Calibrations from doy 162, 1987 were used to calibrate:
   doy 162
   doy 163
   doy 164
   doy 165

Calibrations from doy 166, 1987 were used to calibrate:
   doy 166
   doy 167
   doy 168
   doy 169

There were changes between doy 167 and 168 in the west.

Cathy (6/15/95)