obs typ SSSS  first epoch    last epoch    St-En dt   #expt     #exp    #actu  e/a e/a      multi    Obs per  Tot  Group/           File
              yyyy-ddd hh:mm yyyy-ddd hh:mm  hrs  sec  24obs     obs      obs   24%   %    mp1   mp2    slip  Slps  Agency        Time Stamp
  gp  dz GAIT 1994:175 00:01 1994:175 23:59 23.97 30    21748    21720    19035  88  88   0.51   0.84    268    71  NgsCors     2009May02 12:11:16