Conducted by the US Naval Observatory (USNO) in partnership with the UH IfA, Cambridge Astronomical Survey Unit, and the Wide-Field Astronomy Unit, ROE, Edinburgh using the UKIRT Wide Field Camera (WFCAM) covering the northern sky from 0 — +60° in declination (12,700 sq. degrees), UHS has data releases in J and more recently K-bands. Surveys done in H-band are nearly complete with a new survey of Y-band and a reobservation in J-band starting in late 2023. Regions previously covered in the UKIDSS sky survey have been excluded in the current rounds of the UHS survey.

You can see a current coverage chart in each band individually or altogether at this link: http://casu.ast.cam.ac.uk/wfcamsp/uhs