202 1 What was the first solar exploration satellite in China?

202 1 China's first solar exploration satellite was Kazuo.

"xi River", the full name of the solar Hα spectrum detection and double-super-platform science and technology test satellite, was launched in 20211October, running in the sun synchronous orbit with an average height of 5 17 km, and its main scientific load is the solar Hα imaging spectrometer.

As the first "photographer" dedicated to the sun in China, He successfully realized the first international scanning imaging of the Hα-band spectrum of the space sun, and obtained the fine structures of the Hα-band spectrum, the Si ι-band spectrum and the Fe ι-band spectrum in orbit for the first time in the world.

According to the fine structure of these spectral lines, the high-precision Doppler velocity fields of heliosphere and photosphere can be retrieved, and the activities in the solar atmosphere can be recorded in detail, so as to study the physical process of solar activities.

At present, "xi River" is carrying out scientific observation every day according to the established mission plan, and nearly 100 solar eruptions have been observed, and related research work is under way. He's scientific data is open to the world.

The Meaning of "xi He"

In addition to the achievements made in solar scientific exploration, in the new satellite technology test, "Xihe" realized the on-orbit performance verification and engineering application of the master-slave cooperation non-contact "double super" satellite platform technology for the first time in the world, realized the on-orbit application of the international first solar space Hα imaging spectrometer, and realized the on-orbit verification of the international first atomic frequency discrimination solar velocimeter navigator.

The "Shuangchao" satellite platform solves the technical problem that the micro-vibration of the traditional satellite platform is difficult to measure and control, and adopts the magnetic levitation control technology to ensure that the load imaging is not affected by the platform vibration, so that the photos are "more stable and more accurate", which improves the attitude control level of the satellite platform in China by 1 to two orders of magnitude.

In the future, the technology of "Shuangchao" satellite platform will be popularized and applied in new space missions such as high-resolution remote sensing, solar stereo detection and discovery of extrasolar planets.