IOTA/IOTA-ES occultation update for (2826) Ahti / UCAC4 655-031733 event on 2022 Jan 22, 03:02 UT Visible from Europe, E Canada, USA Summary ------- On 2022 Jan 22 UT, the 40.2 km diameter asteroid (2826) Ahti will occult a 13.4 mag star in the constellation Auriga for observers along a path across Europe, E Canada, USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.02 mag to 16.35 mag (the magnitude of the asteroid) for at most 5.260 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: 100 * date and approx. time of event: 2022 Jan 22, 02:48 - 2022 Jan 22, 03:16 * geocentric midpoint of event [JD]: 2459601.62666250 * magnitude of target star: 13.40 * magnitude drop [mag]: 3.02 * estimated maximum duration [s]: 5.260 * Moon: 84 % sunlit, 87° distance * Sun: 136° distance * rough path description: Europe, E Canada, USA The occultation path -------------------- * approximate projected width [km]: 40 * 1 sigma uncertainty interval [path widths]: +/- 0.13 * 1 sigma uncertainty interval [seconds]: +/- 3.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.002", 74°) * approx speed of asteroid's shadow [km/s]: 7.6441 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 655-031733 by 2826 Ahti on 2022 Jan 22 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 -167 0 0 -14 55 44 3 16 15.4 1 47 34 -14 40 49 -15 10 39 -14 36 49 -15 14 38 .... -166 0 0 -14 0 56 3 16 15.0 2 47 32 -13 45 57 -14 15 56 -13 41 56 -14 19 56 -0.11 -165 0 0 -13 5 22 3 16 14.0 3 47 31 -12 50 19 -13 20 26 -12 46 17 -13 24 27 -0.08 -164 0 0 -12 9 4 3 16 12.6 5 46 30 -11 53 56 -12 24 11 -11 49 54 -12 28 14 -0.07 -163 0 0 -11 12 4 3 16 10.8 6 46 29 -10 56 52 -11 27 15 -10 52 49 -11 31 18 -0.06 -162 0 0 -10 14 24 3 16 8.4 8 46 28 - 9 59 9 -10 29 38 - 9 55 4 -10 33 43 -0.06 -161 0 0 - 9 16 6 3 16 5.6 9 46 26 - 9 0 48 - 9 31 25 - 8 56 43 - 9 35 30 -0.05 -160 0 0 - 8 17 15 3 16 2.2 10 46 25 - 8 1 53 - 8 32 36 - 7 57 47 - 8 36 42 -0.05 -159 0 0 - 7 17 51 3 15 58.4 12 46 24 - 7 2 27 - 7 33 15 - 6 58 20 - 7 37 22 -0.05 -158 0 0 - 6 17 59 3 15 54.1 13 45 23 - 6 2 32 - 6 33 25 - 5 58 24 - 6 37 33 -0.05 -157 0 0 - 5 17 40 3 15 49.2 14 45 21 - 5 2 11 - 5 33 9 - 4 58 3 - 5 37 18 -0.04 -156 0 0 - 4 16 59 3 15 43.9 16 45 20 - 4 1 28 - 4 32 30 - 3 57 19 - 4 36 39 -0.04 -155 0 0 - 3 15 58 3 15 38.1 17 45 19 - 3 0 25 - 3 31 31 - 2 56 15 - 3 35 40 -0.04 -154 0 0 - 2 14 40 3 15 31.7 19 45 18 - 1 59 6 - 2 30 15 - 1 54 56 - 2 34 24 -0.04 -153 0 0 - 1 13 9 3 15 24.9 20 45 16 - 0 57 33 - 1 28 45 - 0 53 23 - 1 32 55 -0.04 -152 0 0 - 0 11 28 3 15 17.6 21 45 15 0 4 9 - 0 27 5 0 8 19 - 0 31 15 -0.04 -151 0 0 0 50 19 3 15 9.9 23 45 14 1 5 57 0 34 42 1 10 8 0 30 31 -0.04 -150 0 0 1 52 10 3 15 1.7 24 45 13 2 7 49 1 36 33 2 11 59 1 32 22 -0.04 -149 0 0 2 54 2 3 14 53.0 26 45 11 3 9 40 2 38 24 3 13 51 2 34 13 -0.04 -148 0 0 3 55 50 3 14 43.9 27 45 10 4 11 28 3 40 12 4 15 39 3 36 1 -0.04 -147 0 0 4 57 32 3 14 34.3 28 45 9 5 13 9 4 41 54 5 17 20 4 37 43 -0.04 -146 0 0 5 59 4 3 14 24.4 30 46 8 6 14 41 5 43 27 6 18 51 5 39 16 -0.04 -145 0 0 7 0 23 3 14 14.0 31 46 6 7 16 0 6 44 47 7 20 10 6 40 37 -0.04 -144 0 0 8 1 27 3 14 3.3 33 46 5 8 17 2 7 45 52 8 21 12 7 41 42 -0.04 -143 0 0 9 2 12 3 13 52.2 34 46 4 9 17 46 8 46 38 9 21 55 8 42 29 -0.04 -142 0 0 10 2 35 3 13 40.8 35 46 3 10 18 7 9 47 3 10 22 17 9 42 54 -0.04 -141 0 0 11 2 34 3 13 29.0 37 47 1 11 18 5 10 47 4 11 22 13 10 42 56 -0.04 -140 0 0 12 2 6 3 13 17.0 38 47 0 12 17 34 11 46 38 12 21 43 11 42 30 -0.04 -139 0 0 13 1 8 3 13 4.7 39 47 -1 13 16 34 12 45 43 13 20 42 12 41 35 -0.05 -138 0 0 13 59 39 3 12 52.1 41 47 -2 14 15 2 13 44 15 14 19 9 13 40 9 -0.05 -137 0 0 14 57 35 3 12 39.2 42 48 -3 15 12 56 14 42 14 15 17 2 14 38 8 -0.05 -136 0 0 15 54 54 3 12 26.1 43 48 -5 16 10 12 15 39 36 16 14 18 15 35 31 -0.05 -135 0 0 16 51 35 3 12 12.8 45 48 -6 17 6 50 16 36 20 17 10 55 16 32 16 -0.05 -134 0 0 17 47 35 3 11 59.4 46 49 -7 18 2 47 17 32 24 18 6 51 17 28 20 -0.05 -133 0 0 18 42 54 3 11 45.7 47 49 -8 18 58 2 18 27 46 19 2 5 18 23 43 -0.05 -132 0 0 19 37 28 3 11 32.0 49 50 -9 19 52 33 19 22 23 19 56 35 19 18 22 -0.05 -131 0 0 20 31 17 3 11 18.1 50 50 -10 20 46 18 20 16 16 20 50 19 20 12 15 -0.05 -130 0 0 21 24 19 3 11 4.0 51 50 -11 21 39 16 21 9 22 21 43 16 21 5 22 -0.05 -129 0 0 22 16 33 3 10 49.9 52 51 -12 22 31 27 22 1 40 22 35 26 21 57 42 -0.05 -128 0 0 23 7 59 3 10 35.7 53 51 -14 23 22 48 22 53 9 23 26 46 22 49 12 -0.05 -127 0 0 23 58 34 3 10 21.5 55 52 -15 24 13 19 23 43 49 24 17 16 23 39 52 -0.05 -126 0 0 24 48 18 3 10 7.2 56 53 -16 25 2 59 24 33 37 25 