IOTA/IOTA-ES occultation update for (227) Philosophia / TYC 1775-00633-1 event on 2023 Dec 18, 18:47 UT Visible from China, SW Asia, Africa Summary ------- On 2023 Dec 18 UT, the 96.6 km diameter asteroid (227) Philosophia will occult a 6.7 mag star in the constellation Aries for observers along a path across China, SW Asia, Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 8.38 mag to 15.10 mag (the magnitude of the asteroid) for at most 9.620 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 Dec 18, 18:37 - 2023 Dec 18, 18:58 * geocentric midpoint of event [JD]: 2460297.28336067 * magnitude of target star: 6.72 * magnitude drop [mag]: 8.38 * estimated maximum duration [s]: 9.620 * Moon: 38 % sunlit, 64° distance * Sun: 138° distance * rough path description: China, SW Asia, Africa Additional comments ------------------- RUWE The occultation path -------------------- * approximate projected width [km]: 98 * 1 sigma uncertainty interval [path widths]: +/- 0.05 * 1 sigma uncertainty interval [seconds]: +/- 1.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.007, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.008", 0.001", 69°) * approx speed of asteroid's shadow [km/s]: 10.0464 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1775-00633-1 by 227 Philosophia on 2023 Dec 18 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 - 35 0 0 -40 0 35 18 58 29.9 1 52 29 -39 27 10 -40 34 3 -39 23 33 -40 37 42 .... - 34 0 0 -39 24 32 18 58 29.7 2 52 28 -38 50 54 -39 58 13 -38 47 15 -40 1 53 0.00 - 33 0 0 -38 47 33 18 58 29.4 3 51 28 -38 13 43 -39 21 28 -38 10 2 -39 25 9 0.07 - 32 0 0 -38 9 38 18 58 28.8 4 50 27 -37 35 34 -38 43 46 -37 31 52 -38 47 29 0.10 - 31 0 0 -37 30 47 18 58 28.0 5 50 26 -36 56 30 -38 5 8 -36 52 46 -38 8 52 0.11 - 30 0 0 -36 50 58 18 58 27.0 6 49 25 -36 16 28 -37 25 32 -36 12 44 -37 29 18 0.12 - 29 0 0 -36 10 13 18 58 25.8 7 49 24 -35 35 30 -36 45 0 -35 31 44 -36 48 47 0.13 - 28 0 0 -35 28 30 18 58 24.3 8 48 23 -34 53 35 -36 3 30 -34 49 48 -36 7 18 0.14 - 27 0 0 -34 45 51 18 58 22.6 9 47 22 -34 10 43 -35 21 3 -34 6 55 -35 24 53 0.14 - 26 0 0 -34 2 15 18 58 20.7 10 47 21 -33 26 55 -34 37 39 -33 23 5 -34 41 30 0.14 - 25 0 0 -33 17 42 18 58 18.4 11 46 20 -32 42 11 -33 53 18 -32 38 19 -33 57 11 0.15 - 24 0 0 -32 32 13 18 58 16.0 12 46 19 -31 56 30 -33 8 1 -31 52 37 -33 11 55 0.15 - 23 0 0 -31 45 49 18 58 13.2 13 45 18 -31 9 54 -32 21 48 -31 6 0 -32 25 43 0.15 - 22 0 0 -30 58 29 18 58 10.1 14 45 17 -30 22 24 -31 34 40 -30 18 29 -31 38 36 0.15 - 21 0 0 -30 10 16 18 58 6.8 16 44 16 -29 34 0 -30 46 37 -29 30 3 -30 50 34 0.15 - 20 0 0 -29 21 9 18 58 3.1 17 44 15 -28 44 43 -29 57 40 -28 40 45 -30 1 39 0.16 - 19 0 0 -28 31 10 18 57 59.1 18 43 14 -27 54 34 -29 7 51 -27 50 35 -29 11 50 0.16 - 18 0 0 -27 40 19 18 57 54.9 19 43 13 -27 3 35 -28 17 10 -26 59 35 -28 21 11 0.16 - 17 0 0 -26 48 40 18 57 50.3 20 42 12 -26 11 46 -27 25 39 -26 7 46 -27 29 41 0.16 - 16 0 0 -25 56 12 18 57 45.3 22 42 11 -25 19 10 -26 33 20 -25 15 9 -26 37 22 0.16 - 15 0 0 -25 2 58 18 57 40.1 23 41 9 -24 25 48 -25 40 13 -24 21 46 -25 44 16 0.16 - 14 0 0 -24 8 59 18 57 34.4 24 41 8 -23 31 43 -24 46 21 -23 27 40 -24 50 26 0.16 - 13 0 0 -23 14 17 18 57 28.5 25 41 7 -22 36 55 -23 51 46 -22 32 51 -23 55 51 0.16 - 12 0 0 -22 18 55 18 57 22.2 27 40 6 -21 41 27 -22 56 30 -21 37 23 -23 0 36 0.16 - 11 0 0 -21 22 55 18 57 15.6 28 40 5 -20 45 21 -22 0 35 -20 41 17 -22 4 41 0.16 - 10 0 0 -20 26 19 18 57 8.6 29 39 3 -19 48 40 -21 4 3 -19 44 35 -21 8 10 0.16 - 9 0 0 -19 29 9 18 57 1.3 31 39 2 -18 51 27 -20 6 57 -18 47 21 -20 11 4 0.16 - 8 0 0 -18 31 28 18 56 53.6 32 39 1 -17 53 43 -19 9 20 -17 49 37 -19 13 27 0.16 - 7 0 0 -17 33 19 18 56 45.6 33 38 0 -16 55 31 -18 11 14 -16 51 25 -18 15 21 0.16 - 6 0 0 -16 34 45 18 56 37.3 35 38 -1 -15 56 55 -17 12 41 -15 52 49 -17 16 49 0.16 - 5 0 0 -15 35 48 18 56 28.6 36 37 -3 -14 57 57 -16 13 46 -14 53 51 -16 17 53 0.16 - 4 0 0 -14 36 32 18 56 19.6 37 37 -4 -13 58 40 -15 14 30 -13 54 34 -15 18 38 0.16 - 3 0 0 -13 36 59 18 56 10.2 39 37 -5 -12 59 7 -14 14 56 -12 55 1 -14 19 4 0.16 - 2 0 0 -12 37 12 18 56 0.6 40 36 -6 -11 59 22 -13 15 9 -11 55 15 -13 19 17 0.16 - 1 0 0 -11 37 15 18 55 50.7 41 36 -8 -10 59 26 -12 15 10 -10 55 20 -12 19 18 0.16 - 0 0 0 -10 37 11 18 55 40.4 43 36 -9 - 9 59 24 -11 15 4 - 9 55 18 -11 19 11 0.16 1 0 0 - 9 37 2 18 55 29.9 44 35 -10 - 8 59 18 -10 14 52 - 8 55 13 -10 18 59 0.16 2 0 0 - 8 36 52 18 55 19.1 45 35 -12 - 7 59 12 - 9 14 39 - 7 55 7 - 9 18 46 0.16 3 0 0 - 7 36 44 18 55 8.1 47 35 -13 - 6 59 8 - 8 14 27 - 6 55 3 - 8 18 33 0.16 4 0 0 - 6 36 42 18 54 56.7 48 34 -14 - 5 59 10 - 7 14 19 - 5 55 5 - 7 18 25 0.16 5 0 0 - 5 36 46 18 54 45.2 49 34 -15 - 4 59 20 - 6 14 19 - 4 55 16 - 6 18 24 0.16 6 0 0 - 4 37 2 18 54 33.4 51 34 -17 - 3 59 41 - 5 14 29 - 3 55 38 - 5 18 34 0.16 7 0 0 - 3 37 32 18 54 21.5 52 33 -18 - 3 0 17 - 4 14 52 - 2 56 15 - 4 18 56 0.16 8 0 0 - 2 38 18 18 54 9.3 53 33 -19 - 2 1 10 - 3 15 31 - 1 57 8 - 3 19 35 0.16 9 0 0 - 1 39 23 18 53 57.0 55 32 -21 - 1 2 23 - 2 16 30 - 0 58 22 - 2 20 32 0.16 10 0 0 - 0 40 51 18 53 44.5 56 32 -22 - 0 3 58 - 1 17 49 0 0 2 - 1 21 51 0.16 11 0 0 0 17 17 18 53 31.8 57 31 -23 0 54 2 - 0 19 33 0 58 2 - 0 23 33 0.16 12 0 0 1 14 59 18 53 19.0 59 31 -24 1 51 35 0 38 17 1 55 33 0 34 18 0.16 13 0 0 2 12 11 18 53 6.1 60 30 -26 2 48 38 1 35 38 2 52 36 1 31 40 0.16 14 0 0 3 8 52 18 52 53.1 61 30 -27 3 45 10 2 32 28 3 49 6 2 28 31 0.16 15 0 0 4 4 59 18 52 40.1 63 29 -28 4 41 7 3 28 45 4 45 3 3 24 49 0.16 16 0 0 5 0 31 18 52 26.9 64 29 -29 5 36 29 4 24 27 5 40 24 4 20 32 0.16 17 0 0 5 55 25 18 52 13.7 65 28 -31 6 31 14 5 19 32 6 35 7 5 15 38 0.16 18 0 0 6 49 41 18 52 0.4 66 27 -32 7 25 19 6 13 58 7 29 11 6 10 5 0.16 19 0 0 7 43 15 18 51 47.1 68 26 -33 8 18 43 7 7 43 8 22 34 7 3 51 0.16 20 0 0 8 36 8 18 51 33.8 69 25 -34 9 11 24 8 0 47 9 15 14 7 56 56 0.15 21 0 0 9 28 17 18 51 20.5 70 24 -35 10 3 22 8 53 7 10 7 11 8 49 17 0.15 22 0 0 10 19 41 18 51 7.2 71 23 -37 10 54 36 9 44 42 10 58 23 9 40 54 0.15 23 0 0 11 10 19 18 50 53.9 72 21 -38 11 45 3 10 35 32 11 48 49 10 31 45 0.15 24 0 0 12 0 11 18 50 40.6 73 19 -39 12 34 42 11 25 35 12 38 27 11 21 49 0.15 25 0 0 12 49 14 18 50 27.4 74 17 -40 13 23 34 12 14 50 13 27 18 12 11 5 0.15 26 0 0 13 37 29 18 50 14.2 75 15 -41 14 11 37 13 3 16 14 15 20 12 59 33 0.15 27 0 0 14 24 54 18 50 1.1 76 13 -42 14 58 51 13 50 53 15 2 32 13 47 11 0.15 28 0 0 15 11 29 18 49 48.0 77 10 -43 15 45 14 14 37 40 15 48 54 14 33 59 0.15 29 0 0 15 57 13 18 49 35.1 78 6 -45 16 30 47 15 23 36 16 34 26 15 19 57 0.15 30 0 0 16 42 7 18 49 22.2 79 2 -46 17 15 29 16 8 42 17 19 6 16 5 3 0.15 31 0 0 17 26 9 18 49 9.4 80 358 -47 17 59 19 16 52 55 18 2 55 16 49 18 0.15 32 0 0 18 9 19 18 48 56.7 80 353 -48 18 42 18 17 36 18 18 45 53 17 32 42 0.15 33 0 0 18 51 38 18 48 44.1 81 347 -49 19 24 25 18 18 48 19 27 58 18 15 13 0.15 34 0 0 19 33 4 18 48 31.6 81 340 -50 20 5 40 19 0 26 20 9 12 18 56 53 0.15 35 0 0 20 13 39 18 48 19.2 81 334 -51 20 46 2 19 41 12 20 49 34 19 37 40 0.15 36 0 0 20 53 21 18 48 7.0 82 326 -52 21 25 33 20 21 6 21 29 3 20 17 35 0.15 37 0 0 21 32 11 18 47 54.8 81 319 -53 22 4 12 21 0 8 22 7 41 20 56 38 0.15 38 0 0 22 10 10 18 47 42.8 