| 09 Oct 2025 |
Bulletins |
IERS Bulletin A (rapid EOP data and predictions) - latest issue |
| 01 Oct 2025 |
Bulletins |
IERS Bulletin B (monthly EOP data) - latest issue |
| 01 Oct 2025 |
Messages |
IERS Message No. 537: ITRF2020-u2024 is available on line |
| 07 Jul 2025 |
Bulletins |
IERS Bulletin C (leap second announcements) - latest issue |
| 20 Jun 2025 |
Bulletins |
IERS Bulletin D (announcements of DUT1) - latest issue |
| 18 Jun 2025 |
Messages |
IERS Message No. 536: IAG Symposium REFAG2026 - Call for Abstracts |
| 04 Jun 2025 |
Messages |
IERS Message No. 535: New IAG Website Launched - geodesy.science is live! |
| 28 May 2025 |
Web Pages |
IERS Data Center update: Adoption of C04 EOP series consistent with ITRF2020-u2023 |
| 23 May 2025 |
Messages |
IERS Message No. 534: Third update of the 2020 C04 solution |
| 23 Apr 2025 |
Messages |
IERS Message No. 533: Forthcoming meetings |
| 04 Apr 2025 |
Messages |
IERS Message No. 532: EGU 2025: Meeting on EOP Prediction and Climate Variability in EOPs |
| 03 Apr 2025 |
Web Pages |
Forthcoming meetings: New meetings in 2025 added, others updated |
| 14 Mar 2025 |
Messages |
IERS Message No. 531: New Chair of IERS Directing Board |
| 05 Mar 2025 |
Web Pages |
Forthcoming meetings: New meetings in 2025 and 2026 added |
| 05 Mar 2025 |
Messages |
IERS Message No. 530: CCTF-IERS workshop on negative leap second - March 13, 2025 |
| 03 Mar 2025 |
Messages |
IERS Message No. 529: ITRF session G01-2 at the IAG Scientific Assembly in Rimini (Sept. 2025) |
| 03 Mar 2025 |
Messages |
IERS Message No. 528: AIUB/DGFI-TUM: PhD positions in reference systems |
| 27 Feb 2025 |
Messages |
IERS Message No. 527: IAG SA 2025-J02-3: Machine Learning for EOP and Gravity Field Assessment |
| 24 Feb 2025 |
Messages |
IERS Message No. 526: IAU Symposium 401 - Second announcement |
| 24 Feb 2025 |
Messages |
IERS Message No. 525: Announcement of REFAG & UAW 2026, March 2-6, 2026, Munich |
| 24 Feb 2025 |
Messages |
IERS Message No. 524: IAG Commission 3 & GGOS meetings - save the date |
| 20 Feb 2025 |
Messages |
IERS Message No. 523: IAG SA - G04-3: Monitoring and Modelling of EOPs Across Temporal Scales |
| 14 Feb 2025 |
Messages |
IERS Message No. 522: IERS Technical Note on the 2nd EOP PCC is available online |
| 13 Feb 2025 |
Technical Notes |
IERS Technical Note No. 42, "Second Earth Orientation Parameters Prediction Comparison Campaign", online available |
| 12 Feb 2025 |
Web Pages |
Forthcoming meetings: New meetings in 2025 to 2031 added, other updated |
| 11 Feb 2025 |
Messages |
IERS Message No. 521: GGOS Session on geodetic products at IAG Scientific Assembly 2025 |
| 23 Jan 2025 |
Web Pages |
International DORIS Service (IDS): Updated |
| 23 Jan 2025 |
Web Pages |
IERS Conventions Centre: updated |
| 23 Jan 2025 |
Web Pages |
IERS ICRS Centre: updated |
| 23 Jan 2025 |
Web Pages |
IERS Directing Board: list of members updated |
| 07 Jan 2025 |
Messages |
IERS Message No. 519: Reminder: TRF session at EGU 2025 |
| 02 Jan 2025 |
Web Pages |
Forthcoming meetings: New meetings in 2025 added, others updated |
| 20 Dec 2024 |
Messages |
IERS Message No. 518: IAG Assembly 2025 Rimini: Abstract Submission and Registration started |
| 13 Dec 2024 |
Web Pages |
Earth orientation data and ITRF: Interactive plots updated |
| 13 Dec 2024 |
Web Pages |
The International Terrestrial Reference Frame (ITRF): Link to ITRF2020-u2023 added |
| 09 Dec 2024 |
Messages |
IERS Message No. 517: ITRF2020-u2023 is available on line |
| 27 Nov 2024 |
Technical Notes |
IERS Technical Note No. 41, "Analysis and results of ITRF2020", online available |
