MKN421: June - July fading

The blazar MKN421 (Markarian 421) remarkably faded since the end of June. The level of faintness was only attained in early 1996 (vsnet-campaign-blazer 15). D. Rodriguez reported his CCD observation of V=13.5mag, which confirmed the tendency (vsnet-campaign-blazer 16). The fading trend was interrupted around July 20 (vsnet-campaign-blazer 39, 31) and turned into recovery (13.4mag on July 21) (vsnet-campaign-blazer 42).