6 54 24 29 42 -0.06 -125 0 0 25 37 11 3 9 52.9 57 53 -17 25 51 47 25 22 34 25 55 42 25 18 40 -0.06 -124 0 0 26 25 11 3 9 38.5 58 54 -18 26 39 43 26 10 39 26 43 36 26 6 46 -0.06 -123 0 0 27 12 18 3 9 24.2 59 54 -19 27 26 46 26 57 51 27 30 38 26 53 59 -0.06 -122 0 0 27 58 33 3 9 9.8 60 55 -20 28 12 56 27 44 10 28 16 47 27 40 19 -0.06 -121 0 0 28 43 53 3 8 55.5 61 56 -21 28 58 12 28 29 35 29 2 2 28 25 46 -0.06 -120 0 0 29 28 20 3 8 41.2 63 57 -22 29 42 34 29 14 7 29 46 23 29 10 19 -0.06 -119 0 0 30 11 54 3 8 27.0 64 57 -23 30 26 3 29 57 45 30 29 50 29 53 58 -0.06 -118 0 0 30 54 33 3 8 12.8 65 58 -23 31 8 37 30 40 28 31 12 23 30 36 43 -0.06 -117 0 0 31 36 18 3 7 58.7 66 59 -24 31 50 18 31 22 18 31 54 2 31 18 34 -0.06 -116 0 0 32 17 9 3 7 44.7 67 60 -25 32 31 4 32 3 15 32 34 48 31 59 32 -0.06 -115 0 0 32 57 7 3 7 30.7 68 61 -26 33 10 57 32 43 17 33 14 39 32 39 35 -0.06 -114 0 0 33 36 12 3 7 16.8 69 62 -27 33 49 57 33 22 26 33 53 38 33 18 46 -0.06 -113 0 0 34 14 23 3 7 3.1 70 63 -28 34 28 4 34 0 42 34 31 43 33 57 3 -0.07 -112 0 0 34 51 41 3 6 49.4 71 64 -29 35 5 17 34 38 6 35 8 55 34 34 28 -0.07 -111 0 0 35 28 7 3 6 35.8 72 65 -29 35 41 38 35 14 36 35 45 15 35 11 0 -0.07 -110 0 0 36 3 41 3 6 22.3 73 67 -30 36 17 8 35 50 15 36 20 43 35 46 40 -0.07 -109 0 0 36 38 24 3 6 9.0 73 68 -31 36 51 45 36 25 2 36 55 20 36 21 28 -0.07 -108 0 0 37 12 15 3 5 55.7 74 69 -32 37 25 32 36 58 58 37 29 5 36 55 25 -0.07 -107 0 0 37 45 16 3 5 42.6 75 71 -33 37 58 29 37 32 4 38 2 0 37 28 32 -0.07 -106 0 0 38 17 27 3 5 29.6 76 73 -33 38 30 35 38 4 20 38 34 6 38 0 49 -0.07 -105 0 0 38 48 49 3 5 16.7 77 74 -34 39 1 52 38 35 46 39 5 22 38 32 17 -0.07 -104 0 0 39 19 22 3 5 3.9 78 76 -35 39 32 21 39 6 23 39 35 49 39 2 55 -0.07 -103 0 0 39 49 7 3 4 51.3 79 79 -35 40 2 1 39 36 13 40 5 28 39 32 46 -0.07 -102 0 0 40 18 4 3 4 38.8 79 81 -36 40 30 54 40 5 14 40 34 20 40 1 49 -0.07 -101 0 0 40 46 14 3 4 26.4 80 84 -37 40 59 0 40 33 29 41 2 25 40 30 5 -0.07 -100 0 0 41 13 39 3 4 14.1 81 87 -38 41 26 20 41 0 58 41 29 43 40 57 34 -0.08 - 99 0 0 41 40 17 3 4 2.0 81 90 -38 41 52 54 41 27 41 41 56 17 41 24 18 -0.08 - 98 0 0 42 6 11 3 3 50.0 82 94 -39 42 18 44 41 53 39 42 22 5 41 50 17 -0.08 - 97 0 0 42 31 21 3 3 38.2 83 99 -39 42 43 50 42 18 52 42 47 10 42 15 32 -0.08 - 96 