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OPUS Options

1. Select State Plane Coordinate Zone

OPUS will return the State Plane Coordinates to your solution.  If you desire another zone please select it from the list.

Select the State Plane Code.   Find Zone

2. Select CORS To Use -- Or Not Use -- As Base Stations

OPUS also allows you to specify CORS that you DO NOT want selected as base stations.

Both of these selection options are made from the "Base Station Choices" list below.
Because the list of available CORS is long, you may select one or more States/Territories to limit the CORS displayed as choices for base stations.

To select multiple states, hold down your keyboard's CTRL key as you choose...

 ...then CLICK this button to limit CORS choices.
Reset page by usng your reload/refresh button.

CORS MAP Click on the map to link to the CORS map for help in selecting your base stations
CORS Choices