IOTA/IOTA-ES occultation update for (1757) Porvoo / G053547.1+280950 event on 2024 Dec 17, 08:52 UT Visible from Summary ------- On 2024 Dec 17 UT, the 12.6728573836832 km diameter asteroid (1757) Porvoo will occult a 12.0 mag star in the constellation Taurus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.42 mag to 16.36 mag (the magnitude of the asteroid) for at most 1.320 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: 98 * date and approx. time of event: 2024 Dec 17, 08:42 - 2024 Dec 17, 09:01 * geocentric midpoint of event [JD]: 2460661.86949083 * magnitude of target star: 11.96 * magnitude drop [mag]: 4.42 * estimated maximum duration [s]: 1.320 * Moon: 95 % sunlit, 26° distance * Sun: 175° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 15 * 1 sigma uncertainty interval [path widths]: +/- 0.36 * 1 sigma uncertainty interval [seconds]: +/- 2.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.023, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.023", 0.004", 84°) * approx speed of asteroid's shadow [km/s]: 11.3157 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of G053547.1+280950 by 1757 Porvoo on 2024 Dec 17 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 130 0 0 5 20 30 9 1 26.7 0 62 1 5 25 5 5 15 54 5 28 25 5 12 35 5 23 44 5 17 16 .... 131 0 0 5 52 49 9 1 26.6 1 62 0 5 57 25 5 48 13 6 0 44 5 44 54 5 56 3 5 49 35 -0.13 132 0 0 6 25 1 9 1 26.2 3 62 -1 6 29 37 6 20 26 6 32 56 6 17 7 6 28 15 6 21 48 -0.09 133 0 0 6 57 6 9 1 25.6 4 62 -2 7 1 42 6 52 31 7 5 0 6 49 12 7 0 20 6 53 53 -0.07 134 0 0 7 29 3 9 1 24.7 5 62 -3 7 33 38 7 24 28 7 36 56 7 21 9 7 32 16 7 25 49 -0.07 135 0 0 8 0 50 9 1 23.7 6 62 -4 8 5 25 7 56 15 8 8 43 7 52 57 8 4 3 7 57 37 -0.06 136 0 0 8 32 27 9 1 22.5 7 62 -5 8 37 2 8 27 52 8 40 20 8 24 34 8 35 40 8 29 14 -0.06 137 0 0 9 3 53 9 1 21.0 8 63 -7 9 8 27 8 59 19 9 11 45 8 56 1 9 7 6 9 0 40 -0.05 138 0 0 9 35 7 9 1 19.4 9 63 -8 9 39 42 9 30 33 9 42 59 9 27 16 9 38 20 9 31 55 -0.05 139 0 0 10 6 9 9 1 17.5 10 63 -9 10 10 43 10 1 36 10 14 1 9 58 18 10 9 22 10 2 57 -0.05 140 0 0 10 36 58 9 1 15.4 11 63 -10 10 41 31 10 32 25 10 44 49 10 29 7 10 40 10 10 33 46 -0.05 141 0 0 11 7 33 9 1 13.2 13 63 -11 11 12 6 11 3 0 11 15 23 10 59 43 11 10 45 11 4 21 -0.05 142 0 0 11 37 53 9 1 10.7 14 63 -12 11 42 25 11 33 20 11 45 42 11 30 3 11 41 4 11 34 41 -0.05 143 0 0 12 7 57 9 1 8.1 15 64 -13 12 12 29 12 3 25 12 15 46 12 0 8 12 11 9 12 4 46 -0.05 144 0 0 12 37 46 9 1 5.3 16 64 -14 12 42 18 12 33 14 12 45 34 12 29 58 12 40 57 12 34 35 -0.05 145 0 0 13 7 18 9 1 2.3 17 64 -15 13 11 49 13 2 46 13 15 5 