# gw

Rows: 1. Files: gw.csv, gw.json (same rows).
Unit: per row, see the unit column.

Columns:
- value: measured value
- sigma: 1-sigma uncertainty, same unit
- source: publication (authors, journal, volume, page)
- year: year of publication
- field: field of measurement
- id: row id used on the Experiments page
- unit: unit of value and sigma
- quantity: what is measured
- grade: source grade (primary, secondary, recalled) and any published bound
- bound_low: lower end of a published bound, if the result is a bound
- bound_high: upper end of that bound
- recalled: yes: number taken from a secondary source, scored but not carried

Notes from the record:
- interval -3e-15 to +7e-16 entered as centre -1.15e-15 with half-width 1.85e-15 taken as 1 sigma (conservative: the bound is not Gaussian; it assumes 0 to 10 s emission delay)

Source of the data: the publications in the source column.

Licence: Values are numerical results quoted from the cited publications; the publications themselves remain under their publishers' copyright and licences, and the numbers are reproduced here for scholarly citation, each with its source. This compilation (the selection, the columns and the notes): licence to be set by the author; CC BY 4.0 proposed.

sha256 of gw.csv: c74e81b54a05450dc6dcdc80137a35256d00d61e341eda99e836e9cc3123e7ac
Record file last written: 2026-11-07 20:12:55 IST.