IOTA/IOTA-ES occultation update for (15804) Yenisei / UCAC4 539-020886 event on 2024 Dec 02, 04:30 UT Visible from Summary ------- On 2024 Dec 02 UT, the 10.151 km diameter asteroid (15804) Yenisei will occult a 10.0 mag star in the constellation Orion for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.47 mag to 17.44 mag (the magnitude of the asteroid) for at most 0.990 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: 72 * date and approx. time of event: 2024 Dec 02, 04:19 - 2024 Dec 02, 04:40 * geocentric midpoint of event [JD]: 2460646.68766216 * magnitude of target star: 9.97 * magnitude drop [mag]: 7.47 * estimated maximum duration [s]: 0.990 * Moon: 1 % sunlit, 168° distance * Sun: 161° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 10 * 1 sigma uncertainty interval [path widths]: +/- 0.80 * 1 sigma uncertainty interval [seconds]: +/- 2.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.023, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.004", 83°) * approx speed of asteroid's shadow [km/s]: 10.2400 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 539-020886 by 15804 Yenisei on 2024 Dec 2 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 -146 0 0 10 25 18 4 40 33.6 0 72 -19 10 28 13 10 22 24 10 32 50 10 17 47 .... -145 0 0 10 44 39 4 40 33.5 1 72 -20 10 47 33 10 41 45 10 52 10 10 37 8 -0.15 -144 0 0 11 3 51 4 40 33.2 2 72 -21 11 6 46 11 0 57 11 11 22 10 56 21 -0.12 -143 0 0 11 22 56 4 40 32.7 3 72 -22 11 25 50 11 20 1 11 30 26 11 15 25 -0.11 -142 0 0 11 41 51 4 40 31.9 4 73 -23 11 44 45 11 38 57 11 49 21 11 34 21 -0.10 -141 0 0 12 0 38 4 40 31.0 5 73 -24 12 3 31 11 57 44 12 8 8 11 53 8 -0.10 -140 0 0 12 19 15 4 40 29.9 6 73 -25 12 22 8 12 16 21 12 26 44 12 11 45 -0.10 -139 0 0 12 37 42 4 40 28.6 7 73 -26 12 40 36 12 34 48 12 45 11 12 30 13 -0.09 -138 0 0 12 55 59 4 40 27.1 8 74 -27 12 58 53 12 53 6 13 3 28 12 48 30 -0.09 -137 0 0 13 14 6 4 40 25.4 9 74 -29 13 17 0 13 11 13 13 21 35 13 6 38 -0.09 -136 0 0 13 32 3 4 40 23.5 10 74 -30 13 34 56 13 29 9 13 39 31 13 24 34 -0.09 -135 0 0 13 49 48 4 40 21.4 11 74 -31 13 52 41 13 46 55 13 57 16 13 42 20 -0.09 -134 0 0 14 7 22 4 40 19.2 12 74 -32 14 10 15 14 4 29 14 14 50 13 59 54 -0.09 -133 0 0 14 24 45 4 40 16.7 13 75 -33 14 27 38 14 21 52 14 32 12 14 17 17 -0.09 -132 0 0 14 41 56 4 40 14.1 14 75 -34 14 44 48 14 39 3 14 49 23 14 34 29 -0.09 -131 0 0 14 58 54 4 40 11.3 15 75 -35 15 1 47 14 56 2 15 6 21 14 51 28 -0.09 -130 0 0 15 15 41 4 40 8.4 16 75 -36 15 18 33 15 