IOTA/IOTA-ES occultation update for (4708) Polydoros / G181559.5-252515 event on 2022 May 17, 05:43 UT Visible from South America Summary ------- On 2022 May 17 UT, the 55 km diameter asteroid (4708) Polydoros will occult a 13.2 mag star in the constellation Sagittarius for observers along a path across South America. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.29 mag to 17.47 mag (the magnitude of the asteroid) for at most 5.200 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: 97 * date and approx. time of event: 2022 May 17, 05:35 - 2022 May 17, 05:55 * geocentric midpoint of event [JD]: 2459716.73990763 * magnitude of target star: 13.20 * magnitude drop [mag]: 4.29 * estimated maximum duration [s]: 5.200 * Moon: 99 % sunlit, 24° distance * Sun: 142° distance * rough path description: South America The occultation path -------------------- * approximate projected width [km]: 57 * 1 sigma uncertainty interval [path widths]: +/- 0.38 * 1 sigma uncertainty interval [seconds]: +/- 8.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.028, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.028", 0.003", 82°) * approx speed of asteroid's shadow [km/s]: 10.5714 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of G181559.5-252515 by 4708 Polydoros on 2022 May 17 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 -144 0 0 -12 4 3 5 55 6.8 1 116 -37 -11 46 53 -12 21 15 -11 33 51 -12 34 21 .... -143 0 0 -12 32 58 5 55 6.4 2 116 -38 -12 15 47 -12 50 11 -12 2 44 -13 3 16 0.27 -142 0 0 -13 1 55 5 55 5.9 3 115 -40 -12 44 43 -13 19 8 -12 31 40 -13 32 14 0.27 -141 0 0 -13 30 53 5 55 5.1 4 115 -41 -13 13 41 -13 48 7 -13 0 38 -14 1 13 0.27 -140 0 0 -13 59 52 5 55 4.1 5 115 -42 -13 42 40 -14 17 6 -13 29 36 -14 30 13 0.27 -139 0 0 -14 28 51 5 55 2.9 6 115 -43 -14 11 38 -14 46 6 -13 58 34 -14 59 13 0.27 -138 0 0 -14 57 49 5 55 1.4 7 114 -44 -14 40 36 -15 15 4 -14 27 32 -15 28 12 0.27 -137 0 0 -15 26 46 5 54 59.8 9 114 -45 -15 9 33 -15 44 1 -14 56 28 -15 57 9 0.27 -136 0 0 -15 55 40 5 54 57.9 10 114 -46 -15 38 27 -16 12 56 -15 25 22 -16 26 3 0.27 -135 0 0 -16 24 31 5 54 55.9 11 114 -47 -16 7 18 -16 41 47 -15 54 13 -16 54 55 0.27 -134 0 0 -16 53 19 5 54 53.6 12 113 -48 -16 36 5 -17 10 34 -16 23 0 -17 23 42 0.27 -133 0 0 -17 22 1 5 54 51.1 13 113 -49 -17 4 48 -17 39 16 -16 51 43 -17 52 24 0.27 -132 0 0 -17 50 38 5 54 48.4 14 113 -50 -17 33 25 -18 7 54 -17 20 20 -18 21 1 0.27 -131 0 0 -18 19 10 5 54 45.6 15 112 -51 -18 1 56 -18 36 25 -17 48 52 -18 49 32 0.27 -130 0 0 -18 47 34 5 54 42.5 16 112 -52 -18 30 21 -19 4 49 -18 17 17 -19 17 56 0.27 -129 0 0 -19 15 51 5 54 39.3 17 112 -53 -18 58 38 -19 33 5 -18 45 34 -19 46 12 0.27 -128 0 0 -19 44 0 5 54 35.8 18 111 -54 -19 26 48 -20 1 14 -19 13 44 -20 14 21 0.27 -127 0 0 -20 12 0 5 54 32.2 19 111 -55 -19 54 48 -20 29 13 -19 41 45 -20 42 20 0.27 -126 0 0 -20 39 51 5 54 28.4 20 111 -56 -20 22 39 -20 57 3 -20 9 36 -21 10 9 0.27 -125 0 0 -21 7 31 5 54 24.4 21 110 -57 -20 50 20 -21 24 43 -20 37 18 -21 37 49 0.27 -124 0 0 -21 35 1 5 54 20.3 22 110 -58 -21 17 51 -21 52 12 -21 4 49 -22 5 17 0.27 -123 0 0 -22 2 20 5 54 16.0 23 109 -59 -21 45 10 -22 19 30 -21 32 9 -22 32 35 0.27 -122 0 0 -22 29 26 5 54 11.5 24 109 -59 -22 12 18 -22 46 36 -21 59 17 -22 59 40 0.27 -121 0 0 -22 56 21 5 54 6.9 25 108 -60 -22 39 13 -23 13 30 -22 26 13 -23 26 33 0.27 -120 0 0 -23 23 2 5 54 2.2 26 108 -61 -23 5 55 -23 40 10 -22 52 56 -23 53 13 0.27 -119 0 0 -23 49 30 5 53 57.2 27 108 -62 -23 32 24 -24 6 37 -23 19 26 -24 19 39 0.27 -118 0 0 -24 15 44 5 53 52.2 28 107 -63 -23 58 39 -24 32 50 -23 45 42 -24 45 51 0.27 -117 0 0 -24 41 43 5 53 47.0 29 107 -64 -24 24 40 -24 58 49 -24 11 43 -25 11 49 0.27 -116 0 0 -25 7 28 5 53 41.6 30 106 -65 -24 50 26 -25 24 32 -24 37 30 -25 37 31 0.27 -115 0 0 -25 32 57 5 53 36.2 31 106 -65 -25 15 56 -25 50 0 -25 3 1 -26 2 58 0.27 -114 0 0 -25 58 11 5 53 30.6 32 105 -66 -25 41 11 -26 15 12 -25 28 17 -26 28 10 0.27 -113 0 0 -26 23 8 5 53 24.9 33 105 -67 -26 6 9 -26 40 8 -25 53 16 -26 53 5 0.27 -112 0 0 -26 47 49 5 53 19.1 34 104 -68 -26 30 51 -27 4 47 -26 17 59 -27 17 43 0.27 -111 0 0 -27 12 12 5 53 13.1 35 103 -68 -26 55 16 -27 29 10 -26 42 25 -27 42 4 0.27 -110 0 0 -27 36 19 5 53 7.1 36 103 -69 -27 19 24 -27 53 15 -27 6 34 -28 6 8 0.27 -109 0 0 -28 0 7 5 53 0.9 37 102 -70 -27 43 14 -28 17 2 -27 30 25 -28 29 54 0.27 -108 0 0 -28 23 38 5 52 54.7 38 102 -70 -28 6 46 -28 40 31 -27 53 58 -28 53 22 0.27 -107 0 0 -28 46 50 5 52 48.3 39 101 -71 -28 30 0 -29 3 42 -28 17 13 -29 16 32 0.27 -106 0 0 -29 9 44 5 52 41.9 39 100 -72 -28 52 56 -29 26 34 -28 40 10 -29 39 23 0.27 -105 0 0 -29 32 19 5 52 35.4 40 100 -72 -29 15 32 -29 49 8 -29 2 48 -30 1 55 0.27 -104 0 0 -29 54 35 5 52 28.8 41 99 -73 -29 37 50 -30 11 22 -29 25 7 -30 24 8 0.27 -103 0 0 -30 16 32 5 52 22.1 42 98 -73 -29 59 48 -30 33 17 -29 