IOTA/IOTA-ES occultation update for (757) Portlandia / UCAC4 292-091830 event on 2024 Jun 04, 21:59 UT Visible from Summary ------- On 2024 Jun 04 UT, the 33.7780346809906 km diameter asteroid (757) Portlandia will occult a 10.3 mag star in the constellation Scorpius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 3.36 mag to 13.65 mag (the magnitude of the asteroid) for at most 2.800 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: 2024 Jun 04, 21:50 - 2024 Jun 04, 22:08 * geocentric midpoint of event [JD]: 2460466.41632625 * magnitude of target star: 10.34 * magnitude drop [mag]: 3.36 * estimated maximum duration [s]: 2.800 * Moon: 3 % sunlit, 163° distance * Sun: 169° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 35 * 1 sigma uncertainty interval [path widths]: +/- 0.28 * 1 sigma uncertainty interval [seconds]: +/- 2.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.023, +/- 0.009) * 1 sigma uncertainty ellipse (major, minor, PA): (0.023", 0.006", 106°) * approx speed of asteroid's shadow [km/s]: 12.0877 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 292-091830 by 757 Portlandia on 2024 Jun 4 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 - 75 0 0 - 9 12 38 22 8 3.2 0 122 8 - 9 1 30 - 9 23 47 - 8 55 17 - 9 30 0 .... - 74 0 0 - 9 50 18 22 8 3.0 1 122 7 - 9 39 9 -10 1 27 - 9 32 56 -10 7 41 0.26 - 73 0 0 -10 28 1 22 8 2.6 3 122 6 -10 16 52 -10 39 11 -10 10 39 -10 45 25 0.24 - 72 0 0 -11 5 47 22 8 2.0 4 122 4 -10 54 37 -11 16 58 -10 48 24 -11 23 12 0.24 - 71 0 0 -11 43 34 22 8 1.2 5 121 3 -11 32 23 -11 54 45 -11 26 10 -12 0 59 0.23 - 70 0 0 -12 21 20 22 8 0.1 6 121 2 -12 10 10 -12 32 32 -12 3 56 -12 38 46 0.23 - 69 0 0 -12 59 6 22 7 58.8 7 121 1 -12 47 54 -13 10 17 -12 41 40 -13 16 32 0.23 - 68 0 0 -13 36 48 22 7 57.3 8 121 0 -13 25 37 -13 48 0 -13 19 23 -13 54 15 0.23 - 67 0 0 -14 14 27 22 7 55.6 10 121 -1 -14 3 15 -14 25 39 -13 57 1 -14 31 54 0.23 - 66 0 0 -14 52 0 22 7 53.7 11 120 -2 -14 40 49 -15 3 12 -14 34 34 -15 9 27 0.23 - 65 0 0 -15 29 27 22 7 51.6 12 120 -3 -15 18 16 -15 40 40 -15 12 2 -15 46 55 0.23 - 64 0 0 -16 6 47 22 7 49.2 13 120 -5 -15 55 36 -16 17 59 -15 49 22 -16 24 14 0.23 - 63 0 0 -16 43 58 22 7 46.7 14 119 -6 -16 32 47 -16 55 10 -16 26 33 -17 1 25 0.23 - 62 0 0 -17 21 0 22 7 44.0 15 119 -7 -17 9 49 -17 32 11 -17 3 35 -17 38 26 0.23 - 61 0 0 -17 57 50 22 7 41.1 16 119 -8 -17 46 40 -18 9 2 -17 40 26 -18 15 16 0.23 - 60 