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Global calibration: method
Global Photometric Calibration
Martin D. Weinberg
Summary of presentation to the ERB
October, 1998
Global calibration: method
Northern cal field coverage: RA vs. time
North-South Analysis
Solutions: field star tracer diagnostic
Extinction coefficients
Variance due to image elongation
Comparison restricted to central 1/3 of scan
Color variation: no trends detected
Outliers
Photometric drift in time and position
Model
Solution with (solid) and without slopes (dotted)
Final summary
Martin Weinberg
1998-12-02