| 21 Nov 2024 |
Messages |
IERS Message No. 514: IAG WG 1.2.3: Recommendations for GIA and mass transport models |
| 20 Nov 2024 |
Messages |
IERS Message No. 513: EGU 2025: GGOS: Fostering collaboration in geodesy |
| 11 Nov 2024 |
Messages |
IERS Message No. 512: Forthcoming meetings |
| 11 Nov 2024 |
Web Pages |
Forthcoming meetings: New meetings in 2025 and 2026 added, other updated |
| 08 Nov 2024 |
Messages |
IERS Message No. 511: Postdoc Opportunity at JPL |
| 08 Nov 2024 |
Messages |
IERS Message No. 510: EGU 2025: ITRF: determination, improvements and usage |
| 30 Oct 2024 |
Messages |
IERS Message No. 509: IAU Symposium 401: Advancing Reference Systems, Ephemeris, and Standards |
| 29 Oct 2024 |
Messages |
IERS Message No. 508: Launch of an internal ML sub-campaign within 2nd EOP PCC |
| 18 Sep 2024 |
Messages |
IERS Message No. 507: Joint Working Group "Evaluation of the Terrestrial Reference Frames" |
| 19 Aug 2024 |
Web Pages |
Relations to other organizations - IAU: Updated |
| 19 Aug 2024 |
Web Pages |
Relations to other organizations - IAG: Updated |
| 22 Jul 2024 |
Messages |
IERS Message No. 506: Session "Applications of AI/ML in Geodesy" at AGU 2024 |
| 18 Jul 2024 |
Messages |
IERS Message No. 505: Forthcoming meetings |
| 04 Jul 2024 |
Bulletins |
IERS Bulletin C (leap second announcements) - latest issue |
| 01 Jul 2024 |
Messages |
IERS Message No. 504: Session on Reference Frames at AGU 2024 |
| 24 Jun 2024 |
Web Pages |
ITRS Combination Centre at DGFI: updated |
| 02 May 2024 |
Messages |
IERS Message No. 503: Junior Professor position (tenure track) in geodesy at IGN, France |
| 18 Apr 2024 |
Messages |
IERS Message No. 502: Forthcoming meetings |
| 15 Mar 2024 |
Messages |
IERS Message No. 501: Postdoc Positions at The Hong Kong Polytechnic University |
| 06 Mar 2024 |
Messages |
IERS Message No. 500: Open geodesy faculty position at Ohio State University |
| 27 Feb 2024 |
Web Pages |
Earth orientation data: modified products added |
| 17 Jan 2024 |
Messages |
IERS Message No. 499: REMINDER: Call for Nomination - GGOS BNO director |
| 15 Jan 2024 |
Web Pages |
New page: Relations to other organizations - CCTF |
| 09 Jan 2024 |
Messages |
IERS Message No. 498: Forthcoming meetings |
| 04 Jan 2024 |
Messages |
IERS Message No. 497: PhD position in space geodesy and geodynamics in Sweden |
| 14 Dec 2023 |
Messages |
IERS Message No. 496: Call for Nominations: Director of the GGOS-BNO |
| 04 Dec 2023 |
Messages |
IERS Message No. 495: EGU 2024: Data Science and Machine Learning in Geodesy |
| 04 Dec 2023 |
Messages |
IERS Message No. 494: 2nd EOP PCC operational phase predictions now available |
| 20 Nov 2023 |
Messages |
IERS Message No. 493: EGU 2024: Earth rotation session |
| 20 Nov 2023 |
Annual Reports |
IERS Annual Report 2019 online available |
| 13 Nov 2023 |
Messages |
IERS Message No. 492: EGU 2024: Terrestrial Reference Frames: determination and applications |
| 06 Nov 2023 |
Messages |
IERS Message No. 491: EGU24: Global Geodetic Observing System: VLBI component merit |
| 31 Oct 2023 |
Messages |
REMINDER: Changes to IERS EOP xml and csv formats and addition of JSON format on November 6, 2023 |
| 09 Oct 2023 |
Messages |
IERS Message No. 490: Changes to IERS EOP xml and csv formats and addition of JSON format |
| 26 Sep 2023 |
Web Pages |
RESTful web services added |
| 25 Sep 2023 |
Messages |
IERS Message No. 489: DTRF2020 release update to Version v2 |
| 13 Sep 2023 |
Messages |
IERS Message No. 488: New GGOS Film - Terrestrial Reference Frames |
| 05 Sep 2023 |