0 0 -18 34 29 22 7 38.0 17 118 -9 -18 23 19 -18 45 40 -18 17 5 -18 51 54 0.23 - 59 0 0 -19 10 55 22 7 34.7 19 118 -10 -18 59 45 -19 22 5 -18 53 32 -19 28 19 0.23 - 58 0 0 -19 47 6 22 7 31.3 20 118 -11 -19 35 57 -19 58 16 -19 29 44 -20 4 30 0.23 - 57 0 0 -20 23 3 22 7 27.7 21 117 -12 -20 11 54 -20 34 12 -20 5 42 -20 40 26 0.23 - 56 0 0 -20 58 44 22 7 23.9 22 117 -13 -20 47 36 -21 9 52 -20 41 24 -21 16 5 0.23 - 55 0 0 -21 34 8 22 7 19.9 23 117 -14 -21 23 1 -21 45 15 -21 16 49 -21 51 28 0.23 - 54 0 0 -22 9 14 22 7 15.8 24 116 -15 -21 58 8 -22 20 21 -21 51 56 -22 26 33 0.23 - 53 0 0 -22 44 1 22 7 11.6 25 116 -16 -22 32 56 -22 55 7 -22 26 45 -23 1 19 0.23 - 52 0 0 -23 18 30 22 7 7.2 26 115 -17 -23 7 25 -23 29 35 -23 1 15 -23 35 46 0.23 - 51 0 0 -23 52 38 22 7 2.7 27 115 -19 -23 41 34 -24 3 42 -23 35 25 -24 9 52 0.23 - 50 0 0 -24 26 25 22 6 58.0 28 114 -20 -24 15 22 -24 37 28 -24 9 13 -24 43 37 0.23 - 49 0 0 -24 59 50 22 6 53.2 29 114 -21 -24 48 49 -25 10 52 -24 42 41 -25 17 1 0.23 - 48 0 0 -25 32 53 22 6 48.3 30 113 -22 -25 21 53 -25 43 54 -25 15 46 -25 50 2 0.23 - 47 0 0 -26 5 34 22 6 43.2 31 113 -23 -25 54 35 -26 16 33 -25 48 28 -26 22 41 0.23 - 46 0 0 -26 37 50 22 6 38.1 32 112 -24 -26 26 53 -26 48 48 -26 20 47 -26 54 55 0.23 - 45 0 0 -27 9 43 22 6 32.8 33 112 -24 -26 58 47 -27 20 40 -26 52 41 -27 26 46 0.23 - 44 0 0 -27 41 11 22 6 27.4 34 111 -25 -27 30 16 -27 52 6 -27 24 12 -27 58 12 0.23 - 43 0 0 -28 12 14 22 6 22.0 35 111 -26 -28 1 21 -28 23 8 -27 55 17 -28 29 13 0.23 - 42 0 0 -28 42 52 22 6 16.4 36 110 -27 -28 32 0 -28 53 44 -28 25 57 -28 59 48 0.23 - 41 0 0 -29 13 3 22 6 10.8 37 110 -28 -29 2 13 -29 23 54 -28 56 11 -29 29 57 0.23 - 40 0 0 -29 42 48 22 6 5.0 38 109 -29 -29 32 0 -29 53 38 -29 25 58 -29 59 40 0.23 - 39 0 0 -30 12 7 22 5 59.2 39 108 -30 -30 1 20 -30 22 55 -29 55 19 -30 28 56 0.23 - 38 0 0 -30 40 59 22 5 53.4 40 108 -31 -30 30 13 -30 51 45 -30 24 14 -30 57 45 0.23 - 37 0 0 -31 9 23 22 5 47.4 41 107 -32 -30 58 39 -31 20 7 -30 52 40 -31 26 7 0.23 - 36 0 0 -31 37 20 22 5 41.4 42 106 -33 -31 26 38 -31 48 3 -31 20 40 -31 54 1 0.23 - 35 0 0 -32 4 49 22 5 35.3 43 106 -34 -31 54 9 -32 15 30 -31 48 12 -32 21 28 0.23 - 34 0 0 -32 31 50 22 5 29.2 44 105 -35 -32 21 12 -32 42 30 -32 15 16 -32 48 26 0.23 - 33 0 0 -32 58 24 22 5 23.0 45 104 -35 -32 47 47 -33 9 1 -32 41 52 -33 14 57 0.23 - 32 0 0 -33 24 29 22 5 16.8 46 103 -36 -33 13 53 -33 35 4 -33 7 59 -33 40 59 0.23 - 31 