IOTA/IOTA-ES occultation update for (2523) Ryba / UCAC4 540-047169 event on 2024 Oct 29, 04:27 UT Visible from Summary ------- On 2024 Oct 29 UT, the 17.747 km diameter asteroid (2523) Ryba will occult a 11.7 mag star in the constellation Cancer for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.45 mag to 17.13 mag (the magnitude of the asteroid) for at most 1.100 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: 98 * date and approx. time of event: 2024 Oct 29, 04:20 - 2024 Oct 29, 04:33 * geocentric midpoint of event [JD]: 2460612.68569292 * magnitude of target star: 11.69 * magnitude drop [mag]: 5.45 * estimated maximum duration [s]: 1.100 * Moon: 9 % sunlit, 54° distance * Sun: 90° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 18 * 1 sigma uncertainty interval [path widths]: +/- 0.37 * 1 sigma uncertainty interval [seconds]: +/- 2.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.003", 117°) * approx speed of asteroid's shadow [km/s]: 16.1207 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 540-047169 by 2523 Ryba on 2024 Oct 29 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 - 77 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 34 20 14 .... - 76 0 0 34 30 45 4 20 56.0 1 69 -68 34 25 29 34 36 0 34 21 39 34 39 50 .... - 75 0 0 34 49 54 4 20 56.2 2 69 -68 34 44 40 34 55 9 34 40 51 34 58 58 -0.22 - 74 0 0 35 8 36 4 20 56.4 3 70 -68 35 3 23 35 13 50 34 59 34 35 17 39 -0.21 - 73 0 0 35 26 51 4 20 56.8 3 71 -68 35 21 38 35 32 4 35 17 50 35 35 52 -0.21 - 72 0 0 35 44 38 4 20 57.2 4 71 -68 35 39 26 35 49 50 35 35 38 35 53 37 -0.21 - 71 0 0 36 1 57 4 20 57.7 5 72 -68 35 56 46 36 7 8 35 52 59 36 10 55 -0.21 - 70 0 0 36 18 49 4 20 58.3 6 72 -67 36 13 38 36 23 59 36 9 52 36 27 45 -0.20 - 69 0 0 36 35 13 4 20 59.0 7 73 -67 36 30 3 36 40 23 36 26 18 36 44 8 -0.20 - 68 0 0 36 51 10 4 20 59.8 8 74 -67 36 46 1 36 56 19 36 42 16 37 0 4 -0.20 - 67 0 0 37 6 39 4 21 0.6 9 74 -66 37 1 31 37 11 47 36 57 47 37 15 32 -0.20 - 66 0 0 37 21 41 4 21 1.5 9 75 -66 37 16 34 37 26 49 37 12 50 37 30 33 -0.20 - 65 0 0 37 36 16 4 21 2.5 10 75 -66 37 31 9 37 41 23 37 27 26 37 45 6 -0.20 - 64 0 0 37 50 24 4 21 3.6 11 76 -65 37 45 18 37 55 30 37 41 35 37 59 13 -0.20 - 63 0 0 38 4 5 4 21 4.8 12 77 -65 37 58 59 38 9 10 37 55 17 38 12 52 -0.20 - 62 0 0 38 17 19 4 21 6.0 13 77 -64 38 12 14 38 22 23 38 8 32 38 26 5 -0.20 - 61 0 0 38 30 6 4 21 7.4 14 78 -64 38 25 2 38 35 9 38 21 21 38 38 51 -0.20 - 60 0 0 38 42 26 4 21 8.8 14 78 -64 38 37 23 38 47 29 38 33 42 38 51 10 -0.20 - 59 0 0 38 