Uranus_2026-04-03T06_56_18.1800_IRTF.txt
 
Occultation predictions computed by rfrench@wellesley.edu Sun Jun 11 11:28:11 2023
 
target                  : Uranus
target radius (km)      :  25559.00
C/A epoch               : 2026-04-03T06:59:58.910
Event type              : XRgt
                        : No Uranus occs
                        : 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          : 63054213010969600
2Mass ID (if available) : 03451151+1939248
ICRS Star Coord at Epoch: 03h 45m 11.52118s +19:39:24.64811s
RUWE (>1.4 is poor)     :   1.04
K magnitude             : 13.806
G magnitude             : 17.088
RP magnitude            : 16.085
BP magnitude            : 18.143
DUPflag                 : 0
Distance (au)           : 20.164
f0 (km)                 :       0.000
g0 (km)                 :       0.000
skyplane vel. (km/s)    :  27.27
Sun-Target sep (deg)    :   45.33
Sun-Moon sep (deg)      :  149.05
B (ring opening deg)    :   69.47
PA of pole (deg)        :  -80.72
Pole direction: RA (deg): 257.31100
               Dec (deg): -15.17500
C/A sky separation (")  :   3.004
C/A sky separation (km) :  43926.3
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 2026-04-03T06:44:19.227    15.03  -30.22   50902.07   -14.29
lambda        I 2026-04-03T06:45:22.952    14.79  -30.46   50026.71   -13.33
delta         I 2026-04-03T06:47:42.251    14.27  -30.97   48300.35   -11.42
gamma         I 2026-04-03T06:48:43.601    14.03  -31.20   47627.12   -10.52
eta           I 2026-04-03T06:49:27.895    13.87  -31.36   47176.12    -9.84
beta          I 2026-04-03T06:52:25.645    13.20  -32.02   45679.86    -6.95
alpha         I 2026-04-03T06:55:16.206    12.55  -32.65   44750.67    -3.94
 
No planet occultations
 
alpha         E 2026-04-03T07:02:21.071    10.96  -34.20   44752.39     3.94
beta          E 2026-04-03T07:05:11.510    10.32  -34.83   45681.10     6.96
eta           E 2026-04-03T07:08:08.772     9.65  -35.47   47176.12     9.86
gamma         E 2026-04-03T07:08:53.318     9.48  -35.63   47630.46    10.54
delta         E 2026-04-03T07:09:54.253     9.26  -35.85   48300.35    11.44
lambda        E 2026-04-03T07:12:13.294     8.74  -36.36   50026.71    13.36
epsilon       E 2026-04-03T07:13:44.779     8.39  -36.69   51302.02    14.33