IOTA/IOTA-ES occultation update for (3631) Sigyn / UCAC4 490-049830 event on 2024 Dec 19, 10:25 UT Visible from Summary ------- On 2024 Dec 19 UT, the 39.452 km diameter asteroid (3631) Sigyn will occult a 11.1 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 5.49 mag to 16.62 mag (the magnitude of the asteroid) for at most 5.640 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 19, 10:13 - 2024 Dec 19, 10:36 * geocentric midpoint of event [JD]: 2460663.93406266 * magnitude of target star: 11.14 * magnitude drop [mag]: 5.49 * estimated maximum duration [s]: 5.640 * Moon: 82 % sunlit, 14° distance * Sun: 135° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 53 * 1 sigma uncertainty interval [path widths]: +/- 0.25 * 1 sigma uncertainty interval [seconds]: +/- 4.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.002", 93°) * approx speed of asteroid's shadow [km/s]: 6.9997 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 490-049830 by 3631 Sigyn on 2024 Dec 19 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 141 0 0 60 15 12 10 36 11.9 0 75 -35 60 30 10 60 0 19 60 37 42 59 52 52 .... 142 0 0 60 23 26 10 36 11.8 1 75 -36 60 38 23 60 8 34 60 45 53 60 1 8 -0.71 143 0 0 60 31 25 10 36 11.6 1 76 -36 60 46 19 60 16 34 60 53 49 60 9 9 -0.79 144 0 0 60 39 8 10 36 11.3 2 77 -37 60 54 1 60 24 19 61 1 30 60 16 54 -0.83 145 0 0 60 46 36 10 36 10.9 2 78 -37 61 1 28 60 31 48 61 8 56 60 24 24 -0.85 146 0 0 60 53 49 10 36 10.4 3 79 -37 61 8 39 60 39 2 61 16 6 60 31 39 -0.86 147 0 0 61 0 47 10 36 9.9 3 80 -38 61 15 35 60 46 2 61 23 2 60 38 39 -0.86 148 0 0 61 7 29 10 36 9.2 4 81 -38 61 22 17 60 52 46 61 29 43 60 45 24 -0.87 149 0 0 61 13 58 10 36 8.5 4 82 -39 61 28 44 60 59 15 61 36 9 60 51 54 -0.88 150 0 0 61 20 11 10 36 7.6 5 82 -39 61 34 56 61 5 30 61 42 21 60 58 9 -0.88 151 0 0 61 26 10 10 36 6.7 5 83 -39 61 40 53 61 11 30 61 48 17 61 4 10 -0.88 152 0 0 61 31 54 10 36 5.7 6 84 -40 61 46 36 61 17 15 61 54 0 61 9 56 -0.88 153 0 0 61 37 24 10 36 4.6 6 85 -40 61 52 5 61 22 46 61 59 28 61 15 27 -0.89 154 0 0 61 42 39 10 36 3.5 7 86 -41 61 57 19 61 28 3 62 4 42 61 20 45 -0.89 155 0 0 61 47 41 10 36 2.2 7 87 -41 62 2 20 61 33 5 62 9 42 61 25 47 -0.89 156 0 0 61 52 28 10 36 0.9 8 88 -41 62 7 6 61 37 53 62 14 27 61 30 36 -0.89 157 0 0 61 57 1 10 35 59.5 8 89 -42 62 11 38 61 42 27 62 18 59 61 