IOTA/IOTA-ES occultation update for (2826) Ahti / HIP 58521 event on 2023 Feb 24, 10:27 UT Visible from USA, Canada Summary ------- On 2023 Feb 24 UT, the 40.2 km diameter asteroid (2826) Ahti will occult a 8.6 mag star in the constellation Coma Berenices for observers along a path across USA, Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 7.22 mag to 15.82 mag (the magnitude of the asteroid) for at most 3.450 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: 2023 Feb 24, 10:19 - 2023 Feb 24, 10:34 * geocentric midpoint of event [JD]: 2459999.93527650 * magnitude of target star: 8.60 * magnitude drop [mag]: 7.22 * estimated maximum duration [s]: 3.450 * Moon: 22 % sunlit, 139° distance * Sun: 156° distance * rough path description: USA, Canada The occultation path -------------------- * approximate projected width [km]: 51 * 1 sigma uncertainty interval [path widths]: +/- 0.30 * 1 sigma uncertainty interval [seconds]: +/- 3.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.023, +/- 0.016) * 1 sigma uncertainty ellipse (major, minor, PA): (0.028", 0.002", 126°) * approx speed of asteroid's shadow [km/s]: 11.6569 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of HIP 58521 by 2826 Ahti on 2023 Feb 24 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 112 0 0 53 53 55 10 33 57.3 0 59 -6 54 9 57 .. .. .. 54 19 38 .. .. .. .... 113 0 0 54 15 5 10 33 57.3 1 60 -7 54 31 5 53 59 10 54 40 44 53 49 38 -0.66 114 0 0 54 35 51 10 33 57.1 1 61 -7 54 51 47 54 19 58 55 1 24 54 10 27 -0.72 115 0 0 54 56 11 10 33 56.8 2 62 -8 55 12 5 54 40 22 55 21 40 54 30 52 -0.73 116 0 0 55 16 7 10 33 56.5 3 62 -8 55 31 57 55 0 20 55 41 31 54 50 52 -0.74 117 0 0 55 35 38 10 33 56.0 3 63 -9 55 51 25 55 19 54 56 0 57 55 10 28 -0.75 118 0 0 55 54 44 10 33 55.5 4 64 -10 56 10 29 55 39 3 56 19 59 55 29 39 -0.75 119 0 0 56 13 26 10 33 54.9 5 65 -10 56 29 8 55 57 48 56 38 36 55 48 25 -0.76 120 0 0 56 31 43 10 33 54.2 5 66 -11 56 47 22 56 16 8 56 56 49 56 6 48 -0.76 121 0 0 56 49 37 10 33 53.5 6 66 -11 57 5 13 56 34 5 57 14 38 56 24 46 -0.76 122 0 0 57 7 6 10 33 52.6 7 67 -12 57 22 39 56 51 37 57 32 2 56 42 20 -0.76 123 0 0 57 24 12 10 33 51.7 7 68 -12 57 39 42 57 8 46 57 49 3 56 59 30 -0.76 124 0 0 57 40 54 10 33 50.8 8 69 -13 57 56 21 57 25 31 58 5 40 57 16 17 -0.76 125 0 0 57 57 12 10 33 49.8 8 70 -13 58 12 36 57 41 52 58 21 54 57 32 40 -0.76 126 0 0 58 13 8 10 33 