IOTA/IOTA-ES occultation update for (2474) Ruby / TYC 1260-01013-1 event on 2024 Oct 11, 23:04 UT Visible from Summary ------- On 2024 Oct 11 UT, the 21.1529222158735 km diameter asteroid (2474) Ruby will occult a 9.3 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 7.76 mag to 17.07 mag (the magnitude of the asteroid) for at most 2.400 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: 95 * date and approx. time of event: 2024 Oct 11, 22:52 - 2024 Oct 11, 23:16 * geocentric midpoint of event [JD]: 2460595.46160558 * magnitude of target star: 9.31 * magnitude drop [mag]: 7.76 * estimated maximum duration [s]: 2.400 * Moon: 62 % sunlit, 117° distance * Sun: 139° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 21 * 1 sigma uncertainty interval [path widths]: +/- 0.44 * 1 sigma uncertainty interval [seconds]: +/- 2.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.004", 87°) * approx speed of asteroid's shadow [km/s]: 8.8717 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1260-01013-1 by 2474 Ruby on 2024 Oct 11 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 - 35 0 0 -17 30 22 23 16 40.1 0 67 -41 -17 24 4 -17 36 39 -17 18 30 -17 42 13 .... - 34 0 0 -17 5 32 23 16 39.9 1 67 -42 -16 59 14 -17 11 50 -16 53 39 -17 17 26 -0.11 - 33 0 0 -16 40 16 23 16 39.4 3 66 -43 -16 33 57 -16 46 36 -16 28 21 -16 52 12 -0.08 - 32 0 0 -16 14 35 23 16 38.7 4 66 -44 -16 8 15 -16 20 55 -16 2 38 -16 26 32 -0.06 - 31 0 0 -15 48 27 23 16 37.8 5 66 -45 -15 42 6 -15 54 48 -15 36 29 -16 0 26 -0.05 - 30 0 0 -15 21 55 23 16 36.6 6 65 -46 -15 15 33 -15 28 16 -15 9 54 -15 33 55 -0.05 - 29 0 0 -14 54 57 23 16 35.2 7 65 -47 -14 48 34 -15 1 20 -14 42 55 -15 6 59 -0.05 - 28 0 0 -14 27 35 23 16 33.5 8 65 -49 -14 21 12 -14 33 59 -14 15 32 -14 39 39 -0.04 - 27 0 0 -13 59 50 23 16 31.6 9 65 -50 -13 53 25 -14 6 14 -13 47 44 -14 11 55 -0.04 - 26 0 0 -13 31 41 23 16 29.4 10 64 -51 -13 25 15 -13 38 6 -13 19 34 -13 43 48 -0.04 - 25 0 0 -13 3 9 23 16 27.0 11 64 -52 -12 56 43 -13 9 35 -12 51 1 -13 15 18 -0.04 - 24 0 0 -12 34 15 23 16 24.3 12 64 -53 -12 27 48 -12 40 42 -12 22 5 -12 46 25 -0.04 - 23 0 0 -12 5 0 23 16 21.4 13 64 -54 -11 58 32 -12 11 28 -11 52 48 -12 17 11 -0.04 - 22 0 0 -11 35 23 23 16 18.1 14 64 -55 -11 28 55 -11 41 52 -11 23 10 -11 47 36 -0.03 - 21 0 0 -11 5 26 23 16 14.7 15 63 -56 -10 58 57 -11 11 56 -10 53 12 -11 17 41 -0.03 - 20 0 0 -10 35 10 23 16 10.9 16 63 -57 -10 28 40 -10 41 40 -10 22 54 -10 47 25 -0.03 - 19 0 0 -10 4 34 23 16 6.9 17 63 -58 - 9 58 3 -10 11 5 - 9 52 17 -10 16 51 -0.03 - 18 0 0 - 9 33 40 23 16 2.7 19 63 -59 - 9 27 8 - 9 40 11 - 9 21 21 - 9 45 58 -0.03 - 17 0 0 - 9 2 28 23 15 58.2 20 63 -60 - 8 55 56 - 9 9 0 - 8 50 9 - 9 14 48 -0.03 - 16 0 0 - 8 31 0 23 15 53.4 21 63 -62 - 8 24 27 - 8 37 32 - 8 18 39 - 8 43 21 -0.03 - 15 0 0 - 7 59 15 23 15 48.4 22 63 -63 - 7 52 42 - 8 5 48 - 7 46 53 - 8 11 37 -0.03 - 14 0 0 - 7 27 15 23 15 43.1 23 62 -64 - 7 20 41 - 7 33 49 - 7 14 52 - 7 39 38 -0.03 - 13 0 0 - 6 55 1 23 15 37.5 24 62 -65 - 6 48 26 - 7 1 35 - 6 42 36 - 7 7 25 -0.03 - 12 0 0 - 6 22 32 23 15 31.7 25 62 -66 - 6 15 57 - 6 29 7 - 6 10 7 - 6 34 57 -0.03 - 11 0 0 - 5 49 51 23 15 25.7 26 62 -67 - 5 43 16 - 5 56 27 - 5 37 25 - 6 2 17 -0.03 - 10 0 0 - 5 16 58 23 15 19.4 27 62 -68 - 5 10 22 - 5 23 34 - 5 4 31 - 5 29 25 -0.03 - 9 0 0 - 4 43 54 23 15 12.8 29 62 -69 - 4 37 18 - 4 50 30 - 4 31 26 - 4 56 22 -0.03 - 8 0 0 - 4 10 40 23 15 6.0 30 62 -70 - 4 4 3 - 4 17 16 - 3 58 11 - 4 23 8 -0.03 - 7 0 0 - 3 37 16 23 14 59.0 31 62 -71 - 3 30 39 - 3 43 53 - 3 24 47 - 3 49 45 -0.03 - 6 0 0 - 3 3 43 23 14 51.7 32 62 -73 - 2 57 6 - 3 10 21 - 2 51 14 - 3 16 13 -0.03 - 5 0 0 - 2 30 4 23 14 44.2 33 62 -74 - 2 23 26 - 2 36 41 - 2 17 33 - 2 42 34 -0.03 - 4 0 0 - 1 56 17 23 14 36.4 34 62 -75 - 1 49 39 - 2 2 55 - 1 43 46 - 2 8 48 -0.03 - 3 0 0 - 1 22 25 23 14 28.4 35 62 -76 - 1 15 47 - 1 29 3 - 1 9 54 - 1 34 56 -0.03 - 2 0 0 - 0 48 28 23 14 20.2 36 62 -77 - 0 41 50 - 0 55 7 - 0 35 57 - 1 1 0 -0.03 - 1 0 0 - 0 14 27 23 14 11.8 37 62 -78 - 0 7 49 - 0 21 6 - 0 1 56 - 0 26 59 -0.03 0 0 0 0 19 36 23 14 3.2 39 62 -79 0 26 15 0 12 57 0 32 8 0 7 4 -0.03 1 0 0 0 53 42 23 13 54.3 40 62 -80 1 0 20 0 47 3 1 6 14 0 41 9 -0.03 2 0 0 1 27 48 23 13 45.3 41 62 -81 1 34 27 1 21 9 1 40 21 1 15 16 -0.03 3 0 0 2 1 55 23 13 36.0 42 62 -82 2 8 34 1 55 16 2 14 27 1 49 22 -0.03 4 0 0 2 36 1 23 13 26.6 43 62 -84 2 42 39 2 29 22 2 48 33 2 23 28 -0.03 5 0 0 3 10 4 23 13 16.9 44 62 -85 3 16 43 3 3 26 3 22 37 2 57 32 -0.03 6 0 0 3 44 6 23 13 7.1 45 62 -86 3 50 44 3 37 27 3 56 38 3 31 34 -0.03 7 0 0 4 18 3 23 12 57.1 46 62 -86 4 24 42 4 11 25 4 30 35 4 5 31 -0.03 8 0 0 4 51 56 23 12 47.0 47 63 -87 4 58 35 4 45 18 5 4 28 4 39 25 -0.03 9 0 0 5 25 44 23 12 36.6 49 63 -88 5 32 22 5 19 6 5 38 15 5 13 13 -0.03 10 0 0 5 59 25 23 12 26.2 50 63 -88 6 6 3 5 52 47 6 11 56 5 46 55 -0.03 11 0 0 6 32 59 23 12 15.5 51 63 -87 6 39 37 6 26 22 6 45 30 6 20 29 -0.03 12 0 0 7 6 26 23 12 4.8 52 63 -87 7 13 3 6 59 48 7 18 55 6 53 56 -0.03 13 