News
IGS Website, Server, FTP, and Mailing List Transitions
October 21, 2017

The final transition to igs.org from our former site, igscb.jpl.nasa.gov is now complete. Details of this transition are as follows:

Products Previously Obtained from the igscb.jpl.nasa.gov Mirror are Now Available Only from Data Centers

Please take a moment to verify that any bookmarks or automatic downloads set to igscb.jpl.nasa.gov are updated to IGS.org addresses, or to those of the IGS Data Centers listed below.

IGS GNSS products (i.e., orbits, station positions, EOP, clock solutions) will no longer be mirrored at igscb.jpl.nasa.gov. Please see CDDIS or one of the other Global Data Centers listed below for the IGS products. CDDIS has a nice description of the product layout here.

IGS products will now only be available in subdirectories by GPS week at the following locations:

CDDIS:

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IGS Associate Member Open Meeting at AGU 2017
October 17, 2017

The Central Bureau is excited to be organizing the second open meeting for Associate Members and Working Group Presentations, (taking place the morning before the closed Governing Board meeting) this 10 December in New Orleans, from 9:00 AM-12:00 PM.

The agenda for this meeting will consist primarily of Working Group or Pilot Project Chairs (or designated representative) giving 5-minute reports on key issues and progress toward their Paris Workshop recommendations; followed by 3-5 minutes of discussion time.

Presentations from last year’s inaugural AM open meeting may be found on the IGS Knowledge Base: https://kb.igs.org/hc/en-us/articles/115000831828-2016-December-Associate-Member-Meeting .

If you would like to attend, please register here: https://beta.doodle.com/poll/dzceayd73ea8n2w9 Please contact the…

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Workshop 2017 Plenaries and Posters Now Available
August 26, 2017

Workshop 2017 in Paris was a great success with over 30+ countries representing. We are proud to announce that all the videos and posters are available for everyone to view on IGS Presents.

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Mailing List Changes & Transition Details
August 10, 2017

We have been in the process of migrating the IGS services to the IGS Cloud hosting platform. The last element of this is the IGS mailing list.

The mailman application is scheduled to be transitioned to the igs.org domain where eventually the igscb domain will no longer be able to receive messages. Please start using the igs.org domain email addresses as of now to assure smooth transition. Login and follow this article to get the latest updates. Please contact us to report any issues.

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New GNSS Satellite Metadata Whitepaper
July 28, 2017

The IGS Multi-GNSS Working Group, led by Oliver Montenbruck, recently released a White Paper, titled “Satellite and Operations Information for Generation of Precise #GNSS Orbit and Clock Products.” As summarized by Montenbruck et. al., the paper discusses the parameters needed to ensure the highest possible performance of IGS products for all constellations and motivates the need for provision of satellite and operations information by the GNSS providers. All information requested by the IGS is considered to be sufficiently abstract such as to neither interfere with the GNSS providers’ safety and security interests nor with intellectual property rights.

The paper is now available for download on the IGS Knowledge Base.

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IGS Workshop Mini-Spotlight on Workshop Hosts
June 29, 2017

The IGS 2017 Workshop in Paris, France will begin in less than a week! In this final Workshop Preview, we shine the spotlight on the workshop hosts and local organizers.

Next week’s workshop will be hosted by Institut National de l’Information Géographique et Forestière (National Institute of Geographic and Forestry Information, IGN), Centre National d’Études Spatiales (National Centre for Space Studies, CNES), and Campus Spatial of the University of Paris-Diderot. IGS Governing Board members Zuheir Altamimi (IAG Representative) and Paul Rebischung (IGS Reference Frame Coordinator), both of IGN, serve on the 2017 Workshop Local Organizing Committee. Joining them on the committee are: Felix Perosanz, of CNES; Anne Duret, Kevin Eyermann, and Xavier della Chiesa, of IGN; and Inez Burger and Lucciana Berrebi, of In2Events.

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IGS Workshop 2017 Registration Closed
June 14, 2017

IGS Workshop 2017 registration is now closed. Due to maximum occupancy limitations of the main workshop venue, standard registration has closed early. A limited number of registrations are still available for those who are willing to view workshop presentations in an adjacent meeting room, where presentations will be projected via a live stream. These limited registrations still include the full ability to attend poster and splinter sessions. For more information, please contact the local organizing committee directly via this form.

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IGS Workshop Keynote Preview
June 2, 2017

This year, the IGS Workshop will feature a special keynote lecture on the Galileo system, given by Marco Falcone of the European Space Agency (ESA). The keynote will address the current status of the now 18-satellite constellation, with special focus on the commissioning of the last four satellites, which were launched in November 2016. Overall system performance will also be discussed, including availability of signal in space, satellite ranging, positioning, and associated availability at the user level. Falcone will address timing performance with regard to Galileo System Time in contrast to UTC as well as GPS to Galileo Time Offset. He will also discuss the mission recovery of the GSAT201 and 202 satellites in elliptical orbit, plans for GSAT104 usage, satellite production, and the path ahead to full operation… Continue Reading >

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IGS 2016 Technical Report Now Available
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.