48.7 9 71 -14 58 28 28 57 57 51 58 37 44 57 48 40 -0.77 127 0 0 58 28 40 10 33 47.5 10 72 -14 58 43 58 58 13 26 58 53 12 58 4 17 -0.77 128 0 0 58 43 49 10 33 46.3 10 72 -15 58 59 4 58 28 38 59 8 16 58 19 32 -0.77 129 0 0 58 58 36 10 33 45.0 11 73 -15 59 13 48 58 43 28 59 22 58 58 34 23 -0.77 130 0 0 59 13 1 10 33 43.7 11 74 -16 59 28 9 58 57 55 59 37 18 58 48 52 -0.77 131 0 0 59 27 3 10 33 42.4 12 75 -16 59 42 9 59 12 1 59 51 15 59 2 59 -0.77 132 0 0 59 40 43 10 33 40.9 12 76 -17 59 55 46 59 25 44 60 4 51 59 16 44 -0.77 133 0 0 59 54 2 10 33 39.5 13 77 -17 60 9 2 59 39 5 60 18 5 59 30 8 -0.77 134 0 0 60 6 59 10 33 38.0 13 78 -18 60 21 56 59 52 6 60 30 58 59 43 9 -0.77 135 0 0 60 19 35 10 33 36.4 14 79 -18 60 34 30 60 4 44 60 43 29 59 55 50 -0.77 136 0 0 60 31 50 10 33 34.8 14 79 -19 60 46 42 60 17 2 60 55 40 60 8 9 -0.77 137 0 0 60 43 45 10 33 33.2 15 80 -19 60 58 34 60 28 59 61 7 30 60 20 8 -0.77 138 0 0 60 55 19 10 33 31.5 15 81 -19 61 10 5 60 40 36 61 18 59 60 31 46 -0.77 139 0 0 61 6 32 10 33 29.8 16 82 -20 61 21 15 60 51 52 61 30 9 60 43 4 -0.77 140 0 0 61 17 26 10 33 28.1 16 83 -20 61 32 6 61 2 48 61 40 58 60 54 2 -0.77 141 0 0 61 27 59 10 33 26.3 17 84 -21 61 42 38 61 13 24 61 51 27 61 4 39 -0.77 142 0 0 61 38 13 10 33 24.4 17 85 -21 61 52 49 61 23 41 62 1 37 61 14 57 -0.77 143 0 0 61 48 8 10 33 22.6 18 86 -21 62 2 41 61 33 38 62 11 28 61 24 56 -0.77 144 0 0 61 57 44 10 33 20.7 18 87 -22 62 12 15 61 43 16 62 21 0 61 34 36 -0.77 145 0 0 62 7 1 10 33 18.8 19 88 -22 62 21 29 61 52 35 62 30 13 61 43 56 -0.77 146 0 0 62 15 59 10 33 16.8 19 88 -22 62 30 25 62 1 36 62 39 7 61 52 58 -0.77 147 0 0 62 24 38 10 33 14.9 20 89 -23 62 39 2 62 10 17 62 47 43 62 1 41 -0.78 148 0 0 62 33 0 10 33 12.9 20 90 -23 62 47 21 62 18 41 62 56 1 62 10 6 -0.78 149 0 0 62 41 3 10 33 10.8 21 91 -24 62 55 22 62 26 46 63 4 1 62 18 12 -0.78 150 0 0 62 48 48 10 33 8.8 21 92 -24 63 3 5 62 34 33 63 11 43 62 26 1 -0.78 151 0 0 62 56 16 10 33 6.7 22 93 -24 63 10 31 62 42 3 63 19 7 62 33 31 -0.78 152 0 0 63 3 26 10 33 4.5 22 94 -25 63 17 39 62 49 15 63 26 14 62 40 44 -0.78 153 0 0 63 10 18 10 33 2.4 23 95 -25 63 24 30 62 56 9 63 33 4 62 47 40 -0.78 154 0 0 63 16 54 10 33 0.2 23 96 -25 63 31 4 63 2 47 63 39 36 62 54 18 -0.78 155 0 0 63 23 12 10 32 58.0 23 97 -26 63 37 20 63 9 7 63 45 52 63 0 40 -0.78 156 0 0 63 29 14 10 32 55.8 24 98 -26 63 43 20 63 15 10 63 51 51 63 6 44 -0.78 157 0 0 63 