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Contents of Bulletin A
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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
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Public Use of Limitations
Naval Meteorology and Oceanography Command
Commander Kelly Taylor
Deputy Superintendent, U.S. Naval Observatory
15 June 2022
Commander Kelly Taylor is a native of Erie, Pa. She attended the Naval Academy Preparatory School in 1993 and graduated from the United States Naval Academy in 1997 with a Bachelor of Science degree in Oceanography.
After attending Surface Warfare Officer School in Newport, RI, she reported to USS Ashland (LSD 48) in 1998, where she served as Machinery Division Officer and Combat Information Center Officer.
Following her lateral transfer to the oceanography community, she reported to the Naval Postgraduate School in 2000, where she earned a Master of Science degree in Physical Oceanography and Atmospheric Science.
Following completion of graduate studies in 2003, Cmdr. Taylor reported to the National/ Naval Ice Center in Washington D.C. as Operations Officer.
In 2006, she reported to Naval Special Warfare Group One as the Staff Meteorology and Oceanography Officer. During this tour she also served as the Technical Special Reconnaissance Officer in Charge at Naval Special Warfare Support Activity One.
In February 2009, Cmdr. Taylor reported to USS Peleliu (LHA 5), where she served as the Operations Aviation Division Officer and Commander, Amphibious Squadron Three Staff Oceanographer and completed a WESTPAC 2010 deployment.
In February 2011, she reported as Officer in Charge of Professional Development Detachment, Pacific, located in San Diego, Calif.
In 2012, Cmdr. Taylor reported to the Fleet Weather Center, San Diego, as the Strike Group Oceanography Team Department Head. During this tour, she also served as the Operations Officer.
She returned to the Naval Ice Center in 2014 as the Commanding Officer and Director of the National Ice Center.
In 2016 she reported to Oceanographer of the Navy Staff (N2N6E) as the Deputy Director for Task Force Climate Change, and was co-author of the Navy’s 2019 Arctic Strategic Outlook.
In 2018 she reported to the Office of Geography at National Geospatial Intelligence Agency. She also served as Deputy Operations Officer in the Maritime Safety Office.
In 2020 she was assigned to the United States Naval Observatory as the Deputy Superintendent.
Commander Taylor’s personal awards include the Defense Meritorious Service Medal, Meritorious Service Medals, Navy Commendation Medals, Navy and Marine Corps Achievement Medals and various service and campaign awards.
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