May 17, 2017
The 2016 IGS Technical Report – a comprehensive overview of the activities within the IGS – is now available for viewing and download via the IGS Knowledge Base and FTP. The report is edited by IGS Governing Board members Arturo Villiger and Rolf Dach, both of the Astronomical Institute of the University of Bern, Switzerland, who announced the publication via IGSmail-7482.
Workshop Preview: Clocks and Timing
May 10, 2017
Paris is home to the Bureau International des Poids et Mesures (BIPM), the intergovernmental organization that calculates the international reference time scale, Coordinated Universal Time (UTC), by collecting and comparing data from the world’s most accurate clocks. Since clocks and timing are critical components of space geodesy, a representative from BIPM – currently the Director of the BIPM Time Department, Felicitas Arias – sits on the IGS Governing Board. Dr. Arias has served the IGS community in this role since 2005.
IGS Clock Products and the associated Clock Products Working Group, established in 2003 after considerable joint work between the IGS and BIPM, now form a critical component of IGS Rapid and Final clock combinations.
The upcoming IGS 2017 Workshop in Paris will feature a session devoted to…Continue Reading >
Antenna Working Group Chair Transition
April 27, 2017
The IGS Antenna Working Group has announced that Arturo Villiger, of the Astronomical Institute of the University of Bern (AIUB), Switzerland, has taken over the role of Antenna Working Group Chair. He succeeds Ralf Schmid, from the German Geodetic Research Institute of the Technical University of Munich (DGFI-TUM), Germany, who led the group for over a decade.
During his tenure as Antenna Working Group Chair, Schmid pioneered absolute phase center correction modeling for testing purposes. Upon announcing his resignation from the position, Schmid noted that “New challenges are waiting for me. I would like to thank the members of the Antenna Working Group and all others that supported me over the years. It was always a pleasure to work for the IGS.”
Villiger is enthusiastic about his new position, stating that he looks…Continue Reading >
Spotlight on ESA Navigation Support Office
April 19, 2017
The European Space Agency (ESA) Navigation Support Office (NavSO), housed at the European Space Operations Centre (ESOC) in Darmstadt, Germany, generates satellite navigation products and services for ESA missions and for third-party customers, and strongly supports Europe’s global navigation satellite system programs: Galileo and the European Geostationary Navigation Overlay Service (EGNOS). In line with these activities, ESOC is a founding member of the International GNSS Service (IGS) and contributes across the full spectrum of IGS services.
As a Station-Operating Agency, the Navigation Support Office owns and operates 10 GNSS signal receivers in the IGS network and additional receivers in ESOC’s growing global GNSS sensor station network. Further, NavSO (around 30 experts) receives and processes data from over 600…Continue Reading >
IGS invites authors and editors to contribute
March 24, 2017
The IGS invites authors and editors to visit the IGS Library in the geodetic community who are publishing a scholarly publication, presentation, poster, pamphlet, or anything else citing the IGS or referring to IGS products and services, to please send the citation – in BibTex format – to email@example.com. Selected publications may be featured in the IGS News Feed.
Please include full references, abstracts, and the web address of the document, if available. If you are unfamiliar with the BibTex citation format, please use a program such as BibDesk and JabRef to create a compatible citation.
MGEX Achievements, Prospects, and Challenges
March 14, 2017
As announced by Oliver Montenbruck in IGSmail-7446, the IGS Multi-GNSS Experiment has recently published a comprehensive paper detailing its achievements in the last five years, future prospects, and challenges. The article, published in Advances in Space Research, Volume 59, Issue 7, 1 April 2017, Pages 1671–1697, discusses the multi-GNSSproducts derived from the IGS monitoring station network as well as progressmade within the MGEX project to include BeiDou, Galileo, and QZSS for precise point positioning, atmospheric research, and other applications.
The article is available in its entirety until April 25, 2017 via the provided by Montenbruck in IGSmail-7446. Due to copyright restrictions, a pre-print previous version of the article is available in the IGS Knowledge Base.
Please also contribute to the IGS Library with…Continue Reading >
IGS Workshop 2017 - Registration Now Open
March 7, 2017
Registration for the 2017 IGS Workshop is now open at http://igsworkshop2017.ign.fr/. Early bird discount for limited time is available until May 05, 2017. Abstract submissions for oral and poster sessions is May 05, 2017. LOC email address locigsworkshop2017 at ign.fr #igsworkshop2017
RINEX 3.03 Update 1 Now Available
March 7, 2017
The IGS RINEX Working Group recently announced the release of documents detailing the RINEX 3.03 Update 1. The document, along with a full description of the release notes, is available on the IGS Knowledge Base.
