IOTA/IOTA-ES occultation update for (407) Arachne / UCAC4 603-028162 event on 2023 Nov 18, 03:37 UT Visible from Europe, S USA, Mexico Summary ------- On 2023 Nov 18 UT, the 94.1 km diameter asteroid (407) Arachne will occult a 11.5 mag star in the constellation Auriga for observers along a path across Europe, S USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.70 mag to 12.99 mag (the magnitude of the asteroid) for at most 13.580 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 Nov 18, 03:22 - 2023 Nov 18, 03:53 * geocentric midpoint of event [JD]: 2460266.65107271 * magnitude of target star: 11.54 * magnitude drop [mag]: 1.70 * estimated maximum duration [s]: 13.580 * Moon: 25 % sunlit, 154° distance * Sun: 145° distance * rough path description: Europe, S USA, Mexico Additional comments ------------------- RUWE The occultation path -------------------- * approximate projected width [km]: 95 * 1 sigma uncertainty interval [path widths]: +/- 0.03 * 1 sigma uncertainty interval [seconds]: +/- 1.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.001", 97°) * approx speed of asteroid's shadow [km/s]: 6.9285 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 603-028162 by 407 Arachne on 2023 Nov 18 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 -118 0 0 5 9 47 3 52 39.6 0 59 -34 5 39 47 4 39 50 5 41 39 4 37 58 .... -117 0 0 5 45 31 3 52 39.3 2 59 -35 6 15 32 5 15 33 6 17 24 5 13 41 -0.20 -116 0 0 6 21 17 3 52 38.6 3 60 -36 6 51 19 5 51 18 6 53 12 5 49 26 -0.17 -115 0 0 6 57 6 3 52 37.5 4 60 -37 7 27 8 6 27 6 7 29 1 6 25 14 -0.16 -114 0 0 7 32 55 3 52 36.1 5 60 -38 8 2 58 7 2 54 8 4 50 7 1 2 -0.16 -113 0 0 8 8 43 3 52 34.2 6 60 -39 8 38 47 7 38 42 8 40 39 7 36 50 -0.15 -112 0 0 8 44 30 3 52 32.1 7 60 -40 9 14 34 8 14 29 9 16 27 8 12 37 -0.15 -111 0 0 9 20 15 3 52 29.5 8 60 -42 9 50 19 8 50 13 9 52 11 8 48 21 -0.15 -110 0 0 9 55 55 3 52 26.6 10 60 -43 10 25 59 9 25 54 10 27 52 9 24 2 -0.15 -109 0 0 10 31 31 3 52 23.3 11 61 -44 11 1 35 10 1 30 11 3 27 9 59 38 -0.15 -108 0 0 11 7 1 3 52 19.7 12 61 -45 11 37 4 10 37 0 11 38 57 10 35 8 -0.15 -107 0 0 11 42 24 3 52 15.8 13 61 -46 12 12 27 11 12 24 12 14 19 11 10 32 -0.15 -106 0 0 12 17 39 3 52 11.5 14 61 -47 12 47 41 11 47 40 12 49 34 11 45 48 -0.15 -105 0 0 12 52 46 3 52 6.9 