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In general, following each instrument intervention, a full complement of calibration frames (darks, flats, wavelengths, linearity, distortions, fibre-fed HCAO, telluric standard star, PSF star, and pupil images) are obtained. A multitude of parameters for each of these calibrations are scored and compared to their values prior to the intervention.
- Mirror recoating
2009-09-12: The primary mirror (M1) of UT4 has been re-coated. SINFONI returns to operations.
- Earthquake
2008-05-06: No adverse effects found in SINFONI.
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