IOTA/IOTA-ES occultation update for (949) Hel / UCAC4 633-023137 event on 2023 Nov 12, 04:33 UT Visible from Africa, SE USA, Mexico Summary ------- On 2023 Nov 12 UT, the 64.5 km diameter asteroid (949) Hel will occult a 12.5 mag star in the constellation Auriga for observers along a path across Africa, SE USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.73 mag to 15.14 mag (the magnitude of the asteroid) for at most 5.660 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: 100 * date and approx. time of event: 2023 Nov 12, 04:24 - 2023 Nov 12, 04:43 * geocentric midpoint of event [JD]: 2460260.69016400 * magnitude of target star: 12.50 * magnitude drop [mag]: 2.73 * estimated maximum duration [s]: 5.660 * Moon: 1 % sunlit, 135° distance * Sun: 147° distance * rough path description: Africa, SE USA, Mexico The occultation path -------------------- * approximate projected width [km]: 65 * 1 sigma uncertainty interval [path widths]: +/- 0.04 * 1 sigma uncertainty interval [seconds]: +/- 2.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.001", 90°) * approx speed of asteroid's shadow [km/s]: 11.4056 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 633-023137 by 949 Hel on 2023 Nov 12 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 -133 0 0 - 0 18 47 4 43 5.5 1 53 -30 0 3 10 - 0 40 46 0 4 56 - 0 42 33 .... -132 0 0 0 25 38 4 43 5.3 2 53 -31 0 47 32 0 3 43 0 49 19 0 1 56 -0.01 -131 0 0 1 9 46 4 43 4.8 3 54 -32 1 31 37 0 47 53 1 33 23 0 46 7 0.05 -130 0 0 1 53 34 4 43 4.0 4 54 -34 2 15 21 1 31 45 2 17 7 1 29 59 0.08 -129 0 0 2 37 1 4 43 3.0 6 54 -35 2 58 45 2 15 16 3 0 31 2 13 30 0.09 -128 0 0 3 20 6 4 43 1.7 7 54 -36 3 41 46 2 58 24 3 43 32 2 56 38 0.10 -127 0 0 4 2 47 4 43 0.2 8 54 -37 4 24 24 3 41 9 4 26 9 3 39 24 0.11 -126 0 0 4 45 3 4 42 58.4 9 54 -38 5 6 36 4 23 30 5 8 21 4 21 44 0.11 -125 0 0 5 26 54 4 42 56.4 10 54 -39 5 48 22 5 5 24 5 50 7 5 3 39 0.12 -124 0 0 6 8 17 4 42 54.1 12 54 -41 6 29 41 5 46 51 6 31 25 5 45 7 0.12 -123 0 0 6 49 12 4 42 51.6 13 54 -42 7 10 32 6 27 50 7 12 16 6 26 6 0.12 -122 0 0 7 29 38 4 42 48.9 14 54 -43 7 50 53 7 8 21 7 52 37 7 6 37 0.12 -121 0 0 8 9 33 4 42 46.0 15 54 -44 8 30 44 7 48 21 8 32 27 7 46 37 0.12 -120 0 0 8 48 58 4 42 42.9 16 54 -45 9 10 4 8 27 50 9 11 47 8 26 7 0.12 -119 0 0 9 27 50 4 42 39.6 17 55 -46 9 48 52 9 6 47 9 50 35 