81 312 -54 22 41 59 21 38 17 22 45 27 21 34 49 0.15 39 0 0 22 47 17 18 47 31.0 81 306 -55 23 18 55 22 15 35 23 22 21 22 12 8 0.15 40 0 0 23 23 32 18 47 19.2 81 300 -56 23 54 59 22 52 2 23 58 24 22 48 36 0.15 41 0 0 23 58 56 18 47 7.6 80 295 -57 24 30 12 23 27 36 24 33 36 23 24 12 0.15 42 0 0 24 33 28 18 46 56.1 80 290 -58 25 4 34 24 2 20 25 7 57 23 58 57 0.15 43 0 0 25 7 10 18 46 44.8 79 287 -59 25 38 5 24 36 13 25 41 27 24 32 51 0.15 44 0 0 25 40 2 18 46 33.6 78 283 -59 26 10 47 25 9 15 26 14 7 25 5 54 0.15 45 0 0 26 12 4 18 46 22.6 77 280 -60 26 42 38 25 41 27 26 45 57 25 38 7 0.15 46 0 0 26 43 16 18 46 11.7 77 278 -61 27 13 40 26 12 50 27 16 58 26 9 31 0.14 47 0 0 27 13 39 18 46 0.9 76 276 -62 27 43 53 26 43 23 27 47 10 26 40 5 0.14 48 0 0 27 43 13 18 45 50.2 75 274 -63 28 13 17 27 13 7 28 16 33 27 9 50 0.14 49 0 0 28 11 59 18 45 39.8 74 273 -64 28 41 54 27 42 2 28 45 9 27 38 47 0.14 50 0 0 28 39 57 18 45 29.4 74 271 -64 29 9 42 28 10 10 29 12 56 28 6 56 0.14 51 0 0 29 7 8 18 45 19.2 73 270 -65 29 36 44 28 37 30 29 39 57 28 34 17 0.14 52 0 0 29 33 32 18 45 9.1 72 269 -66 30 2 59 29 4 3 30 6 11 29 0 51 0.14 53 0 0 29 59 10 18 44 59.2 71 269 -67 30 28 27 29 29 50 30 31 38 29 26 38 0.14 54 0 0 30 24 2 18 44 49.4 70 268 -67 30 53 10 29 54 50 30 56 20 29 51 40 0.14 55 0 0 30 48 8 18 44 39.8 69 267 -68 31 17 8 30 19 5 31 20 17 30 15 56 0.14 56 0 0 31 11 29 18 44 30.2 68 267 -69 31 40 21 30 42 35 31 43 30 30 39 26 0.14 57 0 0 31 34 6 18 44 20.9 68 267 -70 32 2 50 31 5 20 32 5 58 31 2 12 0.14 58 0 0 31 55 59 18 44 11.6 67 266 -70 32 24 36 31 27 21 32 27 42 31 24 14 0.14 59 0 0 32 17 9 18 44 2.5 66 266 -71 32 45 38 31 48 38 32 48 43 31 45 32 0.14 60 0 0 32 37 36 18 43 53.5 65 266 -71 33 5 57 32 9 13 33 9 2 32 6 7 0.14 61 0 0 32 57 20 18 43 44.7 64 266 -72 33 25 34 32 29 4 33 28 38 32 26 0 0.14 62 0 0 33 16 22 18 43 35.9 63 266 -73 33 44 29 32 48 14 33 47 33 32 45 10 0.14 63 0 0 33 34 43 18 43 27.3 63 266 -73 34 2 43 33 6 41 34 5 46 33 3 38 0.14 64 0 0 33 52 23 18 43 18.9 62 266 -74 34 20 16 33 24 27 34 23 18 33 21 25 0.14 65 0 0 34 9 22 18 43 10.5 61 266 -74 34 37 9 33 41 33 34 40 10 33 38 31 0.14 66 0 0 34 25 41 18 43 2.3 60 266 -74 34 53 22 33 57 58 34 56 22 33 54 57 0.14 67 0 0 34 41 20 18 42 54.2 59 267 -75 35 8 55 34 13 43 35 11 55 34 10 42 0.14 68 0 0 34 56 19 18 42 46.2 59 267 -75 35 23 49 34 28 48 35 26 48 34 25 48 0.14 69 0 0 35 10 40 18 42 