> For the complete documentation index, see [llms.txt](https://horus-make-sense.gitbook.io/documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://horus-make-sense.gitbook.io/documentation/legacy/citymapper/post-processing/pospac-mms-workflow.md).

# POSPac MMS - Workflow

## POSPac MMS Workflow

1. Start POSPac MMS.<br>

   ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2Fayd7ygEBJnkCyaoJmwoy%2F0.jpeg?alt=media)
2. Click on 'New Default Project'.<br>

   ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FHsVXT6u2yHThtzJNRPNX%2F1.jpeg?alt=media)
3. Drag the Log file onto the grid in POSPac.\
   Alternatively you can use the 'Import' function of the toolbar to manually import data.\
   \
   If the software asks for the Antenna Type, enter the **Applanix LV59** antenna.\
   You may get an 'IMU Data Continuity error', if this happens please refer to the [page](/documentation/legacy/citymapper/post-processing/resolving-imu-data-continuity-errors.md) on how to resolve this.
4. When the import process is finished, the trajectory will be shown on the grid.<br>

   <figure><img src="https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FrUWvixRoA7AHxCLQmIsf%2Fimage.png?alt=media&amp;token=a7ee895d-0a64-4230-bf39-acde50ddf8e7" alt=""><figcaption></figcaption></figure>
5. Click "Project Settings"<br>

   ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FOH6tmCrHEuVG5GR07yIO%2F3.jpeg?alt=media)
6. Go to "Lever Arms and Mounting Angles"\
   Slide the "Standard Deviation" over to "<3cm"<br>

   ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FEqVYYf6G3hX2KP0spdt3%2F4.jpeg?alt=media)
7. Go to "Export -> Settings"

   Set the Output Format to "Export Horus Format..."<br>

   ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FwGLOGo2fYZQfo07HpcAQ%2F5.jpeg?alt=media)
8. Set the "Output Rate" to "Event 1 Time"<br>

   ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2F1PrigOOpJ11hYKK7DHuF%2F6.jpeg?alt=media)
9. To Edit the Mapping Frame, untick the "Default Mapping frame" box<br>

   ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FPG0XwkpUQMh7LrakPP1D%2F7.jpeg?alt=media)
10. Now you can click on the "Mapping Frame" button<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FBsEHnlVRYKiPDvxZTi10%2F8.jpeg?alt=media)
11. Set the "Datum" to the coordinate system that you would like to export the data to<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FzSR4wbCvG80anjGggTty%2F9.jpeg?alt=media)
12. Click on "OK" to save the changes<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FUMQl7XanfYArasJRACxT%2F10.jpeg?alt=media)
13. Click on "GNSS-Inertial Processor"<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FFR52GfwPzId7cooQEWds%2F11.jpeg?alt=media)
14. Set the "DMI" to "Disabled"<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FSyHtiQLReCh4VMP34UIi%2F12.jpeg?alt=media)
15. Press on the "Run" button to start processing the data<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2Foe0ZXZ4L8rC9UKjwajnx%2F13.jpeg?alt=media)
16. It will first process the Base Station or RTX data and give you some statistics.\
    Review it and press on "OK" to continue<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2F0SxI1A0l7bzTwaV6Ls1t%2F14.jpeg?alt=media)
17. When the processing has finished, a green line will appear on the grid indicating the corrected trajectory
18. To view a graph of the estimated accuracy go to "Reports -> Display Plots"<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2F5VFtEn3OOGI8EyAmTtwS%2F15.jpeg?alt=media)
19. Select the two items on the list to view the accuracy of the processed data<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FmKV2deqbn9blhV51BRIQ%2F16.jpeg?alt=media)
20. To export the data go to "Tools -> Export"<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FxiaTFMarngQXPVJNVomX%2F17.jpeg?alt=media)
21. Define the Export location and name<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2Ft79F9zG7Ut0ilFO4I2Rc%2F18.jpeg?alt=media)
22. Click on "Export" to save the corrected data<br>

    ![](https://3462221526-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FFCe67imy4ipkDut6uMDi%2Fuploads%2FUK4DwatchsDScvnlGNpF%2F19.jpeg?alt=media)
23. Now you are finished and you can continue with the Position Fixer to correct the positions of the recordings