The data shown (if any) are
either (1)
the recorded
Z
RMS from UKIRT focus measurements for the current UT date
converted to the equivalent K band (2.2 microns) seeing at zenith (Cass
K band seeing) or
(2) direct WFCAM K band seeing measurements, again corrected to zenith
(WFCAM K band seeing)
.
Please see
Seigar et
al, 2002, Proc. SPIE, 4844, 366 for more information on UKIRT's Z
RMS
measurements. If no data appear then no focus measurements have
been taken during the current UT date. Please also note that WFCAM data
are taken with 0.4 arcsec pixels.
