Neptune_2031-10-17T07_12_26.9500_IRTF.txt
 
Occultation predictions computed by rfrench@wellesley.edu Sun Jun 11 11:13:27 2023
 
target                  : Neptune
target radius (km)      :  24764.00
C/A epoch               : 2031-10-17T07:14:07.260
Event type              : PgtRgt
                        : Neptune 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          : 2551675048767534848
2Mass ID (if available) : 00520885+0349541
ICRS Star Coord at Epoch: 00h 52m 08.87093s +03:49:54.10176s
RUWE (>1.4 is poor)     :   1.06
K magnitude             : 14.714
G magnitude             : 16.306
RP magnitude            : 15.789
BP magnitude            : 16.653
DUPflag                 : 0
Distance (au)           : 28.866
f0 (km)                 :       0.000
g0 (km)                 :       0.000
skyplane vel. (km/s)    : -23.90
Sun-Target sep (deg)    :  170.07
Sun-Moon sep (deg)      :  158.74
B (ring opening deg)    :  -14.65
PA of pole (deg)        :  -46.49
Pole direction: RA (deg): 299.33374
               Dec (deg):  42.95036
C/A sky separation (")  :   0.564
C/A sky separation (km) :  11813.5
NAIF SPICE kernels      : RAJobs_U111+rgf16.spk
                          URKALLv1.spk
                          nep097.bsp
                          nep101.bsp
                          sat440l.bsp
                          de440.bsp
                          earth_720101_070426.bpc
                          earthstns_itrf93_040916.bsp
                          earth_200101_990628_predict.bpc
                          pck00010.tpc
                          pck.ura111.tpc.Neptune
                          naif0012.tls
                          IAU_NEPTUNE_for_RINGFIT.tpc.BECAREFUL
                          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
---------------------------------------------------------------------------------------------------
Adams         I 2031-10-17T06:39:55.016    44.94  -38.91   62933.00   -41.24
Galatea       I 2031-10-17T06:40:18.813    45.03  -39.00   61953.00   -41.12
Arago         I 2031-10-17T06:42:15.356    45.48  -39.46   57200.00   -40.42
Lassell       I 2031-10-17T06:43:05.054    45.67  -39.65   55200.00   -40.06
LeVerrier     I 2031-10-17T06:43:55.222    45.86  -39.85   53200.00   -39.66
Galle         I 2031-10-17T06:48:49.364    46.97  -41.00   42000.00   -36.06
 
Neptune       I 2031-10-17T06:59:08.467    49.30  -43.42   24763.85              -4.13     -4.27
Neptune       E 2031-10-17T07:29:04.711    55.92  -50.40   24746.99             -50.37    -51.32
 
Galle         E 2031-10-17T07:13:32.412 b  52.52  -46.78   42000.00    36.38
LeVerrier     E 2031-10-17T07:18:26.937 b  53.60  -47.93   53200.00    39.34
Lassell       E 2031-10-17T07:19:17.540 b  53.79  -48.12   55200.00    39.71
Arago         E 2031-10-17T07:20:07.682 b  53.97  -48.32   57200.00    40.06
Galatea       E 2031-10-17T07:22:05.202 b  54.40  -48.77   61953.00    40.81
Adams         E 2031-10-17T07:22:29.175 b  54.49  -48.87   62933.00    40.95