NASA Parker Detector opens ground communication antenna flies 4.7 million kilometers from Earth – Science Exploration – cnBeta.COM

According to Space Beijing time on August 19, NASA (hereafter "NASA") started the deep space tour of Parker Solar Detector quite well. NASA officials said on 17 August that the local time, the Parker Solar Detector, was launched on Sunday morning (12 August) from the Cape Canaveral Air Force Base in Florida. According to the plan, it has completed the flight. Several milestones in the brigade.

For example, after a day of launch, the Parker Solar Detector deployed a high-gain antenna for communication with the earth. Also on 13 August it also launched one of the four instruments – the Fields electromagnetic force meter.

NASA officials said that Parker solar detectors have also used their propellers to reduce impulses to stabilize their flight profiles.

Andy Driesman, flight manager at the Johns Hopkins University Applied Physics Laboratory, said in a statement: "The Parker Solar Detector works in line with design goals and we carry out commissioning activities."

Drissman also said: "Our team monitors the Parker Solar Detector 24 hours a day, 7 days a week, receives normal data and we gradually launch different systems on the spacecraft, and use gravity for the first time in the vicinity of Venus. "catapult effect" to accelerate the preparatory work. "

Parker Solar Detector Orbital Schematic

Parker solar detector flies for the first time over Venus on 3 October 5 November The first close contact with the sun laid the foundation.

The $ 1.5 billion Parker Solar Detector is in close contact with the sun 24 times in the next seven years. It will also fly over Venus several times and accelerate with the gravity catapult & # 39; effect – in fact, six times in addition to those in October this year.

At the last contact with the sun, the closest distance to the surface of the sun would be only 3.83 million miles (6.16 million kilometers). At present, the closest record of the human spacecraft to the sun is 27 million miles. The Helios 2 spacecraft, jointly developed by Germany and the United States, was created in 1976.

During the close contact with the sun, the strong gravity of the sun will bring the speed of the Parker Solar Detector to an alarming level. At the last close encounter with the sun, the Parker Solar Detector will reach a speed of about 430,000 miles (690,000 kilometers). This speed is more than double the current record made by the NASA Juno spacecraft when it arrived in Jupiter in July 2016.

During close contact with the sun, Parker Solar collects data to study the electric, magnetic and wave movements of the sun and to understand the charged particles of the sun. These studies help to provide answers to some of the long-standing scientific mysteries. For example, why is the temperature of the outdoor atmosphere of the sun (the sundial) much higher than the surface and how does the charged particle accelerate to its highest speed?

NASA officials said that from the afternoon on August 16 in the eastern United States, the Parker Solar Detector was 2.9 million miles (4.7 million kilometers) from the earth at a speed of 39,000 miles (63,000 kilometers) .

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