Receiver Independent Exchange Format (RINEX) is a data interchange format for raw satellite navigation data, enabling users to post-process the received data themselves, as needed for optimal results. It is considered the standard for storing all data needed for GNSS positioning and navigation, providing a means to seamlessly store data transmitted from the GNSS and GEO/SBAS satellites, as well as meteorological data and fundamental observations made by GNSS receivers.
The first proposal for RINEX was developed by the Astronomical Institute of the University of Bern for the easy exchange of the GPS data to be…Continue Reading >
GGOS Session at EGU 2017 General Assembly
March 6, 2017
As a service of the IAG, the IGS will be participating in the upcoming GGOS session, taking place at the EGU General Assembly in Vienna, Austria:
G2.1 - The Global Geodetic Observing System: Improving Today’s Infrastructure for Tomorrow’s Science
Convener: Günter Stangl Co-Conveners: Detlef Angermann , Michael R. Pearlman , Richard Gross Oral / Tue, 25 Apr, 08:30–10:00 / Room K1 Poster / Attendance Tue, 25 Apr, 17:30–19:00 / Hall X3
For more information, please visit the EGU website: http://ow.ly/JtlR309DEPb
Be sure to follow IGS on social media for more information and updates: http://www.igs.org/social
Spotlight on Geoscience Australia
February 23, 2017
Australia: A Continent on the Move
Did you know that Australia sits on one of the Earth’s fastest moving tectonic plates and is moving north east by approximately seven centimeters a year? Australian scientists are working on moving Australia’scoordinate reference frame, the Geocentric Datum of Australia 1994 (GDA94) to reflect our actual position in the world. The GDA94 underpins all spatial data and mapping in Australia, and ensures access to the most accurate location-based data available. This is significant when it comes to the use of equipment or spatial data that relies on accurate positioning data.
IGS contributing organisation Geoscience Australia is the Australian Government science body responsible for developing and maintaining the Geocentric Datum of Australia, and ensuring it is of the highest technical…Continue Reading >
IGS14 Reference Frame Transition
February 7, 2017
By Paul Rebischung (IGN), Ralf Schmid (DGFI-TUM), and Allison Craddock (NASA JPL, IGS Central Bureau)
The International GNSS Service (IGS) recently adopted a new reference frame, called IGS14, on 29 January 2017 (GPSWeek 1934). At the same time, an updated set of satellite and ground antenna calibrations, igs14.atx, was implemented. The switch from IGb08/igs08.atx to IGS14/igs14.atx was announced with IGSMAIL-7399 on 21 December 2016 by representatives of the IGS Reference Frame and Antenna Working Groups, as well as the Analysis Center Coordinator.
IGS14 is the latest in a series of GNSS reference frames adopted by the IGS. These reference frames form the basis of the IGS products, and are derived from each new version of the International Terrestrial Reference Frame. Updating to IGS14 will align IGS products to ITRF2014,…Continue Reading >
Geodesy schedule for the AGU 2016 Fall Meeting Posted
November 18, 2016
IGS Workshop 2017 - Paris, France July 3-7, 2017
September 8, 2016
Please save the dates for the next IGS Workshop to be hosted by the Institut National de l’Information Géographique et Forestière (IGN) in Paris, France, July 3-7, 2017.
Information will be posted here plans develop.
CFP: GNSS Performance Monitoring IGMA-IGS Joint Trial Project
August 24, 2016
The GNSS Performance Monitoring IGMA-IGS Joint Trial Project is a joint activity of GNSS Providers and the IGS being organized through the UNOOSA/International Committee on GNSS. The Project is aimed at creating an authoritative international GNSS monitoring and assessment system with results trusted by all parties and worldwide. IGS participation within the Joint Trial Project is being solicited through this Call for Participation.
Disaster Management and Recovery Framework
August 6, 2016
Watch the video presentation of Disaster Management & Recovery Framework: The Surveyors Response presented by Greg Scott at the 78th Fig Working Week in 2016 about how United Nations Geo-response to disaster management. The impact on and the challenges ahead for the surveying and geospatial professional.