12 48 15 23 7 15 8 15 -0.09 -129 0 0 15 32 15 4 40 5.2 17 76 -37 15 35 7 15 29 22 15 39 41 15 24 49 -0.09 -128 0 0 15 48 36 4 40 1.9 18 76 -37 15 51 28 15 45 44 15 56 1 15 41 10 -0.09 -127 0 0 16 4 44 4 39 58.5 19 76 -38 16 7 36 16 1 52 16 12 9 15 57 19 -0.09 -126 0 0 16 20 39 4 39 54.8 20 77 -39 16 23 31 16 17 47 16 28 3 16 13 14 -0.09 -125 0 0 16 36 20 4 39 51.1 21 77 -40 16 39 12 16 33 29 16 43 45 16 28 56 -0.09 -124 0 0 16 51 48 4 39 47.1 22 77 -41 16 54 40 16 48 56 16 59 12 16 44 24 -0.09 -123 0 0 17 7 2 4 39 43.0 23 77 -42 17 9 53 17 4 11 17 14 25 16 59 39 -0.09 -122 0 0 17 22 2 4 39 38.7 24 78 -43 17 24 53 17 19 11 17 29 25 17 14 39 -0.09 -121 0 0 17 36 48 4 39 34.3 25 78 -44 17 39 39 17 33 57 17 44 10 17 29 25 -0.09 -120 0 0 17 51 19 4 39 29.8 26 78 -45 17 54 10 17 48 28 17 58 41 17 43 57 -0.09 -119 0 0 18 5 36 4 39 25.1 27 79 -46 18 8 26 18 2 45 18 12 58 17 58 14 -0.09 -118 0 0 18 19 38 4 39 20.2 28 79 -47 18 22 28 18 16 47 18 26 59 18 12 16 -0.09 -117 0 0 18 33 25 4 39 15.2 29 79 -48 18 36 15 18 30 35 18 40 46 18 26 4 -0.09 -116 0 0 18 46 57 4 39 10.1 30 80 -49 18 49 48 18 44 7 18 54 18 18 39 37 -0.09 -115 0 0 19 0 14 4 39 4.8 31 80 -50 19 3 5 18 57 24 19 7 35 18 52 54 -0.09 -114 0 0 19 13 16 4 38 59.4 32 80 -51 19 16 6 19 10 26 19 20 36 19 5 56 -0.09 -113 0 0 19 26 3 4 38 53.9 33 81 -52 19 28 53 19 23 13 19 33 22 19 18 43 -0.09 -112 0 0 19 38 34 4 38 48.3 34 81 -53 19 41 23 19 35 44 19 45 53 19 31 15 -0.09 -111 0 0 19 50 49 4 38 42.5 35 82 -54 19 53 39 19 48 0 19 58 8 19 43 31 -0.09 -110 0 0 20 2 49 4 38 36.6 36 82 -55 20 5 38 20 0 0 20 10 7 19 55 31 -0.09 -109 0 0 20 14 33 4 38 30.6 36 82 -56 20 17 22 20 11 44 20 21 51 20 7 15 -0.09 -108 0 0 20 26 1 4 38 24.4 37 83 -57 20 28 50 20 23 12 20 33 18 20 18 43 -0.09 -107 0 0 20 37 13 4 38 18.2 38 83 -58 20 40 2 20 34 24 20 44 30 20 29 56 -0.09 -106 0 0 20 48 9 4 38 11.8 39 83 -59 20 50 57 20 45 20 20 55 25 20 40 52 -0.09 -105 0 0 20 58 48 4 38 5.3 40 84 -59 21 1 37 20 56 0 21 6 5 20 51 32 -0.09 -104 0 0 21 9 12 4 37 58.8 41 84 -60 21 12 0 21 6 23 21 16 28 21 1 56 -0.09 -103 0 0 21 19 19 4 37 52.1 42 85 -61 21 22 7 21 16 31 21 26 35 21 12 3 -0.09 -102 0 0 21 29 10 4 37 45.3 43 85 -62 21 31 58 21 26 22 21 36 25 21 21 54 -0.09 -101 0 0 21 38 44 4 37 38.4 44 86 -63 21 41 32 21 35 56 21 45 59 21 31 29 -0.09 -100 0 0 21 48 2 4 37 31.4 45 86 -64 21 50 50 21 45 14 21 55 17 21 40 47 -0.09 - 99 0 0 21 57 4 4 37 24.3 46 87 -65 21 59 51 21 54 16 22 4 18 21 49 49 -0.09 - 98 0 0 22 5 48 4 37 17.1 47 87 -66 