Аннотация:The data of the MAIN (Multiscale Aurora Imaging Network) auroral cameras located in Apatity and all-sky camera in Lovozero observatory have been used to triangulate auroral structures. Two pairs of cameras are possible to employ: i) narrow (18°) field-of-view cameras with ~4 km distance between them and ii) two all-sky cameras which are ~86 km spaced. Triangulation abilities and discrepancies are tested by events of satellite flashes and meteor tracks. The results are compared with previous findings and theoretical estimations.