IOTA/IOTA-ES occultation update for (52246) Donaldjohanson / UCAC4 505-051219 event on 2024 Nov 28, 19:03 UT Visible from Summary ------- On 2024 Nov 28 UT, the 2.44 km diameter asteroid (52246) Donaldjohanson will occult a 11.2 mag star in the constellation Leo for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 8.04 mag to 19.23 mag (the magnitude of the asteroid) for at most 0.180 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: 9 * date and approx. time of event: 2024 Nov 28, 18:56 - 2024 Nov 28, 19:11 * geocentric midpoint of event [JD]: 2460643.29419271 * magnitude of target star: 11.19 * magnitude drop [mag]: 8.04 * estimated maximum duration [s]: 0.180 * Moon: 6 % sunlit, 75° distance * Sun: 103° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 3 * 1 sigma uncertainty interval [path widths]: +/- 7.63 * 1 sigma uncertainty interval [seconds]: +/- 2.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.034, +/- 0.020) * 1 sigma uncertainty ellipse (major, minor, PA): (0.036", 0.017", 111°) * approx speed of asteroid's shadow [km/s]: 13.2219 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 505-051219 by 52246 Donaldjohanson on 2024 Nov 28 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 49 0 0 52 13 55 18 56 16.7 0 73 -54 52 13 10 52 14 41 52 1 48 52 26 4 .... 50 0 0 52 25 21 18 56 16.8 1 73 -54 52 24 36 52 26 6 52 13 15 52 37 27 -0.39 51 0 0 52 36 22 18 56 16.9 2 74 -55 52 35 37 52 37 7 52 24 18 52 48 26 -0.41 52 0 0 52 46 58 18 56 17.1 2 75 -55 52 46 14 52 47 43 52 34 57 52 59 1 -0.42 53 0 0 52 57 11 18 56 17.4 3 76 -55 52 56 27 52 57 56 52 45 12 53 9 12 -0.42 54 0 0 53 7 1 18 56 17.7 3 77 -55 53 6 16 53 7 45 52 55 3 53 19 0 -0.43 55 0 0 53 16 27 18 56 18.1 4 77 -55 53 15 42 53 17 11 53 4 31 53 28 24 -0.43 56 0 0 53 25 29 18 56 18.5 5 78 -56 53 24 45 53 26 14 53 13 35 53 37 24 -0.43 57 0 0 53 34 9 18 56 19.0 5 79 -56 53 33 24 53 34 53 53 22 16 53 46 2 -0.43 58 0 0 53 42 25 18 56 19.6 6 80 -56 53 41 41 53 43 10 53 30 35 53 54 17 -0.43 59 0 0 53 50 19 18 56 20.2 7 81 -56 53 49 35 53 51 3 53 38 30 54 2 10 -0.43 60 0 0 53 57 51 18 56 20.8 7 81 -56 53 57 7 53 58 35 53 46 3 54 9 39 -0.43 61 0 0 54 5 0 18 56 21.6 8 82 -56 54 4 16 54 5 44 53 53 13 54 16 47 -0.43 62 0 0 54 11 46 18 56 22.3 8 83 -56 54 11 2 54 12 30 54 0 1 54 23 32 -0.43 63 0 0 54 18 11 18 56 23.2 9 84 -56 54 17 27 54 18 55 54 6 27 54 29 56 -0.43 64 0 0 54 24 14 18 56 24.0 10 85 -56 54 23 30 54 24 57 54 12 31 54 35 57 -0.43 65 0 0 54 29 54 18 56 25.0 10 86 -56 54 29 11 54 30 38 54 18 13 54 41 37 -0.43 66 0 0 54 35 13 18 56 25.9 11 86 -56 54 34 30 54 35 57 54 23 33 54 46 55 -0.43 67 0 0 54 