TimeGPS

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 http://tycho.usno.navy.mil/gpstt.html

Attributes Summary

cache Return the cache associated with this instance.
epoch_format
epoch_scale
epoch_val
epoch_val2
jd2_filled
mask
masked
name
scale Time scale
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

cache

Return the cache associated with this instance.

epoch_format = 'iso'
epoch_scale = 'tai'
epoch_val = '1980-01-06 00:00:19'
epoch_val2 = None
jd2_filled
mask
masked
name = 'gps'
scale

Time scale

unit = 1.1574074074074073e-05
value

Methods Documentation

mask_if_needed(value)
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).

to_value(parent=None)

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.