35 10 -0.89 158 0 0 62 1 20 10 35 58.0 9 89 -42 62 15 56 61 46 47 62 23 17 61 39 31 -0.89 159 0 0 62 5 25 10 35 56.5 9 90 -42 62 20 0 61 50 53 62 27 20 61 43 37 -0.90 160 0 0 62 9 16 10 35 54.8 9 91 -43 62 23 51 61 54 45 62 31 10 61 47 29 -0.90 161 0 0 62 12 54 10 35 53.1 10 92 -43 62 27 27 61 58 23 62 34 47 61 51 8 -0.90 162 0 0 62 16 17 10 35 51.3 10 93 -43 62 30 51 62 1 48 62 38 10 61 54 33 -0.90 163 0 0 62 19 28 10 35 49.5 11 94 -44 62 34 0 62 4 58 62 41 19 61 57 44 -0.90 164 0 0 62 22 24 10 35 47.5 11 95 -44 62 36 56 62 7 56 62 44 14 62 0 41 -0.90 165 0 0 62 25 7 10 35 45.5 12 96 -44 62 39 39 62 10 39 62 46 57 62 3 25 -0.90 166 0 0 62 27 37 10 35 43.5 12 97 -45 62 42 8 62 13 9 62 49 26 62 5 56 -0.90 167 0 0 62 29 53 10 35 41.3 13 97 -45 62 44 23 62 15 26 62 51 41 62 8 12 -0.90 168 0 0 62 31 56 10 35 39.1 13 98 -45 62 46 26 62 17 29 62 53 43 62 10 16 -0.90 169 0 0 62 33 45 10 35 36.8 14 99 -45 62 48 15 62 19 19 62 55 32 62 12 6 -0.90 170 0 0 62 35 21 10 35 34.5 14 100 -46 62 49 51 62 20 55 62 57 8 62 13 42 -0.90 171 0 0 62 36 44 10 35 32.0 14 101 -46 62 51 14 62 22 18 62 58 31 62 15 5 -0.90 172 0 0 62 37 54 10 35 29.5 15 102 -46 62 52 23 62 23 28 62 59 40 62 16 15 -0.90 173 0 0 62 38 51 10 35 27.0 15 103 -47 62 53 20 62 24 25 63 0 37 62 17 12 -0.91 174 0 0 62 39 34 10 35 24.3 16 104 -47 62 54 3 62 25 8 63 1 20 62 17 56 -0.91 175 0 0 62 40 4 10 35 21.6 16 105 -47 62 54 33 62 25 39 63 1 50 62 18 26 -0.91 176 0 0 62 40 21 10 35 18.8 17 106 -47 62 54 50 62 25 56 63 2 7 62 18 43 -0.91 177 0 0 62 40 25 10 35 16.0 17 106 -48 62 54 55 62 26 0 63 2 12 62 18 47 -0.91 178 0 0 62 40 16 10 35 13.0 18 107 -48 62 54 46 62 25 50 63 2 3 62 18 37 -0.91 179 0 0 62 39 54 10 35 10.0 18 108 -48 62 54 24 62 25 28 63 1 41 62 18 15 -0.91 -180 0 0 62 39 19 10 35 7.0 18 109 -48 62 53 49 62 24 52 63 1 6 62 17 39 -0.91 -179 0 0 62 38 31 10 35 3.8 19 110 -49 62 53 1 62 24 4 63 0 18 62 16 50 -0.91 -178 0 0 62 37 29 10 35 0.6 19 111 -49 62 52 0 62 23 2 62 59 18 62 15 49 -0.91 -177 0 0 62 36 15 10 34 57.3 20 112 -49 62 50 46 62 21 47 62 58 4 62 14 33 -0.91 -176 0 0 62 34 47 10 34 54.0 20 113 -49 62 49 19 62 20 19 62 56 37 62 13 5 -0.91 -175 0 0 62 33 7 10 34 50.6 21 114 -49 62 47 39 62 18 38 62 54 57 62 11 24 -0.91 -174 0 0 62 31 13 10 34 47.1 21 115 -50 62 45 46 62 16 44 62 53 5 62 9 29 -0.91 -173 0 0 62 29 6 10 34 43.5 