curryer.spicetime.native¶

Native (fast) time conversions.

@author: Brandon Stone

Attributes¶

`ugps2datetime`(times[, ceil_leapseconds])	Convert GPS microseconds to datetime64[us].
`datetime2ugps`(times)	Convert datetime64[us] to GPS microseconds.
`ugps_to_gps_fraction`(times)	Convert uGPS to GPS fractional days.
`gps_fraction_to_ugps`(times)	Convert GPS fractional days to uGPS.
`gps_fraction_to_epoch_fraction`(times, to_epoch)	Convert GPS fractional days to a different epoch.
`epoch_fraction_to_gps_fraction`(times, from_epoch)	Convert epoch fractional days to the GPS epoch.

curryer.spicetime.native.ugps2datetime(times, ceil_leapseconds=True)¶

Convert GPS microseconds to datetime64[us].

Fast conversion; very convenient for plotting.

Parameters:

times (int or list[int] or numpy.ndarray or pandas.Series) – One or more uGPS times to convert.
ceil_leapseconds (bool, optional) – Ceil times within a leapsecond. Datetime64 does not support times within leapseconds. Default=True, otherwise throws a ValueError if encountered.

Returns:

Converted times - output is a scalar if the input was, otherwise it’s an array.

Return type:

numpy.datetime64 or numpy.ndarray

curryer.spicetime.native.datetime2ugps(times)¶

Convert datetime64[us] to GPS microseconds.

Parameters:: times (numpy.datetime64 or numpy.ndarray) – Scalar or array of datetime64 values with microsecond precision.
Returns:: Converted uGPS times - output is a scalar if the input was, otherwise it’s an array.
Return type:: int or numpy.ndarray

curryer.spicetime.native.ugps_to_gps_fraction(times)¶: Convert uGPS to GPS fractional days.

curryer.spicetime.native.gps_fraction_to_ugps(times)¶: Convert GPS fractional days to uGPS.

curryer.spicetime.native.gps_fraction_to_epoch_fraction(times, to_epoch)¶: Convert GPS fractional days to a different epoch.

curryer.spicetime.native.epoch_fraction_to_gps_fraction(times, from_epoch)¶: Convert epoch fractional days to the GPS epoch.