0 0 -33 50 5 22 5 10.5 47 103 -37 -33 39 32 -34 0 39 -33 33 39 -34 6 33 0.23 - 30 0 0 -34 15 13 22 5 4.2 47 102 -38 -34 4 42 -34 25 46 -33 58 50 -34 31 38 0.24 - 29 0 0 -34 39 53 22 4 57.9 48 101 -39 -34 29 23 -34 50 23 -34 23 32 -34 56 15 0.24 - 28 0 0 -35 4 4 22 4 51.5 49 100 -40 -34 53 36 -35 14 33 -34 47 46 -35 20 24 0.24 - 27 0 0 -35 27 47 22 4 45.1 50 99 -40 -35 17 20 -35 38 14 -35 11 31 -35 44 3 0.24 - 26 0 0 -35 51 1 22 4 38.6 51 98 -41 -35 40 36 -36 1 26 -35 34 48 -36 7 15 0.24 - 25 0 0 -36 13 46 22 4 32.1 52 97 -42 -36 3 23 -36 24 10 -35 57 36 -36 29 57 0.24 - 24 0 0 -36 36 3 22 4 25.6 52 96 -43 -36 25 42 -36 46 25 -36 19 56 -36 52 11 0.24 - 23 0 0 -36 57 51 22 4 19.1 53 96 -44 -36 47 32 -37 8 11 -36 41 47 -37 13 57 0.24 - 22 0 0 -37 19 11 22 4 12.6 54 95 -44 -37 8 54 -37 29 29 -37 3 10 -37 35 14 0.24 - 21 0 0 -37 40 3 22 4 6.0 55 94 -45 -37 29 47 -37 50 19 -37 24 4 -37 56 3 0.24 - 20 0 0 -38 0 26 22 3 59.5 56 93 -46 -37 50 12 -38 10 41 -37 44 30 -38 16 23 0.24 - 19 0 0 -38 20 21 22 3 52.9 56 91 -46 -38 10 9 -38 30 34 -38 4 28 -38 36 16 0.24 - 18 0 0 -38 39 48 22 3 46.3 57 90 -47 -38 29 37 -38 49 59 -38 23 57 -38 55 40 0.24 - 17 0 0 -38 58 47 22 3 39.7 58 89 -48 -38 48 38 -39 8 56 -38 42 59 -39 14 36 0.24 - 16 0 0 -39 17 18 22 3 33.2 59 88 -49 -39 7 11 -39 27 26 -39 1 33 -39 33 5 0.24 - 15 0 0 -39 35 21 22 3 26.6 59 87 -49 -39 25 16 -39 45 27 -39 19 38 -39 51 5 0.24 - 14 0 0 -39 52 57 22 3 20.0 60 86 -50 -39 42 53 -40 3 1 -39 37 17 -40 8 38 0.24 - 13 0 0 -40 10 5 22 3 13.4 61 85 -51 -40 0 3 -40 20 8 -39 54 28 -40 25 44 0.24 - 12 0 0 -40 26 46 22 3 6.8 62 83 -51 -40 16 46 -40 36 47 -40 11 11 -40 42 22 0.24 - 11 0 0 -40 43 0 22 3 0.2 62 82 -52 -40 33 1 -40 52 59 -40 27 27 -40 58 34 0.24 - 10 0 0 -40 58 47 22 2 53.6 63 81 -53 -40 48 49 -41 8 45 -40 43 16 -41 14 18 0.24 - 9 0 0 -41 14 7 22 2 47.0 64 79 -53 -41 4 11 -41 24 3 -40 58 39 -41 29 36 0.24 - 8 0 0 -41 29 0 22 2 40.4 64 78 -54 -41 19 6 -41 38 55 -41 13 34 -41 44 27 0.24 - 7 0 0 -41 43 27 22 2 33.8 65 76 -54 -41 33 34 -41 53 20 -41 28 3 -41 58 51 0.24 - 6 0 0 -41 57 27 22 2 27.2 66 75 -55 -41 47 36 -42 7 19 -41 42 6 -42 12 49 0.24 - 5 0 0 -42 11 1 22 2 20.7 66 73 -56 -42 1 11 -42 20 52 -41 55 42 -42 26 21 0.24 - 4 0 0 -42 24 9 22 2 14.1 67 72 -56 -42 14 21 -42 33 58 -42 8 53 -42 39 27 0.24 - 3 0 0 -42 36 52 22 2 7.6 67 70 -57 -42 27 4 -42 46 39 -42 21 37 -42 52 7 0.24 - 2 0 0 -42 49 8 22 2 1.0 68 68 -57 -42 39 