IOTA/IOTA-ES occultation update for (65803) Didymos / TYC 1390-00696-1 event on 2022 Dec 02, 05:27 UT Visible from Summary ------- On 2022 Dec 02 UT, the 0.8 km diameter asteroid (65803) Didymos will occult a 11.6 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 4.70 mag to 16.33 mag (the magnitude of the asteroid) for at most 0.380 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: 2022 Dec 02, 05:09 - 2022 Dec 02, 05:44 * geocentric midpoint of event [JD]: 2459915.72729833 * magnitude of target star: 11.64 * magnitude drop [mag]: 4.70 * estimated maximum duration [s]: 0.380 * Moon: 67 % sunlit, 123° distance * Sun: 127° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 3 * 1 sigma uncertainty interval [path widths]: +/- 0.17 * 1 sigma uncertainty interval [seconds]: +/- 0.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.001, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.001", 0.001", 107°) * approx speed of asteroid's shadow [km/s]: 2.0364 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1390-00696-1 by 65803 Didymos on 2022 Dec 2 Centre Star Star Sun Path Limit1 Path Limit2 Error Limit1 Error Limit2 Alt E. Longitude Latitude U.T. Alt Az Alt Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " o ' " o ' " o ' " o ' " Longitude Latitude Longitude Latitude Longitude Latitude Longitude Latitude 63 48 31 - 3 49 39 5 12 14.6 1 291 51 63 41 27 - 3 46 59 63 56 14 - 3 52 34 63 39 13 - 3 46 8 63 59 0 - 3 53 37 .... 61 52 35 - 2 46 13 5 12 32.3 4 291 49 61 49 34 - 2 45 6 61 55 38 - 2 47 20 61 48 34 - 2 44 44 61 56 40 - 2 47 43 -2.11 60 45 15 - 2 1 31 5 12 50.1 5 291 48 60 43 0 - 2 0 43 60 47 31 - 2 2 21 60 42 15 - 2 0 26 60 48 17 - 2 2 37 -2.55 59 53 29 - 1 22 51 5 13 7.8 6 291 47 59 51 36 - 1 22 11 59 55 23 - 1 23 32 59 50 59 - 1 21 57 59 56 1 - 1 23 45 -2.65 59 10 23 - 0 47 32 5 13 25.6 7 291 46 59 8 43 - 0 46 57 59 12 2 - 0 48 7 59 8 10 - 0 46 45 59 12 36 - 0 48 19 -2.69 58 33 1 - 0 14 26 5 13 43.3 7 291 45 58 31 31 - 0 13 55 58 34 32 - 0 14 58 58 31 1 - 0 13 44 58 35 2 - 0 15 9 -2.72 57 59 52 0 17 1 5 14 1.1 8 291 44 57 58 29 0 17 30 58 1 16 0 16 32 57 58 1 0 17 39 58 1 44 0 16 22 -2.73 57 29 59 0 47 12 5 14 18.8 9 291 44 57 28 41 0 47 39 57 31 17 0 46 46 57 28 15 0 47 48 57 31 43 0 46 37 -2.74 57 2 43 1 16 22 5 14 36.6 9 291 43 57 1 30 1 16 47 57 3 57 1 15 57 57 1 5 1 16 56 57 4 21 1 15 49 -2.75 56 37 39 1 44 41 5 14 54.3 10 291 43 56 