IOTA/IOTA-ES occultation update for (2675) Tolkien / UCAC4 581-018549 event on 2024 Mar 26, 04:32 UT Visible from Summary ------- On 2024 Mar 26 UT, the 9.81750746313391 km diameter asteroid (2675) Tolkien will occult a 11.3 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 5.78 mag to 17.04 mag (the magnitude of the asteroid) for at most 0.460 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 Mar 26, 04:27 - 2024 Mar 26, 04:37 * geocentric midpoint of event [JD]: 2460395.68929054 * magnitude of target star: 11.27 * magnitude drop [mag]: 5.78 * estimated maximum duration [s]: 0.460 * Moon: 99 % sunlit, 108° distance * Sun: 81° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 10 * 1 sigma uncertainty interval [path widths]: +/- 0.23 * 1 sigma uncertainty interval [seconds]: +/- 1.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.001", 88°) * approx speed of asteroid's shadow [km/s]: 22.5429 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 581-018549 by 2675 Tolkien on 2024 Mar 26 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 105 0 0 2 45 31 4 27 51.9 0 64 81 2 42 22 2 48 41 2 40 54 2 50 9 .... 106 0 0 3 15 8 4 27 52.0 2 64 82 3 11 58 3 18 17 3 10 30 3 19 45 -0.12 107 0 0 3 44 41 4 27 52.2 3 64 82 3 41 31 3 47 50 3 40 3 3 49 18 -0.08 108 0 0 4 14 10 4 27 52.5 4 64 83 4 11 1 4 17 19 4 9 33 4 18 47 -0.06 109 0 0 4 43 34 4 27 52.9 5 64 84 4 40 25 4 46 44 4 38 57 4 48 12 -0.05 110 0 0 5 12 53 4 27 53.4 6 64 85 5 9 44 5 16 2 5 8 16 5 17 30 -0.05 111 0 0 5 42 5 4 27 54.0 7 64 85 5 38 56 5 45 14 5 37 28 5 46 42 -0.04 112 0 0 6 11 10 4 27 54.8 8 64 86 6 8 1 6 14 19 6 6 33 6 15 47 -0.04 113 0 0 6 40 7 4 27 55.6 9 65 86 6 36 59 6 43 16 6 35 31 6 44 44 -0.04 114 0 0 7 8 56 4 27 56.5 10 65 85 7 5 47 7 12 4 7 4 19 7 13 32 -0.04 115 0 0 7 37 35 4 27 57.6 11 65 85 7 34 26 7 40 43 7 32 58 7 42 11 -0.03 116 0 0 8 6 3 4 27 58.7 13 65 84 8 2 55 8 9 12 8 1 27 8 10 39 -0.03 117 0 0 8 34 21 4 27 59.9 14 65 83 8 31 13 8 37 29 8 29 45 8 38 57 -0.03 118 0 0 9 2 27 4 28 1.3 15 65 82 8 59 19 9 5 35 8 57 52 9 7 3 -0.03 119 0 0 9 30 21 4 28 2.7 16 65 82 9 27 13 9 33 29 9 25 46 9 34 56 -0.03 120 0 0 9 58 2 4 28 4.2 17 66 81 9 54 54 10 1 9 9 53 27 10 2 37 -0.03 121 0 0 10 25 29 4 28 5.8 18 66 80 10 22 22 10 28 36 10 20 55 10 30 3 -0.03 122 0 0 10 52 42 4 28 7.6 19 66 79 10 49 35 10 55 49 10 48 8 10 57 16 -0.03 123 0 0 11 19 40 4 28 9.4 20 66 78 11 16 33 11 22 47 11 15 6 11 24 13 -0.03 124 0 0 11 46 22 4 28 11.3 21 66 77 11 43 16 11 49 29 11 41 49 11 50 56 -0.03 125 0 0 12 12 49 4 28 13.3 22 67 76 12 9 42 12 15 55 12 8 16 12 17 21 -0.03 126 0 0 12 