u36_ctio_400cm_2200nm_predicted_ring_event_times.txt produced Tue Apr 13 21:32:34 2021 using rfrench@Achilles.local:/Volumes/PromisePegasus28TB_backup/dione_raid2/Research/uranus/PDART2014/programs/pro_occinfo2geom_plots_pds4_v7.pro Bundle ID: uranus_occ_u36_ctio_400cm Event: u36 Planet: Uranus Reference: J. L. Elliot and 13 colleagues. BAAS 19, 884 (1987) Title: A four-day occultation by Uranus and its rings Computations from: 1987-04-02T04:28:04.1100Z to 1987-04-02T12:03:00.5900Z 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: 333-124092 Star number: 114 Star name: U36 Star source catalog: UCAC4 Star RA (deg): 266.624681200 Star Dec (deg): -23.538897000 Star epoch: 2000-01-01T00:00:00.0000Z Star parallax (mas): 0.000000000 Star pm RA (mas/yr): -3.200000000 Star pm Dec (mas/yr): -8.100000000 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): 17.783060768 75.423918081 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) -------------------------------------------------------------------------------------------------------------------------------------- Atmosphere E 1987-04-02T05:08:50.36Z 28.145 -64.041 six E 1987-04-02T09:40:26.37Z 1987-04-02T07:03:09.98Z 41873.84 1.065 210.847 -0.97747 161.630 83.151 -16.788 five E 1987-04-02T09:46:23.05Z 1987-04-02T07:09:06.69Z 42255.24 1.066 255.362 -0.97775 161.768 83.357 -15.507 four E 1987-04-02T09:51:57.58Z 1987-04-02T07:14:41.26Z 42611.05 1.067 208.659 -0.97759 161.890 83.313 -14.304 alpha E 1987-04-02T10:24:46.93Z 1987-04-02T07:47:30.78Z 44712.48 1.068 79.550 -0.97764 162.617 79.459 -7.215 beta E 1987-04-02T10:39:21.12Z 1987-04-02T08:02:05.06Z 45644.89 1.066 35.718 -0.97770 162.937 76.772 -4.070 eta E 1987-04-02T11:03:20.19Z 1987-04-02T08:26:04.26Z 47176.08 1.060 18.723 -0.97769 163.461 71.944 1.094 gamma E 1987-04-02T11:10:23.55Z 1987-04-02T08:33:07.66Z 47624.53 1.058 68.477 -0.97769 163.613 70.474 2.608 delta E 1987-04-02T11:21:03.75Z 1987-04-02T08:43:47.92Z 48300.58 1.054 242.524 -0.97769 163.841 68.225 4.892 lambda E 1987-04-02T11:48:31.64Z 1987-04-02T09:11:15.96Z 50026.01 1.040 30.490 -0.97769 164.418 62.351 10.730 epsilon E 1987-04-02T12:00:26.26Z 1987-04-02T09:23:10.66Z 50766.26 1.032 340.623 -0.97769 164.663 59.782 13.238 Event geometry at 1987-04-02T04:28:04.0000Z -------------------------------------- Ring opening angle B (deg): -77.87531 Position angle of pole P (deg): 311.95670 Observer-planet distance (km): 2828.714855 x 10^6 Light travel time (sec): 9435.577112