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Flight Spans GPS Midnight

Scenario Running ASPSuite to process a flight that spans GPS Midnight produces an informational message titled, “Flight Spans GPS Midnight”, when attempting to auto-download the ephemeris file. Explanation This informational message explains to the user why when performing the auto-download the alternate navigation file will be left blank. It should not affect the processing as…

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Elevation error troubleshooting

There are several reasons that a point cloud or ortho data may not align with checkpoints to the expected accuracy. Below is a list of common reasons that this might occur. Base station position In PPK processing, the base station position, antenna height and antenna calibration file must be correct. Please review the Base Station…

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RTK Flight Type in ASPSuite

With the release of ASPSuite version 2019.1, RTK mode has been added as a Flight Type on the New Project/ Flight Wizard. This new tool was developed to allow Phantom 4 RTK users, who’s images have been corrected by the D-RTK 2 base station or VRS, to convert image heights from ellipsoid to orthometric height…

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Checking the Number of Valid Satellites Used by ASPSuite.

ASPSuite has the ability to filter out GNSS satellites based on elevation mask, and Signal-to-noise ratio (SNR) mask. Before reprocessing with increased mask settings, it is good practice to check the number of valid satellites used in the solution. The following steps describe the process for checking the number of valid satellites used in the…

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Metashape: Failed to Build Orthomosaic

Problem: When processing in Agisoft’s Metashape or PhotoScan, the Build Orthomosaic step fails. The details may contain a message, “Error: Can’t write file: There is not enough space on the disk (112). Probable Resolution #1: Check the disk space to ensure there is sufficient space to complete the task. If not, remove unnecessary files and try building the…

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ASPSuite Error: Warning! The selected Navigation File does NOT cover the same time period as the selected Rover SBF File.

Problem: When auto-downloading the ephemeris and alternate navigation files, the alternate navigation file does not cover the same time period as the flight. This usually occurs soon after the flight, when the alternate navigation file has not been updated on the FTP site where this file is downloaded. It can also happen when the flight…

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Base Station Manager in ASPSuite

Base Station Manager was added to ASPSuite in version 2019.1. It allows the user to store a base station coordinate for use with later projects. The following steps describe the process for storing a base coordinate from the base station dialog (step 4 of 6) when creating a new project, or the base station tab…

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LP360 Error: A target vertical coordinate system was specified, but the source vertical coordinate system was not.

This error occurs when attempting to use the Reproject/Shift LAS point cloud task in LP360, and the vertical coordinate system of the input files (source) have not been defined. The following steps explain how to define the vertical coordinate system of the source files.

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Determining the Correct Base Antenna Calibration File

There are many different manufacturers and types of base stations so it is important to choose the correct antenna calibration file for ASPSuite processing. This is a quick guide to help determine the correct antenna calibration file. First, open up a RINEX file derived from the base. In the header of the RINEX file, there…

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