On March 26, 2026 Beijing time, China's four-dimensional "Gaojing-2" 05/06 satellite was successfully launched into orbit using a "one rocket, two satellites" approach. As the exclusive unit responsible for measurement, operation, and control management, Xingyi Space has successfully completed a series of complex orbit controls, including initial orbit capture, phase drift, dual star tracking, and formation orbit configuration establishment, with top-notch domestic space control capabilities, fully autonomous core technologies, and strong support from ground station networks. It has achieved four landmark results for dual star "200 kilometer tracking, 180 degree phase locking, 200 meter pipeline capture, and 500 meter orbit formation", with an orbit control accuracy of 99.9%. The overall task was completed 5 days ahead of schedule, setting a new record for the difficulty of SAR dual star formation measurement, operation, and control in China's commercial aerospace industry. Set a new record for accuracy!
This mission is currently an advanced "dual star formation flying around+two sets of four-star coordination" project in the commercial aerospace field. During the launch into orbit phase, the company relies on measurement and control stations in Tongchuan, Lijiang, and Southeast Asia to achieve seamless relay tracking throughout the entire arc, accurately sending key instructions for entering orbit, ensuring that two high-value SAR satellites enter the predetermined orbit on time, stably, and safely, demonstrating the unique full process guarantee capability of leading commercial measurement and operation control enterprises.
Phase 1 orbit control: 3-day intensive orbit control, building a 200 kilometer following flight configuration
After entering orbit, Xingyi Space will continuously implement multiple batches of high-precision orbit control within 3 days, successfully completing the first phase of the following flight control task. The team overcame multiple constraints such as orbit freezing, binary star spacing, and phase drift, successfully sending the binary star into a sun synchronous freezing orbit, accurately establishing a stable following flight state at a distance of 200 kilometers, and initiating 180 ° phase drift control with Gaojing-2 03/04 satellites, fully meeting the orbit requirements for load testing and remote sensing applications, and laying the foundation for a four-star network in the shortest possible time.
Second stage orbit control: precise braking of floating stars, achieving perfect 180 ° phase locking
On April 6th, Xingyi Space launched the second phase of floating star braking and phase capture control, which lasted for two days of efficient tackling. Through multiple batches of precise control within the orbital plane, the strict 180 ° phase locking of the 05/06 and 03/04 satellites of the Four Dimensional Gaojing 2 spacecraft has been successfully achieved, while accurately maintaining the dual star 200 kilometer follow-up configuration, providing optimal orbital conditions for SAR payload function testing. This marks the first time that China's commercial aerospace industry has achieved engineering operation of "four satellites in two groups, paired formations, and phase coordination".
Third stage orbit control: 7-day hardcore attack, 100 meter circumnavigation creates new heights in the industry
From April 14th to 20th, Xingyi Space will face the most difficult and technically complex third stage pipeline and formation initialization control task. Faced with a series of industry-leading challenges such as multi constraint coupling, in-plane and out of plane control intersection, dual star collision safety, high-density orbit control, etc., the team adopted the core strategy of "the main star enters the pipeline first, the auxiliary star synchronously approaches, and then establishes a flying configuration", relying on short arc precision orbit determination, autonomous high-precision orbit control algorithms, and ground station network full arc support. In just 7 days, more than 20 orbit controls were implemented, successfully ending 5 days ahead of the original plan!
Schematic diagram of flying configuration
In the end, the main star (05 star) accurately entered the strict return orbit pipeline with a radius of 200 meters, while the auxiliary star (06 star) stably formed an elliptical formation with a radius of less than 500 meters around the main star, maintaining a 180 ° phase lock between the binary star and 03/04 star throughout the entire process. The overall control accuracy is as high as 99.9%, creating a new height in space manipulation for China's commercial aerospace SAR dual star formation!! At present, Double Star has launched autonomous flight maintenance and autonomous pipeline maintenance, officially entering a long-term stable, efficient and reliable business operation mode.
Full cycle escort, technology leads commercial aerospace
From the measurement and control of one rocket and two satellites entering orbit, to the closed-loop landing of three-stage orbit control, Xingyi Space provides the ultimate capability of exclusive full custody, fully autonomous core technology, high-precision execution in all stages, and 7 × 24-hour operation and maintenance throughout the entire cycle to provide measurement, operation and control support for the Siwei Gaojing-2 05/06 satellite. In the future, the company will continue to use intelligent health diagnosis, precise orbit maintenance, and normalized collision avoidance to fully ensure the long-term stable operation of the dual star system and the global high-precision mapping efficiency.
This mission is the fifth high-quality completion of the four-dimensional Gaojing series satellite full custody mission by Xingyi Space after Gaojing 3-01, once again demonstrating the company's absolute technological leadership in the field of commercial aerospace complex double star formation measurement and operation control. It has become the only commercial measurement and operation control enterprise in China that has fully mastered the core capabilities of "following flight - phase locking - pipeline capture - orbit construction - orbit maintenance". In the future, Xingyi Space will continue to deepen its core technology in space manipulation, continuously improve the layout of the global measurement and control station network, and contribute to the high-quality development of China's commercial aerospace industry with higher level service capabilities, more reliable engineering support, and more cutting-edge technological breakthroughs, contributing solid strength to the construction of a space power!
