Event Candidate I/O (ligo.skymap.io.events)

This module provides a high-level interface for reading event records from search pipelines.

Openers

ligo.skymap.io.events.open(f, *args, **kwargs)

Read events from either HDF or LIGO-LW files. The format is determined using the POSIX file command, which determines the file by looking for ‘magic’ byte strings (hence the name of this module).

Returns

sourceEventSource

ligo.skymap.io.events.gracedb.open(graceids, client=None)

Read events from GraceDB.

Parameters

graceidslist

List of GraceDB ID strings.

clientligo.gracedb.rest.GraceDb, optional

Client object

Abstract Base Classes

class ligo.skymap.io.events.EventSource

Bases: collections.abc.Mapping

Abstraction of a source of coincident events.

This is a mapping from event IDs (which may be any hashable type, but are generally integers or strings) to instances of Event.

class ligo.skymap.io.events.Event

Abstraction of a coincident trigger.

Attributes

singleslist, tuple

Sequence of SingleEvent

template_argsdict

Dictionary of template parameters

class ligo.skymap.io.events.SingleEvent

Abstraction of a single-detector trigger.

Attributes

detectorstr

Instrument name (e.g. ‘H1’)

snrfloat

Signal to noise ratio

phasefloat

Phase on arrival

timefloat

GPS time on arrival

zerolag_timefloat

GPS time on arrival in zero-lag data, without time slides applied

psdREAL8FrequencySeries

Power spectral density

snr_seriesCOMPLEX8TimeSeries

SNR time series