IOTA/IOTA-ES occultation update for (618) Elfriede / UCAC4 566-048348 event on 2023 Apr 10, 18:17 UT Visible from China, India, SW Asia Summary ------- On 2023 Apr 10 UT, the 127.8 km diameter asteroid (618) Elfriede will occult a 11.5 mag star in the constellation Coma Berenices for observers along a path across China, India, SW Asia. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.34 mag to 13.68 mag (the magnitude of the asteroid) for at most 11.230 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: 2023 Apr 10, 18:09 - 2023 Apr 10, 18:28 * geocentric midpoint of event [JD]: 2460045.26289229 * magnitude of target star: 11.47 * magnitude drop [mag]: 2.34 * estimated maximum duration [s]: 11.230 * Moon: 78 % sunlit, 87° distance * Sun: 145° distance * rough path description: China, India, SW Asia Additional comments ------------------- RUWE high, close double star The occultation path -------------------- * approximate projected width [km]: 129 * 1 sigma uncertainty interval [path widths]: +/- 0.05 * 1 sigma uncertainty interval [seconds]: +/- 3.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.024, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.003", 104°) * approx speed of asteroid's shadow [km/s]: 11.3754 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 566-048348 by 618 Elfriede on 2023 Apr 10 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 - 32 0 0 18 38 22 18 27 49.2 0 66 27 19 16 43 .. .. .. 19 20 17 .. .. .. .... - 31 0 0 19 4 6 18 27 49.1 1 66 26 19 42 24 18 25 51 19 45 58 18 22 19 -0.19 - 30 0 0 19 29 33 18 27 48.7 2 66 25 20 7 47 18 51 22 20 11 21 18 47 49 -0.16 - 29 0 0 19 54 41 18 27 48.3 3 67 24 20 32 52 19 16 33 20 36 25 19 13 1 -0.15 - 28 0 0 20 19 31 18 27 47.6 4 67 23 20 57 38 19 41 27 21 1 11 19 37 55 -0.14 - 27 0 0 20 44 1 18 27 46.8 5 67 22 21 22 5 20 6 1 21 25 37 20 2 30 -0.14 - 26 0 0 21 8 13 18 27 45.7 6 68 21 21 46 12 20 30 16 21 49 44 20 26 45 -0.14 - 25 0 0 21 32 4 18 27 44.6 7 68 20 22 10 0 20 54 12 22 13 31 20 50 41 -0.14 - 24 0 0 21 55 36 18 27 43.2 8 68 19 22 33 27 21 17 47 22 36 58 21 14 17 -0.14 - 23 0 0 22 18 47 18 27 41.7 9 69 18 22 56 34 21 41 2 23 0 5 21 37 32 -0.14 - 22 0 0 22 41 37 18 27 40.0 10 69 17 23 19 21 22 3 57 23 22 51 22 0 27 -0.13 - 21 0 0 23 4 7 18 27 38.2 11 70 16 23 41 46 22 26 30 23 45 16 22 23 1 -0.13 - 20 0 0 23 26 15 18 27 36.2 12 70 15 24 3 51 22 48 43 24 7 20 22 45 14 -0.13 - 19 0 0 23 48 2 18 27 34.1 13 70 15 24 25 34 23 10 34 24 29 3 23 7 6 -0.13 - 18 0 0 24 9 28 18 27 31.8 14 71 14 24 46 55 23 32 4 24 50 24 23 28 36 -0.13 - 17 0 0 