9 5 5 0.12 -118 0 0 10 6 11 4 42 36.0 19 55 -47 10 27 8 9 45 12 10 28 50 9 43 30 0.13 -117 0 0 10 43 57 4 42 32.3 20 55 -48 11 4 50 10 23 4 11 6 32 10 21 22 0.13 -116 0 0 11 21 10 4 42 28.4 21 55 -49 11 41 58 11 0 21 11 43 39 10 58 40 0.13 -115 0 0 11 57 49 4 42 24.3 22 55 -51 12 18 32 11 37 5 12 20 13 11 35 24 0.13 -114 0 0 12 33 53 4 42 20.0 23 55 -52 12 54 31 12 13 13 12 56 11 12 11 33 0.13 -113 0 0 13 9 21 4 42 15.5 24 56 -53 13 29 54 12 48 46 13 31 34 12 47 6 0.13 -112 0 0 13 44 13 4 42 10.9 25 56 -54 14 4 42 13 23 44 14 6 21 13 22 4 0.13 -111 0 0 14 18 29 4 42 6.1 27 56 -55 14 38 53 13 58 5 14 40 32 13 56 25 0.13 -110 0 0 14 52 9 4 42 1.2 28 56 -56 15 12 28 14 31 49 15 14 6 14 30 10 0.13 -109 0 0 15 25 12 4 41 56.1 29 56 -57 15 45 25 15 4 57 15 47 4 15 3 18 0.13 -108 0 0 15 57 37 4 41 50.9 30 57 -58 16 17 46 15 37 27 16 19 24 15 35 49 0.13 -107 0 0 16 29 26 4 41 45.6 31 57 -59 16 49 30 16 9 21 16 51 8 16 7 43 0.13 -106 0 0 17 0 37 4 41 40.1 32 57 -60 17 20 36 16 40 37 17 22 13 16 38 59 0.13 -105 0 0 17 31 10 4 41 34.5 33 57 -61 17 51 5 17 11 15 17 52 42 17 9 38 0.13 -104 0 0 18 1 6 4 41 28.7 34 58 -62 18 20 56 17 41 16 18 22 33 17 39 39 0.13 -103 0 0 18 30 25 4 41 22.9 35 58 -63 18 50 10 18 10 39 18 51 46 18 9 2 0.13 -102 0 0 18 59 5 4 41 17.0 36 58 -64 19 18 46 18 39 24 19 20 21 18 37 48 0.13 -101 0 0 19 27 8 4 41 10.9 37 58 -65 19 46 44 19 7 31 19 48 19 19 5 56 0.13 -100 0 0 19 54 33 4 41 4.7 38 59 -65 20 14 4 19 35 1 20 15 39 19 33 26 0.13 - 99 0 0 20 21 21 4 40 58.5 39 59 -66 20 40 47 20 1 53 20 42 22 20 0 18 0.13 - 98 0 0 20 47 31 4 40 52.1 40 59 -67 21 6 53 20 28 7 21 8 27 20 26 33 0.13 - 97 0 0 21 13 3 4 40 45.7 41 59 -68 21 32 21 20 53 44 21 33 55 20 52 10 0.13 - 96 0 0 21 37 58 4 40 39.2 42 60 -69 21 57 12 21 18 44 21 58 45 21 17 10 0.13 - 95 0 0 22 2 16 4 40 32.6 43 60 -70 22 21 25 21 43 6 22 22 59 21 41 32 0.12 - 94 0 0 22 25 57 4 40 25.9 44 60 -71 22 45 2 22 6 51 22 46 35 22 5 18 0.12 - 93 0 0 22 49 0 4 40 19.2 45 60 -71 23 8 2 22 29 59 23 9 34 22 28 26 0.12 - 92 0 0 23 11 27 4 40 12.4 46 61 -72 23 30 25 22 52 29 23 31 57 22 50 57 0.12 - 91 0 0 23 33 18 4 40 5.5 47 61 -73 23 52 11 23 14 24 23 53 43 23 12 52 0.12 - 90 0 0 23 54 32 4 39 58.6 48 61 -74 24 13 21 23 35 42 24 14 52 23 34 10 0.12 - 89 0 0 24 15 9 4 39 51.6 49 61 -74 24 33 55 23 56 23 24 35 26 23 54 52 0.12 - 88 0 0 