IOTA/IOTA-ES occultation update for (1637) Swings / TYC 2900-01430-1 event on 2023 Nov 30, 03:26 UT Visible from Africa, USA, Mexico Summary ------- On 2023 Nov 30 UT, the 48.2 km diameter asteroid (1637) Swings will occult a 12.3 mag star in the constellation Auriga for observers along a path across Africa, USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.05 mag to 15.30 mag (the magnitude of the asteroid) for at most 3.470 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: 99 * date and approx. time of event: 2023 Nov 30, 03:18 - 2023 Nov 30, 03:34 * geocentric midpoint of event [JD]: 2460278.64341088 * magnitude of target star: 12.32 * magnitude drop [mag]: 3.05 * estimated maximum duration [s]: 3.470 * Moon: 92 % sunlit, 22° distance * Sun: 158° distance * rough path description: Africa, USA, Mexico Additional comments ------------------- 5" double star The occultation path -------------------- * approximate projected width [km]: 48 * 1 sigma uncertainty interval [path widths]: +/- 0.18 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.001", 79°) * approx speed of asteroid's shadow [km/s]: 13.8968 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 2900-01430-1 by 1637 Swings on 2023 Nov 30 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 -140 0 0 9 34 36 3 34 9.5 1 50 -9 9 51 46 9 17 27 9 58 1 9 11 11 .... -139 0 0 10 24 58 3 34 9.3 2 50 -11 10 42 4 10 7 51 10 48 19 10 1 37 -0.09 -138 0 0 11 14 49 3 34 8.9 3 50 -12 11 31 52 10 57 46 11 38 6 10 51 32 -0.04 -137 0 0 12 4 9 3 34 8.2 4 50 -13 12 21 9 11 47 9 12 27 21 11 40 57 -0.03 -136 0 0 12 52 56 3 34 7.3 6 50 -14 13 9 52 12 35 59 13 16 3 12 29 48 -0.02 -135 0 0 13 41 8 3 34 6.2 7 51 -15 13 58 0 13 24 15 14 4 9 13 18 5 -0.01 -134 0 0 14 28 43 3 34 4.9 8 51 -17 14 45 32 14 11 55 14 51 40 14 5 46 0.00 -133 0 0 15 15 42 3 34 3.4 9 51 -18 15 32 26 14 58 57 15 38 33 14 52 50 0.00 -132 0 0 16 2 2 3 34 1.7 11 51 -19 16 18 42 15 45 21 16 24 47 15 39 16 0.00 -131 0 0 16 47 42 3 33 59.8 12 52 -20 17 4 18 16 31 5 17 10 22 16 25 2 0.00 -130 0 0 17 32 41 3 33 57.7 13 52 -21 17 49 14 17 16 9 17 55 16 17 10 7 0.00 -129 0 0 18 16 59 3 33 55.4 14 52 -22 18 33 27 18 0 32 18 39 28 17 54 31 0.00 -128 0 0 19 0 35 3 33 53.0 15 53 -23 19 16 59 18 44 12 19 22 57 18 38 13 0.01 -127 0 0 19 43 28 3 33 50.4 17 53 -24 19 59 47 19 27 9 20 5 44 19 21 12 0.01 -126 0 0 20 25 37 3 33 47.7 18 53 -26 20 41 51 20 9 22 20 47 47 20 3 27 0.01 -125 0 0 21 7 2 