| 词条 | DOS-2 |
| 释义 |
| station = DOS-2 | insignia = Salyut_program_insignia.svg | insignia_size = 160px | insignia_caption = | crew = 2 | launch = 29 July 1972 03:21 UTC | launch_pad = LC-81/24, Baikonur Cosmodrome, USSR | mass = 18,425 kg (40,620 lb) | length = 14 m | width = 4.15 m | volume = c.100 m³ (3,500 ft³) | in_orbit = 0 days (Launch failure) | stats_ref = [1][2] | configuration_image = RP1357 p64 Salyut 1.svg | configuration_size = | configuration_caption = Planned orbital configuration of DOS-2 }}DOS-2 designation given to a space station, launched as part of the Salyut programme, which was lost in a launch failure on 29 July 1972, when the failure of the second stage of its Proton-K launch vehicle prevented the station from achieving orbit. It instead fell into the Pacific Ocean. The station, which would have been given the designation Salyut 2 had it reached orbit, was structurally identical to Salyut 1, as it had been assembled as a backup unit for that station.[1] Four teams of cosmonauts were formed to crew the station, of which two would have flown:[1]
Whilst Salyut 1 has been visited by two three-man crews (Soyuz 10 and Soyuz 11), following modifications to the Soyuz 7KT-OK spacecraft (resulting in the new model Soyuz 7K-T) following the deaths of the crew of Soyuz 11, the spacecraft could only carry two cosmonauts, thus DOS-2 would have been manned by two crews of two. Following the loss of the station, the crews were transferred to the DOS-3 programme.[1] References1. ^1 2 3 {{cite book|title=Salyut: The First Space Station|year=2008|publisher=Springer-Praxis|isbn=978-0-387-73585-6|author=Grujica S. Ivanovich}} {{Portal|Soviet Union|Spaceflight}}{{Salyut Program}}{{Space stations}}{{Use British English|date=January 2014}}{{Orbital launches in 1972}}{{DEFAULTSORT:Dos-2}}{{USSR-spacecraft-stub}}2. ^{{cite web|url=http://ston.jsc.nasa.gov/collections/TRS/_techrep/RP1357.pdf|title=Mir Hardware Heritage|author=David Portree|publisher=NASA|year=1995|deadurl=yes|archiveurl=https://www.webcitation.org/5il9QixAg?url=http://ston.jsc.nasa.gov/collections/TRS/_techrep/RP1357.pdf|archivedate=2009-08-03|df=}} 5 : Salyut program|Space stations|Satellite launch failures|1972 in the Soviet Union|Spacecraft launched in 1972 |
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