24 35 11 4 39 44.5 50 62 -75 24 53 53 24 16 28 24 55 24 24 14 57 0.12 - 87 0 0 24 54 36 4 39 37.4 51 62 -76 25 13 15 24 35 57 25 14 45 24 34 27 0.12 - 86 0 0 25 13 26 4 39 30.3 52 62 -76 25 32 1 24 54 51 25 33 31 24 53 20 0.12 - 85 0 0 25 31 41 4 39 23.1 53 62 -77 25 50 12 25 13 9 25 51 42 25 11 39 0.12 - 84 0 0 25 49 20 4 39 15.8 53 63 -77 26 7 48 25 30 52 26 9 18 25 29 22 0.12 - 83 0 0 26 6 24 4 39 8.5 54 63 -78 26 24 49 25 47 59 26 26 19 25 46 29 0.12 - 82 0 0 26 22 54 4 39 1.2 55 63 -78 26 41 15 26 4 32 26 42 45 26 3 2 0.12 - 81 0 0 26 38 49 4 38 53.8 56 63 -79 26 57 7 26 20 29 26 58 36 26 19 0 0.12 - 80 0 0 26 54 9 4 38 46.4 57 63 -79 27 12 25 26 35 53 27 13 53 26 34 24 0.12 - 79 0 0 27 8 55 4 38 38.9 58 64 -79 27 27 8 26 50 42 27 28 36 26 49 13 0.12 - 78 0 0 27 23 7 4 38 31.5 59 64 -79 27 41 17 27 4 57 27 42 46 27 3 28 0.12 - 77 0 0 27 36 46 4 38 23.9 60 64 -79 27 54 53 27 18 38 27 56 21 27 17 10 0.12 - 76 0 0 27 49 51 4 38 16.4 61 64 -79 28 7 55 27 31 45 28 9 23 27 30 17 0.12 - 75 0 0 28 2 22 4 38 8.8 61 64 -79 28 20 24 27 44 19 28 21 52 27 42 51 0.12 - 74 0 0 28 14 20 4 38 1.2 62 64 -79 28 32 20 27 56 20 28 33 48 27 54 52 0.12 - 73 0 0 28 25 46 4 37 53.6 63 64 -79 28 43 43 28 7 47 28 45 10 28 6 20 0.12 - 72 0 0 28 36 38 4 37 45.9 64 64 -79 28 54 33 28 18 42 28 56 0 28 17 15 0.12 - 71 0 0 28 46 58 4 37 38.2 65 64 -79 29 4 51 28 29 4 29 6 18 28 27 37 0.12 - 70 0 0 28 56 45 4 37 30.5 66 64 -78 29 14 36 28 38 53 29 16 3 28 37 26 0.12 - 69 0 0 29 6 0 4 37 22.8 66 64 -78 29 23 49 28 48 10 29 25 16 28 46 43 0.12 - 68 0 0 29 14 43 4 37 15.0 67 64 -77 29 32 30 28 56 54 29 33 57 28 55 28 0.12 - 67 0 0 29 22 53 4 37 7.2 68 64 -77 29 40 39 29 5 7 29 42 6 29 3 40 0.12 - 66 0 0 29 30 32 4 36 59.4 69 64 -76 29 48 17 29 12 47 29 49 43 29 11 21 0.12 - 65 0 0 29 37 39 4 36 51.6 70 64 -76 29 55 23 29 19 56 29 56 49 29 18 29 0.12 - 64 0 0 29 44 15 4 36 43.8 70 63 -75 30 1 57 29 26 33 30 3 23 29 25 6 0.12 - 63 0 0 29 50 19 4 36 35.9 71 63 -75 30 8 0 29 32 38 30 9 26 29 31 12 0.12 - 62 0 0 29 55 52 4 36 28.0 72 63 -74 30 13 31 29 38 12 30 14 57 29 36 46 0.12 - 61 0 0 30 0 53 4 36 20.1 73 62 -73 30 18 31 29 43 14 30 19 57 29 41 48 0.12 - 60 0 0 30 5 23 4 36 12.2 74 61 -73 30 23 1 29 47 45 30 24 26 29 46 19 0.12 - 59 0 0 30 9 22 4 36 4.3 74 61 -72 30 26 59 29 51 45 30 28 25 29 50 19 0.12 - 58 0 0 30 12 51 4 