Greg Scott leads the Secretariat for the United Nations Committee of Experts on Global Geospatial Information Management (UN-GGIM), providing strategic policy advice and leadership in the coordination and implementation of UN-GGIM initiatives with Member States and related International Organizations involved in national, regional and global geospatial information management.
IGS Technical Report 2015
June 29, 2016
Applications of the Global Navigation Satellite Systems (GNSS) to Earth Sciences are numerous. The International GNSS Service (IGS), a voluntary federation of government agencies, universities and research institutions, combines GNSS resources and expertise to provide the highest–quality GNSS data, products, and services in order to support high–precision applications for GNSS–related research and engineering activities.
This IGS Technical Report 2015 includes contributions from the IGS Governing Board, the Central Bureau, Analysis Centers, Data Centers, station and network operators, working groups, pilot projects, and others highlighting status and important activities, changes and results that took place and were achieved during 2015.
CFP GNSS Augmentation to the Tsunami Early Warning System
April 17, 2016
This is a Call for Participation to research scientists, geodetic research groups and national agencies in support of the implementation of the recommended Global Navigation Satellite System (GNSS) Augmentation to Tsunami Early Warning Systems (GATEW). The call seeks to establish a working group to be a catalyst and motivating force for the definition of requirements, identification of resources, and for the encouragement of international cooperation in the establishment, advancement, and utilization of GNSS for Tsunami Early Warning.
Workshop 2016 Plenary and Posters Available
March 24, 2016
All the #igsworkshop2016 plenary video presentations with their slides are now available at IGS Presents.
Sea-level change: A scientific and social challenge for the 21st century
March 22, 2016
Learn more about how IGS helps sea-level change analysts like John Church watch his presentation.
IGS Workshop 2014 - Celebrating 20 Years!
March 16, 2016
We are pleased to announce—the IGS 2014 20th Anniversary Workshop Website is now available! http://www.igs.org This should be a memorable meeting, and already a very interesting program and schedule is in place, as you will see at the website!
For those of you needing a US entry visa please see the instructions at the website, and we will prepare the invitation letters in a very timely manner.
Many thanks to Rolf Dach, Astronomical Institute, University of Bern, Chair of the IGS 2014 Scientific Committee; our local organizing committee, the IGS Central Bureau; and to each of you - who, for so many years, contribute to concrete developments, exponential advances, and a true sense of a global community.
Please note: the IAG/GGOS/IERS Unified Analysis Workshop (UAW) will be held in conjunction & following…Continue Reading >
Properly Naming your Rinex 3 files
January 27, 2016
To all station data providers currently providing Rinex 3 files as part of the IGS network. Please at your earliest convenience implement the correct naming scheme for your Rinex 3 files as the old Rinex 2 names for Rinex 3 files are no longer appropriate.
Enclosed in the pdf is a set of recommendations that you may findEnclosed in the pdf is a set of recommendations that you may find useful, but many different organizations have implemented their own renaming methods, and some vendors already allow correct naming of Rinex 3 files but clearly not all so some action from Station Operators is needed.
The Rinex 3 format clearly defines the new naming structure: http://bit.ly/1YaodnI
To find your “IGS station long name” go to http://igs.org/network click on “options” , and in the first column “Site” select the checkbox…Continue Reading >
ITRF 2014 Now Available
January 21, 2016
The ITRS Center at IGN has the pleasure to announce to the community theavailability of the ITRF2014 solution at the dedicated web site:
I want to take this opportunity to acknowledge the enormous efforts of theTechnique Services (IVS, ILRS, IGS, IDS) and their Analysis and CombinationCenters for their contributions by providing reprocessed solutions.The quality of the ITRF2014 is certainly benefiting from these techniqueimproved solutions. Many thanks to a number of institutions and individualsfor their contributions to the ITRF2014 project.I want also to acknowledge the contribution of DGFI and JPL colleagues, aswell as my colleagues at the ITRS Center: IGN Geodetic Research Laboratory(LAREG) and IGN Survey Department (SGN).
The ITRF2014 web site contains the most important…Continue Reading >
IGS ACC Transition to GA/MIT
January 14, 2016
On Thursday January 14, 2016, the role and operational data processing for the IGS Analysis Center Coordinator (ACC) will transition from NOAA/NGS to a combined role for Geosciences Australia (GA) and MIT. The operational data processing to generate the IGS ultrarapid, rapid, and final orbit and clock products will be carried in a cloud computing environment sponsored by GA. The operational oversight of product quality and generation will be split between GA and MIT depending on time day. The new system has been running in parallel for the past two months and has been generating results that are fully consistent with the NOAA/NGS operational processing.
