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A compound image created using the data collected by the joint NASA-DOD Clementine mission in 1994. Credit: NASA
China has achieved great work, which made the first laser measuring range from Earth to the Earth to the moon during the day.
Researchers at Yunnan Pacents Under the Chinese Academy of Sciences (CAS) used an infrared laser system of 1.2 meters (3.9 meters) to promote Laser Retoreflector on Tianu 1 Satellite orbits the moon.
The laser ranges The moon’s distances are difficult, which requires sending a delicate beam, more than 186,000 miles (300,000 km) to hit a ribor in the small corner, which wears the pulse with the laser directly from where it came. Next, the return signal should be taken with a telescope using very sensitive detection devices. Doing this during the day brings the additional challenge of the huge background “noise” Sun.
Scientists have used tests ranging in laser measurement that it takes to get a return signal, allowing them to calculate the moon’s distance to high degrees of accuracy. Number Apollo Landing tasks crew It was published by laser On the moon for this purpose.
The day test is useful in expanding the window for such notes. It can have applications for major space exploration tasks, including China’s international lunar research station (ILRS).
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TIANDU 1 satellite, which was launched in March 2024, is one of the two small Tiandu Satellite Send to the moon along with Queqiao 2 The satellite of the lunar sequence, which facilitated communications Chang’e 6 Farid lunar sample mission after a few months.
Day test with tiandu 1 follows days after a A similar test During the night, it was a laser out on board a bone branch on the DRO-A, a small satellite in a distant reactionary orbit around the moon. DRO-A is one of the two satellites who participated in a complex mission of four months Rescue After the launch of the anomalies last year.