12 59 31 13 10 29 13 4 7 -0.05 146 0 0 13 36 33 9 0 59.1 18 64 -16 13 41 4 13 32 2 13 44 19 13 28 46 13 39 43 13 33 22 -0.05 147 0 0 14 5 30 9 0 55.7 19 65 -17 14 10 0 14 0 59 14 13 16 13 57 44 14 8 40 14 2 19 -0.05 148 0 0 14 34 8 9 0 52.2 20 65 -18 14 38 39 14 29 38 14 41 53 14 26 23 14 37 18 14 30 58 -0.05 149 0 0 15 2 28 9 0 48.5 21 65 -20 15 6 58 14 57 59 15 10 12 14 54 44 15 5 38 14 59 19 -0.05 150 0 0 15 30 29 9 0 44.6 22 65 -21 15 34 58 15 25 59 15 38 12 15 22 45 15 33 38 15 27 19 -0.05 151 0 0 15 58 9 9 0 40.6 23 66 -22 16 2 38 15 53 41 16 5 52 15 50 27 16 1 18 15 55 0 -0.05 152 0 0 16 25 29 9 0 36.4 24 66 -23 16 29 58 16 21 1 16 33 11 16 17 48 16 28 38 16 22 21 -0.05 153 0 0 16 52 29 9 0 32.1 25 66 -24 16 56 57 16 48 1 17 0 10 16 44 48 16 55 37 16 49 21 -0.05 154 0 0 17 19 7 9 0 27.6 26 67 -25 17 23 34 17 14 40 17 26 47 17 11 27 17 22 15 17 15 59 -0.05 155 0 0 17 45 24 9 0 23.0 27 67 -26 17 49 51 17 40 58 17 53 3 17 37 45 17 48 32 17 42 17 -0.05 156 0 0 18 11 19 9 0 18.3 28 67 -27 18 15 45 18 6 53 18 18 57 18 3 41 18 14 26 18 8 12 -0.05 157 0 0 18 36 52 9 0 13.4 29 67 -28 18 41 17 18 32 26 18 44 29 18 29 15 18 39 59 18 33 45 -0.05 158 0 0 19 2 2 9 0 8.4 31 68 -29 19 6 27 18 57 37 19 9 38 18 54 26 19 5 8 18 58 56 -0.05 159 0 0 19 26 49 9 0 3.2 32 68 -30 19 31 14 19 22 25 19 34 24 19 19 14 19 29 55 19 23 43 -0.05 160 0 0 19 51 13 8 59 58.0 33 69 -31 19 55 37 19 46 50 19 58 48 19 43 39 19 54 19 19 48 8 -0.05 161 0 0 20 15 14 8 59 52.6 34 69 -32 20 19 38 20 10 51 20 22 48 20 7 41 20 18 20 20 12 9 -0.05 162 0 0 20 38 52 8 59 47.1 35 69 -33 20 43 14 20 34 29 20 46 24 20 31 19 20 41 56 20 35 47 -0.05 163 0 0 21 2 5 8 59 41.5 36 70 -34 21 6 27 20 57 43 21 9 36 20 54 34 21 5 9 20 59 1 -0.05 164 0 0 21 24 54 8 59 35.7 36 70 -35 21 29 16 21 20 33 21 32 25 21 17 24 21 27 58 21 21 50 -0.05 165 0 0 21 47 20 8 59 29.9 37 70 -36 21 51 41 21 42 59 21 54 49 21 39 50 21 50 23 21 44 16 -0.05 166 0 0 22 9 20 8 59 24.0 38 71 -37 22 13 41 22 5 0 22 16 49 22 1 52 22 12 24 22 6 17 -0.05 167 0 0 22 30 57 8 59 18.0 39 71 -38 22 35 17 22 26 37 22 38 24 22 23 29 22 34 0 22 27 54 -0.05 168 0 0 22 52 8 8 59 11.9 40 72 -39 22 56 28 22 47 49 22 59 35 22 44 42 22 55 11 22 49 6 -0.05 169 0 0 23 12 55 8 59 5.7 41 72 -39 23 17 14 23 8 37 23 20 21 23 5 30 23 15 57 23 9 53 -0.05 170 0 0 23 33 17 8 58 59.4 42 72 -40 23 37 36 23 28 59 23 40 42 23 25 53 23 36 19 23 30 16 -0.05 171 0 0 23 53 15 8 58 53.0 43 73 -41 23 57 32 23 48 57 24 0 38 23 45 51 23 56 16 23 50 13 -0.05 172 0 0 24 12 47 8 58 46.6 44 73 -42 24 17 4 24 8 29 24 20 9 24 5 24 24 15 48 24 9 46 -0.05 173 0 0 