Uranus_2031-02-21T13_09_40.7000_PMO.txt Occultation predictions computed by rfrench@wellesley.edu Sun Jun 11 11:19:56 2023 target : Uranus target radius (km) : 25559.00 C/A epoch : 2031-02-21T12:46:09.530 Event type : PtRgt : Uranus occs: topocentric, not geoecetric : Ring occs: geocentric, topocentric Observer code : PMO Location : Purple Mtn Obs. Nanking Latitude (deg) : 32.06667 E. Longitude (deg) : 118.82089 Altitude (km) : 0.364 Gaia source ID : 3415408747410005632 2Mass ID (if available) : 05093215+2301564 ICRS Star Coord at Epoch: 05h 09m 32.14297s +23:01:56.30531s RUWE (>1.4 is poor) : 0.99 K magnitude : 14.674 G magnitude : 18.469 RP magnitude : 17.314 BP magnitude : 19.955 DUPflag : 0 Distance (au) : 18.843 f0 (km) : 0.000 g0 (km) : 0.000 skyplane vel. (km/s) : -1.96 Sun-Target sep (deg) : 106.14 Sun-Moon sep (deg) : 108.24 B (ring opening deg) : 82.14 PA of pole (deg) : 0.51 Pole direction: RA (deg): 257.31100 Dec (deg): -15.17500 C/A sky separation (") : 2.257 C/A sky separation (km) : 30847.3 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 2031-02-21T08:12:07.807 49.46 19.85x 50865.28 -1.89 lambda I 2031-02-21T08:19:31.897 51.03 18.45x 50026.71 -1.88 delta I 2031-02-21T08:34:57.463 54.31 15.47x 48300.35 -1.85 gamma I 2031-02-21T08:41:05.399 55.61 14.27x 47623.14 -1.83 eta I 2031-02-21T08:45:09.990 56.48 13.47x 47176.12 -1.82 beta I 2031-02-21T08:59:05.120 59.42 10.71x 45670.33 -1.78 alpha I 2031-02-21T09:07:45.897 61.24 8.97x 44749.03 -1.75 4 I 2031-02-21T09:28:32.360 65.56 4.76x 42613.70 -1.67 5 I 2031-02-21T09:31:34.391 66.18 4.14x 42304.18 -1.66 6 I 2031-02-21T09:36:16.991 67.14 3.17x 41841.91 -1.64 No planet occultations 6 E 2031-02-21T16:12:34.204 23.74 -68.53 41879.66 1.38 5 E 2031-02-21T16:17:23.490 22.74 -68.57 42285.63 1.39 4 E 2031-02-21T16:20:42.142 22.06 -68.56 42561.41 1.40 alpha E 2031-02-21T16:45:56.168 16.89 -67.63 44705.06 1.43 beta E 2031-02-21T16:57:14.989 14.59 -66.74 45679.05 1.44 eta E 2031-02-21T17:14:30.065 11.13 -64.93 47176.12 1.45 gamma E 2031-02-21T17:19:37.337 10.11 -64.29 47622.19 1.45 delta E 2031-02-21T17:27:23.875 8.57 -63.26 48300.35 1.45 lambda E 2031-02-21T17:47:10.298 4.70x -60.31 50026.71 1.45 epsilon E 2031-02-21T17:57:16.029 2.75x -58.65 50907.35 1.45