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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 Steve McIntyre
Executive Officer, Fleet Numerical Meteorology and Oceanography Center
15 October 2020
Commander McIntyre is a native of Midlothian, Virginia. He graduated from Auburn University with a Bachelor of Science in Marine Biology and received his commission through the Naval Reserve Officer Training Corps in December 2002. He received a Master of Science in Hydrography from the University of Southern Mississippi in 2008 and a Master of Science in Tactical Oceanography and Meteorology from the Naval Postgraduate School in 2013.
Commander McIntyre reported onboard USS BUNKER HILL (CG-52) from 2003 to 2005 where he served as Communications Officer and later as Combat Information Center Officer, completing two Western Pacific deployments in support of Operation Iraqi Freedom. Commander McIntyre then reported onboard USS JARRETT (FFG-33) from 2005 to 2006 where he served as the Training Officer, completing one Southern Pacific counter-narcotics deployment.
Commander McIntyre redesignated to Special Duty Officer (Oceanography) in 2007. As a METOC Officer, he served at Fleet Survey Team from 2007 to 2010 as Expeditionary Division Officer and later as Special Projects Officer and Deputy Survey Support Department Head, where he received a Category-A Certification in Hydrography and qualified as Hydrographer in Charge. He served at Naval Oceanography Special Warfare Center from 2013 to 2015 and was attached to Naval Special Warfare Reconnaissance Team ONE, where he served as Cross Functional Troop Officer in Charge, supporting Operation Inherent Resolve.
Commander McIntyre’s shore assignments include the Oceanographer and Navigator of the Navy staff from 2015 to 2017 where he served as Unmanned Undersea Vehicle Requirements Officer and Undersea Warfare Action Officer. He served on the Joint Chiefs of Staff from 2017 to 2019 where he supported the Deputy Director of Intelligence for Battlespace Awareness as the Branch Chief for Environmental and Geospatial Intelligence capabilities. Commander McIntyre recently served as Commanding Officer of the Naval Oceanography Mine Warfare Center from 2019 to 2021.
Commander McIntyre has received the Defense Meritorious Service Medal, Meritorious Service Medal (2nd award), Naval and Marine Corps Commendation Medal (2nd award), Naval and Marine Corps Achievement Medal (4th award) and various unit awards and ribbons.
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