TimeFromEpoch

class astropy.time.TimeFromEpoch(val1, val2, scale, precision, in_subfmt, out_subfmt, from_jd=False)[source]

Bases: astropy.time.TimeFormat

Base class for times that represent the interval from a particular epoch as a floating point multiple of a unit time interval (e.g. seconds or days).

Attributes Summary

cache Return the cache associated with this instance.
jd2_filled
mask
masked
scale Time scale
value

Methods Summary

mask_if_needed(self, value)
set_jds(self, val1, val2) Initialize the internal jd1 and jd2 attributes given val1 and val2.
to_value(self[, parent]) Return time representation from internal jd1 and jd2.

Attributes Documentation

cache

Return the cache associated with this instance.

jd2_filled
mask
masked
scale

Time scale

value

Methods Documentation

mask_if_needed(self, value)
set_jds(self, val1, val2)[source]

Initialize the internal jd1 and jd2 attributes given val1 and val2. For an TimeFromEpoch subclass like TimeUnix these will be floats giving the effective seconds since an epoch time (e.g. 1970-01-01 00:00:00).

to_value(self, parent=None)[source]

Return time representation from internal jd1 and jd2. This is the base method that ignores parent and requires that subclasses implement the value property. Subclasses that require parent or have other optional args for to_value should compute and return the value directly.