NACA flight 19. Flight aborted after only 1 cylinder of engine fired. Plane damaged on landing. References: 49 , 97 .

Successful missile test. Missed aimpoint by 336 m. References: 439 .

'The Lundin Committee completed its study of various vehicle systems for the manned lunar landing mission, as requested on May 25 by NASA associate Administrator Robert C. Seamans, Jr. The Committee had considered alternative methods of rendezvous: earth orbit, lunar orbit, a combination of earth and lunar orbit, and lunar surface. Launch vehicles studied were the Saturn C-2 and C-3. Conclusion was that 43,000 kg stage (85% fuel) was needed for a lunar landing mission. The concept of a low- altitude earth orbit rendezvous using two or three C-3's was clearly preferred by the Committee. Reasons for this preference were the small number of launches and orbital operations required and the fact that the Saturn C- 3 was considered to be an efficient launch vehicle of great utility and future growth. References: 16 .

National Bureau of Standards broke ground for new research facility at Gaithersburg, Md., which will include a mega-pound deadweight testing machine to provide measurement standards for multimillion rocket thrust requirements. References: 18 .

Area survey photo reconnaissance satellite. References: 1 , 2 , 5 , 6 , 93 .

Radiation measurements. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). References: 1 , 2 , 5 , 6 .

Department of Defense announced cancellation of the planned Manned Orbiting Laboratory (MOL) program from Space Launch Complex 6 at Vandenberg AFB. The cancellation was expected to save $ 1.5 billion of the projected total $ 3.0 billion program costs. The SLC-6 launch facility at Vandenberg, 90% complete, would be finished and mothballed. MOL reconnaisance systems useful on unmanned satellites would be completed for a total cost of $ 225 million. Ten thousand aerospace workers were laid off as a result of the cancellation. References: 26 .

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

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

Radio Astronomy Explorer; measured galactic, stellar radio noise. Lunar Orbit (Selenocentric). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). References: 1 , 2 , 5 , 6 .

Maritime communications. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). References: 1 , 2 , 5 , 6 .

Military topography satellite; returned film capsule; also performed mapping, geodesy, earth resources; deployed capsule. References: 1 , 2 , 6 .

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

First launch of the heavier, mored advanced CHALET ELINT satellites. (the project was renamed VORTEX when the code name CHALET appeared in the New York Times). References: 1 , 2 , 5 , 6 .

Stationed at 345 deg E. Provision of telephone and telegraph radiocommunications and television broadcasting. References: 1 , 2 , 5 , 6 , 67 , 111 , 274 .

Global Positioning System. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). References: 1 , 2 , 5 , 6 .

After that it was moved several times by the small manipulator arm on Mir to accommodate the addition of the Spektr module to the station and to allow rendezvous with the US Shuttle at Kristall's main docking port. The module was transferred to its final location at the Mir transfer compartment's starboard radial port on July 17, 1995.

A second vehicle to test autonomous parasail spacecraft recovery was fabricated with the same external geometry and weight as Wedge 1. It was dropped from a Cessna U-206 and a Rans S-12 ultralight. A total of 36 flight tests were made, the last taking place on February 12, 1993. These flights verified the manual control and autonomous landing systems of the vehicle. Phase II of the program ran from March 1993 to March 1995, and encompassed 45 flights.

Stationed at 21.5 deg W. Intelsat K is a single spacecraft purchased to meet critical requirements for Ku-band capacity over the Atlantic region, driven primarily by international broadcasters. The satellite was purchased from GE Americom while under construction (as Satcom K4) and required extensive payload modifications. Spacecraft: Based on GE 5000 series bus.3-axis stabilised using magnetotorquers. Hydrazine propulsion system. Two large solar panels with 1-axis articulation provide 4800 W BOL.4 50 Ahr NiH batteries. Payload: 16 Ku-band transponders which can be configured into 32 high quality television channels. Permits access from ground antennas 1.2 meters dia. and smaller. Launch vehicle put payload into geosynchronous transfer orbit with GCS trajectory option. References: 1 , 2 , 5 , 6 , 278 .

Commercial TV. Stationed at 101.0 deg W. References: 2 , 5 , 6 .

Geosynchronous. Stationed over 104.6E References: 4 .

The spacecraft was delivered to its final orbit in a complex series of five engine burns by three rocket stages. The Delta's second stage demonstrated its restart capability in 4 burns: Burn 1 placed the rocket and payload into a low circular orbit; Burn 2 raised the apogee to 1400 km; Burn 3 circularised the orbit at 1400 km. The second stage then separated, and Burn 4 lowered the spent stage's perigee to a low altitude to ensure the stage would decay quickly and not add to the space junk already on orbit. Stage 3 burned once to place the payload and its kick motor into a high 1400 km perigee geosynchronous transfer orbit. The Stage 4 Star 30 apogee kick motor circularised the spacecraft's orbit at geostationary altitude. Geostationary at 0.8 degrees W.