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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…

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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…

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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…

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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 cb@igs.org. 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.

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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…

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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

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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…

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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

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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…

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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,…

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Geodesy schedule for the AGU 2016 Fall Meeting Posted
November 18, 2016

The #Geodesy schedule for @theAGU #FallMeeting has been posted, with many presentations and posters from IGS members. Please visit the AGU schedule page for more information: ow.ly/Aafm305iS5m

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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.

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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.

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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.

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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.

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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.

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Workshop 2016 Plenary and Posters Available
March 24, 2016

All the #igsworkshop2016 plenary video presentations with their slides are now available at IGS Presents.

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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.

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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.

And -

Please note: the IAG/GGOS/IERS Unified Analysis Workshop (UAW) will be held in conjunction & following…

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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…

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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:

http://itrf.ign.fr/ITRF_solutions/2014/

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…

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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…

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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.

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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

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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…

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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…

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Multi GNSS Antenna Phase Center Model Introduced
July 21, 2015
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43 MGEX Stations Added to IGS Network
July 15, 2015
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2014 IGS Technical Report
May 15, 2015
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2015 Strategic Implementation Plan
January 1, 2015
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Gary Johnston of Geoscience Australia elected Chair of IGS Governing Board
December 22, 2014
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IGS 2013 Progress Dashboard
October 7, 2014
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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.

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Second IGS Reprocessing Campaign (Repro2)
May 30, 2014
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2014 Strategic Implementation Plan
May 21, 2014
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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.

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IGS Strategic Plan 2013-1016
February 21, 2014
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IGS becomes a Network Member of ICSU World Data System
January 23, 2014
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IGS 2012 Workshop Recommendations
July 13, 2013
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IGS Progress Report
April 23, 2013
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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…

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IGS 2012 Technical Report
April 1, 2013
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IGS Site Guidelines
April 1, 2013
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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.

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Guidelines for IGS Technical Report 2012
September 1, 2012
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2012 IGS Workshop
July 1, 2012
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2012 IGS Strategic Implementation Plan
July 1, 2012
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2011 IGS Technical Report
July 1, 2012
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Welcome to IGS Presents
April 9, 2012

Welcome to IGS Presents. Videos. Presentations. Posters. Images. Exclusive content by leaders of the community.

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PPP-RTK & Open Standards Symposion and Workshop
March 1, 2012
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IGS Workshop on GNSS Biases 2012
October 1, 2011
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IGS Central Bureau is now an NTRIP Caster!
October 1, 2011
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IGS M-GEX Response Form
October 1, 2011
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IGS M-GEX - Call for Participation - New Information
October 1, 2011
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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…

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IGS08 Realization adopted
April 1, 2011
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IGS Strategic Implementation Plan - 2011
March 1, 2011
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IGS 2010 Workshop Presentation Videos
June 1, 2010
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IGS 2010 Workshop Presentation Photos
June 1, 2010
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IGS Workshop, 28 Jun - 2 July, Newcastle upon Tyne, Englane
June 1, 2010
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IGS Strategic Plan - 2010
June 1, 2010
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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

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New Reference Frame Coordinator
February 1, 2010
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Multi-GNSS Asia - 25-26 January 2010, Sofitel Centara Hotel, Bangkok, Thailand
October 1, 2009
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IGS Guidelines Updated
October 1, 2009
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IGS Infrastructure Committee introduced
September 1, 2009
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Third Meeting of the International Committee on GNSS - ICG 3
December 1, 2008
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AGU Fall Meeting 15-19 December, San Francisco, CA, USA
December 1, 2008
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IGS Workshop 2-6 June, Miami Beach, Florida, USA
June 1, 2008
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Photo Gallary Added
June 1, 2008
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Real Time Pilot Project Call for Participation issued
June 1, 2007
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A one-page printable information sheet is available in the publications area
May 1, 2006
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IGS Workshop 8-12 May, Darmstadt
March 10, 2006
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Information on the change to spec format for IGS orbits
January 25, 2006
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IGSMail announcement
October 21, 2005
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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

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The IGS FAQ has been extensively revised
June 1, 2005
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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.

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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.

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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

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2001-02 Annual Report available
October 5, 2004
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Information on switch to sp3c updated
August 30, 2004
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IGSStation mailing list split off from IGSMail. See IGSMail 4921
April 14, 2004
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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.

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The Proceedings of the 2002 Ottawa “Towards Real-Time” workshop is now available electronically
November 10, 2003
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A description of different types of monuments, their design and implementation are now available
February 21, 2003
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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.

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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)

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Several improvements have been made to the Tracking Network area recently
December 4, 2002
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A summary of evolving IGS data and metadata formats is available
October 30, 2002
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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.

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Please include the IGS logo and citation in all websites, presentations, publications, or posters that use IGS data, products, or services. IGS is a service of IAG.