36 29 1 45 5 56 38 49 1 44 17 56 36 6 1 45 13 56 39 13 1 44 9 -2.75 56 14 28 2 12 16 5 15 12.1 10 291 42 56 13 21 2 12 39 56 15 35 2 11 54 56 12 59 2 12 46 56 15 57 2 11 46 -2.76 55 52 54 2 39 14 5 15 29.9 10 291 42 55 51 49 2 39 35 55 53 58 2 38 52 55 51 28 2 39 42 55 54 20 2 38 45 -2.77 55 32 46 3 5 38 5 15 47.6 11 291 41 55 31 43 3 5 58 55 33 48 3 5 17 55 31 23 3 6 5 55 34 9 3 5 10 -2.77 55 13 54 3 31 32 5 16 5.4 11 291 41 55 12 54 3 31 52 55 14 54 3 31 12 55 12 33 3 31 59 55 15 14 3 31 6 -2.78 54 56 11 3 57 0 5 16 23.1 12 291 40 54 55 13 3 57 19 54 57 10 3 56 41 54 54 53 3 57 25 54 57 30 3 56 34 -2.78 54 39 32 4 22 4 5 16 40.9 12 290 40 54 38 35 4 22 22 54 40 29 4 21 45 54 38 16 4 22 28 54 40 48 4 21 39 -2.79 54 23 50 4 46 45 5 16 58.6 12 290 40 54 22 54 4 47 3 54 24 46 4 46 27 54 22 35 4 47 9 54 25 4 4 46 21 -2.80 54 9 1 5 11 6 5 17 16.4 13 290 39 54 8 7 5 11 24 54 9 56 5 10 49 54 7 48 5 11 30 54 10 14 5 10 43 -2.80 53 55 2 5 35 9 5 17 34.1 13 290 39 53 54 9 5 35 26 53 55 56 5 34 52 53 53 51 5 35 32 53 56 13 5 34 46 -2.81 53 41 49 5 58 54 5 17 51.9 13 290 39 53 40 57 5 59 10 53 42 42 5 58 37 53 40 39 5 59 16 53 42 59 5 58 31 -2.82 53 29 20 6 22 22 5 18 9.6 13 290 38 53 28 29 6 22 38 53 30 12 6 22 6 53 28 11 6 22 44 53 30 29 6 22 0 -2.83 53 17 32 6 45 35 5 18 27.4 14 290 38 53 16 41 6 45 51 53 18 22 6 45 19 53 16 24 6 45 57 53 18 39 6 45 14 -2.84 53 6 22 7 8 34 5 18 45.2 14 290 38 53 5 32 7 8 50 53 7 12 7 8 18 53 5 15 7 8 55 53 7 29 7 8 13 -2.85 52 55 50 7 31 19 5 19 2.9 14 290 37 52 55 0 7 31 35 52 56 39 7 31 4 52 54 44 7 31 40 52 56 55 7 30 58 -2.86 52 45 52 7 53 51 5 19 20.7 14 290 37 52 45 4 7 54 6 52 46 41 7 53 36 52 44 47 7 54 11 52 46 57 7 53 31 -2.87 52 36 29 8 16 11 5 19 38.4 14 290 37 52 35 41 8 16 26 52 37 17 8 15 56 52 35 25 8 16 31 52 37 33 8 15 51 -2.88 52 27 38 8 38 19 5 19 56.2 15 289 36 52 26 50 8 38 34 52 28 25 8 38 4 52 26 34 8 38 39 52 28 41 8 37 59 -2.89 52 19 18 9 0 16 5 20 13.9 15 289 36 52 18 31 9 0 30 52 20 5 9 0 1 52 18 15 9 0 35 52 20 21 8 59 56 -2.90 52 11 28 9 22 2 5 20 31.7 15 289 36 52 10 41 9 22 16 52 12 15 9 21 47 52 10 26 9 22 21 52 12 30 9 21 43 -2.91 52 4 8 9 43 38 5 20 49.4 15 289 36 52 3 21 9 43 52 52 4 54 9 43 23 52 3 6 9 43 57 52 5 9 9 43 19 -2.92 51 57 16 10 5 3 5 21 7.2 15 289 35 51 56 30 10 5 17 51 58 1 10 4 49 51 56 14 10 5 22 51 58 17 10 4 44 -2.93 51 50 51 10 26 19 5 21 24.9 15 289 35 51 50 6 10 26 33 51 51 37 10 