For users and analysis centers, there should be no apparent changes after the transition. All the products are available from and deposited to the same locations as…Continue Reading >
2015 Technical Report Contributions Due
November 16, 2015
We appreciate your interest and valuable contributions to the reportagain. The next report, IGS Technical Report 2015, is scheduled to be published at the beginning of 2016.
The deadline for submissions is January 31, 2016.
In agreement with the previous IGS Technical Reports, the issue for 2015 must contain contributions from the main components of the IGS, namely global analysis centers (ultra rapid, rapid and final products), the global data centers, the working groups, and the pilot projects.
Contributions from associated analysis centers, regional data centers, and other IGS related organizations are welcome as well.
2016 Workshop Registration Open
October 6, 2015
The website for the 2016 IGS Workshop is now live: http://igsworkshop2016.org
Registration is now open and includes an early bird discount rate for registrations before January 1, 2016. Registration includes admission to the Wednesday night dinner and a cruise on Sydney Harbour. A skeleton program has been drafted and information on how to submit an abstract for both oral and poster sessions is available. It is advised that attendees apply for Visa’s as early as possible, information is available on the website. If you have any questions or would like further information, please contact the local organizing committee by emailing IGSWorkshop2016@ga.gov.au
Guide to Using IGS Products Updated
September 17, 2015
Since 1994, the International GNSS Service (IGS) has provided precise GPS orbit products to the scientific community with increased precision and timeliness. Many national geodetic agencies and GNSS (Global Navigation Satellite System) users interested in geodetic positioning have adopted the IGS precise orbits to achieve centimeter level accuracy and ensure long-term reference frame stability. Relative positioning approaches that require the combination of observations from a minimum of two GNSS receivers, with at least one occupying a station with known coordinates are commonly used. The user position can then be estimated relative to one or multiple reference stations, using differenced carrier phase observations and a baseline or network estimation approach. Differencing observations is a popular way to eliminate common…Continue Reading >
Release of RINEX Version 3.03
August 5, 2015
The IGS and RTCM-SC104, RINEX Working Group would like to announce the release of RINEX 3.03. Major RINEX 3.03 Changes: Added the Indian Regional Navigation Satellite System (IRNSS). Updated the IONOSPHERIC CORR record format and specification. Updated the LEAP SECONDS record format and specification. Updated the TIME SYSTEM CORR record format and specification. Changed the BeiDou B1 observation codes back to the RINEX 3.01 convention. Clarified the GPS Navigation message fit interval (time period in hours). Clarified the QZSS Navigation message fit interval (a flag (0/1)). Updated the document to more clearly indicate that only known tracking modes are supported in SYS/#/OBS TYPES records and RINEX 3.03. Updated Section 8.3.2 and Appendix A8 BROADCAST ORBIT-5 to clarify the use of the Issue of Data(IOD) parameter in…Continue Reading >
Multi GNSS Antenna Phase Center Model Introduced
July 21, 2015
43 MGEX Stations Added to IGS Network
July 15, 2015
2014 IGS Technical Report
May 15, 2015
2015 Strategic Implementation Plan
January 1, 2015
Gary Johnston of Geoscience Australia elected Chair of IGS Governing Board
December 22, 2014
IGS 2013 Progress Dashboard
October 7, 2014
2014 Workshop Compendium
July 13, 2014
The IGS is pleased to announce upcoming IGS Workshop – Celebrating 20 Years of Service. This five-day workshop will bring scientists, engineers, and geodesists from all over the world to the campus of California Institute of Technology (Caltech) at 1200 E California Blvd, Pasadena, California 91125, United States for a week of presentations, discussions, and meetings. The workshop will be composed of plenary sessions with invited oral presentations, three poster sessions, and numerous working group splinter meetings, multiple splinter meetings, and other noteworthy events.