21 116 -50 62 43 40 62 14 36 62 50 59 62 7 22 -0.91 -172 0 0 62 26 46 10 34 39.8 22 117 -50 62 41 20 62 12 16 62 48 40 62 5 1 -0.91 -171 0 0 62 24 13 10 34 36.1 22 118 -50 62 38 48 62 9 42 62 46 8 62 2 26 -0.91 -170 0 0 62 21 27 10 34 32.3 23 119 -50 62 36 2 62 6 55 62 43 23 61 59 39 -0.91 -169 0 0 62 18 27 10 34 28.4 23 119 -51 62 33 4 62 3 54 62 40 24 61 56 38 -0.91 -168 0 0 62 15 15 10 34 24.5 24 120 -51 62 29 52 62 0 41 62 37 13 61 53 24 -0.91 -167 0 0 62 11 48 10 34 20.5 24 121 -51 62 26 27 61 57 14 62 33 48 61 49 56 -0.91 -166 0 0 62 8 9 10 34 16.4 24 122 -51 62 22 48 61 53 33 62 30 10 61 46 16 -0.92 -165 0 0 62 4 16 10 34 12.2 25 123 -51 62 18 56 61 49 40 62 26 19 61 42 21 -0.92 -164 0 0 62 0 10 10 34 7.9 25 124 -51 62 14 51 61 45 32 62 22 14 61 38 14 -0.92 -163 0 0 61 55 51 10 34 3.6 26 125 -51 62 10 33 61 41 12 62 17 57 61 33 52 -0.92 -162 0 0 61 51 17 10 33 59.1 26 126 -51 62 6 1 61 36 37 62 13 25 61 29 18 -0.92 -161 0 0 61 46 31 10 33 54.6 26 127 -52 62 1 16 61 31 50 62 8 40 61 24 29 -0.92 -160 0 0 61 41 31 10 33 50.0 27 128 -52 61 56 17 61 26 48 62 3 42 61 19 27 -0.92 -159 0 0 61 36 17 10 33 45.4 27 129 -52 61 51 4 61 21 33 61 58 30 61 14 11 -0.92 -158 0 0 61 30 49 10 33 40.6 28 130 -52 61 45 38 61 16 4 61 53 5 61 8 42 -0.92 -157 0 0 61 25 8 10 33 35.7 28 131 -52 61 39 58 61 10 22 61 47 25 61 2 59 -0.92 -156 0 0 61 19 13 10 33 30.8 29 132 -52 61 34 4 61 4 25 61 41 32 60 57 2 -0.92 -155 0 0 61 13 4 10 33 25.8 29 133 -52 61 27 57 60 58 15 61 35 26 60 50 50 -0.92 -154 0 0 61 6 41 10 33 20.7 29 134 -52 61 21 35 60 51 51 61 29 5 60 44 25 -0.92 -153 0 0 61 0 4 10 33 15.5 30 135 -52 61 15 0 60 45 12 61 22 30 60 37 46 -0.92 -152 0 0 60 53 13 10 33 10.2 30 136 -52 61 8 11 60 38 20 61 15 42 60 30 53 -0.92 -151 0 0 60 46 9 10 33 4.8 31 137 -52 61 1 7 60 31 14 61 8 39 60 23 46 -0.92 -150 0 0 60 38 49 10 32 59.3 31 138 -52 60 53 50 60 23 53 61 1 22 60 16 25 -0.92 -149 0 0 60 31 16 10 32 53.7 31 139 -52 60 46 18 60 16 18 60 53 51 60 8 49 -0.92 -148 0 0 60 23 28 10 32 48.1 32 140 -52 60 38 32 60 8 29 60 46 6 60 0 59 -0.92 -147 0 0 60 15 26 10 32 42.3 32 141 -52 60 30 31 60 0 25 60 38 7 59 52 54 -0.92 -146 0 0 60 7 10 10 32 36.4 33 142 -52 60 22 17 59 52 7 60 29 53 59 44 36 -0.92 -145 0 0 59 58 39 10 32 30.5 33 143 -52 60 13 48 59 43 34 60 21 25 59 36 2 -0.92 -144 0 0 59 49 54 10 32 24.4 33 144 -52 