IOTA/IOTA-ES occultation update for (3631) Sigyn / UCAC4 489-048964 event on 2024 Dec 13, 14:09 UT Visible from Summary ------- On 2024 Dec 13 UT, the 39.461 km diameter asteroid (3631) Sigyn will occult a 11.3 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 5.45 mag to 16.72 mag (the magnitude of the asteroid) for at most 8.500 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 Dec 13, 13:53 - 2024 Dec 13, 14:26 * geocentric midpoint of event [JD]: 2460658.09006737 * magnitude of target star: 11.28 * magnitude drop [mag]: 5.45 * estimated maximum duration [s]: 8.500 * Moon: 96 % sunlit, 75° distance * Sun: 129° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 57 * 1 sigma uncertainty interval [path widths]: +/- 0.21 * 1 sigma uncertainty interval [seconds]: +/- 7.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.017, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.017", 0.002", 92°) * approx speed of asteroid's shadow [km/s]: 4.6443 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 489-048964 by 3631 Sigyn on 2024 Dec 13 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 108 0 0 -30 15 17 14 25 33.6 0 81 -27 -29 59 34 -30 31 5 -29 52 55 -30 37 48 .... 109 0 0 -30 7 26 14 25 33.3 1 80 -28 -29 51 44 -30 23 12 -29 45 6 -30 29 55 0.58 110 0 0 -29 59 57 14 25 32.5 2 80 -29 -29 44 17 -30 15 42 -29 37 39 -30 22 25 0.79 111 0 0 -29 52 52 14 25 31.2 3 79 -29 -29 37 13 -30 8 36 -29 30 36 -30 15 17 0.87 112 0 0 -29 46 10 14 25 29.5 4 79 -30 -29 30 32 -30 1 52 -29 23 56 -30 8 33 0.91 113 0 0 -29 39 51 14 25 27.3 5 79 -30 -29 24 15 -29 55 32 -29 17 39 -30 2 13 0.94 114 0 0 -29 33 55 14 25 24.7 5 78 -31 -29 18 20 -29 49 35 -29 11 44 -29 56 15 0.96 115 0 0 -29 28 22 14 25 21.7 6 78 -31 -29 12 48 -29 44 1 -29 6 13 -29 50 40 0.97 116 0 0 -29 23 12 14 25 18.2 7 77 -32 -29 7 39 -29 38 50 -29 1 4 -29 45 29 0.98 117 0 0 -29 18 25 14 25 14.3 8 77 -32 -29 2 53 -29 34 2 -28 56 19 -29 40 40 0.99 118 0 0 -29 14 1 14 25 9.9 9 76 -33 -28 58 30 -29 29 37 -28 51 57 -29 36 15 0.99 119 0 0 -29 10 0 14 25 5.1 10 76 -33 -28 54 30 -29 25 35 -28 47 57 -29 32 12 1.00 120 0 0 -29 6 22 14 24 59.9 11 75 -34 -28 50 53 -29 21 56 -28 44 20 -29 28 33 1.00 121 0 0 -29 3 7 14 24 54.3 11 75 -34 -28 47 39 -29 18 40 -28 41 6 -29 25 17 1.00 122 0 0 -29 0 14 14 24 48.2 12 74 -34 -28 44 47 -29 15 46 -28 38 15 -29 22 23 1.01 123 0 0 -28 57 45 14 24 41.8 13 74 -35 -28 42 18 -29 13 