0 0 42 55 47 3 3 26.4 83 105 -40 43 8 12 42 43 22 43 11 31 42 40 3 -0.08 - 95 0 0 43 19 30 3 3 14.8 84 111 -41 43 31 51 43 7 10 43 35 9 43 3 52 -0.08 - 94 0 0 43 42 31 3 3 3.3 84 118 -41 43 54 48 43 30 14 43 58 5 43 26 58 -0.09 - 93 0 0 44 4 51 3 2 51.9 84 127 -42 44 17 4 43 52 38 44 20 20 43 49 22 -0.09 - 92 0 0 44 26 29 3 2 40.7 84 137 -42 44 38 38 44 14 20 44 41 53 44 11 5 -0.09 - 91 0 0 44 47 27 3 2 29.6 85 147 -43 44 59 33 44 35 22 45 2 47 44 32 8 -0.09 - 90 0 0 45 7 46 3 2 18.5 85 158 -44 45 19 48 44 55 44 45 23 1 44 52 31 -0.09 - 89 0 0 45 27 25 3 2 7.7 84 169 -44 45 39 24 45 15 27 45 42 36 45 12 15 -0.09 - 88 0 0 45 46 26 3 1 56.9 84 178 -45 45 58 22 45 34 31 46 1 33 45 31 20 -0.09 - 87 0 0 46 4 49 3 1 46.2 84 187 -45 46 16 41 45 52 58 46 19 52 45 49 47 -0.09 - 86 0 0 46 22 35 3 1 35.7 84 194 -46 46 34 24 46 10 47 46 37 34 46 7 37 -0.09 - 85 0 0 46 39 44 3 1 25.2 83 200 -46 46 51 30 46 27 59 46 54 39 46 24 51 -0.09 - 84 0 0 46 56 18 3 1 14.9 83 206 -47 47 8 0 46 44 35 47 11 8 46 41 27 -0.09 - 83 0 0 47 12 15 3 1 4.7 82 210 -47 47 23 55 47 0 36 47 27 2 46 57 29 -0.08 - 82 0 0 47 27 38 3 0 54.5 82 214 -48 47 39 14 47 16 1 47 42 21 47 12 55 -0.08 - 81 0 0 47 42 25 3 0 44.5 81 218 -48 47 53 59 47 30 52 47 57 5 47 27 46 -0.08 - 80 0 0 47 56 39 3 0 34.6 81 221 -48 48 8 10 47 45 8 48 11 15 47 42 3 -0.08 - 79 0 0 48 10 19 3 0 24.8 80 224 -49 48 21 48 47 58 51 48 24 52 47 55 47 -0.08 - 78 0 0 48 23 27 3 0 15.0 80 226 -49 48 34 53 48 12 1 48 37 56 48 8 57 -0.08 - 77 0 0 48 36 1 3 0 5.4 79 228 -50 48 47 25 48 24 37 48 50 27 48 21 35 -0.08 - 76 0 0 48 48 3 2 59 55.9 78 230 -50 48 59 25 48 36 42 49 2 27 48 33 40 -0.08 - 75 0 0 48 59 34 2 59 46.4 78 232 -51 49 10 53 48 48 15 49 13 54 48 45 13 -0.08 - 74 0 0 49 10 33 2 59 37.0 77 234 -51 49 21 50 48 59 16 49 24 50 48 56 15 -0.08 - 73 0 0 49 21 0 2 59 27.7 77 236 -51 49 32 15 49 9 46 49 35 16 49 6 45 -0.08 - 72 0 0 49 30 58 2 59 18.5 76 238 -52 49 42 11 49 19 45 49 45 11 49 16 45 -0.08 - 71 0 0 49 40 25 2 59 9.4 75 239 -52 49 51 36 49 29 14 49 54 35 49 26 14 -0.08 - 70 0 0 49 49 22 2 59 0.3 75 241 -52 50 0 31 49 38 12 50 3 30 49 35 14 -0.08 - 69 0 0 49 57 49 2 58 51.4 74 242 -53 50 8 56 49 46 41 50 11 55 49 43 43 -0.08 - 68 0 0 50 5 47 2 58 42.5 74 243 -53 50 16 53 49 54 41 50 19 51 