The first Space debris capture experiment begins.Let's prepare for the space garbage quiz

Space sweeper finally to the sky.

As the sky above the earth becomes a Pacific garbage belt, Astroscale in Japan will conduct the world's first cosmic garbage capture experiment on the 20th of next month.The demonstration satellite "ELSA-D" was placed on the Soyuzed rocket, launched from the Kazakhstan's Baikonur base, released it into tracks, and collected the following three experiments.

1) Capture by disconnecting without adding spins to the mock debris

2) Add spin to pseudo debris and separate to capture

3) Add the spin to the pseudo debris until it is invisible, discover, approach, and capture

It is a mission that burns out by re -entering the atmosphere.

Prior to this, on the 18th, an official website to think about space garbage together has also been launched, and we are currently recruiting members (Space Sweepers. Only in Japan).Follow @astroscale_jp and answer the 4 -choice of space garbage announced in the tweet during the period of March 4 to 17, the first 150 people by lottery (50 first, Amazon Gift) or Amazon Gift.A ticket 1,000 yen (first 100 people) will be hit (Click here for details).

I don't know the contents of the quiz at all, but I have to know this!I collected what I thought and prepared a cosmic garbage mock quiz.Do you have all questions?

Q1.What percentage of the launches will be space garbage?

A: 94%

B: 78%

C: 54%

D: 32%

Q2.What is the probability that a TESLA car will fall to the earth?

February 6, 2018 Tesla roadster released to space in Falcon Heavy.It was scheduled to be "billions of years drifting" (Elon Musk) between the Earth and Mars, but I used up all the fuel of the second stage rocket and flew to the asteroid belt between Mars and Jupiter.I got it.It turned out that Toronto University would eventually fall to the earth when calculated again.By the way, what is the probability?

A: 90%

B: 50%

C: 6%

D: 0.3 %

Q3.Where is the country that has recently been angry by shooting down satellites?

In 2017, where was the world's largest mini satellite in the world, shot down one of them in 2019, showed off military power in the world, and bought a Hinshuku, saying, "Don't scatter garbage?"

A: US

B: Russia

C: China

D: India

Q4.What is the movement speed of space garbage?

A: 700-800km / h

B: H / h 70-80km

C: Frequently speed 7-8km

D: Changs 7-8km

Q5.What is the ghost satellite that is around low orbit (altitude 2,000 km or less)?

A: 200 units

B: 3,000

C: 22,000

D: 34,000

Q6.How many cosmic garbage is less than 10cm wide in low orbit?

A: 2,000 pieces

B: 22,000 pieces

C: 34,000 pieces

D: 56,000 pieces

Q7.How many cosmic garbage of 1 to 10 cm wide in low orbit?

A: 5,000 pieces

B: 60,000 pieces

C: 700,000 pieces

D: 900,000 pieces

Q8.How many cosmic garbage is less than 1cm wide in low orbit?

A: 50,000 pieces

B: 600,000 pieces

C: 14 million

D: 130 million pieces

Answer

A1: A

A2: C The Earth approach in 2091.There is a little chance of hitting Venus.

A3: "Mission Shakti" destroys artificial satellites around the track of 300 km altitude.400 garbage scattered in low orbit."Even China experimented with A-SAT (altitude of 800 km) in 2007. India is a low-tracket, so it burns in a few weeks, but Chinese debris is still in outer space, so it has a worse nature."And India refuts.

A4: The relative speed when D collision is 10 km per second.It's a tremendous shock.

A5: B

A6: C

A7: D

A8: D

Well, anyway, one million dust is flying around the earth at 7 to 8 km per second.Even if it is a small thing, the speed is amazing anyway, so if you hit it, the window of the ISS will be broken.I'm so scared that I was so crowded and I couldn't go up.Let's pray for the success of the experiment.

Source: Astroscale Via Impress Watch