Origin Space’s “Yangwang-1” satellite captured the view of the C/2021 A1 Comet Leonard with the background of the northern lights. Once in 80000 years, the C/2021 A1 Comet Leonard was closest to Earth, which was reaching perihelion on January 3rd 2022.

Star trackers are crucial components in satellite navigation systems that determine satellite attitude and direction by observing the stars in the sky. To validate the performance and precision of star trackers, the real sky test is an essential part.

Since September 6, 2022, the S3 and S4 test satellites of the CentiSpace-1 Constellation have been successfully launched in orbit, and TYspace NST4S-A2 and PST3S-H1 star trackers worked combination for the satellite to provide stable and accurate attitude determination.

In the cold crystal winter night sky, in the sparkling various stars, Orion’s 7stars are shining bright and clear.

The star tracker is a high-precision space attitude measurement device with the stars as the reference system and the starry sky as the working object.

Zhixing 3A satellite successfully put into orbit on November 14, and TY-SPACE PST3S-H4 star tracker successfully service for it, and the performance of PST3S-H4 work well and stable in orbit.

In order to clarify the principle and method of spacecraft attitude measurement, further understand the importance of star trackers in aerospace applications and the difference from other attitude sensors, Here briefly introduces the situation of the main attitude sensors on spacecraft.

At 14:01 on March 5th, at the Xichang Satellite Launch Center, by the Long March 2C carrier rocket, six low-orbit broadband communication satellites successfully launch out.

The calibration methods of star trackers are mainly divided into ground calibration and on-orbit calibration.

In order to clarify the principle and method of spacecraft attitude measurement, further understand the importance of star trackers in aerospace applications and the difference from other attitude sensors, Here briefly introduces the situation of the main attitude sensors on spacecraft.