22 -42 58 55 -42 33 56 -43 4 22 0.24 - 1 0 0 -43 0 59 22 1 54.5 69 66 -58 -42 51 15 -43 10 44 -42 45 49 -43 16 11 0.24 - 0 0 0 -43 12 25 22 1 48.0 69 64 -58 -43 2 42 -43 22 9 -42 57 16 -43 27 35 0.24 1 0 0 -43 23 26 22 1 41.5 70 62 -59 -43 13 43 -43 33 8 -43 8 19 -43 38 33 0.25 2 0 0 -43 34 1 22 1 35.0 70 60 -59 -43 24 20 -43 43 43 -43 18 56 -43 49 7 0.25 3 0 0 -43 44 12 22 1 28.5 71 58 -60 -43 34 32 -43 53 52 -43 29 8 -43 59 16 0.25 4 0 0 -43 53 57 22 1 22.0 71 56 -60 -43 44 19 -44 3 37 -43 38 56 -44 9 0 0.25 5 0 0 -44 3 19 22 1 15.5 72 54 -61 -43 53 41 -44 12 57 -43 48 19 -44 18 19 0.25 6 0 0 -44 12 15 22 1 9.1 72 51 -61 -44 2 39 -44 21 53 -43 57 17 -44 27 15 0.25 6 59 59 -44 20 48 22 1 2.6 73 49 -61 -44 11 12 -44 30 24 -44 5 51 -44 35 46 0.25 7 59 59 -44 28 56 22 0 56.2 73 46 -62 -44 19 21 -44 38 31 -44 14 1 -44 43 52 0.25 8 59 59 -44 36 40 22 0 49.8 73 44 -62 -44 27 6 -44 46 15 -44 21 46 -44 51 35 0.25 9 59 59 -44 44 1 22 0 43.4 74 41 -63 -44 34 27 -44 53 34 -44 29 8 -44 58 54 0.25 10 59 59 -44 50 57 22 0 37.0 74 38 -63 -44 41 25 -45 0 30 -44 36 6 -45 5 49 0.25 11 59 59 -44 57 30 22 0 30.6 74 35 -63 -44 47 58 -45 7 2 -44 42 40 -45 12 21 0.25 12 59 59 -45 3 39 22 0 24.2 75 32 -64 -44 54 8 -45 13 10 -44 48 50 -45 18 29 0.25 13 59 59 -45 9 25 22 0 17.8 75 29 -64 -44 59 55 -45 18 55 -44 54 37 -45 24 14 0.25 14 59 59 -45 14 47 22 0 11.5 75 26 -64 -45 5 17 -45 24 17 -45 0 0 -45 29 35 0.25 15 59 59 -45 19 46 22 0 5.1 75 23 -65 -45 10 17 -45 29 15 -45 5 0 -45 34 33 0.25 16 59 59 -45 24 22 21 59 58.8 76 19 -65 -45 14 53 -45 33 51 -45 9 37 -45 39 8 0.25 17 59 59 -45 28 35 21 59 52.5 76 16 -65 -45 19 7 -45 38 3 -45 13 50 -45 43 20 0.25 18 59 59 -45 32 24 21 59 46.1 76 12 -65 -45 22 57 -45 41 52 -45 17 40 -45 47 9 0.25 19 59 59 -45 35 51 21 59 39.8 76 9 -66 -45 26 24 -45 45 18 -45 21 8 -45 50 35 0.25 20 59 59 -45 38 55 21 59 33.5 76 5 -66 -45 29 28 -45 48 22 -45 24 12 -45 53 38 0.25 21 59 59 -45 41 35 21 59 27.2 76 2 -66 -45 32 9 -45 51 2 -45 26 53 -45 56 18 0.25 22 59 59 -45 43 53 21 59 21.0 76 358 -66 -45 34 27 -45 53 20 -45 29 12 -45 58 36 0.25 23 59 59 -45 45 49 21 59 14.7 76 355 -66 -45 36 23 -45 55 15 -45 31 7 -46 0 31 0.25 24 59 59 -45 47 21 21 59 8.4 76 352 -66 -45 37 55 -45 56 47 -45 32 40 -46 2 3 0.25 25 59 59 -45 48 31 21 59 2.2 76 348 -67 -45 39 5 -45 57 57 -45 33 50 -46 3 12 0.25 26 59 59 -45 49 18 21 58 55.9 75 345 -67 -45 39 52 -45 58 43 -45 34 37 -46 3 59 0.25 27 