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Apr
2026

65th Meeting of the Civil GPS Service Interface Committee

Department of Transportation Headquarters building in Washington, DC

The 65th meeting of the U.S. Government’s Civil GPS Service Interface Committee (CGSIC) will be hosted by the U.S. Department of Transportation (DOT) Office of Positioning, Navigation, Timing (PNT) & Spectrum Management and the U.S. Coast Guard (USCG) Navigation Center (NAVCEN). The meeting will be held on 20 & 21 April 2026 at the Department of Transportation Headquarters building in Washington, DC. DOT serves as the civil lead for the Global Positioning System (GPS) and chairs the CGSIC in this capacity. NAVCEN fulfills duties as Deputy Chair and Executive Secretariat for the CGSIC. 

 

CGSIC Attendee Packet

 

 

Mon, April 20, 2026
CGSIC Day 1: Subcommittee Meetings

https://zoom.us/j/99884123323  
8:00am - 8:55am
 Check-In Open
8:55am - 9:00am
 Oklahoma Conference Room

Call to Order/Housekeeping
Mr. Harold Kiffer
CGSIC Executive Secretariat
9:00am - 9:10am
 Welcome/Opening Remarks
Dr. Christopher Erickson
Chair, CGSIC
9:10am - 9:20am
 CGSIC Overview
Captain Margaret Kennedy
Deputy Chair, CGSIC
9:20am - 12:30pm
 CGSIC Subcommittee Meeting - Surveying, Mapping and Geosciences

Oklahoma Conference Room

9:30 to 10:30 AM ET: Geospatial infrastructure - 1 hr sub-session

9:30 to 9:50 AM ET:  Dr. Stephen Merkowitz (NASA/Goddard) - “Geodetic Reference Instrument Transponder for Small Satellites (GRITSS)”

9:50 to 10:10 AM ET:  Dr. Shachak Pe’eri (NOAA/NGS) - “Foundation CORS: Access to the National Spatial Reference System”

10:10 to 10:30 AM ET:  OSC Christopher Gauthier (USCG Nav Center) - “CSAT CORS Analytic Tool”
 

10:30 to 10:40 BREAK

 

10:40 to 11:40 AM ET: GNSS research and addressing the Geodesy Crisis - 1 hr sub-session

10:40 to 11:00 AM ET:  Jeff Freymueller  (Michigan State University) - “Reducing the “Geodesy Crisis” with a new Geodesy Master’s Program and Undergraduate Internship Program”

11:00 to 11:20 AM ET:  Dr. Jihye Park (Oregon State) - “GNSS and Geomatics research at Oregon State University”

11:20 to 11:40 AM ET: Dr. Demian Gomez (Ohio State) - “A Full Kinematic, Backwards-Compatible Reference Frame for the Continental United States of America and Canada”
 

11:40 to 12:20 AM ET  GNSS capabilities - 40 minute sub-session

11:40 to 12:00 PM ET: Attila Komjathy (NASA JPL) - "GDGPS High Accuracy Products for Real-Time GNSS Applications: Supporting Public and Scientific Communities"

12:00 to 12:20 AM ET: Joel Johnson (CU Boulder) - "Multipath as a Feature: What Can Archived GNSS Noise Tell Us About the Surrounding Environment?"
 

12:20 to 12:30 AM ET:  Summary and audience questions

Dr. Daniel R. Roman (NOAA/NGS) - Session summary 
 
  • Dr. Daniel Roman
    Senior Advisor for Geodesy / National Geodetic Survey / NOAA / National Ocean Service
  • Mr. Neil Winn
    US Department of the Interior, Enterprise GIS: Positioning and Navigation
 download presentation for CGSIC Subcommittee Meeting - Surveying, Mapping and Geosciences
12:30pm - 1:30pm
 Lunch
1:30pm - 1:35pm
 Afternoon Subcommittee Introduction

Oklahoma Conference Room
Captain Margaret Kennedy
Deputy Chair, CGSIC
1:35pm - 4:30pm
 CGSIC Sub Committee Meeting - Timing

Oklahoma Conference Room

 

1:35 PM EDT
Welcome Remarks / Introduction
Dr. Patricia Larkoski (MITRE), Co-Chair
Dr. Bijunath Patla (NIST), Co-Chair
 

1:40 PM  
“A New Generation of Atomic Clocks”
Dr. Steven Peil
Chief Scientist, Precise Time Department, US Naval Observatory 
 

2:00 PM 
“A Resolution for Continuous Universal Time”
Dr. Michael Coleman
Space PNT Branch, Naval Research Laboratory (NRL)


2:20 PM 
“Cislunar Timing Developments”
Dr. Bijunath Patla
Physicist, National Institute of Science and Technology (NIST)

 

2:40 PM – Remote presentation 
“IEEE P1952 Standard for Resilient PNT User Equipment” (to be confirmed)
Dr. Doug Arnold
Chief Technologist, Meinberg USA
 


3:00 PM
Break (10 minutes)
 

3:10 PM EDT
“Preliminary Results from a Roadside GPS/GNSS Jammer Prevalence Assessment”
Dr. Austin Albright
Oak Ridge National Lab


3:30 PM
“Broadcast Positioning System (BPS)”
Tariq Mondal
Vice President, Broadcast Positioning System, NAB

