IOTA/IOTA-ES occultation update for (618) Elfriede / TYC 4698-00467-1 event on 2021 Feb 01, 19:22 UT Visible from Europe Summary ------- On 2021 Feb 01 UT, the 127.8 km diameter asteroid (618) Elfriede will occult a 8.8 mag star in the constellation Cetus for observers along a path across Europe. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.40 mag to 14.15 mag (the magnitude of the asteroid) for at most 5.8 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Hugh Harris, astrometry for the asteroid kindly provided by Bill Owen, 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: 2021 Feb 01, 19:18 - 2021 Feb 01, 19:27 * geocentric midpoint of event [JD]: 2459247.30753750 * magnitude of target star: 8.76 * magnitude drop [mag]: 5.40 * estimated maximum duration [s]: 5.8 * Moon: 80 % sunlit, 149° distance * Sun: 83° distance * rough path description: Europe The occultation path -------------------- * approximate projected width [km]: 142 * 1 sigma uncertainty interval [path widths]: +/- 0.16 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.009) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.008", 67°) * approx speed of asteroid's shadow [km/s]: 21.9331 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 4698-00467-1 by 618 Elfriede on 2021 Feb 1 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 ' " Longitude Longitude Longitude Longitude .. .. .. 69 0 0 .. .. .... .. .. .. ... .. .. 59 32 4 ... .. .. 54 3 3 .... 51 26 18 68 0 0 19 27 11.6 5 258 -37 ... .. .. 43 44 32 ... .. .. 41 49 53 .... 40 49 21 67 0 0 19 27 8.9 9 248 -36 46 54 55 35 56 47 49 19 7 34 33 33 -0.36 Latitude Latitude Latitude Latitude 39 0 0 66 45 45 19 27 8.2 10 246 -36 66 5 33 67 26 10 65 52 54 67 38 59 -0.45 38 0 0 66 37 23 19 27 7.8 10 246 -36 65 57 1 67 17 59 65 44 19 67 30 52 -0.46 37 0 0 66 28 39 19 27 7.4 10 245 -35 65 48 6 67 9 26 65 35 20 67 22 22 -0.46 36 0 0 66 19 30 19 27 6.9 11 244 -35 65 38 46 67 0 29 65 25 57 67 13 30 -0.46 35 0 0 66 9 58 19 27 6.5 11 243 -35 65 29 2 66 51 9 65 16 9 67 4 13 -0.46 34 0 0 66 0 1 19 27 6.0 12 242 -35 65 18 52 66 41 24 65 5 56 66 54 32 -0.46 33 0 0 65 49 38 19 27 5.5 12 241 -35 65 8 17 66 31 15 64 55 16 66 44 27 -0.46 32 0 0 65 38 50 19 27 4.9 13 240 -35 64 57 16 66 20 40 64 44 11 66 33 57 -0.46 31 0 0 65 27 35 19 27 4.4 13 239 -34 64 45 47 66 9 39 64 32 38 66 23 0 -0.46 30 0 0 65 15 54 19 27 3.8 13 238 -34 64 33 52 65 58 12 64 20 38 66 11 37 -0.46 29 0 0 65 3 44 19 27 3.1 14 237 -34 64 21 28 65 46 17 64 8 10 65 59 48 -0.46 28 0 0 64 51 7 19 27 2.5 14 236 -34 64 8 35 65 33 55 63 55 12 65 47 30 -0.46 27 0 0 64 38 0 19 27 1.8 15 235 -34 63 55 13 65 21 4 63 41 45 65 34 44 -0.46 26 0 0 64 24 23 19 27 1.1 15 234 -33 63 41 21 65 7 43 63 27 48 65 21 29 -0.46 25 0 0 64 10 16 19 27 0.3 16 234 -33 63 26 57 64 53 53 63 13 20 65 7 43 -0.46 24 0 0 63 55 38 19 26 59.5 16 233 -33 63 12 2 64 39 31 62 58 19 64 53 28 -0.46 23 0 0 63 40 27 19 26 58.7 17 232 -33 62 56 34 64 24 38 62 42 46 64 38 40 -0.46 22 0 0 63 24 44 19 26 57.9 17 231 -32 62 40 33 64 9 13 62 26 40 64 23 20 -0.46 21 0 0 63 8 27 19 26 57.0 18 230 -32 62 23 58 63 53 14 62 9 59 64 7 27 -0.46 20 0 0 62 51 35 19 26 56.0 18 229 -32 62 6 48 63 36 41 61 52 43 63 51 0 -0.46 19 0 0 62 34 7 19 26 55.0 19 228 -32 61 49 1 63 19 33 61 34 51 63 33 58 -0.46 18 0 0 62 16 3 19 26 54.0 20 227 -31 61 30 38 63 1 48 61 16 21 63 16 20 -0.46 17 0 0 61 57 21 19 26 52.9 20 226 -31 61 11 37 62 43 27 60 57 14 62 58 5 -0.46 16 0 0 61 38 1 19 26 51.8 21 225 -31 60 51 57 62 24 27 60 37 28 62 39 12 -0.46 15 0 0 61 18 2 19 26 50.6 21 224 -30 60 31 37 62 4 48 60 17 1 62 19 39 -0.46 14 0 0 60 57 21 19 26 49.4 22 223 -30 60 10 36 61 44 29 59 55 54 61 59 27 -0.46 13 0 0 60 35 59 19 26 48.1 22 222 -30 59 48 53 61 23 29 59 34 4 61 38 34 -0.46 12 0 0 60 13 55 19 26 46.8 23 222 -29 59 26 27 61 1 46 59 11 32 61 16 58 -0.46 11 0 0 59 51 6 19 26 45.4 24 221 -29 59 3 17 60 39 20 58 48 15 60 54 39 -0.46 10 0 0 59 27 33 19 26 43.9 24 220 -29 58 39 21 60 16 9 58 24 12 60 31 36 -0.46 9 0 0 59 3 13 19 26 42.4 25 219 -28 58 14 39 59 52 12 57 59 24 60 7 46 -0.46 8 0 0 58 38 7 19 26 40.8 26 218 -28 57 49 10 59 27 29 57 33 48 59 43 10 -0.46 7 0 0 58 12 12 19 26 39.1 26 217 -27 57 22 52 59 1 57 57 7 23 59 17 46 -0.46 6 0 0 57 45 27 19 26 37.3 27 216 -27 56 55 45 58 35 36 56 40 8 58 51 32 -0.46 5 0 0 57 17 52 19 26 35.5 28 215 -27 56 27 46 58 8 24 56 12 2 58 24 28 -0.46 4 0 0 56 49 24 19 26 33.6 28 214 -26 55 58 56 57 40 20 55 43 5 57 56 32 -0.46 3 0 0 56 20 4 19 26 31.6 29 213 -26 55 29 12 57 11 24 55 13 14 57 27 43 -0.46 2 0 0 55 49 49 19 26 29.5 30 212 -25 54 58 34 56 41 33 54 42 29 56 58 0 -0.46 1 0 0 55 18 40 19 26 27.3 30 211 -25 54 27 1 56 10 48 54 10 48 56 27 22 -0.46 0 0 0 54 46 34 19 26 25.0 31 210 -24 53 54 32 55 39 5 53 38 12 55 55 48 -0.46 - 1 0 0 54 13 30 19 26 22.7 32 209 -24 53 21 5 55 6 26 53 4 38 55 23 16 -0.46 - 2 0 0 53 39 28 19 26 20.2 33 208 -23 52 46 41 54 32 47 52 30 6 54 49 45 -0.46 - 3 0 0 53 4 27 19 26 17.6 34 207 -22 52 11 16 53 58 9 51 54 35 54 15 15 -0.46 - 4 0 0 52 28 25 19 26 14.9 34 206 -22 51 34 52 53 22 31 51 18 4 53 39 44 -0.46 - 5 0 0 51 51 23 19 26 12.1 35 205 -21 50 57 28 52 45 51 50 40 32 53 3 11 -0.46 - 6 0 0 51 13 18 19 26 9.2 36 204 -21 50 19 2 52 8 10 50 1 59 52 