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Earth Orientation Department
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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
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Public Use of Limitations
Naval Meteorology and Oceanography Command
COMMANDER MATTHEW PAWLENKO
EXECUTIVE OFFICER FLEET WEATHER CENTER NORFOLK
03 June 2022
Cmdr. Matthew Pawlenko, a native of Evergreen Park, Illinois, graduated from Purdue University in 2002 with a Bachelor of Science in Electrical Engineering Technology. He also earned his Master of Science in Meteorology and Oceanography from the Naval Postgraduate School in 2011.
He commissioned through Naval ROTC directly into the Oceanography community and reported to the Naval Meteorology and Oceanography Professional Development Center, completing Basic Oceanography Officer Accession Training in 2002.
His operational tours include serving as a geospatial information and services (GI&S) officer at Fleet Survey Team; unmanned aerial vehicle officer in charge (OIC) at Naval Special Warfare Group 1; Cross Functional Troop 1 technical special reconnaissance OIC at Naval Special Warfare Support Activity 1; and battle watch captain, staff meteorology and oceanography officer and future operations officer, Carrier Strike Group 8, embarked aboard USS Dwight D. Eisenhower (CVN 69).
Ashore, he commanded Center for Naval Aviation Technical Training Unit, Keesler. Additional shore and staff assignments include watch officer at Fleet Weather Center, San Diego; training and operations officer at Naval Oceanography Special Warfare Center; oceanography assignments and placement officer at Naval Personnel Command; and chief of future intelligence capabilities branch and theater GI&S officer at Headquarters, U.S. European Command, Intelligence Directorate.
Pawlenko reported as executive officer, Fleet Weather Center Norfolk in August, 2020. His military decorations include the Defense Meritorious Service Medal, Meritorious Service Medal (two awards), Navy and Marine Corps Commendation Medal (four awards), Navy and Marine Corps Achievement Medal (three awards) and various service, unit and campaign awards.
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