49 51 43 -0.08 - 67 0 0 50 13 15 2 58 33.6 73 245 -53 50 24 20 50 2 11 50 27 17 49 59 13 -0.08 - 66 0 0 50 20 15 2 58 24.8 72 246 -54 50 31 18 50 9 12 50 34 15 50 6 15 -0.08 - 65 0 0 50 26 46 2 58 16.1 72 247 -54 50 37 48 50 15 45 50 40 45 50 12 48 -0.08 - 64 0 0 50 32 49 2 58 7.5 71 248 -54 50 43 50 50 21 49 50 46 46 50 18 52 -0.08 - 63 0 0 50 38 24 2 57 58.9 71 249 -55 50 49 23 50 27 25 50 52 20 50 24 29 -0.08 - 62 0 0 50 43 31 2 57 50.4 70 250 -55 50 54 29 50 32 33 50 57 25 50 29 37 -0.08 - 61 0 0 50 48 10 2 57 42.0 69 252 -55 50 59 7 50 37 12 51 2 3 50 34 17 -0.08 - 60 0 0 50 52 21 2 57 33.6 69 253 -56 51 3 17 50 41 25 51 6 13 50 38 29 -0.08 - 59 0 0 50 56 5 2 57 25.2 68 254 -56 51 7 0 50 45 9 51 9 56 50 42 14 -0.08 - 58 0 0 50 59 21 2 57 16.9 68 255 -56 51 10 16 50 48 26 51 13 11 50 45 31 -0.08 - 57 0 0 51 2 10 2 57 8.7 67 256 -56 51 13 5 50 51 16 51 16 0 50 48 21 -0.08 - 56 0 0 51 4 32 2 57 0.5 66 257 -57 51 15 26 50 53 39 51 18 21 50 50 44 -0.08 - 55 0 0 51 6 27 2 56 52.3 66 258 -57 51 17 21 50 55 34 51 20 15 50 52 39 -0.08 - 54 0 0 51 7 55 2 56 44.2 65 259 -57 51 18 48 50 57 2 51 21 43 50 54 8 -0.08 - 53 0 0 51 8 56 2 56 36.2 65 260 -57 51 19 49 50 58 3 51 22 44 50 55 9 -0.08 - 52 0 0 51 9 30 2 56 28.2 64 261 -57 51 20 23 50 58 37 51 23 17 50 55 43 -0.08 - 51 0 0 51 9 37 2 56 20.2 63 261 -58 51 20 30 50 58 44 51 23 24 50 55 50 -0.08 - 50 0 0 51 9 17 2 56 12.3 63 262 -58 51 20 10 50 58 24 51 23 4 50 55 30 -0.08 - 49 0 0 51 8 30 2 56 4.4 62 263 -58 51 19 23 50 57 37 51 22 18 50 54 43 -0.08 - 48 0 0 51 7 16 2 55 56.5 62 264 -58 51 18 9 50 56 23 51 21 4 50 53 28 -0.07 - 47 0 0 51 5 35 2 55 48.7 61 265 -58 51 16 29 50 54 41 51 19 23 50 51 47 -0.07 - 46 0 0 51 3 27 2 55 40.9 61 266 -58 51 14 21 50 52 33 51 17 16 50 49 38 -0.07 - 45 0 0 51 0 51 2 55 33.1 60 267 -59 51 11 46 50 49 57 51 14 41 50 47 2 -0.07 - 44 0 0 50 57 48 2 55 25.4 59 268 -59 51 8 43 50 46 53 51 11 38 50 43 58 -0.07 - 43 0 0 50 54 18 2 55 17.7 59 269 -59 51 5 14 50 43 22 51 8 9 50 40 27 -0.07 - 42 0 0 50 50 20 2 55 10.0 58 270 -59 51 1 16 50 39 23 51 4 12 50 36 28 -0.07 - 41 0 0 50 45 54 2 55 2.4 57 270 -59 50 56 51 50 34 56 50 59 47 50 32 0 -0.07 - 40 0 0 50 41 0 2 54 54.7 57 271 -59 50 51 58 50 30 1 50 54 54 50 27 5 -0.07 - 39 0 0 50 35 38 2 54 47.2 56 