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LIGO-G030423-00-D M. Landry – Hanover LSC Meeting, August 18, 2003
LIGO S2 CalibrationMichael Landry
LIGO Hanford Observatory
Representing the calibration team:Rana Adhikari, Peter Fritschel, Gabriela Gonzalez,
Luca Matone, Brian O’Reilly, Hugh Radkins, Patrick Sutton, Akiteru Takamori
LIGO-G030423-00-D M. Landry – Hanover LSC Meeting, August 18, 2003
Current status
• Online calibration with accuracy of ~20% was available with 1 hour latency
• Interim calibration issued with corrected DC calibration
• Final calibration to include hardware measurements: accurate representation of the actuation function
• Additional Wednesday talks relating to calibration include: Brian O’Reilly, Patrick Sutton, Xavier Siemens, and Soumya Mohanty
LIGO-G030423-00-D M. Landry – Hanover LSC Meeting, August 18, 2003
Calibration Basics I
R(f): Response Function Scale Factor (from Calibration Line)G(f): Open Loop Gain = C(f)D(f)A(f)