Tomsk-TPU-120, the first 3D printed CubeSat Mission
The Tomsk -TPU-120 3U CubeSat was launched from Baikonur to the ISS on March 31, 2016 in a Progress-MS-2 cargo vessel. It will be deployed by hand during a future Russian spacewalk (EVA), which is why it has a handle. The 5 kg nanosatellite was developed by students at TPU (Tomsk Polytechnic University), the oldest technical university in the Asian part of Russia (founded in 1896), to test new space materials technology — it will be the world's first space vehicle with a 3D-printed structure when deployed. 1) 2)
According to Alexey Yakovlev, head of the TPU Institute of High Technologies, Tomsk-TPU-120 is the world's first satellite, which was developed with the help of a 3D printer. The entire casing of a satellite is fully 3D printed using dynamic modeling. The combination of these technologies can significantly reduce the development time and the number of full-scale tests, find new engineering solutions and reduce the project's cost. 3) 4)
Alexey Yakovlev explained that dynamic modeling, along with 3D printing, allow developers to reduce the satellite's weight, give it strong characteristics and resist vibration. "The current project is just the first stage of a long-term project to develop and create small, multi-purpose satellites. In particular, this work pertains to the creation of an on-orbit group of satellites dealing with many urgent problems related to agriculture, forest fires, climate change and natural resources," he said.
Figure 1: Photo of the Tomsk-TPU-120 nanosatellite (image credit: TPU)
In May 2016 Tomsk Polytechnic University celebrated its 120th anniversary. As part of the celebrations on May 10-11 Tomsk-TPU-120 was activated in the ISS and transmitted a greeting to Earth inhabitants, recorded by students of the university in 11 languages: Russian, English, German, French, Portuguese, Chinese, Arab, Tatar, Kazakh, Hindi and Spanish.
Figure 2: The Tomsk-TPU-120 satellite aboard the ISS was turned on May 10, 2016 at 07:55 UTC and was switched off on May 11 at 10:10 UTC for the 120-year anniversary celebration of the University (image credit: TPU)
According to Alexey Yakovlev, Russian cosmonauts will deploy the satellite in July 2017 from the outer surface of the ISS, something that Yakovlev described as "a tricky and expensive procedure, preceded by repair or the modernization of the space outpost. Experiments with the satellite were conducted not only on board the ISS, but also on the ground. Many radio amateurs from all across the world were able to catch a satellite signal on their radio stations, and posted videos of it on the Internet."
Yakovlev added that after being put into orbit, the Tomsk-TPU-120 will be in free flight mode for about six months. During this time, he said, its orbit will ebb gradually and it is slated to eventually enter the dense layers of the atmosphere, where it will be destroyed. He also said that in November of 2016, the Russian Federal Space Agency Roscomos approved experiments on creating CubeSat satellites on board the ISS with the help of a 3D printer and then placing them into orbit.
The Tomsk-TPU-120 CubeSat mission will be described and updated when the information becomes available.
1) "Tomsk-TPU-120 CubeSat celebrates University anniversary," AMSAT-.UK, April 30, 2016, URL: https://amsat-uk.org/2016/04/30/tomsk-tpu-120-cubesat/
4) A unique 3D-printed Russian satellite is expected to be put into orbit from the International Space Station next year," Sputnik Nesw, Dec. 26, 2016, URL: https://sputniknews.com/science/201612261049011599-russia-satellite-3D-printer-experiments/
The information compiled and edited in this article was provided by Herbert J. Kramer from his documentation of: "Observation of the Earth and Its Environment: Survey of Missions and Sensors" (Springer Verlag) as well as many other sources after the publication of the 4th edition in 2002. - Comments and corrections to this article are always welcome for further updates (firstname.lastname@example.org).