25 37 -0.46 - 7 0 0 50 34 12 19 26 6.1 37 203 -20 49 39 34 51 29 25 49 22 25 51 46 59 -0.46 - 8 0 0 49 54 2 19 26 2.9 38 202 -19 48 59 3 50 49 37 48 41 48 51 7 18 -0.46 - 9 0 0 49 12 49 19 25 59.6 39 201 -19 48 17 30 50 8 45 48 0 8 50 26 33 -0.46 - 10 0 0 48 30 32 19 25 56.2 40 200 -18 47 34 54 49 26 48 47 17 26 49 44 43 -0.46 - 11 0 0 47 47 12 19 25 52.6 40 199 -17 46 51 14 48 43 47 46 33 41 49 1 48 -0.46 - 12 0 0 47 2 48 19 25 48.9 41 198 -16 46 6 32 47 59 42 45 48 53 48 17 49 -0.46 - 13 0 0 46 17 20 19 25 45.0 42 197 -15 45 20 47 47 14 32 45 3 3 47 32 44 -0.46 - 14 0 0 45 30 49 19 25 41.0 43 196 -15 44 34 0 46 28 18 44 16 10 46 46 36 -0.46 - 15 0 0 44 43 15 19 25 36.9 44 194 -14 43 46 11 45 41 0 43 28 16 45 59 23 -0.46 - 16 0 0 43 54 40 19 25 32.5 45 193 -13 42 57 21 44 52 39 42 39 22 45 11 7 -0.46 - 17 0 0 43 5 3 19 25 28.1 46 192 -12 42 7 31 44 3 16 41 49 28 44 21 48 -0.46 - 18 0 0 42 14 26 19 25 23.5 47 191 -11 41 16 42 43 12 51 40 58 36 43 31 27 -0.47 - 19 0 0 41 22 51 19 25 18.7 48 189 -10 40 24 56 42 21 27 40 6 46 42 40 7 -0.47 - 20 0 0 40 30 19 19 25 13.8 49 188 -9 39 32 14 41 29 4 39 14 2 41 47 47 -0.47 - 21 0 0 39 36 51 19 25 8.7 50 186 -8 38 38 39 40 35 45 38 20 24 40 54 31 -0.47 - 22 0 0 38 42 30 19 25 3.5 51 185 -7 37 44 11 39 41 31 37 25 54 40 0 19 -0.47 - 23 0 0 37 47 19 19 24 58.1 52 183 -6 36 48 54 38 46 25 36 30 36 39 5 15 -0.47 - 24 0 0 36 51 19 19 24 52.6 53 182 -5 35 52 51 37 50 29 35 34 31 38 9 20 -0.47 - 25 0 0 35 54 33 19 24 47.0 54 180 -4 34 56 2 36 53 45 34 37 42 37 12 37 -0.47 - 26 0 0 34 57 4 19 24 41.2 55 178 -3 33 58 33 35 56 17 33 40 12 36 15 9 -0.47 - 27 0 0 33 58 55 19 24 35.2 56 176 -2 33 0 24 34 58 8 32 42 4 35 17 0 -0.47 - 28 0 0 33 0 10 19 24 29.1 57 174 -1 32 1 41 33 59 20 31 43 21 34 18 11 -0.47 - 29 0 0 32 0 51 19 24 22.9 58 172 0 31 2 26 32 59 58 30 44 8 33 18 48 -0.47 - 30 0 0 31 1 3 19 24 16.6 58 170 2 30 2 43 32 0 4 29 44 26 32 18 53 -0.47 - 31 0 0 30 0 49 19 24 10.2 59 168 3 29 2 36 30 59 43 28 44 21 31 18 29 -0.47 - 32 0 0 29 0 12 19 24 3.7 60 166 4 28 2 8 29 58 59 27 43 55 30 17 42 -0.47 - 33 0 0 27 59 18 19 23 57.0 61 163 5 27 1 23 28 57 55 26 43 13 29 16 35 -0.47 - 34 0 0 26 58 9 19 23 50.3 61 160 6 26 0 25 27 56 35 25 42 18 28 15 11 -0.47 - 35 0 0 25 56 50 19 23 43.5 62 158 8 24 59 18 26 55 3 24 41 15 27 13 36 -0.47 - 36 0 0 24 55 25 19 23 36.6 63 155 9 23 58 6 25 53 24 23 40 7 26 11 52 -0.47 - 37 0 0 23 53 57 19 23 29.7 63 152 10 22 56 53 24 51 42 22 38 59 25 10 5 -0.47 - 38 0 0 22 52 32 19 23 22.7 64 149 11 21 55 43 23 50 0 21 37 54 24 8 18 -0.47 - 39 0 0 21 51 12 19 23 15.7 64 146 13 20 54 40 22 48 23 20 36 56 23 6 