60 5 4 59 34 47 60 12 42 59 27 14 -0.92 -143 0 0 59 40 54 10 32 18.2 34 145 -52 59 56 6 59 25 46 60 3 45 59 18 12 -0.92 -142 0 0 59 31 39 10 32 11.9 34 146 -52 59 46 53 59 16 30 59 54 33 59 8 55 -0.92 -141 0 0 59 22 10 10 32 5.6 35 147 -52 59 37 26 59 6 59 59 45 6 58 59 23 -0.92 -140 0 0 59 12 26 10 31 59.1 35 149 -52 59 27 43 58 57 13 59 35 25 58 49 36 -0.92 -139 0 0 59 2 27 10 31 52.5 36 150 -52 59 17 47 58 47 12 59 25 29 58 39 35 -0.92 -138 0 0 58 52 14 10 31 45.8 36 151 -52 59 7 35 58 36 57 59 15 18 58 29 19 -0.92 -137 0 0 58 41 45 10 31 39.0 36 152 -51 58 57 8 58 26 27 59 4 52 58 18 48 -0.92 -136 0 0 58 31 2 10 31 32.1 37 153 -51 58 46 27 58 15 42 58 54 12 58 8 2 -0.92 -135 0 0 58 20 4 10 31 25.1 37 154 -51 58 35 30 58 4 42 58 43 16 57 57 1 -0.92 -134 0 0 58 8 51 10 31 17.9 37 155 -51 58 24 19 57 53 27 58 32 5 57 45 45 -0.92 -133 0 0 57 57 22 10 31 10.7 38 156 -51 58 12 52 57 41 57 58 20 40 57 34 14 -0.92 -132 0 0 57 45 39 10 31 3.3 38 157 -51 58 1 11 57 30 12 58 8 59 57 22 28 -0.92 -131 0 0 57 33 41 10 30 55.8 39 159 -51 57 49 14 57 18 12 57 57 4 57 10 27 -0.93 -130 0 0 57 21 27 10 30 48.2 39 160 -50 57 37 3 57 5 56 57 44 53 56 58 11 -0.93 -129 0 0 57 8 59 10 30 40.5 39 161 -50 57 24 36 56 53 26 57 32 27 56 45 40 -0.93 -128 0 0 56 56 16 10 30 32.7 40 162 -50 57 11 54 56 40 41 57 19 46 56 32 54 -0.93 -127 0 0 56 43 17 10 30 24.7 40 163 -50 56 58 57 56 27 41 57 6 50 56 19 53 -0.93 -126 0 0 56 30 3 10 30 16.7 40 164 -49 56 45 46 56 14 26 56 53 39 56 6 37 -0.93 -125 0 0 56 16 35 10 30 8.5 41 166 -49 56 32 19 56 0 55 56 40 13 55 53 6 -0.93 -124 0 0 56 2 51 10 30 0.2 41 167 -49 56 18 37 55 47 10 56 26 32 55 39 20 -0.93 -123 0 0 55 48 53 10 29 51.8 42 168 -49 56 4 40 55 33 10 56 12 36 55 25 19 -0.93 -122 0 0 55 34 39 10 29 43.2 42 169 -48 55 50 28 55 18 55 55 58 25 55 11 3 -0.93 -121 0 0 55 20 11 10 29 34.6 42 171 -48 55 36 1 55 4 25 55 43 59 54 56 33 -0.93 -120 0 0 55 5 28 10 29 25.8 43 172 -48 55 21 20 54 49 41 55 29 19 54 41 48 -0.93 -119 0 0 54 50 30 10 29 16.9 43 173 -47 55 6 24 54 34 42 55 14 23 54 26 48 -0.93 -118 0 0 54 35 18 10 29 7.9 43 174 -47 54 51 13 54 19 28 54 59 13 54 11 33 -0.93 -117 0 0 54 19 51 10 28 58.7 43 176 -47 54 35 47 54 3 59 54 43 48 53 56 4 -0.93 -116 0 0 54 4 9 10 28 49.4 44 177 -46 54 20 7 53 48 17 54 28 9 53 40 21 -0.93 -115 0 0 53 48 14 10 28 40.1 44 178 -46 54 4 