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Mission & Vision
Naval Oceanographic Office
Fleet Numerical Meteorology & Oceanography Center
United States Naval Observatory
News from the Naval Observatory
Earth Orientation Department
USNO Earth Orientation Products
Contents of Bulletin A
USNO GPS Products
GPS User Information
USNO VLBI-based Products
VLBI Correlator Data
VLBI-based Earth Orientation Parameters (EOP)
Earth Orientation Information Center
General Information about Earth Orientation
Frequently Asked Questions About Earth Orientation
What Is Earth Orientation?
What Is Polar Motion?
What does the Earth rotation coordinate measure?
What is the Celestial Pole Offset?
What is a Leap Second?
How do we measure Earth Orientation?
What causes variations in the Earth's orientation?
Who uses Earth orientation information?
Publications About Earth Orientation Products
Earth Orientation Software
Precise Time Department
The USNO Master Clock
The USNO Master Clock
Time Dissemination at the USNO
USNO Alternate Master Clock (AMC)
Cesium Atomic Clocks
Hydrogen Masers at the USNO
Rubidium Fountain Clocks
USNO Time Scales
International Time Scales and the BIPM
Definitions of Systems of Time
Global Positioning System
Global Positioning System Overview
USNO GPS Data Categories Explanation
CGGTTS Data Format
USNO GPS Time Transfer
GPS Information: SA, DGPS, Leap Seconds, etc.
GPS Week Number Rollover
GPS Timing Data and Information
USNO Format Explanation
USNO Computer Display Clocks
Two-Way Satellite Time Transfer (TWSTT)
Network Time Protocol (NTP)
US Eastern Time Zone NTP Servers
US Mountain Time Zone Servers
DoD Customer Servers
Astronomical Applications Department
Celestial Reference Frame Department
Senior Enlisted Advisor
Naval Oceanography Operations Command
Fleet Weather Center - Norfolk
Fleet Weather Center - San Diego
Joint Typhoon Warning Center
Public Use of Limitations
Naval Meteorology and Oceanography Command
Lieutenant Commander Jason S. Maenza
Executive Officer, Fleet Survey Team
03 June 2022
Lieutenant Commander Jason “Jay” Maenza is a native of Clayton, New Jersey and enlisted in the U.S. Navy as a Cryptologic Technician (Interpretive) in August 2003. He holds a B.S. in Arabic from the U.S. Naval Academy, a M.S. in Management (Intelligence) from the University of Maryland University College, and a Space Systems Certificate from Naval Postgraduate School.
At sea, he has served as the Information Operations (IO) Officer for Carrier Strike Group TWELVE for a worldwide deployment onboard the USS Theodore Roosevelt (CVN-71).
Ashore, his tours have included Navy Information Operations Command (NIOC) Georgia as a Cryptologic Watch Officer and Deputy Division Chief; NIOC Norfolk as a Battle Watch Captain; the Junior Officer Cryptologic Career Program (JOCCP) with tours in multiple diverse national missions; and at Cryptologic Warfare Activity SIXTY SIX as a Department Head and a Chief of Operations for a national mission. Currently, he is serving as Executive Officer of the Fleet Survey Team aboard Stennis Space Center, Mississippi.
His personal awards include the Defense Meritorious Service Medal, Joint Service Commendation Medal, Navy Commendation Medal, Joint Service Achievement Medal, and the Navy Achievement medal.
Fleet Survey Team
DoD Accessibility/Section 508
No Fear Act
Plain Writing Act
Veterans Crisis Line
DoD Safe Helpline
Commander, Naval Meteorology and Oceanography Command | 1100 Balch Blvd. | Stennis Space Center, Mississippi 39529
Official U.S. Navy Website