24 30 32 18 27 29.4 15 71 13 25 7 55 23 53 12 25 11 23 23 49 44 -0.13 - 16 0 0 24 51 14 18 27 26.8 16 72 12 25 28 32 24 13 58 25 32 0 24 10 31 -0.13 - 15 0 0 25 11 33 18 27 24.1 17 72 11 25 48 48 24 34 22 25 52 16 24 30 55 -0.13 - 14 0 0 25 31 31 18 27 21.2 18 72 10 26 8 41 24 54 24 26 12 9 24 50 57 -0.13 - 13 0 0 25 51 6 18 27 18.2 19 73 9 26 28 13 25 14 3 26 31 39 25 10 37 -0.13 - 12 0 0 26 10 19 18 27 15.1 20 73 8 26 47 21 25 33 20 26 50 48 25 29 55 -0.13 - 11 0 0 26 29 9 18 27 11.9 21 74 8 27 6 7 25 52 15 27 9 33 25 48 49 -0.13 - 10 0 0 26 47 37 18 27 8.5 22 74 7 27 24 31 26 10 46 27 27 56 26 7 21 -0.13 - 9 0 0 27 5 42 18 27 5.0 23 75 6 27 42 31 26 28 55 27 45 57 26 25 31 -0.13 - 8 0 0 27 23 24 18 27 1.4 24 75 5 28 0 9 26 46 41 28 3 34 26 43 17 -0.13 - 7 0 0 27 40 43 18 26 57.7 25 76 4 28 17 24 27 4 4 28 20 49 27 0 41 -0.13 - 6 0 0 27 57 39 18 26 53.9 25 76 3 28 34 16 27 21 5 28 37 40 27 17 41 -0.13 - 5 0 0 28 14 12 18 26 49.9 26 77 3 28 50 46 27 37 42 28 54 9 27 34 19 -0.13 - 4 0 0 28 30 22 18 26 45.9 27 77 2 29 6 52 27 53 56 29 10 15 27 50 33 -0.13 - 3 0 0 28 46 9 18 26 41.7 28 78 1 29 22 35 28 9 47 29 25 58 28 6 25 -0.13 - 2 0 0 29 1 34 18 26 37.5 29 78 0 29 37 55 28 25 15 29 41 18 28 21 53 -0.13 - 1 0 0 29 16 35 18 26 33.1 30 79 -1 29 52 53 28 40 20 29 56 15 28 36 58 -0.14 0 0 0 29 31 13 18 26 28.7 31 79 -1 30 7 27 28 55 2 30 10 49 28 51 40 -0.14 1 0 0 29 45 28 18 26 24.1 32 80 -2 30 21 38 29 9 20 30 25 0 29 5 59 -0.14 2 0 0 29 59 20 18 26 19.5 33 80 -3 30 35 27 29 23 16 30 38 48 29 19 55 -0.14 3 0 0 30 12 49 18 26 14.7 33 81 -4 30 48 52 29 36 48 30 52 13 29 33 28 -0.14 4 0 0 30 25 54 18 26 9.9 34 81 -5 31 1 54 29 49 57 31 5 15 29 46 37 -0.14 5 0 0 30 38 37 18 26 5.0 35 82 -5 31 14 34 30 2 44 31 17 54 29 59 24 -0.14 6 0 0 30 50 57 18 26 0.0 36 83 -6 31 26 51 30 15 7 31 30 11 30 11 48 -0.14 7 0 0 31 2 54 18 25 54.9 37 83 -7 31 38 45 30 27 7 31 42 4 30 23 48 -0.14 8 0 0 31 14 29 18 25 49.7 38 84 -8 31 50 16 30 38 45 31 53 35 30 35 26 -0.14 9 0 0 31 25 40 18 25 44.5 39 84 -9 32 1 24 30 49 59 32 4 43 30 46 41 -0.14 10 0 0 31 36 28 18 25 39.2 39 85 -9 32 12 9 31 0 51 32 15 28 30 57 32 -0.14 11 0 0 31 46 54 18 25 33.8 40 85 -10 32 22 32 31 11 19 32 25 51 31 8 1 -0.14 12 0 0 31 56 57 18 25 28.3 41 86 -11 32 32 32 31 21 25 32 35 51 31 18 7 -0.14 13 0 0 32 6 38 18 25 22.7 42 87 -12 32 42 10 31 31 8 32 45 28 31 27 51 -0.14 14 0 0 32 15 55 18 25 17.1 43 87 -12 32 51 25 31 40 29 32 54 43 31 37 11 -0.14 15 0 0 32 24 51 18 25 11.4 44 88 -13 33 0 18 31 49 26 33 3 35 31 46 9 -0.14 16 0 0 32 33 23 18 25 5.7 44 89 -14 33 8 48 31 58 