science

Kosmos 1109

Kosmos 1109 is a science 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 Kosmos 1109 rather than just read about it. In short: Kosmos 1109 (Russian: Космос 1109 meaning Cosmos 1109) was a Soviet US-K missile early warning satellite which was launched in 1979 as part of the Soviet military's Oko programme. The satellite was designed to identify missile launches using optical telescopes and infrared sensors.

Key takeaways

Kosmos 1109 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Kosmos 1109 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Kosmos 1109 from memory before moving on to harder problems.

Reference excerpt

Kosmos 1109 (Russian: Космос 1109 meaning Cosmos 1109) was a Soviet US-K missile early warning satellite which was launched in 1979 as part of the Soviet military's Oko programme. The satellite was designed to identify missile launches using optical telescopes and infrared sensors. Kosmos 1109 was launched from Site 41/1 at Plesetsk Cosmodrome in the Russian SSR. A Molniya-M carrier rocket with a 2BL upper stage was used to perform the launch, which took place at 18:11 UTC on 27 June 1979. The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1979-058A. The United States Space Command assigned it the Satellite Catalog Number 11417. Kosmos 1109 maneuvered into an operational orbit about 19 July, 1979. The payload was "lost" after 17 February 1980 and three pieces of debris were soon found that could be traced back to that period. It self-destructed. Other pieces of debris have been found since then. The primary piece remains in orbit but several pieces of debris have since decayed.

Worked examples

Example 1 — a first encounter with Kosmos 1109

Start with the simplest possible case. Write down what Kosmos 1109 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Kosmos 1109 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 Kosmos 1109 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 Kosmos 1109

In research: Kosmos 1109 appears in science 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 Kosmos 1109 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: Kosmos 1109 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1979 in spaceflight, Kosmos satellites, Oko, so understanding it makes those chapters shorter.
In everyday life: Look for Kosmos 1109 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 Kosmos 1109 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Kosmos 1109 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 Kosmos 1109 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Kosmos 1109 in simple terms?

Why does Kosmos 1109 matter?

Because it connects several science 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 Kosmos 1109?

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 Kosmos 1109.