26 5 51 49 50 10 26 38 51 51 52 10 26 1 -2.95 51 44 54 10 47 26 5 21 42.7 16 289 35 51 44 8 10 47 40 51 45 39 10 47 12 51 43 53 10 47 45 51 45 54 10 47 8 -2.96 51 39 22 11 8 24 5 22 0.5 16 289 35 51 38 38 11 8 38 51 40 8 11 8 10 51 38 22 11 8 42 51 40 23 11 8 6 -2.97 51 34 17 11 29 13 5 22 18.2 16 289 35 51 33 32 11 29 27 51 35 2 11 29 0 51 33 17 11 29 31 51 35 17 11 28 55 -2.98 51 29 37 11 49 54 5 22 36.0 16 289 34 51 28 53 11 50 7 51 30 22 11 49 40 51 28 38 11 50 12 51 30 37 11 49 36 -3.00 51 25 22 12 10 26 5 22 53.7 16 289 34 51 24 38 12 10 39 51 26 6 12 10 13 51 24 23 12 10 44 51 26 21 12 10 8 -3.01 51 21 32 12 30 50 5 23 11.5 16 288 34 51 20 47 12 31 4 51 22 16 12 30 37 51 20 33 12 31 8 51 22 30 12 30 32 -3.02 51 18 5 12 51 6 5 23 29.2 16 288 34 51 17 21 12 51 20 51 18 49 12 50 53 51 17 6 12 51 24 51 19 4 12 50 49 -3.04 51 15 3 13 11 15 5 23 47.0 16 288 34 51 14 19 13 11 28 51 15 46 13 11 2 51 14 4 13 11 33 51 16 1 13 10 57 -3.05 51 12 24 13 31 16 5 24 4.7 16 288 33 51 11 40 13 31 29 51 13 7 13 31 3 51 11 25 13 31 33 51 13 22 13 30 58 -3.07 51 10 8 13 51 9 5 24 22.5 16 288 33 51 9 25 13 51 23 51 10 52 13 50 56 51 9 10 13 51 27 51 11 6 13 50 52 -3.08 51 8 16 14 10 56 5 24 40.2 17 288 33 51 7 33 14 11 9 51 9 0 14 10 42 51 7 18 14 11 13 51 9 14 14 10 38 -3.10 51 6 47 14 30 34 5 24 58.0 17 288 33 51 6 3 14 30 48 51 7 30 14 30 21 51 5 49 14 30 52 51 7 45 14 30 17 -3.11 51 5 41 14 50 6 5 25 15.7 17 288 33 51 4 57 14 50 19 51 6 24 14 49 53 51 4 43 14 50 24 51 6 39 14 49 49 -3.13 51 4 57 15 9 31 5 25 33.5 17 288 33 51 4 14 15 9 44 51 5 41 15 9 18 51 4 0 15 9 48 51 5 55 15 9 14 -3.14 51 4 37 15 28 49 5 25 51.3 17 288 32 51 3 54 15 29 2 51 5 20 15 28 36 51 3 39 15 29 6 51 5 35 15 28 31 -3.16 51 4 39 15 48 0 5 26 9.0 17 288 32 51 3 56 15 48 13 51 5 23 15 47 47 51 3 42 15 48 17 51 5 37 15 47 42 3.17 51 5 5 16 7 4 5 26 26.8 17 288 32 51 4 22 16 7 17 51 5 48 16 6 51 51 4 7 16 7 21 51 6 3 16 6 46 3.19 51 5 53 16 26 1 5 26 44.5 17 287 32 51 5 10 16 26 14 51 6 36 16 25 48 51 4 55 16 26 18 51 6 51 16 25 43 3.20 51 7 4 16 44 51 5 27 2.3 17 287 32 51 6 21 16 45 4 51 7 48 16 44 38 51 6 6 16 45 8 51 8 2 16 44 34 3.22 51 8 39 17 3 34 5 27 20.0 17 287 32 51 7 55 17 3 47 51 9 22 17 3 21 51 7 41 17 3 52 51 9 37 17 3 17 3.24 51 10 36 17 22 11 5 27 37.8 17 287 32 51 9 53 17 22 24 51 11 20 17 21 58 51 9 38 17 22 29 51 11 35 17 21 54 3.25 51 12 58 17 40 41 5 27 55.5 17 287 31 51 12 14 