SGP/XSAPR/I6 - Azimuthal Drift
The azimuth and elevation position were drifting over time. The position reported in the files for the radar is not accurate and has an offset in azimuth at times. There are periods in the data where the offset is constantly changing from scan to scan.
The data can still be used but the end user has to determine the offset by comparing with other radar and correct for the position.