22 8 36 22 3 1 22 13 2 21 58 34 -0.09 - 97 0 0 22 14 16 4 37 9.9 47 87 -67 22 17 4 22 11 29 22 21 30 22 7 3 -0.09 - 96 0 0 22 22 28 4 37 2.5 48 88 -68 22 25 15 22 19 40 22 29 41 22 15 15 -0.09 - 95 0 0 22 30 23 4 36 55.0 49 88 -69 22 33 10 22 27 35 22 37 36 22 23 10 -0.09 - 94 0 0 22 38 1 4 36 47.5 50 89 -69 22 40 48 22 35 13 22 45 14 22 30 48 -0.09 - 93 0 0 22 45 22 4 36 39.9 51 89 -70 22 48 9 22 42 35 22 52 35 22 38 9 -0.10 - 92 0 0 22 52 26 4 36 32.2 52 90 -71 22 55 13 22 49 39 22 59 39 22 45 14 -0.10 - 91 0 0 22 59 14 4 36 24.4 53 90 -72 23 2 1 22 56 27 23 6 26 22 52 2 -0.10 - 90 0 0 23 5 44 4 36 16.5 54 91 -73 23 8 31 23 2 58 23 12 56 22 58 33 -0.10 - 89 0 0 23 11 58 4 36 8.6 55 92 -74 23 14 45 23 9 11 23 19 10 23 4 47 -0.10 - 88 0 0 23 17 55 4 36 0.6 56 92 -75 23 20 42 23 15 8 23 25 6 23 10 44 -0.10 - 87 0 0 23 23 35 4 35 52.5 56 93 -76 23 26 21 23 20 48 23 30 46 23 16 24 -0.10 - 86 0 0 23 28 58 4 35 44.3 57 93 -76 23 31 44 23 26 11 23 36 9 23 21 47 -0.10 - 85 0 0 23 34 4 4 35 36.1 58 94 -77 23 36 50 23 31 17 23 41 14 23 26 53 -0.10 - 84 0 0 23 38 53 4 35 27.8 59 94 -78 23 41 39 23 36 6 23 46 3 23 31 42 -0.10 - 83 0 0 23 43 25 4 35 19.5 60 95 -79 23 46 11 23 40 38 23 50 35 23 36 14 -0.10 - 82 0 0 23 47 39 4 35 11.1 61 96 -80 23 50 26 23 44 53 23 54 50 23 40 29 -0.10 - 81 0 0 23 51 37 4 35 2.6 62 96 -81 23 54 24 23 48 51 23 58 48 23 44 27 -0.10 - 80 0 0 23 55 18 4 34 54.0 63 97 -82 23 58 4 23 52 32 24 2 28 23 48 8 -0.10 - 79 0 0 23 58 42 4 34 45.4 63 98 -82 24 1 28 23 55 56 24 5 52 23 51 32 -0.10 - 78 0 0 24 1 49 4 34 36.8 64 99 -83 24 4 35 23 59 3 24 8 59 23 54 39 -0.10 - 77 0 0 24 4 39 4 34 28.1 65 99 -84 24 7 25 24 1 53 24 11 48 23 57 29 -0.10 - 76 0 0 24 7 11 4 34 19.3 66 100 -85 24 9 57 24 4 25 24 14 21 24 0 2 -0.10 - 75 0 0 24 9 27 4 34 10.5 67 101 -86 24 12 13 24 6 41 24 16 37 24 2 18 -0.10 - 74 0 0 24 11 26 4 34 1.6 68 102 -86 24 14 12 24 8 40 24 18 35 24 4 16 -0.10 - 73 0 0 24 13 7 4 33 52.7 69 103 -87 24 15 53 24 10 21 24 20 17 24 5 58 -0.10 - 72 0 0 24 14 32 4 33 43.8 69 104 -87 24 17 18 24 11 46 24 21 41 24 7 23 -0.10 - 71 0 0 24 15 39 4 33 34.7 70 105 -87 24 18 25 24 12 54 24 22 49 24 8 30 -0.10 - 70 0 0 24 16 30 4 33 25.7 71 106 -87 24 19 16 24 13 44 24 23 39 24 9 21 -0.10 - 69 0 0 24 17 3 4 33 16.6 72 107 -87 24 19 49 24 14 18 24 24 12 24 9 54 -0.10 - 68 0 0 24 17 20 4 33 7.5 73 108 -86 24 20 6 24 14 34 24 24 29 24 10 11 -0.10 - 67 0 0 24 17 19 4 32 58.3 74 110 -85 24 20 5 24 14 33 24 24 28 24 10 10 -0.10 - 66 0 0 24 17 2 4 32 49.1 