0 0 7 39 43 23 11 53.8 53 63 -86 7 46 20 7 33 6 7 52 12 7 27 14 -0.03 14 0 0 8 12 50 23 11 42.8 54 64 -85 8 19 27 8 6 14 8 25 19 8 0 22 -0.03 15 0 0 8 45 47 23 11 31.7 55 64 -84 8 52 24 8 39 11 8 58 15 8 33 20 -0.04 16 0 0 9 18 33 23 11 20.4 56 64 -83 9 25 9 9 11 57 9 31 0 9 6 6 -0.04 17 0 0 9 51 7 23 11 9.0 57 64 -82 9 57 43 9 44 32 10 3 33 9 38 41 -0.04 18 0 0 10 23 28 23 10 57.5 58 65 -81 10 30 3 10 16 53 10 35 53 10 11 3 -0.04 19 0 0 10 55 36 23 10 45.9 59 65 -79 11 2 10 10 49 1 11 8 0 10 43 11 -0.04 20 0 0 11 27 29 23 10 34.3 61 65 -78 11 34 3 11 20 55 11 39 52 11 15 6 -0.04 21 0 0 11 59 7 23 10 22.5 62 66 -77 12 5 41 11 52 34 12 11 30 11 46 45 -0.04 22 0 0 12 30 30 23 10 10.7 63 66 -76 12 37 3 12 23 57 12 42 51 12 18 9 -0.04 23 0 0 13 1 36 23 9 58.8 64 67 -75 13 8 9 12 55 4 13 13 57 12 49 16 -0.04 24 0 0 13 32 26 23 9 46.8 65 67 -74 13 38 58 13 25 54 13 44 45 13 20 7 -0.04 25 0 0 14 2 58 23 9 34.8 66 67 -73 14 9 30 13 56 27 14 15 16 13 50 41 -0.04 26 0 0 14 33 13 23 9 22.8 67 68 -72 14 39 43 14 26 42 14 45 29 14 20 56 -0.04 27 0 0 15 3 8 23 9 10.7 68 68 -71 15 9 38 14 56 39 15 15 24 14 50 53 -0.04 28 0 0 15 32 45 23 8 58.5 69 69 -70 15 39 14 15 26 16 15 44 59 15 20 31 -0.04 29 0 0 16 2 2 23 8 46.4 70 70 -69 16 8 30 15 55 34 16 14 15 15 49 49 -0.04 30 0 0 16 30 59 23 8 34.2 71 70 -68 16 37 27 16 24 31 16 43 10 16 18 48 -0.04 31 0 0 16 59 35 23 8 22.0 72 71 -67 17 6 2 16 53 8 17 11 45 16 47 25 -0.04 32 0 0 17 27 51 23 8 9.7 73 72 -66 17 34 17 17 21 24 17 39 59 17 15 42 -0.04 33 0 0 17 55 45 23 7 57.5 74 73 -65 18 2 10 17 49 19 18 7 52 17 43 38 -0.04 34 0 0 18 23 17 23 7 45.3 75 74 -64 18 29 42 18 16 52 18 35 23 18 11 11 -0.04 35 0 0 18 50 27 23 7 33.0 76 75 -63 18 56 51 18 44 3 19 2 31 18 38 23 -0.04 36 0 0 19 17 14 23 7 20.8 77 76 -62 19 23 38 19 10 51 19 29 17 19 5 12 -0.04 37 0 0 19 43 39 23 7 8.6 78 77 -61 19 50 1 19 37 17 19 55 40 19 31 38 -0.04 38 0 0 20 9 41 23 6 56.4 79 78 -60 20 16 2 20 3 19 20 21 40 19 57 41 -0.04 39 0 0 20 35 19 23 6 44.2 80 80 -59 20 41 39 20 28 58 20 47 17 20 23 21 -0.05 40 0 0 21 0 33 23 6 32.1 81 82 -58 21 6 53 20 54 13 21 12 30 20 48 37 -0.05 41 0 0 21 25 23 23 6 19.9 82 84 -57 21 31 42 21 19 5 21 37 18 21 13 29 -0.05 42 0 0 21 49 50 23 6 7.8 82 87 -56 21 56 8 21 43 32 22 1 43 21 37 56 -0.05 43 0 0 22 13 51 23 5 55.8 83 91 -55 22 20 9 22 7 34 22 25 43 22 2 0 -0.05 44 0 0 22 37 29 23 5 43.8 84 95 -54 22 43 45 22 31 12 22 49 19 22 25 39 -0.05 45 0 0 23 0 41 23 5 31.8 85 101 -53 23 6 57 22 54 25 23 12 29 22 