3 33 44.8 19 54 -27 21 23 11 20 50 52 21 29 5 20 44 58 0.01 -124 0 0 21 47 42 3 33 41.7 20 54 -28 22 3 47 21 31 37 22 9 39 21 25 44 0.01 -123 0 0 22 27 37 3 33 38.5 21 54 -29 22 43 38 22 11 36 22 49 28 22 5 46 0.01 -122 0 0 23 6 47 3 33 35.2 22 55 -30 23 22 43 22 50 51 23 28 32 22 45 2 0.01 -121 0 0 23 45 11 3 33 31.7 23 55 -31 24 1 2 23 29 20 24 6 49 23 23 33 0.01 -120 0 0 24 22 50 3 33 28.2 24 56 -32 24 38 36 24 7 3 24 44 22 24 1 18 0.01 -119 0 0 24 59 43 3 33 24.5 26 56 -33 25 15 24 24 44 1 25 21 8 24 38 17 0.01 -118 0 0 25 35 50 3 33 20.7 27 56 -34 25 51 27 25 20 13 25 57 9 25 14 31 0.01 -117 0 0 26 11 11 3 33 16.8 28 57 -35 26 26 43 25 55 38 26 32 23 25 49 58 0.01 -116 0 0 26 45 46 3 33 12.8 29 57 -36 27 1 14 26 30 18 27 6 52 26 24 40 0.01 -115 0 0 27 19 36 3 33 8.7 30 58 -37 27 34 59 27 4 13 27 40 36 26 58 36 0.01 -114 0 0 27 52 40 3 33 4.6 31 58 -38 28 7 58 27 37 22 28 13 33 27 31 46 0.01 -113 0 0 28 24 59 3 33 0.3 32 59 -38 28 40 13 28 9 45 28 45 46 28 4 11 0.01 -112 0 0 28 56 32 3 32 56.0 33 59 -39 29 11 42 28 41 23 29 17 13 28 35 51 0.01 -111 0 0 29 27 21 3 32 51.6 34 60 -40 29 42 26 29 12 16 29 47 56 29 6 46 0.01 -110 0 0 29 57 25 3 32 47.1 35 60 -41 30 12 26 29 42 25 30 17 54 29 36 56 0.01 -109 0 0 30 26 45 3 32 42.6 36 60 -42 30 41 41 30 11 49 30 47 8 30 6 22 0.01 -108 0 0 30 55 21 3 32 38.0 37 61 -43 31 10 13 30 40 29 31 15 38 30 35 4 0.01 -107 0 0 31 23 13 3 32 33.3 38 61 -44 31 38 1 31 8 26 31 43 24 31 3 2 0.01 -106 0 0 31 50 22 3 32 28.6 39 62 -45 32 5 5 31 35 39 32 10 28 31 30 17 0.01 -105 0 0 32 16 49 3 32 23.8 40 63 -45 32 31 27 32 2 10 32 36 48 31 56 49 0.01 -104 0 0 32 42 32 3 32 19.0 41 63 -46 32 57 7 32 27 57 33 2 26 32 22 38 0.01 -103 0 0 33 7 34 3 32 14.2 41 64 -47 33 22 5 32 53 3 33 27 22 32 47 45 0.01 -102 0 0 33 31 54 3 32 9.3 42 64 -48 33 46 21 33 17 27 33 51 37 33 12 11 0.00 -101 0 0 33 55 33 3 32 4.3 43 65 -49 34 9 56 33 41 10 34 15 11 33 35 55 0.00 -100 0 0 34 18 31 3 31 59.4 44 65 -49 34 32 50 34 4 12 34 38 3 33 58 58 0.00 - 99 0 0 34 40 49 3 31 54.4 45 66 -50 34 55 4 34 26 33 35 0 16 34 21 21 0.00 - 98 0 0 35 2 26 3 31 49.3 46 66 -51 35 16 38 34 48 14 35 21 49 34 43 4 0.00 - 97 0 0 35 23 25 3 31 44.2 47 67 -52 35 37 33 35 9 16 35 42 42 35 4 7 0.00 - 96 0 0 35 43 44 3 31 39.1 48 67 -52 35 57 49 35 29 39 36 2 57 35 24 31 0.00 - 95 0 0 36 3 24 3 31 34.0 48 68 -53 36 17 26 35 49 23 36 22 33 35 44 16 0.00 - 94 0 0 36 22 27 3 31 28.9 49 69 -54 36 36 25 36 8 29 36 41 