science

Intelsat 704

Intelsat 704 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 Intelsat 704 rather than just read about it. In short: Intelsat 704 (also known as IS-704 and Intelsat 7-F4) is a geostationary communication satellite that was built by Space Systems/Loral (SSL). It is located in the orbital position of 29.5 degrees east longitude and it is currently in an inclined orbit.

Key takeaways

Intelsat 704 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Intelsat 704 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Intelsat 704 from memory before moving on to harder problems.

Reference excerpt

Intelsat 704 (also known as IS-704 and Intelsat 7-F4) is a geostationary communication satellite that was built by Space Systems/Loral (SSL). It is located in the orbital position of 29.5 degrees east longitude and it is currently in an inclined orbit. The same is owned by Intelsat and after sold to SES World Skies on November 30, 1998. The satellite was based on the LS-1300 platform and its estimated useful life was 15 years. The satellite was successfully launched into space on January 10, 1995, at 06:18, using an Atlas II vehicle from the Cape Canaveral Air Force Station, United States. It had a launch mass of 3,695 kg. The Intelsat 704 is equipped with 26 transponders in C band and 10 in Ku band to provide broadcasting, business-to-home services, telecommunications, VSATnetworks.

Specifications Apogee: 36,117.4 kilometres (22,442.3 mi) Perigee: 36,088.6 kilometres (22,424.4 mi) Semimajor axis: 42,473 kilometres (26,391 mi) Orbital inclination: 6.9° Orbital period: 24,54 hours Propulsion: R-4D-11 Power: 5 transponders of 35 W and 5 transponders of 50 W Bandwidth: 6 transponders of 72 MHz and 4 transponders of 112 MHz EIRP: Spot 1: 45.4 dBW, Spot 2: 44.5 dBW, and Spot 3: 46 dBW Polarization: Linear Beacons: 11.701 GHz, 12.501 GHz (linear)11.198 GHz, 11.452 GHz (RHCP) Frequency: Downlink 10.95-11.20 GHz, 11.45-11.70 GHz,11.70-11.95 GHz, and 12.50-12.75 GHz

External links Intelsat 704 TBS satellite Intelsat 7 Gunter's Space Page Intelsat 704 SatBeams

Worked examples

Example 1 — a first encounter with Intelsat 704

Start with the simplest possible case. Write down what Intelsat 704 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 Intelsat 704 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 Intelsat 704 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 Intelsat 704

In research: Intelsat 704 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 Intelsat 704 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: Intelsat 704 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Intelsat satellites, Spacecraft decommissioned in 2009, Spacecraft launched in 1995, so understanding it makes those chapters shorter.
In everyday life: Look for Intelsat 704 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 Intelsat 704 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Intelsat 704 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 Intelsat 704 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Intelsat 704 in simple terms?

Why does Intelsat 704 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 Intelsat 704?

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 Intelsat 704.