15 61 -48 13 22 47 12 22 48 13 24 39 12 20 56 -0.15 -104 0 0 13 27 43 3 52 1.9 16 62 -49 13 57 42 12 57 46 13 59 34 12 55 54 -0.15 -103 0 0 14 2 29 3 51 56.6 17 62 -50 14 32 27 13 32 33 14 34 19 13 30 41 -0.15 -102 0 0 14 37 3 3 51 51.1 19 62 -51 15 7 0 14 7 9 15 8 52 14 5 17 -0.15 -101 0 0 15 11 25 3 51 45.2 20 62 -52 15 41 20 14 41 32 15 43 12 14 39 41 -0.15 -100 0 0 15 45 33 3 51 39.0 21 63 -53 16 15 27 15 15 42 16 17 18 15 13 51 -0.15 - 99 0 0 16 19 27 3 51 32.6 22 63 -54 16 49 19 15 49 39 16 51 11 15 47 47 -0.15 - 98 0 0 16 53 7 3 51 25.8 23 63 -55 17 22 56 16 23 20 17 24 48 16 21 29 -0.15 - 97 0 0 17 26 30 3 51 18.8 24 64 -56 17 56 17 16 56 46 17 58 9 16 54 54 -0.15 - 96 0 0 17 59 37 3 51 11.5 25 64 -57 18 29 22 17 29 55 18 31 13 17 28 4 -0.15 - 95 0 0 18 32 27 3 51 4.0 26 64 -58 19 2 9 18 2 47 19 4 0 18 0 56 -0.15 - 94 0 0 19 4 59 3 50 56.2 27 65 -59 19 34 38 18 35 22 19 36 29 18 33 31 -0.15 - 93 0 0 19 37 12 3 50 48.2 28 65 -60 20 6 49 19 7 38 20 8 40 19 5 47 -0.15 - 92 0 0 20 9 6 3 50 39.9 29 65 -61 20 38 40 19 39 35 20 40 31 19 37 44 -0.15 - 91 0 0 20 40 41 3 50 31.5 30 66 -62 21 10 12 20 11 12 21 12 2 20 9 22 -0.15 - 90 0 0 21 11 55 3 50 22.8 31 66 -63 21 41 23 20 42 29 21 43 13 20 40 39 -0.15 - 89 0 0 21 42 48 3 50 13.9 32 67 -64 22 12 13 21 13 26 22 14 3 21 11 36 -0.15 - 88 0 0 22 13 20 3 50 4.8 33 67 -65 22 42 41 21 44 1 22 44 31 21 42 11 -0.15 - 87 0 0 22 43 30 3 49 55.5 34 68 -66 23 12 48 22 14 14 23 14 38 22 12 25 -0.15 - 86 0 0 23 13 18 3 49 46.0 35 68 -66 23 42 32 22 44 5 23 44 22 22 42 16 -0.15 - 85 0 0 23 42 43 3 49 36.4 36 68 -67 24 11 54 23 13 34 24 13 43 23 11 45 -0.15 - 84 0 0 24 11 45 3 49 26.6 37 69 -68 24 40 52 23 42 39 24 42 41 23 40 51 -0.15 - 83 0 0 24 40 23 3 49 16.6 38 69 -69 25 9 27 24 11 22 25 11 16 24 9 33 -0.15 - 82 0 0 25 8 38 3 49 6.5 39 70 -70 25 37 38 24 39 40 25 39 27 24 37 52 -0.15 - 81 0 0 25 36 29 3 48 56.3 40 71 -70 26 5 25 25 7 35 26 7 14 25 5 47 -0.15 - 80 0 0 26 3 55 3 48 45.9 41 71 -71 26 32 48 25 35 5 26 34 36 25 33 17 -0.15 - 79 0 0 26 30 57 3 48 35.4 42 72 -72 26 59 46 26 2 11 27 1 34 26 0 23 -0.15 - 78 0 0 26 57 34 3 48 24.7 43 72 -72 27 26 19 26 28 51 27 28 7 26 27 4 -0.15 - 77 0 0 27 23 46 3 48 13.9 44 73 -73 27 52 27 26 55 7 27 54 14 26 53 20 -0.16 - 76 0 0 27 49 32 3 48 3.1 45 73 -73 28 18 10 27 20 58 28 19 57 27 19 11 -0.16 - 75 0 0 28 14 54 3 47 52.1 46 74 -74 28 43 27 27 46 23 28 45 14 27 44 37 -0.16 - 74 0 0 28 39 49 3 47 41.0 47 75 -74 29 8 18 28 11 23 29 10 5 28 9 36 -0.16 - 73 0 0 29 4 19 3 47 29.9 48 75 -75 29 32 44 28 35 57 29 34 31 28 34 11 -0.16 - 72 0 0 29 28 23 3 47 18.6 49 76 -75 29 56 44 29 0 5 29 58 30 28 58 19 -0.16 - 71 0 0 29 52 2 3 47 7.3 50 77 -76 30 20 18 29 23 47 30 22 4 29 22 2 -0.16 - 70 0 0 30 15 14 3 46 55.9 50 77 -76 30 43 27 29 47 3 30 45 12 29 45 18 -0.16 - 69 0 0 30 38 0 3 46 44.5 51 78 -76 31 6 9 30 9 54 31 7 54 30 8 8 -0.16 - 68 0 0 31 0 20 3 46 32.9 52 79 -76 31 28 25 30 32 18 31 30 10 30 30 33 -0.16 - 67 0 0 31 22 14 3 46 21.4 53 80 -76 31 50 14 30 54 16 31 51 59 30 52 31 -0.16 - 66 0 0 31 43 42 3 46 9.7 54 80 -76 32 11 38 31 15 47 32 13 23 31 14 3 -0.16 - 65 0 0 32 4 43 3 45 58.0 55 81 -76 32 32 36 31 36 53 32 34 20 31 35 9 -0.16 - 64 0 0 32 25 19 3 45 46.3 56 82 -76 32 53 7 31 57 33 32 54 51 31 55 49 -0.16 - 63 0 0 32 45 28 3 45 34.5 56 83 -76 33 13 13 32 17 46 33 14 56 32 16 2 -0.16 - 62 0 0 33 5 11 3 45 22.7 57 84 -76 33 32 52 32 37 33 33 34 35 32 35 50 -0.16 - 61 0 0 33 24 28 3 45 10.9 58 85 -76 33 52 5 32 56 54 33 53 49 32 55 11 -0.16 - 60 0 0 33 43 20 3 44 59.0 59 85 -75 34 10 52 33 15 49 34 12 36 33 14 6 -0.16 - 59 0 0 34 1 45 3 44 47.1 60 86 -75 34 29 14 33 34 18 34 30 57 33 32 36 -0.16 - 58 0 0 34 19 44 3 44 35.2 61 87 -75 34 47 9 33 52 21 34 48 52 33 50 39 -0.17 - 57 0 0 34 37 18 3 44 23.2 61 88 -74 35 4 39 34 9 59 35 6 21 34 8 17 -0.17 - 56 0 0 34 54 25 3 44 11.3 62 89 -74 35 21 43 34 27 10 35 23 25 34 25 28 -0.17 - 55 0 0 35 11 7 3 43 59.3 63 90 -73 35 38 21 34 43 56 35 40 3 34 42 14 -0.17 - 54 0 0 35 27 24 3 43 47.3 64 92 -73 35 54 34 35 0 16 35 56 16 34 58 35 -0.17 - 53 0 0 35 43 15 3 43 35.3 64 93 -72 36 10 22 35 16 10 36 12 3 35 14 29 -0.17 - 52 0 0 35 58 40 3 43 23.3 65 94 -72 36 25 44 35 31 40 36 27 25 35 29 59 -0.17 - 51 0 0 36 13 41 3 43 11.3 66 95 -71 36 40 40 35 46 43 36 42 21 35 45 2 -0.17 - 50 0 0 36 28 16 3 42 59.3 67 96 -71 36 55 12 36 1 22 36 56 53 35 59 41 -0.17 - 49 0 0 36 42 26 3 42 47.3 67 98 -70 37 9 19 36 15 35 37 10 59 36 13 55 -0.17 - 48 0 0 36 56 11 3 42 35.3 68 99 -70 37 23 0 36 29 23 37 24 41 36 27 43 -0.17 - 47 0 0 37 9 31 3 42 23.3 69 101 -69 