54 19 4 21 10.2 15 79 -63 38 49 17 38 59 22 38 45 37 39 3 2 -0.20 - 58 0 0 39 5 46 4 21 11.7 16 80 -63 39 0 45 39 10 48 38 57 5 39 14 28 -0.20 - 57 0 0 39 16 47 4 21 13.3 17 80 -62 39 11 46 39 21 48 39 8 7 39 25 28 -0.20 - 56 0 0 39 27 21 4 21 15.0 18 81 -62 39 22 21 39 32 22 39 18 42 39 36 1 -0.20 - 55 0 0 39 37 29 4 21 16.7 18 82 -61 39 32 29 39 42 29 39 28 51 39 46 8 -0.20 - 54 0 0 39 47 11 4 21 18.5 19 82 -61 39 42 12 39 52 11 39 38 34 39 55 49 -0.20 - 53 0 0 39 56 27 4 21 20.4 20 83 -60 39 51 28 40 1 26 39 47 50 40 5 4 -0.20 - 52 0 0 40 5 17 4 21 22.3 21 84 -59 40 0 18 40 10 15 39 56 41 40 13 53 -0.20 - 51 0 0 40 13 41 4 21 24.3 22 84 -59 40 8 43 40 18 39 40 5 6 40 22 16 -0.20 - 50 0 0 40 21 39 4 21 26.4 22 85 -58 40 16 41 40 26 36 40 13 5 40 30 13 -0.20 - 49 0 0 40 29 11 4 21 28.5 23 86 -58 40 24 14 40 34 9 40 20 38 40 37 45 -0.20 - 48 0 0 40 36 18 4 21 30.7 24 86 -57 40 31 22 40 41 15 40 27 46 40 44 51 -0.20 - 47 0 0 40 43 0 4 21 32.9 25 87 -57 40 38 3 40 47 56 40 34 28 40 51 32 -0.20 - 46 0 0 40 49 15 4 21 35.2 25 88 -56 40 44 19 40 54 11 40 40 44 40 57 47 -0.19 - 45 0 0 40 55 6 4 21 37.6 26 88 -55 40 50 10 41 0 1 40 46 35 41 3 37 -0.19 - 44 0 0 41 0 31 4 21 40.0 27 89 -55 40 55 36 41 5 26 40 52 1 41 9 1 -0.19 - 43 0 0 41 5 31 4 21 42.5 28 90 -54 41 0 36 41 10 26 40 57 1 41 14 0 -0.19 - 42 0 0 41 10 5 4 21 45.1 28 91 -54 41 5 11 41 15 0 41 1 36 41 18 34 -0.19 - 41 0 0 41 14 15 4 21 47.7 29 91 -53 41 9 20 41 19 9 41 5 46 41 22 43 -0.19 - 40 0 0 41 17 59 4 21 50.3 30 92 -52 41 13 5 41 22 53 41 9 31 41 26 27 -0.19 - 39 0 0 41 21 18 4 21 53.0 31 93 -52 41 16 24 41 26 12 41 12 50 41 29 46 -0.19 - 38 0 0 41 24 12 4 21 55.8 31 93 -51 41 19 19 41 29 6 41 15 45 41 32 40 -0.19 - 37 0 0 41 26 41 4 21 58.6 32 94 -50 41 21 48 41 31 35 41 18 14 41 35 9 -0.19 - 36 0 0 41 28 46 4 22 1.5 33 95 -50 41 23 52 41 33 39 41 20 19 41 37 13 -0.19 - 35 0 0 41 30 25 4 22 4.5 34 96 -49 41 25 31 41 35 18 41 21 58 41 38 52 -0.19 - 34 0 0 41 31 39 4 22 7.5 35 96 -48 41 26 46 41 36 32 41 23 12 41 40 6 -0.19 - 33 0 0 41 32 28 4 22 10.5 35 97 -48 41 27 35 41 37 21 41 24 1 41 40 55 -0.19 - 32 0 0 41 32 52 4 22 13.6 36 98 -47 41 27 59 41 37 45 41 24 26 41 41 19 -0.19 - 31 0 0 41 32 51 4 22 16.8 37 99 -46 41 27 58 41 37 44 41 24 25 41 41 18 -0.19 - 30 0 0 41 32 25 4 22 20.0 38 99 -46 41 27 32 41 37 19 41 23 59 41 40 52 -0.19 - 29 0 0 41 31 35 4 22 23.3 38 100 -45 41 26 41 41 36 28 41 23 8 41 40 1 -0.19 - 28 0 0 41 30 19 4 22 26.7 39 101 -44 41 25 25 41 35 12 41 21 52 41 38 46 -0.19 - 27 0 0 41 28 38 4 22 30.1 