TimeGPS¶
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class
astropy.time.
TimeGPS
(val1, val2, scale, precision, in_subfmt, out_subfmt, from_jd=False)[source]¶ Bases:
astropy.time.TimeFromEpoch
GPS time: seconds from 1980-01-06 00:00:00 UTC For example, 630720013.0 is midnight on January 1, 2000.
Notes
This implementation is strictly a representation of the number of seconds (including leap seconds) since midnight UTC on 1980-01-06. GPS can also be considered as a time scale which is ahead of TAI by a fixed offset (to within about 100 nanoseconds).
For details, see https://www.usno.navy.mil/USNO/time/gps/usno-gps-time-transfer
Attributes Summary
cache
Return the cache associated with this instance. epoch_format
epoch_scale
epoch_val
epoch_val2
jd1
jd2
jd2_filled
mask
masked
name
scale
Time scale subfmts
unit
value
Methods Summary
mask_if_needed
(value)set_jds
(val1, val2)Initialize the internal jd1 and jd2 attributes given val1 and val2. to_value
([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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epoch_format
= 'iso'¶
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epoch_scale
= 'tai'¶
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epoch_val
= '1980-01-06 00:00:19'¶
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epoch_val2
= None¶
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jd1
¶
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jd2
¶
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jd2_filled
¶
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mask
¶
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masked
¶
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name
= 'gps'¶
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scale
¶ Time scale
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subfmts
= (('float', <class 'numpy.float64'>, None, <ufunc 'add'>), ('long', <class 'numpy.float128'>, <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>))¶
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unit
= 1.1574074074074073e-05¶
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value
¶
Methods Documentation
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mask_if_needed
(value)¶
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set_jds
(val1, val2)¶ 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).
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to_value
(parent=None, **kwargs)¶ Return time representation from internal jd1 and jd2. Subclasses that require
parent
or to adjust the jds should override this method.
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