12 53 32 20 54 12 15 53 24 23 -0.93 -114 0 0 53 32 4 10 28 30.6 44 180 -45 53 48 4 53 16 8 53 56 7 53 8 11 -0.93 -113 0 0 53 15 40 10 28 20.9 45 181 -45 53 31 41 52 59 43 53 39 45 52 51 45 -0.93 -112 0 0 52 59 2 10 28 11.2 45 182 -45 53 15 4 52 43 4 53 23 8 52 35 5 -0.93 -111 0 0 52 42 10 10 28 1.3 45 184 -44 52 58 13 52 26 11 53 6 18 52 18 12 -0.93 -110 0 0 52 25 4 10 27 51.4 45 185 -44 52 41 9 52 9 4 52 49 14 52 1 5 -0.93 -109 0 0 52 7 45 10 27 41.3 46 186 -43 52 23 51 51 51 44 52 31 57 51 43 44 -0.93 -108 0 0 51 50 13 10 27 31.1 46 188 -43 52 6 20 51 34 11 52 14 26 51 26 11 -0.92 -107 0 0 51 32 28 10 27 20.8 46 189 -42 51 48 36 51 16 25 51 56 42 51 8 24 -0.92 -106 0 0 51 14 30 10 27 10.4 46 191 -42 51 30 38 50 58 26 51 38 46 50 50 25 -0.92 -105 0 0 50 56 19 10 26 59.8 46 192 -41 51 12 28 50 40 15 51 20 36 50 32 13 -0.92 -104 0 0 50 37 56 10 26 49.2 47 193 -41 50 54 6 50 21 51 51 2 14 50 13 49 -0.92 -103 0 0 50 19 21 10 26 38.5 47 195 -40 50 35 32 50 3 16 50 43 40 49 55 13 -0.92 -102 0 0 50 0 34 10 26 27.6 47 196 -40 50 16 45 49 44 28 50 24 54 49 36 25 -0.92 -101 0 0 49 41 36 10 26 16.7 47 198 -39 49 57 47 49 25 29 50 5 56 49 17 26 -0.92 -100 0 0 49 22 26 10 26 5.7 47 199 -39 49 38 38 49 6 19 49 46 47 48 58 16 -0.92 - 99 0 0 49 3 5 10 25 54.5 47 201 -38 49 19 17 48 46 57 49 27 26 48 38 54 -0.92 - 98 0 0 48 43 33 10 25 43.3 47 202 -37 48 59 46 48 27 26 49 7 55 48 19 22 -0.92 - 97 0 0 48 23 52 10 25 32.0 47 204 -37 48 40 4 48 7 44 48 48 14 47 59 40 -0.92 - 96 0 0 48 4 0 10 25 20.6 47 205 -36 48 20 13 47 47 52 48 28 22 47 39 48 -0.92 - 95 0 0 47 43 58 10 25 9.2 47 207 -36 48 0 11 47 27 50 48 8 21 47 19 46 -0.92 - 94 0 0 47 23 47 10 24 57.6 47 208 -35 47 40 0 47 7 39 47 48 10 46 59 35 -0.92 - 93 0 0 47 3 27 10 24 46.0 47 210 -34 47 19 40 46 47 19 47 27 50 46 39 15 -0.92 - 92 0 0 46 42 59 10 24 34.3 47 211 -34 46 59 12 46 26 51 47 7 21 46 18 47 -0.92 - 91 0 0 46 22 22 10 24 22.6 47 213 -33 46 38 35 46 6 14 46 46 44 45 58 11 -0.92 - 90 0 0 46 1 38 10 24 10.8 47 214 -32 46 17 50 45 45 30 46 26 0 45 37 27 -0.92 - 89 0 0 45 40 46 10 23 58.9 47 216 -32 45 56 58 45 24 39 46 5 7 45 16 36 -0.92 - 88 0 0 45 19 48 10 23 47.0 47 217 -31 45 35 59 45 3 41 45 44 8 44 55 38 -0.92 - 87 0 0 44 58 42 10 23 35.0 47 219 -30 45 14 54 44 42 36 45 23 2 44 34 33 -0.92 - 86 0 0 44 37 31 10 23 23.0 47 220 -30 44 53 42 44 21 