48 53 -0.05 46 0 0 23 23 28 23 5 19.9 86 109 -52 23 29 43 23 17 14 23 35 15 23 11 42 -0.05 47 0 0 23 45 51 23 5 8.0 86 120 -51 23 52 5 23 39 37 23 57 36 23 34 5 -0.05 48 0 0 24 7 48 23 4 56.2 86 135 -50 24 14 1 24 1 35 24 19 31 23 56 4 -0.06 49 0 0 24 29 19 23 4 44.4 87 154 -49 24 35 32 24 23 7 24 41 1 24 17 37 -0.06 50 0 0 24 50 25 23 4 32.7 87 174 -49 24 56 37 24 44 14 25 2 6 24 38 45 -0.06 51 0 0 25 11 6 23 4 21.1 86 190 -48 25 17 17 25 4 56 25 22 45 24 59 27 -0.06 52 0 0 25 31 21 23 4 9.5 86 203 -47 25 37 31 25 25 11 25 42 58 25 19 44 -0.05 53 0 0 25 51 10 23 3 58.0 85 212 -46 25 57 19 25 45 1 26 2 46 25 39 35 -0.05 54 0 0 26 10 34 23 3 46.5 84 218 -45 26 16 42 26 4 26 26 22 8 25 58 59 -0.05 55 0 0 26 29 31 23 3 35.1 84 223 -44 26 35 38 26 23 24 26 41 4 26 17 59 -0.05 56 0 0 26 48 3 23 3 23.8 83 227 -43 26 54 9 26 41 57 26 59 34 26 36 32 -0.05 57 0 0 27 6 9 23 3 12.6 82 230 -42 27 12 14 27 0 3 27 17 38 26 54 39 -0.05 58 0 0 27 23 49 23 3 1.4 81 233 -41 27 29 53 27 17 44 27 35 17 27 12 20 -0.05 59 0 0 27 41 2 23 2 50.4 80 235 -40 27 47 7 27 34 58 27 52 29 27 29 36 -0.05 60 0 0 27 57 50 23 2 39.4 80 237 -39 28 3 54 27 51 47 28 9 16 27 46 25 -0.05 61 0 0 28 14 12 23 2 28.4 79 238 -39 28 20 15 28 8 10 28 25 36 28 2 49 -0.05 62 0 0 28 30 8 23 2 17.6 78 240 -38 28 36 10 28 24 7 28 41 31 28 18 46 -0.05 63 0 0 28 45 39 23 2 6.8 77 241 -37 28 51 40 28 39 38 28 57 0 28 34 18 -0.05 64 0 0 29 0 43 23 1 56.1 76 242 -36 29 6 43 28 54 43 29 12 3 28 49 23 -0.05 65 0 0 29 15 21 23 1 45.5 75 243 -35 29 21 21 29 9 22 29 26 40 29 4 3 -0.05 66 0 0 29 29 34 23 1 35.0 74 244 -34 29 35 33 29 23 35 29 40 51 29 18 17 -0.05 67 0 0 29 43 20 23 1 24.6 74 245 -33 29 49 19 29 37 22 29 54 36 29 32 5 -0.05 68 0 0 29 56 41 23 1 14.2 73 246 -32 30 2 39 29 50 44 30 7 56 29 45 27 -0.05 69 0 0 30 9 36 23 1 4.0 72 247 -32 30 15 33 30 3 39 30 20 49 29 58 23 -0.05 70 0 0 30 22 5 23 0 53.8 71 248 -31 30 28 2 30 16 9 30 33 18 30 10 54 -0.05 71 0 0 30 34 9 23 0 43.7 70 249 -30 30 40 5 30 28 14 30 45 20 30 22 58 -0.05 72 0 0 30 45 47 23 0 33.7 69 250 -29 30 51 42 30 39 52 30 56 57 30 34 37 -0.05 73 0 0 30 57 0 23 0 23.8 69 250 -28 31 2 54 30 51 5 31 8 8 30 45 51 -0.05 74 0 0 31 7 46 23 0 14.0 68 251 -27 31 13 40 31 1 52 31 18 54 30 56 39 -0.05 75 0 0 31 18 8 23 0 4.3 67 252 -27 31 24 1 31 12 14 31 29 14 31 7 1 -0.05 76 0 0 31 28 3 22 59 54.6 66 253 -26 31 33 56 31 22 11 31 39 9 31 16 58 -0.05 77 0 0 31 37 34 22 59 45.1 65 253 -25 31 43 26 31 31 42 31 48 38 31 26 29 -0.05 78 0 0 