37 36 17 36 42 47 37 37 58 36 41 7 -0.17 - 46 0 0 37 22 26 3 42 11.3 69 102 -68 37 49 10 36 55 45 37 50 50 36 54 5 -0.17 - 45 0 0 37 34 57 3 41 59.3 70 104 -68 38 1 37 37 8 19 38 3 17 37 6 39 -0.17 - 44 0 0 37 47 3 3 41 47.3 71 105 -67 38 13 40 37 20 28 38 15 20 37 18 48 -0.17 - 43 0 0 37 58 45 3 41 35.3 71 107 -66 38 25 19 37 32 12 38 26 59 37 30 33 -0.17 - 42 0 0 38 10 2 3 41 23.4 72 109 -66 38 36 34 37 43 32 38 38 13 37 41 53 -0.17 - 41 0 0 38 20 55 3 41 11.4 73 111 -65 38 47 24 37 54 28 38 49 3 37 52 49 -0.17 - 40 0 0 38 31 24 3 40 59.4 73 113 -65 38 57 50 38 5 0 38 59 29 38 3 21 -0.17 - 39 0 0 38 41 29 3 40 47.5 74 115 -64 39 7 53 38 15 7 39 9 31 38 13 29 -0.17 - 38 0 0 38 51 10 3 40 35.6 75 118 -63 39 17 31 38 24 51 39 19 10 38 23 13 -0.17 - 37 0 0 39 0 27 3 40 23.7 75 120 -63 39 26 46 38 34 11 39 28 25 38 32 32 -0.17 - 36 0 0 39 9 21 3 40 11.8 76 123 -62 39 35 37 38 43 6 39 37 16 38 41 28 -0.18 - 35 0 0 39 17 51 3 39 59.9 76 125 -61 39 44 5 38 51 38 39 45 43 38 50 1 -0.18 - 34 0 0 39 25 57 3 39 48.0 77 128 -61 39 52 9 38 59 47 39 53 47 38 58 9 -0.18 - 33 0 0 39 33 40 3 39 36.1 77 131 -60 39 59 50 39 7 32 40 1 28 39 5 54 -0.18 - 32 0 0 39 41 0 3 39 24.3 78 135 -59 40 7 8 39 14 53 40 8 46 39 13 16 -0.18 - 31 0 0 39 47 56 3 39 12.5 78 138 -59 40 14 2 39 21 52 40 15 40 39 20 14 -0.18 - 30 0 0 39 54 29 3 39 0.7 78 142 -58 40 20 34 39 28 27 40 22 11 39 26 49 -0.18 - 29 0 0 40 0 39 3 38 48.9 79 146 -57 40 26 42 39 34 38 40 28 19 39 33 1 -0.18 - 28 0 0 40 6 26 3 38 37.1 79 150 -57 40 32 27 39 40 27 40 34 5 39 38 50 -0.18 - 27 0 0 40 11 50 3 38 25.3 79 154 -56 40 37 50 39 45 52 40 39 27 39 44 15 -0.18 - 26 0 0 40 16 51 3 38 13.6 79 159 -55 40 42 50 39 50 55 40 44 27 39 49 18 -0.18 - 25 0 0 40 21 30 3 38 1.9 80 163 -55 40 47 27 39 55 35 40 49 4 39 53 58 -0.18 - 24 0 0 40 25 45 3 37 50.2 80 168 -54 40 51 41 39 59 51 40 53 18 39 58 14 -0.18 - 23 0 0 40 29 38 3 37 38.5 80 173 -53 40 55 33 40 3 45 40 57 10 40 2 8 -0.18 - 22 0 0 40 33 8 3 37 26.8 80 178 -52 40 59 2 40 7 16 41 0 39 40 5 40 -0.18 - 21 0 0 40 36 16 3 37 15.2 80 183 -52 41 2 9 40 10 25 41 3 46 40 8 48 -0.18 - 20 0 0 40 39 1 3 37 3.5 80 187 -51 41 4 53 40 13 10 41 6 30 40 11 34 -0.18 - 19 0 0 40 41 23 3 36 51.9 79 192 -50 41 7 15 40 15 33 41 8 51 40 13 57 -0.18 - 18 0 0 40 43 23 3 36 