What is Spike Non Line of Sight (NLOS) Anti-tank Guided Missile (ATGM)?

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About Spike Non Line of Sight (NLOS) Anti-tank Guided Missile (ATGM)

It is a fire-and-forget anti-tank and anti-personnel missile with a tandem-charge high-explosive warhead.
It is developed by Rafael Advanced Defense Systems, a defence technology company based in Israel.
It is available in man-portable, vehicle-launched, and helicopter-launched variants.
Spike missiles are being used by the defence forces of Israel and another 38 countries, including India, Netherlands, Germany, Italy, Peru, Spain, Belgium, Brazil, Canada, UK, Philippines, and Singapore.
Features:
- It can hit targets from distances of up to 30 kilometres.
- Weight: 71 kg
- It uses an electro-optical seeker that enables the launch operator to clearly see targets, unlike missiles reliant on radar or infrared guidance.
- The seeker is also coupled to a datalink that enables the launch operator to control the missile in flight to attack different parts of a tank or select another target, if not abort the strike.
- It can be armed with different types of warheads suited to destroy tanks, air defence systems or for use in urban combat.

Q1) What is an electro-optical seeker?

An electro-optical seeker, also known as an EO seeker, is a critical component of many guided missile systems and smart munitions. It is an advanced targeting system that uses electro-optical sensors and technology to track and home in on a target. Electro-optical seekers are commonly used in precision-guided weapons, such as anti-ship missiles, air-to-surface missiles, and guided bombs.

Source: India Gets Israeli ‘Tank-Killer’ Spike NLOS; IAF To Equip Russia-Made Mi-17V5 With Deadly Missiles