Second Commissioning Period. 3-9 March 2004.


The image quality was checked observing the stellar cluster M36. 

Stellar Cluster M36

The variation of the PSF across the FOV is  less than  1 pixel (0.25 arcsec).
 
  Variation of PSF across LIRIS FOV


Variation of FWHM and elipticity versus distance
 

A target of magnitude Ks=19.3 was detected with S/N~ 4.5 after 2600s in Ks band. The seeing was ~0 .9.


Deep Ks band image
 
 
First multi-object spectrum obtained with LIRIS. All objects were centered on the slits. The spectra are represented after subtraction of the two nodding positions.

Multi-object spectra NGC 2419 




 

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Last modified: 02/04/2004
Page mantained by: Jose Acosta and Mary Barreto