47 6 -30 46 2 0.27 -102 0 0 -30 38 9 5 52 15.3 43 98 -74 -30 21 27 -30 54 53 -30 8 46 -31 7 36 0.28 -101 0 0 -30 59 26 5 52 8.5 44 97 -74 -30 42 46 -31 16 8 -30 30 7 -31 28 51 0.28 -100 0 0 -31 20 24 5 52 1.6 45 96 -74 -31 3 45 -31 37 4 -30 51 7 -31 49 45 0.28 - 99 0 0 -31 41 1 5 51 54.6 46 95 -75 -31 24 24 -31 57 40 -31 11 47 -32 10 20 0.28 - 98 0 0 -32 1 19 5 51 47.6 46 95 -75 -31 44 43 -32 17 55 -31 32 8 -32 30 34 0.28 - 97 0 0 -32 21 15 5 51 40.5 47 94 -75 -32 4 42 -32 37 50 -31 52 7 -32 50 28 0.28 - 96 0 0 -32 40 52 5 51 33.3 48 93 -75 -32 24 20 -32 57 25 -32 11 47 -33 10 1 0.28 - 95 0 0 -33 0 7 5 51 26.1 49 92 -75 -32 43 37 -33 16 39 -32 31 5 -33 29 13 0.28 - 94 0 0 -33 19 2 5 51 18.9 50 91 -75 -33 2 34 -33 35 32 -32 50 3 -33 48 5 0.28 - 93 0 0 -33 37 36 5 51 11.6 51 90 -75 -33 21 10 -33 54 4 -33 8 41 -34 6 36 0.28 - 92 0 0 -33 55 49 5 51 4.3 51 89 -75 -33 39 24 -34 12 16 -33 26 57 -34 24 46 0.28 - 91 0 0 -34 13 42 5 50 56.9 52 88 -75 -33 57 18 -34 30 6 -33 44 52 -34 42 35 0.28 - 90 0 0 -34 31 13 5 50 49.5 53 88 -75 -34 14 51 -34 47 35 -34 2 26 -35 0 3 0.28 - 89 0 0 -34 48 23 5 50 42.0 54 87 -74 -34 32 3 -35 4 44 -34 19 39 -35 17 10 0.28 - 88 0 0 -35 5 11 5 50 34.5 54 86 -74 -34 48 54 -35 21 31 -34 36 31 -35 33 56 0.28 - 87 0 0 -35 21 39 5 50 27.0 55 84 -74 -35 5 23 -35 37 57 -34 53 2 -35 50 20 0.28 - 86 0 0 -35 37 46 5 50 19.5 56 83 -74 -35 21 31 -35 54 1 -35 9 11 -36 6 24 0.28 - 85 0 0 -35 53 31 5 50 11.9 57 82 -73 -35 37 18 -36 9 45 -35 25 0 -36 22 6 0.28 - 84 0 0 -36 8 55 5 50 4.3 57 81 -73 -35 52 44 -36 25 7 -35 40 27 -36 37 27 0.28 - 83 0 0 -36 23 57 5 49 56.7 58 80 -72 -36 7 48 -36 40 8 -35 55 32 -36 52 27 0.28 - 82 0 0 -36 38 39 5 49 49.0 59 79 -72 -36 22 31 -36 54 48 -36 10 17 -37 7 5 0.28 - 81 0 0 -36 52 59 5 49 41.4 60 78 -71 -36 36 53 -37 9 6 -36 24 40 -37 21 22 0.28 - 80 0 0 -37 6 58 5 49 33.7 60 76 -71 -36 50 54 -37 23 4 -36 38 42 -37 35 19 0.28 - 79 0 0 -37 20 36 5 49 26.0 61 75 -70 -37 4 33 -37 36 40 -36 52 22 -37 48 53 0.28 - 78 0 0 -37 33 52 5 49 18.3 62 74 -70 -37 17 51 -37 49 55 -37 5 42 -38 2 7 0.28 - 77 0 0 -37 46 48 5 49 10.6 62 72 -69 -37 30 48 -38 2 49 -37 18 40 -38 15 0 0.28 - 76 0 0 -37 59 22 5 49 2.9 63 71 -69 -37 43 24 -38 15 21 -37 31 17 -38 27 31 0.28 - 75 0 0 -38 11 35 5 48 55.1 64 69 -68 -37 55 39 -38 27 33 -37 43 33 -38 39 42 0.28 - 74 0 0 -38 23 27 5 48 47.4 64 68 -67 -38 7 32 -38 39 24 -37 55 27 -38 51 31 0.28 - 73 0 0 -38 34 