34 59 10 32 53.6 24 99 -26 63 49 4 63 20 57 63 57 33 63 12 31 -0.78 158 0 0 63 40 27 10 32 51.3 25 100 -26 63 54 31 63 26 27 64 2 59 63 18 2 -0.78 159 0 0 63 45 39 10 32 49.0 25 101 -27 63 59 41 63 31 40 64 8 9 63 23 17 -0.78 160 0 0 63 50 35 10 32 46.7 25 102 -27 64 4 35 63 36 37 64 13 2 63 28 15 -0.78 161 0 0 63 55 15 10 32 44.3 26 103 -27 64 9 14 63 41 18 64 17 40 63 32 56 -0.78 162 0 0 63 59 38 10 32 42.0 26 104 -28 64 13 36 63 45 43 64 22 2 63 37 22 -0.78 163 0 0 64 3 46 10 32 39.6 27 105 -28 64 17 43 63 49 52 64 26 7 63 41 31 -0.78 164 0 0 64 7 38 10 32 37.1 27 106 -28 64 21 34 63 53 45 64 29 58 63 45 25 -0.78 165 0 0 64 11 14 10 32 34.7 28 107 -28 64 25 9 63 57 22 64 33 32 63 49 3 -0.78 166 0 0 64 14 35 10 32 32.2 28 108 -29 64 28 29 64 0 44 64 36 51 63 52 25 -0.78 167 0 0 64 17 40 10 32 29.8 28 109 -29 64 31 33 64 3 50 64 39 55 63 55 32 -0.78 168 0 0 64 20 30 10 32 27.2 29 110 -29 64 34 22 64 6 41 64 42 44 63 58 23 -0.78 169 0 0 64 23 4 10 32 24.7 29 111 -30 64 36 56 64 9 16 64 45 17 64 0 58 -0.78 170 0 0 64 25 24 10 32 22.1 29 112 -30 64 39 14 64 11 36 64 47 35 64 3 19 -0.78 171 0 0 64 27 28 10 32 19.6 30 113 -30 64 41 18 64 13 40 64 49 39 64 5 24 -0.78 172 0 0 64 29 17 10 32 16.9 30 114 -30 64 43 6 64 15 30 64 51 27 64 7 13 -0.78 173 0 0 64 30 51 10 32 14.3 31 115 -31 64 44 40 64 17 4 64 53 0 64 8 48 -0.78 174 0 0 64 32 9 10 32 11.6 31 116 -31 64 45 58 64 18 23 64 54 18 64 10 7 -0.78 175 0 0 64 33 13 10 32 9.0 31 117 -31 64 47 2 64 19 27 64 55 22 64 11 12 -0.78 176 0 0 64 34 2 10 32 6.2 32 118 -31 64 47 51 64 20 17 64 56 10 64 12 1 -0.78 177 0 0 64 34 36 10 32 3.5 32 119 -31 64 48 25 64 20 51 64 56 44 64 12 35 -0.78 178 0 0 64 34 55 10 32 0.7 32 120 -32 64 48 44 64 21 10 64 57 3 64 12 54 -0.78 179 0 0 64 35 0 10 31 57.9 33 121 -32 64 48 48 64 21 14 64 57 7 64 12 58 -0.78 -180 0 0 64 34 49 10 31 55.1 33 122 -32 64 48 37 64 21 3 64 56 57 64 12 48 -0.78 -179 0 0 64 34 23 10 31 52.3 34 123 -32 64 48 12 64 20 37 64 56 32 64 12 22 -0.78 -178 0 0 64 33 43 10 31 49.4 34 124 -33 64 47 32 64 19 57 64 55 52 64 11 41 -0.78 -177 0 0 64 32 47 10 31 46.5 34 125 -33 64 46 37 64 19 1 64 54 57 64 10 45 -0.78 -176 0 0 64 31 37 10 31 43.5 35 126 -33 64 45 27 64 17 50 64 53 47 64 9 34 -0.78 -175 0 0 64 30 12 10 31 40.6 35 127 -33 64 44 2 64 16 24 64 52 23 64 8 8 -0.78 -174 0 0 64 28 32 10 31 37.6 35 128 -33 64 42 22 64 14 44 64 50 43 64 6 27 -0.78 -173 0 0 64 26 