A 4.85 GHZ SKY SURVEY .3. EPOCH 1986 AND COMBINED DEGREES-LESS-THAN-DELTA-LESS-THAN+75-DEGREES(1987) MAPS COVERING 0)

The NRAO seven-beam receiver was used on the 91 m telescope in Green B ank, WV during 1986 November to survey the declination band 0-degrees < delta < +75-degrees at 4.85 GHz. We made sky maps from the 1986 data alone, primarily for comparison with the epoch 1987 maps [Condon et a l., AJ, 97, 1064 (1989)] to allow variability studies of a large, unbi ased sample of sources selected at 4.85 GHz. The 1986 and 1987 data se ts were combined, reedited, and mapped to yield maps fully covering th e OMEGA = 6.07 sr region 0-degrees < delta < +75-degrees with noise an d position uncertainties divided by nearly square-root 2. The 1986 and combined (1986+1987) maps are available on FITS-format tapes.