ES4

Data Time   (loc time) Exp delay Phase T flats
10/31/06               
Start     7:28 p.m   1.5 m      2 sec         60.5      37 F          yes
Stop     11:10 p.m          
seeing  good
weather transp. clouds
note Old opt system.
ES1    
Start   8:15 p.m. bs_exp=700 flat_bs=50000  
Stop   11:10 p.m. fd_exp=70000-50000 flat_fd=500