Sonraí GNSS Gníomhach

Summer Maintenance: please note that throughout the summer there will be a upgrade and maintenance program running which will result in some downtime for some of the GNSS stations.

Advanced Notices:

Navan will be offline for a few hours on the 13th of July

The Limerick GNSS station is currently offline

Upgraded station Rinex which is not available to download from the website can be requested from

GPS stations are currently being upgraded. For a few days from when the new antenna goes live, until the coordinates can be recalculated, there may be an accuracy issue with some stations. There is currently only one station where this may be an issue now and that’s the New Ross station. Galway is due to be upgraded Friday 26th Oct and Cavan next week so care should be taken when working off these stations for the next few days.


View GNSS Station Location Map

Active GNSS Station Data

The active GNSS network for Ireland is the result of collaboration between Ordnance Survey Ireland (OSi) and the Ordnance Survey of Northern Ireland (OSNI).

Search and download hourly RINEX GNSS files from any one of the permanent (active) GNSS network stations, enabling users to combine this industry standard format GNSS data with their own data for GNSS post-processing applications.

Search and Download Active GNSS Station Data
NEW – Search by coordinates
Search by stations

You can also check the health of any one of the active GNSS stations for the previous thirty days or to check the health of all the stations on a particular day within the last thirty days.

The station health matrices refer to whether RINEX data is available from a station for any given.