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Precise Point Positioning

GPS week number rollover

At 23:59:42 UTC on April 6, 2019, there was a GPS week rollover event where the 10-bit GPS week number in the broadcast message was reset to zero. Since this time, a few CSRS‑PPP users have submitted RINEX data files affected by the GPS week rollover. Users must ensure the validity of the observation date in their RINEX submissions and in some cases may need to update the firmware of their receivers. Please contact the receiver manufacturer accordingly. Here is a link to a UNAVCO article with further information on the GPS week number rollover.

CSRS-PPP Service Upgrade

The Canadian Geodetic Survey of Natural Resources Canada updated the CSRS-PPP service on Thursday, August 16th 2018. This update included the transition to a new processing software (SPARK) which replaced the previous software (GPSPACE). Information detailing the file formats for all updated output files is available on the modernized CSRS-PPP service page. Sample static and kinematic solutions are also available for download to allow you to familiarize yourself with the new outputs.

New velocity grid NAD83(CSRS)v7

View documentation about the new NAD83(CSRS) v7.0 velocity grid.

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View documentation for Precise Point Positioning

Use of Canadian Geodetic Survey products and data is subject to the Open Government Licence - Canada

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