1 33 12 5 31 54 45 -0.14 17 0 0 32 41 33 18 24 59.9 45 89 -14 33 16 56 32 6 14 33 20 13 32 2 57 -0.14 18 0 0 32 49 21 18 24 54.0 46 90 -15 33 24 41 32 14 4 33 27 58 32 10 48 -0.14 19 0 0 32 56 47 18 24 48.0 47 90 -16 33 32 5 32 21 32 33 35 21 32 18 15 -0.14 20 0 0 33 3 50 18 24 42.0 48 91 -17 33 39 6 32 28 37 33 42 22 32 25 21 -0.14 21 0 0 33 10 30 18 24 35.9 49 92 -17 33 45 44 32 35 19 33 49 1 32 32 3 -0.14 22 0 0 33 16 49 18 24 29.8 49 92 -18 33 52 1 32 41 40 33 55 17 32 38 24 -0.14 23 0 0 33 22 45 18 24 23.6 50 93 -19 33 57 56 32 47 38 34 1 12 32 44 22 -0.14 24 0 0 33 28 19 18 24 17.3 51 94 -19 34 3 28 32 53 13 34 6 44 32 49 58 -0.14 25 0 0 33 33 31 18 24 11.0 52 95 -20 34 8 39 32 58 27 34 11 54 32 55 12 -0.14 26 0 0 33 38 21 18 24 4.6 53 95 -21 34 13 27 33 3 18 34 16 43 33 0 3 -0.14 27 0 0 33 42 49 18 23 58.2 53 96 -22 34 17 54 33 7 48 34 21 9 33 4 33 -0.14 28 0 0 33 46 55 18 23 51.7 54 97 -22 34 21 59 33 11 55 34 25 14 33 8 40 -0.14 29 0 0 33 50 39 18 23 45.1 55 98 -23 34 25 42 33 15 40 34 28 57 33 12 25 -0.14 30 0 0 33 54 1 18 23 38.5 56 98 -24 34 29 3 33 19 3 34 32 18 33 15 48 -0.14 31 0 0 33 57 2 18 23 31.9 57 99 -24 34 32 2 33 22 4 34 35 17 33 18 50 -0.14 32 0 0 33 59 40 18 23 25.2 57 100 -25 34 34 40 33 24 43 34 37 55 33 21 29 -0.14 33 0 0 34 1 57 18 23 18.4 58 101 -26 34 36 55 33 27 1 34 40 10 33 23 46 -0.14 34 0 0 34 3 51 18 23 11.6 59 102 -26 34 38 50 33 28 56 34 42 5 33 25 42 -0.14 35 0 0 34 5 24 18 23 4.8 60 103 -27 34 40 22 33 30 29 34 43 37 33 27 15 -0.14 36 0 0 34 6 36 18 22 57.9 60 103 -28 34 41 33 33 31 41 34 44 48 33 28 27 -0.14 37 0 0 34 7 25 18 22 50.9 61 104 -28 34 42 23 33 32 31 34 45 37 33 29 16 -0.14 38 0 0 34 7 53 18 22 43.9 62 105 -29 34 42 50 33 32 59 34 46 5 33 29 44 -0.14 39 0 0 34 7 59 18 22 36.8 63 106 -30 34 42 57 33 33 5 34 46 11 33 29 51 -0.14 40 0 0 34 7 44 18 22 29.7 64 107 -30 34 42 41 33 32 49 34 45 56 33 29 35 -0.14 41 0 0 34 7 7 18 22 22.6 64 108 -31 34 42 4 33 32 12 34 45 19 33 28 58 -0.14 42 0 0 34 6 8 18 22 15.4 65 109 -32 34 41 6 33 31 13 34 44 21 33 27 58 -0.14 43 0 0 34 4 47 18 22 8.2 66 110 -32 34 39 46 33 29 52 34 43 1 33 26 38 -0.14 44 0 0 34 3 5 18 22 0.9 67 112 -33 34 38 4 33 28 9 34 41 19 33 24 55 -0.14 45 0 0 34 1 2 18 21 53.5 67 113 -34 34 36 1 33 26 5 34 39 16 33 22 50 -0.14 46 0 0 33 58 36 18 21 46.2 68 114 -34 34 33 37 33 23 39 34 36 52 33 20 24 -0.14 47 0 0 33 55 49 18 21 38.8 69 115 -35 34 30 50 33 20 51 34 34 6 33 17 36 -0.14 48 0 0 33 52 41 18 21 31.3 70 117 -35 34 27 43 33 17 41 34 30 58 33 14 27 -0.14 49 0 0 33 49 10 18 21 23.8 70 118 -36 34 24 14 33 14 10 