25 45 1 50 44 13 22 -0.92 - 85 0 0 44 16 14 10 23 11.0 47 222 -29 44 32 24 44 0 9 44 40 33 43 52 6 -0.92 - 84 0 0 43 54 52 10 22 58.9 46 223 -28 44 11 2 43 38 47 44 19 10 43 30 45 -0.92 - 83 0 0 43 33 25 10 22 46.9 46 224 -28 43 49 34 43 17 21 43 57 42 43 9 20 -0.92 - 82 0 0 43 11 54 10 22 34.8 46 226 -27 43 28 3 42 55 51 43 36 10 42 47 50 -0.92 - 81 0 0 42 50 20 10 22 22.6 46 227 -26 43 6 27 42 34 17 43 14 34 42 26 16 -0.92 - 80 0 0 42 28 42 10 22 10.5 45 229 -25 42 44 48 42 12 40 42 52 54 42 4 40 -0.92 - 79 0 0 42 7 1 10 21 58.4 45 230 -25 42 23 7 41 51 0 42 31 12 41 43 0 -0.92 - 78 0 0 41 45 18 10 21 46.3 45 231 -24 42 1 22 41 29 18 42 9 28 41 21 19 -0.91 - 77 0 0 41 23 33 10 21 34.2 44 233 -23 41 39 37 41 7 35 41 47 41 40 59 36 -0.91 - 76 0 0 41 1 47 10 21 22.1 44 234 -22 41 17 50 40 45 50 41 25 54 40 37 51 -0.91 - 75 0 0 40 40 1 10 21 10.0 44 235 -22 40 56 2 40 24 4 41 4 5 40 16 6 -0.91 - 74 0 0 40 18 14 10 20 58.0 43 237 -21 40 34 14 40 2 18 40 42 17 39 54 21 -0.91 - 73 0 0 39 56 27 10 20 46.0 43 238 -20 40 12 26 39 40 33 40 20 28 39 32 36 -0.91 - 72 0 0 39 34 41 10 20 34.0 42 239 -19 39 50 39 39 18 48 39 58 40 39 10 52 -0.91 - 71 0 0 39 12 57 10 20 22.1 42 240 -18 39 28 53 38 57 5 39 36 54 38 49 10 -0.91 - 70 0 0 38 51 14 10 20 10.3 41 242 -18 39 7 9 38 35 24 39 15 9 38 27 29 -0.91 - 69 0 0 38 29 34 10 19 58.5 41 243 -17 38 45 28 38 13 45 38 53 27 38 5 51 -0.91 - 68 0 0 38 7 57 10 19 46.8 40 244 -16 38 23 49 37 52 9 38 31 48 37 44 16 -0.91 - 67 0 0 37 46 23 10 19 35.2 40 245 -15 38 2 14 37 30 37 38 10 12 37 22 45 -0.91 - 66 0 0 37 24 53 10 19 23.6 39 246 -14 37 40 42 37 9 9 37 48 40 37 1 17 -0.91 - 65 0 0 37 3 28 10 19 12.2 39 247 -13 37 19 15 36 47 45 37 27 12 36 39 54 -0.91 - 64 0 0 36 42 8 10 19 0.8 38 248 -13 36 57 54 36 26 26 37 5 49 36 18 36 -0.91 - 63 0 0 36 20 53 10 18 49.6 38 249 -12 36 36 37 36 5 13 36 44 32 35 57 24 -0.91 - 62 0 0 35 59 45 10 18 38.5 37 250 -11 36 15 27 35 44 6 36 23 21 35 36 17 -0.91 - 61 0 0 35 38 43 10 18 27.4 37 251 -10 35 54 24 35 23 6 36 2 17 35 15 18 -0.91 - 60 0 0 35 17 48 10 18 16.6 36 252 -9 35 33 27 35 2 13 35 41 20 34 54 25 -0.91 - 59 0 0 34 57 1 10 18 5.8 35 253 -8 35 12 39 34 41 27 35 20 30 34 33 41 -0.91 - 58 0 0 34 36 22 10 17 55.2 35 254 -7 34 51 58 34 20 50 34 59 49 34 13 4 -0.91 - 57 0 0 34 15 52 10 17 44.7 34 255 -7 34 31 26 34 0 22 34 39 