NASA's Parker Solar Probe completes 18th close approach to the sun

January 8, 2024

NASA's Parker Solar Probe completes 18th close approach to the sun

by Michael Buckley,

NASA's Parker Solar Probe completed its 18th close approach to the sun on Dec. 28, 2023, matching its own distance record by skimming just about 4.51 million miles (7.26 million kilometers) from the solar surface.

The close approach (known as perihelion) occurred at 7:56 p.m. EST, with Parker Solar Probe traveling at 394,736 miles per hour (635,266 kilometers per hour) around the sun鈥攁lso matching the speed record for the 17th solar encounter. The milestone also marked the midway point in the mission's 18th solar encounter, which began Dec. 24, 2023, and continued through Jan. 2, 2024.

Parker Solar Probe鈥檚 18th orbit included a perihelion that brought the spacecraft within 4.51 million miles of the Sun. Credit: NASA/Johns Hopkins APL/Steve Gribben

The spacecraft entered the encounter in good health, with all systems operating normally. Parker Solar Probe checked back in with mission operators at the Johns Hopkins Applied 麻豆淫院ics Laboratory in Laurel, Maryland鈥攚here the spacecraft was also designed and built鈥攂y sending a status beacon tone on Jan. 5.

Provided by NASA

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