u36_irtf_320cm_2200nm_predicted_ring_event_times.txt produced Mon Apr 5 07:59:25 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_u36_irtf_320cm 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: 1987-03-30T11:59:55.8660Z to 1987-04-02T15:21:40.3300Z Observatory name: NASA Infrared Telescope Facility Observatory code file directory: /Volumes/dione_raid2/Research/kernels/ Observatory code file: ObsCodes_pck00010_20200709_Elon+ocobs_v9BJ.obs Observatory code: 568 Observatory abbreviation: irtf Entry from observatory code file: 568 G +204 31 40.08 +19 49 34.0 4212 Mauna Kea pck00010.tpc Telescope: 320cm Instrument: Generic InSb High Speed Photometer Mean wavelength (nm) 2200nm Observatory latitude (deg): 19.826111111 Observatory E longitude (deg): 204.527800000 Observatory altitude (km): 4.212000000 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: -5464.341062821 -2493.446346975 2151.026113131 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) -------------------------------------------------------------------------------------------------------------------------------------- epsilon I 1987-03-30T12:02:35.23Z 1987-03-30T09:24:55.06Z 50787.34 -0.612 27.044 -0.97769 206.996 21.876 -56.706 lambda I 1987-03-30T12:24:01.93Z 1987-03-30T09:46:21.88Z 50026.01 -0.571 77.321 -0.97769 206.867 25.827 -52.786 delta I 1987-03-30T13:19:12.07Z 1987-03-30T10:41:32.34Z 48300.35 -0.473 290.157 -0.97769 206.487 35.001 -41.521 gamma I 1987-03-30T13:43:49.09Z 1987-03-30T11:06:09.51Z 47628.84 -0.436 116.245 -0.97769 206.308 38.482 -36.160 eta I 1987-03-30T14:01:39.01Z 1987-03-30T11:23:59.53Z 47176.17 -0.410 66.644 -0.97769 206.178 40.698 -32.196 beta I 1987-03-30T15:10:02.05Z 1987-03-30T12:32:22.96Z 45659.21 -0.334 84.209 -0.97770 205.722 46.115 -16.589 alpha I 1987-03-30T15:58:34.28Z 1987-03-30T13:20:55.47Z 44739.78 -0.302 128.466 -0.97764 205.484 46.336 -5.283 eta E 1987-04-02T12:30:28.11Z 1987-04-02T09:53:12.67Z 47176.08 1.061 11.560 -0.97769 156.405 29.034 -50.638 gamma E 1987-04-02T12:37:28.68Z 1987-04-02T10:00:13.28Z 47623.93 1.070 61.301 -0.97769 156.534 30.225 -49.281 delta E 1987-04-02T12:47:57.45Z 1987-04-02T10:10:42.11Z 48300.61 1.084 235.324 -0.97769 156.732 31.957 -47.203 lambda E 1987-04-02T13:14:08.30Z 1987-04-02T10:36:53.11Z 50026.01 1.114 23.244 -0.97769 157.242 35.996 -41.803 epsilon E 1987-04-02T13:25:27.41Z 1987-04-02T10:48:12.27Z 50786.10 1.126 333.357 -0.97769 157.470 37.597 -39.395 Event geometry at 1987-04-01T03:06:08.0000Z -------------------------------------- Ring opening angle B (deg): -77.87531 Position angle of pole P (deg): 311.95670 Observer-planet distance (km): 2828.379672 x 10^6 Light travel time (sec): 9434.459061