science

OPS 3762

OPS 3762 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 OPS 3762 rather than just read about it. In short: OPS 3762, also known as FTV-2355, was an American reconnaissance satellite which was launched in 1964. It was the first radar imaging satellite to be launched, and the only Quill spacecraft to fly.

Key takeaways

OPS 3762 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect OPS 3762 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of OPS 3762 from memory before moving on to harder problems.

Reference excerpt

OPS 3762, also known as FTV-2355, was an American reconnaissance satellite which was launched in 1964. It was the first radar imaging satellite to be launched, and the only Quill spacecraft to fly. Its mission was to demonstrate radar imaging techniques for future missions. However, the programme was cancelled before any more satellites were launched. OPS 3762 was successfully launched aboard a Thrust Augmented Thor SLV-2A Agena-D carrier rocket, flying from Launch Complex 75-1-1 at the Vandenberg Air Force Base. The launch, which was the last orbital launch of the year, occurred at 19:08:56 UTC on 21 December 1964, and successfully placed the spacecraft into the low Earth orbit in which it conducted its mission. Owing to concerns that using radar over the Soviet Union may have been seen as provocative, OPS 3762 conducted imaging tests over the Northwestern United States instead. OPS 3762 was a 1,500 kilograms (3,300 lb) spacecraft, based on the Agena-D which also served as the upper stage of its carrier rocket. It operated for four days. Its orbit had a perigee of 208 kilometres (129 mi), an apogee of 222 kilometres (138 mi), 70 degrees of inclination, and an orbital period of 88.8 minutes. Its side looking airborne radar produced images, which were returned in a KH-4 film capsule at the end of the mission. OPS 3762 itself remained in orbit until 11 January 1965, when its orbit decayed and it reentered the atmosphere. OPS 3762 completed its mission successfully.

Worked examples

Example 1 — a first encounter with OPS 3762

Start with the simplest possible case. Write down what OPS 3762 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 OPS 3762 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 OPS 3762 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 OPS 3762

In research: OPS 3762 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 OPS 3762 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: OPS 3762 is common in secondary-school and first-year university syllabi. It links to neighbouring topics American spacecraft stubs, Space synthetic aperture radar, Spacecraft launched in 1964, so understanding it makes those chapters shorter.
In everyday life: Look for OPS 3762 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 OPS 3762 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what OPS 3762 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 OPS 3762 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is OPS 3762 in simple terms?

OPS 3762, also known as FTV-2355, was an American reconnaissance satellite which was launched in 1964. It was the first radar imaging satellite to be launched, and the only Quill spacecraft to fly.

Why does OPS 3762 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 OPS 3762?

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 OPS 3762.