36 10 31 34.6 36 129 -34 64 40 28 64 12 48 64 48 49 64 4 30 -0.78 -172 0 0 64 24 26 10 31 31.5 36 130 -34 64 38 18 64 10 37 64 46 40 64 2 19 -0.78 -171 0 0 64 22 1 10 31 28.4 36 131 -34 64 35 54 64 8 11 64 44 16 63 59 52 -0.78 -170 0 0 64 19 20 10 31 25.3 37 132 -34 64 33 14 64 5 29 64 41 37 63 57 10 -0.78 -169 0 0 64 16 24 10 31 22.1 37 133 -34 64 30 19 64 2 32 64 38 43 63 54 13 -0.79 -168 0 0 64 13 13 10 31 18.9 37 134 -34 64 27 9 63 59 20 64 35 33 63 51 0 -0.79 -167 0 0 64 9 47 10 31 15.7 38 135 -35 64 23 44 63 55 53 64 32 8 63 47 32 -0.79 -166 0 0 64 6 5 10 31 12.4 38 137 -35 64 20 3 63 52 10 64 28 28 63 43 48 -0.79 -165 0 0 64 2 7 10 31 9.1 38 138 -35 64 16 7 63 48 11 64 24 33 63 39 49 -0.79 -164 0 0 63 57 54 10 31 5.8 39 139 -35 64 11 55 63 43 57 64 20 22 63 35 34 -0.79 -163 0 0 63 53 26 10 31 2.4 39 140 -35 64 7 27 63 39 26 64 15 55 63 31 3 -0.79 -162 0 0 63 48 41 10 30 59.0 39 141 -35 64 2 44 63 34 40 64 11 13 63 26 16 -0.79 -161 0 0 63 43 40 10 30 55.6 40 142 -36 63 57 45 63 29 38 64 6 14 63 21 13 -0.79 -160 0 0 63 38 23 10 30 52.1 40 143 -36 63 52 30 63 24 20 64 1 0 63 15 54 -0.79 -159 0 0 63 32 50 10 30 48.5 40 144 -36 63 46 58 63 18 45 63 55 30 63 10 18 -0.79 -158 0 0 63 27 1 10 30 45.0 41 146 -36 63 41 11 63 12 54 63 49 44 63 4 26 -0.79 -157 0 0 63 20 56 10 30 41.3 41 147 -36 63 35 7 63 6 47 63 43 41 62 58 18 -0.79 -156 0 0 63 14 33 10 30 37.7 41 148 -36 63 28 47 63 0 23 63 37 21 62 51 52 -0.79 -155 0 0 63 7 54 10 30 34.0 42 149 -36 63 22 10 62 53 42 63 30 45 62 45 10 -0.79 -154 0 0 63 0 58 10 30 30.2 42 150 -37 63 15 16 62 46 44 63 23 53 62 38 11 -0.79 -153 0 0 62 53 45 10 30 26.4 42 151 -37 63 8 5 62 39 29 63 16 43 62 30 55 -0.79 -152 0 0 62 46 15 10 30 22.5 43 153 -37 63 0 37 62 31 57 63 9 16 62 23 22 -0.79 -151 0 0 62 38 28 10 30 18.6 43 154 -37 62 52 51 62 24 7 63 1 32 62 15 31 -0.79 -150 0 0 62 30 23 10 30 14.7 43 155 -37 62 44 49 62 16 0 62 53 31 62 7 23 -0.79 -149 0 0 62 22 0 10 30 10.7 44 156 -37 62 36 28 62 7 35 62 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53 10 29 13.6 48 173 -38 60 19 54 59 49 55 60 28 58 59 40 56 -0.79 -135 0 0 59 52 3 10 29 8.7 48 174 -38 60 7 7 59 37 2 60 16 13 59 28 2 -0.79 -134 0 0 59 38 53 10 29 3.9 48 176 -38 59 54 0 59 23 49 60 3 7 59 14 47 -0.79 -133 0 0 59 25 22 10 28 58.9 48 177 -38 59 40 32 59 10 15 59 49 41 59 1 12 -0.79 -132 0 0 59 11 30 10 28 53.9 49 178 -38 59 26 43 58 56 21 59 35 53 58 