science

VNREDSat-1

VNREDSat-1 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 VNREDSat-1 rather than just read about it. In short: VNREDSat-1 (short for Vietnam Natural Resources, Environment and Disaster Monitoring Satellite, also VNREDSat-1A) is the first optical Earth Observing satellite of Vietnam; its primary mission is to monitor and study the effects of climate change, predict and take measures to prevent natural disasters, and optimise the management of Vietnam's natural resources. Satellite The VNREDSat-1 was built in Toulouse by EADS…

Key takeaways

VNREDSat-1 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect VNREDSat-1 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of VNREDSat-1 from memory before moving on to harder problems.

Reference excerpt

VNREDSat-1 (short for Vietnam Natural Resources, Environment and Disaster Monitoring Satellite, also VNREDSat-1A) is the first optical Earth Observing satellite of Vietnam; its primary mission is to monitor and study the effects of climate change, predict and take measures to prevent natural disasters, and optimise the management of Vietnam's natural resources.

Satellite The VNREDSat-1 was built in Toulouse by EADS Astrium. During the project 15 Vietnamese engineers were integrated and trained by the Astrium team. The VNREDSat-1 system is based on the Astrium operational AstroSat100 satellite, used for the SSOT programme developed with Chile or the ALSAT-2 satellite system developed with Algeria. The 120 kg satellite will image at 2.5 m in panchromatic mode and 10 m in multi-spectral mode (four bands) with a 17.5 km swath, and will orbit at 600–700 km in a Sun-synchronous orbit.

Launch The satellite was launched from ELV at the Guiana Space Centre by the Vega VV02 rocket at 02:06:31 UTC on 7 May 2013 together with the PROBA-V and ESTCube-1 satellites.

References

Worked examples

Example 1 — a first encounter with VNREDSat-1

Start with the simplest possible case. Write down what VNREDSat-1 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 VNREDSat-1 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 VNREDSat-1 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 VNREDSat-1

In research: VNREDSat-1 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 VNREDSat-1 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: VNREDSat-1 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2013 in Vietnam, Earth imaging satellites, Satellites of Vietnam, so understanding it makes those chapters shorter.
In everyday life: Look for VNREDSat-1 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 VNREDSat-1 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what VNREDSat-1 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 VNREDSat-1 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is VNREDSat-1 in simple terms?

Why does VNREDSat-1 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 VNREDSat-1?

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 VNREDSat-1.