65th Meeting of the Civil GPS Service Interface Committee

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

CGSIC_Attendee_Packet.pdf (1.4 MB)

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

CGSIC Subcommittee Meeting - Surveying, Mapping and Geosciences

9:30am - 10:30am

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”

Dr. Stephen Merkowitz

NASA/Goddard

Dr. Shachak Pe’eri

NOAA/NGS

OSC Christopher Gauthier

USCG Nav Center

10:30am - 10:40am

Break

10:40am - 11:40am

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”

Jeff Freymueller

Michigan State University

Dr. Jihye Park

Oregon State

Dr. Demian Gomez

Ohio State

11:40am - 12:20pm

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?"

Attila Komjathy

NASA JPL

Joel Johnson

CU Boulder

12:20pm - 12:30pm

Summary and Audience Questions

Session summary

Dr. Daniel R. Roman

NOAA/NGS

12:30pm - 1:30pm

Lunch

1:30pm - 1:35pm

Afternoon Subcommittee Introduction

Oklahoma Conference Room

Captain Margaret Kennedy

Deputy Chair, CGSIC

CGSIC Sub Committee Meeting - Timing

1:35pm - 1:40pm

Welcome Remarks / Introduction

Dr. Patricia Larkoski

(MITRE), Co-Chair

Dr. Bijunath Patla

(NIST), Co-Chair

1:40pm - 2:00pm

A New Generation of Atomic Clocks

Dr. Steven Peil

Chief Scientist, Precise Time Department, US Naval Observatory

2:00pm - 2:20pm

A Resolution for Continuous Universal Time

Dr. Michael Coleman

Space PNT Branch, Naval Research Laboratory (NRL)

2:20pm - 2:40pm

Cislunar Timing Developments

Dr. Bijunath Patla

Physicist, National Institute of Science and Technology (NIST)

2:40pm - 3:00pm

“IEEE P1952 Standard for Resilient PNT User Equipment” (to be confirmed)

Remote presentation

Dr. Doug Arnold

Chief Technologist, Meinberg USA

3:00pm - 3:10pm

Break

3:10pm - 3:30pm

Preliminary Results from a Roadside GPS/GNSS Jammer Prevalence Assessment

Dr. Austin Albright

Oak Ridge National Lab

3:30pm - 3:50pm

Broadcast Positioning System (BPS)

Tariq Mondal

Vice President, Broadcast Positioning System, NAB

3:50pm - 4:10pm

5G/6G NTN: GNSS Resilience and Potential PNT

Remote presentation

Dr. Vijitha Weerackody

Principal Professional Staff, Johns Hopkins University Applied Physics Laboratory

4:10pm

Questions and Discussion

Dr. Patricia Larkoski

Lead Sensor Engineer, The MITRE Corporation

Dr. Bijunath Patla

National Institute of Standards and Technology (NIST)

Conclusion of Subcommittee Meetings

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

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

10:10am - 10:30am

U.S. Search and Rescue Satellite-Aided Tracking (SARSAT)

Mr. Anthony Foster

Deputy Chief, NASA Office of Search and Rescue

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

11:10am - 11:30am

GPS International Activities

Mr. Joshua Wolny

Foreign Affairs Officer, Office of Space Affairs. U.S. Department of State

11:30am - 11:50am

NASA Advancements using GNSS for Space Operations and Science

Mr. Joel Parker

Navigation and Mission Design Branch, NASA

11:50am - 12:10pm

DHS PNT Updates

Ms. Brannan Villee

Division Director, National Resilience Solutions DHS Science and Technology Directorate

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

2:35pm - 2:55pm

Timing in the Energy Sector

Mr. David Howard

Director of Grid Components, Office of Electricity, Department of Energy

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

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

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