Tuesday , March 2 2021

View from the Control Room: How to Build InSight on Mars?



In the morning A few hours before NASA's InSight spacecraft entered the atmosphere of Mars, around 30 employees, Lockheed Martin, gathered at the company's InSight Mission Support Area in Denver. They all wore the same red buttoned shirt embellished with a mural patch. Someone was taped with red plastic over some fluorescent lights to lend a Mars atmosphere to the room. There was not much to do except to wait and worry over the last hours before InSight violated the atmosphere of Mars and surfaced.

The engineers had sent the order of descent order to the spaceship several days ago, where they sat on the ship like small bombs and waited for the appropriate time to carry out themselves. Eden We can't do that, Tim says Tim Linn, who pioneered the landing, landing and landing of the spacecraft. When communication is necessary to travel from earth to land, everything is pre-programmed, as the grazing is longer than required for Mars to burn on the surface of Mars.

Scientists and engineers in the Jet Propulsion Laboratory in California discussed mission management and navigation, while Lockheed launched spacecraft operations. This includes the commands that were previously sent to safely place NASA's InSight Lander into Mars. And today is their big day: six months after leaving the Earthy Earth, reaching the Red Planet – hopefully not with a soft plop, but with a shot. The team did a lot of work to make sure there was no second choice, but you know, this is Mars. It's so distant and odd, and only 40 percent of the spacecraft that's aiming to reach Mars has been so successful.

On a giant screen behind Linn's head, the graphic showed the Doppler data from the InSight, the red and blue wavy lines indicating the speed. Lar At this point, we can't get any hiccups, “she says, looking at the rooms of the cells in which they were sitting quietly in front of the team members' computers. Round-tailed labels, each with a Mars image printed as a background, report different parts of the room to be assigned to Ground Data Systems or Failure Protection or Flight Software. Many of the people who now manage the screens have actually helped build the spacecraft. Sarah Brandt, a power systems engineer, spent three months at the Vandenberg Air Force Base to prepare the spacecraft for launch. Today he says it sounds like Christmas morning. Presents, of course: But also pre-painful waiting.

Spaceflight too waiting. An approx. 800-pound craft started in May and has been heading towards Mars ever since. InSight – a backronym for güneş Innovative exploration using Seismic Studies, Geodesy and Heat Transfer bilim – will help scientists understand how rocky planets occur here in the solar system and the rest of the universe.

The first hundred million years of the existence of a planet determines many of its more mature personality traits: what they do, what their atmosphere looks like, a wrapping around a magnetic field. Mars remained in the remnants of these early processes in a way that the Earth did not have with its normal geological constructors.

InSight aims to understand them. A thermometer that has an instrument to measure seismic activity (and collect echoes from meteorite effects), holds a 16-meter beneath the martian surface, and a device to take the rotation of the Red Planet. But these instruments had to make a long journey to Mars to do their work – how many times the people here have sent a spacecraft, it's a tough journey.

InSight was quite safe in the long space of space, but one last mile problem: how to safely land in the atmosphere. Securing the final stage of its transition was the work of the engineers in Lockheed, including the equipment that reduced InSight's design and production to less than 12,300 miles per hour, and down to zero to the surface when it entered the atmosphere.

At the point of entry, the heat shield of InSight heats up to 2700 degrees Fahrenheit to preserve its sensitive parts. The friction from this leg of the journey reduces InSight to less than 1,000 miles per hour. Then a parachute opens and the heat shield drops. Three legs of InSight appear as turtles' legs and scans a radar system for the surface. A parachute tied back shell falls and ignites InSight thrusters.

No sweat.

I am kidding! In any step of this process, the task can go side by side and there is nothing that anyone can do in Lockheed or JPL. Engineers, InSight'e Martian atmosphere, while the news, already landed or collapsed.

As an entry time approached, a small blue dot representing InSight came closer and closer to a Mars illustrated on a distinct screen in Lockheed. Another screen listed the last milestones of the journey and methodically passed them. People mumbled in front of the screens, clustered.

A voice from the Jet Propulsion Laboratory came to the speakers in Denver. According to the sound, two small satellites traveling with InSight were called MarCO's mission. Their task was to get the pings from InSight and send their content back to the World. Radio telescopes in the world have also collected some transmissions from the land.

Soon, the spacecraft was entering the atmosphere. Esi The highest possible dimming during heating is possible, kar he warns. An illustrated version of InSight, which looks like a busy coffee filter, appeared along a screen entitled; Simulated Performance Simulation Yoğun. The horizon line curled under the Mars horizon.

The audio read the speed of InSight: 2000 meters per second. 1,000 meters per second. The parachute says it will soon be activated. But the only way to know if this is happening is to watch a sudden change in speed, a distinctly different Doppler shift of the signal.

When the sound says kısa Doppler sudden change #, the whole room lights up for a short second and then mutes.

… Radar began to look at the ground… 30 meters dı 20 meters bak 17 meters “

And then it comes: Touchdown.

The Bordeaux engineers began to clap again and soon became even tougher. Handshakes Armed Victory Woos turned into full-throated balls.

Or It never gets easier, or he says.

More detailed information about InSight's journey and its physical condition is expected to come from the space ship orbiting Mars: the Mars Discovery Planet and the Mars Odyssey. The Odyssey must confirm whether InSight has successfully commissioned the solar panels; This data, in another area called Deep Space Mission Operations, will reach Lockheed only a multiple of the InSight control room.

The planetary wall paintings on the wall dimensions adorn this downstairs room, where the engineers also operate the spacecraft, such as the Spitzer Space Telescope and OSIRIS-REx, a mission for the return of an asteroid sample, which will reach its goal next month, in addition to these two Mars orbit. Isi How often are we going to land on Mars? “Says Beth Buck, the task manager program manager who, at least on Mars, is more likely to land than most people.

After InSight's safe landing, Buck leaves the room and passes through a wall lined with InSight's art and reality. An item in the gallery lists today's date: 26 November 2018. Landing day. Previously, it had a symbolic meaning – perhaps as a kind of motivational poster. Now he accepts his new identity as a cold, difficult reality.


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