Uranus_2031-01-21T07_44_27.8400_IRTF.txt Occultation predictions computed by rfrench@wellesley.edu Sun Jun 11 11:28:35 2023 target : Uranus target radius (km) : 25559.00 C/A epoch : 2031-01-21T07:44:12.440 Event type : PgtRgt : Uranus occs: geocentric, topocentric : Ring occs: geocentric, topocentric Observer code : IRTF Location : Mauna Kea/IRTF Latitude (deg) : 19.82622 E. Longitude (deg) : 204.52800 Altitude (km) : 4.168 Gaia source ID : 3415723757491506688 2Mass ID (if available) : 05114691+2304234 ICRS Star Coord at Epoch: 05h 11m 46.91636s +23:04:23.50038s RUWE (>1.4 is poor) : 1.09 K magnitude : 13.313 G magnitude : 16.219 RP magnitude : 15.351 BP magnitude : 16.993 DUPflag : 0 Distance (au) : 18.402 f0 (km) : 0.000 g0 (km) : 0.000 skyplane vel. (km/s) : -15.92 Sun-Target sep (deg) : 138.30 Sun-Moon sep (deg) : 164.46 B (ring opening deg) : 82.08 PA of pole (deg) : 4.45 Pole direction: RA (deg): 257.31100 Dec (deg): -15.17500 C/A sky separation (") : 0.153 C/A sky separation (km) : 2046.0 NAIF SPICE kernels : RAJobs_U111+rgf15.spk URKALLv1.spk ura111.bsp IAU_URANUS_for_RINGFIT.tpc vgr2.ura111.bsp ura161.bsp vgr2.ura161.bsp peph.ura160.bsp earthstns_itrf93_040916.bsp earth_720101_070426.bpc earth_200101_990628_predict.bpc pg3f0000r.bsp pg490000r.bsp naif0012.tls earth_flat_IAU.spk b: ring blocked by planet x: target alt < 5.0 deg or sun > -5.0 deg Ring I/E UTC b? alt alt-sun radius r-dot lat-geo lat-geodetic --------------------------------------------------------------------------------------------------- epsilon I 2031-01-21T06:52:29.323 79.82 -38.38 50841.46 -16.35 lambda I 2031-01-21T06:53:19.156 80.00 -38.57 50026.71 -16.35 delta I 2031-01-21T06:55:04.753 80.38 -38.98 48300.35 -16.35 gamma I 2031-01-21T06:55:46.237 80.53 -39.14 47622.18 -16.35 eta I 2031-01-21T06:56:13.524 80.63 -39.24 47176.12 -16.35 beta I 2031-01-21T06:57:45.283 80.96 -39.60 45676.14 -16.35 alpha I 2031-01-21T06:58:42.561 81.17 -39.82 44739.96 -16.34 4 I 2031-01-21T07:00:53.692 81.64 -40.32 42596.80 -16.34 5 I 2031-01-21T07:01:10.930 81.70 -40.39 42314.71 -16.34 6 I 2031-01-21T07:01:38.281 81.80 -40.50 41867.60 -16.34 Uranus I 2031-01-21T07:18:15.694 85.06 -44.35 25555.67 -0.59 -0.62 Uranus E 2031-01-21T08:10:08.084 80.83 -56.45 25526.42 1.85 1.94 6 E 2031-01-21T08:26:44.185 77.15 -60.33 41810.08 16.32 5 E 2031-01-21T08:27:05.308 77.07 -60.41 42154.83 16.32 4 E 2031-01-21T08:27:28.978 76.98 -60.51 42541.97 16.32 alpha E 2031-01-21T08:29:40.894 76.49 -61.02 44694.62 16.32 beta E 2031-01-21T08:30:39.284 76.27 -61.25 45647.47 16.32 eta E 2031-01-21T08:32:12.944 75.92 -61.61 47176.12 16.32 gamma E 2031-01-21T08:32:40.756 75.81 -61.72 47630.03 16.32 delta E 2031-01-21T08:33:21.827 75.66 -61.88 48300.35 16.32 lambda E 2031-01-21T08:35:07.602 75.26 -62.30 50026.71 16.32 epsilon E 2031-01-21T08:36:33.620 74.93 -62.63 51430.63 16.32