The lightcurves of sources found at the IMA step are created at the LCR level of the jemx_science_analysis script. However, this step is omitted by default. LCR step should be used only for the cases where time bins shorter than the duration of one ScW are necessary. If the ScW time scales are sufficient, better fluxes are obtained from the IMA step (see section 6.8.5). The file jmx2_srcl_res.fits serves as an input catalog for the lightcurves extraction in each ScW. It is important to note, however, that source positions found by j_ima_iros will differ slightly from ScW to ScW. The deviation of the found source position from the true one will lead to an error in the determination of the source lightcurve. To avoid this difficulty it is recommended to create a ``user catalog'' (in the same way as you did for the spectral extraction) with the names and positions of the sources for which you want to extract the lightcurves (see section 9 to force usage of the catalogue coordinates).