Index of ftp://tycho.usno.navy.mil/pub

[DIR] Root Directory

[DIR] TimeAndNavigation  4.00Kb  July 25 2014
[DIR] gps  4.00Kb  April 14 2017 at 16:20
[DIR] ntp  89.00b  April 18 2017 at 14:12
[DIR] papers  4.00Kb  April 21 2017 at 15:56
[DIR] time  44.00b  December 29 2016 at 18:41
[DIR] twstt  30.00b  August 23 2016