They therefore came up with a plan to split the impacted code into portions and store each section in a distinct location within the FDS.
They also have to modify those code parts so that, for example,
they still worked as a unit in order for this strategy to succeed. It was also necessary to update any references in other areas of the FDS memory that pointed to the location of that code.
The first thing the team did was identify the code that packaged the engineering data for the spacecraft. On April 18, they sent it to its new place in the FDS memory.
At a distance of about 15 billion miles (24 billion kilometers), a radio signal takes roughly 22 and a half hours to reach Voyager 1, and it takes an additional 22 and a half hours for a signal to return to Earth.
The change was successful, as the mission flight crew discovered when they received a response from the spacecraft on April 20.
It was the first time in five months that they had been able to monitor the spacecraft's condition and health.
So they decided to split the problematic code into parts and store them in distinct FDS locations.
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