Neptune_2027-10-31T06_38_33.3900_MCD.txt
 
Occultation predictions computed by rfrench@wellesley.edu Sun Jun 11 11:13:06 2023
 
target                  : Neptune
target radius (km)      :  24764.00
C/A epoch               : 2027-10-31T06:35:19.080
Event type              : PgtRgt
                        : Neptune occs: geocentric, topocentric
                        : Ring occs: geocentric, topocentric
Observer code           : MCD
Location                : McDonald Obs. 2.7m
Latitude (deg)          :  30.67158
E. Longitude (deg)      : 255.97844
Altitude (km)           :   2.075
Gaia source ID          : 2545527339955749760
2Mass ID (if available) : 00165920+0014561
ICRS Star Coord at Epoch: 00h 16m 59.20652s +00:14:55.75760s
RUWE (>1.4 is poor)     :   1.06
K magnitude             : 13.941
G magnitude             : 15.529
RP magnitude            : 14.971
BP magnitude            : 15.921
DUPflag                 : 0
Distance (au)           : 29.034
f0 (km)                 :       0.000
g0 (km)                 :       0.000
skyplane vel. (km/s)    : -19.39
Sun-Target sep (deg)    :  146.74
Sun-Moon sep (deg)      :  125.30
B (ring opening deg)    :  -18.38
PA of pole (deg)        :  -44.22
Pole direction: RA (deg): 299.33374
               Dec (deg):  42.95036
C/A sky separation (")  :   0.306
C/A sky separation (km) :   6447.8
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 2027-10-31T05:53:31.723    54.87  -70.40   62933.00   -29.21
Galatea       I 2027-10-31T05:54:05.286    54.80  -70.47   61953.00   -29.19
Arago         I 2027-10-31T05:56:48.487    54.46  -70.80   57200.00   -29.05
Lassell       I 2027-10-31T05:57:57.400    54.32  -70.94   55200.00   -28.99
LeVerrier     I 2027-10-31T05:59:06.477    54.17  -71.07   53200.00   -28.92
Galle         I 2027-10-31T06:05:37.557    53.30  -71.77   42000.00   -28.29
 
Neptune       I 2027-10-31T06:15:06.761    51.97  -72.60   24763.36               6.74      6.97
Neptune       E 2027-10-31T06:55:31.862    45.45  -73.16   24748.67             -35.08    -36.01
 
Galle         E 2027-10-31T06:49:54.255 b  46.42  -73.39   42000.00    27.99
LeVerrier     E 2027-10-31T06:56:28.630    45.28  -73.11   53200.00    28.71
Lassell       E 2027-10-31T06:57:38.189    45.08  -73.04   55200.00    28.79
Arago         E 2027-10-31T06:58:47.568    44.88  -72.98   57200.00    28.86
Galatea       E 2027-10-31T07:01:31.843    44.39  -72.81   61953.00    29.00
Adams         E 2027-10-31T07:02:05.624    44.29  -72.77   62933.00    29.02