58 5 48 39.6 65 66 -67 -38 19 5 -38 50 53 -38 7 1 -39 3 0 0.28 - 72 0 0 -38 46 9 5 48 31.9 66 64 -66 -38 30 16 -39 2 2 -38 18 14 -39 14 7 0.28 - 71 0 0 -38 56 58 5 48 24.1 66 63 -65 -38 41 7 -39 12 50 -38 29 5 -39 24 54 0.28 - 70 0 0 -39 7 26 5 48 16.4 67 61 -65 -38 51 37 -39 23 17 -38 39 36 -39 35 20 0.29 - 69 0 0 -39 17 33 5 48 8.6 67 59 -64 -39 1 45 -39 33 23 -38 49 46 -39 45 25 0.29 - 68 0 0 -39 27 20 5 48 0.8 68 57 -64 -39 11 33 -39 43 8 -38 59 35 -39 55 9 0.29 - 67 0 0 -39 36 46 5 47 53.1 68 55 -63 -39 21 1 -39 52 33 -39 9 3 -40 4 33 0.29 - 66 0 0 -39 45 51 5 47 45.3 69 53 -62 -39 30 7 -40 1 37 -39 18 10 -40 13 36 0.29 - 65 0 0 -39 54 36 5 47 37.5 69 51 -62 -39 38 53 -40 10 20 -39 26 57 -40 22 18 0.29 - 64 0 0 -40 3 0 5 47 29.8 70 49 -61 -39 47 18 -40 18 43 -39 35 23 -40 30 40 0.29 - 63 0 0 -40 11 3 5 47 22.0 70 47 -60 -39 55 22 -40 26 45 -39 43 28 -40 38 42 0.29 - 62 0 0 -40 18 46 5 47 14.3 71 44 -60 -40 3 6 -40 34 27 -39 51 13 -40 46 23 0.29 - 61 0 0 -40 26 8 5 47 6.5 71 42 -59 -40 10 30 -40 41 48 -39 58 37 -40 53 43 0.29 - 60 0 0 -40 33 10 5 46 58.8 71 39 -58 -40 17 33 -40 48 49 -40 5 41 -41 0 44 0.29 - 59 0 0 -40 39 52 5 46 51.0 72 37 -58 -40 24 15 -40 55 30 -40 12 24 -41 7 23 0.29 - 58 0 0 -40 46 13 5 46 43.3 72 34 -57 -40 30 38 -41 1 50 -40 18 47 -41 13 43 0.29 - 57 0 0 -40 52 14 5 46 35.5 72 31 -56 -40 36 40 -41 7 51 -40 24 50 -41 19 43 0.29 - 56 0 0 -40 57 55 5 46 27.8 73 28 -56 -40 42 21 -41 13 31 -40 30 32 -41 25 22 0.29 - 55 0 0 -41 3 16 5 46 20.1 73 25 -55 -40 47 43 -41 18 51 -40 35 54 -41 30 42 0.29 - 54 0 0 -41 8 17 5 46 12.4 73 22 -54 -40 52 44 -41 23 50 -40 40 56 -41 35 41 0.29 - 53 0 0 -41 12 57 5 46 4.7 73 19 -53 -40 57 25 -41 28 30 -40 45 38 -41 40 20 0.29 - 52 0 0 -41 17 17 5 45 57.0 74 16 -53 -41 1 46 -41 32 50 -40 49 59 -41 44 39 0.29 - 51 0 0 -41 21 18 5 45 49.3 74 13 -52 -41 5 47 -41 36 49 -40 54 0 -41 48 38 0.29 - 50 0 0 -41 24 58 5 45 41.6 74 10 -51 -41 9 28 -41 40 29 -40 57 42 -41 52 18 0.29 - 49 0 0 -41 28 18 5 45 33.9 74 7 -51 -41 12 49 -41 43 49 -41 1 3 -41 55 37 0.29 - 48 0 0 -41 31 19 5 45 26.3 74 4 -50 -41 15 49 -41 46 49 -41 4 4 -41 58 37 0.29 - 47 0 0 -41 33 59 5 45 18.6 74 0 -49 -41 18 30 -41 49 29 -41 6 45 -42 1 17 0.29 - 46 0 0 -41 36 20 5 45 11.0 74 357 -49 -41 20 51 -41 51 49 -41 9 6 -42 3 37 0.29 - 45 0 0 -41 38 20 5 45 3.3 74 354 -48 -41 22 52 -41 53 50 -41 11 8 -42 5 37 0.29 - 44 0 0 -41 40 1 5 44 55.7 73 351 -47 -41 