 

3:50 PM – Remote presentation 
“5G/6G NTN: GNSS Resilience and Potential PNT”
Dr. Vijitha Weerackody
Principal Professional Staff, Johns Hopkins University Applied Physics Laboratory


4:10 PM 
Questions and Discussion
 

Conclusion of Subcommittee Meetings
  • Dr. Patricia Larkoski
    Lead Sensor Engineer, The MITRE Corporation
  • Dr. Bijunath Patla
    National Institute of Standards and Technology (NIST)
download presentation for CGSIC Sub Committee Meeting - Timing
Tue, April 21, 2026
CGSIC Day 2: Plenary Meeting

https://zoom.us/j/98680202244 
8:00am - 8:55am
 Check-In Open
8:55am - 9:00am
 Oklahoma Conference Room

Call to Order/Housekeeping
Mr. Harold Kiffer
CGSIC Executive Secretariat
9:00am - 9:10am
 Welcome/Opening Remarks & Keynote Introduction
Dr. Christopher Erickson
Chair, CGSIC
9:10am - 9:30am
 Keynote Address
Mr. David Carter
Chief Data Officer, Department of the Interior
 download presentation for Keynote Address
9:30am - 9:35am
 Introduction of the U.S. DOT Deputy Secretary
Ms. Seval Oz
The Assistant Secretary appointee for Research and Technology, U.S. Department of Transportation
9:35am - 9:50am
 Remarks and Questions
The Honorable Steven G. Bradbury
Deputy Secretary of Transportation
9:50am - 10:10am
 GPS Architecture and Questions
Mr. Bruno Mediate
Mission Delta 31 Director of Mission Integration, U.S. Space Force
 download presentation for GPS Architecture and Questions
10:10am - 10:30am
 U.S. Search and Rescue Satellite-Aided Tracking (SARSAT)
Mr. Anthony Foster
Deputy Chief, NASA Office of Search and Rescue
 download presentation for U.S. Search and Rescue Satellite-Aided Tracking (SARSAT)
10:30am - 10:50am
 Break
10:50am - 11:10am
 GPS Civil Liaison Updates
  • Dr. Andrew Hansen
    U.S. Department of Transportation
  • Mr. Shawn Skalski
    U.S. Department of Transportation
 download presentation for GPS Civil Liaison Updates
11:10am - 11:30am
 GPS International Activities
Mr. Joshua Wolny
Foreign Affairs Officer, Office of Space Affairs. U.S. Department of State
 download presentation for GPS International Activities
11:30am - 11:50am
 NASA Advancements using GNSS for Space Operations and Science
Mr. Joel Parker
Navigation and Mission Design Branch, NASA
 download presentation for NASA Advancements using GNSS for Space Operations and Science
11:50am - 12:10pm
 DHS PNT Updates
Ms. Brannan Villee
Division Director, National Resilience Solutions DHS Science and Technology Directorate
 download presentation for DHS PNT Updates
12:10pm - 12:30pm
 Q/A Panel
  • Dr. Andrew Hansen
    U. Department of Transportation
  • Mr. Shawn Skalski
    U.S. Department of Transportation
  • Mr. Joshua Wolny
    Foreign Affairs Officer, Office of Space Affairs. U.S. Department of State
  • Mr. Joel Parker
    Navigation and Mission Design Branch, NASA
  • Ms. Brannan Villee
    Division Director, National Resilience Solutions DHS Science and Technology Directorate
12:30pm - 1:45pm
 Lunch

CGSIC Leadership Luncheon Conference Meeting Room 5
1:45pm - 1:50pm
 Subcommittee Chair Introductions
Captain Margaret Kennedy
Deputy Chair, CGSIC
1:50pm - 2:15pm
 Subcommittee Reports

Timing Subcommittee - Dr. Patricia Larkoski

International Subcommittee - Mr. John Wilde

Surveying, Mapping, and Geosciences Subcommittee - Dr. Daniel Roman
2:15pm - 2:35pm
 FAA Navigation Programs Update
Ms. Deborah Lawrence
Navigation Programs Manager, FAA, DOT
 download presentation for FAA Navigation Programs Update
2:35pm - 2:55pm
 Timing in the Energy Sector
Mr. David Howard
Director of Grid Components, Office of Electricity, Department of Energy
 download presentation for Timing in the Energy Sector
2:55pm - 3:15pm
 U.S. National Space-Based PNT Update
Mr. Harold Martin
Director, National Coordination Office for Space-Based Positioning, Navigation, and Timing
 download presentation for U.S. National Space-Based PNT Update
3:15pm - 3:25pm
 Q/A Panel
  • Ms. Deborah Lawrence
    Navigation Programs Manager, FAA, DOT
  • Mr. David Howard
    Director of Grid Components, Office of Electricity, Department of Energy
  • Mr. Harold Martin
    Director, National Coordination Office for Space-Based Positioning, Navigation, and Timing
3:25pm - 3:40pm
 Break
3:40pm - 4:00pm
 RNT Foundation
Mr. Dana Goward
download presentation for RNT Foundation
4:00pm - 4:20pm
 Closing Keynote Address
Ms. Amy Nelson
Chief Geospatial Information Officer, Department of Transportation
4:30pm
 Close the 65th meeting of the Civil GPS Service Interface Committee