16 -28 35 46 -29 19 52 1.01 124 0 0 -28 55 37 14 24 35.0 14 73 -35 -28 40 11 -29 11 8 -28 33 40 -29 17 44 1.01 125 0 0 -28 53 53 14 24 27.7 15 72 -35 -28 38 27 -29 9 23 -28 31 56 -29 15 58 1.01 126 0 0 -28 52 30 14 24 20.1 16 72 -36 -28 37 6 -29 8 0 -28 30 34 -29 14 35 1.01 127 0 0 -28 51 31 14 24 12.0 16 71 -36 -28 36 6 -29 6 59 -28 29 35 -29 13 35 1.01 128 0 0 -28 50 53 14 24 3.6 17 71 -36 -28 35 29 -29 6 21 -28 28 58 -29 12 57 1.01 129 0 0 -28 50 38 14 23 54.8 18 70 -36 -28 35 14 -29 6 6 -28 28 43 -29 12 41 1.01 130 0 0 -28 50 44 14 23 45.7 19 70 -37 -28 35 21 -29 6 12 -28 28 51 -29 12 47 1.01 131 0 0 -28 51 13 14 23 36.2 20 69 -37 -28 35 50 -29 6 40 -28 29 19 -29 13 15 1.02 132 0 0 -28 52 3 14 23 26.3 20 69 -37 -28 36 40 -29 7 30 -28 30 10 -29 14 5 1.02 133 0 0 -28 53 15 14 23 16.1 21 68 -37 -28 37 53 -29 8 42 -28 31 22 -29 15 16 1.02 134 0 0 -28 54 49 14 23 5.5 22 67 -37 -28 39 27 -29 10 16 -28 32 56 -29 16 50 1.02 135 0 0 -28 56 44 14 22 54.6 23 67 -37 -28 41 22 -29 12 11 -28 34 52 -29 18 45 1.02 136 0 0 -28 59 1 14 22 43.3 23 66 -38 -28 43 38 -29 14 27 -28 37 8 -29 21 2 1.02 137 0 0 -29 1 39 14 22 31.7 24 66 -38 -28 46 16 -29 17 5 -28 39 46 -29 23 40 1.02 138 0 0 -29 4 37 14 22 19.8 25 65 -38 -28 49 15 -29 20 4 -28 42 45 -29 26 39 1.02 139 0 0 -29 7 57 14 22 7.6 26 64 -38 -28 52 35 -29 23 24 -28 46 5 -29 29 59 1.02 140 0 0 -29 11 38 14 21 55.1 26 64 -38 -28 56 15 -29 27 5 -28 49 45 -29 33 40 1.02 141 0 0 -29 15 39 14 21 42.3 27 63 -38 -29 0 16 -29 31 7 -28 53 46 -29 37 41 1.02 142 0 0 -29 20 1 14 21 29.1 28 62 -38 -29 4 38 -29 35 29 -28 58 8 -29 42 4 1.02 143 0 0 -29 24 43 14 21 15.7 28 62 -38 -29 9 20 -29 40 11 -29 2 49 -29 46 46 1.02 144 0 0 -29 29 46 14 21 2.0 29 61 -37 -29 14 22 -29 45 14 -29 7 51 -29 51 49 1.02 145 0 0 -29 35 8 14 20 48.1 30 60 -37 -29 19 44 -29 50 37 -29 13 13 -29 57 12 1.02 146 0 0 -29 40 51 14 20 33.8 30 59 -37 -29 25 26 -29 56 20 -29 18 55 -30 2 56 1.02 147 0 0 -29 46 53 14 20 19.3 31 59 -37 -29 31 28 -30 2 23 -29 24 56 -30 8 58 1.02 148 0 0 -29 53 15 14 20 4.6 32 58 -37 -29 37 49 -30 8 45 -29 31 17 -30 15 21 1.02 149 0 0 -29 59 56 14 19 49.6 32 57 -37 -29 44 29 -30 15 27 -29 37 58 -30 22 3 1.02 150 0 0 -30 6 56 14 19 34.3 33 56 -36 -29 51 29 -30 22 28 -29 44 57 -30 29 4 1.02 151 0 0 -30 14 16 14 19 18.8 33 55 -36 -29 58 48 -30 29 48 -29 52 15 -30 36 25 1.02 152 0 0 -30 21 54 14 19 3.1 34 55 -36 -30 6 25 -30 37 27 -29 59 53 -30 44 4 1.02 153 0 0 -30 29 51 14 18 47.2 35 54 -36 -30 14 21 -30 45 25 -30 7 48 -30 52 2 1.02 154 0 0 -30 38 6 14 18 31.1 35 53 -35 -30 22 36 -30 53 41 -30 16 3 -31 0 19 1.02 155 0 0 -30 46 40 14 18 14.8 36 52 -35 -30 31 9 -31 2 16 -30 24 35 -31 8 54 1.02 156 0 0 -30 55 32 14 17 58.2 36 51 -35 -30 40 0 -31 11 8 -30 33 26 -31 17 47 1.02 157 0 0 -31 4 42 14 17 41.5 37 50 -34 -30 49 9 -31 20 19 -30 42 34 -31 26 58 1.02 158 0 0 -31 14 9 14 17 24.6 37 49 -34 -30 58 35 -31 29 48 -30 52 0 -31 36 27 1.02 159 0 0 -31 23 54 14 17 7.6 38 48 -34 -31 8 19 -31 39 34 -31 1 44 -31 46 14 1.02 160 0 0 -31 33 56 14 16 50.3 38 47 -33 -31 18 20 -31 49 37 -31 11 44 -31 56 17 1.02 161 0 0 -31 44 16 14 16 32.9 39 46 -33 -31 28 38 -31 59 57 -31 22 2 -32 6 38 1.02 162 0 0 -31 54 52 14 16 15.4 39 45 -33 -31 39 13 -32 10 35 -31 32 37 -32 17 16 1.02 163 0 0 -32 5 45 14 15 57.7 40 44 -32 -31 50 5 -32 21 29 -31 43 28 -32 28 11 1.02 164 0 0 -32 16 54 14 15 39.9 40 43 -32 -32 1 13 -32 32 39 -31 54 35 -32 39 22 1.02 165 0 0 -32 28 19 14 15 22.0 40 42 -31 -32 12 37 -32 44 6 -32 5 59 -32 50 49 1.02 166 0 0 -32 40 1 14 15 3.9 41 41 -31 -32 24 17 -32 55 48 -32 17 38 -33 2 32 1.03 167 0 0 -32 51 58 14 14 45.7 41 40 -30 -32 36 13 -33 7 47 -32 29 33 -33 14 31 1.03 168 0 0 -33 4 10 14 14 27.5 41 38 -30 -32 48 24 -33 20 1 -32 41 44 -33 26 46 1.03 169 0 0 -33 16 38 14 14 9.1 42 37 -29 -33 0 50 -33 32 30 -32 54 10 -33 39 15 1.03 170 0 0 -33 29 21 14 13 50.6 42 36 -29 -33 13 32 -33 45 14 -33 6 51 -33 52 0 1.03 171 0 0 -33 42 18 14 13 32.1 42 35 -28 -33 26 28 -33 58 13 -33 19 46 -34 5 0 1.03 172 0 0 -33 55 30 14 13 13.5 43 34 -28 -33 39 38 -34 11 27 -33 32 56 -34 18 14 1.03 173 0 0 -34 8 56 14 12 54.9 43 32 -27 -33 53 3 -34 24 54 -33 46 20 -34 31 42 1.03 174 0 0 -34 22 36 14 12 36.1 43 31 -26 -34 6 42 -34 38 36 -33 59 58 -34 45 25 1.03 175 0 0 -34 36 30 14 12 17.4 43 30 -26 -34 20 34 -34 52 31 -34 13 50 -34 59 21 1.03 176 0 0 -34 50 37 14 11 58.6 43 29 -25 -34 34 40 -35 6 40 -34 27 55 -35 13 30 1.03 177 0 0 -35 4 58 14 11 39.8 43 27 -25 -34 48 58 -35 21 2 -34 42 13 -35 27 53 1.03 178 0 0 -35 19 31 14 11 20.9 44 26 -24 -35 3 30 -35 35 37 -34 56 44 -35 42 29 1.03 179 0 0 -35 34 17 14 11 2.1 44 25 -24 -35 18 14 -35 50 25 -35 11 27 -35 57 17 1.04 -180 0 0 -35 49 15 14 10 43.2 44 24 -23 -35 33 11 -36 5 25 -35 26 23 -36 12 17 1.04 -179 0 0 -36 4 25 14 10 24.3 44 22 -22 -35 48 19 -36 20 36 -35 41 31 -36 27 