Magnetic Multishot Survey Tool Instrument
At specific points in the well, it is helpful to determine the overall trajectory (Check directional survey calculations excel sheet) in a single survey run (e.g., just before running casing). This is usually done by a Directional Magnetic Multi shot Survey Tool which takes a series of pictures. It also can be dropped from surface or run on W/L.

Magnetic Multishot Survey Tool

A magnetic multi-shot works on the same principle as a magnetic single shot, but has a particular camera unit.
https://www.drillingmanual.com/directional-magnetic-multi-shot-survey-tool/