Using an Uncorrected Survey Nail Position in LP360

It is always best practice to submit your static base observation data to an online post-processing service to obtain the position of your base station. However, it is possible to process your data with a survey nail/reference mark for a base station coordinate that has not yet been processed to a corrected position. If a base position is needed to check for a fixed solution in the field, one can extract the average position from the header of the base observation RINEX file.

1. Download the static data from the base station and convert to RINEX using the specific manufacturer's convert to RINEX utility.
2. Open the Rinex file and convert the ECEF XYZ coordinates in the header to Lat/Lon using a converter, such as https://www.oc.nps.edu/oc2902w/coord/llhxyz.htm
   1. Note: The XYZ coordinates in the Rinex header are in meters and this conversion tool requires inputs in kilometers.
3. Manually enter the latitude, longitude, and elevation into LP360 as the base position.

This will not provide good network/absolute accuracy, but it will provide relative accuracy and allow one to perform some quick field checks before the survey has been finalized.