H = 10.43, G = 0.15 Epoch of elements : MJD 60590.74844245 TDT (2024 Oct 07.7484) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#732023Apr27,1.83,2024,10,7,17.962632,0.119666,0.294286,16.507621,-6.717796,-0.005013,0.000988,-0.000001,0.000000 -153.1933,8.0111,-92.53,-5.89,False UCAC4 491-051976,8.85254821,8.1014395,11.73,11.42,11.25,0.0,0,,8.87446814,8.0111163,4.65,4.37,0,0,0 1309,Hyperborea,16.05,57.760,3.0969,0,0,3.156,-19.08,,3.0,0 0,18.4445,2024,10,7,243.1715,205.9798,10.2789,0.14651,3.21024,2.73991,10.43,5.0,0.15 1.146,0.0220,0.0018,104,0.0038,Known errors,0.95,0,-1,-1 20241007_051976,60140.62 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 14:49 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org