40.3 79 196 -50 41 9 14 40 17 34 41 10 51 40 15 57 -0.18 - 17 0 0 40 45 0 3 36 28.7 79 201 -49 41 10 51 40 19 11 41 12 27 40 17 35 -0.18 - 16 0 0 40 46 15 3 36 17.1 79 205 -48 41 12 5 40 20 26 41 13 42 40 18 50 -0.18 - 15 0 0 40 47 7 3 36 5.6 78 209 -48 41 12 57 40 21 19 41 14 34 40 19 43 -0.18 - 14 0 0 40 47 37 3 35 54.1 78 212 -47 41 13 27 40 21 49 41 15 3 40 20 12 -0.18 - 13 0 0 40 47 44 3 35 42.5 78 216 -46 41 13 34 40 21 56 41 15 11 40 20 20 -0.18 - 12 0 0 40 47 29 3 35 31.0 77 219 -46 41 13 19 40 21 41 41 14 56 40 20 5 -0.18 - 11 0 0 40 46 51 3 35 19.6 77 222 -45 41 12 41 40 21 3 41 14 18 40 19 27 -0.18 - 10 0 0 40 45 51 3 35 8.1 76 225 -44 41 11 41 40 20 3 41 13 18 40 18 26 -0.18 - 9 0 0 40 44 28 3 34 56.6 76 228 -43 41 10 19 40 18 40 41 11 56 40 17 3 -0.18 - 8 0 0 40 42 43 3 34 45.2 75 230 -43 41 8 34 40 16 54 41 10 11 40 15 17 -0.18 - 7 0 0 40 40 35 3 34 33.8 75 233 -42 41 6 27 40 14 45 41 8 4 40 13 9 -0.18 - 6 0 0 40 38 5 3 34 22.4 74 235 -41 41 3 57 40 12 14 41 5 34 40 10 38 -0.18 - 5 0 0 40 35 12 3 34 11.0 74 237 -41 41 1 5 40 9 20 41 2 42 40 7 44 -0.18 - 4 0 0 40 31 56 3 33 59.6 73 239 -40 40 57 50 40 6 4 40 59 27 40 4 27 -0.18 - 3 0 0 40 28 17 3 33 48.3 72 241 -39 40 54 12 40 2 24 40 55 49 40 0 47 -0.18 - 2 0 0 40 24 16 3 33 37.0 72 243 -39 40 50 12 39 58 22 40 51 49 39 56 45 -0.17 - 1 0 0 40 19 52 3 33 25.6 71 245 -38 40 45 49 39 53 56 40 47 26 39 52 19 -0.17 0 0 0 40 15 5 3 33 14.3 71 247 -37 40 41 3 39 49 8 40 42 40 39 47 31 -0.17 1 0 0 40 9 54 3 33 3.1 70 248 -36 40 35 54 39 43 56 40 37 32 39 42 19 -0.17 2 0 0 40 4 21 3 32 51.8 69 250 -36 40 30 23 39 38 22 40 32 0 39 36 45 -0.17 3 0 0 39 58 25 3 32 40.6 69 251 -35 40 24 28 39 32 24 40 26 5 39 30 46 -0.17 4 0 0 39 52 5 3 32 29.3 68 253 -34 40 18 10 39 26 2 40 19 48 39 24 25 -0.17 5 0 0 39 45 22 3 32 18.1 67 254 -34 40 11 29 39 19 18 40 13 7 39 17 40 -0.17 6 0 0 39 38 16 3 32 6.9 67 256 -33 40 4 25 39 12 10 40 6 2 39 10 32 -0.17 7 0 0 39 30 46 3 31 55.8 66 257 -32 39 56 57 39 4 38 39 58 35 39 3 0 -0.17 8 0 0 39 22 53 3 31 44.6 65 258 -31 39 49 5 38 56 42 39 50 43 38 55 5 -0.17 9 0 0 39 14 36 3 31 33.5 65 259 -31 39 40 50 38 48 23 39 42 29 38 46 45 -0.17 10 0 0 39 5 55 3 31 22.4 64 260 -30 39 32 12 38 39 40 39 33 50 38 38 2 -0.17 11 0 0 38 56 50 3 31 11.3 63 262 -29 39 23 9 