59 59 -45 49 42 21 58 49.7 75 342 -67 -45 40 17 -45 59 8 -45 35 2 -46 4 23 0.25 28 59 59 -45 49 44 21 58 43.4 75 338 -67 -45 40 18 -45 59 9 -45 35 3 -46 4 25 0.25 30 0 0 -45 49 22 21 58 37.2 75 335 -67 -45 39 57 -45 58 48 -45 34 42 -46 4 4 0.25 31 0 0 -45 48 39 21 58 31.0 74 332 -67 -45 39 13 -45 58 4 -45 33 58 -46 3 20 0.25 32 0 0 -45 47 32 21 58 24.8 74 329 -67 -45 38 6 -45 56 58 -45 32 51 -46 2 14 0.25 33 0 0 -45 46 3 21 58 18.5 74 327 -67 -45 36 37 -45 55 29 -45 31 22 -46 0 45 0.25 34 0 0 -45 44 11 21 58 12.3 73 324 -67 -45 34 45 -45 53 37 -45 29 29 -45 58 53 0.25 35 0 0 -45 41 56 21 58 6.1 73 321 -66 -45 32 30 -45 51 22 -45 27 14 -45 56 39 0.25 36 0 0 -45 39 18 21 57 59.9 73 319 -66 -45 29 52 -45 48 45 -45 24 36 -45 54 1 0.25 37 0 0 -45 36 18 21 57 53.7 72 316 -66 -45 26 51 -45 45 45 -45 21 35 -45 51 1 0.25 38 0 0 -45 32 54 21 57 47.5 72 314 -66 -45 23 27 -45 42 22 -45 18 10 -45 47 38 0.25 39 0 0 -45 29 7 21 57 41.4 71 312 -66 -45 19 40 -45 38 36 -45 14 23 -45 43 53 0.25 40 0 0 -45 24 58 21 57 35.2 71 310 -66 -45 15 29 -45 34 26 -45 10 13 -45 39 44 0.25 41 0 0 -45 20 25 21 57 29.0 70 308 -66 -45 10 56 -45 29 54 -45 5 39 -45 35 12 0.25 42 0 0 -45 15 29 21 57 22.8 70 305 -65 -45 5 59 -45 24 59 -45 0 42 -45 30 16 0.25 43 0 0 -45 10 9 21 57 16.7 69 304 -65 -45 0 39 -45 19 40 -44 55 22 -45 24 58 0.25 44 0 0 -45 4 27 21 57 10.5 69 302 -65 -44 54 56 -45 13 58 -44 49 38 -45 19 16 0.25 45 0 0 -44 58 20 21 57 4.3 68 300 -65 -44 48 49 -45 7 52 -44 43 30 -45 13 11 0.25 46 0 0 -44 51 50 21 56 58.2 68 298 -64 -44 42 18 -45 1 23 -44 36 59 -45 6 42 0.25 47 0 0 -44 44 56 21 56 52.0 67 296 -64 -44 35 23 -44 54 30 -44 30 4 -44 59 50 0.25 48 0 0 -44 37 39 21 56 45.8 67 295 -64 -44 28 5 -44 47 13 -44 22 45 -44 52 33 0.25 49 0 0 -44 29 57 21 56 39.7 66 293 -63 -44 20 22 -44 39 32 -44 15 2 -44 44 53 0.25 50 0 0 -44 21 51 21 56 33.5 66 292 -63 -44 12 16 -44 31 27 -44 6 55 -44 36 49 0.25 51 0 0 -44 13 21 21 56 27.4 65 290 -63 -44 3 45 -44 22 58 -43 58 23 -44 28 20 0.25 52 0 0 -44 4 27 21 56 21.3 64 289 -62 -43 54 49 -44 14 5 -43 49 27 -44 19 27 0.24 53 0 0 -43 55 8 21 56 15.1 64 287 -62 -43 45 29 -44 4 47 -43 40 7 -44 10 10 0.24 54 0 0 -43 45 24 21 56 9.0 63 286 -61 -43 35 45 -43 55 5 -43 30 22 -44 0 28 0.24 55 0 0 -43 35 16 21 56 2.9 62 284 -61 -43 25 35 -43 44 57 -43 20 11 -43 50 21 0.24 56 0 0 -43 24 42 21 55 56.7 62 283 -60 -43 15 0 -43 34 25 -43 9 36 -43 39 50 0.24 57 0 0 -43 13 44 21 55 