38 58 4 28 15.3 23 67 75 12 35 52 12 42 4 12 34 26 12 43 31 -0.03 127 0 0 13 4 51 4 28 17.5 25 67 74 13 1 45 13 7 56 13 0 19 13 9 22 -0.03 128 0 0 13 30 25 4 28 19.7 26 67 73 13 27 20 13 33 30 13 25 54 13 34 57 -0.03 129 0 0 13 55 41 4 28 22.1 27 67 71 13 52 36 13 58 46 13 51 10 14 0 12 -0.03 130 0 0 14 20 39 4 28 24.5 28 68 70 14 17 34 14 23 43 14 16 8 14 25 9 -0.03 131 0 0 14 45 17 4 28 26.9 29 68 69 14 42 12 14 48 21 14 40 47 14 49 47 -0.03 132 0 0 15 9 35 4 28 29.5 30 68 68 15 6 31 15 12 39 15 5 6 15 14 5 -0.02 133 0 0 15 33 33 4 28 32.1 31 68 67 15 30 30 15 36 37 15 29 4 15 38 3 -0.02 134 0 0 15 57 11 4 28 34.8 32 69 66 15 54 8 16 0 14 15 52 43 16 1 40 -0.02 135 0 0 16 20 28 4 28 37.6 33 69 65 16 17 25 16 23 31 16 16 0 16 24 56 -0.02 136 0 0 16 43 23 4 28 40.5 34 69 64 16 40 21 16 46 26 16 38 56 16 47 51 -0.02 137 0 0 17 5 57 4 28 43.4 35 70 63 17 2 54 17 8 59 17 1 30 17 10 24 -0.02 138 0 0 17 28 8 4 28 46.3 36 70 62 17 25 6 17 31 10 17 23 42 17 32 35 -0.02 139 0 0 17 49 58 4 28 49.4 37 70 61 17 46 56 17 52 59 17 45 31 17 54 24 -0.02 140 0 0 18 11 24 4 28 52.5 38 71 60 18 8 23 18 14 25 18 6 58 18 15 50 -0.02 141 0 0 18 32 28 4 28 55.7 39 71 59 18 29 27 18 35 28 18 28 3 18 36 53 -0.02 142 0 0 18 53 8 4 28 58.9 40 71 58 18 50 7 18 56 8 18 48 43 18 57 32 -0.02 143 0 0 19 13 25 4 29 2.1 41 72 57 19 10 25 19 16 25 19 9 1 19 17 49 -0.02 144 0 0 19 33 18 4 29 5.5 42 72 56 19 30 18 19 36 18 19 28 54 19 37 41 -0.02 145 0 0 19 52 47 4 29 8.9 43 72 55 19 49 48 19 55 46 19 48 24 19 57 10 -0.02 146 0 0 20 11 52 4 29 12.3 44 73 54 20 8 53 20 14 51 20 7 30 20 16 14 -0.02 147 0 0 20 30 33 4 29 15.8 45 73 53 20 27 34 20 33 31 20 26 11 20 34 55 -0.02 148 0 0 20 48 49 4 29 19.3 46 73 52 20 45 51 20 51 47 20 44 28 20 53 10 -0.02 149 0 0 21 6 40 4 29 22.9 47 74 51 21 3 42 21 9 38 21 2 20 21 11 1 -0.02 150 0 0 21 24 7 4 29 26.5 48 74 50 21 21 9 21 27 5 21 19 47 21 28 28 -0.02 151 0 0 21 41 9 4 29 30.2 49 75 49 21 38 12 21 44 6 21 36 49 21 45 29 -0.02 152 0 0 21 57 46 4 29 33.9 50 75 48 21 54 49 22 0 43 21 53 26 22 2 5 -0.02 153 0 0 22 13 57 4 29 37.6 51 75 47 22 11 0 22 16 54 22 9 38 22 18 16 -0.02 154 0 0 22 29 43 4 29 41.4 52 76 46 22 26 47 22 32 40 22 25 25 22 34 2 -0.02 155 0 0 22 45 4 4 29 45.2 53 76 45 22 42 8 22 48 0 22 40 46 22 49 22 -0.02 156 0 0 23 0 0 4 29 49.1 54 77 44 22 57 4 23 2 55 22 55 42 23 4 17 -0.02 157 0 0 23 14 29 4 29 53.0 55 77 43 23 11 34 23 17 25 23 10 12 23 18 46 -0.02 158 0 0 23 28 34 4 29 56.9 56 77 42 23 25 39 23 31 29 23 24 17 23 32 50 -0.02 159 0 0 23 42 12 4 30 0.8 57 78 42 23 39 18 23 45 7 23 37 56 23 46 28 -0.02 160 0 0 23 55 