Planned August launch rescheduled after failure of American lunar probe on August 17. Inability to complete final tests of the new engines and malfunctions during pre-launch preparations indicated a lot of work had to be done on the new launch vehicle before the first launch could be attempted. References: 5 , 175 .
At its second meeting, STG's New Projects Panel decided that the first major project to be investigated would be the second-generation reentry capsule. The Panel was presented a chart outlining the proposed sequence of events for manned lunar mission system analysis. The target date for a manned lunar landing was 1970. References: 16 .
NASA announced that analysis of Project Mercury suborbital data indicated that all objectives of that phase of the program had been achieved, and that no further Mercury-Redstone flights were planned. References: 18 .
Military-Industrial Commission (VPK) Decree 180 'On the Order of Work on the Soyuz Complex--approval of the schedule of work for Soyuz spacecraft' was issued. References: 474 .
At a third status meeting on LEM-1, Grumman put into effect "Operation Scrape," an effort to lighten that spacecraft by about 57 kg (125 lbs). "Scrape" involved an exchange of parts between LEM-1 and LTA-3. The former vehicle thus would be heavier than the latter; LTA-3, on the other hand, would have the same structural weight as LEMs 2 and forthcoming. References: 16 .
First launch of a Minuteman II from Vandenberg AFB. References: 88 .
Suborbital. References: 5 .
Rendezvoused with comet Halley 3/8/86. Solar Orbit (Heliocentric). PLANET-A (SUISEI). Launch time 2333 GMT. Imaging of the hydrogen coma of Halley's comet by the hydrogen Lyman alpha line. Measurement of the solar wind in the cruising phase and in the vicinity of the comet. Launching organiza tion ISAS. Heliocentric orbit parameters 282 days, inclination 0.888 deg, 151.42 x 100.5 million km (1.0122 x 0.6718 AU). References: 1 , 2 , 5 , 6 .
High resolution photo reconnaissance; returned film in two small SpK capsules during the mission and with the main capsule at completion of the mission. Landed in Russia on December 15, 1999.