TimeMJD#

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

Bases: TimeNumeric

Modified Julian Date time format.

This represents the number of days since midnight on November 17, 1858. For example, 51544.0 in MJD is midnight on January 1, 2000.

Attributes Summary

cache

Return the cache associated with this instance.

in_subfmt

jd1

jd2

jd2_filled

mask

masked

name

out_subfmt

precision

scale

Time scale.

subfmts

value

Return time representation from internal jd1 and jd2.

Methods Summary

mask_if_needed(value)

set_jds(val1, val2)

Set internal jd1 and jd2 from val1 and val2.

to_value(**kwargs)

Return time representation from internal jd1 and jd2.

Attributes Documentation

cache#

Return the cache associated with this instance.

in_subfmt#
jd1#
jd2#
jd2_filled#
mask#
masked#
name = 'mjd'#
out_subfmt#
precision#
scale#

Time scale.

subfmts = (('float', <class 'numpy.float64'>, None, <ufunc 'add'>), ('long', <class 'numpy.longdouble'>, <function longdouble_to_twoval>, <function twoval_to_longdouble>), ('decimal', <class 'numpy.object_'>, <numpy.vectorize object>, <numpy.vectorize object>), ('str', <class 'numpy.str_'>, <numpy.vectorize object>, <numpy.vectorize object>), ('bytes', <class 'numpy.bytes_'>, <numpy.vectorize object>, <numpy.vectorize object>))#
value#

Methods Documentation

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

Set internal jd1 and jd2 from val1 and val2. Must be provided by derived classes.

to_value(**kwargs)[source]#

Return time representation from internal jd1 and jd2. Subclasses that require parent or to adjust the jds should override this method.