40 102 -44 41 23 44 41 33 31 41 20 11 41 37 5 -0.19 - 26 0 0 41 26 31 4 22 33.5 41 102 -43 41 21 38 41 31 25 41 18 4 41 34 59 -0.19 - 25 0 0 41 24 0 4 22 37.1 41 103 -42 41 19 6 41 28 54 41 15 33 41 32 27 -0.19 - 24 0 0 41 21 3 4 22 40.6 42 104 -42 41 16 9 41 25 57 41 12 36 41 29 31 -0.19 - 23 0 0 41 17 41 4 22 44.3 43 105 -41 41 12 47 41 22 35 41 9 13 41 26 9 -0.19 - 22 0 0 41 13 54 4 22 48.0 44 106 -40 41 9 0 41 18 48 41 5 25 41 22 22 -0.19 - 21 0 0 41 9 41 4 22 51.7 44 106 -40 41 4 46 41 14 35 41 1 12 41 18 10 -0.19 - 20 0 0 41 5 2 4 22 55.5 45 107 -39 41 0 8 41 9 57 40 56 33 41 13 32 -0.19 - 19 0 0 40 59 58 4 22 59.4 46 108 -38 40 55 3 41 4 53 40 51 29 41 8 28 -0.19 - 18 0 0 40 54 28 4 23 3.3 47 109 -37 40 49 33 40 59 24 40 45 58 41 2 59 -0.19 - 17 0 0 40 48 33 4 23 7.3 47 110 -37 40 43 37 40 53 28 40 40 2 40 57 4 -0.19 - 16 0 0 40 42 11 4 23 11.4 48 110 -36 40 37 15 40 47 7 40 33 39 40 50 43 -0.19 - 15 0 0 40 35 23 4 23 15.5 49 111 -35 40 30 27 40 40 20 40 26 51 40 43 56 -0.19 - 14 0 0 40 28 9 4 23 19.7 50 112 -35 40 23 13 40 33 6 40 19 36 40 36 43 -0.19 - 13 0 0 40 20 29 4 23 23.9 50 113 -34 40 15 32 40 25 27 40 11 55 40 29 3 -0.19 - 12 0 0 40 12 23 4 23 28.2 51 114 -33 40 7 25 40 17 20 40 3 48 40 20 57 -0.19 - 11 0 0 40 3 49 4 23 32.6 52 115 -32 39 58 51 40 8 48 39 55 14 40 12 25 -0.19 - 10 0 0 39 54 49 4 23 37.0 53 116 -32 39 49 51 39 59 48 39 46 13 40 3 26 -0.19 - 9 0 0 39 45 23 4 23 41.5 53 117 -31 39 40 23 39 50 22 39 36 45 39 54 0 -0.19 - 8 0 0 39 35 29 4 23 46.1 54 118 -30 39 30 29 39 40 29 39 26 51 39 44 7 -0.19 - 7 0 0 39 25 8 4 23 50.7 55 119 -29 39 20 8 39 30 9 39 16 29 39 33 48 -0.19 - 6 0 0 39 14 20 4 23 55.4 56 120 -29 39 9 19 39 19 21 39 5 40 39 23 1 -0.19 - 5 0 0 39 3 5 4 24 0.1 57 121 -28 38 58 3 39 8 6 38 54 23 39 11 46 -0.19 - 4 0 0 38 51 21 4 24 5.0 57 122 -27 38 46 19 38 56 24 38 42 39 39 0 4 -0.19 - 3 0 0 38 39 11 4 24 9.8 58 123 -26 38 34 7 38 44 14 38 30 27 38 47 55 -0.19 - 2 0 0 38 26 32 4 24 14.8 59 124 -25 38 21 28 38 31 36 38 17 47 38 35 17 -0.19 - 1 0 0 38 13 25 4 24 19.8 60 125 -25 38 8 20 38 18 30 38 4 39 38 22 11 -0.19 0 0 0 37 59 50 4 24 24.9 60 126 -24 37 54 45 38 4 55 37 51 3 38 8 38 -0.19 1 0 0 37 45 47 4 24 30.1 61 127 -23 37 40 41 37 50 53 37 36 58 37 54 36 -0.19 2 0 0 37 31 15 4 24 35.3 62 128 -22 37 26 8 37 36 22 37 22 25 37 40 5 -0.19 3 0 0 37 16 14 4 24 40.6 63 129 -21 37 11 7 37 21 22 37 7 23 37 25 6 -0.19 4 0 0 37 0 45 4 24 46.0 64 131 -21 36 55 36 37 5 53 36 51 52 37 9 38 -0.19 5 0 0 36 44 47 4 24 51.5 64 132 -20 36 39 37 36 49 56 36 