ocr: - 15:42:29 - Dimension 4 Server Server Location libra.rice.edu USA, TX, Houston, Rice University ntp.css.gov USA,VA,.Atlington, Center for Sei.. vtserf.cc.vt.edu USA,VA, Blacksburg, Virginia Te... black-ice.cc.vtedu USA,VA, Blacksburg, Virginia Te... tick.usno.navy.mil USA.Washington DC,U.S. Nava... Server tick.usno.navy.mil Location: USA, Washington DC,U.S. Naval Ubservatory Protocol] SNTP How Often Correction