40 11 18 56 27.0 11 87 -56 54 39 27 54 40 54 54 28 32 54 51 51 -0.43 68 0 0 54 44 47 18 56 28.1 12 88 -57 54 44 4 54 45 30 54 33 9 54 56 26 -0.43 69 0 0 54 49 2 18 56 29.2 12 89 -57 54 48 18 54 49 45 54 37 24 55 0 40 -0.43 70 0 0 54 52 55 18 56 30.4 13 90 -57 54 52 12 54 53 38 54 41 19 55 4 32 -0.43 71 0 0 54 56 27 18 56 31.6 14 91 -56 54 55 44 54 57 10 54 44 52 55 8 4 -0.43 72 0 0 54 59 38 18 56 32.9 14 91 -56 54 58 55 55 0 21 54 48 3 55 11 14 -0.43 73 0 0 55 2 28 18 56 34.2 15 92 -56 55 1 45 55 3 11 54 50 54 55 14 3 -0.43 74 0 0 55 4 57 18 56 35.6 15 93 -56 55 4 14 55 5 40 54 53 24 55 16 32 -0.43 75 0 0 55 7 5 18 56 37.1 16 94 -56 55 6 22 55 7 48 54 55 32 55 18 39 -0.43 76 0 0 55 8 52 18 56 38.5 16 95 -56 55 8 9 55 9 36 54 57 20 55 20 26 -0.43 77 0 0 55 10 19 18 56 40.1 17 96 -56 55 9 36 55 11 2 54 58 46 55 21 52 -0.43 78 0 0 55 11 24 18 56 41.7 18 96 -56 55 10 41 55 12 7 54 59 52 55 22 57 -0.43 79 0 0 55 12 9 18 56 43.3 18 97 -56 55 11 26 55 12 52 55 0 37 55 23 42 -0.43 80 0 0 55 12 32 18 56 45.0 19 98 -56 55 11 49 55 13 16 55 1 1 55 24 5 -0.43 81 0 0 55 12 35 18 56 46.7 19 99 -56 55 11 52 55 13 18 55 1 4 55 24 8 -0.43 82 0 0 55 12 17 18 56 48.5 20 100 -56 55 11 34 55 13 1 55 0 46 55 23 50 -0.43 83 0 0 55 11 39 18 56 50.3 20 101 -55 55 10 56 55 12 22 55 0 7 55 23 11 -0.43 84 0 0 55 10 39 18 56 52.2 21 102 -55 55 9 56 55 11 22 54 59 7 55 22 12 -0.43 85 0 0 55 9 18 18 56 54.1 22 102 -55 55 8 35 55 10 2 54 57 46 55 20 52 -0.43 86 0 0 55 7 37 18 56 56.1 22 103 -55 55 6 54 55 8 20 54 56 4 55 19 10 -0.43 87 0 0 55 5 34 18 56 58.1 23 104 -55 55 4 51 55 6 17 54 54 2 55 17 8 -0.43 88 0 0 55 3 11 18 57 0.2 23 105 -55 55 2 27 55 3 54 54 51 37 55 14 45 -0.43 89 0 0 55 0 26 18 57 2.4 24 106 -54 54 59 43 55 1 9 54 48 52 55 12 1 -0.43 90 0 0 54 57 20 18 57 4.5 24 107 -54 54 56 36 54 58 3 54 45 45 55 8 55 -0.43 91 0 0 54 53 52 18 57 6.8 25 108 -54 54 53 9 54 54 35 54 42 17 55 5 28 -0.43 92 0 0 54 50 3 18 57 9.1 26 109 -54 54 49 20 54 50 47 54 38 27 55 1 40 -0.43 93 0 0 54 45 53 18 57 11.5 26 109 -53 54 45 9 54 46 36 54 34 16 54 57 30 -0.43 94 0 0 54 41 21 18 57 13.9 27 110 -53 54 40 37 54 42 4 54 29 43 54 52 59 -0.43 95 0 0 54 36 26 18 57 16.3 27 111 -53 54 35 43 54 37 10 54 24 48 54 48 6 -0.43 96 0 0 54 31 10 18 57 18.9 28 112 -53 54 30 27 54 31 54 54 19 31 54 42 51 -0.43 97 0 0 54 25 32 18 57 21.5 28 113 -52 54 24 49 54 26 16 54 13 52 54 37 14 -0.43 98 0 0 54 19 32 18 57 24.1 29 114 -52 54 18 48 54 20 16 54 7 50 54 31 15 -0.43 99 0 0 54 13 9 18 57 26.8 30 115 -52 54 12 25 54 13 53 54 1 26 54 24 53 -0.43 100 0 0 54 6 24 18 57 29.6 30 116 -51 54 5 40 54 7 8 53 54 40 54 18 9 -0.43 101 0 0 