38.3 58 267 -76 35 38 4 34 43 14 35 41 2 34 40 15 0.14 70 0 0 35 24 22 18 42 30.5 57 267 -76 35 51 40 34 57 1 35 54 38 34 54 3 0.14 71 0 0 35 37 25 18 42 22.9 56 268 -76 36 4 39 35 10 10 36 7 36 35 7 12 0.14 72 0 0 35 49 51 18 42 15.3 55 268 -76 36 17 0 35 22 40 36 19 57 35 19 43 0.14 73 0 0 36 1 39 18 42 7.9 55 268 -76 36 28 43 35 34 33 36 31 40 35 31 36 0.14 74 0 0 36 12 50 18 42 0.6 54 269 -76 36 39 50 35 45 48 36 42 46 35 42 51 0.14 75 0 0 36 23 24 18 41 53.4 53 269 -77 36 50 20 35 56 26 36 53 15 35 53 30 0.14 76 0 0 36 33 21 18 41 46.2 52 269 -77 37 0 13 36 6 27 37 3 8 36 3 31 0.14 77 0 0 36 42 41 18 41 39.2 51 270 -76 37 9 30 36 15 51 37 12 25 36 12 56 0.14 78 0 0 36 51 26 18 41 32.3 51 270 -76 37 18 11 36 24 39 37 21 5 36 21 44 0.14 79 0 0 36 59 34 18 41 25.5 50 271 -76 37 26 16 36 32 51 37 29 10 36 29 56 0.14 80 0 0 37 7 7 18 41 18.8 49 271 -76 37 33 46 36 40 26 37 36 40 36 37 32 0.14 81 0 0 37 14 4 18 41 12.2 48 271 -76 37 40 41 36 47 26 37 43 34 36 44 33 0.14 82 0 0 37 20 26 18 41 5.7 48 272 -76 37 47 0 36 53 51 37 49 53 36 50 57 0.14 83 0 0 37 26 13 18 40 59.3 47 272 -75 37 52 45 36 59 40 37 55 37 36 56 46 0.14 84 0 0 37 31 25 18 40 53.0 46 273 -75 37 57 54 37 4 54 38 0 47 37 2 0 0.14 85 0 0 37 36 2 18 40 46.7 45 273 -75 38 2 29 37 9 32 38 5 22 37 6 39 0.15 86 0 0 37 40 4 18 40 40.6 45 274 -74 38 6 30 37 13 36 38 9 22 37 10 43 0.15 87 0 0 37 43 31 18 40 34.5 44 274 -74 38 9 56 37 17 4 38 12 48 37 14 12 0.15 88 0 0 37 46 24 18 40 28.6 43 275 -74 38 12 47 37 19 58 38 15 39 37 17 6 0.15 89 0 0 37 48 42 18 40 22.7 42 275 -73 38 15 4 37 22 17 38 17 56 37 19 25 0.15 90 0 0 37 50 25 18 40 17.0 41 276 -73 38 16 47 37 24 1 38 19 39 37 21 9 0.15 91 0 0 37 51 34 18 40 11.3 41 276 -72 38 17 56 37 25 11 38 20 48 37 22 18 0.15 92 0 0 37 52 9 18 40 5.7 40 277 -72 38 18 30 37 25 45 38 21 22 37 22 53 0.15 93 0 0 37 52 9 18 40 0.2 39 277 -71 38 18 31 37 25 45 38 21 22 37 22 53 0.15 94 0 0 37 51 34 18 39 54.7 38 278 -71 38 17 56 37 25 10 38 20 48 37 22 18 0.15 95 0 0 37 50 25 18 39 49.4 38 278 -70 38 16 48 37 24 1 38 19 40 37 21 8 0.15 96 0 0 37 48 41 18 39 44.1 37 279 -70 38 15 5 37 22 16 38 17 57 37 19 24 0.15 97 0 0 37 46 23 18 39 39.0 36 279 -69 38 12 47 37 19 56 38 15 39 37 17 4 0.15 98 0 0 37 43 29 18 39 33.9 35 280 -68 38 9 55 37 17 2 38 12 47 37 14 9 0.15 99 0 0 37 40 0 18 39 28.9 35 280 -68 38 6 27 37 13 31 38 9 20 37 10 38 0.15 100 0 0 37 35 