16 33 52 37 -0.91 - 56 0 0 33 55 31 10 17 34.4 33 256 -6 34 11 3 33 40 2 34 18 53 33 32 18 -0.91 - 55 0 0 33 35 20 10 17 24.2 33 257 -5 33 50 51 33 19 53 33 58 39 33 12 10 -0.91 - 54 0 0 33 15 19 10 17 14.3 32 258 -4 33 30 48 32 59 53 33 38 35 32 52 11 -0.91 - 53 0 0 32 55 28 10 17 4.4 31 258 -3 33 10 56 32 40 5 33 18 42 32 32 23 -0.91 - 52 0 0 32 35 49 10 16 54.8 30 259 -2 32 51 15 32 20 27 32 59 1 32 12 47 -0.91 - 51 0 0 32 16 22 10 16 45.3 30 260 -1 32 31 46 32 1 2 32 39 31 31 53 22 -0.91 - 50 0 0 31 57 7 10 16 36.1 29 261 -1 32 12 29 31 41 48 32 20 13 31 34 9 -0.91 - 49 0 0 31 38 4 10 16 27.0 28 262 0 31 53 25 31 22 48 32 1 8 31 15 9 -0.91 - 48 0 0 31 19 15 10 16 18.2 27 262 1 31 34 34 31 4 0 31 42 16 30 56 23 -0.91 - 47 0 0 31 0 39 10 16 9.5 27 263 2 31 15 57 30 45 26 31 23 38 30 37 49 -0.91 - 46 0 0 30 42 18 10 16 1.1 26 264 3 30 57 33 30 27 6 31 5 14 30 19 30 -0.91 - 45 0 0 30 24 11 10 15 52.9 25 264 4 30 39 25 30 9 1 30 47 4 30 1 26 -0.91 - 44 0 0 30 6 19 10 15 44.9 24 265 5 30 21 31 29 51 10 30 29 10 29 43 36 -0.92 - 43 0 0 29 48 42 10 15 37.1 23 266 6 30 3 52 29 33 35 30 11 30 29 26 2 -0.92 - 42 0 0 29 31 21 10 15 29.6 23 266 6 29 46 30 29 16 16 29 54 7 29 8 44 -0.92 - 41 0 0 29 14 17 10 15 22.3 22 267 7 29 29 24 28 59 13 29 37 0 28 51 42 -0.92 - 40 0 0 28 57 29 10 15 15.3 21 267 8 29 12 35 28 42 27 29 20 10 28 34 56 -0.92 - 39 0 0 28 40 59 10 15 8.5 20 268 9 28 56 3 28 25 58 29 3 38 28 18 28 -0.92 - 38 0 0 28 24 46 10 15 2.0 19 269 10 28 39 48 28 9 47 28 47 22 28 2 18 -0.92 - 37 0 0 28 8 51 10 14 55.7 18 269 11 28 23 52 27 53 53 28 31 25 27 46 25 -0.92 - 36 0 0 27 53 14 10 14 49.7 18 270 12 28 8 14 27 38 18 28 15 46 27 30 51 -0.92 - 35 0 0 27 37 56 10 14 44.0 17 270 12 27 52 55 27 23 2 28 0 26 27 15 35 -0.93 - 34 0 0 27 22 58 10 14 38.5 16 271 13 27 37 54 27 8 5 27 45 25 27 0 38 -0.93 - 33 0 0 27 8 19 10 14 33.4 15 271 14 27 23 14 26 53 27 27 30 44 26 46 1 -0.93 - 32 0 0 26 53 59 10 14 28.5 14 272 15 27 8 53 26 39 9 27 16 23 26 31 44 -0.93 - 31 0 0 26 40 0 10 14 23.8 13 272 16 26 54 53 26 25 11 27 2 22 26 17 47 -0.94 - 30 0 0 26 26 22 10 14 19.5 12 273 17 26 41 13 26 11 34 26 48 41 26 4 11 -0.94 - 29 0 0 26 13 5 10 14 15.5 11 273 17 26 27 55 25 58 18 26 35 22 25 50 55 -0.94 - 28 0 0 26 0 8 10 14 11.8 10 274 18 26 14 57 25 45 23 26 22 24 25 38 1 -0.95 - 27 0 0 25 47 34 10 14 8.3 10 