35 56.3 75 60 -71 30 30 26 29 55 14 30 31 52 29 53 48 0.12 - 57 0 0 30 15 48 4 35 48.3 76 59 -71 30 33 23 29 58 12 30 34 48 29 56 46 0.12 - 56 0 0 30 18 14 4 35 40.4 77 58 -70 30 35 49 30 0 38 30 37 14 29 59 13 0.12 - 55 0 0 30 20 9 4 35 32.4 77 56 -69 30 37 44 30 2 34 30 39 9 30 1 9 0.12 - 54 0 0 30 21 34 4 35 24.3 78 55 -69 30 39 8 30 3 59 30 40 33 30 2 33 0.12 - 53 0 0 30 22 27 4 35 16.3 79 53 -68 30 40 1 30 4 53 30 41 27 30 3 27 0.12 - 52 0 0 30 22 50 4 35 8.2 79 51 -67 30 40 24 30 5 16 30 41 50 30 3 50 0.12 - 51 0 0 30 22 43 4 35 0.2 80 48 -66 30 40 17 30 5 8 30 41 42 30 3 43 0.12 - 50 0 0 30 22 4 4 34 52.1 80 45 -66 30 39 38 30 4 30 30 41 4 30 3 4 0.12 - 49 0 0 30 20 55 4 34 44.0 81 42 -65 30 38 29 30 3 20 30 39 55 30 1 55 0.12 - 48 0 0 30 19 15 4 34 35.9 81 38 -64 30 36 49 30 1 40 30 38 15 30 0 14 0.12 - 47 0 0 30 17 4 4 34 27.7 82 33 -63 30 34 39 29 59 29 30 36 5 29 58 3 0.12 - 46 0 0 30 14 23 4 34 19.6 82 28 -63 30 31 58 29 56 46 30 33 24 29 55 21 0.12 - 45 0 0 30 11 10 4 34 11.4 83 22 -62 30 28 46 29 53 33 30 30 12 29 52 8 0.12 - 44 0 0 30 7 27 4 34 3.3 83 16 -61 30 25 4 29 49 49 30 26 29 29 48 23 0.12 - 43 0 0 30 3 12 4 33 55.1 83 9 -60 30 20 50 29 45 34 30 22 16 29 44 8 0.12 - 42 0 0 29 58 27 4 33 46.9 83 3 -60 30 16 6 29 40 48 30 17 32 29 39 22 0.12 - 41 0 0 29 53 11 4 33 38.6 83 356 -59 30 10 50 29 35 30 30 12 16 29 34 4 0.12 - 40 0 0 29 47 23 4 33 30.4 83 350 -58 30 5 4 29 29 41 30 6 30 29 28 15 0.12 - 39 0 0 29 41 4 4 33 22.2 82 344 -57 29 58 46 29 23 21 30 0 12 29 21 55 0.12 - 38 0 0 29 34 14 4 33 13.9 82 339 -57 29 51 57 29 16 29 29 53 23 29 15 3 0.12 - 37 0 0 29 26 52 4 33 5.6 82 334 -56 29 44 37 29 9 6 29 46 3 29 7 40 0.12 - 36 0 0 29 18 58 4 32 57.3 81 330 -55 29 36 45 29 1 11 29 38 11 28 59 45 0.12 - 35 0 0 29 10 33 4 32 49.0 81 326 -54 29 28 22 28 52 44 29 29 48 28 51 18 0.12 - 34 0 0 29 1 36 4 32 40.7 80 323 -53 29 19 26 28 43 45 29 20 53 28 42 19 0.12 - 33 0 0 28 52 7 4 32 32.4 79 320 -52 29 9 59 28 34 15 29 11 26 28 32 47 0.12 - 32 0 0 28 42 6 4 32 24.1 79 318 -52 29 0 0 28 24 11 29 1 27 28 22 44 0.12 - 31 0 0 28 31 33 4 32 15.8 78 316 -51 28 49 29 28 13 36 28 50 56 28 12 8 0.12 - 30 0 0 28 20 27 4 32 7.4 77 314 -50 28 38 25 28 2 28 28 39 52 28 1 0 0.12 - 29 0 0 28 8 48 4 31 59.0 76 313 -49 28 26 49 27 50 47 28 28 16 27 49 19 0.12 - 28 0 0 27 56 37 4 31 50.7 76 311 -48 