38 30 33 39 24 48 38 28 55 -0.17 12 0 0 38 47 21 3 31 0.3 62 263 -28 39 13 43 38 21 1 39 15 22 38 19 23 -0.17 13 0 0 38 37 28 3 30 49.3 62 264 -28 39 3 52 38 11 6 39 5 31 38 9 27 -0.17 14 0 0 38 27 11 3 30 38.3 61 265 -27 38 53 38 38 0 46 38 55 17 37 59 7 -0.17 15 0 0 38 16 29 3 30 27.3 60 266 -26 38 42 59 37 50 2 38 44 38 37 48 23 -0.17 16 0 0 38 5 23 3 30 16.4 60 267 -25 38 31 56 37 38 53 38 33 35 37 37 14 -0.17 17 0 0 37 53 53 3 30 5.5 59 268 -25 38 20 28 37 27 19 38 22 7 37 25 40 -0.17 18 0 0 37 41 57 3 29 54.6 58 269 -24 38 8 35 37 15 21 38 10 15 37 13 41 -0.17 19 0 0 37 29 37 3 29 43.7 57 270 -23 37 56 18 37 2 57 37 57 58 37 1 18 -0.17 20 0 0 37 16 51 3 29 32.9 57 271 -22 37 43 36 36 50 9 37 45 16 36 48 29 -0.17 21 0 0 37 3 41 3 29 22.2 56 271 -21 37 30 29 36 36 55 37 32 9 36 35 15 -0.17 22 0 0 36 50 5 3 29 11.5 55 272 -21 37 16 56 36 23 16 37 18 37 36 21 36 -0.17 23 0 0 36 36 4 3 29 0.8 54 273 -20 37 2 58 36 9 12 37 4 39 36 7 32 -0.17 24 0 0 36 21 37 3 28 50.1 54 274 -19 36 48 35 35 54 42 36 50 16 35 53 1 -0.17 25 0 0 36 6 45 3 28 39.5 53 275 -18 36 33 46 35 39 46 36 35 28 35 38 5 -0.17 26 0 0 35 51 27 3 28 29.0 52 276 -17 36 18 32 35 24 25 36 20 13 35 22 44 -0.17 27 0 0 35 35 43 3 28 18.5 51 276 -17 36 2 52 35 8 37 36 4 33 35 6 56 -0.17 28 0 0 35 19 34 3 28 8.1 50 277 -16 35 46 46 34 52 24 35 48 28 34 50 42 -0.17 29 0 0 35 2 58 3 27 57.7 50 278 -15 35 30 14 34 35 44 35 31 56 34 34 2 -0.16 30 0 0 34 45 56 3 27 47.4 49 279 -14 35 13 15 34 18 38 35 14 58 34 16 56 -0.16 31 0 0 34 28 27 3 27 37.1 48 279 -13 34 55 51 34 1 6 34 57 33 33 59 24 -0.16 32 0 0 34 10 32 3 27 26.9 47 280 -12 34 38 0 33 43 7 34 39 43 33 41 25 -0.16 33 0 0 33 52 11 3 27 16.8 46 281 -12 34 19 42 33 24 42 34 21 25 33 22 59 -0.16 34 0 0 33 33 23 3 27 6.8 45 281 -11 34 0 59 33 5 50 34 2 42 33 4 7 -0.16 35 0 0 33 14 9 3 26 56.8 45 282 -10 33 41 48 32 46 31 33 43 32 32 44 48 -0.16 36 0 0 32 54 27 3 26 46.9 44 283 -9 33 22 11 32 26 46 33 23 54 32 25 2 -0.16 37 0 0 32 34 19 3 26 37.2 43 283 -8 33 2 7 32 6 34 33 3 51 32 4 50 -0.16 38 0 0 32 13 44 3 26 27.5 42 284 -7 32 41 36 31 45 55 32 43 20 31 44 11 -0.16 39 0 0 31 52 42 3 26 17.9 41 285 -6 32 20 38 31 24 48 32 22 23 31 23 4 -0.16 40 0 0 31 31 13 3 26 8.4 40 285 -6 31 59 14 31 3 15 32 0 58 31 1 31 -0.16 41 0 0 31 9 18 3 