31 36 3 23 0.00 - 93 0 0 36 40 51 3 31 23.7 50 69 -54 36 54 46 36 26 57 36 59 51 36 21 52 0.00 - 92 0 0 36 58 39 3 31 18.5 51 70 -55 37 12 30 36 44 47 37 17 34 36 39 43 0.00 - 91 0 0 37 15 49 3 31 13.3 52 70 -56 37 29 38 37 2 0 37 34 40 36 56 58 0.00 - 90 0 0 37 32 23 3 31 8.0 53 71 -56 37 46 9 37 18 37 37 51 10 37 13 36 0.00 - 89 0 0 37 48 20 3 31 2.8 53 72 -57 38 2 3 37 34 38 38 7 4 37 29 37 0.00 - 88 0 0 38 3 42 3 30 57.5 54 72 -58 38 17 23 37 50 2 38 22 22 37 45 3 0.00 - 87 0 0 38 18 29 3 30 52.2 55 73 -58 38 32 6 38 4 51 38 37 5 37 59 53 0.00 - 86 0 0 38 32 40 3 30 46.9 56 73 -59 38 46 15 38 19 6 38 51 13 38 14 8 0.00 - 85 0 0 38 46 17 3 30 41.6 57 74 -59 38 59 50 38 32 45 39 4 46 38 27 48 0.00 - 84 0 0 38 59 20 3 30 36.2 57 75 -60 39 12 50 38 45 50 39 17 46 38 40 54 0.00 - 83 0 0 39 11 49 3 30 30.9 58 75 -61 39 25 16 38 58 21 39 30 11 38 53 26 0.00 - 82 0 0 39 23 44 3 30 25.5 59 76 -61 39 37 9 39 10 18 39 42 3 39 5 24 0.00 - 81 0 0 39 35 5 3 30 20.1 60 76 -62 39 48 29 39 21 42 39 53 22 39 16 49 0.00 - 80 0 0 39 45 54 3 30 14.8 61 77 -62 39 59 15 39 32 33 40 4 8 39 27 40 0.00 - 79 0 0 39 56 10 3 30 9.3 61 78 -63 40 9 30 39 42 51 40 14 21 39 37 59 0.00 - 78 0 0 40 5 54 3 30 3.9 62 78 -63 40 19 11 39 52 36 40 24 2 39 47 45 0.00 - 77 0 0 40 15 5 3 29 58.5 63 79 -64 40 28 21 40 1 49 40 33 11 39 56 59 0.00 - 76 0 0 40 23 44 3 29 53.1 64 80 -64 40 36 59 40 10 30 40 41 49 40 5 40 0.00 - 75 0 0 40 31 52 3 29 47.6 64 80 -65 40 45 5 40 18 40 40 49 54 40 13 50 0.00 - 74 0 0 40 39 29 3 29 42.1 65 81 -65 40 52 40 40 26 17 40 57 29 40 21 29 0.00 - 73 0 0 40 46 34 3 29 36.6 66 82 -66 40 59 44 40 33 24 41 4 32 40 28 35 0.00 - 72 0 0 40 53 8 3 29 31.1 67 82 -66 41 6 17 40 39 59 41 11 4 40 35 11 0.00 - 71 0 0 40 59 11 3 29 25.6 67 83 -66 41 12 19 40 46 3 41 17 6 40 41 16 0.00 - 70 0 0 41 4 44 3 29 20.1 68 83 -67 41 17 50 40 51 37 41 22 37 40 46 50 0.00 - 69 0 0 41 9 46 3 29 14.6 69 84 -67 41 22 51 40 56 40 41 27 38 40 51 53 0.00 - 68 0 0 41 14 17 3 29 9.0 70 85 -68 41 27 22 41 1 13 41 32 8 40 56 26 0.00 - 67 0 0 41 18 19 3 29 3.5 70 85 -68 41 31 23 41 5 15 41 36 9 41 0 29 0.00 - 66 0 0 41 21 50 3 28 57.9 71 86 -68 41 34 53 41 8 47 41 39 39 41 4 1 0.00 - 65 0 0 41 24 51 3 28 52.3 72 87 -68 41 37 54 41 11 49 41 42 40 41 7 3 0.00 - 64 0 0 41 27 23 3 28 46.7 72 87 -69 41 40 25 41 14 20 41 45 10 41 9 35 0.00 - 63 0 0 41 29 24 3 28 41.1 73 88 -69 41 42 26 41 16 22 41 47 11 41 11 37 0.00 - 62 0 0 41 30 56 3 28 35.4 