TimeFITS¶
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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])Return time representation from internal jd1 and jd2.
Attributes Documentation
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cache
¶ Return the cache associated with this instance.
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jd2_filled
¶
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mask
¶
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masked
¶
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name
= 'fits'¶
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scale
¶ Time scale
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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}'))¶
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value
¶ Convert times to strings, using signed 5 digit if necessary.
Methods Documentation
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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.
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mask_if_needed
(self, value)¶
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set_jds
(self, val1, val2)¶ Parse the time strings contained in val1 and set jd1, jd2
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str_kwargs
(self)¶ Generator that yields a dict of values corresponding to the calendar date and time for the internal JD values.
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to_value
(self, parent=None)¶ Return time representation from internal jd1 and jd2. This is the base method that ignores
parent
and requires that subclasses implement thevalue
property. Subclasses that requireparent
or have other optional args forto_value
should compute and return the value directly.