提供永久免费的API接口，查看更多API接口，如果您有其他免费API资源，请联系我们，造福人类。

定制开发，免费评估，免费咨询，价格便宜，售后保障，前往开发服务中心或联系开发客服中心

Share the QR code < / P > < p > with wechat scanning code to friends and circles of friends < / P > < p > (observer online news) after safely spending a month's sunburn, the Chinese Mars probe "tianwen-1" will resume scientific exploration, and will enter the remote sensing orbit in early November to carry out global remote sensing exploration of Mars. While continuing its mission, the Mars rover zhurong operating on the Martian surface will also conduct a test in cooperation with the European Space Agency's Mars Express probe < p > on October 27, the space operations center of the European Space Agency announced on social media that the "Mars Express" probe of the European Space Agency and China's "zhurong" Mars rover will conduct five communication tests in November and send back data to the earth. This is also the first time in a decade that ESA has had the opportunity to actually test the data blind receiving capability of Mars Express in Mars orbit < p > according to a document issued by the space operations center of ESA, the windows of the five communication tests were selected through coordination between the two teams. The "Mars Express" team determined the time period for the orbiter to fly over the landing area of zhurong, and then the "zhurong" team selected five windows suitable for the mission of the Mars rover < p > screenshot of ESA space operations center < / P > < p > when the rover sends back a large amount of scientific data obtained on the Martian surface to the earth, it usually carries out relay communication with the Orbiter on Mars first, and then sends it to the earth through the orbiter ground communication. For example, China's tianwen-1 orbiter has relay communication capability to send back the scientific data obtained by zhurong to the earth < p > in this test with ESA, the Mars Express probe of ESA in Mars orbit will play the role of relay communication, receiving data from zhurong in a communication window of about 10 minutes and sending it back to earth. However, because the communication systems between zhurong and Mars Express are not compatible, the communication test process will be slightly different < p > according to ESA, generally speaking, when the orbiter flies over the ground patrol, it will send a "hello" signal to the patrol and communicate between initiators; The inspector will then send a response signal to let the surround know that the signal has been received and start exchanging data or receiving instructions < p > however, in this communication test, zhurong could not receive the signal frequency from Mars Express and could not respond to the "call" of the latter. Therefore, Mars Express will one-way "blind receive" the data sent by zhurong this time < p > on June 11, 2021, the "zhurong" Mars rover took a group photo with the lander on the Utopia plain on the surface of Mars < / P > < p > ESA said that when the Mars Express flew over the area where zhurong was located, it would turn on the radio listening equipment. Once the signal sent by zhurong was detected, it would lock it immediately and start recording data. Both parties will conduct 5 communication tests, and each communication window lasts about 10 minutes < p > the melacom communication system on Mars Express has the function of detecting specific signals, blind receiving and verifying data at the beginning of design, and has been fully tested on earth. However, due to the landing failure of ESA's Mars Lander, they have never had the opportunity to actually use this function in Mars orbit in the past decade. Therefore, ESA said that the test will be a good opportunity to test the blind reception capability of Mars Express < p > the replica of Beagle 2 lander lost contact during ESA's Mars Express mission in 2003 will be arranged from 20:07 to 20:17 on November 7, Beijing time, from 3:34 to 3:44 on November 17, from 4:27 to 4:37 on November 19, and from 5:20 to 5:27 on November 21, And from 6:13 to 6:22 on November 23 < p > according to the article, the five communication test windows were selected after coordination between the two teams. The Mars Express team first determined the time period for the spacecraft to fly over the landing area of zhurong, and then the zhurong team selected the five windows suitable for the Mars Rover Mission < p > ESA will upload the instructions to Mars Express one or two days in advance before each test. ESA said that in order to better evaluate the performance of the data blind reception function, the data transmission from zhurong to Mars Express will be carried out at a relatively slow speed of 8 kilobytes per second in the first test, and the data transmission speed will be gradually increased to 128 kilobytes per second in the subsequent test < p > ESA predicts that the data sent by zhurong will arrive on earth about two hours after the inter vehicle communication window is closed. Mars Express will relay the received data to the European Space Operations Center in Darmstadt, Germany, and then forward it to Zhu Rong's team for analysis and research < p > with regard to China's international cooperation in space missions, Zhang Kejian, director of the National Space Administration, once said that the National Space Administration is willing to cooperate with developed countries and major space powers, as well as with some developing countries. China is willing to share space technology with other countries to promote global cooperation and development
2023-03-22 10:04:46