36 -0.48 - 40 0 0 20 50 2 19 23 8.6 64 142 14 19 53 48 21 46 55 19 36 9 22 5 2 -0.48 - 41 0 0 19 49 6 19 23 1.5 64 139 15 18 53 10 20 45 39 18 35 37 21 3 40 -0.48 - 42 0 0 18 48 27 19 22 54.4 64 136 17 17 52 50 19 44 40 17 35 23 20 2 34 -0.48 - 43 0 0 17 48 8 19 22 47.4 64 133 18 16 52 52 18 44 1 16 35 32 19 1 48 -0.48 - 44 0 0 16 48 15 19 22 40.3 64 129 19 15 53 19 17 43 46 15 36 5 18 1 26 -0.48 - 45 0 0 15 48 48 19 22 33.2 64 126 21 14 54 15 16 43 57 14 37 7 17 1 30 -0.48 - 46 0 0 14 49 53 19 22 26.2 64 123 22 13 55 42 15 44 39 13 38 41 16 2 5 -0.48 - 47 0 0 13 51 32 19 22 19.1 64 120 23 12 57 43 14 45 55 12 40 49 15 3 13 -0.48 - 48 0 0 12 53 48 19 22 12.2 63 117 24 12 0 21 13 47 47 11 43 35 14 4 58 -0.48 - 49 0 0 11 56 43 19 22 5.3 63 115 26 11 3 40 12 50 18 10 47 1 13 7 21 -0.48 - 50 0 0 11 0 20 19 21 58.4 62 112 27 10 7 41 11 53 31 9 51 9 12 10 26 -0.48 - 51 0 0 10 4 41 19 21 51.6 62 110 28 9 12 26 10 57 28 8 56 1 11 14 15 -0.48 - 52 0 0 9 9 49 19 21 44.9 61 107 30 8 17 58 10 2 11 8 1 41 10 18 51 -0.48 - 53 0 0 8 15 46 19 21 38.3 60 105 31 7 24 18 9 7 43 7 8 9 9 24 14 -0.48 - 54 0 0 7 22 32 19 21 31.7 59 103 32 6 31 29 8 14 5 6 15 27 8 30 29 -0.48 - 55 0 0 6 30 11 19 21 25.3 59 101 34 5 39 31 7 21 19 5 23 37 7 37 35 -0.49 - 56 0 0 5 38 43 19 21 19.0 58 99 35 4 48 27 6 29 27 4 32 40 6 45 34 -0.49 - 57 0 0 4 48 10 19 21 12.7 57 98 36 3 58 18 5 38 29 3 42 38 5 54 29 -0.49 - 58 0 0 3 58 32 19 21 6.6 56 96 37 3 9 4 4 48 27 2 53 32 5 4 19 -0.49 - 59 0 0 3 9 52 19 21 0.5 55 95 39 2 20 47 3 59 22 2 5 22 4 15 7 -0.49 - 60 0 0 2 22 9 19 20 54.6 54 94 40 1 33 28 3 11 16 1 18 10 3 26 52 -0.49 - 61 0 0 1 35 25 19 20 48.8 53 92 41 0 47 6 2 24 8 0 31 56 2 39 37 -0.49 - 62 0 0 0 49 39 19 20 43.1 52 91 42 0 1 44 1 37 59 - 0 13 20 1 53 21 -0.49 - 63 0 0 0 4 54 19 20 37.6 51 90 44 - 0 42 39 0 52 51 - 0 57 36 1 8 5 -0.49 - 64 0 0 - 0 38 52 19 20 32.1 50 90 45 - 1 26 3 0 8 43 - 1 40 53 0 23 49 -0.49 - 65 0 0 - 1 21 37 19 20 26.8 49 89 46 - 2 8 27 - 0 34 25 - 2 23 10 - 0 19 25 -0.49 - 66 0 0 - 2 3 22 19 20 21.6 48 88 47 - 2 49 50 - 1 16 32 - 3 4 27 - 1 1 39 -0.49 - 67 0 0 - 2 44 7 19 20 16.6 47 87 49 - 3 30 14 - 1 57 38 - 3 44 43 - 1 42 52 -0.49 - 68 0 0 - 3 23 50 19 20 11.6 46 87 50 - 4 9 37 - 2 37 42 - 4 24 0 - 2 23 3 -0.49 - 69 0 0 - 4 2 34 19 20 6.8 45 86 51 - 4 48 0 - 3 16 46 - 5 2 17 - 3 2 14 -0.49 - 70 0 0 - 4 40 16 19 20 2.2 44 86 52 - 5 25 23 - 3 54 49 - 5 39 34 - 3 40 23 -0.49 - 71 0 0 - 5 16 59 19 19 57.6 43 85 53 - 6 1 47 - 4 31 51 - 6 15 52 - 4 17 32 -0.49 - 72 0 0 - 5 52 42 19 19 53.2 42 85 54 - 6 37 10 - 5 7 53 - 6 51 10 - 4 53 40 -0.49 - 73 0 0 - 6 27 24 19 19 48.9 41 85 