35 52 36 53 41 -0.19 6 0 0 36 28 19 4 24 57.0 65 133 -19 36 23 9 36 33 29 36 19 23 36 37 15 -0.19 7 0 0 36 11 22 4 25 2.6 66 135 -18 36 6 12 36 16 33 36 2 25 36 20 20 -0.19 8 0 0 35 53 56 4 25 8.2 67 136 -17 35 48 45 35 59 8 35 44 58 36 2 56 -0.19 9 0 0 35 36 1 4 25 13.9 68 138 -16 35 30 48 35 41 14 35 27 1 35 45 2 -0.19 10 0 0 35 17 36 4 25 19.7 68 140 -16 35 12 22 35 22 50 35 8 34 35 26 38 -0.19 11 0 0 34 58 41 4 25 25.6 69 141 -15 34 53 27 35 3 56 34 49 38 35 7 45 -0.19 12 0 0 34 39 17 4 25 31.6 70 143 -14 34 34 1 34 44 32 34 30 12 34 48 22 -0.19 13 0 0 34 19 23 4 25 37.6 71 145 -13 34 14 6 34 24 39 34 10 16 34 28 30 -0.19 14 0 0 33 58 58 4 25 43.7 71 147 -12 33 53 41 34 4 16 33 49 50 34 8 7 -0.19 15 0 0 33 38 4 4 25 49.8 72 149 -11 33 32 46 33 43 22 33 28 54 33 47 14 -0.19 16 0 0 33 16 40 4 25 56.0 73 152 -10 33 11 21 33 21 59 33 7 28 33 25 52 -0.19 17 0 0 32 54 46 4 26 2.3 74 154 -9 32 49 25 33 0 6 32 45 32 33 3 59 -0.19 18 0 0 32 32 21 4 26 8.7 74 157 -8 32 27 0 32 37 43 32 23 6 32 41 37 -0.19 19 0 0 32 9 27 4 26 15.1 75 160 -7 32 4 5 32 14 50 32 0 11 32 18 44 -0.19 20 0 0 31 46 3 4 26 21.6 76 163 -7 31 40 40 31 51 26 31 36 45 31 55 22 -0.19 21 0 0 31 22 9 4 26 28.2 76 167 -6 31 16 45 31 27 33 31 12 49 31 31 29 -0.19 22 0 0 30 57 45 4 26 34.8 77 171 -5 30 52 20 31 3 10 30 48 24 31 7 7 -0.19 23 0 0 30 32 52 4 26 41.5 77 175 -4 30 27 26 30 38 18 30 23 28 30 42 16 -0.19 24 0 0 30 7 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11 23 49 3 24 0 20 23 44 56 24 4 27 -0.20 38 0 0 23 22 57 4 28 28.1 75 251 12 23 17 18 23 28 37 23 13 11 23 32 44 -0.20 39 0 0 22 50 50 4 28 35.5 75 254 13 22 45 10 22 56 30 22 41 2 23 0 38 -0.20 40 0 0 22 18 20 4 28 42.9 74 257 14 22 12 39 22 24 1 22 8 31 22 28 9 -0.20 41 0 0 21 45 28 4 28 50.4 73 260 15 21 39 46 21 51 9 21 35 38 21 55 18 -0.20 42 0 0 21 12 14 4 28 57.8 72 263 16 21 6 32 21 17 57 21 2 24 21 22 6 -0.20 43 0 0 20 38 41 4 29 5.2 71 265 17 20 32 58 20 44 24 20 28 49 20 48 33 -0.20 44 0 0 20 4 48 4 29 12.7 70 267 18 19 59 5 20 10 31 19 54 55 20 14 41 -0.20 45 0 0 19 30 37 4 29 20.1 69 269 19 19 24 53 19 36 20 19 20 43 19 40 31 -0.20 46 0 0 18 56 8 4 29 27.5 69 271 20 18 50 24 19 1 52 18 46 13 19 6 3 -0.20 47 0 0 18 21 22 4 29 34.9 68 273 21 18 15 38 18 27 7 18 11 27 18 31 18 -0.20 48 0 0 17 46 21 4 29 42.3 67 274 23 17 40 36 17 52 6 17 36 25 17 56 18 -0.20 49 0 0 17 11 6 4 29 49.7 66 276 24 17 5 20 17 16 51 17 1 9 17 21 3 -0.20 50 0 0 16 35 37 4 29 57.0 64 277 25 16 29 51 16 41 22 16 25 40 16 45 34 -0.20 51 0 0 15 59 55 4 30 4.3 63 278 26 