31 46 39 22 59 35.6 64 254 -24 31 52 31 31 40 47 31 57 43 31 35 35 -0.05 79 0 0 31 55 19 22 59 26.2 64 255 -23 32 1 10 31 49 27 32 6 21 31 44 16 -0.05 80 0 0 32 3 33 22 59 16.9 63 255 -22 32 9 24 31 57 42 32 14 35 31 52 31 -0.05 81 0 0 32 11 22 22 59 7.7 62 256 -22 32 17 13 32 5 32 32 22 23 32 0 21 -0.05 82 0 0 32 18 46 22 58 58.6 61 257 -21 32 24 36 32 12 56 32 29 46 32 7 46 -0.05 83 0 0 32 25 45 22 58 49.6 60 257 -20 32 31 34 32 19 55 32 36 44 32 14 45 -0.05 84 0 0 32 32 18 22 58 40.7 60 258 -19 32 38 7 32 26 29 32 43 17 32 21 19 -0.05 85 0 0 32 38 27 22 58 31.9 59 259 -18 32 44 16 32 32 38 32 49 25 32 27 28 -0.05 86 0 0 32 44 10 22 58 23.1 58 259 -17 32 49 59 32 38 21 32 55 8 32 33 12 -0.05 87 0 0 32 49 28 22 58 14.5 57 260 -17 32 55 16 32 43 40 33 0 25 32 38 31 -0.05 88 0 0 32 54 21 22 58 5.9 56 260 -16 33 0 9 32 48 33 33 5 18 32 43 25 -0.05 89 0 0 32 58 49 22 57 57.4 55 261 -15 33 4 37 32 53 2 33 9 46 32 47 53 -0.05 90 0 0 33 2 53 22 57 49.1 55 262 -14 33 8 40 32 57 5 33 13 48 32 51 57 -0.05 91 0 0 33 6 31 22 57 40.8 54 262 -13 33 12 18 33 0 43 33 17 26 32 55 35 -0.05 92 0 0 33 9 44 22 57 32.6 53 263 -13 33 15 31 33 3 57 33 20 39 32 58 49 -0.05 93 0 0 33 12 32 22 57 24.5 52 263 -12 33 18 19 33 6 45 33 23 26 33 1 37 -0.05 94 0 0 33 14 55 22 57 16.5 51 264 -11 33 20 42 33 9 8 33 25 49 33 4 1 -0.05 95 0 0 33 16 53 22 57 8.6 51 265 -10 33 22 40 33 11 6 33 27 47 33 5 59 -0.05 96 0 0 33 18 26 22 57 0.7 50 265 -9 33 24 13 33 12 39 33 29 20 33 7 32 -0.05 97 0 0 33 19 34 22 56 53.0 49 266 -9 33 25 21 33 13 48 33 30 28 33 8 40 -0.05 98 0 0 33 20 17 22 56 45.4 48 266 -8 33 26 4 33 14 31 33 31 11 33 9 24 -0.05 99 0 0 33 20 35 22 56 37.8 47 267 -7 33 26 22 33 14 49 33 31 29 33 9 42 -0.05 100 0 0 33 20 28 22 56 30.4 47 267 -6 33 26 15 33 14 41 33 31 22 33 9 34 -0.05 101 0 0 33 19 56 22 56 23.0 46 268 -5 33 25 42 33 14 9 33 30 49 33 9 2 -0.05 102 0 0 33 18 58 22 56 15.7 45 269 -5 33 24 45 33 13 12 33 29 52 33 8 4 -0.05 103 0 0 33 17 36 22 56 8.6 44 269 -4 33 23 22 33 11 49 33 28 30 33 6 42 -0.05 104 0 0 33 15 48 22 56 1.5 43 270 -3 33 21 34 33 10 1 33 26 42 33 4 54 -0.05 105 0 0 33 13 34 22 55 54.5 43 270 -2 33 19 21 33 7 48 33 24 29 33 2 40 -0.05 106 0 0 33 10 56 22 55 47.7 42 271 -1 33 16 43 33 5 9 33 21 51 33 0 1 -0.05 107 0 0 33 7 52 22 55 40.9 41 271 0 33 13 39 33 2 5 33 18 47 32 56 57 -0.05 108 0 0 33 4 22 22 55 34.2 40 272 0 33 10 10 32 58 35 33 15 18 32 53 27 -0.05 109 0 0 33 0 27 22 55 27.6 39 273 1 33 6 15 32 54 40 33 11 23 32 49 32 -0.05 