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Naval Oceanographic Office
Fleet Numerical Meteorology & Oceanography Center
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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
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
Commander Jennifer Landry
Commanding Officer, Fleet Survey Team
03 June 2022
Jen Landry commissioned in August 2003 and was assigned to the Naval Nuclear Power Training Command for instructor duty. In 2007, she accepted a lateral transfer into the Meteorology and Oceanography community.
She served as Command Duty Officer, Training Officer, and Operations Officer at Naval Maritime Forecast Center, Norfolk; Flag Aide to the Oceanographer of the Navy at the Naval Observatory and the Pentagon; Staff METOC for Commander, Strike Group Eleven embarked aboard USS Nimitz; Executive Officer of the Naval Oceanography Anti-Submarine Warfare Center in Yokosuka, Japan; and Environmental Capabilities Portfolio Manager and Geospatial Information and Services Officer on the Joint Staff.
CDR Landry assumed command of Fleet Survey Team in September 2021.
CDR Landry completed a Bachelor of Science from Denison University in Physics and Mathematics and a Master of Science in Oceanographic Engineering from the Massachusetts Institute of Technology – Woods Hole Oceanographic Institution Joint Program in Oceanography. She is originally from the Cincinnati area and has been married to Norm Landry since 2008.
Fleet Survey Team
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