34 27 29 33 10 55 -0.14 50 0 0 33 45 18 18 21 16.2 71 120 -37 34 20 23 33 10 17 34 23 38 33 7 2 -0.14 51 0 0 33 41 5 18 21 8.6 72 121 -37 34 16 10 33 6 2 34 19 26 33 2 47 -0.14 52 0 0 33 36 29 18 21 1.0 72 123 -38 34 11 37 33 1 25 34 14 52 32 58 10 -0.14 53 0 0 33 31 33 18 20 53.3 73 125 -39 34 6 41 32 56 27 34 9 57 32 53 12 -0.14 54 0 0 33 26 14 18 20 45.6 74 126 -39 34 1 24 32 51 7 34 4 40 32 47 51 -0.14 55 0 0 33 20 34 18 20 37.9 75 129 -40 33 55 45 32 45 25 33 59 2 32 42 9 -0.15 56 0 0 33 14 31 18 20 30.1 75 131 -40 33 49 45 32 39 21 33 53 2 32 36 5 -0.15 57 0 0 33 8 8 18 20 22.3 76 133 -41 33 43 23 32 32 55 33 46 40 32 29 39 -0.15 58 0 0 33 1 22 18 20 14.4 77 136 -42 33 36 40 32 26 8 33 39 56 32 22 51 -0.15 59 0 0 32 54 15 18 20 6.5 77 138 -42 33 29 34 32 18 58 33 32 51 32 15 42 -0.15 60 0 0 32 46 46 18 19 58.5 78 141 -43 33 22 7 32 11 27 33 25 25 32 8 10 -0.15 61 0 0 32 38 55 18 19 50.5 78 145 -43 33 14 19 32 3 34 33 17 36 32 0 17 -0.15 62 0 0 32 30 42 18 19 42.5 79 148 -44 33 6 8 31 55 19 33 9 26 31 52 2 -0.15 63 0 0 32 22 7 18 19 34.5 79 152 -44 32 57 36 31 46 42 33 0 54 31 43 24 -0.15 64 0 0 32 13 11 18 19 26.4 80 157 -45 32 48 42 31 37 43 32 52 0 31 34 25 -0.15 65 0 0 32 3 53 18 19 18.3 80 161 -45 32 39 27 31 28 22 32 42 45 31 25 4 -0.15 66 0 0 31 54 12 18 19 10.1 81 167 -46 32 29 49 31 18 39 32 33 7 31 15 21 -0.15 67 0 0 31 44 10 18 19 1.9 81 172 -47 32 19 50 31 8 34 32 23 8 31 5 16 -0.15 68 0 0 31 33 46 18 18 53.7 81 178 -47 32 9 28 30 58 7 32 12 47 30 54 48 -0.15 69 0 0 31 23 0 18 18 45.4 81 184 -48 31 58 45 30 47 18 32 2 5 30 43 59 -0.15 70 0 0 31 11 52 18 18 37.2 82 191 -48 31 47 40 30 36 7 31 51 0 30 32 48 -0.15 71 0 0 31 0 22 18 18 28.9 82 197 -49 31 36 14 30 24 34 31 39 33 30 21 15 -0.15 72 0 0 30 48 30 18 18 20.5 81 204 -49 31 24 25 30 12 39 31 27 45 30 9 20 -0.15 73 0 0 30 36 17 18 18 12.2 81 210 -50 31 12 14 30 0 22 31 15 35 29 57 3 -0.15 74 0 0 30 23 41 18 18 3.8 81 216 -50 30 59 42 29 47 43 31 3 3 29 44 23 -0.15 75 0 0 30 10 43 18 17 55.4 81 221 -50 30 46 47 29 34 42 30 50 8 29 31 22 -0.15 76 0 0 29 57 24 18 17 46.9 80 226 -51 30 33 31 29 21 20 30 36 53 29 17 59 -0.15 77 0 0 29 43 42 18 17 38.5 80 231 -51 30 19 53 29 7 35 30 23 15 29 4 14 -0.15 78 0 0 29 29 39 18 17 30.0 79 235 -52 30 5 53 28 53 28 30 9 15 28 50 7 -0.15 79 0 0 29 15 14 18 17 21.5 79 239 -52 29 51 31 28 38 59 29 54 54 28 35 37 -0.14 80 0 0 29 0 27 18 17 13.0 78 243 -53 29 36 48 28 24 8 29 40 11 28 20 46 -0.14 81 0 0 28 45 18 18 17 4.5 77 246 -53 29 21 43 28 8 56 29 25 6 28 5 34 -0.14 82 0 0 28 29 47 18 16 55.9 77 249 -53 29 6 16 27 