56 - 7 11 35 - 5 42 55 - 7 25 28 - 5 28 47 -0.49 - 74 0 0 - 7 1 8 19 19 44.7 39 85 57 - 7 45 0 - 6 16 56 - 7 58 48 - 6 2 55 -0.49 - 75 0 0 - 7 33 52 19 19 40.7 38 84 58 - 8 17 27 - 6 49 58 - 8 31 10 - 6 36 2 -0.49 - 76 0 0 - 8 5 38 19 19 36.7 37 84 59 - 8 48 56 - 7 22 1 - 9 2 33 - 7 8 11 -0.49 - 77 0 0 - 8 36 25 19 19 33.0 36 84 60 - 9 19 27 - 7 53 5 - 9 32 59 - 7 39 20 -0.49 - 78 0 0 - 9 6 15 19 19 29.3 35 84 61 - 9 49 1 - 8 23 11 -10 2 28 - 8 9 31 -0.49 - 79 0 0 - 9 35 7 19 19 25.7 34 84 62 -10 17 37 - 8 52 19 -10 31 0 - 8 38 44 -0.49 - 80 0 0 -10 3 2 19 19 22.3 33 84 63 -10 45 17 - 9 20 29 -10 58 35 - 9 6 59 -0.49 - 81 0 0 -10 30 0 19 19 19.0 32 84 64 -11 12 1 - 9 47 43 -11 25 15 - 9 34 18 -0.49 - 82 0 0 -10 56 3 19 19 15.8 31 84 66 -11 37 50 -10 14 0 -11 50 59 -10 0 39 -0.50 - 83 0 0 -11 21 10 19 19 12.7 30 84 67 -12 2 44 -10 39 21 -12 15 48 -10 26 5 -0.50 - 84 0 0 -11 45 23 19 19 9.7 29 84 68 -12 26 43 -11 3 47 -12 39 44 -10 50 35 -0.50 - 85 0 0 -12 8 41 19 19 6.9 28 84 69 -12 49 48 -11 27 17 -13 2 45 -11 14 9 -0.50 - 86 0 0 -12 31 4 19 19 4.2 27 84 70 -13 12 0 -11 49 53 -13 24 53 -11 36 50 -0.50 - 87 0 0 -12 52 35 19 19 1.5 26 84 71 -13 33 19 -12 11 36 -13 46 8 -11 58 36 -0.50 - 88 0 0 -13 13 12 19 18 59.0 25 84 72 -13 53 45 -12 32 24 -14 6 30 -12 19 28 -0.50 - 89 0 0 -13 32 57 19 18 56.6 24 84 73 -14 13 19 -12 52 20 -14 26 1 -12 39 27 -0.50 - 90 0 0 -13 51 50 19 18 54.3 23 84 74 -14 32 1 -13 11 24 -14 44 40 -12 58 34 -0.50 - 91 0 0 -14 9 51 19 18 52.1 22 84 75 -14 49 53 -13 29 35 -15 2 29 -13 16 48 -0.50 - 92 0 0 -14 27 1 19 18 50.0 21 85 76 -15 6 53 -13 46 54 -15 19 27 -13 34 11 -0.50 - 93 0 0 -14 43 20 19 18 48.0 20 85 77 -15 23 4 -14 3 23 -15 35 34 -13 50 43 -0.50 - 94 0 0 -14 58 50 19 18 46.2 19 85 78 -15 38 25 -14 19 1 -15 50 52 -14 6 23 -0.50 - 95 0 0 -15 13 29 19 18 44.4 18 85 79 -15 52 56 -14 33 48 -16 5 21 -14 21 13 -0.50 - 96 0 0 -15 27 19 19 18 42.7 17 85 80 -16 6 38 -14 47 46 -16 19 1 -14 35 13 -0.50 - 97 0 0 -15 40 20 19 18 41.1 16 86 81 -16 19 32 -15 0 54 -16 31 52 -14 48 24 -0.50 - 98 0 0 -15 52 32 19 18 39.6 15 86 82 -16 31 37 -15 13 13 -16 43 56 -15 0 45 -0.50 - 99 0 0 -16 3 56 19 18 38.3 14 86 83 -16 42 55 -15 24 43 -16 55 11 -15 12 17 -0.50 -100 0 0 -16 14 32 19 18 37.0 13 86 84 -16 53 25 -15 35 25 -17 5 39 -15 23 1 -0.50 -101 0 0 -16 24 20 19 18 35.8 12 87 85 -17 3 7 -15 45 19 -17 15 20 -15 32 57 -0.50 -102 0 0 -16 33 20 19 18 34.7 11 87 86 -17 12 3 -15 54 25 -17 24 14 -15 42 4 -0.51 -103 0 0 -16 41 34 19 18 33.7 10 87 87 -17 20 12 -16 2 43 -17 32 22 -15 50 24 -0.51 -104 0 0 -16 49 1 19 18 32.8 9 87 87 -17 27 35 -16 10 14 -17 39 43 -15 57 56 -0.51 -105 0 0 -16 55 41 19 18 31.9 8 88 88 -17 34 11 -16 16 58 -17 46 18 -16 4 41 -0.51 -106 0 0 -17 1 34 19 18 31.2 7 88 89 -17 40 1 -16 22 55 -17 52 7 -16 10 39 -0.52 -107 0 0 -17 6 42 19 18 30.6 6 88 88 -17 45 6 -16 28 5 -17 57 11 -16 15 51 -0.52 -108 0 0 -17 11 3 19 18 30.0 5 89 88 -17 49 24 -16 32 29 -18 1 29 -16 20 16 -0.53 -109 0 0 -17 14 39 19 18 29.6 4 89 87 -17 52 58 -16 36 7 -18 5 2 -16 23 54 -0.54 -110 0 0 -17 17 29 19 18 29.2 3 89 86 -17 55 46 -16 38 59 -18 7 49 -16 26 46 -0.55 -111 0 0 -17 19 33 19 18 29.0 2 89 85 -17 57 49 -16 41 4 -18 9 52 -16 28 52 -0.58 -112 0 0 -17 20 52 19 18 28.8 1 90 84 -17 59 7 -16 42 24 -18 11 9 -16 30 13 -0.64 -113 0 0 -17 21 25 19 18 28.7 1 90 83 -17 59 40 -16 42 58 -18 11 42 -16 30 47 -0.92 Uncertainty in time = +/- 2 secs Prediction of 2020 Dec 31.0 Data for the target star ------------------------ * name: TYC 4698-00467-1 * constellation : Cetus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 02 32 22.5441 DE: -00 18 32.718 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 02 32 22.5439 DE: -00 18 32.719 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 8.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (618) Elfriede asteroid class: approx. diameter [km]: 128 approx. diameter ["]: 0.057 distance from Earth [AU]: 3.07380 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: Preston date of fit: 2020 Dec 12 source of used astrometry: MPC, FASTT, TMO number of used observations: 2751 number of rejected observations: 14 time covered by the observations: 1961 May 13 - 2020 Oct 20 1 sigma uncertainty ellipse (major, minor, PA): 0.015", 0.008", 66.8° remarks: * orbital elements for (618)Elfriede : Mean anomaly = 65.68997720 deg Arg. of pericenter = 229.32327204 deg Long. of node = 110.84293143 deg Inclination = 17.05898966 deg Eccentricity = 0.06954244 Semimajor axis = 3.18939193 AU Perihelion dist = 2.96759385 AU Mag: H = 8.30, G = 0.15 Epoch of elements : MJD 59246.80800000 TDT (2021 Feb 01.8080) ------ occelmnt file for Occult BEGIN ----------------------------------- Preston2020Dec12,5.8,2021,2,1,19.3809,-0.29164,0.31623,9.09310,8.40069,0.00568,0.00174,0.00000,0.00000 -24.5696,-0.2194,-107.30,-16.87,False TYC 4698-00467-1,2.53959555,-0.3090886,0.00,8.76,0.00,0.0,0,,2.55731379,-0.2193968 618,Elfriede,14.15,127.8,3.0738,0,0,1.734,24.03,,6.8 0,65.5502,2021,2,1,229.3233,110.8429,17.0590,0.06954,3.18939,2.96759,8.30,5.0,0.15 1.158,0.0150,0.0080,67,0.0091,Known errors 20210201_0467-1,59214.00 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2020 Dec 31, 00:58 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org