Status on the map view

Top  Previous  Next

GPS status information on the map view / estimated hRMS positional accuracy

GNSS_solution_type_mapview estimated_hrms

 

524245.29 - Current Easting coordinate

139257.86 - Current Northing coordinate

12(8GPS/8GLO) - Number of used satellites (number of viewable GPS/GLONASS satellites) of the current position

 

PDOP2.9p F - PDOP value of the current position; F - Solution type of the current position

 

Solution types on the map view:

 

A - Autonomous solution

D - DGPS corrected solution

F - Floated RTK solution

R - Fixed RTK solution

 

Position accuracy on NMEA based GNSS receivers:

When the software connected to the receiver and the NMEA GST sentence is available on the device, the GPS status area displays two position accuracy values: the horizontal and the vertical accuracy of the current GNSS position.

 

hRMS=0.06m - horizontal root mean square positional accuracy

~hRMS - estimated hRMS positional accuracy displays based on vRMS = ~1.5 x hRMS when the value of the hRMS cannot be calculated by the NMEA GST sentence

 

vRMS=0.40m - vertical root mean square positional accuracy

 

Position accuracy on Trimble (Pathfinder Tools SDK based connection: SiRF or TSIP protocol) GNSS receivers:

 

Estimated accuracy on Trimble devices

ESA_PPA-on_Trimble_commented

 

As you log features, the GPS status area displays a value in the Estimated Accuracy (ESA) that provides information about the accuracy of the current GNSS position.

 

The estimated accuracy value may be:

ESA: the estimated accuracy of the current GNSS position

PPA: the predicted accuracy after postprocessing the current GNSS position

 

k-tip-iconThe value shown depends on several factors, including satellite geometry and the type of Trimble GNSS receiver that is connected.

 

To show the predicted postprocessed accuracy (PPA), there must be a vector layer open and the software must be logging GNSS positions. The predicted postprocessed accuracy is a

prediction of the accuracy that will be achieved after postprocessing. When logging H-Star or carrier data, the predicted postprocessed accuracy value applies to all the positions collected since you achieved lock on the required minimum number of satellites. For all other Trimble receivers, this value applies only to the current position. The predicted postprocessed accuracy has a 68% confidence level, which means that 68% of the time the postprocessed position will be within the predicted postprocessed accuracy value shown when the position was collected.

 

Background colour of the status information:

 

Red: Indicates that the GPS/GNSS quality does not correspond to the used Quality settings on the Settings panel > GPS tab or fix position not available

 

Green: Indicates, that the current solution type is an autonomous solution

 

Blue: Indicates, that the current solution type is DGNSS solution
 

Yellow: Float RTK

 

Pink: Fix RTK