17 40 54 51 13 41 17 40 28 51 11 59 17 40 58 51 13 56 17 40 23 3.27 51 15 42 17 59 4 5 28 13.3 17 287 31 51 14 59 17 59 17 51 16 26 17 58 51 51 14 44 17 59 21 51 16 41 17 58 46 3.28 51 18 51 18 17 20 5 28 31.0 17 287 31 51 18 7 18 17 33 51 19 35 18 17 7 51 17 52 18 17 38 51 19 49 18 17 2 3.30 51 22 23 18 35 29 5 28 48.8 17 287 31 51 21 39 18 35 42 51 23 7 18 35 16 51 21 25 18 35 47 51 23 22 18 35 12 3.32 51 26 20 18 53 32 5 29 6.6 17 287 31 51 25 36 18 53 45 51 27 4 18 53 18 51 25 21 18 53 49 51 27 19 18 53 14 3.33 51 30 41 19 11 27 5 29 24.3 17 287 31 51 29 57 19 11 40 51 31 26 19 11 13 51 29 42 19 11 45 51 31 41 19 11 9 3.35 51 35 28 19 29 15 5 29 42.1 17 287 31 51 34 43 19 29 28 51 36 12 19 29 1 51 34 28 19 29 33 51 36 27 19 28 57 3.36 51 40 39 19 46 56 5 29 59.8 16 287 31 51 39 55 19 47 9 51 41 24 19 46 42 51 39 40 19 47 14 51 41 39 19 46 38 3.38 51 46 17 20 4 30 5 30 17.6 16 287 31 51 45 32 20 4 43 51 47 2 20 4 16 51 45 17 20 4 48 51 47 17 20 4 11 3.40 51 52 20 20 21 56 5 30 35.3 16 287 31 51 51 35 20 22 9 51 53 6 20 21 42 51 51 20 20 22 14 51 53 21 20 21 37 3.41 51 58 51 20 39 14 5 30 53.1 16 287 31 51 58 5 20 39 28 51 59 36 20 39 0 51 57 50 20 39 33 51 59 52 20 38 56 3.43 52 5 48 20 56 25 5 31 10.8 16 287 30 52 5 3 20 56 39 52 6 34 20 56 11 52 4 47 20 56 44 52 6 49 20 56 7 3.44 52 13 14 21 13 28 5 31 28.6 16 287 30 52 12 28 21 13 42 52 14 0 21 13 14 52 12 12 21 13 47 52 14 15 21 13 9 3.46 52 21 7 21 30 23 5 31 46.3 16 287 30 52 20 21 21 30 37 52 21 54 21 30 9 52 20 5 21 30 42 52 22 10 21 30 4 3.47 52 29 30 21 47 10 5 32 4.1 16 287 30 52 28 44 21 47 24 52 30 17 21 46 55 52 28 28 21 47 29 52 30 33 21 46 51 3.48 52 38 23 22 3 48 5 32 21.9 16 287 30 52 37 36 22 4 2 52 39 10 22 3 33 52 37 20 22 4 7 52 39 26 22 3 29 3.50 52 47 47 22 20 17 5 32 39.6 16 287 30 52 46 59 22 20 32 52 48 34 22 20 2 52 46 43 22 20 37 52 48 50 22 19 58 3.51 52 57 42 22 36 37 5 32 57.4 15 287 30 52 56 54 22 36 52 52 58 30 22 36 23 52 56 37 22 36 57 52 58 46 22 36 18 3.52 53 8 9 22 52 48 5 33 15.1 15 287 30 53 7 21 22 53 3 53 8 58 22 52 33 53 7 4 22 53 8 53 9 14 22 52 28 3.54 53 19 10 23 8 49 5 33 32.9 15 287 30 53 18 21 23 9 4 53 19 59 23 8 34 53 18 5 23 9 10 53 20 16 23 8 29 3.55 53 30 46 23 24 40 5 33 50.6 15 287 30 53 29 56 23 24 56 53 31 35 23 24 25 53 29 39 23 25 1 53 31 52 23 24 20 3.56 53 42 57 23 40 21 5 34 8.4 15 287 30 53 42 7 23 40 36 53 43 47 23 40 5 53 41 50 23 40 41 53 44 4 