LIGO Detection 5-Day Rule
Most of the LIGO detections follow a simple 5-day rule for an earth tide event: When there is an earth tide event most of the associated LIGO detections are within a 5-day range from 2 days before to same day or to 2 days after. O3 increased the sensitivity so more detections resulted from an earth tide. The distribution pattern is different before and after April 2019.
This analysis is below.
Here are the distributions Format per line: Earth tide event _ LIGO # Detections _ # Within 5_ # Not-in 5 _ # Total
LIGO has its detections in 2 lists:
1) in Wikipedia since O1 began in 2015
events: PG-15-09-14 _ W1 _N0 _T1 or line = 1 within 5-day range, 0 not in range, 1 total
NM-15-10-12 _ W1 _N0 _T1 FM-15-12-25 _ W1 _N0 _T1 PH-17-01-04 _ W1 _N0 _T1 PG-17-04-15 _ W0 _N0 _T1 FM -17-06-09 _ W1 _N0 _T1 PG-17-08-02 _ W0 _N1 _T1 FM-17-08-07_ W1 _N0 _T1 PG-17-08-18 _ W2 _N1 _T3 NM-17-08-21 _ W1 _N0 _T1 NM-19-04-05 _ W0 _N1 _T1 PG-19-04-16 _ W0 _N1 _T1 FM-19-04-19_ W1 _N0 _T1 MJ-19-04-23_ W1 _N1 _T2 NM-19-05-04 _ W1 _N0 _T1 PG-19-05-13_ W2 _N1 _T3 FM-19-05-18 _ W2 _N2 _T4 NM-19-06-03 _ W1 _N0 _T1 NM-19-07-02 _ W2 _N2 _T4 FM-19-07-18 _ W1 _N0 _T1 NM-19-07-31 _ W0 _N2 _T2 FM-19-08-15 _ W1 _N0 _T1 NM-19-08-30 _ W3 _N1 _T4 FM-19-09-13 _ W1 _N2 _T3 NM-19-09-28 _ W2 _N2 _T4 FM-19-11-12 _ W2 _N2 _T4 PG-19-11-23 _ W3 _ N0 _T3 NM-19-11-26_ W1 _N0 _T1 FM-19-12-12_ W1 _N0 _T1 PG-19-12-18 _ W1 _ N0 _ T1
Earth tide events_ total _ 26
LIGO table in Wikipedia _ total _ 50 _ 26 within 2 days
2) in GraceDB since O3 began in April 2019
Grace DB lists all detections including those that passed or failed all the analysis checks to be in the Wikipedia list. The Wikipedia list includes the probabilities assigned to each inspiral event after its analysis.
GraceDB events
NM-19-04-05 _ W1 _N1 _T2 or line = 1 within 5-day range, 1 not in 5-day range, 2 total
PG-19-04-15 _ W0 _N1 _T1 MJ-19-04-19_ W1 _N0 _T1 MJ-19-04-23 _ W2 _N1 _T3 NM-19-05-04 _ W1 _N0 _T1 PG-19-05-13 _ W2 _N1 _T3 FM-19-05-18 _ W3 _N3 _T6 NM-19-06-03 _ W1 _N0 _T1 NM-19-07-02 _ W2 _N0 _T2 PG-19-07-05 _ W2 _N0 _T2 FM-19-07-16 _ W0 _N1 _T1 NM-19-07-31 _ W0 _N2 _T2 FM-19-08-15 _ W2 _N1 _T3 NM-19-08-30 _ W3 _N1 _T4 FM-19-09-13 _ W1 _N2 _T3 NM-19-09-28 _ W3 _N2 _T5 FM-19-11-12 _ W2 _N3 _T5 PG-19-11-23 _ W1 _N2 _T3 NM-19-11-26 _ W0 _N1 _T1 FM-19-12-12 _ W0 _N0 _T1 PG-19-12-18 _ W2 _ N0 _ T2
Earth tide events _ total _ 22
GraceDB list since O3 began April 2019 with LIGO list having earlier detections _ total _ 56 _ 31 within 2 days
=== another representation ===
The combined list with only the deviations:
NM-15-09-13 _ +1 NM-15-10-12 _ 0 FM-15-12-25 _ +1 PH-17-01-04 _ 0 FM -17-06-09 _ -1 NM-17-07-23 _ +6 FM-17-08-07_ +2 PG-17-08-18 _ -4, -0 NM-17-08-21 _ +2 NM-19-04-05 _ 0, +3 PG-19-04-16 _ -4 FM-19-04-19_ +2 MJ-19-04-23_ +2, +3 NM-19-05-04 _ -1 PG-19-05-13_ -3, -1, 0 FM-19-05-18 _ -1, 0, +1, +3, +3, +6 NM-19-06-03 _ -1 NM-19-07-02 _ -2, -1, +4, +5 FM-19-07-18 _ 0, +1, +2 NM-19-07-31 _ -4, -3 FM-19-08-15 _ -1 NM-19-08-30 _ -2, -2, -1, +2 FM-19-09-13 _ -3, -3, +2 NM-19-09-28 _ -5, -4, 0, +2, +2 FM-19-11-12 _ -7, -3, -2, -2, +5 PG-1911-23 _ -3, -3, +1 NM-19-11-26 _ +3 FM-19-12-12 _ -8, -7, 0, +1, +1, +1, +3 PG-19-12-18 _ -2, +2
The LIGO detections are claimed to be detectable from almost anywhere in the universe so they should be in a random distribution. They are not random. Hit back to go to previous page in history.
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