25 59.0 39 286 -5 31 37 22 30 41 15 31 39 7 30 39 31 -0.16 42 0 0 30 46 55 3 25 49.7 38 286 -4 31 15 3 30 18 48 31 16 49 30 17 3 -0.16 43 0 0 30 24 5 3 25 40.5 38 287 -3 30 52 18 29 55 54 30 54 4 29 54 9 -0.16 44 0 0 30 0 48 3 25 31.5 37 288 -2 30 29 6 29 32 34 30 30 52 29 30 48 -0.16 45 0 0 29 37 5 3 25 22.6 36 288 -1 30 5 26 29 8 46 30 7 13 29 7 0 -0.16 46 0 0 29 12 54 3 25 13.8 35 289 0 29 41 20 28 44 31 29 43 7 28 42 45 -0.16 47 0 0 28 48 17 3 25 5.1 34 289 1 29 16 47 28 19 50 29 18 34 28 18 3 -0.16 48 0 0 28 23 13 3 24 56.7 33 290 2 28 51 48 27 54 42 28 53 35 27 52 55 -0.16 49 0 0 27 57 43 3 24 48.3 32 290 3 28 26 21 27 29 7 28 28 9 27 27 20 -0.16 50 0 0 27 31 46 3 24 40.1 31 291 4 28 0 29 27 3 6 28 2 16 27 1 19 -0.16 51 0 0 27 5 23 3 24 32.1 30 291 5 27 34 10 26 36 38 27 35 57 26 34 51 -0.16 52 0 0 26 38 33 3 24 24.3 29 292 6 27 7 25 26 9 45 27 9 13 26 7 57 -0.16 53 0 0 26 11 18 3 24 16.6 28 292 7 26 40 13 25 42 26 26 42 2 25 40 38 -0.16 54 0 0 25 43 37 3 24 9.1 27 293 8 26 12 36 25 14 40 26 14 25 25 12 52 -0.16 55 0 0 25 15 31 3 24 1.9 26 293 9 25 44 34 24 46 30 25 46 23 24 44 41 -0.16 56 0 0 24 46 59 3 23 54.8 25 294 10 25 16 6 24 17 54 25 17 55 24 16 6 -0.16 57 0 0 24 18 2 3 23 47.9 24 294 11 24 47 13 23 48 54 24 49 3 23 47 5 -0.16 58 0 0 23 48 41 3 23 41.3 23 295 12 24 17 56 23 19 29 24 19 46 23 17 39 -0.16 59 0 0 23 18 56 3 23 34.9 22 295 13 23 48 15 22 49 39 23 50 4 22 47 50 -0.16 60 0 0 22 48 46 3 23 28.7 21 295 14 23 18 9 22 19 27 23 19 59 22 17 37 -0.16 61 0 0 22 18 14 3 23 22.7 20 296 15 22 47 40 21 48 50 22 49 30 21 47 0 -0.16 62 0 0 21 47 18 3 23 17.0 19 296 16 22 16 48 21 17 51 22 18 38 21 16 1 -0.16 63 0 0 21 16 0 3 23 11.6 18 297 17 21 45 33 20 46 30 21 47 24 20 44 39 -0.16 64 0 0 20 44 20 3 23 6.4 17 297 18 21 13 56 20 14 46 21 15 47 20 12 56 -0.16 65 0 0 20 12 18 3 23 1.5 16 297 19 20 41 58 19 42 41 20 43 49 19 40 51 -0.16 66 0 0 19 39 56 3 22 56.9 15 298 20 20 9 39 19 10 16 20 11 30 19 8 25 -0.16 67 0 0 19 7 13 3 22 52.5 14 298 21 19 36 59 18 37 30 19 38 50 18 35 39 -0.16 68 0 0 18 34 11 3 22 48.5 13 298 22 19 3 59 18 4 25 19 5 51 18 2 34 -0.16 69 0 0 18 0 50 3 22 44.8 12 299 23 18 30 41 17 31 1 18 32 33 17 29 10 -0.16 70 0 0 17 27 10 3 22 41.3 10 299 24 17 57 4 16 57 19 17 58 56 16 55 27 -0.16 71 0 0 16 53 13 3 22 