Calibrations from doy 56, 1987 were used to calibrate:
   doy 56
   doy 57
   doy 58
   doy 59

Calibrations from doy 61, 1987 were used to calibrate:
   doy 61
   doy 62
   doy 63
   doy 64

There were changes between doy 62 and 63 in the northeast.

Cathy (5/30/95)