23 40 0 3.57 53 55 45 23 55 50 5 34 26.1 15 287 30 53 54 54 23 56 6 53 56 36 23 55 34 53 54 37 23 56 11 53 56 53 23 55 29 3.58 54 9 12 24 11 8 5 34 43.9 14 287 30 54 8 21 24 11 24 54 10 4 24 10 52 54 8 3 24 11 30 54 10 21 24 10 46 3.59 54 23 19 24 26 14 5 35 1.6 14 287 30 54 22 27 24 26 30 54 24 11 24 25 57 54 22 9 24 26 36 54 24 29 24 25 52 3.60 54 38 8 24 41 7 5 35 19.4 14 287 30 54 37 15 24 41 24 54 39 1 24 40 50 54 36 57 24 41 29 54 39 19 24 40 45 3.60 54 53 40 24 55 47 5 35 37.1 14 287 30 54 52 47 24 56 4 54 54 34 24 55 30 54 52 29 24 56 10 54 54 52 24 55 24 3.61 55 9 58 25 10 13 5 35 54.9 14 287 30 55 9 4 25 10 30 55 10 53 25 9 55 55 8 45 25 10 36 55 11 11 25 9 49 3.62 55 27 5 25 24 23 5 36 12.7 13 287 30 55 26 9 25 24 41 55 28 0 25 24 6 55 25 50 25 24 47 55 28 19 25 24 0 3.62 55 45 1 25 38 18 5 36 30.4 13 287 30 55 44 5 25 38 36 55 45 58 25 38 0 55 43 46 25 38 43 55 46 17 25 37 54 3.62 56 3 52 25 51 56 5 36 48.2 13 287 30 56 2 54 25 52 14 56 4 50 25 51 37 56 2 35 25 52 21 56 5 9 25 51 31 3.63 56 23 39 26 5 15 5 37 5.9 13 287 30 56 22 40 26 5 34 56 24 38 26 4 56 56 22 20 26 5 41 56 24 58 26 4 49 3.63 56 44 27 26 18 15 5 37 23.7 12 287 30 56 43 27 26 18 34 56 45 28 26 17 55 56 43 6 26 18 41 56 45 48 26 17 48 3.63 57 6 20 26 30 53 5 37 41.4 12 288 31 57 5 18 26 31 13 57 7 22 26 30 32 57 4 57 26 31 20 57 7 43 26 30 26 3.63 57 29 22 26 43 8 5 37 59.2 12 288 31 57 28 19 26 43 29 57 30 26 26 42 47 57 27 57 26 43 36 57 30 48 26 42 40 3.63 57 53 40 26 54 57 5 38 16.9 11 288 31 57 52 35 26 55 19 57 54 46 26 54 35 57 52 13 26 55 26 57 55 8 26 54 28 3.62 58 19 21 27 6 18 5 38 34.7 11 288 31 58 18 13 27 6 41 58 20 29 27 5 56 58 17 51 27 6 49 58 20 52 27 5 48 3.62 58 46 32 27 17 8 5 38 52.4 11 288 31 58 45 22 27 17 32 58 47 43 27 16 44 58 44 59 27 17 40 58 48 6 27 16 36 3.61 59 15 24 27 27 23 5 39 10.2 10 288 31 59 14 11 27 27 47 59 16 37 27 26 58 59 13 46 27 27 56 59 17 1 27 26 50 3.61 59 46 7 27 36 57 5 39 28.0 10 289 31 59 44 51 27 37 23 59 47 24 27 36 31 59 44 26 27 37 32 59 47 49 27 36 23 3.60 60 18 58 27 45 46 5 39 45.7 9 289 32 60 17 39 27 46 14 60 20 19 27 45 19 60 17 12 27 46 23 60 20 45 27 45 9 3.59 60 54 17 27 53 41 5 40 3.5 9 289 32 60 52 52 27 54 11 60 55 41 27 53 12 60 52 24 27 54 21 60 56 10 27 53 2 3.58 61 32 28 28 0 33 5 40 21.2 8 289 32 61 30 58 28 1 4 61 33 58 28 0 1 61 30 28 28 1 15 61 34 28 27 59 51 3.57 62 14 9 28 6 6 5 40 39.0 8 290 32 62 12 32 