Magnetic field model of the AR coronal loops. TRACE 171 Å image at 19:58 UT on 22 October 2003 (left panel). Magnetic field model of AR 10484 including field lines (pink continuous lines), tracing the EUV loops, overlaid on the same TRACE image (right panel). The contours correspond to ±50 G, ±100 G, and ±500 G (magenta for positive and cyan for negative values) and the axes are in Mm. The inclination of the sides of the box (defined in the local frame) indicates that the AR was not at central meridian at that time.