4月15日，在中科院主辦的地月空間DRO探索研究學術研討會上，科研團隊介紹了中科院A類戰略性先導專項“地月空間DRO探索研究”取得的部分重要成果，首次從官方角度披露了如何拯救發射失利的兩顆衛星，基本確認了此前的報導。

According to reports,After arriving at and staying in the predetermined orbit, the two DRO-A/B satellites specially deployed and developed by China have established an inter-satellite measurement communication link with the previously launched DRO-L low-earth orbit satellite.

This signifies,China has successfully built the world's first DRO-based Earth-Moon space constellation!

DRO (long-range retrograde orbit) is a very unique family of bounded periodic orbits in the Earth-Moon space, which orbits the Earth anteriorly and retrograde around the Moon.

It is located at the high potential energy of the Earth and the Moon, and is a transportation hub connecting the Earth, the Moon and deep space, with unique attributes such as low-energy entry, stable berthing, and low-energy global accessibility, and is a natural harbor for the Earth-Moon space.

2017年，中國科學院空間應用中心科研團隊率先闡明瞭地月空間DRO的獨特屬性和戰略價值，取得了一系列重要理論突破，刻畫了DRO的動力學相空間結構，定量揭示了其低能入軌特性，並啟動了預先研究和關鍵技術攻關。

In 2022, the Chinese Academy of Sciences launched the implementation of the Class A strategic pilot project "Earth-Moon Space DRO Exploration Research".

2024年2月3日，首顆試驗衛星DRO-L，成功進入太陽同步軌道，並正常開展相關實驗。

3月13日， DRO-A/B雙星組合體發射升空，但衛星未能準確進入預定軌道，據悉是因為火箭上面級“遠征一號S”出現故障。

A team of Chinese scientists immediately began a thrilling "satellite extreme life and death rescue" in space.

根據數據分析判斷，DRO-A/B衛星組合體發射後快速翻滾，實際進入的初始軌道遠地點高度僅為13.4萬千米，低於預先設計的29.2萬千米。

3月15日，也就是發射後兩天，科研團隊決定雙星不分離，並制定了軌道重構策略，通過雙星交替利用燃料抬升軌道高度。

3月18日、23日，成功實施兩次近地點軌道機動補救控制，DRO-A/B衛星高度被相繼抬高到24萬千米、38萬千米，越過“死亡線”。

On 20, the DRO-A/B satellite successfully carried out a key maneuver to the moon and entered the preset low-energy Earth-Moon transfer orbit.

On 15/0, the DRO-A/B satellite successfully carried out the DRO orbit maneuver, accurately entered the scheduled mission orbit, and the rescue was successful!

That's itDRO-A/B衛星歷經長達123天飛行，航程約850萬千米，終於進入預定軌道It provides basic guarantee and effective support for the subsequent on-orbit test of satellite payloads.

根據美國太空軍的遙感數據，DRO-A/B衛星軌道的遠地點距離地球約為58萬公里(遠超地月平均距離38.5萬公里)。

On 28/0, the DRO-A/B satellite complex was successfully separated, and the two satellites took photos of each other to confirm it. The technical indicators show that the energy balance of Shuangxing is normal, and the platform and load are working normally.

On 30/0, DRO-L/A/B Samsung successfully built a K-band microwave inter-satellite measurement communication link, which verified the networking mode of Samsung's interconnection.最遠距離達117萬千米。

At the end of 3/0, the DRO-B star left the DRO orbit and transferred to the Earth-Moon resonance orbit.

So far, the world's first DRO-based Earth-Moon space three-star constellation has been successfully deployed in orbit, and a series of substantive breakthroughs have been made in the exploration and research of Earth-Moon space DRO:

For the first time in the world, the low-energy consumption of spacecraft DRO has been put into orbit.

國際上首次驗證117萬千米K頻段星間/星地微波測量通信鏈路。

For the first time in the world, the Earth-Moon space satellite tracking satellite has verified the new qualitative capability of orbit determination and navigation.

Schematic diagram of orbit change during the rescue process of the network transmission satellite