u12_ctio_400cm_2200nm_predicted_ring_event_times.txt produced Mon Apr 12 17:56:42 2021 using rfrench@Achilles.local:/Volumes/PromisePegasus28TB_backup/dione_raid2/Research/uranus/PDART2014/programs/pro_occinfo2geom_plots_pds4_v7.pro Bundle ID: uranus_occ_u12_ctio_400cm 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: 1980-08-15T21:40:00.0100Z to 1980-08-16T01:20:00.0100Z 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: 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): 0.000000000 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 1980-08-15T21:52:54.99Z 1980-08-15T19:16:50.98Z 50881.81 -8.297 49.078 -0.89307 173.218 76.028 4.499 lambda I 1980-08-15T21:54:38.20Z 1980-08-15T19:18:34.18Z 50026.01 -8.288 6.081 -0.89307 172.969 76.213 4.147 delta I 1980-08-15T21:58:06.65Z 1980-08-15T19:22:02.60Z 48300.36 -8.268 71.878 -0.89307 172.440 76.558 3.434 gamma I 1980-08-15T21:59:28.82Z 1980-08-15T19:23:24.77Z 47621.16 -8.260 1.318 -0.89307 172.221 76.684 3.153 eta I 1980-08-15T22:00:22.69Z 1980-08-15T19:24:18.63Z 47176.23 -8.254 90.284 -0.89307 172.074 76.763 2.968 beta I 1980-08-15T22:03:26.72Z 1980-08-15T19:27:22.64Z 45657.70 -8.233 280.130 -0.89310 171.551 77.013 2.337 alpha I 1980-08-15T22:05:24.46Z 1980-08-15T19:29:20.36Z 44687.17 -8.219 338.018 -0.89314 171.198 77.155 1.932 four I 1980-08-15T22:09:49.32Z 1980-08-15T19:33:45.19Z 42530.37 -8.186 25.410 -0.89282 170.344 77.422 1.019 five I 1980-08-15T22:10:20.13Z 1980-08-15T19:34:16.00Z 42261.93 -8.179 250.358 -0.89316 170.240 77.448 0.913 six I 1980-08-15T22:11:15.58Z 1980-08-15T19:35:11.45Z 41818.98 -8.173 64.511 -0.89294 170.048 77.493 0.722 Atmosphere I 1980-08-15T22:37:20.62Z 77.288 -4.723 Atmosphere E 1980-08-16T00:16:53.49Z 61.177 -26.030 six E 1980-08-16T00:46:00.26Z 1980-08-15T22:09:55.10Z 41831.18 8.289 278.232 -0.89294 24.064 55.099 -32.313 five E 1980-08-16T00:46:52.20Z 1980-08-15T22:10:47.03Z 42253.99 8.296 103.715 -0.89316 23.888 54.915 -32.500 four E 1980-08-16T00:47:33.08Z 1980-08-15T22:11:27.91Z 42594.92 8.305 238.527 -0.89282 23.746 54.771 -32.647 alpha E 1980-08-16T00:51:53.26Z 1980-08-15T22:15:48.06Z 44752.17 8.345 189.471 -0.89314 22.903 53.850 -33.583 beta E 1980-08-16T00:53:43.80Z 1980-08-15T22:17:38.59Z 45674.44 8.361 130.901 -0.89310 22.567 53.458 -33.980 eta E 1980-08-16T00:56:42.97Z 1980-08-15T22:20:37.74Z 47176.15 8.386 300.042 -0.89307 22.047 52.821 -34.624 gamma E 1980-08-16T00:57:37.18Z 1980-08-15T22:21:31.94Z 47631.07 8.394 210.776 -0.89307 21.897 52.629 -34.819 delta E 1980-08-16T00:58:56.88Z 1980-08-15T22:22:51.63Z 48300.39 8.404 280.905 -0.89307 21.680 52.345 -35.105 lambda E 1980-08-16T01:02:21.89Z 1980-08-15T22:26:16.63Z 50026.01 8.429 214.067 -0.89307 21.149 51.615 -35.841 epsilon E 1980-08-16T01:04:45.94Z 1980-08-15T22:28:40.65Z 51241.30 8.445 256.478 -0.89307 20.797 51.101 -36.358 Event geometry at 1980-08-15T23:27:14.0000Z -------------------------------------- Ring opening angle B (deg): -63.26138 Position angle of pole P (deg): 88.10158 Observer-planet distance (km): 2807.648769 x 10^6 Light travel time (sec): 9365.308213