Example of magnetic field lines integration for some jets with moments ĝ₂ = −0.8 and ĝ₃ = 1.3. The starting points of the integration are at 1 R_⊙ from EUVI observations and represented as coloured dots. The integrations are made up to 2 R_⊙ and the results (void squares) are compared with the corresponding jet positions as observed with COR1 (plus signs). For some events, especially those at lower latitudes, the integration can result in a closed line (purple dashed line).