47 15 -0.79 -131 0 0 58 57 17 10 28 48.8 49 180 -38 59 12 33 58 42 5 59 21 45 58 32 58 -0.79 -130 0 0 58 42 43 10 28 43.6 49 181 -38 58 58 1 58 27 28 59 7 16 58 18 19 -0.79 -129 0 0 58 27 47 10 28 38.4 49 183 -38 58 43 9 58 12 30 58 52 25 58 3 19 -0.79 -128 0 0 58 12 30 10 28 33.1 50 184 -37 58 27 54 57 57 10 58 37 12 57 47 58 -0.79 -127 0 0 57 56 51 10 28 27.7 50 186 -37 58 12 19 57 41 28 58 21 38 57 32 14 -0.79 -126 0 0 57 40 51 10 28 22.2 50 187 -37 57 56 21 57 25 25 58 5 42 57 16 9 -0.79 -125 0 0 57 24 28 10 28 16.7 50 189 -37 57 40 1 57 8 59 57 49 24 56 59 42 -0.79 -124 0 0 57 7 43 10 28 11.1 50 190 -37 57 23 19 56 52 11 57 32 44 56 42 53 -0.79 -123 0 0 56 50 36 10 28 5.5 51 192 -37 57 6 15 56 35 2 57 15 41 56 25 41 -0.79 -122 0 0 56 33 7 10 27 59.7 51 193 -37 56 48 48 56 17 29 56 58 16 56 8 7 -0.79 -121 0 0 56 15 15 10 27 53.9 51 195 -37 56 30 59 55 59 35 56 40 28 55 50 11 -0.79 -120 0 0 55 57 0 10 27 48.0 51 196 -37 56 12 47 55 41 17 56 22 18 55 31 52 -0.79 -119 0 0 55 38 23 10 27 42.0 51 198 -36 55 54 12 55 22 37 56 3 45 55 13 11 -0.79 -118 0 0 55 19 23 10 27 36.0 51 200 -36 55 35 15 55 3 35 55 44 50 54 54 6 -0.79 -117 0 0 55 0 0 10 27 29.9 51 201 -36 55 15 55 54 44 10 55 25 31 54 34 40 -0.79 -116 0 0 54 40 15 10 27 23.7 51 203 -36 54 56 12 54 24 22 55 5 50 54 14 50 -0.79 -115 0 0 54 20 7 10 27 17.4 52 204 -36 54 36 6 54 4 11 54 45 46 53 54 38 -0.79 -114 0 0 53 59 36 10 27 11.0 52 206 -36 54 15 38 53 43 38 54 25 19 53 34 3 -0.79 -113 0 0 53 38 42 10 27 4.6 52 208 -35 53 54 47 53 22 42 54 4 29 53 13 6 -0.79 -112 0 0 53 17 26 10 26 58.1 52 209 -35 53 33 33 53 1 23 53 43 16 52 51 46 -0.79 -111 0 0 52 55 47 10 26 51.6 52 211 -35 53 11 56 52 39 42 53 21 41 52 30 4 -0.79 -110 0 0 52 33 45 10 26 44.9 52 213 -35 52 49 57 52 17 39 52 59 43 52 7 59 -0.79 -109 0 0 52 11 22 10 26 38.2 52 214 -34 52 27 35 51 55 13 52 37 23 51 45 32 -0.79 -108 0 0 51 48 36 10 26 31.5 52 216 -34 52 4 51 51 32 25 52 14 40 51 22 42 -0.79 -107 0 0 51 25 27 10 26 24.6 52 218 -34 51 41 45 51 9 15 51 51 35 50 59 31 -0.79 -106 0 0 51 1 57 10 26 17.7 52 219 -33 51 18 16 50 45 43 51 28 8 50 35 59 -0.79 -105 0 0 50 38 6 10 26 10.8 51 221 -33 50 54 26 50 21 49 51 4 19 50 12 4 -0.79 -104 0 0 50 13 53 10 26 3.7 51 223 -33 50 30 15 49 57 35 50 40 8 49 47 49 -0.79 -103 0 0 49 49 18 10 25 56.6 51 224 -32 50 5 42 49 32 59 50 15 36 49 23 12 -0.79 -102 0 0 49 24 23 10 25 49.5 51 226 -32 49 40 