u12_lco_250cm_2200nm_predicted_ring_event_times.txt produced Sun Apr 4 16:13:03 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_u12_lco_250cm Event: u12 Planet: Uranus Reference: French et al. 1986 Icarus 67, 134-163 Title: Structure of the Uranian rings II. Ring orbits and widths. Computations from: 1980-08-15T21:52:50.6650Z to 1980-08-16T01:04:51.9800Z Observatory name: Las Campanas Observatory Observatory code file directory: /Volumes/dione_raid2/Research/kernels/ Observatory code file: ObsCodes_pck00010_20200709_Elon+ocobs_v9BJ.obs Observatory code: LAS Observatory abbreviation: lco Entry from observatory code file: LAS G +289 17 52.80 -29 00 12.8 2270 Las Campanas Observatory Telescope: 250cm Instrument: Generic InSb High Speed Photometer Mean wavelength (nm) 2200nm Observatory latitude (deg): -29.003555556 Observatory E longitude (deg): 289.298000000 Observatory altitude (km): 2.270000000 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: 1845.617303240 -5270.845524126 -3075.346302194 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: 25096598 Star number: 39 Star name: U12 Star source catalog: UCAC2 Star RA (deg): 229.541725300 Star Dec (deg): -17.994799500 Star epoch: 2000-01-01T00:00:00.0000Z Star parallax (mas): 0.000000000 Star pm RA (mas/yr): -12.700000000 Star pm Dec (mas/yr): 10.000000000 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): -197.025441657 125.568807336 Time offset for this obstr./event (sec): 0.130658016 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 1980-08-15T21:52:54.91Z 1980-08-15T19:16:51.03Z 50881.05 -8.287 48.937 -0.89307 173.074 77.069 4.788 lambda I 1980-08-15T21:54:38.16Z 1980-08-15T19:18:34.27Z 50026.01 -8.277 5.936 -0.89307 172.823 77.268 4.431 delta I 1980-08-15T21:58:06.89Z 1980-08-15T19:22:02.97Z 48300.36 -8.257 71.725 -0.89307 172.288 77.641 3.709 gamma I 1980-08-15T21:59:29.17Z 1980-08-15T19:23:25.25Z 47621.16 -8.249 1.166 -0.89307 172.067 77.777 3.424 eta I 1980-08-15T22:00:23.11Z 1980-08-15T19:24:19.18Z 47176.23 -8.243 90.131 -0.89307 171.918 77.863 3.236 beta I 1980-08-15T22:03:27.40Z 1980-08-15T19:27:23.45Z 45657.75 -8.221 279.966 -0.89310 171.389 78.133 2.596 alpha I 1980-08-15T22:05:25.31Z 1980-08-15T19:29:21.34Z 44687.20 -8.207 337.854 -0.89314 171.032 78.287 2.186 four I 1980-08-15T22:09:50.59Z 1980-08-15T19:33:46.59Z 42530.31 -8.173 25.234 -0.89282 170.169 78.575 1.261 five I 1980-08-15T22:10:21.40Z 1980-08-15T19:34:17.40Z 42262.17 -8.167 250.187 -0.89316 170.063 78.603 1.153 six I 1980-08-15T22:11:16.98Z 1980-08-15T19:35:12.98Z 41818.86 -8.160 64.330 -0.89294 169.869 78.651 0.959 six E 1980-08-16T00:45:57.55Z 1980-08-15T22:09:52.52Z 41831.04 8.277 278.422 -0.89294 24.251 55.249 -32.436 five E 1980-08-16T00:46:49.60Z 1980-08-15T22:10:44.57Z 42254.24 8.284 103.902 -0.89316 24.073 55.062 -32.625 four E 1980-08-16T00:47:30.50Z 1980-08-15T22:11:25.47Z 42594.80 8.293 238.706 -0.89282 23.929 54.914 -32.774 alpha E 1980-08-16T00:51:51.05Z 1980-08-15T22:15:45.98Z 44752.16 8.334 189.645 -0.89314 23.077 53.976 -33.723 beta E 1980-08-16T00:53:41.75Z 1980-08-15T22:17:36.67Z 45674.48 8.350 131.073 -0.89310 22.737 53.577 -34.126 eta E 1980-08-16T00:56:41.14Z 1980-08-15T22:20:36.04Z 47176.15 8.376 300.200 -0.89307 22.212 52.930 -34.778 gamma E 1980-08-16T00:57:35.41Z 1980-08-15T22:21:30.30Z 47631.06 8.383 210.940 -0.89307 22.059 52.734 -34.976 delta E 1980-08-16T00:58:55.21Z 1980-08-15T22:22:50.09Z 48300.39 8.394 281.062 -0.89307 21.840 52.445 -35.266 lambda E 1980-08-16T01:02:20.46Z 1980-08-15T22:26:15.32Z 50026.01 8.420 214.222 -0.89307 21.304 51.702 -36.012 epsilon E 1980-08-16T01:04:44.54Z 1980-08-15T22:28:39.39Z 51240.26 8.436 256.629 -0.89307 20.948 51.180 -36.536 Event geometry at 1980-08-15T23:27:12.0000Z -------------------------------------- Ring opening angle B (deg): -63.26138 Position angle of pole P (deg): 88.10158 Observer-planet distance (km): 2807.621905 x 10^6 Light travel time (sec): 9365.218605