FATAL  :050108:2053: 9.0 TRACK/openfile: IOSTAT error olding file ../rinex/rovr<dat>0.05o ERROR     2
FATAL  :050112:2040:18.0 /HOME/TAH/GG/KF/TRACK/OLD/TRACK/svpos/read_nav: IOSTAT error opening file ../rinex/base0120.05n ERROR     2
FATAL  :050123:1345:46.0 TRACK/openfile: IOSTAT error olding file ../rinex/base0080.05o ERROR     2
FATAL  :080922:1309:37.0 /USERS/TAH/GAMIT_10.20/KF/BIN/TRACK/openfile: IOSTAT error olding file ../rinex/rover/rovr008<S01>.05o ERROR     2