24 31 54 8 58 40.0 45 74 -43 24 36 10 24 27 37 24 39 15 24 24 32 24 34 54 24 28 53 -0.05 174 0 0 24 50 35 8 58 33.4 46 74 -44 24 54 52 24 46 19 24 57 56 24 43 15 24 53 36 24 47 35 -0.05 175 0 0 25 8 52 8 58 26.8 47 75 -45 25 13 8 25 4 37 25 16 12 25 1 32 25 11 52 25 5 52 -0.05 176 0 0 25 26 44 8 58 20.0 48 75 -46 25 30 59 25 22 29 25 34 3 25 19 24 25 29 43 25 23 44 -0.05 177 0 0 25 44 10 8 58 13.2 49 76 -47 25 48 24 25 39 55 25 51 28 25 36 52 25 47 9 25 41 11 -0.05 178 0 0 26 1 11 8 58 6.3 50 76 -48 26 5 25 25 56 57 26 8 28 25 53 53 26 4 9 25 58 12 -0.05 179 0 0 26 17 46 8 57 59.4 51 77 -49 26 22 0 26 13 33 26 25 3 26 10 30 26 20 44 26 14 48 -0.05 -180 0 0 26 33 57 8 57 52.4 52 77 -50 26 38 9 26 29 44 26 41 12 26 26 41 26 36 54 26 30 59 -0.05 -179 0 0 26 49 42 8 57 45.4 52 78 -50 26 53 54 26 45 29 26 56 56 26 42 27 26 52 39 26 46 44 -0.05 -178 0 0 27 5 1 8 57 38.3 53 78 -51 27 9 13 27 0 49 27 12 15 26 57 48 27 7 59 27 2 4 -0.05 -177 0 0 27 19 56 8 57 31.1 54 79 -52 27 24 8 27 15 44 27 27 9 27 12 43 27 22 53 27 16 59 -0.05 -176 0 0 27 34 25 8 57 23.9 55 79 -53 27 38 36 27 30 14 27 41 38 27 27 13 27 37 22 27 31 29 -0.05 -175 0 0 27 48 30 8 57 16.7 56 80 -54 27 52 40 27 44 19 27 55 41 27 41 18 27 51 26 27 45 33 -0.05 -174 0 0 28 2 9 8 57 9.4 57 80 -55 28 6 19 27 57 58 28 9 19 27 54 58 28 5 5 27 59 13 -0.05 -173 0 0 28 15 22 8 57 2.1 58 81 -56 28 19 32 28 11 13 28 22 32 28 8 13 28 18 18 28 12 27 -0.05 -172 0 0 28 28 11 8 56 54.7 59 82 -57 28 32 21 28 24 2 28 35 21 28 21 2 28 31 7 28 25 16 -0.05 -171 0 0 28 40 35 8 56 47.3 60 82 -57 28 44 44 28 36 26 28 47 44 28 33 27 28 43 30 28 37 40 -0.05 -170 0 0 28 52 34 8 56 39.8 60 83 -58 28 56 43 28 48 26 28 59 42 28 45 26 28 55 29 28 49 39 -0.05 -169 0 0 29 4 8 8 56 32.3 61 83 -59 29 8 16 29 0 0 29 11 15 28 57 1 29 7 3 29 1 13 -0.05 -168 0 0 29 15 17 8 56 24.8 62 84 -60 29 19 25 29 11 9 29 22 24 29 8 11 29 18 11 29 12 23 -0.05 -167 0 0 29 26 1 8 56 17.2 63 85 -61 29 30 9 29 21 54 29 33 7 29 18 55 29 28 55 29 23 7 -0.05 -166 0 0 29 36 21 8 56 9.6 64 85 -62 29 40 28 29 32 14 29 43 26 29 29 15 29 39 14 29 33 27 -0.05 -165 0 0 29 46 15 8 56 2.0 65 86 -62 29 50 22 29 42 9 29 53 20 29 39 11 29 49 9 29 43 22 -0.05 -164 0 0 29 55 46 8 55 54.4 66 87 -63 29 59 52 29 51 39 30 2 50 29 48 41 29 58 39 29 52 52 -0.05 -163 0 0 30 4 51 8 55 46.7 66 88 -64 30 8 57 30 0 45 30 11 55 29 57 47 30 7 44 30 1 58 -0.05 -162 0 0 30 13 32 8 55 39.0 67 88 -65 30 17 38 30 9 26 30 20 35 30 6 29 30 16 25 30 10 39 -0.05 -161 0 0 30 21 48 8 55 31.3 68 89 -66 30 25 54 30 17 43 30 28 51 30 14 46 30 24 41 30 18 56 -0.06 -160 0 0 30 29 40 