30 1.04 -178 0 0 -36 19 47 14 10 5.5 44 21 -22 -36 3 39 -36 36 0 -35 56 50 -36 42 54 1.04 -177 0 0 -36 35 20 14 9 46.7 44 20 -21 -36 19 10 -36 51 34 -36 12 20 -36 58 29 1.04 -176 0 0 -36 51 4 14 9 27.9 44 18 -20 -36 34 53 -37 7 20 -36 28 2 -37 14 16 1.04 -175 0 0 -37 6 58 14 9 9.1 44 17 -20 -36 50 46 -37 23 16 -36 43 54 -37 30 13 1.04 -174 0 0 -37 23 4 14 8 50.4 44 16 -19 -37 6 49 -37 39 23 -36 59 57 -37 46 20 1.04 -173 0 0 -37 39 19 14 8 31.7 44 15 -18 -37 23 2 -37 55 40 -37 16 10 -38 2 38 1.04 -172 0 0 -37 55 44 14 8 13.1 44 13 -18 -37 39 26 -38 12 7 -37 32 32 -38 19 6 1.04 -171 0 0 -38 12 18 14 7 54.6 44 12 -17 -37 55 58 -38 28 43 -37 49 4 -38 35 42 1.04 -170 0 0 -38 29 1 14 7 36.1 43 11 -16 -38 12 40 -38 45 28 -38 5 45 -38 52 28 1.05 -169 0 0 -38 45 53 14 7 17.7 43 9 -16 -38 29 30 -39 2 22 -38 22 34 -39 9 23 1.05 -168 0 0 -39 2 53 14 6 59.4 43 8 -15 -38 46 28 -39 19 24 -38 39 32 -39 26 25 1.05 -167 0 0 -39 20 2 14 6 41.2 43 7 -14 -39 3 35 -39 36 34 -38 56 38 -39 43 36 1.05 -166 0 0 -39 37 18 14 6 23.1 43 5 -14 -39 20 49 -39 53 51 -39 13 51 -40 0 54 1.05 -165 0 0 -39 54 41 14 6 5.2 42 4 -13 -39 38 11 -40 11 16 -39 31 12 -40 18 20 1.05 -164 0 0 -40 12 11 14 5 47.3 42 3 -12 -39 55 39 -40 28 48 -39 48 40 -40 35 53 1.05 -163 0 0 -40 29 47 14 5 29.6 42 2 -11 -40 13 14 -40 46 26 -40 6 14 -40 53 32 1.05 -162 0 0 -40 47 30 14 5 12.0 42 0 -11 -40 30 55 -41 4 11 -40 23 54 -41 11 17 1.05 -161 0 0 -41 5 18 14 4 54.6 41 359 -10 -40 48 42 -41 22 1 -40 41 41 -41 29 8 1.05 -160 0 0 -41 23 12 14 4 37.3 41 358 -9 -41 6 34 -41 39 56 -40 59 32 -41 47 4 1.05 -159 0 0 -41 41 11 14 4 20.1 41 357 -9 -41 24 31 -41 57 56 -41 17 29 -42 5 5 1.06 -158 0 0 -41 59 14 14 4 3.1 40 356 -8 -41 42 33 -42 16 1 -41 35 30 -42 23 10 1.06 -157 0 0 -42 17 22 14 3 46.3 40 354 -7 -42 0 39 -42 34 11 -41 53 35 -42 41 20 1.06 -156 0 0 -42 35 33 14 3 29.7 40 353 -6 -42 18 49 -42 52 23 -42 11 44 -42 59 34 1.06 -155 0 0 -42 53 48 14 3 13.2 39 352 -6 -42 37 2 -43 10 40 -42 29 57 -43 17 51 1.06 -154 0 0 -43 12 6 14 2 57.0 39 351 -5 -42 55 18 -43 28 59 -42 48 13 -43 36 11 1.06 -153 0 0 -43 30 26 14 2 40.9 38 350 -4 -43 13 37 -43 47 21 -43 6 31 -43 54 33 1.06 -152 0 0 -43 48 49 14 2 25.0 38 349 -3 -43 31 59 -44 5 45 -43 24 52 -44 12 57 1.06 -151 0 0 -44 7 13 14 2 9.3 38 348 -3 -43 50 22 -44 24 10 -43 43 14 -44 31 24 1.06 -150 0 0 -44 25 39 14 1 53.9 37 346 -2 -44 8 46 -44 42 37 -44 1 38 -44 49 51 1.06 -149 0 