Add missing column definition to jplhorizons.
'Date__(UT)__HR:MN' and 'Date__(UT)__HR:MN:SC.fff' were present, but
'Date__(UT)__HR:MN:SS' also needed.
@@ -39,6 +39,7 @@ class Conf(_config.ConfigNamespace):
# query modes
eph_columns = {'targetname': ('targetname', '---'),
'Date__(UT)__HR:MN': ('datetime_str', '---'),
+ 'Date__(UT)__HR:MN:SS': ('datetime_str', '---'),
'Date__(UT)__HR:MN:SC.fff': ('datetime_str', '---'),
'Date_________JDUT': ('datetime_jd', 'd'),
'H': ('H', 'mag'),