8 55 23.5 69 90 -66 30 33 45 30 25 35 30 36 42 30 22 38 30 32 33 30 26 48 -0.06 -159 0 0 30 37 8 8 55 15.7 70 91 -67 30 41 13 30 33 3 30 44 9 30 30 6 30 40 0 30 34 16 -0.06 -158 0 0 30 44 11 8 55 7.9 70 92 -68 30 48 16 30 40 6 30 51 12 30 37 10 30 47 3 30 41 19 -0.06 -157 0 0 30 50 50 8 55 0.1 71 92 -69 30 54 54 30 46 46 30 57 51 30 43 49 30 53 42 30 47 58 -0.06 -156 0 0 30 57 5 8 54 52.3 72 93 -70 31 1 9 30 53 1 31 4 5 30 50 4 30 59 56 30 54 13 -0.06 -155 0 0 31 2 55 8 54 44.4 73 94 -70 31 6 59 30 58 51 31 9 55 30 55 55 31 5 47 31 0 4 -0.06 -154 0 0 31 8 21 8 54 36.5 74 95 -71 31 12 25 31 4 18 31 15 21 31 1 22 31 11 13 31 5 30 -0.06 -153 0 0 31 13 24 8 54 28.6 75 96 -72 31 17 27 31 9 20 31 20 23 31 6 24 31 16 15 31 10 32 -0.06 -152 0 0 31 18 2 8 54 20.7 75 98 -72 31 22 5 31 13 58 31 25 1 31 11 3 31 20 53 31 15 11 -0.06 -151 0 0 31 22 16 8 54 12.8 76 99 -73 31 26 19 31 18 13 31 29 15 31 15 17 31 25 7 31 19 25 -0.06 -150 0 0 31 26 6 8 54 4.9 77 100 -74 31 30 9 31 22 3 31 33 5 31 19 7 31 28 57 31 23 15 -0.06 -149 0 0 31 29 32 8 53 56.9 78 102 -75 31 33 35 31 25 29 31 36 30 31 22 34 31 32 23 31 26 41 -0.06 -148 0 0 31 32 34 8 53 48.9 79 103 -75 31 36 37 31 28 31 31 39 32 31 25 36 31 35 25 31 29 43 -0.06 -147 0 0 31 35 13 8 53 40.9 79 105 -76 31 39 15 31 31 10 31 42 11 31 28 15 31 38 3 31 32 22 -0.06 -146 0 0 31 37 27 8 53 32.9 80 107 -77 31 41 30 31 33 24 31 44 25 31 30 29 31 40 18 31 34 36 -0.06 -145 0 0 31 39 17 8 53 24.9 81 109 -77 31 43 20 31 35 15 31 46 15 31 32 20 31 42 8 31 36 27 -0.06 -144 0 0 31 40 44 8 53 16.9 82 112 -78 31 44 47 31 36 41 31 47 42 31 33 46 31 43 35 31 37 53 -0.06 -143 0 0 31 41 47 8 53 8.8 82 115 -78 31 45 49 31 37 44 31 48 44 31 34 49 31 44 37 31 38 56 -0.06 -142 0 0 31 42 26 8 53 0.8 83 119 -79 31 46 28 31 38 23 31 49 23 31 35 28 31 45 16 31 39 35 -0.06 -141 0 0 31 42 41 8 52 52.7 84 123 -80 31 46 43 31 38 39 31 49 39 31 35 44 31 45 32 31 39 50 -0.06 -140 0 0 31 42 32 8 52 44.7 84 128 -80 31 46 35 31 38 30 31 49 30 31 35 35 31 45 23 31 39 42 -0.06 -139 0 0 31 42 0 8 52 36.6 85 135 -80 31 46 2 31 37 57 31 48 57 31 35 2 31 44 50 31 39 9 -0.06 -138 0 0 31 41 4 8 52 28.5 85 144 -81 31 45 6 31 37 1 31 48 1 31 34 6 31 43 54 31 38 13 -0.07 -137 0 0 31 39 43 8 52 20.4 86 154 -81 31 43 46 31 35 41 31 46 41 31 32 46 31 42 34 31 36 53 -0.07 -136 0 0 31 38 0 8 52 12.3 86 168 -81 31 42 2 31 33 57 31 44 57 31 31 2 31 40 50 31 35 9 -0.07 -135 0 0 31 35 52 8 52 4.2 86 182 -82 31 39 55 31 31 49 31 42 50 31 28 54 31 38 43 31 33 1 -0.07 -134 0 0 31 33 20 8 51 56.1 86 197 -82 31 37 23 31 29 17 31 40 18 31 26 22 31 36 11 31 30 29 -0.07 -133 0 0 31 30 25 8 51 48.0 86 210 -82 31 34 28 31 26 22 31 37 23 31 23 26 31 33 16 31 27 34 -0.07 -132 0 0 31 27 5 8 51 39.8 85 221 -82 31 31 8 31 23 2 31 34 4 31 20 7 31 29 56 31 24 14 -0.07 -131 0 0 31 23 22 8 51 31.7 85 230 -81 31 27 25 31 19 19 31 30 21 31 16 23 31 26 13 31 20 31 -0.06 -130 0 0 31 19 15 8 51 23.6 84 237 -81 31 23 18 31 15 12 31 26 14 31 12 16 31 22 6 31 16 24 -0.06 -129 0 0 31 14 44 8 51 15.4 84 242 -81 31 18 47 31 10 40 31 21 43 31 7 44 31 17 35 31 11 52 -0.06 -128 0 0 31 9 48 8 51 7.3 83 247 -81 31 13 52 31 5 45 31 16 48 31 2 49 31 12 40 31 6 57 -0.06 -127 0 0 31 4 29 8 50 59.2 82 250 -80 31 8 33 31 0 25 31 11 29 30 57 29 31 7 21 31 1 38 -0.06 -126 0 0 30 58 46 8 50 51.0 82 253 -80 31 2 50 30 54 42 31 5 46 30 51 46 31 1 38 30 55 54 -0.06 -125 0 0 30 52 39 8 50 42.9 81 256 -79 30 56 43 30 48 34 30 59 39 30 45 38 30 55 31 30 49 47 -0.06 -124 0 0 30 46 7 8 50 34.7 80 258 -79 30 50 12 30 42 3 30 53 8 30 39 6 30 48 59 30 43 15 -0.06 -123 0 0 30 39 12 8 50 26.6 79 260 -78 30 43 16 30 35 7 30 46 13 30 32 10 30 42 4 30 36 19 -0.06 -122 0 0 30 31 52 8 50 18.5 78 262 -77 30 35 57 30 27 47 30 38 54 30 24 50 30 34 44 30 28 59 -0.06 -121 0 0 30 24 7 8 50 10.3 78 264 -77 30 28 13 30 20 2 30 31 10 30 17 5 30 27 0 30 21 15 -0.06 -120 0 0 30 15 59 8 50 2.2 77 265 -76 30 20 5 30 11 53 30 23 2 30 8 56 30 18 52 30 13 6 -0.06 -119 0 0 30 7 26 8 49 54.1 76 266 -75 30 11 32 30 3 20 30 14 30 30 0 23 30 10 19 30 4 33 -0.06 -118 0 0 29 58 29 8 49 45.9 75 268 -75 30 2 35 29 54 23 30 5 33 29 51 25 30 1 22 29 55 36 -0.06 -117 0 0 29 49 7 8 49 37.8 74 269 -74 29 53 14 29 45 1 29 56 12 29 42 3 29 52 1 29 46 14 -0.06 -116 0 0 29 39 21 8 49 29.7 74 270 -73 29 43 28 29 35 14 29 46 26 29 32 16 29 42 15 29 36 27 -0.06 -115 0 0 29 29 10 8 49 21.6 73 271 -72 29 33 18 29 25 3 29 36 16 29 22 5 29 32 4 29 26 16 -0.06 -114 0 0 29 18 35 8 49 13.5 72 272 -72 29 22 43 29 14 27 29 25 41 29 11 29 29 21 29 29 15 41 -0.06 -113 0 0 29 7 35 8 49 5.4 71 273 -71 29 11 43 29 3 27 29 14 42 29 0 28 29 10 30 29 4 41 -0.06 -112 0 0 28 56 10 8 48 57.4 70 274 -70 29 0 19 28 52 2 29 3 18 28 49 3 28 59 5 28 53 16 -0.06 -111 0 0 28 44 21 8 48 49.3 69 275 -69 28 48 30 28 40 12 28 51 29 28 37 13 28 47 16 28 41 26 -0.06 -110 0 0 28 32 7 8 48 41.3 69 275 -69 28 36 16 28 27 58 28 39 16 28 24 58 28 35 2 28 29 12 -0.05 -109 0 0 28 19 28 8 48 33.3 68 276 -68 28 23 38 28 15 19 28 26 38 28 12 18 28 22 24 28 16 33 -0.05 -108 0 0 28 6 24 8 48 25.3 67 277 -67 28 10 34 28 2 14 28 13 35 27 59 14 28 9 20 28 3 28 -0.05 -107 0 0 27 52 56 8 48 17.3 66 278 -66 27 57 6 27 48 45 28 0 7 27 45 44 