74 111 -85 24 19 47 24 14 16 24 24 11 24 9 53 -0.10 - 65 0 0 24 16 27 4 32 39.8 75 113 -84 24 19 13 24 13 41 24 23 36 24 9 18 -0.10 - 64 0 0 24 15 35 4 32 30.6 76 114 -83 24 18 21 24 12 50 24 22 45 24 8 26 -0.10 - 63 0 0 24 14 27 4 32 21.3 77 116 -82 24 17 13 24 11 41 24 21 36 24 7 18 -0.10 - 62 0 0 24 13 1 4 32 11.9 78 118 -82 24 15 47 24 10 16 24 20 11 24 5 52 -0.10 - 61 0 0 24 11 19 4 32 2.5 78 121 -81 24 14 5 24 8 33 24 18 28 24 4 10 -0.10 - 60 0 0 24 9 20 4 31 53.1 79 123 -80 24 12 6 24 6 34 24 16 29 24 2 10 -0.10 - 59 0 0 24 7 3 4 31 43.7 80 126 -79 24 9 49 24 4 17 24 14 13 23 59 54 -0.10 - 58 0 0 24 4 30 4 31 34.2 80 130 -78 24 7 16 24 1 44 24 11 40 23 57 21 -0.10 - 57 0 0 24 1 40 4 31 24.8 81 134 -77 24 4 26 23 58 54 24 8 50 23 54 30 -0.10 - 56 0 0 23 58 33 4 31 15.3 82 138 -76 24 1 19 23 55 47 24 5 43 23 51 23 -0.10 - 55 0 0 23 55 9 4 31 5.7 82 143 -76 23 57 56 23 52 23 24 2 19 23 47 59 -0.10 - 54 0 0 23 51 29 4 30 56.2 83 149 -75 23 54 15 23 48 43 23 58 39 23 44 19 -0.10 - 53 0 0 23 47 31 4 30 46.6 83 156 -74 23 50 18 23 44 45 23 54 42 23 40 21 -0.10 - 52 0 0 23 43 17 4 30 37.0 84 164 -73 23 46 4 23 40 31 23 50 28 23 36 7 -0.10 - 51 0 0 23 38 46 4 30 27.5 84 172 -72 23 41 33 23 36 0 23 45 57 23 31 36 -0.10 - 50 0 0 23 33 59 4 30 17.8 84 182 -71 23 36 45 23 31 12 23 41 10 23 26 48 -0.10 - 49 0 0 23 28 54 4 30 8.2 84 191 -70 23 31 41 23 26 8 23 36 5 23 21 43 -0.10 - 48 0 0 23 23 33 4 29 58.6 84 200 -69 23 26 20 23 20 47 23 30 45 23 16 22 -0.10 - 47 0 0 23 17 56 4 29 49.0 84 209 -69 23 20 43 23 15 9 23 25 7 23 10 44 -0.10 - 46 0 0 23 12 2 4 29 39.3 83 216 -68 23 14 48 23 9 15 23 19 13 23 4 50 -0.10 - 45 0 0 23 5 51 4 29 29.7 83 223 -67 23 8 38 23 3 4 23 13 3 22 58 39 -0.10 - 44 0 0 22 59 24 4 29 20.0 82 229 -66 23 2 10 22 56 37 23 6 36 22 52 11 -0.10 - 43 0 0 22 52 40 4 29 10.4 82 234 -65 22 55 27 22 49 53 22 59 52 22 45 27 -0.10 - 42 0 0 22 45 40 4 29 0.8 81 238 -64 22 48 27 22 42 52 22 52 52 22 38 27 -0.10 - 41 0 0 22 38 23 4 28 51.1 80 242 -63 22 41 10 22 35 36 22 45 36 22 31 10 -0.10 - 40 0 0 22 30 50 4 28 41.5 80 245 -62 22 33 37 22 28 3 22 38 3 22 23 37 -0.10 - 39 0 0 22 23 1 4 28 31.8 79 248 -62 22 25 48 22 20 13 22 30 14 22 15 47 -0.10 - 38 0 0 22 14 55 4 28 22.2 78 251 -61 22 17 43 22 12 8 22 22 9 22 7 42 -0.10 - 37 0 0 22 6 34 4 28 12.6 77 253 -60 22 9 21 22 3 46 22 13 48 21 59 20 -0.10 - 36 0 0 21 57 56 4 28 3.0 76 255 -59 22 0 44 21 55 8 22 5 10 21 50 41 -0.10 - 35 0 0 21 49 2 4 27 53.4 76 257 -58 21 51 50 21 46 14 21 56 17 21 