After the wavelength calibration is obtained from an LSS arc lamp exposure,
the wavelength corresponding to the central CCD pixel is calculated. The
values trended here are for the 300V grism with no filter and a slit width of
0.29". They are plotted vs. the temperature at the instrument focus.

</font><p><font size="2">
<i>DB Name: fors2_lss_wave <br>
TPL.ID: FORS2_lss_cal_daycalib <br>
QC1 DB parameter: central_wlen
</p></i>

More information can be found on
the <a href="http://www.eso.org/observing/dfo/quality/FORS2/qc/lsswlc/lsswlc.html">plot tutorial page</a>