272 -59 50 46 37 50 24 38 50 49 34 50 21 42 -0.07 - 38 0 0 50 29 47 2 54 39.6 56 273 -59 50 40 48 50 18 46 50 43 44 50 15 50 -0.07 - 37 0 0 50 23 28 2 54 32.0 55 274 -59 50 34 30 50 12 26 50 37 27 50 9 29 -0.07 - 36 0 0 50 16 39 2 54 24.5 54 275 -59 50 27 43 50 5 36 50 30 40 50 2 39 -0.07 - 35 0 0 50 9 22 2 54 17.0 54 276 -59 50 20 27 49 58 17 50 23 25 49 55 19 -0.07 - 34 0 0 50 1 35 2 54 9.5 53 276 -59 50 12 42 49 50 29 50 15 40 49 47 30 -0.07 - 33 0 0 49 53 18 2 54 2.1 53 277 -59 50 4 27 49 42 10 50 7 25 49 39 12 -0.07 - 32 0 0 49 44 31 2 53 54.6 52 278 -59 49 55 41 49 33 21 49 58 41 49 30 22 -0.07 - 31 0 0 49 35 14 2 53 47.2 51 279 -59 49 46 26 49 24 2 49 49 26 49 21 3 -0.07 - 30 0 0 49 25 26 2 53 39.8 51 280 -59 49 36 40 49 14 12 49 39 40 49 11 12 -0.07 - 29 0 0 49 15 6 2 53 32.4 50 280 -59 49 26 22 49 3 50 49 29 23 49 0 50 -0.07 - 28 0 0 49 4 15 2 53 25.1 49 281 -59 49 15 33 48 52 57 49 18 34 48 49 56 -0.07 - 27 0 0 48 52 52 2 53 17.7 49 282 -59 49 4 12 48 41 31 49 7 14 48 38 29 -0.07 - 26 0 0 48 40 56 2 53 10.4 48 283 -59 48 52 18 48 29 33 48 55 21 48 26 31 -0.07 - 25 0 0 48 28 27 2 53 3.1 47 284 -59 48 39 52 48 17 2 48 42 55 48 13 58 -0.07 - 24 0 0 48 15 24 2 52 55.8 47 284 -59 48 26 52 48 3 57 48 29 56 48 0 53 -0.07 - 23 0 0 48 1 48 2 52 48.6 46 285 -58 48 13 18 47 50 17 48 16 23 47 47 13 -0.07 - 22 0 0 47 47 37 2 52 41.3 45 286 -58 47 59 10 47 36 3 48 2 15 47 32 58 -0.07 - 21 0 0 47 32 50 2 52 34.1 45 287 -58 47 44 27 47 21 14 47 47 33 47 18 8 -0.07 - 20 0 0 47 17 28 2 52 26.9 44 287 -58 47 29 8 47 5 49 47 32 14 47 2 43 -0.07 - 19 0 0 47 1 30 2 52 19.7 43 288 -58 47 13 12 46 49 48 47 16 20 46 46 40 -0.07 - 18 0 0 46 44 55 2 52 12.6 42 289 -57 46 56 40 46 33 10 46 59 49 46 30 1 -0.07 - 17 0 0 46 27 42 2 52 5.4 42 290 -57 46 39 31 46 15 54 46 42 40 46 12 44 -0.07 - 16 0 0 46 9 51 2 51 58.3 41 290 -57 46 21 43 45 57 59 46 24 54 45 54 49 -0.07 - 15 0 0 45 51 21 2 51 51.3 40 291 -57 46 3 17 45 39 26 46 6 28 45 36 15 -0.06 - 14 0 0 45 32 12 2 51 44.2 39 292 -56 45 44 11 45 20 13 45 47 23 45 17 1 -0.06 - 13 0 0 45 12 22 2 51 37.2 39 293 -56 45 24 25 45 0 19 45 27 38 44 57 6 -0.06 - 12 0 0 44 51 51 2 51 30.3 38 293 -56 45 3 58 44 39 45 45 7 12 44 36 30 -0.06 - 11 0 0 44 30 38 2 51 23.3 37 294 -55 44 42 49 44 18 28 44 46 4 44 