Tuesday , January 26 2021

Stars align as spacecraft Beresheet prepare for catching the moon



A Beresheet spacecraft has managed to make final movements to position itself in a place where it can jump into the moon's orbit on Thursday, announced the team SpaceIL and Israel Aerospace Industries.

The engineers said they activated the spacecraft for 72 seconds early Monday morning, in what is likely to be one of the last movements before capturing the moon's complex. On Thursday, the spacecraft will reach the moon orbit, and it will need to stimulate the engine on board exactly the right time in order to get into an elliptical orbit around the moon.

The Four-legged Beres Sheet, about the size of a small car, on its last and largest elliptical loop around the Earth before it moved into the moon's orbit on April 4.

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Touchdown is planned for April 11 in the Serenity Sea.

The movement requires ultimate accuracy: if the machines are not stimulated for enough time, the craft will not be captured by pulling the weak gravity of the moon. If the machines are triggered for too long, it could overwhelm the moon completely. A very small window of opportunity where the orbit of the moon crosses the elliptical orbit of the spacecraft.

After overcoming some small threats with an unexpected system reset and some problems with the star navigation tracking system, the spacecraft is on time to make the landing.

A computer simulation shows the route a Beresheet spacecraft will take with the moon, with a series of larger ellipses around the Earth until it reaches orbit around the moon. (courtesy of SpaceIL)

He raised a beresheet, which means “Genesis” in Hebrew, on February 22 from Cape Canaveral in Florida on the top of Falcon 9 rocket of the entrepreneur company of SpaceX, Elon Musk.

Last month, Beresheet sent a picture back to her “autobiography camera”, where the Israeli flag can be seen 37,600 kilometers (23,000 miles) above Earth.

A Beresheet Spacecraft 370 370 million ($ 100 million) is a joint venture between private companies SpaceIL and Israel Aerospace Industries, funded almost entirely by well-known Jewish gifts. The project launched as an Israeli record to the Google LunarX challenge to NGOs to transport a spacecraft on the moon. Google ended the competition in 2018 with no winners, but the Israeli team decided to continue its efforts in private.

With Beresheet, Israel hopes to become a fourth country in the world to land a spacecraft on the moon, following the US, Russia and China.

Exhibit the leaflet before it is launched, December 17, 2018. (Ariel Schalit / AP)

If successful, Beresheet will make history twice: as the private sector's first landing on the Moon, and the first art of Israel to reach the orb.

If Beresheet is landing successfully on April 11, the spacecraft is expected to conduct two or three days of experiments collecting data about magnetic fields of the moon before closing them. There, the 160 kilograms (350 pounds) of the moon's lane will remain, possibly for eternity, on the surface of the moon, joining about 181,000 kilograms (400,000 pounds on the Earth's weight) of artificial remains. They scattered across the surface of the moon.

The distance between the Earth and the Moon is approximately 384,000 kilometers (240,000 miles). An elite Beresheet route, which saves fuel needs by harnessing the Earth's gravity, will cover about 6.5 million kilometers (4 million miles). The spacecraft travels at a speed of about 10 km / second (36,000 km / h) on its way to the moon, or 13 times faster than the F15 jet fighter speed.


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