The first 5-1 aircraft was destroyed on its third glide flight.
Two three-month studies of an unmanned logistic system to aid astronauts on a lunar landing mission would be negotiated with three companies, NASA announced. Under a $150,000 contract, Space Technology Laboratories, Inc., would look into the feasibility of developing a general-purpose spacecraft into which varieties of payloads could be fitted. Under two $75,000 contracts, Northrop Space laboratories and Grumman Aircraft Engineering Corporation would study the possible cargoes that such a spacecraft might carry. NASA Centers simultaneously would study lunar logistic: trajectories, launch vehicle adaptation, lunar landing touchdown dynamics, scheduling, and use of roving vehicles on the lunar surface. References: 16 .
Two experiment booms failed to properly deploy, with one of the booms obscuring a horizon scanner's view of earth. As a result, the spacecraft attitude could not be earth oriented and OGO 1 remained spin stabilized at 5 rpm. Nevertheless, data from all 20 experiments on board was received, although at a 'less than expected capacity' from some of them. Twelve of the experiemnts were particle studies and two were magnetic field studies. In addition, there was one experiment for each of the following types of studies: interplanetary dust, VLF, Lyman-alpha, Gegenschein, atmospheric mass, and radio astronomy. During September 1964, acceptable data were received over 70% of the orbital path. By June 1969, data acquisition was limited to 10% of the orbital path. Spacecraft operation was restricted to Spring and Fall due to power supply limitations. There were 11 such 3-month periods prior to the spacecraft being put into stand-by mode on 25 November 1969. By April 1970 the spacecraft perigee had increased to 46,000 km and the inclination had increased to 58.8 deg. All support was terminated November 1, 1971. References: 1 , 2 , 5 , 6 , 278 .
The objectives, constraints, and guidelines for a second OWS were stated in general terms along the following lines: OWS would reflect the same physical features and capabilities exhibited by the initial Workshop and would use the flight hardware to be procured as backup for the first Workshop missions. Crew complement would consist of three men (at least one scientist astronaut). Operating life would be 12 to 24 months, nominally continuously manned. Orbital altitude would be in the range of 390 to 500 km at an inclination up to 55°. Additional Details: The objectives, constraints, and guidelines for a second Skylab OWS..
Aft fuselage on dock, Palmdale, Enterprise (OV-101) References: 15 .
Third Yantar-2K second generation reconnaissance flight, the first with the new Kondor attitude control system. This system experienced problems and failed on the second day of flight. The spacecraft's destruct package was activated by ground command and the spacecraft was destroyed on 6 September 1975 in its second day of flight. References: 1 , 2 , 6 , 69 .
Jupiter flyby 3/5/79, Saturn flyby 11/12/80. Solar system escape trajectory. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). References: 1 , 2 , 5 , 6 .
3rd generation, high resolution photo surveillance; film capsule; maneuverable; also performed earth resources tasks. Investigation of the natural resources of the earth in the interests of various branches of the national economy of the USSR and international cooperation. References: 1 , 2 , 6 .
Replaced Molniya 1-57. Operation of the long-range telephone and telegraph radio communications system in the USSR; transmission of USSR Central Television programmes to stations in the Orbita network. References: 1 , 2 , 5 , 6 .
First Titan II standard launch vehicle (SLV), a refurbished and modified Titan II ICBM, launched from Vandenberg AFB. References: 88 .
Stationed at 140 deg E. GMS-4 (Himawari-4). Improvement of meteorological observation. Development of meteorological satellite technology. Launch vehicle H-I (H20F). Launching organization NASDA. Launch time 1911 GMT. References: 1 , 2 , 5 , 6 .
Manned two crew. Mir Expedition EO-05. Docked with Mir 8 September. Transported to the Mir orbital station a team consisting of A S Viktorenko, commander of the spacecraft, and A A Serebrov, on-board engineer, to carry out scientific and technological research and experiments. Flight cost 80 million rubles. Expected return 25 million rubles net profit. References: 1 , 2 , 6 , 51 .
Sirius Radio's Sirius 2 was launched into a 144 x 168 km x 64.8 deg parking orbit. The Blok DM3 stage then made two burns to deliver Sirius 2 to an elliptical 6192 x 47057 km x 63.4 deg orbit. The was to provide digital radio broadcasts to mobile users in North America. Stationed at 64 deg W.