49 49 8 3 49 50 44 48 58 15 -0.79 -101 0 0 48 59 8 10 25 42.3 51 228 -31 49 15 34 48 42 46 49 25 30 48 32 57 -0.79 -100 0 0 48 33 32 10 25 35.0 51 229 -31 48 50 0 48 17 9 48 59 56 48 7 20 -0.79 - 99 0 0 48 7 37 10 25 27.7 51 231 -31 48 24 6 47 51 12 48 34 3 47 41 22 -0.79 - 98 0 0 47 41 22 10 25 20.4 50 232 -30 47 57 52 47 24 57 48 7 49 47 15 6 -0.79 - 97 0 0 47 14 48 10 25 13.0 50 234 -30 47 31 19 46 58 22 47 41 17 46 48 31 -0.79 - 96 0 0 46 47 56 10 25 5.6 50 236 -29 47 4 28 46 31 29 47 14 26 46 21 38 -0.79 - 95 0 0 46 20 46 10 24 58.1 49 237 -29 46 37 18 46 4 19 46 47 17 45 54 27 -0.78 - 94 0 0 45 53 19 10 24 50.6 49 239 -28 46 9 51 45 36 51 46 19 50 45 26 59 -0.78 - 93 0 0 45 25 34 10 24 43.1 49 240 -28 45 42 7 45 9 6 45 52 7 44 59 14 -0.78 - 92 0 0 44 57 34 10 24 35.6 48 242 -27 45 14 7 44 41 5 45 24 7 44 31 13 -0.78 - 91 0 0 44 29 18 10 24 28.0 48 243 -27 44 45 51 44 12 49 44 55 51 44 2 57 -0.78 - 90 0 0 44 0 47 10 24 20.4 48 245 -26 44 17 20 43 44 18 44 27 20 43 34 25 -0.78 - 89 0 0 43 32 1 10 24 12.8 47 246 -25 43 48 34 43 15 33 43 58 34 43 5 40 -0.78 - 88 0 0 43 3 2 10 24 5.2 47 248 -25 43 19 35 42 46 34 43 29 34 42 36 41 -0.78 - 87 0 0 42 33 50 10 23 57.6 46 249 -24 42 50 22 42 17 22 43 0 22 42 7 30 -0.78 - 86 0 0 42 4 26 10 23 50.0 46 251 -24 42 20 58 41 47 58 42 30 57 41 38 6 -0.78 - 85 0 0 41 34 50 10 23 42.5 45 252 -23 41 51 21 41 18 23 42 1 20 41 8 32 -0.78 - 84 0 0 41 5 4 10 23 34.9 45 253 -22 41 21 35 40 48 38 41 31 33 40 38 47 -0.78 - 83 0 0 40 35 8 10 23 27.4 44 255 -22 40 51 38 40 18 43 41 1 35 40 8 52 -0.78 - 82 0 0 40 5 3 10 23 19.9 43 256 -21 40 21 32 39 48 38 40 31 29 39 38 48 -0.78 - 81 0 0 39 34 50 10 23 12.4 43 257 -20 39 51 17 39 18 26 40 1 14 39 8 37 -0.78 - 80 0 0 39 4 29 10 23 4.9 42 258 -20 39 20 56 38 48 7 39 30 51 38 38 18 -0.78 - 79 0 0 38 34 2 10 22 57.5 42 259 -19 38 50 27 38 17 41 39 0 22 38 7 53 -0.78 - 78 0 0 38 3 30 10 22 50.2 41 261 -18 38 19 54 37 47 10 38 29 48 37 37 23 -0.78 - 77 0 0 37 32 53 10 22 42.9 40 262 -17 37 49 15 37 16 35 37 59 8 37 6 48 -0.78 - 76 0 0 37 2 12 10 22 35.7 40 263 -17 37 18 33 36 45 56 37 28 25 36 36 10 -0.78 - 75 0 0 36 31 29 10 22 28.5 39 264 -16 36 47 48 36 15 14 36 57 39 36 5 29 -0.78 - 74 0 0 36 0 43 10 22 21.4 38 265 -15 36 17 1 35 44 30 36 26 51 35 34 47 -0.78 - 73 0 0 35 29 57 10 22 14.4 37 266 -14 35 46 12 35 13 46 35 56 1 35 4 4 -0.78 - 72 0 0 34 59 11 10 22 7.5 37 267 -13 35 