Technology

Nearly a month into orbit, NanoDragon satellite signal has not been received yet


After 22 days of being launched into orbit, the NanoDragon satellite development unit still has not received the NanoDragon satellite signal sent to the ground station.

As VietNamNet reported, the Make in Vietnam satellite called NanoDragon was successfully launched into space on November 9, 2021. However, after nearly a month of separation from the booster, the ground station still has not received the signal of the NanoDragon satellite.

According to satellite development unit, Vietnam Space Center (VNSC – Vietnam Academy of Science and Technology), along with NanoDragon, there are all 9 satellites mounted on Epsilon 5 rocket (Japan). copy) to send into space.

Currently, 7 out of 9 satellites have successfully sent signals to the ground station. The two satellites that have not yet received a signal are the ARICA satellite (Aoyama Gakuin University, Japan) at the 8th position and the NanoDragon satellite, which is at the 9th position when separated from the rocket.

NanoDragon satellite when mounted on Japan’s No. 5 Epsilon rocket.

NanoDragon satellite is the product of the Project “Research, design, manufacture, launch and test operation of nano-sized microsatellites” under the “National Science and Technology Program on space technology at the first stage”. 2016-2020 period”.

NanoDragon satellite has also passed the test rounds in Vietnam and was allowed to send to Japan to participate in JAXA’s planned launch from August 6, 2021.

During the preparation for launch, the NanoDragon satellite passed 4 rounds of launch safety tests of the Japan Aeronautics and Space Administration (JAXA) with many strict standards.

In it, there are important environmental tests such as: 82-hour vacuum thermal environment tests, vibration tests (test for natural frequency, sinusoidal vibration, random vibration) course, sine burst vibration), shock tests and other functional tests.

Nearly a month into orbit, NanoDragon satellite signal has not been received yet
NanoDragon satellite is the research and development result of a group of scientists from Vietnam Space Center (VNSC).

The entire testing process in Japan of the NanoDragon satellite is carried out and closely monitored with representatives from 5 relevant units including VNSC (the place that manufactures the satellite), Kyushu Institute of Technology (where the satellite is tested). ), JAXA (launching agency), HIREC (JAXA’s focal point for launching safety-related activities) and MEISEI (VNSC’s partner company in Japan).

The testing process showed that all the satellite’s indicators met the standards and were allowed to participate in the launch. After being transferred to JAXA on August 17, 2021, 84 days later, the NanoDragon satellite was put into orbit.

During this process, the Epsilon No. 5 rocket carrying the NanoDragon satellite was delayed 3 times on October 1, 2021, October 7, 2021 and November 7, 2021 due to unsuitable weather conditions. On the 4th time, the rocket launch was successful when all 9 satellites were put into orbit.

Nearly a month into orbit, NanoDragon satellite signal has not been received yet
Japan’s Epsilon-5 rocket carrying the “Made in Vietnam” NanoDragon satellite and 8 other satellites successfully launched into orbit on November 9, 2021 (Photo: The Yomiuri Shimbun)

According to the Vietnam Space Center, the NanoDragon satellite has 3 communication lines: the transmission of telemetry data (information about the satellite’s status) from the satellite to the ground in the UHF frequency band, and the control command line. from the ground up in the VHF band and the mission data link from the satellite to the ground in the S band.

Currently, VNSC’s ground station has not received telemetry data transmission in the UHF band, so the detailed status parameters of the NanoDragon satellite have not been determined. At the present time, engineers of the Vietnam Space Center are still continuing their efforts to find the signal of the NanoDragon satellite.

Trong Dat

Check out the projects to conquer space by satellite Make in Vietnam

Check out the projects to conquer space by satellite Make in Vietnam

The appearance of Make in Vietnam satellites in the past 10 years has proved that Vietnamese people can fully master space technology themselves, paving the way for big goals and dreams in the future.

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