These are the magnitudes estimated for a few standard stars, with WFCAM using the Z_MK and Y_MK filters, averaged over several nights. A more complete list of WFCAM measurements of standard stars over wider range of coordinates will be made available soon. Once observations are obtained using UFTI, these magnitudes will be replaced with those.

• UKIRT faint standards observed with the MKO ZY filters and the WFCAM – Preliminary results, text file

The preliminary estimate of the Y_MK UFTI zero point is 22.7+/-0.07