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 - also 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.
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 Physics Laboratory in Laurel, Maryland - where the spacecraft was also designed and built - by sending a status beacon tone on Jan. 5.
For the Record: Parker Solar Probe Sets Distance, Speed Marks on 17th Swing by the Sun
NASA's Parker Solar Probe completed its 17th close approach to the Sun on Sept. 27, 2023, breaking its own distance record by skimming just 4.51 million miles (7.26 million kilometers) from the solar surface.
Set up by a gravity-assist flyby of Venus on Aug. 21, the close approach (known as perihelion) occurred at 7:28 p.m. EDT, with Parker Solar Probe moving 394,736 miles per hour (635,266 kilometers per hour) around the Sun - another record. The milestone also marked the midway point in the mission's 17th solar encounter, which began Sept. 22 and continues through Oct. 3.
The spacecraft entered the encounter in good health, with all systems operating normally. Parker Solar Probe is scheduled to check back in with mission operators at the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland - where the spacecraft was also designed and built - by sending a stream of telemetry (status data) on Oct. 1.
The spacecraft will transmit science data from the encounter - largely covering the properties, structure, and behavior of the solar wind as it launches off the Sun - back to Earth from Oct. 4 - 19.
Related Links
Parker Solar Probe
Solar Science News at SpaceDaily
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