15 24 34 43 1 35 25 12 34 33 20 -0.78 - 71 0 0 34 28 25 10 22 0.7 36 268 -13 34 44 37 34 12 18 34 54 23 34 2 38 -0.78 - 70 0 0 33 57 42 10 21 54.0 35 269 -12 34 13 51 33 41 37 34 23 37 33 31 58 -0.78 - 69 0 0 33 27 1 10 21 47.4 34 270 -11 33 43 9 33 10 58 33 52 52 33 1 21 -0.78 - 68 0 0 32 56 25 10 21 40.8 33 271 -10 33 12 30 32 40 24 33 22 12 32 30 48 -0.78 - 67 0 0 32 25 53 10 21 34.4 33 271 -9 32 41 55 32 9 54 32 51 36 32 0 19 -0.78 - 66 0 0 31 55 26 10 21 28.2 32 272 -8 32 11 26 31 39 30 32 21 6 31 29 57 -0.78 - 65 0 0 31 25 6 10 21 22.0 31 273 -7 31 41 4 31 9 13 31 50 42 30 59 41 -0.78 - 64 0 0 30 54 54 10 21 16.0 30 274 -7 31 10 50 30 39 3 31 20 26 30 29 32 -0.78 - 63 0 0 30 24 51 10 21 10.1 29 275 -6 30 40 43 30 9 2 30 50 19 29 59 33 -0.78 - 62 0 0 29 54 56 10 21 4.4 28 275 -5 30 10 47 29 39 10 30 20 20 29 29 43 -0.78 - 61 0 0 29 25 13 10 20 58.8 27 276 -4 29 41 0 29 9 29 29 50 32 29 0 3 -0.78 - 60 0 0 28 55 40 10 20 53.4 27 277 -3 29 11 25 28 39 59 29 20 55 28 30 34 -0.78 - 59 0 0 28 26 19 10 20 48.1 26 277 -2 28 42 1 28 10 41 28 51 30 28 1 18 -0.78 - 58 0 0 27 57 11 10 20 43.0 25 278 -1 28 12 51 27 41 36 28 22 18 27 32 14 -0.79 - 57 0 0 27 28 18 10 20 38.0 24 279 0 27 43 54 27 12 44 27 53 20 27 3 25 -0.79 - 56 0 0 26 59 38 10 20 33.2 23 279 1 27 15 12 26 44 8 27 24 36 26 34 50 -0.79 - 55 0 0 26 31 14 10 20 28.6 22 280 2 26 46 46 26 15 47 26 56 8 26 6 30 -0.79 - 54 0 0 26 3 7 10 20 24.2 21 280 3 26 18 35 25 47 42 26 27 56 25 38 27 -0.79 - 53 0 0 25 35 16 10 20 19.9 20 281 4 25 50 42 25 19 54 26 0 1 25 10 41 -0.79 - 52 0 0 25 7 44 10 20 15.9 19 281 5 25 23 7 24 52 25 25 32 24 24 43 13 -0.79 - 51 0 0 24 40 30 10 20 12.0 18 282 6 24 55 50 24 25 13 25 5 5 24 16 4 -0.79 - 50 0 0 24 13 35 10 20 8.3 17 282 7 24 28 53 23 58 22 24 38 6 23 49 13 -0.80 - 49 0 0 23 47 1 10 20 4.8 16 283 8 24 2 16 23 31 50 24 11 27 23 22 43 -0.80 - 48 0 0 23 20 47 10 20 1.5 15 283 9 23 35 59 23 5 39 23 45 9 22 56 34 -0.80 - 47 0 0 22 54 55 10 19 58.4 14 284 10 23 10 4 22 39 50 23 19 13 22 30 46 -0.80 - 46 0 0 22 29 25 10 19 55.5 13 284 11 22 44 32 22 14 22 22 53 38 22 5 21 -0.81 - 45 0 0 22 4 18 10 19 52.8 12 284 12 22 19 22 21 49 18 22 28 27 21 40 18 -0.81 - 44 0 0 21 39 35 10 19 50.4 11 285 13 21 54 35 21 24 37 22 3 39 21 15 39 -0.81 - 43 0 0 21 15 15 10 19 48.1 10 285 14 21 30 13 21 0 20 21 39 15 20 51 24 -0.82 - 42 0 0 20 51 20 10 19 46.0 9 286 15 21 6 16 20 36 28 21 15 