science

Progress M1-4

Progress M1-4 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 Progress M1-4 rather than just read about it. In short: Progress M1-4, identified by NASA as Progress 2P, was a Progress spacecraft used to resupply the International Space Station. It was a Progress M1 11F615A55 spacecraft, with the serial number 253.

Key takeaways

Progress M1-4 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Progress M1-4 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Progress M1-4 from memory before moving on to harder problems.

Reference excerpt

Progress M1-4, identified by NASA as Progress 2P, was a Progress spacecraft used to resupply the International Space Station. It was a Progress M1 11F615A55 spacecraft, with the serial number 253.

Launch and first docking Progress M1-4 was launched by a Soyuz-U carrier rocket from Site 1/5 at the Baikonur Cosmodrome. Launch occurred at 01:32:36 UTC on 16 November 2000. The spacecraft docked with the Nadir port of the Zarya module at 03:47:42 UTC on 18 November. The Kurs docking system failed during docking, and the manual backup, TORU, was used for the docking. Progress M1-4 remained docked for two weeks before undocking at 16:22:52 UTC on 1 December.

Second docking Following its undocking, Progress M1-4 spent 25 days in free flight, prior to redocking with the same port on 26 December at 11:03:13 UTC. Like the original docking, the TORU system was used, as although the fault with the Kurs system had been resolved, the procedure used to abort the original Kurs docking attempt was irreversible due to the retraction of an antenna that could not be redeployed. It remained docked for 44 days before undocking again at 11:26:04 UTC on 8 February 2001. It was deorbited at 12:59 UTC on the same day. The spacecraft burned up in the atmosphere over the Pacific Ocean, with any remaining debris landing in the ocean at around 13:50 GMT. Progress M1-4 carried supplies to the International Space Station, including food, water and oxygen for the crew and equipment for conducting scientific research. It was the first Progress spacecraft to resupply an Expedition crew aboard the ISS. Progress M1-4 was the first Progress spacecraft to make two dockings with the ISS, a feat that was not repeated until Progress M-15M in 2012.

Illustrations

Worked examples

Example 1 — a first encounter with Progress M1-4

Start with the simplest possible case. Write down what Progress M1-4 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 Progress M1-4 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 Progress M1-4 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 Progress M1-4

In research: Progress M1-4 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 Progress M1-4 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: Progress M1-4 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Progress (spacecraft) missions, Spacecraft launched by Soyuz-U rockets, Spacecraft launched in 2000, so understanding it makes those chapters shorter.
In everyday life: Look for Progress M1-4 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 Progress M1-4 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Progress M1-4 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 Progress M1-4 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Progress M1-4 in simple terms?

Progress M1-4, identified by NASA as Progress 2P, was a Progress spacecraft used to resupply the International Space Station. It was a Progress M1 11F615A55 spacecraft, with the serial number 253.

Why does Progress M1-4 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 Progress M1-4?

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 Progress M1-4.