15 13 -0.06 - 10 0 0 44 8 43 2 51 16.4 36 295 -55 44 20 58 43 56 29 44 24 14 43 53 12 -0.06 - 9 0 0 43 46 4 2 51 9.6 36 295 -55 43 58 23 43 33 46 44 1 41 43 30 29 -0.06 - 8 0 0 43 22 42 2 51 2.8 35 296 -54 43 35 4 43 10 19 43 38 23 43 7 0 -0.06 - 7 0 0 42 58 34 2 50 56.0 34 297 -54 43 11 1 42 46 7 43 14 21 42 42 47 -0.06 - 6 0 0 42 33 40 2 50 49.3 33 298 -53 42 46 12 42 21 9 42 49 32 42 17 48 -0.06 - 5 0 0 42 8 0 2 50 42.7 32 298 -53 42 20 36 41 55 24 42 23 58 41 52 2 -0.06 - 4 0 0 41 41 32 2 50 36.1 31 299 -53 41 54 12 41 28 51 41 57 36 41 25 28 -0.06 - 3 0 0 41 14 15 2 50 29.6 31 300 -52 41 27 0 41 1 30 41 30 25 40 58 6 -0.06 - 2 0 0 40 46 9 2 50 23.2 30 300 -52 40 58 59 40 33 19 41 2 25 40 29 54 -0.06 - 1 0 0 40 17 13 2 50 16.9 29 301 -51 40 30 8 40 4 19 40 33 36 40 0 52 -0.06 0 0 0 39 47 26 2 50 10.6 28 302 -51 40 0 26 39 34 27 40 3 55 39 30 58 -0.06 1 0 0 39 16 47 2 50 4.4 27 302 -50 39 29 52 39 3 43 39 33 22 39 0 13 -0.06 2 0 0 38 45 15 2 49 58.4 26 303 -49 38 58 26 38 32 5 39 1 57 38 28 34 -0.06 3 0 0 38 12 50 2 49 52.4 25 303 -49 38 26 5 37 59 35 38 29 38 37 56 2 -0.06 4 0 0 37 39 29 2 49 46.6 24 304 -48 37 52 50 37 26 9 37 56 24 37 22 35 -0.06 5 0 0 37 5 14 2 49 40.9 23 305 -48 37 18 39 36 51 48 37 22 15 36 48 12 -0.06 6 0 0 36 30 1 2 49 35.3 22 305 -47 36 43 33 36 16 30 36 47 10 36 12 53 -0.06 7 0 0 35 53 52 2 49 29.9 21 306 -46 36 7 29 35 40 15 36 11 7 35 36 37 -0.06 8 0 0 35 16 45 2 49 24.7 20 306 -46 35 30 27 35 3 2 35 34 7 34 59 23 -0.06 9 0 0 34 38 38 2 49 19.6 19 307 -45 34 52 26 34 24 51 34 56 8 34 21 9 -0.06 10 0 0 33 59 33 2 49 14.6 18 308 -44 34 13 27 33 45 39 34 17 9 33 41 57 -0.06 11 0 0 33 19 27 2 49 9.9 17 308 -43 33 33 26 33 5 28 33 37 11 33 1 44 -0.06 12 0 0 32 38 20 2 49 5.4 16 309 -43 32 52 26 32 24 16 32 56 12 32 20 30 -0.06 13 0 0 31 56 12 2 49 1.1 15 309 -42 32 10 23 31 42 2 32 14 11 31 38 14 -0.06 14 0 0 31 13 3 2 48 57.0 14 310 -41 31 27 19 30 58 46 31 31 8 30 54 57 -0.06 15 0 0 30 28 50 2 48 53.2 13 310 -40 30 43 13 30 14 28 30 47 3 30 10 38 -0.06 16 0 0 29 43 35 2 48 49.6 12 311 -39 29 58 4 29 29 7 30 1 56 29 25 15 -0.06 17 0 0 28 57 17 2 48 46.4 11 311 -38 29 11 52 28 42 43 29 15 45 28 38 50 -0.06 18 0 0 28 9 56 2 48 43.4 9 312 -37 28 24 36 27 55 16 28 28 31 27 51 21 -0.06 19 0 0 27 21 32 