[Tee tiong huat]

Mission engineers taken steps to avoid turning off science instrument for as long as possible b'cos the science data collected by twin Voyager probes is unique. No other human-made spacecraft has operated in interstellar space region outside the heliosphere. Plasma nstrument measures the amount of plasma (electrically charged atoms) & direction it is flowing & collected limited data in recent years due to its orientation relative to the direction plasma is flowing in interstellar space.
Both spacecraft are powered by decaying plutonium lose about 4 watts of power each year. After twin Voyagers completed their exploration of giant planets in 1980s, mission turned off several science instruments not used in study interstellar space gave craft plenty of extra power a few years more, all others onboard not essential for probes working, including heaters. they adjusted Voyager 2’ voltage is monitored.

On Sept. 26, engineers issued command to turn off plasma science instrument. Sent by NASA’s Deep Space Network took 19 hrs to reach Voyager 2, & return signal took another 19 hrs.

Mission engineers is carefully monitor changes being made to old 47-year-old craft’s..
https://www.youtube.com/live/fhZg74LqFlw...MYZ3N9pygS