DGPS Logs 27-28 OCT 2021

[ChrisSmolinski]

I guess Cape Race is SK?

Count    ID   ref1 ref2 kHz   Baud City                           Country              Lat      Lon      km     Deg
229      907  304  305  320.0 200  Richmond, BC                   Canada               49.114   -123.183 3,753  302
5        972  901  902  302.0 200  Miraflores                     Panama               8.993    -79.585  3,425  185
495      971  903  904  307.0 200  Gatun                          Panama               9.261    -79.937  3,398  186
121      946  344  345  299.0 200  Rigolet, NL                    Canada               54.25    -58.5    2,127  34 
13043    944  342  343  310.0 200  Cape Norman, NL                Canada               51.509   -55.831  2,091  44 
22190    942  340  341  288.0 200  Cape Ray, NL                   Canada               47.636   -59.241  1,671  52 
11893    925  320  321  313.0 200  Moise, QC                      Canada               50.202   -66.119  1,443  32 
759      934  336  337  307.0 200  Fox Island, NS                 Canada               45.361   -61.097  1,442  59 
25576    936  332  333  319.0 200  Point Escuminac, NB            Canada               47.075   -64.8    1,278  46 
3048     937  330  331  298.0 200  Hartlen Point, NS              Canada               44.583   -63.45   1,238  60 
23977    935  334  335  312.0 200  Western Head, NS               Canada               43.993   -64.67   1,124  61 
21524    939  326  327  295.0 200  Partridge Island, NB           Canada               45.239   -66.056  1,085  52 
35571    926  318  319  300.0 200  Riviere du Loup, QC            Canada               47.762   -69.606  1,073  31 
37946    927  316  317  309.0 200  Lauzon, QC                     Canada               46.821   -71.165  920    29 
41529    929  312  313  296.0 200  St Jean Richelieu, QC          Canada               45.324   -73.317  693    24 
17958    918  310  311  286.0 200  Wiarton, ON                    Canada               44.75    -81.117  656    330
31334    919  308  309  306.0 200  Cardinal, ON                   Canada               44.783   -75.417  579    12 

[skeezix]

The October monthly Notice to Mariners was released today and nothing about Cape Race nor DGPS is in it.

However, finally found it in the Navigation Warning (NAVWARN) section:


ID   NW-N-1282-21
Date   2021-10-28 23:20 UTC
Status   Published
Title   DGPS
Areas   East Coast
Categories   DGPS
Description   
CCG DGPS Station Cape Race located at 47 46.00N 053 11.00W on 315 kHz off air as of 282311 UTC Oct 2021.

Position   47° 46.000'N 053° 11.000'W
Charts   4847(NAD83)


Looks like they just found it on the 28th... its been off long before that.

There are two additional notices:

D   NW-P-1423-21
Date   2021-10-29 02:51 UTC
Status   Published
Title   DGPS
Areas   Fraser River
Categories   DGPS
Description   
CCG DGPS Station Richmond located at 49 05.74N 123 10.61W on 320 kHz off air as of 290247 UTC Oct 2021.

Position   49° 05.740'N 123° 10.610'W
Charts   3490(WGS84), 3492(NAD83)


ID   NW-N-1283-21
Date   2021-10-28 23:38 UTC
Status   Published
Title   DGPS
Cancels   NW-N-0129-21
Cancels   NW-N-0411-21
Areas   South Labrador Coast
Categories   DGPS
Description   
CCG DGPS Station Cape Norman located at 52 30.00N 055 49.00W on 310 kHz off air as of 282323 UTC Oct 2021.

Position   52° 30.000'N 055° 49.000'W
Charts   5179(NAD83)


Didn't receive Richmond here last night, but Cape Norman came in with only about 380 decodes (the ionosphere is a little upset, so hard to say if its due to that and/or if the station is on reduced power). 

[ChrisSmolinski]

Thanks for the info. I wonder if they are informally shutting down DGPS?

[skeezix]

The Canadian Positioning, Navigation and Timing Board Update  (September 20, 2021)

The future of the CCG Differential Global Positioning System (DGPS)

• Due to its age and the needs for replacement, the CCG conducted an options analysis for the future of the CCG DGPS service.

• CCG will be discontinuing the Canadian DGPS by the end of 2022. All 19 sites will be shut down simultaneously.

• Between now and Fall of 2022, CCG will continue to inform stakeholders and communicate in preparation for the shutdown date.


The Canadian PNT Board 4
Lead: Canadian Coast Guard (CCG)
Evaluation of the Wide Area Augment