Launched 12:40 local time. Reached 161.9 km. Carried cosmic radiation, ionosphere (Naval Research Lab); and biological (Harvard) experiments for Applied Physics Lab, John Hopkins University.

Preliminary studies were completed by C. E. Brown, W. J. O'Sullivan, Jr., and C. H. Zimmerman at the Langley Aeronautical Laboratory relative to the study of the problems of manned space flight and a suggested test vehicle to investigate these problems. One of the possibilities considered from the outset of the effort in mid-1952 was modification of the X-2 airplane to attain greater speeds and altitudes of the order of 200,000 feet. It was believed that such a vehicle could not only resolve some of the aerodynamic heating problems, but also that the altitude objective would provide an environment with a minimum atmospheric density, representing many problems of outer space flight. However, there was already a feeling among many NACA scientists that the speed and altitude exploratory area should be raised. In fact, a resolution to this effect, presented as early as July 1952, stated that '. . . the NACA devote . . . effort to problems of unmanned and manned flights at altitudes from 50 miles to infinity and at speeds from mach 10 to the velocity of escape from the earth's gravity.' The Executive Committee of NACA actually adopted this resolution as an objective on July 14, 1952. References: 483 .

AF flight 15. Date estimated. References: 49 , 97 .

Day airglow research. Launched at 1756 local time. Reached 128.8 km.

By using the development model of the Mercury contour couch designed by Maxime A. Faget and associates, Carter C. Collins withstood a 20g load on the centrifuge at Johnsville, Pennsylvania. This test proved that the reentry accelerations of manned space flight could be withstood. References: 483 .

Letter Contract NASA 1-430 was awarded to the Western Electric Company for construction of the Mercury tracking and ground instrumentation system. References: 483 .

First successful flight of series production model.

At the request of NASA Hq, MSC contracted with North American to determine what engineering modifications to the basic Apollo spacecraft would be required to extend that vehicle's mission capabilities to a 100-day orbital lifetime. Additional Details: Modifications to the basic Apollo spacecraft to extend capabilities to a 100-day orbital lifetime..

Suborbital. References: 5 .

In response to a request from NASA Headquarters, Gemini Program Office (GPO) provided a study for Gemini missions beyond the 12 originally planned. 'The Advanced Gemini Missions Conceptual Study' described 16 further missions, including a space station experiment, a satellite chaser mission, a lifeboat rescue mission, and both a circumlunar and lunar orbiting mission. On February 28, 1965, GPO reported that a preliminary proposal for Gemini follow-on missions to test the land landing system had not been approved. Spare Gemini launch vehicles 13, 14, and 15 were canceled, and there were no current plans for Gemini missions beyond the approved 12-flight program.

Investigation of the upper atmosphere and outer space. References: 1 , 2 , 5 , 6 , 99 .

The final report on a modular multipurpose space station was delivered to MSC by the Spacecraft Organization of Lockheed-California Company. The concept provided for a sequential evolution of space vehicles ranging from small Apollo-dependent laboratories, through larger, more versatile laboratories, to a semipermanent space station. Initial objectives of the study were to refine and optimize the design of the large orbital research laboratory. Additional Details: Final report on Lockheed modular multipurpose space station..

NASA launched Pegasus 3, third of the meteoroid detection satellites, as scheduled at 8:00 a.m. EST, from Cape Kennedy. As earlier, an Apollo spacecraft (boilerplate 9) served as the payload's shroud. This flight (SA-10) marked the end of the Saturn I program, which during its seven-year lifetime had achieved 10 straight successful launches and had contributed immeasurably to American rocket technology. References: 1 , 2 , 5 , 6 , 16 , 26 , 27 .

High resolution photo reconnaissance satellite; returned film capsule References: 1 , 2 , 6 .

Photographed lunar surface panorama from top hatch of LM. References: 66 .

Area survey photo reconnaissance satellite; returned film capsule. References: 1 , 2 , 6 .

Military-Industrial Commission (VPK) Decree 'On separation of TsSKB from NPO Energia and creation of the Volzhkiy Branch' was issued. After the fall of Mishin, Kozlov was offered the Chief Designer job. He rejected it and Glushko was made head of a reorganised NPO Energia. KB Kozlov itself was made a separate entity with the name of Central Specialised Construction Bureau. References: 474 .

Retrieved and installed material samples. Tested equipment. References: 66 .

Investigation of the upper atmosphere and outer space. References: 1 , 2 , 5 , 6 .

Replaced Molniya 1-59. 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 .

Investigation of outer space. References: 1 , 2 , 5 , 6 , 114 .

Glonass. Testing of components and apparatus of the Glonass global space navigation system being set up to determine the position of civil aircraft and vessels of the merchant marine and fishing fleet. Constellation 3. Put into service on 30 July 1992 and taken out of service on 4 August 1997. References: 1 , 2 , 5 , 6 , 67 , 274 .

Glonass. Testing of components and apparatus of the Glonass global space navigation system being set up to determine the position of civil aircraft and vessels of the merchant marine and fishing fleet. References: 1 , 2 , 5 , 6 , 67 , 274 .

Glonass. Testing of components and apparatus of the Glonass global space navigation system being set up to determine the position of civil aircraft and vessels of the merchant marine and fishing fleet. References: 1 , 2 , 5 , 6 , 67 , 274 .

Military cartographic satellite; returned film capsule. References: 1 , 2 , 6 .