Uranus_2030-02-21T04_16_14.7100_PMO.txt Occultation predictions computed by rfrench@wellesley.edu Sun Jun 11 11:19:47 2023 target : Uranus target radius (km) : 25559.00 C/A epoch : 2030-02-21T13:18:48.650 Event type : XRgt : No Uranus occs : 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 : 3413241369472480128 2Mass ID (if available) : 04505398+2231506 ICRS Star Coord at Epoch: 04h 50m 53.98374s +22:31:50.50835s RUWE (>1.4 is poor) : 1.02 K magnitude : 13.826 G magnitude : 15.760 RP magnitude : 15.108 BP magnitude : 16.231 DUPflag : 0 Distance (au) : 18.988 f0 (km) : 0.000 g0 (km) : 0.000 skyplane vel. (km/s) : 0.17 Sun-Target sep (deg) : 101.93 Sun-Moon sep (deg) : 115.97 B (ring opening deg) : 81.46 PA of pole (deg) : -31.32 Pole direction: RA (deg): 257.31100 Dec (deg): -15.17500 C/A sky separation (") : 3.053 C/A sky separation (km) : 42047.4 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 2030-02-20T07:56:22.112 49.25 22.63x 51313.95 -0.45 lambda I 2030-02-20T08:45:04.434 59.56 13.34x 50026.71 -0.44 delta I 2030-02-20T09:53:45.143 73.37 -0.56x 48300.35 -0.40 gamma I 2030-02-20T10:22:45.122 78.14 -6.61 47628.10 -0.37 eta I 2030-02-20T10:43:25.840 80.28 -10.96 47176.12 -0.35 beta I 2030-02-20T12:03:53.513 72.21 -28.00 45680.54 -0.26 alpha I 2030-02-20T13:21:27.086 56.39 -44.14 44695.92 -0.16 4 I 2030-02-21T12:47:56.598 62.59 -37.08 42562.73 -0.04 No planet occultations 4 E 2030-02-21T13:49:13.445 49.66 -49.47 42562.53 0.04 alpha E 2030-02-21T17:10:27.431 7.79 -65.31 44705.15 0.32 beta E 2030-02-21T17:56:30.955 -1.11x -58.71 45678.17 0.38 eta E 2030-02-21T18:55:31.168 -11.77x -47.81 47176.12 0.46 gamma E 2030-02-21T19:11:32.572 -14.47x -44.62 47629.37 0.48 delta E 2030-02-21T19:34:07.912 -18.11x -40.02 48300.35 0.51 lambda E 2030-02-21T20:27:34.412 -25.73x -28.84 50026.71 0.57 epsilon E 2030-02-21T21:01:28.208 -29.64x -21.66 51212.34 0.60