25 4 30 4.8 58 78 41 23 52 31 23 58 20 23 51 10 23 59 41 -0.02 161 0 0 24 8 12 4 30 8.8 59 79 40 24 5 18 24 11 7 24 3 57 24 12 28 -0.02 162 0 0 24 20 34 4 30 12.9 60 79 39 24 17 40 24 23 28 24 16 19 24 24 49 -0.02 163 0 0 24 32 29 4 30 16.9 61 80 38 24 29 36 24 35 23 24 28 15 24 36 44 -0.02 164 0 0 24 43 59 4 30 21.0 62 80 37 24 41 6 24 46 52 24 39 45 24 48 13 -0.02 165 0 0 24 55 3 4 30 25.1 63 81 36 24 52 10 24 57 56 24 50 49 24 59 17 -0.02 166 0 0 25 5 41 4 30 29.3 64 81 35 25 2 48 25 8 34 25 1 28 25 9 54 -0.02 167 0 0 25 15 53 4 30 33.4 64 82 34 25 13 1 25 18 46 25 11 40 25 20 6 -0.02 168 0 0 25 25 39 4 30 37.6 65 82 33 25 22 47 25 28 32 25 21 27 25 29 52 -0.02 169 0 0 25 35 0 4 30 41.8 66 83 32 25 32 8 25 37 52 25 30 48 25 39 12 -0.02 170 0 0 25 43 54 4 30 46.1 67 83 31 25 41 2 25 46 46 25 39 42 25 48 6 -0.02 171 0 0 25 52 23 4 30 50.3 68 84 30 25 49 31 25 55 15 25 48 11 25 56 35 -0.02 172 0 0 26 0 26 4 30 54.6 69 84 29 25 57 34 26 3 17 25 56 14 26 4 37 -0.02 173 0 0 26 8 3 4 30 58.8 70 85 28 26 5 11 26 10 54 26 3 52 26 12 14 -0.02 174 0 0 26 15 14 4 31 3.1 71 85 28 26 12 22 26 18 5 26 11 3 26 19 24 -0.02 175 0 0 26 21 59 4 31 7.4 72 86 27 26 19 8 26 24 50 26 17 48 26 26 9 -0.02 176 0 0 26 28 18 4 31 11.8 73 86 26 26 25 27 26 31 9 26 24 8 26 32 28 -0.02 177 0 0 26 34 12 4 31 16.1 74 87 25 26 31 21 26 37 2 26 30 1 26 38 22 -0.02 178 0 0 26 39 39 4 31 20.5 75 88 24 26 36 49 26 42 30 26 35 29 26 43 49 -0.02 179 0 0 26 44 41 4 31 24.8 75 88 23 26 41 51 26 47 31 26 40 31 26 48 51 -0.02 -180 0 0 26 49 17 4 31 29.2 76 89 22 26 46 27 26 52 7 26 45 8 26 53 27 -0.02 -179 0 0 26 53 27 4 31 33.6 77 90 21 26 50 37 26 56 18 26 49 18 26 57 37 -0.02 -178 0 0 26 57 12 4 31 38.0 78 90 20 26 54 22 27 0 2 26 53 2 27 1 21 -0.02 -177 0 0 27 0 30 4 31 42.4 79 91 19 26 57 40 27 3 20 26 56 21 27 4 40 -0.02 -176 0 0 27 3 23 4 31 46.8 80 92 18 27 0 33 27 6 13 26 59 14 27 7 32 -0.02 -175 0 0 27 5 50 4 31 51.2 81 93 17 27 3 0 27 8 40 27 1 41 27 9 59 -0.02 -174 0 0 27 7 52 4 31 55.7 82 94 17 27 5 2 27 10 42 27 3 43 27 12 1 -0.02 -173 0 0 27 9 27 4 32 0.1 83 95 16 27 6 38 27 12 17 27 5 19 27 13 36 -0.02 -172 0 0 27 10 37 4 32 4.6 83 97 15 27 7 47 27 13 27 27 6 28 27 14 46 -0.02 -171 0 0 27 11 21 4 32 9.0 84 98 14 27 8 31 27 14 11 27 7 13 27 15 30 -0.02 -170 0 0 27 11 40 4 32 13.5 85 101 13 27 8 50 27 14 29 27 7 31 27 15 48 -0.02 -169 0 0 27 11 32 4 32 18.0 86 104 12 27 8 42 27 14 22 27 7 23 27 15 41 -0.02 -168 0 0 27 10 59 4 32 22.4 87 109 11 27 8 9 27 13 49 27 6 50 27 15 8 -0.02 -167 0 0 27 10 0 4 32 26.9 87 119 10 27 7 10 27 12 50 27 5 51 27 14 9 -0.02 -166 0 0 27 8 35 