27 55 52 27 49 59 -0.05 -106 0 0 27 39 2 8 48 9.4 65 278 -65 27 43 13 27 34 51 27 46 14 27 31 50 27 41 59 27 36 6 -0.05 -105 0 0 27 24 44 8 48 1.4 64 279 -64 27 28 55 27 20 32 27 31 56 27 17 31 27 27 40 27 21 47 -0.05 -104 0 0 27 10 0 8 47 53.5 63 280 -64 27 14 12 27 5 48 27 17 14 27 2 47 27 12 57 27 7 3 -0.05 -103 0 0 26 54 52 8 47 45.6 62 280 -63 26 59 4 26 50 39 27 2 6 26 47 37 26 57 49 26 51 54 -0.05 -102 0 0 26 39 18 8 47 37.8 62 281 -62 26 43 31 26 35 6 26 46 33 26 32 3 26 42 16 26 36 20 -0.05 -101 0 0 26 23 20 8 47 30.0 61 281 -61 26 27 33 26 19 7 26 30 36 26 16 4 26 26 18 26 20 22 -0.05 -100 0 0 26 6 56 8 47 22.2 60 282 -60 26 11 10 26 2 43 26 14 13 25 59 40 26 9 55 26 3 58 -0.05 - 99 0 0 25 50 8 8 47 14.4 59 283 -59 25 54 22 25 45 54 25 57 26 25 42 50 25 53 7 25 47 9 -0.05 - 98 0 0 25 32 55 8 47 6.7 58 283 -58 25 37 9 25 28 40 25 40 13 25 25 36 25 35 54 25 29 55 -0.05 - 97 0 0 25 15 16 8 46 59.1 57 284 -57 25 19 32 25 11 1 25 22 36 25 7 57 25 18 16 25 12 17 -0.05 - 96 0 0 24 57 13 8 46 51.4 56 284 -57 25 1 29 24 52 57 25 4 33 24 49 53 25 0 13 24 54 13 -0.05 - 95 0 0 24 38 45 8 46 43.8 55 285 -56 24 43 1 24 34 29 24 46 6 24 31 24 24 41 45 24 35 45 -0.05 - 94 0 0 24 19 52 8 46 36.3 54 285 -55 24 24 9 24 15 35 24 27 14 24 12 30 24 22 53 24 16 51 -0.05 - 93 0 0 24 0 34 8 46 28.8 53 286 -54 24 4 51 23 56 17 24 7 57 23 53 11 24 3 35 23 57 33 -0.05 - 92 0 0 23 40 51 8 46 21.4 52 286 -53 23 45 9 23 36 34 23 48 16 23 33 27 23 43 53 23 37 50 -0.05 - 91 0 0 23 20 44 8 46 14.0 51 287 -52 23 25 3 23 16 26 23 28 9 23 13 19 23 23 46 23 17 42 -0.05 - 90 0 0 23 0 13 8 46 6.7 50 287 -51 23 4 32 22 55 54 23 7 39 22 52 47 23 3 15 22 57 10 -0.05 - 89 0 0 22 39 16 8 45 59.5 49 288 -50 22 43 36 22 34 57 22 46 43 22 31 49 22 42 19 22 36 14 -0.05 - 88 0 0 22 17 56 8 45 52.3 49 288 -49 22 22 16 22 13 36 22 25 24 22 10 28 22 20 59 22 14 53 -0.05 - 87 0 0 21 56 11 8 45 45.2 48 288 -48 22 0 32 21 51 51 22 3 40 21 48 42 21 59 15 21 53 8 -0.05 - 86 0 0 21 34 2 8 45 38.2 47 289 -47 21 38 24 21 29 41 21 41 32 21 26 33 21 37 6 21 30 59 -0.05 - 85 0 0 21 11 30 8 45 31.2 46 289 -46 21 15 52 21 7 8 21 19 1 21 3 59 21 14 34 21 8 26 -0.05 - 84 0 0 20 48 34 8 45 24.4 45 290 -45 20 52 56 20 44 11 20 56 5 20 41 2 20 51 38 20 45 29 -0.05 - 83 0 0 20 25 14 8 45 17.6 44 290 -44 20 29 37 20 20 51 20 32 46 20 17 41 20 28 19 20 22 9 -0.05 - 82 0 0 20 1 31 8 45 10.9 43 290 -43 20 5 54 19 57 7 20 9 4 19 53 57 20 4 36 19 58 25 -0.05 - 81 0 0 19 37 24 8 45 4.3 42 291 -42 19 41 48 19 33 0 19 44 59 19 29 50 19 40 30 19 34 19 -0.05 - 80 0 0 19 12 55 8 44 57.7 41 291 -41 19 17 20 19 