28 6 40 62 15 46 28 5 32 62 12 0 28 6 52 62 16 19 28 5 20 3.57 63 0 12 28 10 0 5 40 56.7 7 290 33 62 58 26 28 10 38 63 1 58 28 9 23 62 57 51 28 10 51 63 2 34 28 9 10 3.56 63 51 59 28 11 44 5 41 14.5 6 290 33 63 50 0 28 12 27 63 53 58 28 11 1 63 49 20 28 12 41 63 54 38 28 10 46 3.58 64 51 55 28 10 19 5 41 32.2 5 291 34 64 49 37 28 11 9 64 54 14 28 9 28 64 48 51 28 11 26 64 55 0 28 9 11 3.61 66 5 5 28 3 45 5 41 50.0 4 292 34 66 2 11 28 4 50 66 8 0 28 2 40 66 1 13 28 5 11 66 8 59 28 2 18 3.72 67 47 25 27 45 49 5 42 7.7 3 292 35 67 42 50 27 47 33 67 52 8 27 44 1 67 41 20 27 48 7 67 53 45 27 43 24 4.22 Uncertainty in time = +/- 0 secs Prediction of 2022 Dec 1.1 Data for the target star ------------------------ * name: TYC 1390-00696-1 * constellation : Cancer * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 22 26.2780 DE: +20 58 58.840 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 22 26.2781 DE: +20 58 58.839 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.6 * B mag [mag]: 11.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (65803) Didymos asteroid class: asteroid system: multiple bodies approx. diameter [km]: 1 approx. diameter ["]: 0.006 distance from Earth [AU]: 0.17620 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#199 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): 0.001", 0.001", 106.682° remarks: * orbital elements for (65803)Didymos : Mean anomaly = 19.3972245117 deg Arg. of pericenter = 319.5553868505 deg Long. of node = 72.9932179045 deg Inclination = 3.4142884337 deg Eccentricity = 0.3833653898 Semimajor axis = 1.6426691687 AU Perihelion dist = 1.0129266624 AU Mag: H = 18.15, G = 0.15 Epoch of elements : MJD 59915.22721667 TDT (2022 Dec 02.2272) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1992022Nov26,0.38,2022,12,2,5.455160,0.935740,0.201326,-0.241771,1.123697,-0.001334,0.000293,0.000000,0.000000 -26.9270,20.9097,95.50,-21.95,False TYC 1390-00696-1,8.37396607,20.9830112,11.87,11.64,11.52,0.0,0,,8.39621789,20.9097392,4.71,4.39,0,0,0 65803,Didymos,16.33,0.8,0.1762,0,0,-0.866,56.06,,0.1,0 Dimorphos,0.2,1.190,0.497100,0.0500,,,,, 0,19.2909,2022,12,2,319.5554,72.9932,3.4143,0.38337,1.64267,1.01293,18.15,5.0,0.15 1.168,0.0011,0.0010,107,0.0011,Known errors,0.96,-1,-1,-1 20221202_0696-1,59914.08 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Dec 01, 01:56 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org