0 -44 44 5 14 1 38.6 37 345 -1 -44 27 11 -45 1 5 -44 20 3 -45 8 20 1.06 -148 0 0 -45 2 33 14 1 23.6 36 344 -1 -44 45 37 -45 19 34 -44 38 28 -45 26 49 1.07 -147 0 0 -45 21 0 14 1 8.8 36 343 0 -45 4 3 -45 38 2 -44 56 54 -45 45 18 1.07 -146 0 0 -45 39 27 14 0 54.2 35 342 1 -45 22 29 -45 56 30 -45 15 19 -46 3 46 1.07 -145 0 0 -45 57 53 14 0 39.8 35 341 2 -45 40 55 -46 14 58 -45 33 44 -46 22 14 1.07 -144 0 0 -46 16 19 14 0 25.7 34 340 2 -45 59 19 -46 33 24 -45 52 8 -46 40 41 1.07 -143 0 0 -46 34 42 14 0 11.8 34 339 3 -46 17 42 -46 51 49 -46 10 31 -46 59 6 1.07 -142 0 0 -46 53 4 13 59 58.2 33 338 4 -46 36 3 -47 10 11 -46 28 51 -47 17 29 1.07 -141 0 0 -47 11 24 13 59 44.8 33 337 4 -46 54 22 -47 28 32 -46 47 10 -47 35 50 1.07 -140 0 0 -47 29 41 13 59 31.6 32 336 5 -47 12 38 -47 46 50 -47 5 26 -47 54 8 1.07 -139 0 0 -47 47 55 13 59 18.7 32 335 6 -47 30 51 -48 5 4 -47 23 38 -48 12 23 1.07 -138 0 0 -48 6 5 13 59 6.1 31 334 7 -47 49 1 -48 23 15 -47 41 48 -48 30 34 1.07 -137 0 0 -48 24 11 13 58 53.7 30 333 7 -48 7 7 -48 41 22 -47 59 54 -48 48 41 1.07 -136 0 0 -48 42 13 13 58 41.6 30 332 8 -48 25 8 -48 59 25 -48 17 55 -49 6 44 1.07 -135 0 0 -49 0 11 13 58 29.7 29 331 9 -48 43 5 -49 17 23 -48 35 52 -49 24 42 1.07 -134 0 0 -49 18 4 13 58 18.1 29 330 9 -49 0 58 -49 35 15 -48 53 44 -49 42 35 1.07 -133 0 0 -49 35 51 13 58 6.7 28 329 10 -49 18 44 -49 53 3 -49 11 31 -50 0 23 1.07 -132 0 0 -49 53 32 13 57 55.7 28 328 11 -49 36 26 -50 10 44 -49 29 12 -50 18 4 1.08 -131 0 0 -50 11 7 13 57 44.8 27 328 11 -49 54 1 -50 28 20 -49 46 47 -50 35 40 1.08 -130 0 0 -50 28 36 13 57 34.3 27 327 12 -50 11 29 -50 45 49 -50 4 16 -50 53 9 1.08 -129 0 0 -50 45 58 13 57 24.0 26 326 13 -50 28 51 -51 3 11 -50 21 38 -51 10 31 1.08 -128 0 0 -51 3 13 13 57 14.0 25 325 13 -50 46 6 -51 20 26 -50 38 53 -51 27 45 1.08 -127 0 0 -51 20 20 13 57 4.2 25 324 14 -51 3 14 -51 37 33 -50 56 0 -51 44 53 1.08 -126 0 0 -51 37 20 13 56 54.7 24 323 15 -51 20 14 -51 54 32 -51 13 0 -52 1 52 1.08 -125 0 0 -51 54 12 13 56 45.5 24 322 15 -51 37 6 -52 11 23 -51 29 52 -52 18 43 1.08 -124 0 0 -52 10 55 13 56 36.5 23 321 16 -51 53 49 -52 28 6 -51 46 36 -52 35 26 1.08 -123 0 0 -52 27 29 13 56 27.8 22 320 17 -52 10 24 -52 44 40 -52 3 11 -52 51 59 1.08 -122 0 0 -52 43 55 13 56 19.4 22 319 17 -52 26 50 -53 1 5 -52 19 37 -53 8 24 1.08 -121 0 0 -53 0 11 13 56 11.2 21 319 18 -52 43 7 -53 17 21 -52 35 54 -53 24 39 1.08 -120 0 0 -53 16 