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Revised ILRS station screening process at ILRS Operations Centers (NASA and EDC)

Eurostat station status software (AIUB)

Station status information is available on a daily and near-real time basis through the EUROSTAT utility. These reports allow the ILRS community to quickly view the status of the stations in the tracking network. ILRS stations can automatically upload status information to EUROSTAT (maintained by the Astronomical Institute of the University of Berne, AIUB) that is then used to generate an overview of the current activities of the tracking stations. The real-time report (http://aiuli3.unibe.ch:8000/cgi-bin/cgi-eurostat) shows actual station operations at that point in time. The daily report (http://aiuli3.unibe.ch:8000/slr/daystatus.year) provides a one-line entry per day showing if stations are currently staffed, operational, off-shift, off-line because of system problems, etc. The ILRS would like to encourage all stations in the network to participate in the daily and, if possible, real-time exchange of status information.

Related information:

Eurostat display
Eurostat software
- C version, setup instructions
- Perl
- Presentation on Eurostat

Recent News

ILRS Data Files for SLR processing have been updated - The ILRS Analysis Standing Committee (ASC) has released updates to the following files:

(1) Data Handling File
(2) Eccentricity Files
(3) SLRF2020 Positions & Velocities

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Cancellation of ILRS Technical Workshop in Arequipa, Peru - Due to circumstances beyond their control, the University of San Agustin (UNSA) will not be able to host the 2025 International Workshop on Laser Ranging at Arequipa in October 2025. The ILRS thanks the UNSA team for all their efforts planning and preparing for hosting the workshop. The ILRS is considering the option of holding a virtual meeting this year (2025) if there is sufficient interest, support for the organization, and approval by the ILRS Governing Board. The ILRS Central Bureau welcomes your thoughts regarding holding a potential virtual ILRS workshop as well as offers to help organize the meeting along with the Central Bureau. The next in-person ILRS workshop will be in Buenos Aires, Argentina in 2026.

ILRS Central Bureau surveys stations on the ILRS Tracking Priority List - In March 2025, the ILRS Central Bureau (CB) conducted a survey of the ILRS stations to try and understand better how stations used the ILRS Priority List. Currently, the ILRS priority list is constructed to according to satellite orbit parameters as well as according to special project needs. The satellite tracking priority is generally arranged by altitude such that the satellites at the lowest altitude (and thus the shortest satellite passes) have the highest tracking priority. While logical, this mode paradoxically places the geodetic ITRF satellites (i.e. LAGEOS-1, LAGEOS-2, LARES-2) at the apparently high tracking priorities of 24, 25 & 18 respectively. In order to provide information that could inform a redesign of how tracking priorities are presented and communicated to the stations, the ILRS CB asked a series of short questions in a short survey. The survey was designed to be anonymous and left the possibility for survey participants to provide more information and other comments.

The ILRS station tracking priority survey results can be found here.

The decommissioned geodetic satellite WESTPAC will be returned to the ILRS target list with a low priority, not resulting in a significant burden to station scheduling or impact on other priority targets. In tests led by the ILRS Network and Engineering Standing Committeee (NESC), ILRS stations have demonstrated that with good predictions Westpac can be tracked routinely during the day and night, without a significant impact on the station tracking schedules or at the expense of other ILRS targets.

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Meetings

Munich Satellite Navigation Summit, Munich, Germany, March 26-28, 2025

FIG Working Week 2025, Brisbane, Australia, April 6-10, 2025

EGU General Assembly 2025, Vienna, Austria, April 27 - May 2, 2025

Publications

2016-2019 ILRS Report

Proceedings from the 19th International Workshop on Laser Ranging

International Laser Ranging Service

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