Merge pull request #10 from MWATelescope/backup_url

Added a backup url for the planets ephemeris download
MWATelescope · May 1, 2020 · 9e72efd · 9e72efd
2 parents 2140216 + 2d76408
commit 9e72efd
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/mwa_pb/skyfield_utils.py b/mwa_pb/skyfield_utils.py
@@ -72,7 +72,10 @@ def init_data():
         else:
             datadir = '/tmp'
         skyfield_loader = si.Loader(datadir, verbose=False, expire=True)
-        PLANETS = skyfield_loader('de421.bsp')
+        try:
+            PLANETS = skyfield_loader('de421.bsp')
+        except:
+            PLANETS = skyfield_loader('https://naif.jpl.nasa.gov/pub/naif/generic_kernels/spk/planets/a_old_versions/de421.bsp')
         TIMESCALE = skyfield_loader.timescale(builtin=True)   # TODO - set back to True when new version released
         S_MWAPOS = PLANETS['earth'] + MWA_TOPO                #        with replacement for USNO server.