For a given file, the date of its transfer from the NASA site
is to be found in zdatatype.txt.
The date given by a standard ls -l can be greater as chdatels
may have been applied later on.

SINGH: WHERE ARE shgc1d14.pmb  shgc3d14.pmb COMING FROM?
NOT ON THE FTP SITE ON MAY 28

June 10:Line  13
gg*20* 105 instead of 107
th*13* 85,86 instead of 84,85
th*13* 94,95 instead of 95,96
The value of the first column of data (julian day) has to be changed
accordingly.