Any idea what C-FXAZ is up to?

This place has been flying almost exclusively east west patterns for weeks now in Florida. He is also flying very low, less than a thousand feet usually. Is this some sort of optical scanning? Many of these tracks are extremely close together, but the grouping isn't comprehensive. I also thought his altitude was wrong on flight radar but he flew over me recently and I was surprised at how low he actually was. Sometimes he is being shown as less than 300 feet.

This place has been flying almost exclusively east west patterns for weeks now in Florida. He is also flying very low, less than a thousand feet usually. Is this some sort of optical scanning? Many of these tracks are extremely close together, but the grouping isn't comprehensive. I also thought his altitude was wrong on flight radar but he flew over me recently and I was surprised at how low he actually was. Sometimes he is being shown as less than 300 feet.