u17b_saao_188cm_2220nm_predicted_ring_event_times.txt produced Sun Apr 4 23:53:07 2021 using rfrench@Achilles.fios-router.home:/Volumes/PromisePegasus28TB_backup/dione_raid2/Research/uranus/PDART2014/programs/pro_occinfo2geom_plots_pds4_v7.pro Bundle ID: uranus_occ_u17b_saao_188cm Event: u17b Planet: Uranus Reference: Elliot et al. Icarus 71, 91-102 (1987) Title: The Occultation of KME 17 by Uranus and its Rings Computations from: 1983-03-24T22:55:59.0000Z to 1983-03-25T04:55:42.4000Z Observatory name: South African Astronomical Observatory Observatory code file directory: /Volumes/dione_raid2/Research/kernels/ Observatory code file: ObsCodes_pck00010_20200709_Elon+ocobs_v9BJ.obs Observatory code: SAA Observatory abbreviation: saao Entry from observatory code file: SAA G +020 48 38.52 -32 22 46.3 1768 SAAO SUTHERLAND 74" ocobs_v9BJ.tx Telescope: 188cm Instrument: Generic InSb High Speed Photometer Mean wavelength (nm) 2220nm Observatory latitude (deg): -32.379527778 Observatory E longitude (deg): 20.810700000 Observatory altitude (km): 1.768000000 Ellipsoid source: /Volumes/dione_raid2/Research/kernels/pck00010.tpc Observatory reference frame: ITRF93 Earth equatorial radius (km): 6378.136600000 Earth 1/flattening: 298.257006177 Topocentric position vector: 5041.279432685 1916.079799298 -3396.994745721 Leapsecond kernel file: /Volumes/dione_raid2/Research/kernels/naif0012.tls Star catalog directory: /Volumes/dione_raid2/Research/RINGFIT/stars/data/ Star catalog file: ustarsALLd.v3.merged.sortedA.csv Star catalog ID: 80841 Star number: 75 Star name: U17 Star source catalog: Hipparcos Star RA (deg): 247.630359900 Star Dec (deg): -21.741990010 Star epoch: 1991-04-02T13:30:00.0000Z Star parallax (mas): 5.120000000 Star pm RA (mas/yr): -3.360000000 Star pm Dec (mas/yr): 5.480000000 Star catalog positions in frame: J2000 Star frame for calculations: J2000 Heliocentric frame for calculations: J2000 Ringfit savefile directory: /Volumes/dione_raid2/Research/RINGFIT/tests/Uranus/Ur017L/savefiles/ Ringfit savefile for star/time offsets: ringfit_v1.8.Ur017L-RF-V0204.sav Ringfit output file directory: /Volumes/dione_raid2/Research/RINGFIT/tests/Uranus/Ur017L/outfiles/ Ringfit output file: ringfit_v1.8.Ur017L-RF-V0204.out Star offsets dRA,dDec (mas): -35.888294013 4.293142371 Time offset for this obstr./event (sec): 0.000000000 Kernel directory: /Volumes/dione_raid2/Research/kernels/ ../../../../kernels/ura111.bsp ../../../../kernels/vgr2.ura111.bsp ../../../../kernels/earthstns_itrf93_040916.bsp ../../../../kernels/earth_720101_031229.bpc ../../../../kernels/pg3f0000r.bsp ../../../../kernels/pg490000r.bsp ../../../../kernels/naif0012.tls /Volumes/dione_raid2/Research/RINGFIT/tests/Uranus/Ur017L/savefiles/../kernels/RAJobs_U111+rgf9.spk /Volumes/dione_raid2/Research/RINGFIT/tests/Uranus/Ur017L/savefiles/../kernels/URKALLv1.spk /Volumes/dione_raid2/Research/kernels/uranus_ringframes_rfrench20201201_v1.tf /Volumes/dione_raid2/Research/kernels/pck00010.tpc