4 32 31.4 88 142 9 27 5 46 27 11 25 27 4 27 27 12 44 -0.03 -165 0 0 27 6 45 4 32 35.9 88 197 8 27 3 55 27 9 35 27 2 36 27 10 54 -0.04 -164 0 0 27 4 29 4 32 40.3 87 236 8 27 1 39 27 7 19 27 0 20 27 8 38 -0.03 -163 0 0 27 1 47 4 32 44.8 87 251 7 26 58 57 27 4 37 26 57 38 27 5 56 -0.02 -162 0 0 26 58 39 4 32 49.3 86 258 6 26 55 49 27 1 29 26 54 30 27 2 48 -0.02 -161 0 0 26 55 5 4 32 53.8 86 262 5 26 52 15 26 57 56 26 50 56 26 59 15 -0.02 -160 0 0 26 51 6 4 32 58.3 85 265 4 26 48 16 26 53 56 26 46 57 26 55 15 -0.02 -159 0 0 26 46 41 4 33 2.8 84 267 3 26 43 50 26 49 31 26 42 31 26 50 50 -0.02 -158 0 0 26 41 50 4 33 7.3 83 268 2 26 38 59 26 44 40 26 37 40 26 46 0 -0.02 -157 0 0 26 36 33 4 33 11.8 82 269 1 26 33 42 26 39 23 26 32 23 26 40 43 -0.02 -156 0 0 26 30 50 4 33 16.2 81 271 0 26 27 59 26 33 41 26 26 40 26 35 0 -0.02 -155 0 0 26 24 41 4 33 20.7 80 272 -1 26 21 50 26 27 32 26 20 31 26 28 52 -0.02 -154 0 0 26 18 7 4 33 25.2 79 272 -2 26 15 16 26 20 58 26 13 56 26 22 17 -0.02 -153 0 0 26 11 6 4 33 29.7 79 273 -3 26 8 15 26 13 58 26 6 55 26 15 17 -0.02 -152 0 0 26 3 40 4 33 34.1 78 274 -3 26 0 48 26 6 31 25 59 29 26 7 51 -0.02 -151 0 0 25 55 48 4 33 38.6 77 275 -4 25 52 56 25 58 39 25 51 36 25 59 59 -0.02 -150 0 0 25 47 29 4 33 43.1 76 275 -5 25 44 37 25 50 21 25 43 17 25 51 41 -0.02 -149 0 0 25 38 45 4 33 47.5 75 276 -6 25 35 53 25 41 37 25 34 33 25 42 57 -0.02 -148 0 0 25 29 35 4 33 51.9 74 277 -7 25 26 43 25 32 27 25 25 22 25 33 47 -0.02 -147 0 0 25 19 59 4 33 56.4 73 277 -8 25 17 6 25 22 51 25 15 46 25 24 12 -0.02 -146 0 0 25 9 57 4 34 0.8 72 278 -9 25 7 4 25 12 49 25 5 44 25 14 10 -0.02 -145 0 0 24 59 29 4 34 5.2 71 278 -10 24 56 36 25 2 22 24 55 15 25 3 42 -0.02 -144 0 0 24 48 35 4 34 9.6 70 279 -11 24 45 41 24 51 28 24 44 21 24 52 49 -0.02 -143 0 0 24 37 15 4 34 14.0 69 279 -12 24 34 21 24 40 8 24 33 0 24 41 29 -0.02 -142 0 0 24 25 29 4 34 18.3 68 280 -13 24 22 35 24 28 23 24 21 14 24 29 44 -0.02 -141 0 0 24 13 17 4 34 22.7 67 280 -14 24 10 23 24 16 11 24 9 2 24 17 32 -0.02 -140 0 0 24 0 39 4 34 27.0 67 281 -15 23 57 45 24 3 34 23 56 24 24 4 55 -0.02 -139 0 0 23 47 36 4 34 31.3 66 281 -16 23 44 41 23 50 31 23 43 20 23 51 52 -0.02 -138 0 0 23 34 7 4 34 35.6 65 282 -17 23 31 12 23 37 2 23 29 50 23 38 23 -0.02 -137 0 0 23 20 11 4 34 39.9 64 282 -18 23 17 16 23 23 7 23 15 55 23 24 28 -0.02 -136 0 0 23 5 51 4 34 44.2 63 283 -19 23 2 55 23 8 46 23 1 33 23 10 8 -0.02 -135 0 0 22 51 4 4 34 48.4 62 283 -19 22 48 8 22 54 0 22 46 46 22 55 22 -0.02 -134 0 0 22 35 52 4 34 52.6 61 284 -20 22 32 56 22 38 48 22 31 34 22 40 10 -0.02 -133 0 0 22 20 14 4 34 