53 22 29 9 39 27 49 59 -0.14 83 0 0 28 13 55 18 16 47.4 76 252 -54 28 50 27 27 37 26 28 53 50 27 34 3 -0.14 84 0 0 27 57 41 18 16 38.8 75 254 -54 28 34 17 27 21 8 28 37 40 27 17 45 -0.14 85 0 0 27 41 5 18 16 30.2 75 256 -54 28 17 45 27 4 29 28 21 9 27 1 5 -0.14 86 0 0 27 24 8 18 16 21.7 74 259 -55 28 0 51 26 47 28 28 4 16 26 44 4 -0.14 87 0 0 27 6 49 18 16 13.1 73 260 -55 27 43 36 26 30 6 27 47 1 26 26 41 -0.14 88 0 0 26 49 9 18 16 4.5 72 262 -55 27 26 0 26 12 22 27 29 26 26 8 57 -0.14 89 0 0 26 31 8 18 15 55.9 71 264 -55 27 8 3 25 54 17 27 11 29 25 50 52 -0.14 90 0 0 26 12 46 18 15 47.4 71 265 -56 26 49 45 25 35 51 26 53 11 25 32 25 -0.14 91 0 0 25 54 3 18 15 38.8 70 267 -56 26 31 5 25 17 4 26 34 31 25 13 38 -0.14 92 0 0 25 34 58 18 15 30.2 69 268 -56 26 12 5 24 57 56 26 15 31 24 54 30 -0.14 93 0 0 25 15 33 18 15 21.7 68 270 -56 25 52 43 24 38 27 25 56 11 24 35 1 -0.14 94 0 0 24 55 48 18 15 13.1 67 271 -56 25 33 2 24 18 38 25 36 29 24 15 11 -0.14 95 0 0 24 35 42 18 15 4.6 66 272 -56 25 12 59 23 58 28 25 16 27 23 55 1 -0.14 96 0 0 24 15 16 18 14 56.1 65 273 -57 24 52 37 23 37 58 24 56 5 23 34 30 -0.14 97 0 0 23 54 29 18 14 47.6 65 274 -57 24 31 54 23 17 8 24 35 23 23 13 40 -0.14 98 0 0 23 33 23 18 14 39.1 64 275 -57 24 10 52 22 55 58 24 14 21 22 52 30 -0.14 99 0 0 23 11 57 18 14 30.7 63 276 -57 23 49 29 22 34 28 23 52 59 22 31 0 -0.14 100 0 0 22 50 12 18 14 22.3 62 277 -57 23 27 48 22 12 39 23 31 17 22 9 11 -0.14 101 0 0 22 28 7 18 14 14.0 61 278 -57 23 5 47 21 50 31 23 9 17 21 47 2 -0.14 102 0 0 22 5 44 18 14 5.6 60 278 -56 22 43 27 21 28 4 22 46 57 21 24 35 -0.14 103 0 0 21 43 2 18 13 57.3 59 279 -56 22 20 48 21 5 19 22 24 19 21 1 49 -0.14 104 0 0 21 20 1 18 13 49.1 58 280 -56 21 57 51 20 42 15 22 1 22 20 38 45 -0.14 105 0 0 20 56 42 18 13 40.9 57 281 -56 21 34 36 20 18 53 21 38 7 20 15 22 -0.14 106 0 0 20 33 6 18 13 32.8 56 281 -56 21 11 3 19 55 13 21 14 34 19 51 42 -0.14 107 0 0 20 9 12 18 13 24.7 55 282 -56 20 47 12 19 31 16 20 50 44 19 27 45 -0.14 108 0 0 19 45 1 18 13 16.7 54 282 -55 20 23 4 19 7 2 20 26 37 19 3 30 -0.14 109 0 0 19 20 34 18 13 8.7 53 283 -55 19 58 40 18 42 31 20 2 12 18 38 59 -0.14 110 0 0 18 55 50 18 13 0.8 52 284 -55 19 33 59 18 17 44 19 37 32 18 14 12 -0.14 111 0 0 18 30 50 18 12 53.0 51 284 -55 19 9 2 17 52 41 19 12 35 17 49 9 -0.14 112 0 0 18 5 34 18 12 45.2 50 285 -54 18 43 49 17 27 23 18 47 23 17 23 51 -0.14 113 0 0 17 40 4 18 12 37.6 49 285 -54 18 18 22 17 1 50 18 21 55 16 58 17 -0.14 114 0 0 17 14 19 18 12 30.0 48 286 -53 17 52 39 16 36 2 17 56 13 16 32 29 -0.14 115 0 0 16 48 19 18 12 22.5 