TARGET UPSC by Dr.Sudarshan Lodha (AIR 571 )
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Types of Asteroid:

NASA
has classified asteroids based on their composition

1-C-type (chondrite): such asteroids are made up of clay and silicate rocks
2-S-types (stony): these are composed of silicate materials and nickel-iron
M-types (metallic): such asteroids have a metallic composition.
#prelim_2020 #Space
#Target_Shots
@ Some asteroids go in front of and behind Jupiter. They are called Trojans.
@ Asteroids that come close to Earth are called Near Earth Objects, NEOs for
short.
@ NASA keeps close watch on these asteroids.
GRAPES-3 experiment:

1) GRAPES-3 experiment (or Gamma Ray Astronomy PeV EnergieS phase-3) is an India-Japanese collaboration. It is a special telescope-array established in Ootyto detect muons from cosmic ray.
2)
It can be used to study solar storms and space weather at distances up to two times the earth's radius.
3) First time in the world, researchers at the GRAPES-3 muon telescope facility in Ooty have measured the electrical potential, size and height of a thundercloud
4)
Learning about the properties of thunderclouds can be useful in navigation of aircraft and preventing short circuits.
#target_shots #prelim_2020 #Space
Also Know
What is MUONs ?
A-SAT Missile
#️⃣ About the Missile
It is an interceptor missile that destroys or jams satellites in space.
Two types of A-SATs:
1. Kinetic A-SATs, like ballistic missiles.
2. Non-Kinetic: Which include frequency jamming, blinding lasers or cyber-attacks.
➡️ India’s Test of A-SAT Missile
@ India successfully conducted (A-SAT) missile test from Dr. APJ Abdul Kalam Island launch complex (Odisha).
@ developed by the DRDO under Mission Shakti.
@ It defend India’s space assets.
India became the fourth country -after USA, Russia, and China.
@ The A-SAT technology has a ‘hit to kill’ feature .

#Target_Shots #Space #prelim_2020