110 0 0 32 56 7 22 55 21.2 38 273 2 33 1 55 32 50 19 33 7 3 32 45 10 -0.05 111 0 0 32 51 20 22 55 14.8 38 274 3 32 57 8 32 45 32 33 2 17 32 40 24 -0.05 112 0 0 32 46 8 22 55 8.5 37 274 4 32 51 57 32 40 20 32 57 5 32 35 11 -0.05 113 0 0 32 40 30 22 55 2.4 36 275 4 32 46 19 32 34 41 32 51 28 32 29 32 -0.05 114 0 0 32 34 26 22 54 56.3 35 275 5 32 40 15 32 28 37 32 45 25 32 23 28 -0.05 115 0 0 32 27 56 22 54 50.3 34 276 6 32 33 46 32 22 7 32 38 55 32 16 57 -0.04 116 0 0 32 21 0 22 54 44.5 33 276 7 32 26 50 32 15 10 32 32 0 32 10 0 -0.04 117 0 0 32 13 37 22 54 38.8 33 277 8 32 19 28 32 7 47 32 24 38 32 2 36 -0.04 118 0 0 32 5 48 22 54 33.1 32 277 9 32 11 39 31 59 58 32 16 50 31 54 47 -0.04 119 0 0 31 57 33 22 54 27.6 31 278 9 32 3 24 31 51 42 32 8 36 31 46 31 -0.04 120 0 0 31 48 51 22 54 22.2 30 279 10 31 54 43 31 42 59 31 59 54 31 37 48 -0.04 121 0 0 31 39 42 22 54 17.0 29 279 11 31 45 35 31 33 50 31 50 47 31 28 38 -0.04 122 0 0 31 30 7 22 54 11.8 28 280 12 31 36 0 31 24 14 31 41 12 31 19 1 -0.04 123 0 0 31 20 4 22 54 6.7 28 280 13 31 25 58 31 14 11 31 31 11 31 8 58 -0.04 124 0 0 31 9 35 22 54 1.8 27 281 14 31 15 29 31 3 41 31 20 42 30 58 27 -0.04 125 0 0 30 58 38 22 53 57.0 26 281 14 31 4 33 30 52 43 31 9 47 30 47 29 -0.04 126 0 0 30 47 14 22 53 52.4 25 282 15 30 53 9 30 41 19 30 58 24 30 36 4 -0.04 127 0 0 30 35 22 22 53 47.8 24 282 16 30 41 18 30 29 27 30 46 34 30 24 11 -0.04 128 0 0 30 23 3 22 53 43.4 23 283 17 30 29 0 30 17 7 30 34 16 30 11 51 -0.04 129 0 0 30 10 16 22 53 39.1 22 283 18 30 16 14 30 4 19 30 21 30 29 59 3 -0.04 130 0 0 29 57 2 22 53 35.0 22 284 19 30 3 0 29 51 4 30 8 17 29 45 47 -0.04 131 0 0 29 43 19 22 53 31.0 21 284 20 29 49 18 29 37 20 29 54 35 29 32 3 -0.04 132 0 0 29 29 8 22 53 27.1 20 285 21 29 35 8 29 23 9 29 40 26 29 17 50 -0.04 133 0 0 29 14 29 22 53 23.4 19 285 21 29 20 29 29 8 29 29 25 49 29 3 10 -0.04 134 0 0 28 59 22 22 53 19.8 18 286 22 29 5 23 28 53 21 29 10 43 28 48 1 -0.04 135 0 0 28 43 46 22 53 16.4 17 286 23 28 49 48 28 37 44 28 55 8 28 32 24 -0.04 136 0 0 28 27 41 22 53 13.1 16 287 24 28 33 44 28 21 39 28 39 5 28 16 18 -0.04 137 0 0 28 11 8 22 53 10.0 15 287 25 28 17 12 28 5 5 28 22 34 27 59 43 -0.04 138 0 0 27 54 6 22 53 7.0 14 287 26 28 0 11 27 48 2 28 5 34 27 42 39 -0.04 139 0 0 27 36 35 22 53 4.3 13 288 27 27 42 41 27 30 30 27 48 4 27 25 7 -0.04 140 0 0 27 18 36 22 53 1.6 12 288 28 27 24 42 27 12 29 27 30 6 27 7 5 -0.04 141 0 0 27 0 7 22 52 59.2 12 289 29 27 6 14 26 54 0 27 11 39 26 48 34 -0.04 142 0 