Can LIGO Detect Daylight Savings Time?
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866916952759336960 |
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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 |
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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 |