Goodland Surveys Pvt Ltd

DGPS Surveying, Promark-3 Goodland Surveys Uses 4 unit of DGPS for fixing the ground control points.  The instrument and the adopted methodology gives a perfect accuracy standard, as minimum as 1:25000.  (The mentioned accuracy level is between DGPS and Conventional Total Station Traverse, not just between DGPS Observations). We observe with 4 DGPS units, a base and three rovers (or) 2 base and 2 rovers as explained the picture below. Survey in Static Mode, observation for 50 minutes or more time span according to site + satellite position and post processing are required.  GNSS Solutions is a software for downloading the data and Processing the data.  While processing the data to be checked for a triangle closure, data masking and other errors.  If the processing results are up to the standards then the network to be adjusted and results will be given. Between the DGPS points, with a quality total station to be used for traversing. ...

Why to use Plane Coordinates for Surveying " In  geometry , a  coordinate system  is a system which uses one or more  numbers , or  coordinates , to uniquely determine the position of a  point  or other geometric element". ( Wikipedia ) Different Coordinate Systems Surveyors are using different co-ordinate system for different application.  Recent period, every body wants to match the geometry data with Google Earth.  Here, we want to discuss about 'why surveyors follow the plane coordinate system' Plane Coordinate System VS UTM  In order to make the coordinate system usable for engineering projects, the horizontal relationships should be defined as two dimensional on one (mapping) plane. To make the coordinate system usable and to simplify linear measurement, the coordinate system should be rectangular so that equal values measured from a datum axis form a parallel line with that axis. Parallel lines to each of the two axes fo...