50.6 61 282 -60 -43 4 1 -43 23 27 -42 58 36 -43 28 53 0.24 58 0 0 -43 2 20 21 55 44.5 60 281 -59 -42 52 35 -43 12 5 -42 47 10 -43 17 31 0.24 59 0 0 -42 50 30 21 55 38.4 60 279 -59 -42 40 45 -43 0 17 -42 35 18 -43 5 44 0.24 60 0 0 -42 38 15 21 55 32.3 59 278 -58 -42 28 28 -42 48 3 -42 23 1 -42 53 31 0.24 61 0 0 -42 25 34 21 55 26.2 58 277 -58 -42 15 46 -42 35 23 -42 10 18 -42 40 52 0.24 62 0 0 -42 12 27 21 55 20.1 58 276 -57 -42 2 38 -42 22 18 -41 57 9 -42 27 47 0.24 63 0 0 -41 58 54 21 55 14.1 57 275 -57 -41 49 3 -42 8 46 -41 43 34 -42 14 16 0.24 64 0 0 -41 44 55 21 55 8.0 56 274 -56 -41 35 2 -41 54 48 -41 29 32 -42 0 19 0.24 65 0 0 -41 30 29 21 55 1.9 56 273 -56 -41 20 35 -41 40 23 -41 15 4 -41 45 55 0.24 66 0 0 -41 15 36 21 54 55.9 55 272 -55 -41 5 41 -41 25 32 -41 0 9 -41 31 5 0.24 67 0 0 -41 0 17 21 54 49.9 54 271 -55 -40 50 19 -41 10 14 -40 44 47 -41 15 48 0.24 68 0 0 -40 44 30 21 54 43.9 53 270 -54 -40 34 31 -40 54 29 -40 28 58 -41 0 4 0.24 69 0 0 -40 28 16 21 54 37.9 53 269 -53 -40 18 16 -40 38 17 -40 12 41 -40 43 52 0.24 70 0 0 -40 11 35 21 54 31.9 52 268 -53 -40 1 33 -40 21 38 -39 55 58 -40 27 14 0.24 71 0 0 -39 54 27 21 54 25.9 51 267 -52 -39 44 23 -40 4 31 -39 38 47 -40 10 8 0.24 72 0 0 -39 36 50 21 54 20.0 50 266 -51 -39 26 45 -39 46 56 -39 21 8 -39 52 34 0.24 73 0 0 -39 18 46 21 54 14.1 50 265 -51 -39 8 39 -39 28 53 -39 3 1 -39 34 32 0.24 74 0 0 -39 0 14 21 54 8.2 49 264 -50 -38 50 5 -39 10 23 -38 44 26 -39 16 3 0.24 75 0 0 -38 41 13 21 54 2.3 48 263 -49 -38 31 3 -38 51 24 -38 25 23 -38 57 5 0.24 76 0 0 -38 21 45 21 53 56.5 47 262 -49 -38 11 33 -38 31 57 -38 5 52 -38 37 39 0.24 77 0 0 -38 1 48 21 53 50.7 47 261 -48 -37 51 34 -38 12 2 -37 45 52 -38 17 45 0.24 78 0 0 -37 41 22 21 53 44.9 46 261 -47 -37 31 7 -37 51 39 -37 25 24 -37 57 22 0.24 79 0 0 -37 20 28 21 53 39.2 45 260 -47 -37 10 11 -37 30 46 -37 4 27 -37 36 31 0.24 80 0 0 -36 59 5 21 53 33.5 44 259 -46 -36 48 46 -37 9 25 -36 43 1 -37 15 11 0.24 81 0 0 -36 37 14 21 53 27.8 43 258 -45 -36 26 53 -36 47 35 -36 21 7 -36 53 22 0.24 82 0 0 -36 14 53 21 53 22.2 42 257 -44 -36 4 31 -36 25 17 -35 58 43 -36 31 5 0.24 83 0 0 -35 52 4 21 53 16.7 42 257 -43 -35 41 39 -36 2 29 -35 35 51 -36 8 18 0.24 84 0 0 -35 28 46 21 53 11.1 41 256 -43 -35 18 19 -35 39 13 -35 12 30 -35 45 3 0.24 85 0 0 -35 4 59 21 53 5.7 40 255 -42 -34 54 30 -35 15 27 -34 48 40 -35 21 18 0.24 86 0 0 -34 40 42 21 53 0.2 39 255 -41 -34 30 12 -34 51 13 -34 24 21 -34 57 5 0.24 87 0 0 -34 15 57 21 52 54.9 38 254 -40 -34 5 25 -34 26 30 -33 59 33 -34 32 23 0.24 88 0 0 -33 50 43 21 52 49.6 37 253 -39 -33 40 9 -34 1 18 -33 34 16 -34 7 11 0.24 89 0 0 -33 25 0 21 52 44.4 36 253 -39 -33 14 25 -33 35 36 -33 8 31 -33 41 31 0.24 90 0 0 -32 58 49 21 52 39.2 35 252 -38 -32 48 11 -33 9 27 -32 42 16 -33 15 22 0.24 91 0 0 -32 32 8 21 52 34.1 34 251 -37 -32 21 29 -32 42 48 -32 15 33 -32 48 45 0.24 92 0 0 -32 5 0 21 52 29.1 33 251 -36 -31 54 19 -32 15 41 -31 48 22 -32 21 39 0.24 93 0 0 -31 37 22 21 52 24.2 33 250 -35 -31 26 40 -31 48 6 -31 20 42 -31 54 4 0.24 94 0 0 -31 9 17 21 52 19.4 32 249 -34 -30 58 33 -31 20 2 -30 52 34 -31 26 2 0.24 95 0 0 -30 40 44 21 52 14.6 31 249 -33 -30 29 58 -30 51 30 -30 23 58 -30 57 31 0.24 96 0 0 -30 11 43 21 52 10.0 30 248 -32 -30 0 55 -30 22 31 -29 54 54 -30 28 33 0.24 97 0 0 -29 42 14 21 52 5.4 29 248 -32 -29 31 25 -29 53 4 -29 25 23 -29 59 7 0.24 98 0 0 -29 12 19 21 52 1.0 28 247 -31 -29 1 28 -29 23 10 -28 55 25 -29 29 14 0.24 99 0 0 -28 41 56 21 51 56.6 27 247 -30 -28 31 4 -28 52 49 -28 25 0 -28 58 54 0.24 100 0 0 -28 11 8 21 51 52.4 26 246 -29 -28 0 14 -28 22 2 -27 54 9 -28 28 7 0.24 101 0 0 -27 39 53 21 51 48.3 25 246 -28 -27 28 57 -27 50 49 -27 22 52 -27 56 55 0.24 102 0 0 -27 8 12 21 51 44.3 24 245 -27 -26 57 16 -27 19 10 -26 51 10 -27 25 17 0.24 103 0 0 -26 36 7 21 51 40.5 23 245 -26 -26 25 9 -26 47 6 -26 19 2 -26 53 13 0.24 104 0 0 -26 3 37 21 51 36.8 22 244 -25 -25 52 38 -26 14 37 -25 46 30 -26 20 46 0.24 105 0 0 -25 30 43 21 51 33.2 21 244 -24 -25 19 42 -25 41 45 -25 13 34 -25 47 54 0.24 106 0 0 -24 57 26 21 51 29.8 20 243 -23 -24 46 24 -25 8 29 -24 40 15 -25 14 38 0.24 107 0 0 -24 23 46 21 51 26.5 19 243 -22 -24 12 43 -24 34 50 -24 6 33 -24 41 0 0.24 108 0 0 -23 49 44 21 51 23.3 17 242 -21 -23 38 40 -24 0 49 -23 32 29 -24 7 0 0.24 109 0 0 -23 15 21 21 51 20.4 16 242 -20 -23 4 15 -23 26 27 -22 58 4 -23 32 38 0.24 110 0 0 -22 40 37 21 51 17.6 15 241 -19 -22 29 30 -22 51 44 -22 23 19 -22 57 56 0.24 111 0 0 -22 5 33 21 51 14.9 14 241 -18 -21 54 26 -22 16 41 -21 48 14 -22 22 54 0.25 112 0 0 -21 30 10 21 51 12.5 13 241 -17 -21 19 2 -21 41 19 -21 12 50 -21 47 32 0.25 113 0 0 -20 54 30 21 51 10.2 12 240 -16 -20 43 20 -21 5 39 -20 37 8 -21 11 53 0.25 114 0 0 -20 18 32 21 51 8.1 11 240 -15 -20 7 22 -20 29 42 -20 1 9 -20 35 56 0.25 115 0 0 -19 42 18 21 51 6.2 10 240 -13 -19 31 7 -19 53 29 -19 24 53 -19 59 