8 31 19 20 31 19 5 20 19 16 1 19 9 49 -0.05 - 79 0 0 18 48 4 8 44 51.3 40 292 -40 18 52 29 18 43 39 18 55 40 18 40 28 18 51 10 18 44 57 -0.05 - 78 0 0 18 22 50 8 44 45.0 39 292 -39 18 27 16 18 18 24 18 30 27 18 15 13 18 25 57 18 19 43 -0.05 - 77 0 0 17 57 14 8 44 38.8 38 292 -38 18 1 40 17 52 48 18 4 52 17 49 36 18 0 21 17 54 7 -0.05 - 76 0 0 17 31 17 8 44 32.7 37 293 -37 17 35 43 17 26 50 17 38 56 17 23 38 17 34 24 17 28 9 -0.05 - 75 0 0 17 4 58 8 44 26.8 36 293 -36 17 9 25 17 0 31 17 12 38 16 57 18 17 8 6 17 1 50 -0.05 - 74 0 0 16 38 18 8 44 20.9 35 293 -35 16 42 46 16 33 51 16 45 59 16 30 38 16 41 27 16 35 10 -0.05 - 73 0 0 16 11 18 8 44 15.2 33 293 -34 16 15 46 16 6 50 16 19 0 16 3 37 16 14 27 16 8 10 -0.05 - 72 0 0 15 43 58 8 44 9.6 32 294 -33 15 48 27 15 39 29 15 51 41 15 36 16 15 47 7 15 40 49 -0.05 - 71 0 0 15 16 18 8 44 4.1 31 294 -32 15 20 47 15 11 49 15 24 1 15 8 35 15 19 27 15 13 9 -0.05 - 70 0 0 14 48 19 8 43 58.8 30 294 -31 14 52 49 14 43 49 14 56 3 14 40 35 14 51 29 14 45 9 -0.05 - 69 0 0 14 20 1 8 43 53.6 29 295 -30 14 24 31 14 15 31 14 27 46 14 12 16 14 23 11 14 16 51 -0.05 - 68 0 0 13 51 25 8 43 48.6 28 295 -29 13 55 55 13 46 55 13 59 11 13 43 39 13 54 35 13 48 15 -0.05 - 67 0 0 13 22 31 8 43 43.7 27 295 -28 13 27 2 13 18 0 13 30 18 13 14 45 13 25 42 13 19 21 -0.05 - 66 0 0 12 53 20 8 43 38.9 26 295 -27 12 57 52 12 48 49 13 1 7 12 45 33 12 56 31 12 50 9 -0.05 - 65 0 0 12 23 53 8 43 34.4 25 296 -26 12 28 24 12 19 21 12 31 41 12 16 5 12 27 4 12 20 42 -0.05 - 64 0 0 11 54 9 8 43 29.9 24 296 -25 11 58 41 11 49 37 12 1 58 11 46 21 11 57 21 11 50 58 -0.05 - 63 0 0 11 24 11 8 43 25.7 23 296 -24 11 28 43 11 19 38 11 32 0 11 16 22 11 27 22 11 20 59 -0.05 - 62 0 0 10 53 57 8 43 21.6 22 296 -23 10 58 30 10 49 24 11 1 47 10 46 7 10 57 9 10 50 45 -0.05 - 61 0 0 10 23 30 8 43 17.7 21 296 -22 10 28 3 10 18 56 10 31 20 10 15 39 10 26 42 10 20 17 -0.05 - 60 0 0 9 52 49 8 43 14.0 20 297 -21 9 57 22 9 48 15 10 0 40 9 44 58 9 56 1 9 49 36 -0.05 - 59 0 0 9 21 55 8 43 10.5 18 297 -19 9 26 29 9 17 22 9 29 47 9 14 4 9 25 8 9 18 43 -0.05 - 58 0 0 8 50 50 8 43 7.1 17 297 -18 8 55 24 8 46 16 8 58 42 8 42 58 8 54 3 8 47 37 -0.05 - 57 0 0 8 19 33 8 43 4.0 16 297 -17 8 24 8 8 14 59 8 27 26 8 11 41 8 22 46 8 16 20 -0.05 - 56 0 0 7 48 7 8 43 1.0 15 297 -16 7 52 41 7 43 32 7 55 59 7 40 14 7 51 20 7 44 53 -0.05 - 55 0 0 7 16 30 8 42 58.2 14 297 -15 7 21 5 7 11 55 7 24 23 7 8 37 7 19 43 7 13 17 -0.05 - 54 0 0 6 44 45 8 42 55.7 13 297 -14 6 49 20 6 40 10 6 52 38 6 36 52 6 47 58 6 41 32 -0.05 - 53 0 0 6 12 52 8 42 53.3 12 298 -13 6 17 27 6 8 17 6 20 46 6 4 