41 47 -0.10 - 34 0 0 21 39 52 4 27 43.9 75 258 -57 21 42 40 21 37 4 21 47 7 21 32 37 -0.10 - 33 0 0 21 30 26 4 27 34.3 74 260 -56 21 33 14 21 27 38 21 37 41 21 23 11 -0.10 - 32 0 0 21 20 44 4 27 24.8 73 261 -55 21 23 33 21 17 56 21 28 0 21 13 29 -0.10 - 31 0 0 21 10 47 4 27 15.3 72 263 -54 21 13 35 21 7 58 21 18 3 21 3 31 -0.10 - 30 0 0 21 0 34 4 27 5.8 71 264 -53 21 3 22 20 57 45 21 7 50 20 53 17 -0.10 - 29 0 0 20 50 5 4 26 56.4 71 265 -52 20 52 54 20 47 16 20 57 22 20 42 48 -0.10 - 28 0 0 20 39 21 4 26 47.0 70 266 -52 20 42 9 20 36 32 20 46 38 20 32 4 -0.10 - 27 0 0 20 28 21 4 26 37.6 69 267 -51 20 31 10 20 25 32 20 35 38 20 21 3 -0.10 - 26 0 0 20 17 5 4 26 28.2 68 268 -50 20 19 55 20 14 16 20 24 23 20 9 48 -0.10 - 25 0 0 20 5 35 4 26 18.9 67 269 -49 20 8 24 20 2 46 20 12 53 19 58 17 -0.10 - 24 0 0 19 53 49 4 26 9.6 66 269 -48 19 56 39 19 51 0 20 1 8 19 46 31 -0.10 - 23 0 0 19 41 49 4 26 0.4 65 270 -47 19 44 38 19 38 59 19 49 8 19 34 30 -0.10 - 22 0 0 19 29 33 4 25 51.2 64 271 -46 19 32 23 19 26 43 19 36 52 19 22 14 -0.10 - 21 0 0 19 17 3 4 25 42.1 63 272 -45 19 19 53 19 14 13 19 24 22 19 9 43 -0.10 - 20 0 0 19 4 18 4 25 33.0 62 272 -44 19 7 8 19 1 28 19 11 38 18 56 58 -0.10 - 19 0 0 18 51 18 4 25 24.0 62 273 -43 18 54 8 18 48 28 18 58 38 18 43 58 -0.10 - 18 0 0 18 38 4 4 25 15.0 61 274 -42 18 40 54 18 35 14 18 45 25 18 30 43 -0.10 - 17 0 0 18 24 35 4 25 6.1 60 274 -41 18 27 26 18 21 45 18 31 57 18 17 14 -0.09 - 16 0 0 18 10 53 4 24 57.3 59 275 -40 18 13 43 18 8 2 18 18 14 18 3 31 -0.09 - 15 0 0 17 56 56 4 24 48.5 58 275 -39 17 59 47 17 54 6 18 4 18 17 49 35 -0.09 - 14 0 0 17 42 46 4 24 39.7 57 276 -39 17 45 37 17 39 55 17 50 8 17 35 24 -0.09 - 13 0 0 17 28 22 4 24 31.1 56 276 -38 17 31 13 17 25 31 17 35 44 17 20 59 -0.09 - 12 0 0 17 13 44 4 24 22.5 55 277 -37 17 16 36 17 10 53 17 21 7 17 6 21 -0.09 - 11 0 0 16 58 53 4 24 14.0 54 277 -36 17 1 45 16 56 2 17 6 17 16 51 30 -0.09 - 10 0 0 16 43 49 4 24 5.6 53 278 -35 16 46 41 16 40 58 16 51 13 16 36 26 -0.09 - 9 0 0 16 28 32 4 23 57.3 52 278 -34 16 31 24 16 25 41 16 35 57 16 21 8 -0.09 - 8 0 0 16 13 3 4 23 49.0 51 279 -33 16 15 54 16 10 11 16 20 27 16 5 38 -0.09 - 7 0 0 15 57 20 4 23 40.8 50 279 -32 16 0 12 15 54 29 16 4 45 15 49 56 -0.09 - 6 0 0 15 41 26 4 23 32.8 49 279 -31 15 44 18 15 38 34 15 48 51 15 34 1 -0.09 - 5 0 0 15 25 19 4 23 24.8 48 280 -30 15 28 11 15 22 27 15 32 45 15 17 54 -0.09 - 4 0 0 15 9 0 4 23 16.9 47 280 -29 15 11 53 15 6 8 15 16 26 15 1 35 -0.09 - 3 0 0 14 52 30 4 23 9.1 46 280 -28 14 55 22 14 49 38 14 59 56 14 45 4 -0.09 - 2 0 0 14 35 48 4 23 1.5 45 281 -27 14 38 41 14 32 56 14 43 15 14 28 22 -0.09 - 1 0 0 14 18 55 4 22 53.9 44 281 -26 14 21 48 14 16 3 14 26 22 14 11 28 -0.09 0 0 0 14 1 51 4 22 46.5 44 281 -25 14 4 44 13 58 58 14 9 18 13 54 24 -0.09 1 0 0 13 44 37 4 22 39.1 43 282 -24 13 47 30 13 41 44 13 52 4 13 37 9 -0.09 2 0 0 13 27 12 4 22 31.9 42 282 -23 13 30 5 13 24 19 13 34 39 13 19 44 -0.09 3 0 0 13 9 36 4 22 24.8 41 282 -22 13 12 30 13 6 43 13 17 5 13 2 8 -0.09 4 0 0 12 51 51 4 22 17.8 40 283 -21 12 54 45 12 48 58 12 59 20 12 44 23 -0.09 5 0 0 12 33 57 4 22 11.0 39 283 -20 12 36 50 12 31 3 12 41 25 12 26 28 -0.09 6 0 0 12 15 53 4 22 4.3 38 283 -19 12 18 46 12 12 59 12 23 22 12 8 24 -0.09 7 0 0 11 57 40 4 21 57.7 37 283 -18 12 0 34 11 54 46 12 5 9 11 50 11 -0.09 8 0 0 11 39 18 4 21 51.3 36 284 -17 11 42 12 11 36 25 11 46 48 11 31 49 -0.09 9 0 0 11 20 49 4 21 45.0 35 284 -16 11 23 42 11 17 55 11 28 18 11 13 19 -0.09 10 0 0 11 2 11 4 21 38.8 34 284 -15 11 5 5 10 59 17 11 9 41 10 54 41 -0.09 11 0 0 10 43 25 4 21 32.8 33 284 -14 10 46 19 10 40 31 10 50 55 10 35 55 -0.09 12 0 0 10 24 32 4 21 26.9 32 285 -13 10 27 26 10 21 38 10 32 3 10 17 2 -0.09 13 0 0 10 5 32 4 21 21.2 31 285 -12 10 8 27 10 2 38 10 13 3 9 58 2 -0.09 14 0 0 9 46 26 4 21 15.7 30 285 -11 9 49 20 9 43 32 9 53 57 9 38 55 -0.09 15 0 0 9 27 13 4 21 10.3 29 285 -10 9 30 7 9 24 19 9 34 44 9 19 42 -0.09 16 0 0 9 7 54 4 21 5.0 28 285 -9 9 10 49 9 5 0 9 15 25 9 0 23 -0.09 17 0 0 8 48 30 4 21 0.0 27 286 -8 8 51 24 8 45 35 8 56 1 8 40 59 -0.09 18 0 0 8 29 0 4 20 55.1 26 286 -7 8 31 55 8 26 6 8 36 32 8 21 29 -0.09 19 0 0 8 9 26 4 20 50.4 24 286 -6 8 12 21 8 6 32 8 16 58 8 1 55 -0.09 20 0 0 7 49 47 4 20 45.8 23 286 -5 7 52 42 7 46 53 7 57 19 7 42 16 -0.09 21 0 0 7 30 5 4 20 41.4 22 286 -4 7 32 59 7 27 10 7 37 37 7 22 33 -0.09 22 0 0 7 10 18 4 20 37.2 21 286 -3 7 13 13 7 7 24 7 17 50 7 2 47 -0.09 23 0 0 6 50 29 4 20 33.2 20 287 -2 6 53 24 6 47 34 6 58 1 6 42 57 -0.09 24 0 0 6 30 37 4 20 29.4 19 287 -1 6 33 31 6 27 42 6 38 9 6 23 5 -0.09 25 0 0 6 10 42 4 20 25.7 18 287 0 6 13 37 6 7 47 6 18 14 6 3 10 -0.09 26 0 0 5 50 45 4 20 22.3 17 287 1 5 53 40 5 47 51 5 58 17 5 43 13 -0.09 27 0 0 5 30 47 4 20 19.0 16 287 2 5 33 42 5 27 52 5 38 19 5 23 15 -0.09 28 0 0 5 10 48 4 20 15.9 15 287 3 5 13 42 5 7 53 5 18 20 5 3 16 -0.09 29 0 0 4 50 48 4 20 13.1 14 287 4 4 53 42 4 47 53 4 58 20 4 43 16 -0.10 30 0 0 4 30 47 4 20 10.4 13 287 5 4 33 42 4 27 53 4 38 20 4 23 15 -0.10 31 0 0 4 