17 13 56 3.3 21 318 19 -52 59 14 -53 33 27 -52 52 2 -53 40 45 1.08 -119 0 0 -53 32 14 13 55 55.7 20 317 19 -53 15 12 -53 49 23 -53 7 59 -53 56 41 1.08 -118 0 0 -53 48 1 13 55 48.3 19 316 20 -53 30 59 -54 5 9 -53 23 47 -54 12 27 1.08 -117 0 0 -54 3 38 13 55 41.1 19 315 20 -53 46 37 -54 20 45 -53 39 25 -54 28 2 1.08 -116 0 0 -54 19 4 13 55 34.3 18 314 21 -54 2 4 -54 36 10 -53 54 53 -54 43 27 1.08 -115 0 0 -54 34 19 13 55 27.6 18 313 22 -54 17 20 -54 51 24 -54 10 9 -54 58 41 1.08 -114 0 0 -54 49 23 13 55 21.2 17 313 22 -54 32 25 -55 6 27 -54 25 15 -55 13 43 1.08 -113 0 0 -55 4 17 13 55 15.1 17 312 23 -54 47 20 -55 21 19 -54 40 10 -55 28 35 1.08 -112 0 0 -55 18 59 13 55 9.2 16 311 23 -55 2 3 -55 36 0 -54 54 53 -55 43 15 1.08 -111 0 0 -55 33 29 13 55 3.6 15 310 24 -55 16 34 -55 50 29 -55 9 26 -55 57 44 1.08 -110 0 0 -55 47 48 13 54 58.1 15 309 25 -55 30 54 -56 4 47 -55 23 46 -56 12 1 1.08 -109 0 0 -56 1 54 13 54 53.0 14 308 25 -55 45 3 -56 18 52 -55 37 55 -56 26 6 1.08 -108 0 0 -56 15 49 13 54 48.0 14 307 26 -55 58 59 -56 32 45 -55 51 52 -56 39 58 1.08 -107 0 0 -56 29 32 13 54 43.3 13 307 26 -56 12 43 -56 46 27 -56 5 36 -56 53 39 1.08 -106 0 0 -56 43 2 13 54 38.8 13 306 27 -56 26 15 -56 59 56 -56 19 9 -57 7 7 1.08 -105 0 0 -56 56 20 13 54 34.6 12 305 27 -56 39 34 -57 13 12 -56 32 29 -57 20 23 1.08 -104 0 0 -57 9 26 13 54 30.5 11 304 28 -56 52 41 -57 26 16 -56 45 37 -57 33 26 1.08 -103 0 0 -57 22 19 13 54 26.7 11 303 28 -57 5 36 -57 39 7 -56 58 32 -57 46 17 1.08 -102 0 0 -57 34 59 13 54 23.1 10 302 29 -57 18 17 -57 51 46 -57 11 14 -57 58 54 1.08 -101 0 0 -57 47 26 13 54 19.7 10 301 29 -57 30 46 -58 4 11 -57 23 44 -58 11 19 1.08 -100 0 0 -57 59 41 13 54 16.5 9 301 30 -57 43 3 -58 16 24 -57 36 1 -58 23 31 1.08 - 99 0 0 -58 11 42 13 54 13.5 9 300 30 -57 55 6 -58 28 24 -57 48 5 -58 35 30 1.09 - 98 0 0 -58 23 30 13 54 10.7 8 299 31 -58 6 56 -58 40 10 -57 59 55 -58 47 16 1.09 - 97 0 0 -58 35 6 13 54 8.2 8 298 31 -58 18 33 -58 51 44 -58 11 33 -58 58 49 1.09 - 96 0 0 -58 46 28 13 54 5.8 7 297 32 -58 29 57 -59 3 4 -58 22 58 -59 10 8 1.09 - 95 0 0 -58 57 37 13 54 3.6 6 296 32 -58 41 8 -59 14 11 -58 34 10 -59 21 14 1.09 - 94 0 0 -59 8 32 13 54 1.6 6 296 33 -58 52 5 -59 25 5 -58 45 8 -59 32 7 1.09 - 93 0 0 -59 19 15 13 53 59.8 5 295 33 -59 2 50 -59 35 45 -58 55 53 -59 42 47 1.09 - 92 0 0 -59 29 44 13 53 58.2 5 294 34 -59 13 21 -59 46 13 -59 6 25 -59 53 14 1.10 - 91 0 0 -59 40 