Transportowiec dla CSS 29.05. o 12:55:29,373 z Wenchang wystrzelona została RN CZ-7, która wyniosła na orbitę o parametrach: hp=356 km, ha=354 km, i=41,47° statek transportowy
Tianzhou-2.
Połączy się on ze stacją Tiangong 30.05.2021 około 19:35, choć inne źródła twierdzą, że może to nastąpić jeszcze dziś około 20:00.Połączył się on ze stacją
Tiangong w T+08 h 05 min o 21:01.
http://lk.astronautilus.pl/n210516.htm#05Tianzhou-2 launch395 wyświetleń•29 maj 2021
Tianzhou-2 dotarł do chińskiej stacji kosmicznej BY KRZYSZTOF KANAWKA ON 31 MAJA 2021
https://kosmonauta.net/2021/05/tianzhou-2-dotarl-do-chinskiej-stacji-kosmicznej/GLOBALink | China launches cargo spacecraft to dock with space station moduleSource: Xinhua| 2021-05-29 21:58:37|Editor: huaxia
China launched the cargo spacecraft Tianzhou-2 on Saturday, which is scheduled to dock with the space station core module Tianhe to deliver supplies, equipment and propellant.
The Long March-7 Y3 rocket, carrying Tianzhou-2, blasted off from the Wenchang Spacecraft Launch Site on the coast of the southern island province of Hainan, according to the China Manned Space Agency.
China launched its space station core module Tianhe on April 29. The country plans to complete the verification of key technologies and the in-orbit construction of the space station through multiple launches within two years.
Saturday's launch was the first time that the space station cargo transportation system, composed of the Tianzhou spacecraft and Long March-7 rockets, was put into use.
Measuring 10.6 meters in length and with a maximum diameter of 3.35 meters, the Tianzhou-2 cargo ship has a maximum takeoff weight of 13.5 tonnes and carries 6.8 tonnes of goods and materials.
More than 160 large and small packages, including supplies for astronauts and space science equipment, and two tonnes of propellant have been loaded into the cargo freighter, according to the China Academy of Space Technology (CAST).
Lei Jianyu, a designer of Tianzhou-2 at the CAST, said that only two types of cargo spaceships currently in service globally have the maximum carrying capacity of more than 5 tonnes. "China's Tianzhou is one of them, and is at the world-leading level."Produced by Xinhua Global Service
http://www.xinhuanet.com/english/2021-05/29/c_139977757.htmWhat is behind two initial delays in China’s Tianzhou-2 cargo ship launch to space station moduleBy Deng Xiaoci and Fan Anqi Published: May 30, 2021 12:01 AM
(...) Following the announcement of the successful launch, the People's Daily disclosed Saturday that on May 20, within less than four hours of the planned launch, which was planned at around 1:30 am, the ground command center found a parameter indicating pressure levels returning abnormal data, indicating that the rocket could no longer meet the launch requirements.
Research teams then decided, without hesitation, to delay the launch, two hours before the planned schedule.
Research teams were dispatched immediately to check system functions, while the command center prepared for an attempt to recover the mission, which had been set to a day later in the early morning of May 21.
However, after liquid oxygen was refueled eight hours before the scheduled launch time, abnormal signals once again occurred.
Space observers saw the postponement as a normal practice in the aerospace industry and said it showed China is not rushing into anything but keeping a steady pace, and is resolute in preventing any potential risks from going to space. (...)
https://www.globaltimes.cn/page/202105/1224812.shtmlhttps://www.nasaspaceflight.com/2021/05/tianzhou-2-launch/AA (2)
https://www.forum.kosmonauta.net/index.php?topic=4382.msg165756#msg165756https://space.skyrocket.de/doc_sdat/tz-1.htm