DPOS versus DPOS from LS

[Mark Wheeler]

Why do the results sometime differ several hundreths when the same Base file is processed through sending the file to DPOS from a PC and sending the file and collected points directly from the LS? Typically I wait a day and then send the files. In this instant I sent the Base file to DPOS from PC and then minutes later from the LS. Are both files processed with Justin?
Mark

 

[Matt Johnson]

Can you share the reports?

 

[Mark Wheeler]

Matt, MN12DPOS fromPC.PDF is standard DPOS PP with Justin. 20210213-15.53.36_00479 after PP from LS.png is screen shot of Cors processed from LS. The other three are th DPOS report in meters from LS to Server. The converted metric values are very close to the PC DPOS report (possibly Meters to Feet Rounding), but the screen shot screen shot of the CORS processed is several hundreths different for N,E,Elev. Not sure what is up.
Mark

 

[Matt Johnson]

If you look at the reports you will see both solutions were processed with the same version of DPOS. The only difference I see is that J-Field DPOS upsampling the data whereas the web version isn't.

but the screen shot screen shot of the CORS processed is several hundreths different for N,E,Elev.

I would check the input epoch of your coordinate system. It may not be 2010.

 

[Mark Wheeler]

Matt,
The two DPOS reports pretty much agreed, but the value returned to the LS was a little different. I will check the input epoch for the coordinate system

 

[Mark Wheeler]

Checked and Coordinate System uses Epoch 2010. Seems there is a difference between th DPOS report sent back (in meters) and the N,E,Z reported on the LS in the PDF above. Could checking "Known Base" during collection have any effect?

 

[Adam]

If you check known base it will hold the coordinates used when the base was started instead of shifting to the cors position automatically after DPOS.

 

[Matt Johnson]

Checked and Coordinate System uses Epoch 2010. Seems there is a difference between th DPOS report sent back (in meters) and the N,E,Z reported on the LS in the PDF above. Could checking "Known Base" during collection have any effect?

Can you share the project archive?

 

[Mark Wheeler]

Matt, I sent archived zip file 21-124McCary_210216 18-11-32.zip. Unit 479. No idea if it arrived.
Mark

 

[Matt Johnson]

Matt, I sent archived zip file 21-124McCary_210216 18-11-32.zip. Unit 479. No idea if it arrived.
Mark

Sorry, I do not have access to projects sent to the support server. If you want you can use TLS2TLS to send it to me at 00210 or post a link to it on this forum.

 

[Michael Stazhkov]

Sorry, I do not have access to projects sent to the support server. If you want you can use TLS2TLS to send it to me at 00210 or post a link to it on this forum.

I din't find the project on the support server also.

 

[Mark Wheeler]

I sent the file (first time using TLS2TLS) on2/19/21.