Messages |
IERS Message No. 487: Call for participation in the AI for EOP Prediction Study Group at GGOS |
| 14 Aug 2023 |
Messages |
IERS Message No. 486: Announcement of IGS Symposium/Workshop 2024 |
| 10 Aug 2023 |
Web Pages |
Links to DTRF2020 added |
| 09 Aug 2023 |
Messages |
IERS Message No. 485: Updated ITRF2020 UT1/LOD series |
| 09 Aug 2023 |
Messages |
IERS Message No. 484: DTRF2020 Release |
| 28 Jul 2023 |
Messages |
IERS Message No. 483: Session on Earth's Deep Interior at AGU 2023 |
| 27 Jul 2023 |
Messages |
IERS Message No. 482: Forthcoming meetings |
| 25 Jul 2023 |
Messages |
IERS Message No. 481: Session on Earth Rotation at AGU 2023 |
| 24 Jul 2023 |
Messages |
IERS Message No. 480: Session on Reference Frames at AGU 2023 |
| 20 Jul 2023 |
Messages |
IERS Message No. 479: GENESIS mission job offers to work at the Royal Observatory of Belgium |
| 15 Jun 2023 |
Messages |
IERS Message No. 478: Updated Alignment Date of the IERS Bulletin A to IERS EOP 20 C04 series |
| 31 May 2023 |
Messages |
IERS Message No. 477: Journees 2023: Second announcement |
| 22 May 2023 |
Web Pages |
Recommendations from GGOS/IERS Unified Analysis Workshop (UAW) 2022 online |
| 28 Apr 2023 |
Messages |
IERS Message No. 475: Forthcoming meetings |
| 31 Mar 2023 |
Messages |
IERS Message No. 474: Postponed: Alignment of the IERS Bulletin A to IERS EOP 20 C04 series |
| 29 Mar 2023 |
Web Pages |
History of the IERS: pages on components and officers updated |
| 14 Mar 2023 |
Messages |
IERS Message No. 473: Alignment of the IERS Bulletin A to IERS EOP 20 C04 series |
| 14 Feb 2023 |
Web Pages |
EOP 20 C04 added to IERS webpages |
| 01 Feb 2023 |
Messages |
IERS Message No. 471: Implementation of the IERS 2020 C04 system on 14 February 2023 |
| 24 Jan 2023 |
Web Pages |
Links - Geodesy - Meetings: Updated |
| 19 Jan 2023 |
Web Pages |
International Laser Ranging Service (ILRS): Updated |
| 28 Dec 2022 |
Messages |
IERS Message No. 467: Journees 2023: Time and General Relativity - First announcement |
| 15 Dec 2022 |
Messages |
IERS Message No. 465: IUGG2023: IAG Session G01 Reference Systems and Frames |
| 08 Nov 2022 |
Web Pages |
New distribution list for notifications of IERS service outages |
| 10 Oct 2022 |
Web Pages |
Extended functionality of the IERS Plot Tool back online after maintenance work |
| 19 Jul 2022 |
Web Pages |
Interactive map of ITRF2020 network added |
| 12 Jul 2022 |
Web Pages |
Survey - GGOS Strategic Plan |
| 08 Jul 2022 |
Web Pages |
Update on availability of IERS web pages and services provided by the IERS Central Bureau |
| 16 May 2022 |
Web Pages |
The International Terrestrial Reference Frame (ITRF): Link to ITRF2020 added, other links updated |
| 19 Apr 2022 |
Messages |
IERS Message No. 456: ITRF2020 is available on line |
| 11 Apr 2022 |
Web Pages |
IERS data server available again |
| 25 Mar 2022 |
Web Pages |
Outage of iers.org data servers |
| 15 Feb 2022 |
Web Pages |
Links - Geodesy - Services: Updated |
| 14 Feb 2022 |
Messages |
IERS Message No. 450: Announcement of new IERS RS/PC website |
| 09 Feb 2022 |
Web Pages |
Links - Geodesy - General: new links added, others updated |
| 08 Feb 2022 |
Web Pages |
New Tool: Product Calendar |
| 03 Feb 2022 |
Messages |
IERS Message No. 449: Short film on geodesy - "Discover GGOS" |
| 21 Jul 2021 |
Messages |
IERS Message No. 439: Local Survey metadata project |
| 20 Nov 2020 |
Messages |
IERS Message No. 411: The ISO Geodetic Registry |
| 29 Oct 2019 |
Messages |
IERS Message No. 385: Shutdown of USNO server for the Radio Optical Reference Frame (RORF) |
