Back in the mid 1950s there was made a decision in the USSR to develop new radar stations not as mobile, but stationary ones. It allowed to create big antennas, not to save on equipment and its dimensions,
and to protect this equipment from frost and heat. One of such radar stations was named Lena M or P-70. The station was built in 1960-68 for operation on the long frontiers of the country.
Il-976 SKIP is an aircraft command and tracking station. When ballistic and cruise missiles are tested it's necessary to fix performance of their systems. This task is complicated - if something goes wrong a missile cannot force-land like an aircraft and engineers have to inspect the wreckage trying to find the reason of the crash. For the same reason an airborne laboratory cannot be mounted on a missile -
if the missile explodes all recorded data would be lost. The only way out is to equip the missile with a transmitter and monitor operation of its systems by means of telemetry. Ground stations and special aircrafts are used to receive such data. Il-976 was designed in the 80s, it represents a hybrid of Il-7бMD and A-50. Some pictures of the aircraft are inside the post.