ValueError: cannot convert float NaN to integer

[ctwillson]

I want to use keplerian2ecef to get satellite positions,however,it shows error" T0 = [datetime(1980, 1, 6) + timedelta(weeks=week) for week in weeks].
ValueError: cannot convert float NaN to intege"

import georinex as gr
import sys
import georinex.plots as grp
from matplotlib.pyplot import show
from georinex.keplerian import keplerian2ecef
try:
    import pymap3d as pm
except ImportError:
    pm = None
print(sys.version)
nav = gr.load("./data/BRDC00WRD_R_20221260000_01D_GN.rnx")

# grp.timeseries(nav)
# show()
svs = nav.sv.values
for sv in svs:
    if sv[0] == "S":
        lat, lon, alt = pm.ecef2geodetic(
            nav.sel(sv=sv)["X"].dropna(dim="time", how="all"),
            nav.sel(sv=sv)["Y"].dropna(dim="time", how="all"),
            nav.sel(sv=sv)["Z"].dropna(dim="time", how="all"),
        )

        if ((alt < 35.7e6) | (alt > 35.9e6)).any():
            logging.warning("unrealistic geostationary satellite altitudes")

        if ((lat < -1) | (lat > 1)).any():
            logging.warning("unrealistic geostationary satellite latitudes")

    elif sv[0] == "R":
        lat, lon, alt = pm.ecef2geodetic(
            nav.sel(sv=sv)["X"].dropna(dim="time", how="all"),
            nav.sel(sv=sv)["Y"].dropna(dim="time", how="all"),
            nav.sel(sv=sv)["Z"].dropna(dim="time", how="all"),
        )

        if ((alt < 19.0e6) | (alt > 19.4e6)).any():
            logging.warning("unrealistic GLONASS satellite altitudes")

        if ((lat < -67) | (lat > 67)).any():
            logging.warning("GLONASS inclination ~ 65 degrees")

    elif sv[0] == "G":
        ecef = keplerian2ecef(nav.sel(sv=sv))
        lat, lon, alt = pm.ecef2geodetic(*ecef)

        if ((alt < 19.4e6) | (alt > 21.0e6)).any():
            logging.warning("unrealistic GPS satellite altitudes")

        if ((lat < -57) | (lat > 57)).any():
            logging.warning("GPS inclination ~ 55 degrees")
    elif sv[0] == "E":
        ecef = keplerian2ecef(nav.sel(sv=sv))
        lat, lon, alt = pm.ecef2geodetic(*ecef)

        if ((alt < 23e6) | (alt > 24e6)).any():
            logging.warning("unrealistic Galileo satellite altitudes")

        if ((lat < -57) | (lat > 57)).any():
            logging.warning("Galileo inclination ~ 56 degrees")

    else:
        continue

Ephemeris like this

     3.05           N: GNSS NAV DATA    G: GPS              RINEX VERSION / TYPE
BNC 2.13.0          BKG Frankfurt       20220507 001902 UTC PGM / RUN BY / DATE
Concatenated RINEX files (9)                                COMMENT
                                                            END OF HEADER
G07 2022 05 06 00 00 00 3.217239864170e-04 5.684341886080e-13 0.000000000000e+00
     8.000000000000e+00 1.187500000000e+00 4.606620455660e-09-3.122333920780e+00
    -6.519258022310e-08 1.602555287540e-02 7.821246981620e-06 5.153665773390e+03
     4.320000000000e+05 2.421438694000e-08-1.557631989280e-01-2.104789018630e-07
     9.511318673290e-01 2.214687500000e+02-2.271997647470e+00-7.715678531840e-09
    -3.250135381180e-10 1.000000000000e+00 2.208000000000e+03 0.000000000000e+00
     2.000000000000e+00 0.000000000000e+00-1.117587089540e-08 8.000000000000e+00
     4.248180000000e+05 4.000000000000e+00                                      
G05 2022 05 06 00 00 00-8.079828694460e-05-1.364242052660e-12 0.000000000000e+00
     1.570000000000e+02-7.093750000000e+01 4.501258924070e-09 2.081511701720e-01
    -3.453344106670e-06 5.958021502010e-03 8.767470717430e-06 5.153718662260e+03
     4.320000000000e+05-2.048909664150e-08-2.297087023150e+00 2.048909664150e-08
     9.605837356880e-01 2.080625000000e+02 1.015547250280e+00-8.036049019410e-09
     1.235765760320e-10 1.000000000000e+00 2.208000000000e+03 0.000000000000e+00
     2.000000000000e+00 0.000000000000e+00-1.117587089540e-08 1.570000000000e+02
     4.295460000000e+05 4.000000000000e+00                                      
G06 2022 05 06 00 00 00 2.923775464300e-04 1.432454155290e-11 0.000000000000e+00
     7.600000000000e+01-7.490625000000e+01 4.070883854370e-09-2.213910507260e+00
    -3.771856427190e-06 2.603406319390e-03 4.682689905170e-06 5.153719142910e+03
     4.320000000000e+05-4.470348358150e-08 2.985543085520e+00 2.048909664150e-08
     9.872213746240e-01 3.044687500000e+02-8.647091098970e-01-7.836397846000e-09
    -4.464471677450e-11 1.000000000000e+00 2.208000000000e+03 0.000000000000e+00
     2.000000000000e+00 0.000000000000e+00 3.725290298460e-09 7.600000000000e+01
     4.248180000000e+05 4.000000000000e+00