2021-10-18

NASA’s Lucy mission may have encountered a solar cell array problem

By yqqlm yqqlm

NASA’s Lucy mission may have encountered a solar cell array problem

it is reported that each battery array is a group of solar panels, and “Lucy” will be used to provide power for its exploration

“‘lucy’s two solar cells have been deployed and are generating electricity, and the batteries are still charging,” NASA wrote in a blog post on Sunday, “Although one of the arrays has been locked, there are indications that the second array may not be fully locked. Under the current spacecraft attitude, Lucy can continue to operate without threat to its health and safety. The team is analyzing the spacecraft data to understand the situation and determine the next step, so as to realize the full deployment of solar arrays.”

it is understood that in During the launch of Lucy, the two solar panels were folded and would unfold like fans when the spacecraft entered orbit. It is expected that these panels will take 20 minutes to fully unfold. The main researchers of the mission said that this will “determine whether the rest of the 12-year mission will succeed” The solar panel was successfully launched 91 minutes after launch. Now it’s just a problem of correctly locking the second panel.

Thomas Zurbuchen, NASA’s deputy director in charge of science, tweeted that he believes the array problem will be solved soon. “NASA’s Lucy mission is safe and stable. Two solar arrays have been deployed, but one of them may not be fully locked. The team is analyzing the data to determine the next step. The team has overcome many challenges, and I believe they will win here.”

it is understood that Lucy ” The ultimate goal is to explore Trojan asteroids, a group of asteroids in Jupiter’s orbit, which have never been studied closely before. These Trojan asteroids are at the “Lagrange point” in Jupiter’s orbit It moves in the form of huge groups or camps. The Lagrange point is the area locked by the thrust and pull of gravity, which permanently leads and tracks Jupiter during Jupiter’s journey around the sun.

these amorphous space rocks are like a series of cosmic fossils, providing a window to understand the earliest era of our solar system (about 4.6 billion years ago). Lucy will play the role of cosmic paleontologist. It will fly over the eight different “fossils” in the distance and study their surfaces with infrared imagers and cameras