16 20 27 33 -0.82 - 41 0 0 20 27 51 10 19 44.2 8 286 16 20 42 43 20 13 1 20 51 42 20 4 8 -0.83 - 40 0 0 20 4 47 10 19 42.5 7 286 17 20 19 37 19 50 0 20 28 34 19 41 8 -0.84 - 39 0 0 19 42 10 10 19 41.1 6 287 18 19 56 57 19 27 25 20 5 53 19 18 35 -0.85 - 38 0 0 19 19 59 10 19 39.8 5 287 19 19 34 44 19 5 17 19 43 38 18 56 28 -0.87 - 37 0 0 18 58 16 10 19 38.8 4 287 20 19 12 58 18 43 36 19 21 51 18 34 49 -0.89 - 36 0 0 18 37 1 10 19 38.0 3 288 21 18 51 41 18 22 24 19 0 32 18 13 37 -0.93 - 35 0 0 18 16 14 10 19 37.5 2 288 22 18 30 51 18 1 39 18 39 41 17 52 54 -1.01 - 34 0 0 17 55 55 10 19 37.1 1 288 23 18 10 31 17 41 23 18 19 19 17 32 40 -1.22 - 33 0 0 17 36 6 10 19 36.9 0 289 24 17 50 39 17 21 36 17 59 26 17 12 55 -3.94 Uncertainty in time = +/- 4 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: HIP 58521 * constellation : Coma Berenices * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 12 00 05.6830 DE: +17 55 12.374 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 12 00 05.6831 DE: +17 55 12.374 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 8.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2826) Ahti asteroid class: approx. diameter [km]: 40 approx. diameter ["]: 0.026 distance from Earth [AU]: 2.13760 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 date of fit: 2023 Feb 07 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): 0.028", 0.002", 125.56° remarks: * orbital elements for (2826)Ahti : Mean anomaly = 347.3226642835 deg Arg. of pericenter = 146.3834981548 deg Long. of node = 33.5911772264 deg Inclination = 15.4462494715 deg Eccentricity = 0.0493369342 Semimajor axis = 3.2239200800 AU Perihelion dist = 3.0648617470 AU Mag: H = 11.20, G = 0.15 Epoch of elements : MJD 59999.43541667 TDT (2023 Feb 24.4354) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Feb07,3.45,2023,2,24,10.446636,0.207341,0.579956,-6.194936,2.216427,-0.002272,-0.000733,0.000001,-0.000001 -130.4190,17.7895,26.61,-9.48,False HIP 58521,12.00157862,17.9201038,0.00,8.60,0.00,0.0,0,,12.02156568,17.7895189,7.23,0.00,0,0,0 2826,Ahti,15.82,40.2,2.1376,0,0,-1.785,9.12,,2.0,0 0,347.2485,2023,2,24,146.3835,33.5912,15.4462,0.04934,3.22392,3.06486,11.20,5.0,0.15 1.301,0.0280,0.0016,126,0.0078,Known errors,-1.00,-1,-1,-1 20230224__58521,59990.86 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:40 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org