Order-sorting image_Mrk 421_obsid_27184 Dispersion coordinates field image_Mrk 421_obsid_27184 Sky field image_Mrk 421_obsid_27184 Source region detail images_Mrk 421_obsid_27184 Light curve_Mrk 421_obsid_27184 Flux spectrum (1)_Mrk 421_obsid_27184 Flux spectrum (2)_Mrk 421_obsid_27184 Counts spectrum_Mrk 421_obsid_27184 Flux Preview_Mrk 421_obsid_27184