Order-sorting image_Mrk 421_obsid_27706 Dispersion coordinates field image_Mrk 421_obsid_27706 Sky field image_Mrk 421_obsid_27706 Source region detail images_Mrk 421_obsid_27706 Light curve_Mrk 421_obsid_27706 Flux spectrum (1)_Mrk 421_obsid_27706 Flux spectrum (2)_Mrk 421_obsid_27706 Counts spectrum_Mrk 421_obsid_27706 Flux Preview_Mrk 421_obsid_27706