| UNAVCO
 


Knowledge Base

Trimble Geomatics Office - How to apply precise orbits in TGO

Using Precise Orbits in Trimble Geomatics Office

Precise ephemeris are calculated and posted on SOPAC 3 weeks after the day the data were collected. They are used with RINEX data in place of the .nav file when cm or better accuracy is required.

  1. Go to the SOPAC Data Archive: http://sopac.ucsd.edu/dataArchive/

  2. Click the link to "SOPAC Data Browsers". Click "Data Archive: Data By Date".

  3. From the dropdown menu select "products".

  4. Select the year and enter the 3 digit day-of-year (DOY--see link in (6), below). Click "Show Data".

  5. Look for files of the type:
    igs[wwwwd].sp3.Z

    Where:
    wwww = GPS week
    d = day of week

    Make sure you get several hours’ worth of ephemeris data before and after your survey time--this may mean retrieving multiple .sp3 files.

  6. Use UNAVCO calendars to convert to GPS week and day:
    http://kb.unavco.org/data/glossary.html#calendar

  7. Unzip the files.

  8. Import the files into TGO: Import > Precise ephemeris files (*.sp3, *.e18) > OK.

  9. Change the survey processing style: Survey > GPS Processing Styles > Edit. Change Ephemeris from "Broadcast" to "Precise".

Attached Files
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Name
Email
Security Code Security Code
Related Articles RSS Feed
Trimble Geomatics Office - Importing RINEX 2.11 data files
Viewed 11751 times since Thu, Jul 7, 2011
Trimble R7/5700 - How to verify receiver tracking using Trimble GPS Configurator software
Viewed 12290 times since Tue, Jan 26, 2010
Trimble Configuration Toolbox (all versions)
Viewed 70276 times since Fri, Sep 24, 2010
Trimble Remote Controller v2.21
Viewed 23194 times since Fri, Feb 6, 2009
Trimble Geomatics Office - How to process fast-static and post-processing kinematic surveys using TGO
Viewed 59556 times since Tue, Jan 26, 2010
Trimble TRIM4000 Download Software for DOS
Viewed 3667 times since Fri, Jul 31, 2009
Trimble GPS Configurator (all versions)
Viewed 42607 times since Fri, Sep 24, 2010
Trimble Geomatics Office - TGO v1.6 Rev.A, April 2002, User Guide
Viewed 3341 times since Fri, Jan 15, 2010
Processing Software Summary - Trimble Geomatics Office
Viewed 12463 times since Thu, Mar 11, 2010
How to download a Trimble receiver using the Trimble rfile program
Viewed 5854 times since Thu, Jul 30, 2009
MENU
 

Last modified: 2019-12-27  16:36:35  America/Denver