274 19 26 2 22 25 32 50 26 9 48 25 25 28 -0.95 - 26 0 0 25 35 22 10 14 5.2 9 275 20 25 50 8 25 20 39 25 57 34 25 13 18 -0.96 - 25 0 0 25 23 31 10 14 2.4 8 275 21 25 38 17 25 8 50 25 45 42 25 1 29 -0.96 - 24 0 0 25 12 4 10 13 59.8 7 275 22 25 26 48 24 57 23 25 34 12 24 50 3 -0.97 - 23 0 0 25 0 59 10 13 57.6 6 276 22 25 15 42 24 46 20 25 23 6 24 39 0 -0.98 - 22 0 0 24 50 18 10 13 55.7 5 276 23 25 5 0 24 35 39 25 12 23 24 28 20 -1.00 - 21 0 0 24 40 0 10 13 54.1 4 277 24 24 54 41 24 25 22 25 2 4 24 18 3 -1.02 - 20 0 0 24 30 5 10 13 52.8 3 277 25 24 44 46 24 15 29 24 52 8 24 8 10 -1.06 - 19 0 0 24 20 35 10 13 51.9 2 278 25 24 35 14 24 5 59 24 42 37 23 58 42 -1.12 - 18 0 0 24 11 29 10 13 51.2 1 278 26 24 26 8 23 56 54 24 33 30 23 49 37 -1.27 - 17 0 0 24 2 48 10 13 50.9 0 278 27 24 17 26 23 48 14 24 24 47 23 40 57 -2.04 Uncertainty in time = +/- 5 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 490-049830 * constellation : Cancer * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 46 31.6012 DE: +07 53 09.250 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 46 31.6013 DE: +07 53 09.250 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.1 * B mag [mag]: 11.4 * 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]: 2.57520 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): 0.018", 0.002", 92.509° remarks: * orbital elements for (3631)Sigyn : Mean anomaly = 168.1604940842 deg Arg. of pericenter = 158.6184665147 deg Long. of node = 150.5932716384 deg Inclination = 14.4086297873 deg Eccentricity = 0.0824533427 Semimajor axis = 3.0932038770 AU Perihelion dist = 2.8381588777 AU Mag: H = 11.22, G = 0.15 Epoch of elements : MJD 60663.43406495 TDT (2024 Dec 19.4341) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#532023Apr27,5.64,2024,12,19,10.417504,0.212743,0.640482,-3.748810,1.247118,-0.003881,0.001841,0.000001,0.000000 -112.8063,7.7946,23.06,-23.42,False UCAC4 490-049830,8.77544477,7.8859029,11.39,11.14,11.01,0.0,0,,8.79801009,7.7945906,5.49,5.18,0,0,0 3631,Sigyn,16.62,39.452,2.5752,0,0,-0.861,4.26,,2.0,0 0,168.0819,2024,12,19,158.6185,150.5933,14.4086,0.08245,3.09320,2.83816,11.22,5.0,0.15 1.251,0.0180,0.0020,93,0.0053,Known errors,1.38,0,-1,-1 20241219_049830,60140.75 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:54 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org