Update: NASA is worried about Lucy's mission because of one of the arrays did not open completely
Article by: Andacs Robert Eugen, on 22 April 2022, at 01:55 pm Los Angeles time
NASA is worried about one of the two arrays because it has not fully opened.
According to NASA engineers, one of the arrays is fully open, but the other is partially open.
However, on April 18, NASA decided to move forward with plans to complete the deployment of the blocked and unblocked solar network of the Lucy spacecraft.
Going forward with these networks without the ship's arrays being completely open is how and how.
In a way, nothing very serious can happen, because the array problem is open at 345 degrees out of a total of 360 degrees, and NASA says it produces enough energy for the spacecraft, no significant problems yet.
But in a way, NASA's team of engineers is also worried about the potential damage to the array if the spacecraft would conduct the main engine burn in its current configuration.
"After launch, the arrays were opened by a small motor that reels in a lanyard attached to both ends of the folded solar array. The team estimates that 20 to 40 inches of this lanyard (out of approximately 290 inches total) remains to be retracted for the open array to latch," said NASA.
According to the plan, the solar network was designed with a primary motor winding and a spare motor winding.
Given the situation, the ground tests, the analysis by the engineers, and the technical plan of the Lucy mission, NASA engineers will use both engines simultaneously to generate more torque than was used on launch day, to pull the string as needed, to stay the required distance to lock.
Completion will be done in two steps:
1. Provisionally scheduled for May 9 (2022) by which the string will be pulled as long as it does not lock (until a state is almost completely tense).
2. If all goes well in step 1, data will be used to pull the string until the array locks.
Lucy's mission will continue and will surprise us with its future research.