SECCHI DEPTH 
BAND 5 EXPOSURE _ BAND 4 EXPOSURE 
FIGURE 1 — BAND 4 EXPOSURE VS. SECCHI DEPTH — ERTS 70MM IMAGERY 
EXPONENTIAL REGRESSION REPRESENTED BY SOLID LINE 
SECCHI DEPTH 
r IGURE 2 
— BAND 5 EXPOSURE VS. SECCHI DEPTH — ERTS 70MM IMAGERY 
EXPONENTIAL REGRESSION REPRESENTED BY SOLID LINE