science

TV-Sat 2

TV-Sat 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 TV-Sat 2 rather than just read about it. In short: TV-SAT 2 or TVSAT-2 was a West German communications satellite which was to have been operated by Deutsche Bundespost. It was intended to be used to provide television broadcast services to Europe.

Key takeaways

TV-Sat 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 TV-Sat 2 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of TV-Sat 2 from memory before moving on to harder problems.

Reference excerpt

TV-SAT 2 or TVSAT-2 was a West German communications satellite which was to have been operated by Deutsche Bundespost. It was intended to be used to provide television broadcast services to Europe. It was constructed by Aérospatiale, based on the Spacebus 300 satellite bus, and carried five Ku-band transponders. At launch it had a mass of 2,144 kg (4,727 lb), and an expected operational lifespan of eight years.

Launch TV-SAT 2 was launched with the Hipparcos scientific satellite by Arianespace using an Ariane 44LP H10 launch vehicle flying from ELA-2 at Centre Spatial Guyanais, Kourou, French Guiana. The launch took place at 23:25:53 UTC on 8 August 1989. It was a Spacebus 300 satellite bus.

Mission TV-SAT 2 was placed into a geostationary orbit at a longitude of 19.2° West. It was available on 25 August 1989 to broadcast the Berlin's TV show. It was leased to TeleTV AS and co-located with Intelsat 702 in 1995. In November 1998, TV-Sat 2 was leased to Eutelsat and moved to 12.5° West.

Worked examples

Example 1 — a first encounter with TV-Sat 2

Start with the simplest possible case. Write down what TV-Sat 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 TV-Sat 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 TV-Sat 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 TV-Sat 2

In research: TV-Sat 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 TV-Sat 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: TV-Sat 2 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Communications satellite stubs, Communications satellites of Germany, Spacecraft launched by Ariane 4 rockets, so understanding it makes those chapters shorter.
In everyday life: Look for TV-Sat 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 TV-Sat 2 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what TV-Sat 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 TV-Sat 2 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is TV-Sat 2 in simple terms?

TV-SAT 2 or TVSAT-2 was a West German communications satellite which was to have been operated by Deutsche Bundespost. It was intended to be used to provide television broadcast services to Europe.

Why does TV-Sat 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 TV-Sat 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 TV-Sat 2.