0 13 53 56.7 4 293 34 -59 23 38 -59 56 27 -59 16 43 -60 3 27 1.10 - 90 0 0 -59 50 2 13 53 55.4 4 292 35 -59 33 43 -60 6 27 -59 26 49 -60 13 27 1.11 - 89 0 0 -59 59 52 13 53 54.3 3 291 35 -59 43 34 -60 16 14 -59 36 40 -60 23 13 1.11 - 88 0 0 -60 9 27 13 53 53.4 3 290 36 -59 53 12 -60 25 48 -59 46 19 -60 32 46 1.12 - 87 0 0 -60 18 50 13 53 52.7 2 290 36 -60 2 36 -60 35 9 -59 55 44 -60 42 6 1.13 - 86 0 0 -60 27 59 13 53 52.1 2 289 36 -60 11 47 -60 44 16 -60 4 56 -60 51 12 1.16 - 85 0 0 -60 36 55 13 53 51.7 1 288 37 -60 20 45 -60 53 10 -60 13 54 -61 0 5 1.20 - 84 0 0 -60 45 37 13 53 51.4 1 287 37 -60 29 29 -61 1 51 -60 22 40 -61 8 45 1.31 - 83 0 0 -60 54 7 13 53 51.3 0 286 38 -60 38 0 -61 10 18 -60 31 11 -61 17 12 2.29 Uncertainty in time = +/- 7 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 489-048964 * constellation : Cancer * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 48 11.9889 DE: +07 45 33.955 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 48 11.9890 DE: +07 45 33.955 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.3 * B mag [mag]: 11.7 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3631) Sigyn asteroid class: approx. diameter [km]: 39 approx. diameter ["]: 0.021 distance from Earth [AU]: 2.63750 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#53 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): 0.017", 0.002", 92.44° remarks: * orbital elements for (3631)Sigyn : Mean anomaly = 167.0964694944 deg Arg. of pericenter = 158.6228847722 deg Long. of node = 150.5936400888 deg Inclination = 14.4084825751 deg Eccentricity = 0.0824394300 Semimajor axis = 3.0932470023 AU Perihelion dist = 2.8382414827 AU Mag: H = 11.22, G = 0.15 Epoch of elements : MJD 60657.59007067 TDT (2024 Dec 13.5901) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#532023Apr27,8.50,2024,12,13,14.161617,-0.193661,-0.692420,-2.524885,0.704572,-0.004295,0.001884,0.000001,0.000000 -162.7905,7.6677,-33.81,-23.20,False UCAC4 489-048964,8.80333024,7.7594322,11.65,11.28,11.08,0.0,0,,8.82581388,7.6676617,5.45,5.20,0,0,0 3631,Sigyn,16.72,39.461,2.6375,0,0,-0.566,2.35,,2.0,0 0,166.9896,2024,12,13,158.6229,150.5936,14.4085,0.08244,3.09325,2.83824,11.22,5.0,0.15 1.212,0.0173,0.0020,92,0.0044,Known errors,1.18,0,-1,-1 20241213_048964,60140.74 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:43 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org