15 54 10 16 5 41 15 49 58 16 9 53 -0.20 52 0 0 15 24 3 4 30 11.5 62 279 27 15 18 17 15 29 49 15 14 5 15 34 1 -0.20 53 0 0 14 48 1 4 30 18.7 61 280 28 14 42 14 14 53 47 14 38 2 14 57 59 -0.20 54 0 0 14 11 50 4 30 25.8 60 281 30 14 6 3 14 17 36 14 1 51 14 21 48 -0.20 55 0 0 13 35 31 4 30 32.9 59 282 31 13 29 44 13 41 17 13 25 32 13 45 30 -0.20 56 0 0 12 59 6 4 30 40.0 58 283 32 12 53 19 13 4 52 12 49 7 13 9 5 -0.20 57 0 0 12 22 36 4 30 46.9 57 284 33 12 16 49 12 28 22 12 12 37 12 32 35 -0.20 58 0 0 11 46 2 4 30 53.8 56 285 34 11 40 15 11 51 48 11 36 3 11 56 1 -0.20 59 0 0 11 9 25 4 31 0.6 55 285 35 11 3 39 11 15 12 10 59 27 11 19 24 -0.20 60 0 0 10 32 47 4 31 7.3 53 286 37 10 27 1 10 38 34 10 22 49 10 42 46 -0.21 61 0 0 9 56 9 4 31 13.9 52 286 38 9 50 23 10 1 56 9 46 11 10 6 8 -0.21 62 0 0 9 19 33 4 31 20.4 51 287 39 9 13 47 9 25 19 9 9 35 9 29 31 -0.21 63 0 0 8 42 58 4 31 26.8 50 287 40 8 37 13 8 48 44 8 33 1 8 52 56 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-0.21 78 0 0 - 0 7 2 4 32 48.5 33 291 58 - 0 12 39 - 0 1 25 - 0 16 44 0 2 41 -0.21 79 0 0 - 0 40 18 4 32 52.8 32 291 59 - 0 45 54 - 0 34 41 - 0 49 59 - 0 30 36 -0.21 80 0 0 - 1 13 13 4 32 57.0 30 292 60 - 1 18 48 - 1 7 37 - 1 22 52 - 1 3 33 -0.21 81 0 0 - 1 45 46 4 33 1.0 29 292 61 - 1 51 20 - 1 40 11 - 1 55 24 - 1 36 8 -0.21 82 0 0 - 2 17 57 4 33 4.9 28 292 62 - 2 23 30 - 2 12 23 - 2 27 33 - 2 8 20 -0.21 83 0 0 - 2 49 44 4 33 8.6 27 292 63 - 2 55 17 - 2 44 11 - 2 59 19 - 2 40 9 -0.21 84 0 0 - 3 21 7 4 33 12.2 26 292 65 - 3 26 39 - 3 15 35 - 3 30 41 - 3 11 33 -0.21 85 0 0 - 3 52 6 4 33 15.6 25 292 66 - 3 57 37 - 3 46 35 - 4 1 38 - 3 42 34 -0.22 86 0 0 - 4 22 39 4 33 18.8 24 292 67 - 4 28 9 - 4 17 9 - 4 32 10 - 4 13 8 -0.22 87 0 0 - 4 52 47 4 33 21.9 22 292 68 - 4 58 16 - 4 47 17 - 5 2 15 - 4 43 17 -0.22 88 0 0 - 5 22 28 4 33 24.9 21 292 69 - 5 27 56 - 5 16 59 - 5 31 55 - 5 13 0 -0.22 89 0 0 - 5 51 42 4 33 27.7 20 291 70 - 5 57 9 - 5 46 14 - 6 1 7 - 5 42 16 -0.22 90 0 0 - 6 20 28 4 33 30.3 19 291 71 - 6 25 54 - 6 15 2 - 6 29 52 - 6 11 4 -0.22 91 0 0 - 6 48 47 4 33 32.8 18 291 72 - 6 54 12 - 6 43 21 - 6 58 9 - 6 39 24 -0.22 92 0 0 - 7 16 37 4 33 35.1 17 291 73 - 7 22 1 - 7 11 12 - 7 25 58 - 7 7 16 -0.22 93 0 0 - 7 43 58 4 33 37.3 16 291 75 - 7 49 22 - 7 38 35 - 7 53 17 - 7 34 39 -0.22 94 0 0 - 8 10 51 4 33 39.3 15 291 76 - 8 16 13 - 8 5 28 - 8 20 8 - 8 1 33 -0.22 95 0 0 - 8 37 14 4 33 41.2 14 291 77 - 8 42 35 - 8 31 52 - 8 46 29 - 8 27 57 -0.22 96 0 0 - 9 3 7 4 33 42.9 13 291 78 - 9 8 28 - 8 57 46 - 9 12 21 - 8 53 52 -0.22 