u11_ctio_400cm_2200nm_predicted_ring_event_times.txt produced Sun Apr 4 15:07:42 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_u11_ctio_400cm Event: u11 Planet: Uranus Reference: Elliot et al. 1981 Astron. J. 86, 127 Title: The 20 March 1980 Occultation by the Uranian Rings Computations from: 1980-03-20T04:00:00.0000Z to 1980-03-20T06:00:00.0000Z Observatory name: Cerro Tololo Inter-American Observatory Observatory code file directory: /Volumes/dione_raid2/Research/kernels/ Observatory code file: ObsCodes_pck00010_20200709_Elon+ocobs_v9BJ.obs Observatory code: 807 Observatory abbreviation: ctio Entry from observatory code file: 807 G +289 11 38.80 -30 10 08.9 2380 CTIO 4m - tweaked 2020 Apr 01 to match JPL Horizons pck00010.tpc Telescope: 400cm Instrument: Generic InSb High Speed Photometer Mean wavelength (nm) 2200nm Observatory latitude (deg): -30.169138889 Observatory E longitude (deg): 289.194111111 Observatory altitude (km): 2.380000000 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: 1815.108950819 -5214.008358653 -3187.793456948 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: 24610234 Star number: 35 Star name: U11 Star source catalog: UCAC2 Star RA (deg): 233.409978000 Star Dec (deg): -18.901289500 Star epoch: 2000-01-01T00:00:00.0000Z Star parallax (mas): 0.000000000 Star pm RA (mas/yr): -15.000000000 Star pm Dec (mas/yr): 2.500000000 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): -294.048893944 27.146614153 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 1980-03-20T04:10:50.36Z 1980-03-20T01:39:48.58Z 50774.30 -5.132 22.588 -0.91958 303.967 31.938 -58.263 lambda I 1980-03-20T04:13:19.68Z 1980-03-20T01:42:17.92Z 50026.01 -4.885 354.693 -0.91958 302.412 32.476 -58.436 delta I 1980-03-20T04:19:38.41Z 1980-03-20T01:48:36.69Z 48300.46 -4.210 92.117 -0.91958 298.259 33.841 -58.828 gamma I 1980-03-20T04:22:25.94Z 1980-03-20T01:51:24.23Z 47621.71 -3.888 26.207 -0.91958 296.329 34.445 -58.980 eta I 1980-03-20T04:24:23.98Z 1980-03-20T01:53:22.28Z 47176.32 -3.653 122.453 -0.91958 294.936 34.871 -59.079 beta I 1980-03-20T04:32:32.18Z 1980-03-20T02:01:30.53Z 45642.37 -2.607 339.524 -0.91961 288.908 36.633 -59.416 alpha I 1980-03-20T04:40:02.94Z 1980-03-20T02:09:01.33Z 44699.11 -1.555 54.862 -0.91959 283.023 38.260 -59.620 alpha E 1980-03-20T05:00:59.70Z 1980-03-20T02:29:58.22Z 44691.83 1.552 37.832 -0.91959 266.014 42.800 -59.635 beta E 1980-03-20T05:08:35.50Z 1980-03-20T02:37:34.06Z 45648.13 2.633 310.607 -0.91961 260.042 44.445 -59.439 eta E 1980-03-20T05:16:37.70Z 1980-03-20T02:45:36.31Z 47176.21 3.692 81.491 -0.91958 254.043 46.184 -59.118 gamma E 1980-03-20T05:18:34.53Z 1980-03-20T02:47:33.15Z 47621.40 3.933 342.459 -0.91958 252.652 46.605 -59.023 delta E 1980-03-20T05:21:20.24Z 1980-03-20T02:50:18.87Z 48300.24 4.262 44.511 -0.91958 250.723 47.202 -58.877 lambda E 1980-03-20T05:27:34.28Z 1980-03-20T02:56:32.95Z 50026.01 4.958 298.775 -0.91958 246.572 48.548 -58.498 epsilon E 1980-03-20T05:30:10.67Z 1980-03-20T02:59:09.35Z 50822.20 5.226 323.470 -0.91958 244.922 49.110 -58.321 Event geometry at 1980-03-20T04:47:01.0000Z -------------------------------------- Ring opening angle B (deg): -66.86481 Position angle of pole P (deg): 84.41643 Observer-planet distance (km): 2716.475849 x 10^6 Light travel time (sec): 9061.188085