0 26 41 8 22 52 56.9 11 289 30 26 47 16 26 35 0 26 52 43 26 29 34 -0.04 143 0 0 26 21 41 22 52 54.8 10 290 31 26 27 50 26 15 32 26 33 17 26 10 5 -0.05 144 0 0 26 1 44 22 52 52.9 9 290 32 26 7 54 25 55 34 26 13 22 25 50 7 -0.05 145 0 0 25 41 18 22 52 51.1 8 291 32 25 47 29 25 35 7 25 52 58 25 29 39 -0.05 146 0 0 25 20 23 22 52 49.6 7 291 33 25 26 34 25 14 11 25 32 4 25 8 41 -0.05 147 0 0 24 58 58 22 52 48.3 6 291 34 25 5 11 24 52 45 25 10 41 24 47 14 -0.05 148 0 0 24 37 3 22 52 47.1 5 292 35 24 43 17 24 30 49 24 48 48 24 25 18 -0.06 149 0 0 24 14 39 22 52 46.1 4 292 36 24 20 54 24 8 24 24 26 27 24 2 52 -0.07 150 0 0 23 51 46 22 52 45.4 3 293 37 23 58 2 23 45 30 24 3 35 23 39 57 -0.08 151 0 0 23 28 23 22 52 44.9 2 293 38 23 34 40 23 22 6 23 40 14 23 16 32 -0.10 152 0 0 23 4 31 22 52 44.5 1 293 39 23 10 49 22 58 13 23 16 24 22 52 38 -0.19 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 1260-01013-1 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 03 48 28.8991 DE: +21 47 50.203 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 03 48 28.8993 DE: +21 47 50.204 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.3 * B mag [mag]: 9.6 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2474) Ruby asteroid class: approx. diameter [km]: 21 approx. diameter ["]: 0.012 distance from Earth [AU]: 2.37260 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 date of fit: 2023 Apr 24 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): 0.012", 0.004", 87.031° remarks: * orbital elements for (2474)Ruby : Mean anomaly = 143.1420912225 deg Arg. of pericenter = 14.6379687702 deg Long. of node = 237.7758319197 deg Inclination = 7.5259255216 deg Eccentricity = 0.2193484077 Semimajor axis = 2.6862204038 AU Perihelion dist = 2.0970022355 AU Mag: H = 11.95, G = 0.15 Epoch of elements : MJD 60594.96160508 TDT (2024 Oct 11.9616) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Apr24,2.40,2024,10,11,23.078534,-0.018126,0.044016,-4.652400,-1.851944,-0.003694,-0.000945,0.000001,0.000000 50.2861,21.8747,-169.55,-7.49,False TYC 1260-01013-1,3.80802753,21.7972786,9.63,9.31,9.14,0.1,4,,3.83251533,21.8746867,7.76,7.48,0,0,0 2474,Ruby,17.07,21.325,2.3726,0,0,-1.239,-6.86,,1.6,0 0,142.9268,2024,10,11,14.6380,237.7758,7.5259,0.21935,2.68622,2.09700,11.95,5.0,0.15 1.443,0.0123,0.0040,87,0.0055,Known errors,0.95,0,-1,-1 20241011_1013-1,60140.63 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:04 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org