53 59 15 18 57 32.4 31 117 -51 53 58 32 53 59 59 53 47 30 54 11 2 -0.43 102 0 0 53 51 44 18 57 35.3 31 117 -51 53 51 0 53 52 28 53 39 57 54 3 32 -0.43 103 0 0 53 43 50 18 57 38.3 32 118 -50 53 43 6 53 44 34 53 32 1 53 55 39 -0.43 104 0 0 53 35 32 18 57 41.3 33 119 -50 53 34 48 53 36 16 53 23 42 53 47 23 -0.43 105 0 0 53 26 50 18 57 44.4 33 120 -50 53 26 6 53 27 35 53 14 59 53 38 43 -0.42 106 0 0 53 17 45 18 57 47.6 34 121 -49 53 17 1 53 18 30 53 5 52 53 29 40 -0.42 107 0 0 53 8 16 18 57 50.8 34 122 -49 53 7 31 53 9 0 52 56 21 53 20 12 -0.42 108 0 0 52 58 22 18 57 54.1 35 123 -48 52 57 37 52 59 7 52 46 25 53 10 20 -0.42 109 0 0 52 48 4 18 57 57.5 36 124 -48 52 47 19 52 48 48 52 36 5 53 0 4 -0.42 110 0 0 52 37 21 18 58 0.9 36 125 -48 52 36 36 52 38 5 52 25 20 52 49 23 -0.42 111 0 0 52 26 12 18 58 4.5 37 126 -47 52 25 27 52 26 57 52 14 9 52 38 16 -0.42 112 0 0 52 14 39 18 58 8.1 37 127 -47 52 13 54 52 15 24 52 2 34 52 26 45 -0.42 113 0 0 52 2 39 18 58 11.8 38 128 -46 52 1 54 52 3 25 51 50 32 52 14 48 -0.42 114 0 0 51 50 14 18 58 15.5 39 129 -46 51 49 29 51 51 0 51 38 5 52 2 25 -0.42 115 0 0 51 37 23 18 58 19.4 39 130 -45 51 36 37 51 38 8 51 25 11 51 49 36 -0.42 116 0 0 51 24 5 18 58 23.3 40 131 -45 51 23 19 51 24 51 51 11 51 51 36 20 -0.42 117 0 0 51 10 20 18 58 27.3 41 132 -44 51 9 34 51 11 6 50 58 4 51 22 38 -0.42 118 0 0 50 56 9 18 58 31.4 41 133 -44 50 55 23 50 56 55 50 43 50 51 8 29 -0.42 119 0 0 50 41 29 18 58 35.6 42 134 -43 50 40 43 50 42 16 50 29 8 50 53 52 -0.42 120 0 0 50 26 23 18 58 39.9 42 135 -43 50 25 36 50 27 9 50 13 59 50 38 48 -0.42 121 0 0 50 10 48 18 58 44.3 43 136 -42 50 10 1 50 11 34 49 58 21 50 23 15 -0.42 122 0 0 49 54 45 18 58 48.7 44 137 -42 49 53 58 49 55 31 49 42 15 50 7 15 -0.42 123 0 0 49 38 13 18 58 53.3 44 138 -41 49 37 26 49 39 0 49 25 41 49 50 46 -0.42 124 0 0 49 21 12 18 58 58.0 45 139 -41 49 20 25 49 21 59 49 8 38 49 33 48 -0.42 125 0 0 49 3 42 18 59 2.7 46 140 -40 49 2 55 49 4 30 48 51 5 49 16 21 -0.42 126 0 0 48 45 43 18 59 7.6 46 141 -40 48 44 56 48 46 30 48 33 3 48 58 25 -0.42 127 0 0 48 27 14 18 59 12.6 47 142 -39 48 26 26 48 28 1 48 14 31 48 39 58 -0.42 128 0 0 48 8 15 18 59 17.6 48 144 -38 48 7 27 48 9 2 47 55 29 48 21 2 -0.42 129 0 0 47 48 45 18 59 22.8 48 145 -38 47 47 57 47 49 33 47 35 57 48 1 35 -0.42 130 0 0 47 28 45 18 59 28.1 49 146 -37 47 27 57 47 29 33 47 15 53 47 41 38 -0.42 131 0 0 47 8 14 18 59 33.5 50 147 -37 47 7 26 47 9 2 46 55 19 47 21 10 -0.43 132 0 0 46 47 12 18 59 39.0 50 148 -36 46 46 24 46 48 0 46 34 14 47 0 11 -0.43 133 0 0 46 25 38 18 59 44.6 51 150 -35 46 24 50 46 26 27 46 12 38 46 38 40 -0.43 134 0 0 46 3 33 18 