Second IGS Reprocessing Campaign (Repro2)
May 30, 2014
2014 Strategic Implementation Plan
May 21, 2014
IGS MGEX Introduced
April 23, 2014
With four new and emerging constellations (BeiDou, Galileo, QZSS, IRNSS) as well as the ongoing modernization of the U.S. Global Positioning System and Russia’s GLONASS, the world of satellite navigation is undergoing dramatic changes. Facing these challenges, the International GNSS Service has initiated the Multi-GNSS Experiment to enable an early familiarization with the new systems and to prepare their incorporation into high-precision GNSS modeling and analysis. This article reports on the status of the new constellations and the MGEX project and describes initial data products and recent results for individual systems.
IGS Strategic Plan 2013-1016
February 21, 2014
IGS becomes a Network Member of ICSU World Data System
January 23, 2014
IGS 2012 Workshop Recommendations
July 13, 2013
IGS Progress Report
April 23, 2013
IGS Real-Time Services
April 1, 2013
The International GNSS Service (IGS) has ensured the availability of open access, high-quality GNSS data products since 1994. These products enable access to the definitive global reference frame for scientific, educational, and commercial applications – a tremendous benefit to the public.
Through the Real-time Service (RTS), the IGS extends its capability to support applications requiring real-time access to IGS products. RTS is a GNSS orbit and clock correction service that enables precise point positioning (PPP) and related applications, such as time synchronization and disaster monitoring, at worldwide scales. RTS is based on the IGS global infrastructure of network stations, data centers and analysis centers that provide world standard high-precision GNSS data products.
The RTS is currently offered as a GPS-only beta…Continue Reading >
IGS 2012 Technical Report
April 1, 2013
IGS Site Guidelines
April 1, 2013
IGS Director Ruth Neilan receives Levallois Medal by the IAG Past President Gerhard Beutler
September 6, 2012
IGS Director Ruth Neilan receives Levallois Medal by the IAG Past President Gerhard Beutler.
Guidelines for IGS Technical Report 2012
September 1, 2012
2012 IGS Workshop
July 1, 2012
2012 IGS Strategic Implementation Plan
July 1, 2012
2011 IGS Technical Report
July 1, 2012
Welcome to IGS Presents
April 9, 2012
Welcome to IGS Presents. Videos. Presentations. Posters. Images. Exclusive content by leaders of the community.
PPP-RTK & Open Standards Symposion and Workshop
March 1, 2012
IGS Workshop on GNSS Biases 2012
October 1, 2011
IGS Central Bureau is now an NTRIP Caster!
October 1, 2011
IGS M-GEX Response Form
October 1, 2011
IGS M-GEX - Call for Participation - New Information
October 1, 2011
2012 IGS Workshop - 1st announcement
September 1, 2011
On behalf of the local organising committee I would like to give you advance notice of the IGS AC Workshop 2012 to be held July 23-27, 2012 at the University of Warmia and Mazury (UWM) in Olsztyn, Poland. The meeting will hosted by the Department of Astronomy and Geodynamics of UWM, with the local organizing committee led by Andrzej Krankowski (kand at uwm.edu.pl). Shailen Desai (shailen.d.desai at jpl.nasa.gov; JPL) will serve as scientific programme organiser for the workshop. Please reserve these dates on your calendar so that we have a well-attended and productive workshop. A web site providing details about the workshop will be available in September. If you have any comments or suggestions on the scientific content or organisation aspects of the workshop please contact Shailen or Andrzej, respectively. We look forward to…Continue Reading >
IGS08 Realization adopted
April 1, 2011
IGS Strategic Implementation Plan - 2011
March 1, 2011
IGS 2010 Workshop Presentation Videos
June 1, 2010
IGS 2010 Workshop Presentation Photos
June 1, 2010
IGS Workshop, 28 Jun - 2 July, Newcastle upon Tyne, Englane
June 1, 2010
IGS Strategic Plan - 2010
June 1, 2010
IGS Workshop 2010 Announced
February 12, 2010
The 2010 workshop of the International GNSS Service (IGS) will be held at Newcastle upon Tyne (UK) 28 June - 1 July, followed on 2 July by a one-day symposium on vertical rates from GNSS. Please consult the website for the IGS Workshop programme, registration form and abstract submissions. Travel information and accommodation booking is also provided.The workshop is open to the entire community and will feature invited talks, posters, and splinter meetings on a full range of issues important to IGS activities: monumentation, station integrity, data transmission and storage, analysis center activities, antenna and receiver calibrations, troposphere and ionosphere modeling and products, modeling of station and satellite motions, and requirements for new applications. See igsmail for details
