Accession Number : AD0702006

Title :   THE OPERATION OF MOLYNIYA COMMUNICATIONS SATELLITES.

Descriptive Note : Technical rept.,

Corporate Author : ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (ENGLAND)

Personal Author(s) : Allan,R. R.

Report Date : NOV 1969

Pagination or Media Count : 23

Abstract : The U.S.S.R. has launched to date (October 1969) a total of twelve Molniya communications satellites, together with three objects in similar orbits designated as Cosmos satellites. These are in highly eccentric 12-hour orbits at an inclination of about 65 deg with apogee in the northern hemisphere near the northern apex. Such satellites are subject to resonance effects due to the longitude-dependence of the geopotential in much the same way as are synchronous satellites, and there is a stable configuration in which the apogees occur at particular longitudes relative to the earth. We conclude that the U.S.S.R. eventually established a viable system of communications satellites giving nearly complete 24-hour coverage of the Soviet Union at the end of 1968 with the trio Molniya 1H, 1J and 1K. (Author)

Descriptors :   (*COMMUNICATION SATELLITES(ACTIVE), USSR), SPACE COMMUNICATIONS, ELLIPTICAL ORBIT TRAJECTORIES, INCLINED ORBIT TRAJECTORIES, GREAT BRITAIN

Subject Categories : Unmanned Spacecraft
      Spacecraft Trajectories and Reentry
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE