Timing Witness Signals Indicate Trustworthy Timing for G268556, a BBH Event Candidate

Document #:

LIGO-T1700039-v2

Document type:

T - Technical notes

Abstract:

As an extra precaution, we examined the timing witness signals to ensure that the aLIGO datastream’s timing was perfect around Event Candidate G268556, alse referred to as GW170104, observed at 1167559936= Wed Jan 04 10:11:58 UTC 2017. We found that the DuoTone witness indicated excellent timing performance on the sub-microsecond level and the IRIG-B signals indicated precise second decoding.

Files in Document:

• aLIGO_BBH_Candidate_TimingWitness_g268556_gw170104_v2.pdf (7.0 MB)

Topics:

• Data Acquisition System

Authors:

• Stefan Countryman
• Zsuzsanna Marka

Notes and Changes:

Fixed typo in caption

Referenced by:

• LIGO-T1700302-v2: Timing Witness Signals Indicate Trustworthy Timing for Candidate G275404
• LIGO-T1700303-v1: Timing Witness Signals Indicate Trustworthy Timing for Candidate G275697
• LIGO-T1700304-v1: Timing Witness Signals Indicate Trustworthy Timing for Candidate G277583
• LIGO-T1700305-v1: Timing Witness Signals Indicate Trustworthy Timing for Candidate G284239
• LIGO-T1700306-v1: Timing Witness Signals Indicate Trustworthy Timing for Candidate G288732
• LIGO-T1700384-v1: Timing Witness Signals Indicate Trustworthy Timing for Candidate G296853
• LIGO-T1700437-v1: Timing Witness Signals Indicate Trustworthy Timing for GW170814/G297595, a BBH Event Candidate
• LIGO-T1700438-v1: Timing Witness Signals Indicate Trustworthy Timing for GW170817/G298048, a BNS Event Candidate
• LIGO-T1700482-v1: Timing Witness Signals Indicate Trustworthy Timing for G298389, a GW Event Candidate
• LIGO-T1700483-v1: Timing Witness Signals Indicate Trustworthy Timing for G298936, a GW Event Candidate
• LIGO-T1700484-v1: Timing Witness Signals Indicate Trustworthy Timing for G299232, a GW Event Candidate