Core Viewpoint - The successful launch of the upgraded Zhuque-2 rocket marks a significant advancement in China's commercial space capabilities, demonstrating enhanced payload capacity and technological improvements in rocket design and operation [1][2][3] Group 1: Rocket Specifications and Capabilities - Zhuque-2 is China's first dual low-temperature liquid rocket using full cryogenic propellant loading, featuring a large thrust liquid oxygen-methane propulsion system [2] - The rocket can carry payloads of up to 4 tons to a 500 km sun-synchronous orbit, targeting low Earth and sun-synchronous missions [2] - The upgraded rocket includes a composite material fairing with a diameter of 4.2 meters and a length of 8.7 meters, improving compatibility with various payloads [2] Group 2: Engine and Structural Enhancements - The first stage of the rocket is powered by four TQ-12A engines, each providing a sea-level thrust of 720 kN, while the second stage uses a TQ-15A engine with a vacuum thrust of 836 kN [2] - Upgrades from the initial model include increased thrust for the first stage engines, simplification of the launch process, and the use of real-time wind correction technology [2] Group 3: Launch Process and Reliability - The launch utilized a "three-flat" measurement and launch mode, ensuring orderly processes and stable system operations throughout the testing and launch phases [3] - The successful execution of the launch further validates the reliability and service capabilities of the Zhuque-2 rocket [3]