28 14 40 27 38 33 28 16 7 27 37 5 0.12 - 27 0 0 27 43 53 4 31 42.3 75 310 -48 28 1 58 27 25 47 28 3 26 27 24 18 0.12 - 26 0 0 27 30 35 4 31 33.9 74 309 -47 27 48 43 27 12 27 27 50 11 27 10 58 0.12 - 25 0 0 27 16 45 4 31 25.6 73 309 -46 27 34 55 26 58 33 27 36 24 26 57 5 0.12 - 24 0 0 27 2 20 4 31 17.2 73 308 -45 27 20 34 26 44 6 27 22 2 26 42 38 0.12 - 23 0 0 26 47 23 4 31 8.8 72 307 -44 27 5 39 26 29 6 27 7 8 26 27 37 0.12 - 22 0 0 26 31 51 4 31 0.4 71 307 -43 26 50 10 26 13 31 26 51 39 26 12 2 0.12 - 21 0 0 26 15 45 4 30 52.0 70 306 -42 26 34 7 25 57 22 26 35 37 25 55 53 0.12 - 20 0 0 25 59 5 4 30 43.6 69 306 -42 26 17 31 25 40 39 26 19 0 25 39 10 0.12 - 19 0 0 25 41 51 4 30 35.2 68 306 -41 26 0 20 25 23 22 26 1 49 25 21 52 0.12 - 18 0 0 25 24 2 4 30 26.8 67 305 -40 25 42 34 25 5 30 25 44 4 25 3 59 0.12 - 17 0 0 25 5 38 4 30 18.5 67 305 -39 25 24 14 24 47 2 25 25 44 24 45 32 0.12 - 16 0 0 24 46 40 4 30 10.1 66 305 -38 25 5 18 24 28 0 25 6 49 24 26 29 0.12 - 15 0 0 24 27 6 4 30 1.7 65 305 -37 24 45 48 24 8 23 24 47 19 24 6 52 0.12 - 14 0 0 24 6 57 4 29 53.4 64 305 -36 24 25 42 23 48 10 24 27 14 23 46 39 0.12 - 13 0 0 23 46 12 4 29 45.0 63 305 -35 24 5 1 23 27 22 24 6 33 23 25 50 0.12 - 12 0 0 23 24 51 4 29 36.7 62 305 -34 23 43 45 23 5 57 23 45 17 23 4 25 0.12 - 11 0 0 23 2 55 4 29 28.4 61 305 -33 23 21 52 22 43 57 23 23 25 22 42 25 0.12 - 10 0 0 22 40 23 4 29 20.2 60 305 -33 22 59 24 22 21 21 23 0 57 22 19 48 0.12 - 9 0 0 22 17 15 4 29 11.9 59 305 -32 22 36 20 21 58 9 22 37 53 21 56 36 0.12 - 8 0 0 21 53 30 4 29 3.7 58 305 -31 22 12 39 21 34 20 22 14 12 21 32 46 0.12 - 7 0 0 21 29 9 4 28 55.5 57 305 -30 21 48 22 21 9 55 21 49 56 21 8 21 0.12 - 6 0 0 21 4 11 4 28 47.3 56 305 -29 21 23 29 20 44 53 21 25 3 20 43 19 0.12 - 5 0 0 20 38 37 4 28 39.2 55 305 -28 20 57 59 20 19 15 20 59 33 20 17 40 0.13 - 4 0 0 20 12 27 4 28 31.1 54 305 -27 20 31 53 19 52 59 20 33 27 19 51 25 0.13 - 3 0 0 19 45 39 4 28 23.1 53 305 -26 20 5 10 19 26 8 20 6 45 19 24 33 0.13 - 2 0 0 19 18 15 4 28 15.1 52 305 -25 19 37 50 18 58 39 19 39 25 18 57 4 0.13 - 1 0 0 18 50 14 4 28 7.2 51 306 -24 19 9 54 18 30 34 19 11 29 18 28 58 0.13 0 0 0 18 21 36 4 27 59.3 50 306 -23 18 41 20 18 1 51 18 42 56 18 0 15 0.13 1 0 0 17 52 22 4 27 51.5 49 306 -22 18 12 11 17 32 33 18 13 47 17 30 56 0.13 2 0 0 17 22 31 4 27 43.8 48 306 -21 17 42 