74 89 -69 41 43 57 41 17 54 41 48 43 41 13 9 0.00 - 61 0 0 41 31 58 3 28 29.8 75 89 -69 41 44 59 41 18 57 41 49 44 41 14 11 0.00 - 60 0 0 41 32 30 3 28 24.1 75 90 -70 41 45 31 41 19 29 41 50 16 41 14 44 0.00 - 59 0 0 41 32 33 3 28 18.4 76 91 -70 41 45 34 41 19 32 41 50 19 41 14 47 0.00 - 58 0 0 41 32 6 3 28 12.7 77 91 -70 41 45 7 41 19 5 41 49 52 41 14 19 0.00 - 57 0 0 41 31 9 3 28 7.0 77 92 -70 41 44 11 41 18 8 41 48 56 41 13 22 0.00 - 56 0 0 41 29 43 3 28 1.2 78 93 -70 41 42 44 41 16 41 41 47 30 41 11 56 0.00 - 55 0 0 41 27 47 3 27 55.5 79 93 -70 41 40 49 41 14 44 41 45 34 41 9 59 0.00 - 54 0 0 41 25 21 3 27 49.7 80 94 -70 41 38 23 41 12 18 41 43 9 41 7 32 0.00 - 53 0 0 41 22 25 3 27 43.9 80 95 -70 41 35 28 41 9 22 41 40 14 41 4 36 0.00 - 52 0 0 41 18 59 3 27 38.1 81 95 -70 41 32 3 41 5 55 41 36 49 41 1 9 0.00 - 51 0 0 41 15 4 3 27 32.2 82 96 -70 41 28 8 41 1 59 41 32 54 40 57 13 0.00 - 50 0 0 41 10 38 3 27 26.4 82 97 -70 41 23 43 40 57 32 41 28 30 40 52 46 0.00 - 49 0 0 41 5 42 3 27 20.5 83 98 -70 41 18 48 40 52 36 41 23 35 40 47 49 0.00 - 48 0 0 41 0 16 3 27 14.6 84 98 -70 41 13 23 40 47 8 41 18 10 40 42 21 0.00 - 47 0 0 40 54 19 3 27 8.6 84 99 -70 41 7 27 40 41 10 41 12 15 40 36 22 0.00 - 46 0 0 40 47 51 3 27 2.7 85 100 -69 41 1 1 40 34 42 41 5 49 40 29 53 0.00 - 45 0 0 40 40 53 3 26 56.7 86 101 -69 40 54 4 40 27 42 40 58 53 40 22 53 0.00 - 44 0 0 40 33 24 3 26 50.7 86 102 -69 40 46 36 40 20 11 40 51 25 40 15 22 0.00 - 43 0 0 40 25 23 3 26 44.6 87 104 -69 40 38 37 40 12 9 40 43 27 40 7 20 0.00 - 42 0 0 40 16 52 3 26 38.6 87 106 -68 40 30 7 40 3 36 40 34 57 39 58 46 -0.01 - 41 0 0 40 7 48 3 26 32.5 87 124 -68 40 21 5 39 54 31 40 25 56 39 49 40 -0.02 - 40 0 0 39 58 13 3 26 26.4 87 272 -68 40 11 32 39 44 54 40 16 23 39 40 2 -0.01 - 39 0 0 39 48 6 3 26 20.2 87 279 -67 40 1 26 39 34 45 40 6 19 39 29 52 0.00 - 38 0 0 39 37 26 3 26 14.0 86 281 -67 39 50 49 39 24 3 39 55 42 39 19 10 0.00 - 37 0 0 39 26 14 3 26 7.8 86 282 -67 39 39 39 39 12 49 39 44 32 39 7 55 0.00 - 36 0 0 39 14 29 3 26 1.6 85 283 -66 39 27 56 39 1 2 39 32 50 38 56 7 0.00 - 35 0 0 39 2 10 3 25 55.3 85 284 -66 39 15 39 38 48 41 39 20 35 38 43 46 0.00 - 34 0 0 38 49 18 3 25 49.1 84 285 -65 39 2 50 38 35 47 39 7 46 38 30 51 0.00 - 33 0 0 38 35 53 3 25 42.7 83 286 -65 38 49 27 38 22 19 38 54 24 38 17 22 0.00 - 32 0 0 38 21 53 3 25 36.4 83 286 -64 38 35 30 38 8 17 38 40 28 38 3 19 0.00 - 31 0 0 38 7 19 3 25 30.0 82 287 -64 38 20 58 37 53 