Why is there a large error between the lunar surface temperature measured by Apollo and the Chang'e data??? In the early 70s of the 20th century, when the Apollo 15 and Apollo 17 astronauts arrived on the moon

Why is there a large error between the lunar surface temperature measured by Apollo and the Chang'e data???

In the early 70s of the 20th century, when the Apollo 15 and Apollo 17 astronauts arrived at the lunar surface, they found that the lunar surface was warmer than expected.

Apollo 17 astronaut Harrison Schmitt uses a shovel to take samples on the moon.

The astronauts of the Apollo 15 and Apollo 17 missions are said to have deployed heat flow probes on the moon with the aim of measuring the amount of heat flowing inside the moon to the lunar surface, which will help understand the structure and composition of the moon. The probes ran until late 1977 and kept data back to NASA's Johnson Space Center. The data showed that surface temperatures rose in the area around the heat flow probe until the end of the survey mission in 1977.

According to data measured during the Apollo moon landing, near the equator on the moon, the surface temperature during the day can reach 120 degrees Celsius, and the temperature at night will be as low as minus 170 degrees, with a temperature difference of nearly 300 degrees between day and night. Data measured by multiple Apollo missions show that the temperature of the shallow surface of the moon is about 127 degrees Celsius during the day and drops sharply to minus 173 degrees Celsius at night. The above information has become the "standard answer", appearing in various materials about the moon's cognition.

However, the Chang'e-4 lunar landing was designed to this standard, but it ran into trouble after landing. Because the actual temperature difference is much larger than the Apollo data, the minimum temperature at night exceeded minus 195 degrees, resulting in the Jade Rabbit lunar rover failing to achieve the expected results, its cables became soft and long, and the insulation skin outside the cables became quite weak. Later, the cable broke, causing the rover to be short-circuited, unable to supply power and unable to move.

By measuring the full night temperature of the moon, the Chang'e-4 lander obtained a minimum temperature of -195.2°C ±0.3°C on the lunar soil surface at the landing site. This is the first time that the temperature of the shallow lunar soil on the far side of the moon has been measured internationally.

If you ask, why are the temperature data of Apollo inaccurate?

Perhaps, one would say that after the end of the experiment on this event in 1977, a lot of data was lost, and only the data from 1971 to 1974 was archived...