47 286 -53 17 26 42 16 10 0 17 30 16 16 6 27 -0.14 116 0 0 16 22 6 18 12 15.1 46 287 -53 17 0 32 15 43 44 17 4 6 15 40 11 -0.14 117 0 0 15 55 40 18 12 7.8 45 287 -52 16 34 8 15 17 16 16 37 42 15 13 42 -0.13 118 0 0 15 29 1 18 12 0.6 44 287 -52 16 7 31 14 50 34 16 11 5 14 47 1 -0.13 119 0 0 15 2 9 18 11 53.5 43 288 -51 15 40 42 14 23 41 15 44 16 14 20 7 -0.13 120 0 0 14 35 7 18 11 46.6 42 288 -51 15 13 41 13 56 36 15 17 16 13 53 2 -0.13 121 0 0 14 7 53 18 11 39.7 41 288 -50 14 46 29 13 29 20 14 50 4 13 25 46 -0.13 122 0 0 13 40 28 18 11 32.9 40 289 -49 14 19 6 13 1 54 14 22 41 12 58 20 -0.13 123 0 0 13 12 54 18 11 26.3 39 289 -49 13 51 33 12 34 18 13 55 9 12 30 44 -0.13 124 0 0 12 45 10 18 11 19.8 38 289 -48 13 23 51 12 6 33 13 27 27 12 2 58 -0.13 125 0 0 12 17 18 18 11 13.5 37 290 -48 12 56 0 11 38 40 12 59 36 11 35 5 -0.13 126 0 0 11 49 18 18 11 7.2 36 290 -47 12 28 1 11 10 38 12 31 37 11 7 3 -0.13 127 0 0 11 21 10 18 11 1.1 35 290 -46 11 59 54 10 42 29 12 3 30 10 38 54 -0.13 128 0 0 10 52 55 18 10 55.2 34 291 -46 11 31 41 10 14 14 11 35 17 10 10 38 -0.13 129 0 0 10 24 34 18 10 49.4 33 291 -45 11 3 21 9 45 52 11 6 57 9 42 17 -0.13 130 0 0 9 56 8 18 10 43.8 32 291 -44 10 34 55 9 17 25 10 38 31 9 13 50 -0.13 131 0 0 9 27 38 18 10 38.3 31 291 -43 10 6 25 8 48 54 10 10 1 8 45 19 -0.13 132 0 0 8 59 3 18 10 32.9 30 291 -43 9 37 50 8 20 19 9 41 26 8 16 43 -0.13 133 0 0 8 30 24 18 10 27.8 28 292 -42 9 9 12 7 51 40 9 12 48 7 48 5 -0.13 134 0 0 8 1 43 18 10 22.8 27 292 -41 8 40 31 7 22 59 8 44 7 7 19 24 -0.13 135 0 0 7 33 1 18 10 18.0 26 292 -40 8 11 48 6 54 17 8 15 25 6 50 41 -0.13 136 0 0 7 4 17 18 10 13.3 25 292 -40 7 43 4 6 25 33 7 46 40 6 21 58 -0.13 137 0 0 6 35 32 18 10 8.8 24 292 -39 7 14 19 5 56 49 7 17 55 5 53 14 -0.14 138 0 0 6 6 48 18 10 4.5 23 292 -38 6 45 34 5 28 6 6 49 11 5 24 30 -0.14 139 0 0 5 38 5 18 10 0.4 22 293 -37 6 16 51 4 59 23 6 20 27 4 55 48 -0.14 140 0 0 5 9 24 18 9 56.5 21 293 -36 5 48 8 4 30 43 5 51 44 4 27 7 -0.14 141 0 0 4 40 45 18 9 52.7 20 293 -35 5 19 28 4 2 5 5 23 4 3 58 30 -0.14 142 0 0 4 12 9 18 9 49.2 19 293 -35 4 50 52 3 33 30 4 54 27 3 29 55 -0.14 143 0 0 3 43 37 18 9 45.8 18 293 -34 4 22 19 3 5 0 4 25 54 3 1 25 -0.14 144 0 0 3 15 10 18 9 42.6 17 293 -33 3 53 50 2 36 34 3 57 26 2 33 0 -0.14 145 0 0 2 46 49 18 9 39.6 15 293 -32 3 25 27 2 8 15 3 29 2 2 4 40 -0.14 146 0 0 2 18 34 18 9 36.9 14 293 -31 2 57 10 1 40 1 3 0 45 1 36 26 -0.14 147 0 0 1 50 25 18 9 34.3 13 293 -30 2 28 59 1 11 54 2 32 34 1 8 20 -0.14 148 0 0 1 22 24 18 9 31.9 12 293 -29 2 0 57 0 43 56 2 4 31 0 40 22 -0.14 149 0 0 0 54 