Monday , August 2 2021

MK News – "Red Planet Geologist" Insight Hopomor Dawn Mars Landing



Challenging the `7-minute fear & # 39; 40% success rate

The main image of the article

Picture descriptionInsight is a scene where the final rocket landed on the backstock. [출처: NASA/JPL-Caltech]

NASA's Insight Mars will land at the Elysium Planitia near the Equator at the end of spacecraft day.

It was launched on May 5 and after a 205-day long journey, it reached 480 million kilometers up to its destination, but with the most difficult and serious obstacle to the entry of Mars in the atmosphere, race and landing (EDL) it is left.

The California Jet Propulsion Laboratory (JPL) has gone under extreme control because it can fulfill its original target without obscuring the underground world of Mars.

However, considering that the planet Mars is about 8.1 minutes (486 seconds) to move at a speed of light, it takes more time to prepare and monitor it.

Before entering the atmosphere of insight, he said that he could do the last action at the global control station, he had to wait for an hour before the news ended and then safely landed.

The main image of the article

Picture descriptionOn the surface of Mars on the geological survey [출처: NASA/JPL-Caltech]

A geologist who has rock-shaped planets & # 39; time capsule & # 39; Came on. Insight aims to investigate Earth's rocky planet Mars.

Unlike other curators like Curiosity, they did not have wheels because they did not migrate from the place and were only searching on the landing sites of the Ilias Plane.

At the time of landing, install a seismograph on the surface of the planet using the 1.8 meter long robotic arm. This seismometer measures earthquakes that can be on Mars and compute a beautiful flute to get signals about the planet's nuclei.

It also measures the temperature inside the planet by connecting the heat sensor to the nail, which automatically digs into the 5 meter underground.

Insight is derived from the letter against the Seismical investigation of English research activity (Geodesy and Heat Transport).

Mars is geologically less active than Earth. For this reason, it is believed that the interior of Mars is closer to its original condition, such as the capsule of the shape-shaped planetary capsule.

NASA is expected to recognize Insight's transformational process for billions of years by creating rocky planets and seeing the inner circle of Mars.

Mars does not open the door easily to Mars … "Seven minutes of Fear" = Mars's search continues in various forms, from close ups to rover landings, but only 40% of the mission success rate.

In particular, Mars's atmosphere is only 1% of the planet, so using the force of friction to reduce the original motion of the spacecraft is not enough. Because of this, the United States has only succeeded in landing Mars.

The difficulty of landing on Mars is clear in the case of the European Space Agency (ISA) Mars Exploration Engineers landing in 2016, which failed to control the landing speed and exploded.

The InSite Lake landing site is designed to reduce the risk of land use by using huge plains without rocks, rocks or sand pits.

NASA plans to develop and use its first US Mars lender, Viking 1 July 1976, and the technology used in the Phoenix in May 2008.

When the latest technology of mankind is undertaken, the gusts can hit during the lineage, which can be overturned or scattered in the parachute. However, there is a risk that dust storms that hit the entire Mars in the last summer could interfere with the solar charge, and the footage of the investigation might be faded, or the robot stuck in a hand belt,

Insect Flight Propulsion is separated and takes approximately 6 minutes and 30 seconds to enter the atmosphere with "Arrow shell" thermal shield and top cover. Although the whole process is automated, there are dozens of steps for a successful landing, and there are many unexpected variables, so NASA control calls it "a seven-minute fear".

The main image of the article

Picture descriptionImpression of the Insight Novel Geological Research [AFP=연합뉴스]

EDL = Insight Controllers that should be similar to Cogs, should obtain weather information from the Mars Reconciliation Mission (MRO), which orbit the Mars orbit and enter the program for step-by-step steps of the EDL for the first 3 hours before entering the atmosphere. .

At atmospheric inserts = Insight is positioned so that before facing the atmosphere, the heat shield faces the front. It will enter the atmosphere at an altitude of 114,000 kilometers per hour at 19,800 kilometers per hour. Like the surface of Mars, the entry angle is approximately 12 degrees. If the entry is too low, it will bounce into space. If it is too high, the hull will dissolve with a frictional heat.

Insight hull is designed to withstand 1,500 degrees.

▶ Descending = Entering the atmosphere and reaching up to 11 km, parachutes made of white nylon will be expanded. At this time, the speed is 1,400 km / h. Immediately after deploying the parachute, the shield of the heat is removed at the bottom of the hull and three feet are spread out.

After about two minutes of landing on a parachute, we operate the radar above 2 km and the speed and height of the control.

In less than a minute for the landing, the speed is 215 km. / Hour, and when it reaches more than 1 km, the hull's top security cover and parachute are removed.

Landing = Approximate parachute, almost twelve species of engines are managed to reduce the speed and distance of the distance covered by the parachute. When landing more than 50 meters, the solar panel spreads in the east-west direction and the robot arms are established so that they can be directed in the south direction. At this time, speed 27 km / Hour is there. The speed of reaching the surface of Mars is 8 km per hour.

As soon as it touches the surface, the sensors connected to the three-step are activated and the engine stops and the landing is complete.

The landing time of insights goes down at 3:54, although it is floating. At this time, Mars was included in 8.1 minutes to air on Earth.

It's Tuesday afternoon at 2 o'clock. It is expected to be around 8 degrees below the clear day, but it is less than 96 degrees at night.

Insight sends a position signal to the microwave (uhf) antenna during landing. Two radio telescopes and signals from the Greenban Observatory in West Virginia, US are captured by Max Planck Radio Astronomy Institute in Germany's Apheltsburg.

This signal does not provide more information than the position signal.

Instead, it sends a "beep" signal using the seven-minute x-band antenna after landing, and it is considered to be the fastest signal to confirm the success of the landing, because only when the landing is done properly.

Specifically, in order to test the technology for the future space mission during the landing process, the two wells Marco (Marco), with the size of the brain size, is expected to be 10,000 kilometers behind.

If this babbout, the nickname WALL-E and EVE, is working properly, the insight will go to the ground and it will be able to see success in a few minutes.

The MRO records the insertion of the intersection of blackboards on an airplane, but after about three hours of landing time, it is expected at about 7 o'clock, because it disappears beyond the horizon of Mars and then return after a turn Sent.

Odyssey, which converts the orbits of Mars, will inspect whether the inset is completely opened to the solar panel, which is expected to be around 9.30 am in the morning.

Expert comments about the process of landing insights and control status will be broadcast live on NASA TV.

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