TimeFITS¶
-
class
astropy.time.
TimeFITS
(val1, val2, scale, precision, in_subfmt, out_subfmt, from_jd=False)[source]¶ Bases:
astropy.time.TimeString
FITS format: “[±Y]YYYY-MM-DD[THH:MM:SS[.sss]]”.
ISOT but can give signed five-digit year (mostly for negative years);
The allowed subformats are:
‘date_hms’: date + hours, mins, secs (and optional fractional secs)
‘date’: date
‘longdate_hms’: as ‘date_hms’, but with signed 5-digit year
‘longdate’: as ‘date’, but with signed 5-digit year
See Rots et al., 2015, A&A 574:A36 (arXiv:1409.7583).
Attributes Summary
Return the cache associated with this instance.
Time scale
Convert times to strings, using signed 5 digit if necessary.
Methods Summary
format_string
(self, str_fmt, **kwargs)Write time to a string using a given format.
mask_if_needed
(self, value)parse_string
(self, timestr, subfmts)Read time and deprecated scale if present
set_jds
(self, val1, val2)Parse the time strings contained in val1 and set jd1, jd2
str_kwargs
(self)Generator that yields a dict of values corresponding to the calendar date and time for the internal JD values.
to_value
(self[, parent, out_subfmt])Return time representation from internal jd1 and jd2 in specified
out_subfmt
.Attributes Documentation
-
cache
¶ Return the cache associated with this instance.
-
in_subfmt
¶
-
jd1
¶
-
jd2
¶
-
jd2_filled
¶
-
mask
¶
-
masked
¶
-
name
= 'fits'¶
-
out_subfmt
¶
-
scale
¶ Time scale
-
subfmts
= (('date_hms', re.compile('(?P<year>\\d{4})-(?P<mon>\\d\\d)-(?P<mday>\\d\\d)T(?P<hour>\\d\\d):(?P<min>\\d\\d):(?P<sec>\\d\\d(\\.\\d*)?)(\\((?P<scale>\\w+)(\\((?P<realization>\\w+)\\))?\\))?$'), '{year:04d}-{mon:02d}-{day:02d}T{hour:02d}:{min:02d}:{sec:02d}'), ('date', re.compile('(?P<year>\\d{4})-(?P<mon>\\d\\d)-(?P<mday>\\d\\d)(\\((?P<scale>\\w+)(\\((?P<realization>\\w+)\\))?\\))?$'), '{year:04d}-{mon:02d}-{day:02d}'), ('longdate_hms', re.compile('(?P<year>[+-]\\d{5})-(?P<mon>\\d\\d)-(?P<mday>\\d\\d)T(?P<hour>\\d\\d):(?P<min>\\d\\d):(?P<sec>\\d\\d(\\.\\d*)?)(\\((?P<scale>\\w+)(\\((?P<realization>\\w+)\\))?\\))?$'), '{year:+06d}-{mon:02d}-{day:02d}T{hour:02d}:{min:02d}:{sec:02d}'), ('longdate', re.compile('(?P<year>[+-]\\d{5})-(?P<mon>\\d\\d)-(?P<mday>\\d\\d)(\\((?P<scale>\\w+)(\\((?P<realization>\\w+)\\))?\\))?$'), '{year:+06d}-{mon:02d}-{day:02d}'))¶
-
value
¶ Convert times to strings, using signed 5 digit if necessary.
Methods Documentation
-
format_string
(self, str_fmt, **kwargs)¶ Write time to a string using a given format.
By default, just interprets str_fmt as a format string, but subclasses can add to this.
-
mask_if_needed
(self, value)¶
-
set_jds
(self, val1, val2)¶ Parse the time strings contained in val1 and set jd1, jd2
-
str_kwargs
(self)¶ Generator that yields a dict of values corresponding to the calendar date and time for the internal JD values.
-
to_value
(self, parent=None, out_subfmt=None)¶ Return time representation from internal jd1 and jd2 in specified
out_subfmt
.This is the base method that ignores
parent
and uses thevalue
property to compute the output. This is done by temporarily settingself.out_subfmt
and callingself.value
. This is required for legacy Format subclasses prior to astropy 4.0 New code should instead implement the value functionality into_value()
and then make thevalue
property be a simple call toself.to_value()
.- Parameters
- parentobj
Parent
Time
object associated with thisTimeFormat
object- out_subfmtstr or
None
Output subformt (use existing self.out_subfmt if
None
)
- Returns
- valuenumpy.array, numpy.ma.array
Array or masked array of formatted time representation values