Merge pull request #826 from dstansby/cassini-v2

Cassini v2

Author: dstansby

CHANGES.rst

@@ -45,6 +45,9 @@ Backwards Incompatible Changes
 - The `heliopy.coordinates` module has been removed completely. This only ever
   contained two coordinate frames and a single transformation, both of which are
   implemented in :mod:`sunpy.coordinates` now. (`#820 <https://github.com/heliopython/heliopy/pull/820>`__)
+- :mod:`heliopy.data.cassini` data download methods have been updated to use the newly released V2
+  Cassini MAG data. You may need to delete old data to be able to download the
+  newer data.
 
 
 Bug Fixes

heliopy/data/psp.py

@@ -48,6 +48,9 @@ def fname(self, interval):
 
 
 def sweap_spc_l3(starttime, endtime):
+    """
+    SWEAP SPC proton and alpha particle moments and fits.
+    """
     dl = _SWEAPL3Downloader()
     return dl.load(starttime, endtime)
 
@@ -70,5 +73,8 @@ def fname(self, interval):
 
 
 def fields_mag_rtn_1min(starttime, endtime):
+    """
+    1 minute averaged magnetic field data.
+    """
     dl = _FIELDSmag_RTN_1min_Downloader()
     return dl.load(starttime, endtime)