At 4:26 on July 11, Pakistan's first scientific experimental satellite PakTES-1A successfully received a signal from the launch of the solar wing, indicating that the satellite has successfully carried out its mission in orbit.
On July 9, 2018, China used the Long March II C carrier rocket and the upper stage at the Jiuquan Satellite Launch Center to successfully launch the Pakistan Remote Sensing Satellite No. 1 and the scientific experimental satellite 'PakTES-1A' in the form of 'one arrow and two stars'. Among them, PakTES-1A is the first scientific experimental satellite independently developed by Pakistan. It mainly carries out technical verification work on satellite platforms. The Pakistani side attaches great importance to this experimental satellite.
The reporter learned from relevant departments that at 4:26 on July 11, the PakTES-1A satellite successfully received the launch of the solar wing, indicating that the satellite has successfully carried out its mission in the orbit. It helps the PakTES-1A satellite to fly the 'wings' and The solar sensor comes from the Shanghai Aerospace Technology Research Institute, and this has become a typical example of the development of 'Shanghai Manufacturing' to help the 'Belt and Road' countries along the route.
Researcher of Shanghai Aerospace and Pakistan Space and Outer Atmosphere Research Committee
According to reports, the solar wing is specifically developed by the Shanghai Aerospace 805, 811 for the PakTES-1A satellite capture unit, the Pakistan Space and Outer Atmosphere Research Committee, is the first expansion of Shanghai Aerospace system-level product exports. It consists of two sets of unfolded solar panels and a set of body-mounted solar panels. It uses high-performance honeycomb core and carbon fiber as structural materials. The design life in orbit is 3 years. The person in charge of the project, Shanghai Aerospace, said that The project is another representative system-level product export of Shanghai Aerospace following the export of Argentina Satellogic satellite body mounted solar wing products. At present, Shanghai Aerospace Sunwing covers three different types of rigid, semi-rigid and flexible, small, medium and junior. A series of different developments, more than 20 years of development, nearly 130 sets of on-orbit products, 100% success rate in orbit. The international market is developing steadily, and the 21st set of Argentine satellite solar wing products has been signed. Currently, 6 sets of products have been successfully delivered. Pakistan's PakTES-1B satellite solar wing project is progressing steadily and is actively developing in Europe, South Africa, South Korea, Singapore and other countries. Solar wing product development work.
Shanghai Aerospace's first unfolded solar wing system-level export product
Another solar sensor that is involved in satellite flight is also the most widely used type of sensor in the aerospace field. It measures the vector orientation of the sun relative to the spacecraft's body, and measures the space of the solar ray and the spacecraft such as satellites. The angle between the axes, the attitude measurement and determination of the spacecraft platform.
The solar sensor technology of Shanghai Aerospace Control Institute is mature and stable, and it has naturally become the main product of international export. In August 2016, aiming at the Pakistan satellite bidding opportunity, the solar sensor products of the control institute decisively participated in the bidding, and finally succeeded in winning. According to the relevant person in charge of the control office, the delivery of the product includes 12 analog solar sensors and 2 digital solar sensors, and the number of products delivered is large. With the control of the solar sensor products with the successful completion of PakTES-1A The satellite photoelectric sensor products officially went international and went to foreign users.
Shanghai Aerospace Control Institute Sun Sensor
In addition, it is worth noting that in the PakTES-1A scientific experimental satellite mission, the Pakistani side requires a solar panel output of 2.5 square meters on the solar panel, and the output power of the solar array at the end of three years is not less than 600W. The solar cell with an efficiency of 32% has passed the qualification test. The measured results are converted to 610W power output at the end, which fully meets the user's requirements.
The 32% efficient space solar cell technology is the most efficient batch product in China Aerospace Science and Technology Corporation's spectrum. It is also the world's first-class research product supported by Shanghai Aerospace in the past two years. This is also the 811 32% efficiency arsenic. The first export application of gallium solar cells, compared with 30% efficient solar cells, the design is designed to improve the solar cell current density through spectral division and material selection, thus improving the efficiency of the battery. At the end of its life, 811 designers said that '3 years is completely no problem, our solar cells can meet the life expectancy of satellites for 5-8 years.'