24 33 -41 55 30 -41 12 49 -42 7 17 0.29 - 43 0 0 -41 41 22 5 44 48.1 73 348 -47 -41 25 54 -41 56 51 -41 14 10 -42 8 37 0.29 - 42 0 0 -41 42 23 5 44 40.5 73 345 -46 -41 26 56 -41 57 52 -41 15 11 -42 9 38 0.29 - 41 0 0 -41 43 4 5 44 32.9 73 342 -45 -41 27 37 -41 58 33 -41 15 53 -42 10 19 0.29 - 40 0 0 -41 43 26 5 44 25.3 73 339 -44 -41 27 58 -41 58 54 -41 16 14 -42 10 40 0.29 - 39 0 0 -41 43 27 5 44 17.7 72 336 -44 -41 28 0 -41 58 56 -41 16 16 -42 10 42 0.29 - 38 0 0 -41 43 9 5 44 10.2 72 333 -43 -41 27 41 -41 58 37 -41 15 57 -42 10 24 0.29 - 37 0 0 -41 42 31 5 44 2.6 72 331 -42 -41 27 3 -41 57 59 -41 15 19 -42 9 46 0.29 - 36 0 0 -41 41 32 5 43 55.1 71 328 -42 -41 26 5 -41 57 1 -41 14 21 -42 8 48 0.29 - 35 0 0 -41 40 15 5 43 47.6 71 326 -41 -41 24 47 -41 55 43 -41 13 2 -42 7 30 0.29 - 34 0 0 -41 38 37 5 43 40.0 71 323 -40 -41 23 9 -41 54 6 -41 11 24 -42 5 53 0.29 - 33 0 0 -41 36 39 5 43 32.5 70 321 -40 -41 21 11 -41 52 8 -41 9 26 -42 3 56 0.29 - 32 0 0 -41 34 21 5 43 25.1 70 319 -39 -41 18 53 -41 49 51 -41 7 8 -42 1 39 0.29 - 31 0 0 -41 31 44 5 43 17.6 69 317 -38 -41 16 15 -41 47 14 -41 4 29 -41 59 2 0.29 - 30 0 0 -41 28 46 5 43 10.1 69 314 -37 -41 13 17 -41 44 17 -41 1 31 -41 56 5 0.29 - 29 0 0 -41 25 29 5 43 2.7 68 312 -37 -41 9 59 -41 41 0 -40 58 13 -41 52 48 0.29 - 28 0 0 -41 21 51 5 42 55.2 68 310 -36 -41 6 20 -41 37 23 -40 54 34 -41 49 11 0.29 - 27 0 0 -41 17 53 5 42 47.8 67 308 -35 -41 2 22 -41 33 25 -40 50 35 -41 45 15 0.29 - 26 0 0 -41 13 35 5 42 40.4 67 307 -34 -40 58 4 -41 29 8 -40 46 17 -41 40 58 0.29 - 25 0 0 -41 8 57 5 42 33.0 66 305 -34 -40 53 25 -41 24 31 -40 41 37 -41 36 21 0.29 - 24 0 0 -41 3 59 5 42 25.6 66 303 -33 -40 48 26 -41 19 34 -40 36 38 -41 31 24 0.29 - 23 0 0 -40 58 41 5 42 18.3 65 301 -32 -40 43 7 -41 14 16 -40 31 18 -41 26 7 0.29 - 22 0 0 -40 53 2 5 42 10.9 65 300 -32 -40 37 28 -41 8 38 -40 25 38 -41 20 30 0.29 - 21 0 0 -40 47 3 5 42 3.6 64 298 -31 -40 31 28 -41 2 40 -40 19 38 -41 14 33 0.29 - 20 0 0 -40 40 44 5 41 56.3 63 297 -30 -40 25 8 -40 56 22 -40 13 17 -41 8 15 0.29 - 19 0 0 -40 34 4 5 41 49.0 63 295 -29 -40 18 27 -40 49 43 -40 6 35 -41 1 37 0.29 - 18 0 0 -40 27 4 5 41 41.7 62 294 -29 -40 11 26 -40 42 44 -39 59 34 -40 54 38 0.29 - 17 0 0 -40 19 43 5 41 34.4 62 293 -28 -40 4 4 -40 35 24 -39 52 11 -40 47 19 0.29 - 16 0 0 -40 12 2 5 41 27.2 61 291 -27 -39 56 22 -40 27 44 -39 44 28 -40 39 40 0.29 - 15 0 0 -40 4 0 5 41 20.0 60 290 -26 -39 48 19 -40 19 43 -39 36 24 -40 31 40 0.29 - 14 0 0 -39 55 37 5 41 12.8 60 289 -26 -39 39 55 -40 11 21 -39 27 59 -40 23 19 0.29 - 13 0 0 -39 46 54 5 41 5.6 59 287 -25 -39 31 10 -40 2 39 -39 19 14 -40 14 38 0.29 - 12 0 0 -39 37 50 5 40 58.5 58 286 -24 -39 22 5 -39 53 36 -39 10 7 -40 5 36 0.29 - 11 0 0 -39 28 25 5 40 51.4 58 285 -23 -39 12 38 -39 44 12 -39 0 40 -39 56 13 0.29 - 10 0 0 -39 18 39 5 40 44.3 57 284 -23 -39 2 51 -39 34 27 -38 50 52 -39 46 29 0.28 - 9 0 0 -39 8 32 5 40 37.2 56 283 -22 -38 52 43 -39 24 22 -38 40 42 -39 36 25 0.28 - 8 0 0 -38 58 3 5 40 30.2 56 282 -21 -38 42 13 -39 13 55 -38 30 12 -39 25 59 0.28 - 7 0 0 -38 47 14 5 40 23.2 55 280 -20 -38 31 23 -39 3 7 -38 19 20 -39 15 12 0.28 - 6 0 0 -38 36 4 5 40 16.2 54 279 -20 -38 20 11 -38 51 58 -38 8 7 -39 4 5 0.28 - 5 0 0 -38 24 33 5 40 9.2 53 278 -19 -38 8 38 -38 40 28 -37 56 33 -38 52 36 0.28 - 4 0 0 -38 12 40 5 40 2.3 53 277 -18 -37 56 44 -38 28 37 -37 44 38 -38 40 46 0.28 - 3 0 0 -38 0 26 5 39 55.4 52 276 -17 -37 44 28 -38 16 25 -37 32 21 -38 28 34 0.28 - 2 0 0 -37 47 50 5 39 48.6 51 275 -16 -37 31 51 -38 3 51 -37 19 43 -38 16 2 0.28 - 1 0 0 -37 34 54 5 39 41.8 50 275 -16 -37 18 53 -37 50 56 -37 6 43 -38 3 8 0.28 0 0 0 -37 21 35 5 39 35.0 50 274 -15 -37 5 33 -37 37 39 -36 53 22 -37 49 52 0.28 1 0 0 -37 7 56 5 39 28.3 49 273 -14 -36 51 52 -37 24 1 -36 39 40 -37 36 16 0.28 2 0 0 -36 53 55 5 39 21.6 48 272 -13 -36 37 49 -37 10 2 -36 25 36 -37 22 17 0.28 3 0 0 -36 39 32 5 39 15.0 47 271 -12 -36 23 25 -36 55 41 -36 11 10 -37 7 58 0.28 4 0 0 -36 24 48 5 39 8.4 47 270 -12 -36 8 39 -36 40 58 -35 56 23 -36 53 17 0.28 5 0 0 -36 9 42 5 39 1.9 46 269 -11 -35 53 31 -36 25 54 -35 41 14 -36 38 14 0.28 6 0 0 -35 54 15 5 38 55.4 45 268 -10 -35 38 2 -36 10 28 -35 25 44 -36 22 50 0.28 7 0 0 -35 38 26 5 38 49.0 44 268 -9 -35 22 11 -35 54 41 -35 9 52 -36 7 4 0.28 8 0 0 -35 22 15 5 38 42.6 43 267 -8 -35 5 59 -35 38 33 -34 53 38 -35 50 56 0.28 9 0 0 -35 5 43 5 38 36.3 43 266 -7 -34 49 25 -35 22 2 -34 37 3 -35 34 27 0.28 10 0 0 -34 48 50 5 38 30.0 42 265 -7 -34 32 30 -35 5 11 -34 20 6 -35 17 37 0.28 11 0 0 -34 31 34 5 38 23.8 41 265 -6 -34 15 13 -34 47 57 -34 2 48 -35 0 25 0.28 12 0 0 -34 13 58 5 38 17.7 40 264 -5 -33 57 35 -34 30 22 -33 45 8 -34 42 52 0.28 13 0 0 -33 56 0 5 38 11.7 39 263 -4 -33 39 35 -34 12 26 -33 27 7 -34 24 57 0.28 14 0 0 -33 37 40 5 38 5.7 39 262 -3 -33 21 14 -33 54 9 -33 8 45 -34 6 41 0.28 15 0 0 -33 19 0 5 37 59.8 38 262 -2 -33 2 31 -33 35 30 -32 50 1 -33 48 3 0.28 16 0 0 -32 59 58 5 37 53.9 37 261 -1 -32 43 27 -33 16 30 -32 30 56 -33 29 4 0.28 17 0 0 -32 40 35 5 37 48.2 36 260 0 -32 24 2 -32 57 8 -32 11 29 -33 9 44 0.28 18 0 0 -32 20 51 5 37 42.5 35 260 0 -32 4 17 -32 37 26 -31 51 42 -32 50 3 0.28 19 0 0 -32 0 45 5 37 37.0 34 259 1 -31 44 10 -32 17 23 -31 31 34 -32 30 1 0.28 20 0 0 -31 40 20 5 37 31.5 33 259 2 -31 23 42 -31 56 58 -31 11 5 -32 9 39 0.28 21 0 0 -31 19 33 5 37 26.1 32 258 3 -31 2 54 -31 36 14 -30 50 15 -31 48 55 0.28 22 0 0 -30 58 26 5 37 20.8 32 257 4 -30 41 45 -31 15 8 -30 29 5 -31 27 51 0.28 23 0 0 -30 36 58 5 37 15.6 31 257 5 -30 20 16 -30 53 43 -30 7 34 -31 6 27 0.28 24 0 0 -30 15 11 5 37 10.5 30 256 6 -29 58 26 -30 31 57 -29 45 44 -30 44 42 0.28 25 0 0 -29 53 3 5 37 5.6 29 256 7 -29 36 17 -30 9 51 -29 23 33 -30 22 37 0.28 26 0 0 -29 30 36 5 37 0.7 28 255 8 -29 13 48 -29 47 25 -29 1 3 -30 0 13 0.28 27 0 0 -29 7 49 5 36 56.0 27 254 9 -28 50 59 -29 24 40 -28 38 13 -29 37 29 0.28 28 0 0 -28 44 43 5 36 51.3 26 254 10 -28 27 51 -29 1 35 -28 15 4 -29 14 26 0.28 29 0 0 -28 21 17 5 36 46.8 25 253 11 -28 4 25 -28 38 11 -27 51 36 -28 51 3 0.28 30 0 0 -27 57 33 5 36 42.5 24 253 11 -27 40 39 -28 14 29 -27 27 49 -28 27 22 0.28 31 0 0 -27 33 31 5 36 38.2 23 252 12 -27 16 35 -27 50 28 -27 3 44 -28 3 22 0.28 32 0 0 -27 9 11 5 36 34.1 22 252 13 -26 52 13 -27 26 9 -26 39 21 -27 39 4 0.28 33 0 0 -26 44 32 5 36 30.2 21 251 14 -26 27 34 -27 1 32 -26 14 41 -27 14 29 0.28 34 0 0 -26 19 37 5 36 26.4 20 251 15 -26 2 37 -26 36 38 -25 49 43 -26 49 35 0.28 35 0 0 -25 54 24 5 36 22.7 19 250 16 -25 37 23 -26 11 27 -25 24 28 -26 24 25 0.28 36 0 0 -25 28 55 5 36 19.2 18 250 17 -25 11 52 -25 45 59 -24 58 56 -25 58 58 0.28 37 0 0 -25 3 9 5 36 15.9 17 250 18 -24 46 5 -25 20 15 -24 33 8 -25 33 15 0.28 38 0 0 -24 37 8 5 36 12.7 16 249 19 -24 20 3 -24 54 15 -24 7 5 -25 7 16 0.29 39 0 0 -24 10 52 5 36 9.6 15 249 20 -23 53 45 -24 27 59 -23 40 46 -24 41 1 0.29 40 0 0 -23 44 20 5 36 6.8 14 248 21 -23 27 13 -24 1 29 -23 14 13 -24 14 32 0.29 41 0 0 -23 17 34 5 36 4.1 13 248 22 -23 0 26 -23 34 44 -22 47 26 -23 47 48 0.29 42 0 0 -22 50 35 5 36 1.6 12 247 23 -22 33 26 -23 7 46 -22 20 25 -23 20 50 0.29 43 0 0 -22 23 22 5 35 59.3 11 247 24 -22 6 12 -22 40 34 -21 53 10 -22 53 39 0.29 44 0 0 -21 55 57 5 35 57.2 10 247 25 -21 38 46 -22 13 9 -21 25 43 -22 26 15 0.30 45 0 0 -21 28 19 5 35 