Predicted Ring/Atmosphere Occultation Events -------------------------------------------------------------------------------------------------------------------------------------- Ring I/E ------ UTC(Earth) ----- ----- UTC(@ring) ------ R(model) R-dot Anomaly Sin B Ulon Alt(deg) Sun(deg) -------------------------------------------------------------------------------------------------------------------------------------- epsilon I 1983-03-25T00:26:01.18Z 1983-03-24T21:52:11.72Z 50897.35 -4.814 51.962 -0.98067 32.701 54.592 -50.772 lambda I 1983-03-25T00:29:02.59Z 1983-03-24T21:55:13.15Z 50026.01 -4.791 264.808 -0.98067 33.267 55.226 -50.330 delta I 1983-03-25T00:35:04.56Z 1983-03-24T22:01:15.15Z 48300.53 -4.741 106.883 -0.98067 34.458 56.488 -49.427 gamma I 1983-03-25T00:37:28.17Z 1983-03-24T22:03:38.78Z 47621.17 -4.719 356.368 -0.98067 34.955 56.987 -49.061 eta I 1983-03-25T00:39:02.62Z 1983-03-24T22:05:13.23Z 47176.09 -4.704 31.309 -0.98067 35.289 57.315 -48.817 beta I 1983-03-25T00:44:30.73Z 1983-03-24T22:10:41.38Z 45641.66 -4.648 13.497 -0.98067 36.502 58.453 -47.958 alpha I 1983-03-25T00:47:51.88Z 1983-03-24T22:14:02.54Z 44709.56 -4.610 285.514 -0.98069 37.291 59.148 -47.421 four I 1983-03-25T00:55:46.44Z 1983-03-24T22:21:57.15Z 42546.34 -4.511 303.392 -0.98064 39.270 60.781 -46.124 five I 1983-03-25T00:56:52.99Z 1983-03-24T22:23:03.70Z 42247.08 -4.495 98.712 -0.98074 39.563 61.009 -45.939 six I 1983-03-25T00:58:14.70Z 1983-03-24T22:24:25.42Z 41879.50 -4.475 187.481 -0.98046 39.938 61.288 -45.711 Atmosphere I 1983-03-25T02:12:56.12Z 75.308 -31.931 Atmosphere E 1983-03-25T03:06:54.27Z 79.152 -20.997 six E 1983-03-25T04:17:36.77Z 1983-03-25T01:43:48.59Z 41819.31 4.556 294.993 -0.98046 147.843 69.363 -6.212 five E 1983-03-25T04:19:25.88Z 1983-03-25T01:45:37.71Z 42306.52 4.583 207.105 -0.98074 148.347 69.017 -5.828 four E 1983-03-25T04:20:16.68Z 1983-03-25T01:46:28.51Z 42543.58 4.597 52.331 -0.98064 148.577 68.855 -5.650 alpha E 1983-03-25T04:27:59.17Z 1983-03-25T01:54:11.04Z 44692.06 4.704 38.450 -0.98069 150.561 67.362 -4.024 beta E 1983-03-25T04:31:26.58Z 1983-03-25T01:57:38.47Z 45673.66 4.748 128.054 -0.98067 151.389 66.683 -3.294 eta E 1983-03-25T04:36:40.99Z 1983-03-25T02:02:52.92Z 47176.37 4.809 148.295 -0.98067 152.581 65.645 -2.188 gamma E 1983-03-25T04:38:14.88Z 1983-03-25T02:04:26.81Z 47628.66 4.826 114.042 -0.98067 152.922 65.333 -1.858 delta E 1983-03-25T04:40:33.80Z 1983-03-25T02:06:45.75Z 48300.65 4.850 225.541 -0.98067 153.415 64.869 -1.370 lambda E 1983-03-25T04:46:27.44Z 1983-03-25T02:12:39.42Z 50026.01 4.907 25.886 -0.98067 154.611 63.682 -0.126 epsilon E 1983-03-25T04:51:37.32Z 1983-03-25T02:17:49.32Z 51553.48 4.952 174.604 -0.98067 155.594 62.633 0.963 Event geometry at 1983-03-25T02:39:56.0000Z -------------------------------------- Ring opening angle B (deg): -78.71537 Position angle of pole P (deg): 56.03599 Observer-planet distance (km): 2766.486534 x 10^6 Light travel time (sec): 9228.005777