43 0.25 116 0 0 -19 5 48 21 51 4.5 9 239 -12 -18 54 37 -19 17 0 -18 48 23 -19 23 15 0.26 117 0 0 -18 29 5 21 51 2.9 8 239 -11 -18 17 53 -18 40 17 -18 11 39 -18 46 32 0.26 118 0 0 -17 52 8 21 51 1.6 6 239 -10 -17 40 56 -18 3 21 -17 34 41 -18 9 36 0.27 119 0 0 -17 14 59 21 51 0.5 5 238 -9 -17 3 47 -17 26 12 -16 57 32 -17 32 28 0.28 120 0 0 -16 37 39 21 50 59.6 4 238 -8 -16 26 27 -16 48 53 -16 20 12 -16 55 8 0.30 121 0 0 -16 0 10 21 50 58.9 3 238 -7 -15 48 57 -16 11 23 -15 42 42 -16 17 39 0.32 122 0 0 -15 22 32 21 50 58.4 2 238 -6 -15 11 19 -15 33 45 -15 5 4 -15 40 1 0.38 123 0 0 -14 44 46 21 50 58.1 1 237 -5 -14 33 33 -14 56 0 -14 27 18 -15 2 15 0.61 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 14.4 Data for the target star ------------------------ * name: UCAC4 292-091830 * constellation : Scorpius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 16 23 18.7758 DE: -31 43 30.981 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 16 23 18.7758 DE: -31 43 30.982 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 10.3 * B mag [mag]: 11.0 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (757) Portlandia asteroid class: approx. diameter [km]: 34 approx. diameter ["]: 0.029 distance from Earth [AU]: 1.62650 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#93 date of fit: 2023 Apr 24 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): 0.023", 0.006", 105.7° remarks: * orbital elements for (757)Portlandia : Mean anomaly = 186.1651017957 deg Arg. of pericenter = 44.1466020637 deg Long. of node = 22.4292603800 deg Inclination = 8.1711449310 deg Eccentricity = 0.1080954776 Semimajor axis = 2.3737096800 AU Perihelion dist = 2.1171223984 AU Mag: H = 10.11, G = 0.15 Epoch of elements : MJD 60465.91632646 TDT (2024 Jun 04.9163) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#932023Apr24,2.80,2024,6,4,21.991830,-0.012789,-0.236400,-6.812668,0.368886,0.000633,0.000867,0.000001,0.000000 22.5151,-31.7834,-150.25,22.57,False UCAC4 292-091830,16.38854884,-31.7252726,11.01,10.34,9.98,0.1,0,,16.41483689,-31.7834472,3.36,3.28,0,0,0 757,Portlandia,13.65,33.896,1.6265,0,0,-2.888,2.00,,1.8,0 0,185.9181,2024,6,4,44.1466,22.4293,8.1711,0.10810,2.37371,2.11712,10.11,5.0,0.15 1.279,0.0233,0.0063,106,0.0080,Known errors,0.81,0,-1,-1 20240604_091830,60139.37 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 08:52 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org