u23_ctio_400cm_2200nm_predicted_ring_event_times.txt produced Mon Apr 5 00:02:51 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_u23_ctio_400cm Event: u23 Planet: Uranus Reference: French et al. 1988 Icarus 73, 349-378 Title: Uranian ring orbits from earth-based and Voyager occultation observations. Computations from: 1985-05-04T02:50:59.8580Z to 1985-05-04T07:29:47.8580Z 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: 22735323 Star number: 83 Star name: U23 Star source catalog: UCAC2 Star RA (deg): 256.378486200 Star Dec (deg): -22.873890300 Star epoch: 2000-01-01T00:00:00.0000Z Star parallax (mas): 0.000000000 Star pm RA (mas/yr): -2.500000000 Star pm Dec (mas/yr): -11.700000000 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): 97.893847636 33.583458821 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 1985-05-04T04:55:59.25Z 1985-05-04T02:24:24.29Z 50750.72 -13.370 10.776 -0.99086 322.900 61.463 -75.318 lambda I 1985-05-04T04:56:53.73Z 1985-05-04T02:25:18.77Z 50026.01 -13.219 137.218 -0.99086 322.162 61.658 -75.265 delta I 1985-05-04T04:59:06.17Z 1985-05-04T02:27:31.21Z 48300.70 -12.823 153.447 -0.99086 320.276 62.132 -75.125 gamma I 1985-05-04T04:59:59.52Z 1985-05-04T02:28:24.56Z 47621.22 -12.649 8.669 -0.99086 319.478 62.323 -75.064 eta I 1985-05-04T05:00:34.88Z 1985-05-04T02:28:59.92Z 47176.07 -12.524 358.511 -0.99086 318.936 62.449 -75.022 beta I 1985-05-04T05:02:36.31Z 1985-05-04T02:31:01.37Z 45680.94 -12.090 167.788 -0.99085 316.996 62.883 -74.870 alpha I 1985-05-04T05:03:59.16Z 1985-05-04T02:32:24.22Z 44693.24 -11.762 318.422 -0.99084 315.598 63.179 -74.759 four I 1985-05-04T05:07:09.58Z 1985-05-04T02:35:34.65Z 42527.12 -10.929 12.753 -0.99084 312.148 63.858 -74.483 five I 1985-05-04T05:07:33.65Z 1985-05-04T02:35:58.72Z 42263.15 -10.818 110.534 -0.99088 311.689 63.944 -74.446 six I 1985-05-04T05:08:11.46Z 1985-05-04T02:36:36.53Z 41863.79 -10.642 128.515 -0.99084 310.947 64.079 -74.387 six E 1985-05-04T05:54:30.39Z 1985-05-04T03:22:55.61Z 41813.18 10.655 55.436 -0.99084 237.993 73.733 -67.805 five E 1985-05-04T05:55:03.24Z 1985-05-04T03:23:28.47Z 42170.21 10.821 36.084 -0.99088 237.355 73.842 -67.709 four E 1985-05-04T05:55:38.19Z 1985-05-04T03:24:03.41Z 42550.53 10.981 297.213 -0.99084 236.682 73.958 -67.607 alpha E 1985-05-04T05:58:50.10Z 1985-05-04T03:27:15.34Z 44737.66 11.831 235.907 -0.99084 233.197 74.591 -67.037 beta E 1985-05-04T06:00:07.03Z 1985-05-04T03:28:32.28Z 45658.65 12.121 82.619 -0.99085 231.897 74.843 -66.806 eta E 1985-05-04T06:02:09.93Z 1985-05-04T03:30:35.18Z 47176.23 12.573 269.436 -0.99086 229.927 75.243 -66.435 gamma E 1985-05-04T06:02:45.52Z 1985-05-04T03:31:10.77Z 47625.70 12.699 278.466 -0.99086 229.380 75.358 -66.327 delta E 1985-05-04T06:03:38.30Z 1985-05-04T03:32:03.56Z 48300.31 12.875 61.640 -0.99086 228.588 75.528 -66.166 lambda E 1985-05-04T06:05:50.32Z 1985-05-04T03:34:15.58Z 50026.01 13.276 41.695 -0.99086 226.702 75.951 -65.760 epsilon E 1985-05-04T06:07:12.17Z 1985-05-04T03:35:37.43Z 51121.87 13.511 273.402 -0.99086 225.597 76.211 -65.507 Event geometry at 1985-05-04T05:31:23.0000Z -------------------------------------- Ring opening angle B (deg): -82.24815 Position angle of pole P (deg): 6.68814 Observer-planet distance (km): 2726.448452 x 10^6 Light travel time (sec): 9094.453109