58 6 16 5 6 9 38 -0.05 - 52 0 0 5 40 52 8 42 51.1 11 298 -12 5 45 27 5 36 16 5 48 46 5 32 58 5 44 5 5 37 38 -0.05 - 51 0 0 5 8 45 8 42 49.2 10 298 -11 5 13 21 5 4 10 5 16 39 5 0 51 5 11 59 5 5 32 -0.06 - 50 0 0 4 36 34 8 42 47.4 8 298 -9 4 41 9 4 31 58 4 44 28 4 28 39 4 39 47 4 33 20 -0.06 - 49 0 0 4 4 17 8 42 45.9 7 298 -8 4 8 53 3 59 42 4 12 12 3 56 23 4 7 31 4 1 4 -0.06 - 48 0 0 3 31 58 8 42 44.6 6 298 -7 3 36 33 3 27 22 3 39 52 3 24 3 3 35 12 3 28 44 -0.07 - 47 0 0 2 59 35 8 42 43.5 5 298 -6 3 4 11 2 55 0 3 7 30 2 51 41 3 2 49 2 56 21 -0.07 - 46 0 0 2 27 11 8 42 42.6 4 298 -5 2 31 47 2 22 35 2 35 6 2 19 16 2 30 25 2 23 57 -0.08 - 45 0 0 1 54 46 8 42 42.0 3 298 -4 1 59 22 1 50 11 2 2 41 1 46 52 1 58 0 1 51 32 -0.10 - 44 0 0 1 22 21 8 42 41.5 2 298 -3 1 26 57 1 17 46 1 30 16 1 14 27 1 25 35 1 19 8 -0.14 - 43 0 0 0 49 58 8 42 41.3 1 298 -2 0 54 33 0 45 22 0 57 52 0 42 3 0 53 12 0 46 44 -0.36 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: G053547.1+280950 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 35 47.0694 DE: +28 09 49.649 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 35 47.0694 DE: +28 09 49.649 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.700,0.500) * V mag [mag]: 12.0 * B mag [mag]: 15.0 * Diameter [mas]: 2.20 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1757) Porvoo asteroid class: approx. diameter [km]: 13 approx. diameter ["]: 0.012 distance from Earth [AU]: 1.40270 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#51 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): 0.023", 0.004", 83.823° remarks: * orbital elements for (1757)Porvoo : Mean anomaly = 270.9425082021 deg Arg. of pericenter = 148.9889448598 deg Long. of node = 39.3711147553 deg Inclination = 3.9704869713 deg Eccentricity = 0.1249463640 Semimajor axis = 2.3529145946 AU Perihelion dist = 2.0589264712 AU Mag: H = 13.50, G = 0.15 Epoch of elements : MJD 60661.36949208 TDT (2024 Dec 17.3695) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#512023Apr24,1.32,2024,12,17,8.867780,0.002577,0.056552,-6.380248,0.290942,0.000096,-0.000485,0.000001,0.000000 -135.1494,28.1805,46.05,-23.38,False G053547.1+280950,5.59640817,28.1637914,15.03,11.96,10.30,2.2,4,,5.62307896,28.1805344,4.42,5.62,0,0,0 1757,Porvoo,16.36,14.911,1.4027,0,0,-3.025,1.82,,1.0,0 0,270.8416,2024,12,17,148.9889,39.3711,3.9705,0.12495,2.35291,2.05893,13.50,5.0,0.15 1.361,0.0227,0.0040,84,0.0053,Known errors,1.01,0,-1,-1 20241217_280950,60140.74 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:50 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org