From Wikipedia, the free encyclopedia
GPS·C, short for GPS Correction, is a Differential GPS data source for most of Canada maintained by the Canadian Active Control System, part of Natural Resources Canada. When used with an appropriate receiver, GPS·C improves real-time accuracy to about 1-2 meters, from a nominal 15 m accuracy.
Real-time data is collected at fourteen permanent ground stations spread across Canada, and forwarded to the central station, "NRC1", in Ottawa for processing.
GPS·C information is currently broadcast Canada-wide on MSAT by the CDGPS, short for Canada-Wide DGPS Correction Service. CDGPS requires a separate MSAT receiver, which outputs correction information in the RTCM format for input into any suitably equipped GPS receiver. The need for a separate receiver makes it less cost-effective than solutions like WAAS or StarFire, which receive their correction information using the same antenna and receiver.
CDGPS Reference Stations[1]
| Station name |
Location |
Operational Date |
Coordinates |
| ALBH |
Canadian Forces Base, Esquimalt, British Columbia (near Victoria, British Columbia) |
May 1992 |
48°23′23.2″N, 123°29′14.8″W |
| ALGO |
Algonquin Space Complex, Algonquin Provincial Park, Ontario |
January 1991 |
45°57′20.8″N, 78°4′16.9″W |
| CHUR |
Geological Survey of Canada regional seismic station, Churchill, Manitoba |
April 1993 |
58°45′32.6″N, 94°5′19.4″W |
| DRAO |
Dominion Radio Astrophysical Observatory, Penticton, British Columbia |
February 1991 |
49°19′21.4″N, 119°37′27.9″W |
| EUR2 |
New Environment Canada Weather Station building, Eureka, Nunavut |
October 9, 2005 |
79°59′20.2″N, 85°56′15.2″W |
| FRDN |
Hugh John Fleming Forestry Complex, near the University of New Brunswick in Fredericton, New Brunswick |
February 2003 |
45°56′0.6″N, 66°39′35.6″W |
| HLFX |
Bedford Institute of Oceanography, Halifax, Nova Scotia |
December 19, 2001 |
44°41′0.7″N, 63°36′40.6″W |
| NRC1 |
Institute for National Measurement Standards, National Research Centre, Ottawa, Ontario |
April 1995 |
45°27′15.0″N, 75°37′25.8″W |
| PRDS |
Dominion Observatory in Priddis, Alberta (near Calgary, Alberta) |
January 7, 1997 |
50°52′16.8″N, 114°17′36.5″W |
| SCH2 |
Transport Canada radio telecommunication facility, Schefferville, Quebec |
June 29, 1997 |
54°49′55.5″N, 66°49′57.4″W |
| STJO |
Geological Survey of Canada (NRCan) geomagnetic observing station, St. John's, Newfoundland |
May 1992 |
47°35′42.8″N, 52°40′39.9″W |
| WHIT |
Whitehorse, Yukon |
June 1996 |
60°45′01.8″N, 135°13′19.5″W |
| WINN |
NavCanada Winnipeg Area Control Centre building, Winnipeg, Manitoba |
January 9, 1997 |
49°54′02.1″N, 97°15′34.1″W |
| YELL |
Yellowknife, Northwest Territories |
January 1991 |
62°28′51.2″N, 114°28′50.4″W |
[edit] External links
[edit] See also
[edit] References
- ^ Active Control Point Stations. Retrieved on 2006-11-27.
