This page has been prepared by the LIGO Scientific Collaboration (LSC) and the Virgo Collaboration.
The event occurred at GPS time 1186741861.53 == August 14 2017, 10:30:43.53 UTC.
The event was detected in data from the LIGO Hanford (H1), LIGO Livingston (L1) and Virgo (V1) detectors.
After noise subtraction, 4096 Hz | H1 | L1 | V1 |
---|---|---|---|
32 seconds (event signal reaches peak amplitude 16.53 seconds ± 30 msec from start†) | hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
3584 or 4096 seconds ‡ | hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
After noise subtraction, 16384 Hz | H1 | L1 | V1 |
---|---|---|---|
32 seconds (event signal reaches peak amplitude 16.53 seconds ± 30 msec from start†) | hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
3584 or 4096 seconds ‡ | hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
† The ± 30 msec window for peak amplitude is due to different arrival times in each of the three detectors.
‡ The H1, L1 datasets for strain data after noise subtraction are 3584 seconds long with the event signal reaching peak amplitude 1792.53 seconds ± 30 msec from start†. The V1 data files are 4096 seconds long, with the signal reaching peak amplitude 2048.53 ± 30 ms from the start of the file.
Before noise subtraction, 4096 Hz | H1 | L1 | V1 |
---|---|---|---|
32 seconds (event signal reaches peak amplitude 16.53 seconds ± 30 msec from start†) | hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
4096 seconds (event signal reaches peak amplitude 2048.53 seconds ± 30 msec from start†) | hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
Before noise subtraction, 16384 Hz | H1 | L1 | V1 |
---|---|---|---|
32 seconds (event signal reaches peak amplitude 16.53 seconds ± 30 msec from start†) | hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
4096 seconds (event signal reaches peak amplitude 2048.53 seconds ± 30 msec from start†) | hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
hdf5 gwf txt.gz |
† The ± 30 msec window for peak amplitude is due to different arrival times in each of the three detectors.
Source localization data for GW170814 are available as LIGO T1700453
Rapid triggers from LIGO data are available as GCN notices for GW170814