56 18 39 24.0 34 281 -67 38 2 25 37 9 26 38 5 18 37 6 33 0.15 101 0 0 37 31 17 18 39 19.1 33 281 -67 37 57 48 37 4 44 38 0 41 37 1 51 0.15 102 0 0 37 26 2 18 39 14.4 32 282 -66 37 52 35 36 59 27 37 55 28 36 56 34 0.15 103 0 0 37 20 12 18 39 9.8 31 283 -65 37 46 47 36 53 34 37 49 41 36 50 40 0.15 104 0 0 37 13 45 18 39 5.2 31 283 -65 37 40 23 36 47 5 37 43 17 36 44 11 0.15 105 0 0 37 6 42 18 39 0.7 30 284 -64 37 33 23 36 39 59 37 36 17 36 37 4 0.15 106 0 0 36 59 2 18 38 56.3 29 284 -63 37 25 47 36 32 16 37 28 41 36 29 21 0.15 107 0 0 36 50 46 18 38 52.0 28 285 -63 37 17 34 36 23 56 37 20 29 36 21 1 0.15 108 0 0 36 41 52 18 38 47.8 27 285 -62 37 8 44 36 14 59 37 11 39 36 12 3 0.15 109 0 0 36 32 21 18 38 43.7 27 286 -61 36 59 17 36 5 23 37 2 12 36 2 27 0.15 110 0 0 36 22 12 18 38 39.7 26 286 -61 36 49 12 35 55 10 36 52 8 35 52 14 0.15 111 0 0 36 11 25 18 38 35.8 25 287 -60 36 38 29 35 44 18 36 41 26 35 41 21 0.15 112 0 0 35 59 59 18 38 31.9 24 288 -59 36 27 8 35 32 47 36 30 5 35 29 50 0.15 113 0 0 35 47 53 18 38 28.2 23 288 -59 36 15 8 35 20 37 36 18 5 35 17 39 0.15 114 0 0 35 35 9 18 38 24.5 23 289 -58 36 2 28 35 7 47 36 5 26 35 4 48 0.15 115 0 0 35 21 44 18 38 21.0 22 289 -57 35 49 9 34 54 16 35 52 8 34 51 17 0.15 116 0 0 35 7 39 18 38 17.6 21 290 -56 35 35 10 34 40 5 35 38 9 34 37 5 0.16 117 0 0 34 52 52 18 38 14.2 20 290 -56 35 20 29 34 25 13 35 23 29 34 22 12 0.16 118 0 0 34 37 24 18 38 11.0 19 291 -55 35 5 8 34 9 38 35 8 8 34 6 37 0.16 119 0 0 34 21 14 18 38 7.9 18 291 -54 34 49 4 33 53 22 34 52 6 33 50 20 0.16 120 0 0 34 4 21 18 38 4.9 18 292 -53 34 32 18 33 36 22 34 35 20 33 33 19 0.16 121 0 0 33 46 45 18 38 2.0 17 292 -52 34 14 49 33 18 38 34 17 52 33 15 35 0.16 122 0 0 33 28 25 18 37 59.3 16 293 -52 33 56 37 33 0 11 33 59 40 32 57 6 0.16 123 0 0 33 9 20 18 37 56.7 15 294 -51 33 37 40 32 40 58 33 40 44 32 37 53 0.16 124 0 0 32 49 30 18 37 54.1 14 294 -50 33 17 58 32 21 0 33 21 3 32 17 54 0.16 125 0 0 32 28 54 18 37 51.8 13 295 -49 32 57 30 32 0 16 33 0 37 31 57 9 0.16 126 0 0 32 7 32 18 37 49.5 12 295 -48 32 36 17 31 38 45 32 39 24 31 35 37 0.16 127 0 0 31 45 22 18 37 47.4 11 296 -48 32 14 16 31 16 26 32 17 24 31 13 17 0.16 128 0 0 31 22 25 18 37 45.5 10 296 -47 31 51 27 30 53 19 31 54 36 30 50 9 0.16 129 0 0 30 58 38 18 37 43.6 9 297 -46 31 27 50 30 29 23 31 31 0 30 26 12 0.16 130 0 0 30 34 2 18 37 42.0 8 297 -45 31 3 24 30 4 37 31 6 35 