North is up and East is left.
The positions of the fields are subject to change at the level of a few arcsec. This arrangement would take 16 orbits and would provide 1-orbit depth over a f.o.v. Green in the figure shows the WFPC2 field, blue is STIS, and red is NIC3. Shading density reflects the exposure time in orbits. WFPC-2 test image of the HDFS taken in October 1997 with the F606W filter and an integration time of 6600s.