During the late 1980s, a number of Tu-22KDs where rebuilt with an ECM system replacing the tail gun. This comprised the SPS-151, SPS-152 or SPS-153 system in a streamlined fairing.
wearing different Badges, from left: Guard, Excellent aircraft/maintenance and the Russian flag.
The two small domes behind the cockpit are for the BTs63 astro-sextants, used for long-range navigation.
By the mid-1980's, the Soviet Air Force had recognised the inadequacy of the tail gun and began with refitting it by an ECM-system instead. This Tu-22KD is showing its SPS-151 type ECM Tail, maybe a SPS-100 Reseda System active jammer unit.