24 17 2 37 17 44 1 17 1 0 0.13 3 0 0 16 52 3 4 27 36.1 47 306 -20 17 12 1 16 32 5 17 13 38 16 30 27 0.13 4 0 0 16 20 59 4 27 28.5 46 306 -19 16 41 2 16 0 56 16 42 39 15 59 18 0.13 5 0 0 15 49 19 4 27 21.0 45 306 -18 16 9 26 15 29 11 16 11 4 15 27 33 0.13 6 0 0 15 17 3 4 27 13.6 44 306 -17 15 37 14 14 56 50 15 38 53 14 55 11 0.13 7 0 0 14 44 10 4 27 6.2 43 307 -16 15 4 27 14 23 53 15 6 5 14 22 14 0.13 8 0 0 14 10 42 4 26 59.0 42 307 -15 14 31 3 13 50 20 14 32 42 13 48 41 0.13 9 0 0 13 36 39 4 26 51.9 41 307 -14 13 57 5 13 16 12 13 58 44 13 14 33 0.13 10 0 0 13 2 1 4 26 44.8 40 307 -13 13 22 31 12 41 29 13 24 11 12 39 49 0.13 11 0 0 12 26 48 4 26 37.9 39 307 -12 12 47 23 12 6 12 12 49 3 12 4 31 0.13 12 0 0 11 51 1 4 26 31.1 37 307 -10 12 11 41 11 30 20 12 13 21 11 28 39 0.13 13 0 0 11 14 40 4 26 24.5 36 307 -9 11 35 25 10 53 55 11 37 5 10 52 14 0.13 14 0 0 10 37 46 4 26 18.0 35 308 -8 10 58 35 10 16 56 11 0 16 10 15 15 0.13 15 0 0 10 0 20 4 26 11.6 34 308 -7 10 21 13 9 39 25 10 22 55 9 37 43 0.13 16 0 0 9 22 21 4 26 5.4 33 308 -6 9 43 19 9 1 22 9 45 1 8 59 40 0.13 17 0 0 8 43 51 4 25 59.3 32 308 -5 9 4 54 8 22 48 9 6 36 8 21 5 0.13 18 0 0 8 4 51 4 25 53.4 31 308 -4 8 25 58 7 43 43 8 27 40 7 42 0 0.13 19 0 0 7 25 21 4 25 47.6 29 308 -3 7 46 32 7 4 9 7 48 15 7 2 25 0.13 20 0 0 6 45 22 4 25 42.0 28 308 -2 7 6 37 6 24 5 7 8 20 6 22 22 0.13 21 0 0 6 4 55 4 25 36.7 27 308 -1 6 26 14 5 43 34 6 27 58 5 41 50 0.13 22 0 0 5 24 0 4 25 31.4 26 308 1 5 45 24 5 2 36 5 47 8 5 0 52 0.13 23 0 0 4 42 40 4 25 26.4 25 308 2 5 4 7 4 21 12 5 5 52 4 19 27 0.13 24 0 0 4 0 55 4 25 21.6 24 308 3 4 22 26 3 39 23 4 24 11 3 37 38 0.13 25 0 0 3 18 46 4 25 17.0 22 308 4 3 40 20 2 57 10 3 42 5 2 55 25 0.13 26 0 0 2 36 14 4 25 12.6 21 308 5 2 57 52 2 14 35 2 59 38 2 12 49 0.13 27 0 0 1 53 21 4 25 8.4 20 308 6 2 15 3 1 31 38 2 16 48 1 29 53 0.13 28 0 0 1 10 8 4 25 4.5 19 308 7 1 31 53 0 48 22 1 33 38 0 46 36 0.13 29 0 0 0 26 36 4 25 0.8 17 308 9 0 48 24 0 4 47 0 50 10 0 3 1 0.13 30 0 0 - 0 17 13 4 24 57.3 16 308 10 0 4 37 - 0 39 5 0 6 24 - 0 40 52 0.13 31 0 0 - 1 1 18 4 24 54.0 15 308 11 - 0 39 25 - 1 23 13 - 0 37 39 - 1 25 0 0.13 32 0 0 - 1 45 38 4 24 51.0 14 308 12 - 1 23 42 - 2 7 35 - 1 21 55 - 2 9 22 0.13 33 0 0 - 2 30 10 4 24 48.3 13 308 13 - 2 8 12 - 2 52 10 - 2 6 25 - 2 53 57 0.13 34 0 0 - 3 14 54 4 24 45.8 11 308 14 - 2 52 