Can LIGO Detect Daylight Savings Time?

Fuente: arXiv
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Main Author: Essick, Reed
Format: Preprint
Published: 2025
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author Essick, Reed
author_facet Essick, Reed
contents Yes, it can. Catalogs produced by networks of Gravitational-wave interferometers are subject to complicated selection effects, and the gold-standard remains direct measurements of the detection probability through large injection campaigns. I leverage public data products from the LIGO-Virgo-KAGRA Collaborations' 3rd and 4th observing runs to show that there are non-trivial temporal variations within the detection probability that are well-described by a weekly cycle. There are clear differences between weekends and weekdays, between day and night (at the sites), and even between daylight-savings and standard time. I discuss possible causes for this behavior and implications.
format Preprint
id arxiv_https___arxiv_org_abs_2509_11849
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Can LIGO Detect Daylight Savings Time?
Essick, Reed
General Relativity and Quantum Cosmology
High Energy Astrophysical Phenomena
Instrumentation and Methods for Astrophysics
Yes, it can. Catalogs produced by networks of Gravitational-wave interferometers are subject to complicated selection effects, and the gold-standard remains direct measurements of the detection probability through large injection campaigns. I leverage public data products from the LIGO-Virgo-KAGRA Collaborations' 3rd and 4th observing runs to show that there are non-trivial temporal variations within the detection probability that are well-described by a weekly cycle. There are clear differences between weekends and weekdays, between day and night (at the sites), and even between daylight-savings and standard time. I discuss possible causes for this behavior and implications.
title Can LIGO Detect Daylight Savings Time?
topic General Relativity and Quantum Cosmology
High Energy Astrophysical Phenomena
Instrumentation and Methods for Astrophysics
url https://arxiv.org/abs/2509.11849