40 38 25 57 37 48 41 0.00 - 30 0 0 37 52 10 3 25 23.6 81 288 -63 38 5 52 37 38 28 38 10 52 37 33 29 0.00 - 29 0 0 37 36 26 3 25 17.1 80 288 -63 37 50 11 37 22 42 37 55 12 37 17 41 0.00 - 28 0 0 37 20 7 3 25 10.7 80 289 -62 37 33 54 37 6 19 37 38 56 37 1 17 0.00 - 27 0 0 37 3 12 3 25 4.2 79 290 -62 37 17 2 36 49 21 37 22 5 36 44 18 0.00 - 26 0 0 36 45 40 3 24 57.6 78 290 -61 36 59 33 36 31 47 37 4 38 36 26 42 0.00 - 25 0 0 36 27 32 3 24 51.1 77 291 -61 36 41 28 36 13 35 36 46 34 36 8 30 0.00 - 24 0 0 36 8 47 3 24 44.5 76 292 -60 36 22 47 35 54 47 36 27 53 35 49 41 0.00 - 23 0 0 35 49 25 3 24 37.9 76 292 -59 36 3 28 35 35 22 36 8 35 35 30 14 0.00 - 22 0 0 35 29 24 3 24 31.2 75 293 -59 35 43 31 35 15 18 35 48 40 35 10 9 0.00 - 21 0 0 35 8 46 3 24 24.5 74 293 -58 35 22 56 34 54 36 35 28 6 34 49 26 0.00 - 20 0 0 34 47 30 3 24 17.8 73 294 -57 35 1 43 34 33 16 35 6 54 34 28 5 0.00 - 19 0 0 34 25 34 3 24 11.1 72 294 -57 34 39 51 34 11 17 34 45 3 34 6 4 0.00 - 18 0 0 34 2 59 3 24 4.3 71 295 -56 34 17 20 33 48 38 34 22 34 33 43 24 0.00 - 17 0 0 33 39 44 3 23 57.6 70 296 -55 33 54 9 33 25 20 33 59 24 33 20 5 0.00 - 16 0 0 33 15 50 3 23 50.8 69 296 -55 33 30 18 33 1 22 33 35 35 32 56 5 0.00 - 15 0 0 32 51 15 3 23 43.9 69 297 -54 33 5 47 32 36 43 33 11 5 32 31 25 0.00 - 14 0 0 32 25 59 3 23 37.1 68 297 -53 32 40 35 32 11 23 32 45 54 32 6 3 0.00 - 13 0 0 32 0 2 3 23 30.2 67 298 -52 32 14 42 31 45 22 32 20 3 31 40 1 0.00 - 12 0 0 31 33 23 3 23 23.3 66 298 -52 31 48 7 31 18 39 31 53 30 31 13 17 0.00 - 11 0 0 31 6 3 3 23 16.4 65 299 -51 31 20 51 30 51 15 31 26 15 30 45 51 0.00 - 10 0 0 30 38 0 3 23 9.5 64 299 -50 30 52 53 30 23 8 30 58 18 30 17 43 0.00 - 9 0 0 30 9 15 3 23 2.6 63 300 -49 30 24 12 29 54 19 30 29 39 29 48 52 0.00 - 8 0 0 29 39 48 3 22 55.7 62 300 -48 29 54 48 29 24 47 30 0 17 29 19 18 0.00 - 7 0 0 29 9 37 3 22 48.7 61 301 -47 29 24 42 28 54 32 29 30 12 28 49 2 0.00 - 6 0 0 28 38 43 3 22 41.8 60 301 -47 28 53 52 28 23 34 28 59 24 28 18 2 0.00 - 5 0 0 28 7 6 3 22 34.9 59 302 -46 28 22 19 27 51 52 28 27 52 27 46 19 0.00 - 4 0 0 27 34 44 3 22 27.9 58 302 -45 27 50 2 27 19 27 27 55 37 27 13 52 0.00 - 3 0 0 27 1 40 3 22 21.0 57 302 -44 27 17 2 26 46 17 27 22 38 26 40 41 0.01 - 2 0 0 26 27 51 3 22 14.1 56 303 -43 26 43 18 26 12 24 26 48 56 26 6 46 0.01 - 1 0 0 25 53 18 3 22 7.2 55 303 -42 26 8 49 25 37 47 26 14 29 25 32 7 0.01 0 0 0 25 18 2 3 22 0.4 54 304 -41 25 33 37 25 2 26 25 39 19 24 56 45 0.01 1 0 