SOL

https://youtu.be/JzP054Dp6SM

https://1drv.ms/p/s!ArQmbXR9Wd42gywqcBu6q5UGXoH5?e=JYg4pk

The goal of NASA's Parker solar probe is to "touch the sun." The spacecraft is currently travelling closer to the sun's surface than any other mission has.

Our understanding of the sun will change as a result of the expedition. Parker will be the closest spacecraft to the sun by more than seven times. Working in harsh conditions while grazing closer to our star than any previous spacecraft, it collects data in the sun's corona. Its four instrument suits were each specifically created to resist the extreme radiation and temperatures they will experience in order to define the dynamic zone closer to the sun by monitoring particles as well as electrical and magnetic fields.

Eugene Parker, an American expert in solar and plasma physics, is being honoured for his contributions to the subject.

a heat shield

Parker's Solar probe is built to resist the mission's harsh environments and temperature changes. It shields the mission from the sun's powerful light emissions, yet

Let the spacecraft come into contact with the coronal material.

Tools used in the probe

first Fields

It gauges the inner heliosphere's electrical and magnetic field due to solar turbulence.

Niobium alloy antennas measuring 2 metres long can endure extremely high temperatures.

sunlight antennas to gauge the solar wind's characteristics.

a fifth antenna that is perpendicular to the others and shaped like a heat shield that displays high frequency and electrical fields in three dimensions.

The only imaging device on board the spacecraft, called WISPR (Wildfield Image for Parker Solar Probe), is used to take pictures of solar wind, coronal mass ejections, and other solar ejections.

Using two complementary instruments, SWEAP (Solar Wind Electrons Alphas and Protons investigations):

SPC: Solar probe cup

A metal device that can capture charged particles in vacuum is known as Faraday's Cup.

SPAN, or Solar Probe Analyzer It is made up of two instruments, SPAN-A and SPAN-B, and has viewing fields that enable it to see areas of space that the SPC is unable to see.

It connects the solar wind's most abundant particles, including electrons, protons, and helium ions, and measures things like velocity, density, and temperature to help us understand it better.

 The Integrated Science Inquiry of the Sun, or ISOIS, is a scientific investigation that combines measurements from two complementary devices to examine particles with a variety of energy. Its objective is to collect scientific data.

But how can a heat shield survive the heat of the sun?

Naturally, a temperature of thousands of degrees Fahrenheit is still quite hot. But we do have a fix.

Naturally, a temperature of thousands of degrees Fahrenheit is still quite hot. However, we have a fix for it. We have a heat-resistant material called TPS that can tolerate temperatures of up to 3000F. It is approximately 4.5 inches thick and 8 feet in diameter. The spacecraft's body will be sitting at a comfort zone of 85F just on the other side of the should thanks to those few inches of protection, keeping practically all intrusion at a safe distance. The Johns Hopkins University Applied Physics Laboratory developed the TPS, which adopted C+C advanced technology in numerous C-composite forms sandwiched between 2 C plates. This thin insulation will be completed with a coat of white ceramic paint on the sun-facing plate to maximise reflection.

(a) One of the two integrated Parker solar heat shields is the solar probe cup.

This instrument is a faraday cup, a sensor created to monitor the flow angles of electrons and ions coming from the solar wind.

(b) The iron-zirconium-molybdenum cup, has a melting point of approximately 4260 degrees Fahrenheit.

(c) Following launch, the Parker Solar Probe will recognise its position shield and turn to face it. For the next three months, it will travel in this orientation, embracing the sun's heat and shielding itself from the vacuum of space.

The spacecraft will orbit our star 24 times over its seven-year projected mission period. It will sample the solar wind, examine the sun's corona, and offer hitherto unseen close-up images of our stars during each close pass to the sun.

Goals

1.    Parker saw evidence that the dust stops at an estimated 3 ½ million miles from the sun. As the dust get closer, the sun vaporises it, creating a dust-free zone surrounding the star.

2.    At earth, magnetic field lines flow evenly. Out from the sun, parker noted that the magnetic field lines flip in whip-like motion, turning 180 degree around in a matter of seconds.

Now, we inferred that the solar wind that the solar wind has rough, irregular texture.

3.    Parker found a transition point in the solar wind. It spotted science of this transition and changeover happens significantly further out than expected.

4.    Parker observed several tiny bursts of solar energetic particles. As faster moving particles are a source of dangerous radiation, the more we learn about these eruptions, the better we can protect our technology and astronauts. 

CHALLENGES

The presence of dust particles close to the sun presented the scientists with their biggest dilemma. Planet was involved. The probe and mission scientists constructed a degree and tested the probe in it because Venus has also previously discovered that there are huge amounts of dust particles in its atmosphere. Unfortunately, there was a far larger amount of dust than anticipated when they reached for the sun.

The star tracking cameras employed as part of the spacecraft's guidance and control system occasionally observe reflected light from dust and shuttering particles, which can briefly impair their ability to see stars. And this may cause the probe to be misdirected. The result is To keep the tips facing the sun, solar lymph sensors have been included.

It is built to overcome any challenges or problems that may arise with the probe. And it is readily steered in the direction of the sun.

https://www.nasa.gov/feature/goddard/2021/nasa-enters-the-solar-atmosphere-for-the-first-time-bringing-new-discoveries

https://www.nasa.gov/feature/goddard/2018/traveling-to-the-sun-why-won-t-parker-solar-probe-melt

https://blogs.nasa.gov/parkersolarprobe/2021/11/10/space-dust-presents-opportunities-challenges-as-parker-solar-probe-speeds-back-toward-the-sun/

https://www.nasa.gov/feature/goddard/2019/nasas-parker-solar-probe-sheds-new-light-on-the-sun

It was nice experience on working with the Parker Solar Probe mission.

https://www.nasa.gov/feature/goddard/2019/nasas-parker-solar-probe-sheds-new-light-on-the-sun

https://en.m.wikipedia.org/wiki/Parker_Solar_Probe

http://parkersolarprobe.jhuapl.edu/

#parker probe