Nov 17, 2025 · * required fields We may use your data for internal evaluations of OPUS use, accuracy, or related research.

Nov 17, 2025 · View shared solutions. Retrieve via ... NEW! See also OPUS Shared Solutions Dashboard

Nov 17, 2025 · What is OPUS? NOAA's Online Positioning User Service (OPUS) provides free access to high-accuracy National Spatial Reference System (NSRS) coordinates. OPUS uses …

Nov 17, 2025 · OPUS Projects has been successfully updated to work in the new International Terrestrial Reference Frame of 2020 (ITRF2020). For projects created before this update that …

OPUS is a popular NGS tool which helps survey-grade GPS users tie their local surveys to the National Spatial Reference System. By leveraging the processing software used to manage …

Nov 17, 2025 · OPUS: Online Positioning User Service NGS Home About NGS Data & Imagery Tools Surveys Science & Education

OPUS Solution results can be found in an email sent to the project manager, as well as to the email address used to upload the GNSS observation file. They can also be found within the …

Welcome to the OPUS Share Map. This provides a view of the many OPUS Share solutions and is updated nightly.

Observe longer: A longer session provides OPUS a better opportunity to accurately fix ambiguities and mitigate multipath error. The figure below shows the correlation between session duration …

OPUS allows users of both dual and single-frequency GPS units to process their data with respect to CORS stations within the International Terrestrial Reference Frame (ITRF).