56.8 60 284 -21 22 17 18 22 23 11 22 15 55 22 24 33 -0.02 -132 0 0 22 4 11 4 35 1.0 59 285 -22 22 1 14 22 7 8 21 59 52 22 8 30 -0.02 -131 0 0 21 47 43 4 35 5.1 58 285 -23 21 44 45 21 50 40 21 43 23 21 52 2 -0.02 -130 0 0 21 30 49 4 35 9.2 57 285 -24 21 27 51 21 33 46 21 26 29 21 35 9 -0.02 -129 0 0 21 13 30 4 35 13.3 56 286 -25 21 10 32 21 16 28 21 9 9 21 17 51 -0.02 -128 0 0 20 55 46 4 35 17.3 55 286 -26 20 52 48 20 58 44 20 51 25 21 0 7 -0.02 -127 0 0 20 37 37 4 35 21.3 54 287 -27 20 34 39 20 40 36 20 33 16 20 41 59 -0.02 -126 0 0 20 19 4 4 35 25.3 53 287 -28 20 16 5 20 22 3 20 14 42 20 23 26 -0.02 -125 0 0 20 0 6 4 35 29.2 52 287 -29 19 57 6 20 3 5 19 55 43 20 4 29 -0.02 -124 0 0 19 40 43 4 35 33.1 51 288 -30 19 37 44 19 43 43 19 36 20 19 45 7 -0.02 -123 0 0 19 20 57 4 35 37.0 50 288 -31 19 17 57 19 23 57 19 16 33 19 25 21 -0.02 -122 0 0 19 0 46 4 35 40.8 49 288 -32 18 57 46 19 3 47 18 56 22 19 5 11 -0.02 -121 0 0 18 40 12 4 35 44.6 48 289 -33 18 37 11 18 43 13 18 35 47 18 44 37 -0.02 -120 0 0 18 19 14 4 35 48.3 47 289 -34 18 16 13 18 22 15 18 14 49 18 23 40 -0.02 -119 0 0 17 57 53 4 35 52.0 46 289 -35 17 54 52 18 0 55 17 53 27 18 2 19 -0.02 -118 0 0 17 36 9 4 35 55.6 45 290 -36 17 33 8 17 39 11 17 31 43 17 40 36 -0.02 -117 0 0 17 14 3 4 35 59.2 44 290 -38 17 11 1 17 17 5 17 9 36 17 18 30 -0.02 -116 0 0 16 51 34 4 36 2.7 43 290 -39 16 48 31 16 54 37 16 47 6 16 56 2 -0.02 -115 0 0 16 28 43 4 36 6.1 42 291 -40 16 25 40 16 31 46 16 24 15 16 33 11 -0.02 -114 0 0 16 5 31 4 36 9.5 41 291 -41 16 2 27 16 8 34 16 1 2 16 9 59 -0.02 -113 0 0 15 41 57 4 36 12.9 40 291 -42 15 38 53 15 45 0 15 37 28 15 46 26 -0.02 -112 0 0 15 18 2 4 36 16.2 38 292 -43 15 14 58 15 21 6 15 13 32 15 22 32 -0.02 -111 0 0 14 53 47 4 36 19.4 37 292 -44 14 50 43 14 56 51 14 49 17 14 58 17 -0.02 -110 0 0 14 29 12 4 36 22.5 36 292 -45 14 26 7 14 32 16 14 24 41 14 33 42 -0.02 -109 0 0 14 4 17 4 36 25.6 35 292 -46 14 1 12 14 7 22 13 59 46 14 8 48 -0.02 -108 0 0 13 39 3 4 36 28.6 34 293 -47 13 35 57 13 42 8 13 34 31 13 43 34 -0.02 -107 0 0 13 13 30 4 36 31.6 33 293 -48 13 10 25 13 16 36 13 8 58 13 18 2 -0.03 -106 0 0 12 47 39 4 36 34.4 32 293 -49 12 44 34 12 50 45 12 43 7 12 52 12 -0.03 -105 0 0 12 21 31 4 36 37.2 31 293 -50 12 18 25 12 24 37 12 16 58 12 26 4 -0.03 -104 0 0 11 55 6 4 36 39.9 30 293 -51 11 51 59 11 58 12 11 50 32 11 59 39 -0.03 -103 0 0 11 28 24 4 36 42.6 29 294 -52 11 25 17 11 31 31 11 23 50 11 32 57 -0.03 -102 0 0 11 1 26 4 36 45.1 28 294 -53 10 58 19 11 4 33 10 56 52 11 6 0 -0.03 -101 0 0 10 34 13 4 36 47.6 27 294 -55 10 31 6 10 37 20 10 29 39 10 38 47 