2 48 40.7 8 312 -36 27 36 18 27 6 46 27 40 14 27 2 50 -0.06 20 0 0 26 32 4 2 48 38.3 7 313 -35 26 46 56 26 17 13 26 50 54 26 13 15 -0.07 21 0 0 25 41 34 2 48 36.3 6 313 -34 25 56 31 25 26 37 26 0 31 25 22 37 -0.07 22 0 0 24 50 1 2 48 34.6 5 313 -33 25 5 3 24 34 58 25 9 5 24 30 57 -0.08 23 0 0 23 57 25 2 48 33.3 3 314 -32 24 12 33 23 42 17 24 16 36 23 38 14 -0.10 24 0 0 23 3 48 2 48 32.5 2 314 -31 23 19 2 22 48 35 23 23 6 22 44 31 -0.14 25 0 0 22 9 11 2 48 32.0 1 315 -30 22 24 30 21 53 52 22 28 35 21 49 46 -0.32 Uncertainty in time = +/- 3 secs Prediction of 2021 Dec 11.0 Data for the target star ------------------------ * name: UCAC4 655-031733 * constellation : Auriga * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 14 55.1378 DE: +40 54 57.139 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 14 55.1377 DE: +40 54 57.139 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 13.4 * B mag [mag]: 13.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2826) Ahti asteroid class: approx. diameter [km]: 40 approx. diameter ["]: 0.023 distance from Earth [AU]: 2.42150 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#49 date of fit: 2021 Nov 09 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): 0.015", 0.002", 73.7° remarks: * orbital elements for (2826)Ahti : Mean anomaly = 278.9803509380 deg Arg. of pericenter = 146.8885651806 deg Long. of node = 33.6004073820 deg Inclination = 15.4462233830 deg Eccentricity = 0.0491243610 Semimajor axis = 3.2223501884 AU Perihelion dist = 3.0640542945 AU Mag: H = 11.17, G = 0.15 Epoch of elements : MJD 59601.12665833 TDT (2022 Jan 22.1267) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#492021Nov09,5.26,2022,1,22,3.0399,-0.031217,0.067347,-3.916672,-1.809726,0.004003,-0.001093,0.000001,0.000000 -87.9305,40.9420,137.27,-19.70,False UCAC4 655-031733,5.24864938,40.9158719,13.76,13.40,13.21,0.0,0,,5.27451513,40.9419624,3.02,2.79,0,0,0 2826,Ahti,16.35,40.2,2.4215,0,0,-1.255,-6.57,,2.0 0,278.9588,2022,1,22,146.8886,33.6004,15.4462,0.04912,3.22235,3.06405,11.17,5.0,0.15 1.134,0.0150,0.0021,74,0.0031,Known errors,-1.00,-1,-1,-1 20220122_031733,59559.00 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2021 Dec 11, 21:30 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org