Merge pull request #3849 from dstansby/time-warn

Improve warning when date-obs keyword not present
sunpy · Feb 25, 2020 · 89024fd · 89024fd
2 parents c4c8629 + bc42bc6
commit 89024fd
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/sunpy/map/mapbase.py b/sunpy/map/mapbase.py
@@ -452,7 +452,9 @@ def date(self):
         time = self.meta.get('date-obs', None)
         if time is None:
             if self._default_time is None:
-                warnings.warn("Missing metadata for observation time: setting observation time to current time.",
+                warnings.warn("Missing metadata for observation time, "
+                              "setting observation time to current time. "
+                              "Set the 'DATE-OBS' FITS keyword to prevent this warning.",
                               SunpyUserWarning)
                 self._default_time = parse_time('now')
             time = self._default_time