The China National Space Administration (CNSA) recently declared the successful launch of Queqiao-2, a pivotal signal relay satellite. This satellite marks a significant advancement in China’s lunar exploration missions, enabling communication between ground operations and lunar probes, particularly those exploring the far side of the moon.
Key Information
- Launch Details: Queqiao-2, accompanied by two miniature satellites, Tiandu-1 and Tiandu-2, was launched on March 20.
- Purpose: Queqiao-2 serves as a communication bridge for future lunar probe missions until at least 2030.
- Operational Significance: With the moon’s far side perpetually facing away from Earth, direct communication is hindered. Queqiao-2 resolves this issue by relaying signals between the lunar surface and Earth-based operations.
- Functionality: Described as the “main switch” of lunar missions, Queqiao-2 orchestrates communication between ground control and lunar probes.
- Upcoming Missions: Queqiao-2 will support the Chang’e-6, Chang’e-7, and Chang’e-8 lunar missions, facilitating sample retrieval and exploration.
- Performance: The satellite has met mission requirements, ensuring effective relay communication for current and future lunar exploration endeavors.
- Achievements: Queqiao-2 has successfully established communication with existing lunar probes, including Chang’e 4, which landed on the far side of the moon.
Operational Details
- Orbital Maneuver: Queqiao-2 entered its designated elliptical orbit on April 2, following mid-course corrections and orbital adjustments around the moon.
- Communications: The satellite has established communication with Chang’e 4 and Chang’e-6, enhancing the operational efficiency of current lunar missions.
- Comparison: The success of Queqiao-2 contrasts with the failed launch of the DRO-A/B satellites, highlighting the challenges and successes in lunar exploration.
Multiple Choice Questions (MCQs):
- What is the primary purpose of the Queqiao-2 satellite?
- A) Conducting lunar surface exploration
- B) Establishing communication between ground operations and lunar probes
- C) Mapping the lunar far side
- D) Monitoring lunar environmental conditions
- Answer: B) Establishing communication between ground operations and lunar probes
- Which upcoming lunar mission will Queqiao-2 support in sample retrieval from the moon’s hidden side?
- A) Chang’e-5
- B) Chang’e-6
- C) Chang’e-7
- D) Chang’e-8
- Answer: B) Chang’e-6
- What role does Queqiao-2 play in China’s lunar exploration missions?
- A) Navigation assistance for lunar landers
- B) Solar energy generation on the moon
- C) Relay platform for communication between Earth and lunar probes
- D) Geological analysis of lunar samples
- Answer: C) Relay platform for communication between Earth and lunar probes