astronomy

GSAT-31

GSAT-31 is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand GSAT-31 rather than just read about it. In short: GSAT-31 is a high-throughput telecommunication satellite developed by the Indian Space Research Organisation (ISRO). Mission The satellite's main communication payload is Ku band and acts as a replacement of the aging INSAT-4CR.

Key takeaways

GSAT-31 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect GSAT-31 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of GSAT-31 from memory before moving on to harder problems.

Reference excerpt

GSAT-31 is a high-throughput telecommunication satellite developed by the Indian Space Research Organisation (ISRO).

Mission The satellite's main communication payload is Ku band and acts as a replacement of the aging INSAT-4CR. The satellite provides advanced telecommunication to the Indian subcontinent. It is used for VSAT networks, television uplinks, digital signage new gathering, DTH services and other communication systems. This is the 40th communication satellite launched by ISRO and the 22nd launch of ISRO satellite by Arianespace.

Launch The satellite was launched through the 103rd flight of Ariane 5 ECA on 5 February 2019 at 21:01 UTC, the vehicle also deployed Hellas-Sat-4/SaudiGeoSat-1. The launch of the GSAT-30 and GSAT-31 by Arianespace is expected to cost Rs 950 crore.

Relocation In July 2019, GSAT-31 maneuvered to lower its altitude and drifted eastward to reach new slot at 82.95°E on 31 August 2019.

References

Illustrations

Worked examples

Example 1 — a first encounter with GSAT-31

Start with the simplest possible case. Write down what GSAT-31 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to GSAT-31 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about GSAT-31 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of GSAT-31

In research: GSAT-31 appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses GSAT-31 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: GSAT-31 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ariane commercial payloads, Communications satellites in geostationary orbit, GSAT satellites, so understanding it makes those chapters shorter.
In everyday life: Look for GSAT-31 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study GSAT-31 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what GSAT-31 means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain GSAT-31 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is GSAT-31 in simple terms?

GSAT-31 is a high-throughput telecommunication satellite developed by the Indian Space Research Organisation (ISRO). Mission The satellite's main communication payload is Ku band and acts as a replacement of the aging INSAT-4CR.

Why does GSAT-31 matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study GSAT-31?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on GSAT-31.