science

Rubin 9.2

Rubin 9.2 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 Rubin 9.2 rather than just read about it. In short: Rubin 9.2 is a German experimental satellite payload launched on 23 September 2009 in 06:21 aboard PSLV-CA rocket at the Satish Dhawan Space Centre in India. Rubin 9.2 shares the host satellite Rubin-9 with another payload, Rubin 9.1.

Key takeaways

Rubin 9.2 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Rubin 9.2 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Rubin 9.2 from memory before moving on to harder problems.

Reference excerpt

Rubin 9.2 is a German experimental satellite payload launched on 23 September 2009 in 06:21 aboard PSLV-CA rocket at the Satish Dhawan Space Centre in India. Rubin 9.2 shares the host satellite Rubin-9 with another payload, Rubin 9.1. The Rubin-9 "satellite" (COSPAR 2009-051F) was actually the upper stage of the carrier rocket to which the payloads were solidly bolted onto; after the rocket had finished its mission with the primary payload, the upper stage remained in space and became "satellite" Rubin-9. Rubin 9.2 was developed by OHB System to continue their series of AIS receiver experiments that they had performed on previous Rubin-flights. AIS is a network used to find shipping vessels and identify them. Non-operational as of 2019, its orbit was 792 * 712 km, at 98°.

References

Worked examples

Example 1 — a first encounter with Rubin 9.2

Start with the simplest possible case. Write down what Rubin 9.2 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 Rubin 9.2 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 Rubin 9.2 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 Rubin 9.2

In research: Rubin 9.2 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 Rubin 9.2 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: Rubin 9.2 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2009 in Germany, Satellites of Germany, Spacecraft launched in 2009, so understanding it makes those chapters shorter.
In everyday life: Look for Rubin 9.2 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 Rubin 9.2 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Rubin 9.2 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 Rubin 9.2 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Rubin 9.2 in simple terms?

Why does Rubin 9.2 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 Rubin 9.2?

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 Rubin 9.2.