CES @3.60m telescope :: Efficiency monitoring

Due to circumstances beyond our control, not all measurements were done in good seeing and photometric conditions. By clicking on the table links, you will see a listing of the measured efficiencies: the format is three columns containing wavelength (nm), efficiency (%) and seeing (arcsec). The figure links are plots of the efficiency versus wavelength.

The Nov.1999 is the originally measured efficiency. Since then a new fiber has been commissioned which is much more efficient, especially in the blue. Also the re-alignment of the instrument in 2002, and the new M2-unit installed in 2004, improved the performance.

Measurements for the High-resolution image slicer.
Date	eff @ 540nm (%)	Weather	table?	figure?
1999 Nov.	5.8	OK	no table	fig.
2001-11-23	6.2	OK	no table	fig.
2001-12-12	6.4	OK	no table	fig.
2002-01-19	5.7	not phot.	no table	fig.
2002-03-24	4.5	cirrus	no table	fig.
2003-01-13	5.5	not phot.	no table	fig.
2003-08-15	7.4	OK	table	fig.
2004-05-14	5.9	not phot.	no table	no fig.
2004-08-31/09-01	5.8	OK	table	fig.
2005-03-17	3.9	not phot.	table	fig.
2006-11-17/18	4.3	not phot., bad seeing	table	fig.

La Silla - Science Operation Department

CES - Efficiency monitoring

CES Total System Efficiency

La Silla - Science Operation Department CES - Efficiency monitoring

CES Total System Efficiency

La Silla - Science Operation Department

CES - Efficiency monitoring