hirs_orbit_map fails for full range

[gerritholl]

hirs_orbit_map fails unless the flag --range instructs it to plot less than the full orbit. The problem is that for an orbit with 900 scanlines, it tries to use line 900 to get the end time — this results in IndexError. A workaround is to pass --range 0 99 when one wants to plot most of the orbit, but the real fix is to adapt

FCDR_HIRS/FCDR_HIRS/analysis/map_single_orbit.py

Line 201 in 9b7bd63

end=self.ds.isel(y=self.end)["time"].values.astype("datetime64[ms]").item()) +