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Purpose: W unit pupil rotator absolute scale measurement.

Procedure: The telescope rotator has to be moved at various angles and frames of the WFS CCD has to be acquired.

20100429_033920

AGW rotator: 410 degrees

AGW derotator: 173.1 degrees

20100429_034542

Note: rotator moved clockwise.

AGW rotator: 380 degrees

AGW derotator: 173.1 degrees

20100429_035102

Note: our derotator is moved +15 degrees. We visually check that the derotator compensates the rotation previously introduced with the rotator.

Note2: The save optical loop data FAILED due to a problem with the new fields added to the FITS files not tested before. In particular, the HEXAPOD positions were too long for the FITS header field and the saving of this data was removed.

WARNING: Alfio says that other fields in the FITS header may not be saved properly after this change (TBC).

AGW rotator: 380 degrees

AGW derotator: 173.1+15 degrees

20100429_035749

Note: moved rotator by 90 degrees.

AGW rotator: 290 degrees

AGW derotator: 173.1 degrees

20100429_035920

AGW rotator: 290 degrees

AGW derotator: 173.1+45=218.1 degrees

20100429_040116

AGW rotator: 290 degrees

AGW derotator: 173.1+45+15=233.1 degrees

20100429_041537

AGW rotator: 410 degrees

AGW derotator: 173.1+45+15=233.1 degrees

20100429_041729

AGW rotator: 410 degrees

AGW derotator: 173.1 degrees

UT 065620 RON TEST
Flowerpot OFF
FW off
Stage off

10.8 e-
6.6 e-
4.3 e-

-- FernandoQuiros - 29 Apr 2010
Topic revision: r2 - 29 Apr 2010, EnricoPinna
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