astronomy

Türksat 2A

Türksat 2A 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 Türksat 2A rather than just read about it. In short: Türksat 2A, a.k.a. Eurasiasat 1, was a Turkish communications satellite as part of a project to form an instant network with two geosynchronous satellites that are supervised by the companies Türksat A.Ş. in Turkey and Eurasiasat SAM in Monaco.

Key takeaways

Türksat 2A belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Türksat 2A to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Türksat 2A from memory before moving on to harder problems.

Reference excerpt

Türksat 2A, a.k.a. Eurasiasat 1, was a Turkish communications satellite as part of a project to form an instant network with two geosynchronous satellites that are supervised by the companies Türksat A.Ş. in Turkey and Eurasiasat SAM in Monaco. Türksat 2A was launched by Arianespace atop an Ariane-44P H10-3 launch vehicle on January 10, 2001, at 21:39 UTC from ELA-2 at the Guiana Space Centre in Kourou, French Guiana. The spacecraft was successfully placed into geostationary transfer orbit and then shifted to 42°E position, co-locating with Türksat 1C, which was launched in 1996. Its broadcast traffic entered service on February 1, 2001. Turksat 2A was designed for covering Europe, Turkey on west spot and Turkey and Central Asia including Middle East and Russia on east spot so as to serve simultaneously within that region, and to provide direct connection between Europe and Central Asia. It is based on the Alcatel Spacebus 3000B3 series having an on-orbit mass of 3,530 kg (7,780 lb) with 9,200 W power. The communications payload consists of 36 Ku band transponders consisting of 22 pieces of 33 MHz fixed beam transponders and 10 transponders of 36 MHz bandwidth with two additional steerable beams.

Worked examples

Example 1 — a first encounter with Türksat 2A

Start with the simplest possible case. Write down what Türksat 2A 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 Türksat 2A 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 Türksat 2A 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 Türksat 2A

In research: Türksat 2A 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 Türksat 2A 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: Türksat 2A is common in secondary-school and first-year university syllabi. It links to neighbouring topics Communications satellites in geostationary orbit, Communications satellites of Turkey, Derelict satellites orbiting Earth, so understanding it makes those chapters shorter.
In everyday life: Look for Türksat 2A 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 Türksat 2A in 20 minutes

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

Frequently asked questions

What is Türksat 2A in simple terms?

Why does Türksat 2A 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 Türksat 2A?

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 Türksat 2A.