10 47 4 20 7.9 12 287 6 4 13 42 4 7 53 4 18 20 4 3 15 -0.10 32 0 0 3 50 48 4 20 5.6 11 287 7 3 53 43 3 47 53 3 58 20 3 43 16 -0.10 33 0 0 3 30 49 4 20 3.5 10 287 9 3 33 44 3 27 55 3 38 22 3 23 17 -0.10 34 0 0 3 10 53 4 20 1.6 9 288 10 3 13 47 3 7 58 3 18 25 3 3 21 -0.10 35 0 0 2 50 58 4 20 0.0 8 288 11 2 53 52 2 48 3 2 58 29 2 43 26 -0.10 36 0 0 2 31 5 4 19 58.5 7 288 12 2 34 0 2 28 10 2 38 37 2 23 33 -0.11 37 0 0 2 11 15 4 19 57.2 6 288 13 2 14 10 2 8 21 2 18 47 2 3 44 -0.11 38 0 0 1 51 29 4 19 56.2 5 288 14 1 54 23 1 48 34 1 59 0 1 43 57 -0.12 39 0 0 1 31 46 4 19 55.3 4 288 15 1 34 40 1 28 51 1 39 17 1 24 14 -0.13 40 0 0 1 12 7 4 19 54.7 3 288 16 1 15 1 1 9 13 1 19 38 1 4 36 -0.14 41 0 0 0 52 33 4 19 54.2 2 288 17 0 55 27 0 49 39 1 0 4 0 45 2 -0.18 42 0 0 0 33 4 4 19 54.0 1 288 18 0 35 58 0 30 10 0 40 35 0 25 33 -0.35 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 539-020886 * constellation : Orion * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 54 14.1000 DE: +17 47 24.809 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 54 14.1000 DE: +17 47 24.809 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.0 * B mag [mag]: 10.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (15804) Yenisei asteroid class: approx. diameter [km]: 10 approx. diameter ["]: 0.008 distance from Earth [AU]: 1.66380 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#47 date of fit: 2022 Nov 26 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", 0.004", 82.514° remarks: * orbital elements for (15804)Yenisei : Mean anomaly = 26.0330137051 deg Arg. of pericenter = 296.2596467009 deg Long. of node = 116.5165844170 deg Inclination = 6.2737988135 deg Eccentricity = 0.0519851734 Semimajor axis = 2.7412380752 AU Perihelion dist = 2.5987343386 AU Mag: H = 13.72, G = 0.15 Epoch of elements : MJD 60646.18766287 TDT (2024 Dec 02.1877) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#472022Nov26,0.99,2024,12,2,4.503892,0.008719,0.097486,-5.755662,0.527112,-0.001868,0.000539,0.000001,0.000000 -50.1453,17.7959,109.81,-22.02,False UCAC4 539-020886,5.90391665,17.7902248,10.15,9.97,9.87,0.0,0,,5.92851477,17.7958566,7.47,7.12,0,0,0 15804,Yenisei,17.44,10.151,1.6638,0,0,-2.130,2.79,,1.0,0 0,25.9923,2024,12,2,296.2596,116.5166,6.2738,0.05199,2.74124,2.59873,13.72,5.0,0.15 1.794,0.0237,0.0043,83,0.0067,Known errors,1.01,0,-1,-1 20241202_020886,60140.72 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:21 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org