New Reference Frame Coordinator
February 1, 2010
Multi-GNSS Asia - 25-26 January 2010, Sofitel Centara Hotel, Bangkok, Thailand
October 1, 2009
IGS Guidelines Updated
October 1, 2009
IGS Infrastructure Committee introduced
September 1, 2009
Third Meeting of the International Committee on GNSS - ICG 3
December 1, 2008
AGU Fall Meeting 15-19 December, San Francisco, CA, USA
December 1, 2008
IGS Workshop 2-6 June, Miami Beach, Florida, USA
June 1, 2008
Photo Gallary Added
June 1, 2008
Real Time Pilot Project Call for Participation issued
June 1, 2007
A one-page printable information sheet is available in the publications area
May 1, 2006
IGS Workshop 8-12 May, Darmstadt
March 10, 2006
Information on the change to spec format for IGS orbits
January 25, 2006
October 21, 2005
CFP in the Unification of African Reference Frames - ‘Project AFREF’ avialble
October 21, 2005
The Call for Participation in the Unification of African Reference Frames - ‘Project AFREF’ - is available
The IGS FAQ has been extensively revised
June 1, 2005
IGS now officially stands for the International GNSS Service
March 17, 2005
The IGS Terms of Reference and several Policy and Charter documents have been updated. IGS now officially stands for the International GNSS Service. This change reflects the IGS’ incorporation of GLONASS, and interest in future GNSS such as Galileo.
Performance analysis summary of determiningthe GPS satellites’ orbits
January 13, 2005
A summary of how well the most recent IGS analysis was able to determine the GPS satellites’ orbits is available.
Overlapping period of orbits in sp3 and sp3c formats provided until September 2005
November 8, 2004
The overlap period during which the IGS will provide orbits in sp3 and sp3c formats will continue until September, 2005. After that, IGS orbits will be provided in sp3c format. Update your software accordingly! More information and links to the format specifications are available here
2001-02 Annual Report available
October 5, 2004
Information on switch to sp3c updated
August 30, 2004
IGSStation mailing list split off from IGSMail. See IGSMail 4921
April 14, 2004
IGS Site Guidelines and new site Checklist available
April 14, 2004
IGS Site Guidelines and new site Checklist, available via the network page reflect the new IGSStation list.
The Proceedings of the 2002 Ottawa “Towards Real-Time” workshop is now available electronically
November 10, 2003
A description of different types of monuments, their design and implementation are now available
February 21, 2003
IGS Final orbit recent usage products available
December 4, 2002
Recent usage in IGS Final orbit products is noted at the bottom of the individual site pages accessible from the station list or http://www.igs.org/network clickable maps.
Maps of stations with GPS/GLONASS tracking are available
December 4, 2002
Maps of stations with GPS/GLONASS tracking are available The station list denotes which stations are new, Global, hourly, or IGLOS (GPS/GLONASS)
Several improvements have been made to the Tracking Network area recently
December 4, 2002
A summary of evolving IGS data and metadata formats is available
October 30, 2002
2000 Technical and Annual Reports and Strategic Plan aviable
June 27, 2002
The 2000 IGS Technical Reports, 2000 IGS Annual Report, and Strategic Plan have recently been made available in PDF format.
IGS Products will be based on ITRF2000 as of 2 December 2001
November 20, 2001
IGS Products will be based on ITRF2000 as of 2 December 2001 (GPS week 1143). Please see the IGSMail announcement for more details.
Ottawa Workshop for Oct, 2001 postponed
October 2, 2001
The Ottawa Workshop scheduled for Oct, 2001 has been postponed. Information on rescheduling will follow.
TIGA Pilot Project page is up. Call for Participation is available
June 30, 2001
IGS Workshop to be held October 15 - 18, 2001, in Ottawa, Canada
May 30, 2001
Our Calendar reflects the http://www2.geod.nrcan.gc.ca/%7Epierre/igs_workshop IGS Workshop to be held October 15 - 18, 2001, in Ottawa, Canada.
IGS products table summarized revised
May 23, 2001
The current accuracies, latencies, and sample intervals of the IGS products are nicely summarized in a revised table.
IGS LEO Pilot Project Meeting appears with other 2001 meetings
January 4, 2001
January 4, 2001
ION GPS 2000 Meeting to include concurrent IGS Usre Forum
August 14, 2000
IGS User Forum to be held September 20 in Salt Lake City (in conjunction with the ION GPS 2000 Meeting).