MM = MONTH
 DD = DAY OF MONTH
 YY = YEAR
 KEY1..KEY24: 0=NO SAMPLING THIS HOUR 
              1=SAMPLING OCCURRED THIS HOUR
 NUM = NUMBER OF RECEPTORS
 JJJ = JULIAN DAY NUMBER 
 
  SF6 DEVELOPMENTAL DATA SET
  NUMBER OF DAYS:  20  NUMBER OF HOURS:  165

       Key1...............Key24
       ------------------------
                111111111122222
MMDDYY 123456789012345678901234  NUM   YYJJJ  
080282 000000000011111111100000  186   82214
080582 000000000111000000000000  188   82217
080682 000000000011111111100000  207   82218
080782 000000000011111111100000  205   82219
081382 000111111111000000000000  213   82225
081482 000000000111111111000000  193   82226
081682 000000000011111111100000  201   82228
081882 000000000011111111100000  211   82230
082182 000000000000000111111111  223   82233
092282 000000000011111111100000  183   82265
092482 000000000000000111111111  198   82267
092882 000111100000000000000000  184   82271
093082 000000000011111111100000  205   82273
100282 000000000001111100000000  197   82275
100482 000011111111100000000000  205   82277
100582 000000000001111111110000  209   82278
100682 000000000000000111111111  202   82279
101082 000000000011111111100000  198   82283
101582 000000000001111111110000  197   82288
101882 000011111111100000000000  196   82291
 
  SF6 EVALUATION DATA SET
  NUMBER OF DAYS:  18  NUMBER OF HOURS:  162

       Key1...............Key24
       ------------------------
                111111111122222
MMDDYY 123456789012345678901234  NUM   YYJJJ  
072882 000000000011111111100000  150   82209
073082 000000000011111111100000  187   82211
080182 000000000011111111100000  176   82213
080382 000000000001111111110000  190   82215
080882 000000000011111111100000  197   82220
081082 000111111111000000000000  190   82222
081582 000000000011111111100000  205   82227
082082 000000000011111111100000  212   82232
082382 000000000011111111100000  214   82235
082482 000000000011111111100000  212   82236
092382 000000000011111111100000  192   82266
092682 000000000011111111100000  192   82269
100182 000000000001111111110000  198   82274
100382 000111111111000000000000  201   82276
100982 000000000001111111110000  207   82282
101182 000000000000000111111111  207   82284
101382 000011111111100000000000  189   82286
101682 000000000011111111100000  196   82289
 
   TOTAL NUMBER OF SAMPLING DAYS:   38