Crashes due to NaN with date "2011-01-01"

[petermao]

Traces to space-physics/geomagindices#5. Can this code be hardened against NaNs?

In [14]: m = msis.run("2011-01-01", (65,5,300), -49.5,69.5)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-14-4a12093822f8> in <module>
----> 1 m = msis.run("2011-01-01", (65,5,300), -49.5,69.5)

~/Library/Python/3.7/lib/python/site-packages/msise00/base.py in run(time, altkm, glat, glon, indices)
     62     # %% altitude 1-D
     63     if glat.size == 1 and glon.size == 1 and isinstance(time, (str, date, datetime, np.datetime64)):
---> 64         atmos = rungtd1d(time, altkm, glat.squeeze()[()], glon.squeeze()[()], indices)
     65     # %% lat/lon grid at 1 altitude
     66     else:

~/Library/Python/3.7/lib/python/site-packages/msise00/base.py in rungtd1d(time, altkm, glat, glon, indices)
    148     f107s = indices["f107s"]
    149     if not np.isfinite(f107s):
--> 150         raise ValueError("f107s is not finite.")
    151 
    152     f107s = indices["f107s"]

ValueError: f107s is not finite.