0 24 42 1 3 21 53.5 53 304 -40 24 57 41 24 26 21 25 3 24 24 20 38 0.01 2 0 0 24 5 17 3 21 46.7 52 305 -39 24 21 1 23 49 32 24 26 46 23 43 47 0.01 3 0 0 23 27 48 3 21 39.9 51 305 -38 23 43 37 23 11 59 23 49 24 23 6 13 0.01 4 0 0 22 49 37 3 21 33.2 50 305 -37 23 5 30 22 33 43 23 11 18 22 27 55 0.01 5 0 0 22 10 41 3 21 26.5 48 306 -36 22 26 39 21 54 44 22 32 29 21 48 54 0.01 6 0 0 21 31 3 3 21 19.8 47 306 -35 21 47 5 21 15 1 21 52 56 21 9 10 0.01 7 0 0 20 50 42 3 21 13.2 46 306 -34 21 6 48 20 34 36 21 12 41 20 28 43 0.01 8 0 0 20 9 39 3 21 6.7 45 307 -33 20 25 49 19 53 28 20 31 44 19 47 34 0.01 9 0 0 19 27 54 3 21 0.2 44 307 -32 19 44 9 19 11 39 19 50 4 19 5 43 0.01 10 0 0 18 45 27 3 20 53.9 43 307 -31 19 1 47 18 29 8 19 7 44 18 23 11 0.01 11 0 0 18 2 21 3 20 47.6 42 308 -30 18 18 44 17 45 57 18 24 43 17 39 59 0.01 12 0 0 17 18 34 3 20 41.4 40 308 -29 17 35 1 17 2 7 17 41 1 16 56 6 0.01 13 0 0 16 34 8 3 20 35.3 39 308 -28 16 50 39 16 17 37 16 56 41 16 11 35 0.01 14 0 0 15 49 4 3 20 29.3 38 309 -27 16 5 39 15 32 29 16 11 42 15 26 26 0.01 15 0 0 15 3 23 3 20 23.4 37 309 -26 15 20 2 14 46 45 15 26 7 14 40 40 0.01 16 0 0 14 17 6 3 20 17.6 36 309 -24 14 33 49 14 0 24 14 39 54 13 54 18 0.01 17 0 0 13 30 14 3 20 12.0 34 309 -23 13 47 0 13 13 28 13 53 7 13 7 21 0.01 18 0 0 12 42 49 3 20 6.5 33 310 -22 12 59 38 12 25 59 13 5 46 12 19 51 0.01 19 0 0 11 54 51 3 20 1.1 32 310 -21 12 11 43 11 37 58 12 17 53 11 31 49 0.01 20 0 0 11 6 22 3 19 55.9 31 310 -20 11 23 17 10 49 26 11 29 28 10 43 15 0.01 21 0 0 10 17 23 3 19 50.9 29 310 -19 10 34 22 10 0 25 10 40 34 9 54 13 0.01 22 0 0 9 27 57 3 19 46.0 28 310 -17 9 44 59 9 10 56 9 51 11 9 4 43 0.01 23 0 0 8 38 5 3 19 41.3 27 310 -16 8 55 9 8 21 1 9 1 23 8 14 47 0.01 24 0 0 7 47 49 3 19 36.7 26 311 -15 8 4 55 7 30 42 8 11 9 7 24 28 0.01 25 0 0 6 57 10 3 19 32.4 24 311 -14 7 14 18 6 40 1 7 20 34 6 33 45 0.01 26 0 0 6 6 10 3 19 28.2 23 311 -13 6 23 21 5 48 59 6 29 37 5 42 43 0.01 27 0 0 5 14 52 3 19 24.3 22 311 -11 5 32 4 4 57 39 5 38 21 4 51 22 0.01 28 0 0 4 23 17 3 19 20.5 20 311 -10 4 40 31 4 6 3 4 46 49 3 59 46 0.01 29 0 0 3 31 28 3 19 17.0 19 311 -9 3 48 44 3 14 13 3 55 2 3 7 55 0.01 30 0 0 2 39 27 3 19 13.7 18 311 -8 2 56 44 2 22 10 3 3 2 2 15 52 0.01 31 0 0 1 47 16 3 19 10.6 16 311 -7 2 4 34 1 29 58 2 10 53 1 23 39 0.01 32 0 0 0 54 57 3 19 7.7 15 311 -5 1 12 16 0 37 39 1 18 35 0 31 20 0.01 33 0 0 0 2 33 3 19 5.1 14 311 -4 0 19 53 - 0 14 46 0 26 12 - 0 21 5 0.01 34 