30 1 25 0.16 131 0 0 30 8 35 18 37 40.5 8 298 -44 30 38 7 29 39 0 30 41 20 29 35 47 0.16 132 0 0 29 42 18 18 37 39.1 7 298 -43 30 12 0 29 12 32 30 15 14 29 9 18 0.16 133 0 0 29 15 8 18 37 38.0 6 299 -42 29 45 1 28 45 12 29 48 16 28 41 56 0.16 134 0 0 28 47 6 18 37 37.0 5 299 -41 29 17 10 28 16 59 29 20 26 28 13 42 0.15 135 0 0 28 18 10 18 37 36.2 4 300 -40 28 48 25 27 47 52 28 51 43 27 44 34 0.15 136 0 0 27 48 20 18 37 35.5 3 300 -39 28 18 47 27 17 50 28 22 5 27 14 31 0.15 137 0 0 27 17 35 18 37 35.1 2 300 -39 27 48 13 26 46 53 27 51 33 26 43 32 0.13 138 0 0 26 45 53 18 37 34.9 1 301 -38 27 16 44 26 14 59 27 20 5 26 11 37 0.06 Uncertainty in time = +/- 2 secs Prediction of 2023 Nov 13.9 Data for the target star ------------------------ * name: TYC 1775-00633-1 * constellation : Aries * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 02 38 30.0786 DE: +27 30 54.074 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 02 38 30.0785 DE: +27 30 54.074 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.400,0.300) * V mag [mag]: 6.7 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (227) Philosophia asteroid class: approx. diameter [km]: 97 approx. diameter ["]: 0.044 distance from Earth [AU]: 2.99800 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#64 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): 0.008", 0.001", 69.391° remarks: * orbital elements for (227)Philosophia : Mean anomaly = 180.5756446279 deg Arg. of pericenter = 270.0742242642 deg Long. of node = 325.1596225676 deg Inclination = 9.0524215607 deg Eccentricity = 0.1964288425 Semimajor axis = 3.1670082966 AU Perihelion dist = 2.5449165227 AU Mag: H = 9.21, G = 0.15 Epoch of elements : MJD 60296.78312500 TDT (2023 Dec 18.7831) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#642023Oct09,9.62,2023,12,18,18.800656,0.090002,-0.113096,-4.445072,-3.520712,0.004086,0.000369,0.000001,0.000001 30.8447,27.6205,-102.86,-23.39,False TYC 1775-00633-1,2.64168850,27.5150206,0.00,6.72,0.00,0.0,4,,2.66524372,27.6204867,8.38,0.00,0,0,0 227,Philosophia,15.10,96.600,2.9980,0,0,-0.981,-10.32,,5.4,0 0,180.4387,2023,12,18,270.0742,325.1596,9.0524,0.19643,3.16701,2.54492,9.18,5.0,0.15 1.054,0.0077,0.0006,69,0.0077,Known errors,-1.00,0,-1,-1 20231218_0633-1,60261.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Nov 13, 20:56 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org