38.2 9 299 25 17 23 10 16 23 20 17 25 2 16 21 28 -0.17 72 0 0 16 19 0 3 22 35.4 8 299 27 16 48 58 15 49 4 16 50 50 15 47 12 -0.17 73 0 0 15 44 30 3 22 33.0 7 300 28 16 14 31 15 14 32 16 16 23 15 12 40 -0.17 74 0 0 15 9 46 3 22 30.9 6 300 29 15 39 48 14 39 45 15 41 41 14 37 53 -0.18 75 0 0 14 34 47 3 22 29.1 5 300 30 15 4 51 14 4 45 15 6 44 14 2 53 -0.19 76 0 0 13 59 35 3 22 27.7 4 301 31 14 29 41 13 29 31 14 31 34 13 27 39 -0.21 77 0 0 13 24 11 3 22 26.6 3 301 32 13 54 19 12 54 6 13 56 11 12 52 13 -0.23 78 0 0 12 48 35 3 22 25.9 2 301 33 13 18 44 12 18 29 13 20 37 12 16 36 -0.30 79 0 0 12 12 50 3 22 25.6 0 301 34 12 43 0 11 42 42 12 44 53 11 40 49 -0.77 Uncertainty in time = +/- 2 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: UCAC4 603-028162 * constellation : Auriga * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 57 20.0164 DE: +30 31 51.964 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 57 20.0164 DE: +30 31 51.964 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (407) Arachne asteroid class: approx. diameter [km]: 94 approx. diameter ["]: 0.079 distance from Earth [AU]: 1.64880 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#66 date of fit: 2023 Oct 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): 0.011", 0.001", 97.386° remarks: * orbital elements for (407)Arachne : Mean anomaly = 53.7350163182 deg Arg. of pericenter = 81.3317571828 deg Long. of node = 294.4581809158 deg Inclination = 7.5193307145 deg Eccentricity = 0.0708513727 Semimajor axis = 2.6249957184 AU Perihelion dist = 2.4390111683 AU Mag: H = 9.22, G = 0.15 Epoch of elements : MJD 60266.15097222 TDT (2023 Nov 18.1510) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#662023Oct09,13.58,2023,11,18,3.625745,-0.012037,0.170013,-3.900795,-0.277469,-0.003242,-0.000599,0.000001,0.000000 -21.5964,30.5341,121.88,-19.14,False UCAC4 603-028162,5.95556011,30.5311012,0.00,11.54,0.00,0.0,0,,5.98138757,30.5340635,1.70,0.00,0,0,0 407,Arachne,12.99,94.100,1.6488,0,0,-1.610,-1.48,,6.2,0 0,53.7000,2023,11,18,81.3318,294.4582,7.5193,0.07085,2.62500,2.43901,9.13,5.0,0.15 1.031,0.0113,0.0010,97,0.0114,Known errors,-1.00,0,-1,-1 20231118_028162,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:06 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org