Soyuz 15 was a human spaceflight mission of the Soviet Union. It was to have been the second mission to the Salyut 3 space station with presumably military objectives. August 26 is the 238th day of the year in the Gregorian Calendar (239th in leap years). ... 1974 is a common year starting on Tuesday (click on link for calendar). ... UTC also stands for the University of Tennessee at Chattanooga Coordinated Universal Time or UTC, also sometimes referred to as Zulu time, the basis for civil time, differs by an integral number of seconds from atomic time and a fractional number of seconds from UT1. ... The Baikonur Cosmodrome (Russian: Космодром Байконур, Kosmodrom Baykonur), also called Tyuratam, is the worlds oldest and largest working space launch facility. ... August 28 is the 240th day of the year in the Gregorian Calendar (241st in leap years), with 125 days remaining. ... 1974 is a common year starting on Tuesday (click on link for calendar). ... The Soyuz human spaceflight programme was initiated in the early 1960s as part of the manned lunar programme that was intended to put a Soviet cosmonaut on the Moon. ... Human spaceflight is space exploration with a human crew, and possibly passengers (in contrast to dog-manned space missions, which are remotely-controlled or robotic space probes). ... Salyut 3 was launched on June 25, 1974. ... A space station is an artificial structure designed for humans to live on in outer space. ...

Although the spacecraft arrived at the station successfully, cosmonauts Lev Demin and Gennadi Sarafanov were unable to dock because of a fault in the automated docking system. Without sufficient fuel for prolonged attempts at manual docking, the mission had to be abandoned. Lev Stepanovich Demin (Russian: Лев Степанович Дёмин; born January 11, 1926 in Moscow, died December 18, 1998 in Zvyozdny Gorodok) was a Soviet cosmonaut who flew on the Soyuz 15 mission. ... Gennadi Vasiliyevich Sarafanov (Russian: Геннадий Васильевич Сарафанов; born January 1, 1942 in Sinenkie) was a Soviet cosmonaut who flew on the Soyuz 15 mission. ...

It was later claimed by Soviet authorities that no docking had been intended and that the flight had only been undertaken to devlop techniques for maneuvering near the space station.

The faulty equipment was redesigned before the next attempt was made.

Crew

• Lev Demin (1)
• Gennadi Sarafanov (1)

Lev Stepanovich Demin (Russian: Лев Степанович Дёмин; born January 11, 1926 in Moscow, died December 18, 1998 in Zvyozdny Gorodok) was a Soviet cosmonaut who flew on the Soyuz 15 mission. ... Gennadi Vasiliyevich Sarafanov (Russian: Геннадий Васильевич Сарафанов; born January 1, 1942 in Sinenkie) was a Soviet cosmonaut who flew on the Soyuz 15 mission. ...

Mission Parameters

• Mass: 6760 kg
• Perigee: 173 km
• Apogee: 236 km
• Inclination: 51.6°
• Period: 88.5 min

Crew Yuri Artyukhin (1) Pavel Popovich (2) Mission Parameters Mass: 6,800 kg Perigee: 195 km Apogee: 217 km Inclination: 51. ... The Soyuz human spaceflight programme was initiated in the early 1960s as part of the manned lunar programme that was intended to put a Soviet cosmonaut on the Moon. ... Soyuz 16 was a test flight in the project to achieve a joint Soviet-US space flight that resulted in the Apollo-Soyuz mission. ...