| 词条 | Zond 6 |
| 释义 |
| name = Zond 6 | names_list = Soyuz 7K-L1 s/n 12 | image = Zond L1 drawing.png | image_caption = | image_alt = | image_size = 125px | mission_type = Planetary Science | operator = Lavochkin | Harvard_designation = | COSPAR_ID = 1968-101A | SATCAT = 03535 | website = | mission_duration = {{age in days|1968|11|10|1968|11|17}} days | distance_travelled = | orbits_completed = | suborbital_range = | suborbital_apogee = | spacecraft = | spacecraft_type = | spacecraft_bus = | manufacturer = NPO Energia Company {{citation needed|date=August 2016}} | launch_mass = {{convert|5375|kg|abbr=on}} | BOL_mass = | landing_mass = | dry_mass = | payload_mass = | dimensions = | power = | launch_date = {{start date|1968|11|10|19|11|31|7=Z}} | launch_rocket = Proton-K/11S824 | launch_site = Baikonur 81/26 | launch_contractor = | deployment_from = | deployment_date = | entered_service = | disposal_type = Crash landed | deactivated = | destroyed = | last_contact = | recovery_by = | recovery_date = | decay_date = | landing_date = {{end date|1968|11|17}} | landing_site = Kazakhstan, USSR
| programme = Zond | previous_mission = Zond 5 | next_mission = Zond 1969A | insignia = | insignia_caption = | insignia_alt = | insignia_size = |instruments_list= |name1=cosmic ray and micrometeoroid detectors |name2=photography equipment |name3=biological payload }} Zond 6, a formal member of the Soviet Zond program and unmanned version of Soyuz 7K-L1 manned moon-flyby spacecraft, was launched on a lunar flyby mission from a parent satellite (68-101B) in Earth parking orbit. The spacecraft, which carried scientific probes including cosmic ray and micrometeoroid detectors, photography equipment, and a biological payload (flies, bacteria and turtles), was a precursor to a manned circumlunar flight which the Soviets hoped could occur in December 1968, beating the American Apollo 8. However, after orbiting the Moon Zond 6 crashed on its return to Earth due to a parachute failure. MissionZond 6 was the official designation for Soyuz 7K-L1 s/n 12. It was supposed to photograph the Moon in colour and in black and white from 8000 km and 2600 km ranges, then return to Earth, landing at Tyuratam only 16 km from the launch pad. It had been a long and difficult road to develop the L1 guidance system, but it worked perfectly that time. Zond 6 flew around the Moon on 14 November 1968, at a minimum distance of 2420 km. Photographs of the lunar near side and far side were obtained with panchromatic film. Each photo was {{convert|5|by|7|in|mm|abbr=on}}. Some of the views allowed for stereo pictures. The photos were taken from distances of approximately 11,000 km and 3300 km. However, only one negative was recovered from the camera container. Zond 6 used a relatively uncommon technique called "skip reentry" to shed velocity upon returning to Earth. A few hours before reentry, on 17 November 1968, a faulty O-ring rubber gasket caused the cabin to depressurise, killing all the animal test subjects aboard. Zond 6's parachutes also deployed too early and it crashed in Kazakhstan, near the designated landing area. For propaganda reasons the Soviets claimed the flight was a success. A State Commission investigating the crash later determined that the coronal discharge effect which caused the parachute to jettison would only occur at the 25 mm capsule pressure. If the capsule had been completely depressurised to a high vacuum, the accident would not have occurred. Details
See also{{Portal|Spaceflight}}
External links
7 : Missions to the Moon|Zond program|1968 in the Soviet Union|Spacecraft launched in 1968|Life in space|Lunar flybys|Animals in space |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。