LIGO-Virgo Status Report
LIGO-Virgo status
Lisa Barsotti, Keita Kawabe, Nicolas Leroy, Brian O’Reilly, Alessio Rocchi
Broad picture
•
Small (few hours)
commissioning breaks
happened (and will happen
again) to fix problems that can
impact the stability or the
sensitivity
•
Keep the same schedule as announced during last call for maintenance
and calibration period:
•
Tuesday maintenance: 6-10 UTC for V1, 14-18 UTC for L1 and 15-19
UTC for H1 (with seasonal changes due to summer time);
•
Calibration on Wednesday: 15-19 UTC @ V1 and 20-23 UTC @ LIGO
•
At least one instrument tries to remain online at any given time.
Duty cycle
Summary
•
We continue to have good performance of the network with 78 % of
the time with at least 2 interferometers and only 1.4 % of time
without any interferometer
•
Number of alerts is growing and will be discussed later
•
As mentioned during last call, we may have a longer break during
autumn, still in discussion
Broad picture of recent commissioning breaks for maintenance and calibration of LIGO-Virgo interferometers. The duty cycle shows good network performance with a high percentage of operational time. Alerts are increasing, and potential longer breaks in autumn are being discussed.
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Presentation Transcript
LIGO-Virgo status Lisa Barsotti, Keita Kawabe, Nicolas Leroy, Brian O Reilly, Alessio Rocchi
Broad picture Small (few hours) commissioning breaks happened (and will happen again) to fix problems that can impact the stability or the sensitivity Keep the same schedule as announced during last call for maintenance and calibration period: Tuesday maintenance: 6-10 UTC for V1, 14-18 UTC for L1 and 15-19 UTC for H1 (with seasonal changes due to summer time); Calibration on Wednesday: 15-19 UTC @ V1 and 20-23 UTC @ LIGO At least one instrument tries to remain online at any given time.
Summary We continue to have good performance of the network with 78 % of the time with at least 2 interferometers and only 1.4 % of time without any interferometer Number of alerts is growing and will be discussed later As mentioned during last call, we may have a longer break during autumn, still in discussion
