NASA Logo, National Aeronautics and Space Administration
NASA Space Science Data Coordinated Archive Header

Cosmos 159



The E-6LS was a radio-equipped version of the E-6 used to test tracking and communications networks for the Soviet manned lunar program. The objective of the mission was to acquire data on trajectory measurement techniques for future lunar missions. Cosmos 159 was planned to go into a very high apogee (250,000 km) orbit, but the Blok L upper stage is believed to have cut off too early, leaving the spacecraft in a 350 x 60,637 km orbit with an inclination of 51.8 degrees. The spacecraft was probably used for its original purpose despite the lower orbit. Cosmos 159 reentered the Earth's atmosphere on 11 November 1967.

Alternate Names

  • 02805
  • Cosmos159

Facts in Brief

Launch Date: 1967-05-16
Launch Vehicle: Molniya-M
Launch Site: Tyuratam (Baikonur Cosmodrome), U.S.S.R
Mass: 4490 kg

Funding Agency

  • Unknown (U.S.S.R)


  • Engineering

Additional Information

Questions and comments about this spacecraft can be directed to: Dr. David R. Williams



NameRoleOriginal AffiliationE-mail
Mr. Artem IvankovGeneral
[] NASA Logo -