59 50.3 52 151 -35 46 2 45 46 4 22 45 50 30 46 16 38 -0.43 135 0 0 45 40 56 18 59 56.2 52 152 -34 45 40 7 45 41 45 45 27 50 45 54 4 -0.43 136 0 0 45 17 48 19 0 2.1 53 154 -33 45 16 58 45 18 37 45 4 38 45 30 59 -0.43 137 0 0 44 54 7 19 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32 25 25 -0.43 163 0 0 31 34 34 19 3 28.0 66 211 -10 31 33 41 31 35 27 31 20 20 31 48 49 -0.44 164 0 0 30 57 35 19 3 37.1 66 214 -8 30 56 42 30 58 28 30 43 21 31 11 51 -0.44 165 0 0 30 20 16 19 3 46.3 66 217 -7 30 19 23 30 21 10 30 6 1 30 34 33 -0.44 166 0 0 29 42 38 19 3 55.5 66 220 -6 29 41 45 29 43 32 29 28 22 29 56 56 -0.44 167 0 0 29 4 42 19 4 4.7 66 223 -5 29 3 49 29 5 36 28 50 26 29 19 1 -0.44 168 0 0 28 26 30 19 4 14.1 66 226 -4 28 25 37 28 27 23 28 12 13 28 40 49 -0.44 169 0 0 27 48 2 19 4 23.4 66 229 -3 27 47 9 27 48 56 27 33 45 28 2 21 -0.44 170 0 0 27 9 21 19 4 32.8 66 232 -2 27 8 28 27 10 14 26 55 4 27 23 40 -0.44 171 0 0 26 30 27 19 4 42.3 65 235 -1 26 29 34 26 31 20 26 16 10 26 44 46 -0.44 172 0 0 25 51 22 19 4 51.7 65 238 0 25 50 29 25 52 16 25 37 5 26 5 41 -0.44 173 0 0 25 12 8 19 5 1.2 64 240 1 25 11 15 25 13 2 24 57 51 25 26 27 -0.44 174 0 0 24 32 46 19 5 10.7 64 243 2 24 31 53 24 33 39 24 18 30 24 47 4 -0.44 175 0 0 23 53 18 19 5 20.1 63 245 4 23 52 24 23 54 11 23 39 2 24 7 35 -0.44 176 0 0 23 13 45 19 5 29.6 63 248 5 23 12 51 23 14 38 22 59 30 23 28 1 -0.44 177 0 0 22 34 8 19 5 39.0 62 250 6 22 33 15 22 35 1 22 19 54 22 48 24 -0.44 178 0 0 21 54 30 19 5 48.5 61 252 7 21 53 37 21 55 23 21 40 17 22 8 45 -0.44 179 0 0 21 14 52 19 5 57.8 61 254 8 21 13 59 21 15 45 21 0 40 21 29 6 -0.44 180 0 0 20 35 16 19 6 7.2 60 256 9 20 34 23 20 36 9 20 21 5 20 49 28 -0.44 -179 0 0 19 55 42 19 6 16.5 59 258 11 19 54 49 19 56 35 19 41 33 20 9 53 -0.44 -178 0 0 19 16 14 19 6 25.7 58 259 12 19 15 21 19 17 7 19 2 7 19 30 23 -0.44 -177 0 0 18 36 52 19 6 34.8 57 261 13 18 35 59 18 37 44 18 22 46 18 50 59 -0.45 -176 0 0 17 57 37 19 6 43.9 56 263 14 17 56 45 17 58 30 17 43 33 18 11 43 -0.45 -175 0 0 17 18 32 19 6 52.9 55 264 15 17 17 40 17 19 25 17 4 30 17 32 36 -0.45 -174 0 0 16 39 38 19 7 1.8 55 265 16 16 38 46 16 40 30 16 25 39 16 53 40 -0.45 -173 0 0 16 0 56 19 7 10.6 54 267 18 16 0 4 16 1 49 15 46 59 16 14 56 -0.45 -172 0 0 15 22 29 19 7 19.3 53 268 19 15 21 37 15 23 21 15 8 33 15 36 26 -0.45 -171 0 0 14 44 16 19 7 27.9 52 269 20 14 43 24 14 45 8 14 30 23 14 58 11 -0.45 -170 0 0 14 6 20 19 7 36.4 51 270 21 14 5 28 14 7 12 13 52 30 14 20 12 -0.45 -169 0 0 13 28 42 19 7 44.7 50 271 22 13 27 51 13 29 34 13 14 54 13 42 32 -0.45 -168 0 0 12 51 23 19 7 52.9 49 272 24 12 50 32 12 52 15 12 37 38 13 5 10 -0.45 -167 0 0 12 14 25 19 8 1.0 48 273 25 12 13 34 12 15 16 12 0 42 12 28 9 -0.45 -166 0 0 11 37 48 19 8 8.9 47 274 26 11 36 57 11 38 39 11 24 9 11 51 30 -0.45 -165 0 0 11 1 35 19 8 16.7 46 274 27 11 0 44 11 2 26 10 47 58 11 15 13 -0.45 -164 0 0 10 25 45 19 8 24.3 44 275 28 10 24 54 10 26 36 10 12 11 10 39 21 -0.45 -163 0 0 9 50 20 19 8 31.8 43 276 29 9 49 30 9 51 11 9 36 49 10 3 53 -0.45 -162 0 0 9 15 21 19 8 39.1 42 276 31 9 14 31 9 16 12 9 1 53 9 28 51 -0.45 -161 0 0 8 40 50 19 8 46.2 41 277 32 8 39 59 8 41 40 8 27 24 8 54 17 -0.45 -160 0 0 8 6 46 19 8 53.2 40 277 33 8 5 56 8 7 36 7 53 23 8 20 10 -0.45 -159 0 0 7 33 10 19 9 0.0 39 278 34 7 32 21 7 34 0 7 19 51 7 46 32 -0.45 -158 0 0 7 0 5 19 9 6.6 38 278 35 6 59 15 7 0 54 6 46 48 7 13 23 -0.46 -157 0 0 6 27 29 19 9 13.0 37 279 36 6 26 40 6 28 19 6 14 16 6 40 44 -0.46 -156 0 0 5 55 25 19 9 19.3 36 279 37 5 54 36 5 56 14 5 42 14 6 8 37 -0.46 -155 0 0 5 23 52 19 9 25.4 35 279 39 5 23 3 5 24 41 5 10 45 5 37 1 -0.46 -154 0 0 4 52 52 19 9 31.3 34 280 40 4 52 3 4 53 41 4 39 47 5 5 58 -0.46 -153 0 0 4 22 24 19 9 37.0 33 280 41 4 21 35 4 23 13 4 9 23 4 35 27 -0.46 -152 0 0 3 52 30 19 9 42.5 31 280 42 3 51 41 3 53 18 3 39 31 4 5 30 -0.46 -151 0 0 3 23 9 19 9 47.8 30 281 43 3 22 21 3 23 58 3 10 14 3 36 6 -0.46 -150 0 0 2 54 23 19 9 53.0 29 281 44 2 53 35 2 55 11 2 41 31 3 7 17 -0.46 -149 0 0 2 26 12 19 9 57.9 28 281 45 2 25 24 2 27 0 2 13 22 2 39 3 -0.46 -148 0 0 1 58 35 19 10 2.7 27 281 46 1 57 48 1 59 23 1 45 49 2 11 24 -0.46 -147 0 0 1 31 35 19 10 7.2 26 281 48 1 30 47 1 32 22 1 18 51 1 44 20 -0.46 -146 0 0 1 5 9 19 10 11.6 25 281 49 1 4 22 1 5 57 0 52 28 1 17 52 -0.46 -145 0 0 0 39 20 19 10 15.8 24 282 50 0 38 33 0 40 7 0 26 42 0 52 0 -0.46 -144 0 0 0 14 7 19 10 19.8 23 282 51 0 13 20 0 14 54 0 1 31 0 26 44 -0.46 -143 0 0 - 0 10 30 19 10 23.6 22 282 52 - 0 11 17 - 0 9 43 - 0 23 3 0 2 4 -0.46 -142 0 0 - 0 34 30 19 10 27.2 21 282 53 - 0 35 17 - 0 33 43 - 0 47 0 - 0 21 59 -0.46 -141 0 0 - 0 57 54 19 10 30.6 20 282 54 - 0 58 40 - 0 57 7 - 1 10 21 - 0 45 25 -0.46 -140 0 0 - 1 20 40 19 10 33.8 18 282 55 - 1 21 27 - 1 19 54 - 1 33 5 - 1 8 14 -0.46 -139 0 0 - 1 42 50 19 10 36.9 17 282 56 - 1 43 36 - 1 42 4 - 1 55 12 - 1 30 26 -0.47 -138 0 0 - 2 4 23 19 10 39.7 16 282 57 - 2 5 9 - 2 3 37 - 2 16 43 - 1 52 1 -0.47 -137 0 0 - 2 25 18 19 10 42.4 15 282 58 - 2 26 4 - 2 24 32 - 2 37 36 - 2 12 59 -0.47 -136 0 0 - 2 45 37 19 10 44.9 14 282 59 - 2 46 22 - 2 44 51 - 2 57 52 - 2 33 20 -0.47 -135 0 0 - 3 5 18 19 10 47.2 13 282 60 - 3 6 3 - 3 4 32 - 3 17 31 - 2 53 4 -0.47 -134 0 0 - 3 24 22 19 10 49.3 12 282 61 - 3 25 7 - 3 23 36 - 3 36 33 - 3 12 10 -0.47 -133 0 0 - 3 42 49 19 10 51.2 11 282 62 - 3 43 34 - 3 42 3 - 3 54 57 - 3 30 39 -0.47 -132 0 0 - 4 0 39 19 10 53.0 10 282 63 - 4 1 24 - 3 59 53 - 4 12 45 - 3 48 31 -0.48 -131 0 0 - 4 17 51 19 10 54.6 9 282 64 - 4 18 36 - 4 17 6 - 4 29 56 - 4 5 45 -0.48 -130 0 0 - 4 34 27 19 10 56.0 8 282 65 - 4 35 12 - 4 33 42 - 4 46 29 - 4 22 23 -0.48 -129 0 0 - 4 50 25 19 10 57.2 7 282 66 - 4 51 10 - 4 49 40 - 5 2 26 - 4 38 23 -0.49 -128 0 0 - 5 5 47 19 10 58.3 6 281 67 - 5 6 31 - 5 5 2 - 5 17 45 - 4 53 47 -0.50 -127 0 0 - 5 20 31 19 10 59.1 5 281 67 - 5 21 16 - 5 19 47 - 5 32 28 - 5 8 33 -0.51 -126 0 0 - 5 34 39 19 10 59.8 4 281 68 - 5 35 23 - 5 33 54 - 5 46 34 - 5 22 42 -0.52 -125 0 0 - 5 48 10 19 11 0.4 3 281 69 - 5 48 54 - 5 47 25 - 6 0 3 - 5 36 15 -0.55 -124 0 0 - 6 1 4 19 11 0.8 2 281 70 - 6 1 48 - 6 0 20 - 6 12 56 - 5 49 11 -0.61 -123 0 0 - 6 13 22 19 11 1.0 1 281 71 - 6 14 6 - 6 12 37 - 6 25 12 - 6 1 30 -0.82 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 505-051219 * constellation : Leo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 09 38 16.8497 DE: +10 54 55.730 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 09 38 16.8498 DE: +10 54 55.730 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.2 * B mag [mag]: 11.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (52246) Donaldjohanson asteroid class: approx. diameter [km]: 2 approx. diameter ["]: 0.002 distance from Earth [AU]: 1.45430 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#20 date of fit: 2022 Feb 04 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): 0.036", 0.017", 111.144° remarks: * orbital elements for (52246)Donaldjohanson : Mean anomaly = 358.6928173525 deg Arg. of pericenter = 212.7879349204 deg Long. of node = 262.7766846179 deg Inclination = 4.4255389839 deg Eccentricity = 0.1870900480 Semimajor axis = 2.3835569576 AU Perihelion dist = 1.9376171721 AU Mag: H = 15.69, G = 0.15 Epoch of elements : MJD 60642.79419204 TDT (2024 Nov 28.7942) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#202022Feb04,0.18,2024,11,28,19.060625,0.197605,0.344538,6.472903,-3.714138,-0.004948,0.001776,0.000000,0.000000 150.8268,10.8037,-108.85,-21.49,False UCAC4 505-051219,9.63801378,10.9154808,11.46,11.19,11.04,0.0,0,,9.66039618,10.8036721,8.04,7.74,0,0,0 52246,Donaldjohanson,19.23,2.440,1.4543,0,0,2.656,-22.46,,0.4,0 0,358.4801,2024,11,28,212.7879,262.7767,4.4255,0.18709,2.38356,1.93762,15.69,5.0,0.15 8.538,0.0357,0.0170,111,0.0177,Known errors,0.75,0,-1,-1 20241128_051219,60140.72 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:14 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org