ES4

Data Time   (loc time) Exp delay Phase T flats
09/18/06            
Start  3:34 a.m     3 m - 2 m      1s             43 F           yes
Stop  5:58 a.m          
seeing   good
weather  calm, clear, cold
note  Test ES1.
   
 ES1     df_exp=80000
Start 4:55 a.m   bs_exp=2500
Stop 6:04 a.m    
seeimg good   bs_exp_flats =25000
      df_exp_flats = ~300