0 0 - 0 49 53 3 19 2.6 13 311 -3 - 0 32 34 - 1 7 13 - 0 26 15 - 1 13 32 0.01 35 0 0 - 1 42 21 3 19 0.5 11 311 -2 - 1 25 2 - 1 59 41 - 1 18 42 - 2 6 0 0.00 36 0 0 - 2 34 47 3 18 58.5 10 311 0 - 2 17 28 - 2 52 6 - 2 11 8 - 2 58 26 0.00 37 0 0 - 3 27 9 3 18 56.8 9 311 1 - 3 9 50 - 3 44 28 - 3 3 31 - 3 50 47 0.00 38 0 0 - 4 19 24 3 18 55.4 7 311 2 - 4 2 5 - 4 36 42 - 3 55 47 - 4 43 1 0.00 39 0 0 - 5 11 30 3 18 54.2 6 311 3 - 4 54 12 - 5 28 47 - 4 47 54 - 5 35 6 -0.01 40 0 0 - 6 3 25 3 18 53.2 5 311 5 - 5 46 9 - 6 20 41 - 5 39 50 - 6 26 59 -0.02 41 0 0 - 6 55 6 3 18 52.5 3 311 6 - 6 37 51 - 7 12 21 - 6 31 34 - 7 18 39 -0.03 42 0 0 - 7 46 32 3 18 52.0 2 311 7 - 7 29 18 - 8 3 45 - 7 23 1 - 8 10 2 -0.07 43 0 0 - 8 37 39 3 18 51.8 1 310 8 - 8 20 28 - 8 54 51 - 8 14 11 - 9 1 7 -0.22 Uncertainty in time = +/- 2 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: TYC 2900-01430-1 * constellation : Auriga * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 16 55.8337 DE: +39 46 32.023 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 16 55.8338 DE: +39 46 32.023 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.3 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1637) Swings asteroid class: approx. diameter [km]: 48 approx. diameter ["]: 0.029 distance from Earth [AU]: 2.28670 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#63 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): 0.013", 0.001", 78.568° remarks: * orbital elements for (1637)Swings : Mean anomaly = 177.9654900733 deg Arg. of pericenter = 238.5139621645 deg Long. of node = 21.1635909724 deg Inclination = 14.0830366721 deg Eccentricity = 0.0502984362 Semimajor axis = 3.0696350564 AU Perihelion dist = 2.9152372135 AU Mag: H = 10.47, G = 0.15 Epoch of elements : MJD 60278.14326389 TDT (2023 Nov 30.1433) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#632023Oct09,3.47,2023,11,30,3.441861,0.000234,0.001620,-7.675105,1.617827,-0.001344,-0.001772,0.000001,0.000000 -40.7269,39.8020,125.48,-21.58,False TYC 2900-01430-1,5.28217603,39.7755618,0.00,12.32,0.00,0.0,0,,5.31016245,39.8020052,3.05,0.00,0,0,1 1637,Swings,15.30,48.200,2.2867,0,0,-2.561,6.22,,2.6,0 0,177.9392,2023,11,30,238.5140,21.1636,14.0830,0.05030,3.06964,2.91524,10.47,5.0,0.15 1.182,0.0133,0.0005,79,0.0133,Known errors,-1.00,0,-1,-1 20231130_1430-1,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:10 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org