| Canadian Spatial Reference System |
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Natural Resources Canada > Earth Sciences Sector > Priorities > Knowledge-based services > Canadian Spatial Reference System
Canadian Spatial Reference System Products
- Active Control Point (ACP) Observational Data
ACP observational data consist of dual-frequency calibrated satellite code and carrier phase observations from
continuous tracking of GPS satellites at 30-second intervals. Data are archived daily in the RINEX
format version 2. (43 stations)
- GPS Satellite Ephemerides
GPS satellite ephemerides are computed from the data collected at the Canadian stations augmented by globally distributed stations. Data are
archived daily in the SP3 format.
- SLIM - Single-Layer Ionospheric Model
Daily global ionospheric grid following IGS specifications.
Note: GSD stopped producing a SLIM - Single-Layer Ionospheric Model in the spring 2003. Historical data available from December 1, 1999 to April 19, 2003.
- Canadian Base Network (CBN)
The Canadian Base Network is a 3-D network of monumented survey control in the Canadian Spatial Reference System - NAD83CSRS. (155 stations)
- GPS·H - GPS height transformation.
- NTv2 - National transformation software, between the NAD27 and NAD83.
- GSRUG - UTM to/from geographic coordinate conversion.
- INDIR - Direct inverse computation.
| CSRS - Point Positioning Service |
- CSRS - Precise Point Positioning (PPP) - provides precise GPS coordinates consistent with the Canadian Spatial Reference System (CSRS) and the International Terrestrial Reference Frame (ITRF).
- Physical
- EDM - precise standard measurements at 44 calibration baselines sites across Canada.
- GPS - 15 GPS Validation Networks (GPS Basenets) sites across Canada.
- Documented
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