54 - 3 36 56 - 2 51 7 - 3 38 43 0.13 35 0 0 - 3 59 47 4 24 43.5 10 308 16 - 3 37 45 - 4 21 51 - 3 35 58 - 4 23 38 0.13 36 0 0 - 4 44 48 4 24 41.5 9 308 17 - 4 22 44 - 5 6 54 - 4 20 57 - 5 8 41 0.13 37 0 0 - 5 29 56 4 24 39.8 8 308 18 - 5 7 50 - 5 52 3 - 5 6 3 - 5 53 50 0.13 38 0 0 - 6 15 7 4 24 38.3 6 308 19 - 5 53 1 - 6 37 16 - 5 51 13 - 6 39 4 0.13 39 0 0 - 7 0 22 4 24 37.1 5 308 20 - 6 38 14 - 7 22 31 - 6 36 27 - 7 24 19 0.12 40 0 0 - 7 45 38 4 24 36.1 4 308 21 - 7 23 29 - 8 7 48 - 7 21 41 - 8 9 36 0.12 41 0 0 - 8 30 53 4 24 35.4 3 308 23 - 8 8 43 - 8 53 3 - 8 6 56 - 8 54 51 0.10 42 0 0 - 9 16 5 4 24 35.0 1 307 24 - 8 53 55 - 9 38 16 - 8 52 7 - 9 40 4 0.07 43 0 0 -10 1 13 4 24 34.8 0 307 25 - 9 39 3 .. .. .. - 9 37 15 .. .. .. -0.39 Uncertainty in time = +/- 2 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: UCAC4 633-023137 * constellation : Auriga * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 09 57.4747 DE: +36 27 56.932 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 09 57.4747 DE: +36 27 56.932 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (949) Hel asteroid class: approx. diameter [km]: 65 approx. diameter ["]: 0.035 distance from Earth [AU]: 2.53470 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#62 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): 0.012", 0.001", 89.74° remarks: * orbital elements for (949)Hel : Mean anomaly = 235.0909471000 deg Arg. of pericenter = 251.1923602821 deg Long. of node = 320.6483461328 deg Inclination = 10.6348273132 deg Eccentricity = 0.1994277626 Semimajor axis = 2.9978998438 AU Perihelion dist = 2.4000353856 AU Mag: H = 9.84, G = 0.15 Epoch of elements : MJD 60260.19000000 TDT (2023 Nov 12.1900) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#622023Oct09,5.66,2023,11,12,4.563936,-0.011852,-0.115749,-6.403848,0.658935,-0.002950,-0.001467,0.000001,0.000000 -41.6203,36.4960,107.56,-17.61,False UCAC4 633-023137,5.16596520,36.4658145,0.00,12.50,0.00,0.0,0,,5.19295039,36.4959655,2.73,0.00,0,0,0 949,Hel,15.14,64.500,2.5347,0,0,-1.843,2.28,,2.8,0 0,235.0549,2023,11,12,251.1924,320.6483,10.6348,0.19943,2.99790,2.40004,9.85,5.0,0.15 1.041,0.0123,0.0005,90,0.0123,Known errors,-1.00,0,-1,-1 20231112_023137,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:03 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org