97 0 0 - 9 28 30 4 33 44.5 11 291 79 - 9 33 50 - 9 23 10 - 9 37 43 - 9 19 17 -0.22 98 0 0 - 9 53 23 4 33 45.9 10 290 80 - 9 58 42 - 9 48 4 -10 2 34 - 9 44 12 -0.23 99 0 0 -10 17 45 4 33 47.2 9 290 81 -10 23 3 -10 12 27 -10 26 55 -10 8 36 -0.23 100 0 0 -10 41 37 4 33 48.3 8 290 82 -10 46 54 -10 36 20 -10 50 45 -10 32 29 -0.23 101 0 0 -11 4 58 4 33 49.3 7 290 83 -11 10 14 -10 59 42 -11 14 4 -10 55 51 -0.24 102 0 0 -11 27 48 4 33 50.2 6 290 84 -11 33 3 -11 22 32 -11 36 53 -11 18 43 -0.24 103 0 0 -11 50 6 4 33 50.9 5 289 85 -11 55 21 -11 44 52 -11 59 10 -11 41 3 -0.25 104 0 0 -12 11 54 4 33 51.5 4 289 86 -12 17 7 -12 6 40 -12 20 56 -12 2 52 -0.26 105 0 0 -12 33 10 4 33 51.9 3 289 87 -12 38 23 -12 27 57 -12 42 10 -12 24 9 -0.28 106 0 0 -12 53 54 4 33 52.2 2 289 88 -12 59 6 -12 48 43 -13 2 53 -12 44 55 -0.31 107 0 0 -13 14 8 4 33 52.4 1 289 89 -13 19 18 -13 8 56 -13 23 5 -13 5 10 -0.43 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 540-047169 * constellation : Cancer * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 33 49.4333 DE: +17 54 59.297 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 33 49.4335 DE: +17 54 59.297 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.7 * B mag [mag]: 12.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2523) Ryba asteroid class: approx. diameter [km]: 18 approx. diameter ["]: 0.009 distance from Earth [AU]: 2.87780 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#46 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", 0.003", 116.749° remarks: * orbital elements for (2523)Ryba : Mean anomaly = 261.0152315031 deg Arg. of pericenter = 287.8222980626 deg Long. of node = 282.2931483268 deg Inclination = 8.9071304373 deg Eccentricity = 0.0344232616 Semimajor axis = 3.0184046836 AU Perihelion dist = 2.9145013496 AU Mag: H = 11.45, G = 0.15 Epoch of elements : MJD 60612.18569187 TDT (2024 Oct 29.1857) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#462023Feb11,1.10,2024,10,29,4.456630,0.079897,0.171751,8.242125,-3.854634,-0.005731,0.001474,0.000000,0.000000 23.9588,17.8325,109.08,-13.60,False UCAC4 540-047169,8.56373145,17.9164716,11.97,11.69,11.54,0.0,0,,8.58724516,17.8324714,5.45,5.15,0,0,0 2523,Ryba,17.13,17.747,2.8778,0,0,1.764,-11.78,,1.4,0 0,260.9803,2024,10,29,287.8223,282.2931,8.9071,0.03442,3.01840,2.91450,11.45,5.0,0.15 1.364,0.0153,0.0031,117,0.0031,Known errors,1.08,0,-1,-1 20241029_047169,60140.67 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:59 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org