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11 296 -70 3 49 39 3 55 58 3 48 11 3 57 27 -0.04 - 86 0 0 3 23 11 4 37 13.3 10 296 -71 3 20 1 3 26 20 3 18 33 3 27 49 -0.04 - 85 0 0 2 53 29 4 37 14.2 9 296 -72 2 50 20 2 56 39 2 48 52 2 58 7 -0.04 - 84 0 0 2 23 45 4 37 15.0 8 296 -73 2 20 36 2 26 55 2 19 7 2 28 23 -0.04 - 83 0 0 1 53 59 4 37 15.7 7 296 -74 1 50 50 1 57 9 1 49 21 1 58 37 -0.05 - 82 0 0 1 24 12 4 37 16.3 6 296 -75 1 21 2 1 27 22 1 19 34 1 28 50 -0.05 - 81 0 0 0 54 25 4 37 16.8 4 296 -77 0 51 15 0 57 35 0 49 47 0 59 3 -0.06 - 80 0 0 0 24 38 4 37 17.2 3 296 -78 0 21 28 0 27 48 0 20 0 0 29 16 -0.07 - 79 0 0 - 0 5 7 4 37 17.5 2 296 -79 - 0 8 17 - 0 1 58 - 0 9 45 - 0 0 29 -0.10 - 78 0 0 - 0 34 50 4 37 17.6 1 296 -80 - 0 38 0 - 0 31 41 - 0 39 28 - 0 30 12 -0.17 - 77 0 0 .. .. .... .. .. .. .. .. .. .. .. .. - 1 1 21 .. .. .. - 0 59 53 .... Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 14.3 Data for the target star ------------------------ * name: UCAC4 581-018549 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 46 28.1415 DE: +26 07 24.828 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 46 28.1415 DE: +26 07 24.828 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.400,0.200) * V mag [mag]: 11.3 * B mag [mag]: 13.2 * Diameter [mas]: 0.40 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2675) Tolkien asteroid class: approx. diameter [km]: 10 approx. diameter ["]: 0.006 distance from Earth [AU]: 2.17330 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 date of fit: 2023 Feb 11 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", 0.001", 87.9° remarks: * orbital elements for (2675)Tolkien : Mean anomaly = 93.7847418673 deg Arg. of pericenter = 1.8765423688 deg Long. of node = 5.8118377942 deg Inclination = 2.7500355464 deg Eccentricity = 0.1020493217 Semimajor axis = 2.2124461133 AU Perihelion dist = 1.9866674882 AU Mag: H = 12.41, G = 0.15 Epoch of elements : MJD 60395.18929025 TDT (2024 Mar 26.1893) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Feb11,0.46,2024,3,26,4.542973,0.000204,0.014499,12.715870,-0.450768,0.005432,0.000153,0.000000,0.000000 -165.2712,26.1339,113.26,2.39,False UCAC4 581-018549,5.77448380,26.1235632,13.16,11.27,10.25,0.4,0,,5.79942041,26.1339116,5.77,6.34,0,0,0 2675,Tolkien,17.04,10.448,2.1733,0,0,3.821,-1.83,,0.6,0 0,93.7280,2024,3,26,1.8765,5.8118,2.7500,0.10205,2.21245,1.98667,12.41,5.0,0.15 1.233,0.0150,0.0011,88,0.0015,Known errors,1.04,0,-1,-1 20240326_018549,60139.26 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 06:09 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org