55.2 9 246 26 -21 11 8 -21 45 33 -20 58 4 -21 58 39 0.30 46 0 0 -21 0 30 5 35 53.4 8 246 27 -20 43 18 -21 17 44 -20 30 14 -21 30 51 0.30 47 0 0 -20 32 30 5 35 51.9 7 246 28 -20 15 17 -20 49 45 -20 2 13 -21 2 53 0.31 48 0 0 -20 4 20 5 35 50.5 6 245 29 -19 47 7 -20 21 36 -19 34 2 -20 34 43 0.31 49 0 0 -19 36 1 5 35 49.4 5 245 30 -19 18 46 -19 53 16 -19 5 41 -20 6 25 0.32 50 0 0 -19 7 32 5 35 48.4 4 245 31 -18 50 17 -19 24 48 -18 37 12 -19 37 57 0.34 51 0 0 -18 38 55 5 35 47.7 3 244 32 -18 21 40 -18 56 12 -18 8 34 -19 9 20 0.36 52 0 0 -18 10 10 5 35 47.1 2 244 33 -17 52 55 -18 27 27 -17 39 49 -18 40 36 0.41 53 0 0 -17 41 19 5 35 46.8 1 244 35 -17 24 4 -17 58 36 -17 10 58 -18 11 46 0.57 Uncertainty in time = +/- 9 secs Prediction of 2022 Mar 27.1 Data for the target star ------------------------ * name: G181559.5-252515 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 15 59.4731 DE: -25 25 15.492 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 15 59.4731 DE: -25 25 15.492 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 13.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (4708) Polydoros asteroid class: approx. diameter [km]: 55 approx. diameter ["]: 0.017 distance from Earth [AU]: 4.54160 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#41 date of fit: 2021 Oct 08 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): 0.028", 0.003", 81.588° remarks: * orbital elements for (4708)Polydoros : Mean anomaly = 248.9605063550 deg Arg. of pericenter = 103.1195557369 deg Long. of node = 281.1637705947 deg Inclination = 6.9885560661 deg Eccentricity = 0.0608348692 Semimajor axis = 5.2467241076 AU Perihelion dist = 4.9275403327 AU Mag: H = 10.03, G = 0.15 Epoch of elements : MJD 59716.23881945 TDT (2022 May 17.2388) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#412021Oct08,5.20,2022,5,17,5.757783,-0.016933,-0.273753,-5.957969,0.324321,-0.003559,0.000057,0.000001,0.000000 -46.9336,-25.4133,92.74,19.33,False G181559.5-252515,18.26652030,-25.4209699,0.00,13.20,0.00,0.0,0,,18.28959319,-25.4132550,4.29,0.00,0,0,0 4708,Polydoros,17.47,55.0,4.5416,0,0,-0.851,0.63,,5.4 0,248.9409,2022,5,17,103.1196,281.1638,6.9886,0.06083,5.24672,4.92754,10.03,5.0,0.15 1.380,0.0283,0.0029,82,0.0063,Known errors,-1.00,-1,-1,-1 20220517_252515,59665.09 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Mar 27, 02:14 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org