Do you still remember the satellite of the Deep Space Climate Observatory that has been hidden by NASA for nearly 20 years? After being sent to the Lagrange L1 point by the Falcon rocket in 2015, it has been running stably for more than four years. But just a week ago, the satellite, which was designed for five years, suddenly lost contact with the ground. It was alleged that the satellite was forced to go offline due to problems with the positioning system.
The moon captured by the Deep Space Climate Observatory flies over the earth
According to a spokesman for the US Department of Atmospheric and Marine Environment (NOAA), before the Deep Space Climate Observatory (DSCOVR) lost contact on June 27, the engineers discovered that the satellite platform had encountered a fault in the positioning system, so the satellite was allowed to enter. "Safe Mode". Although the staff subsequently diagnosed the satellite and attempted to fix the problem, the satellite in safe mode was unable to respond to any data, causing the satellite, which was at Lagrange L1 and 1.5 million kilometers from the Earth, to strike.
The Deep Space Climate Observatory was proposed in the late 1990s by the Clinton Administration. The satellite has two main purposes. One is to observe the solar wind, and to predict the solar spurt and solar storm on the earth 60 minutes ahead of the earth. The camera performs deep space imaging of the Earth to monitor the Earth's ozone layer, clouds, vegetation and land. However, after the satellite was manufactured in the late 1990s, it was completely sealed in NASA's Maryland week warehouse for eight years in the Bush era. Until the Obama administration pulled it out and re-launched in 2015, it was mainly used by NOAA.
The space location of the Deep Space Climate Observatory