On 31 October 2020, anonymous ftp access will officially be discontinued at CDDIS. Beginning August 10, 2020, CDDIS will bandwidth limit ALL IPs using anonymous ftp to just 250KB/s transfer rates. CDDIS is STRONGLY recommending all users begin to transition to using alternate method of access to the CDDIS archive. Examples of alternate methods can be found at: https://cddis.nasa.gov/Data_and_Derived_Products/CDDIS_Archive_Access.html.

close window
Global and Regional Network Maps
zoom in on imagezoom out on image

Reset

  • GNSS
  • SLR
  • VLBI
  • DORIS
Learn about Techniques
02 September 2020

In place of an ILRS Workshop this November, the ILRS wanted to take the opportunity to try something different and look in detail at a selection of stations in the global network. Therefore, the ILRS is planning an online 'Virtual World Tour', to be held November 2-6, 2020, to virtually visit 5 stations around the world in 5 days. To learn more about the event please visit the workshop website: https://cddis.nasa.gov/ILRS_Virtual_World_Tour_2020/index.html.


ILRS workshops scheduled for 2020 and 2021 postponed
14 July 2020

As the ILRS community continues to deal with the impacts from the global coronavirus outbreak, the ILRS and the local organizers in Kunming have concluded that it is no longer possible to hold the 22nd International Workshop on Laser Ranging in October 2020 as planned. The ILRS Governing Board, in consultation with our colleagues in Kunming, has decided that we will delay this workshop until the fall of 2021; final dates for the event will be announced soon. Furthermore, the ILRS and UNSA will postpone the next ILRS Technical/Specialty Workshop, to be held in Arequipa Peru, until the fall of 2022.

We will keep the community informed of additional details as soon as practical.


2021 ILRS Technical/Specialty Workshop
02 April 2020

The ILRS Governing Board is pleased to announce that the 2021 ILRS Technical/Specialty Workshop will be held in the October 2021 timeframe in Arequipa, Peru. The workshop will be hosted by the Astronomical and Aerospace Institute at the University of San Agustin.

At this time, the ILRS continues planning for the 22nd International Workshop on Laser Ranging in November 2020 with the local hosts in Kunming, China.


Invitation to the official launch of the new Earthdata User Forum
18 February 2020

You are invited to the official launch of the new Earthdata User Forum on Tuesday, February 25, 2020 at 11AM for a demonstration. The Webex will include an overview of the site, as well as a demonstration of data users' and NASA Distributed Active Archive Centers subject matter experts' interaction about general questions, research needs and data applications.

The Atmospheric Science Data Center (ASDC), in cooperation with ESDIS, has created a new ESDIS Cross-DAAC Forum for Earth Science knowledge discovery and distribution. Currently, ASDC, Crustal Dynamics Data Information System (CDDIS), Goddard Earth Science Data and Information Services Center (GES DISC), Global Hydrology Resource Center (GHRC), and Land Processes DAAC (LP DAAC) are participants. The Earthdata User Forum offers Earth Science explorers the opportunity to search answers to Earth Science questions across NASA DAACs and Missions.


First announcement of the 22nd International Workshop on Laser Ranging
08 January 2020

The 22nd International Workshop on Laser Ranging will be held in Kunming, China November 02 - 06, 2020. There will be five days of interesting presentations, a lot of time for formal and informal discussions, meeting project partners and paving the road for the future development of satellite laser ranging.

During the workshop there will also be a chance to visit the laser ranging station in Kunming. Theme and session topics for the workshop are currently under discussion. The organizers are open for ideas and suggestions, so please contact the local organizing committee at ilrs.workshop@ynao.ac.cn if you would like to see specific topics included in the workshop.

Additional announcements will be made when registration and abstract submission are opened.


Journal of Geodesy "Special Issue: Satellite Laser Ranging" now published
25 November 2019

The Journal of Geodesy has recently published the "Special Issue: Satellite Laser Ranging" (Volume 93, Issue 11, November 2019, editors Erricos Pavlis, Vincenza Luceri, Toshimichi Otsubo, Ulrich Schreiber). This issue consists of twenty papers detailing recent developments in SLR.

View the list of papers and authors


Weekly GNSS data holdings (daily, hourly, high-rate)

Weekly SLR normal point pass segment totals (by satellite, LAGEOS and ETALON only)

Archive Explorer Tool Search the CDDIS data archive for SLR, DORIS, or GNSS data.


Site Log Viewer Tool Browse SLR, DORIS, or GNSS site logs by site or across the network.


Site Selection Tool Search and discover CDDIS data holdings using the GSAC-WS.