32 18 9 29.7 11 293 -29 1 33 2 0 16 5 1 36 37 0 12 32 -0.14 150 0 0 0 26 49 18 9 27.8 10 293 -28 1 5 16 - 0 11 36 1 8 51 - 0 15 9 -0.15 151 0 0 - 0 0 45 18 9 26.0 9 293 -27 0 37 40 - 0 39 7 0 41 14 - 0 42 40 -0.15 152 0 0 - 0 28 8 18 9 24.4 8 293 -26 0 10 14 - 1 6 27 0 13 48 - 1 10 1 -0.15 153 0 0 - 0 55 20 18 9 23.1 7 293 -25 - 0 17 0 - 1 33 37 - 0 13 27 - 1 37 10 -0.16 154 0 0 - 1 22 21 18 9 21.9 6 293 -24 - 0 44 3 - 2 0 34 - 0 40 30 - 2 4 7 -0.16 155 0 0 - 1 49 8 18 9 20.9 5 293 -23 - 1 10 54 - 2 27 19 - 1 7 21 - 2 30 52 -0.17 156 0 0 - 2 15 43 18 9 20.2 3 293 -22 - 1 37 32 - 2 53 51 - 1 33 59 - 2 57 23 -0.19 157 0 0 - 2 42 4 18 9 19.7 2 293 -21 - 2 3 56 - 3 20 9 - 2 0 23 - 3 23 40 -0.21 158 0 0 - 3 8 10 18 9 19.3 1 293 -20 - 2 30 6 - 3 46 12 - 2 26 33 - 3 49 43 -0.29 159 0 0 - 3 34 2 18 9 19.2 0 293 -19 - 2 56 0 .. .. .. - 2 52 28 .. .. .. -1.28 Uncertainty in time = +/- 4 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: UCAC4 566-048348 * constellation : Coma Berenices * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 12 05 47.0579 DE: +23 09 46.407 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 12 05 47.0577 DE: +23 09 46.410 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.700,0.500) * V mag [mag]: 11.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (618) Elfriede asteroid class: approx. diameter [km]: 128 approx. diameter ["]: 0.070 distance from Earth [AU]: 2.53110 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#130 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): 0.024", 0.003", 103.963° remarks: * orbital elements for (618)Elfriede : Mean anomaly = 202.9631693241 deg Arg. of pericenter = 230.0011446769 deg Long. of node = 110.8327158329 deg Inclination = 17.0521276801 deg Eccentricity = 0.0691418947 Semimajor axis = 3.1922092105 AU Perihelion dist = 2.9714938175 AU Mag: H = 8.36, G = 0.15 Epoch of elements : MJD 60044.76187500 TDT (2023 Apr 10.7619) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1302023Feb07,11.23,2023,4,10,18.309415,0.030034,0.137869,-6.279456,1.338762,0.001693,-0.002900,0.000001,0.000000 68.3855,23.0332,-94.31,8.05,False UCAC4 566-048348,12.09640496,23.1628908,0.00,11.47,0.00,0.0,0,,12.11642403,23.0332155,2.35,0.00,0,0,0 618,Elfriede,13.68,127.8,2.5311,0,0,-1.580,4.64,,6.8,0 0,202.8315,2023,4,10,230.0011,110.8327,17.0521,0.06914,3.19221,2.97149,8.37,5.0,0.15 1.046,0.0243,0.0031,104,0.0032,Known errors,-1.00,-1,-1,-1 20230410_048348,59990.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:59 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org