science

Soyuz TM-17

Soyuz TM-17 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 Soyuz TM-17 rather than just read about it. In short: Soyuz TM-17 was a Russian spaceflight to the space station Mir, launched on July 1, 1993. It carried Russian cosmonauts Vasily Tsibliyev and Aleksandr Serebrov, along with French astronaut Jean-Pierre Haigneré.

Key takeaways

Soyuz TM-17 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Soyuz TM-17 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Soyuz TM-17 from memory before moving on to harder problems.

Reference excerpt

Soyuz TM-17 was a Russian spaceflight to the space station Mir, launched on July 1, 1993. It carried Russian cosmonauts Vasily Tsibliyev and Aleksandr Serebrov, along with French astronaut Jean-Pierre Haigneré. It lasted 196 days and 17 hours, making more than 3,000 orbits of the planet Earth.

Crew

Mission highlights Soyuz TM-17 was the 17th expedition to the Russian Space Station Mir. At 7:37:11 a.m. Moscow time (MT), on 1994 January 14, Soyuz TM-17 separated from the forward port of the Mir station. At 7:43:59 a.m., the Mission Control Center in Korolev (TsUP) ordered Tsibliyev to steer Soyuz TM-17 to within 15 metres of the Kristall module to begin photography of the APAS-89 docking system. At 7:46:20 a.m., Tsibliyev complained that Soyuz TM-17 was handling sluggishly. Serebrov, standing by for photography in the orbital module, then asked Tsibliyev to move the spacecraft out of the station plane because it was coming close to one of the solar arrays. In Mir, Viktor Afanasyev ordered Valeri Polyakov and Yuri Usachyov to evacuate to the Soyuz TM-18 spacecraft. At 7:47:30 a.m., controllers in the TsUP saw the image from Soyuz TM-17's external camera shake violently, and Serebrov reported that Soyuz TM-17 had hit Mir. The TsUP then lost communications with Mir and Soyuz TM-17. Intermittent communications were restored with Soyuz TM-17 at 7:52 a.m. Voice communications with Mir were not restored until 8:02 a.m. Inspection of Soyuz TM-17 indicated no serious damage. In this connection, the Russians revealed that they had studied contingency reentries by depressurized spacecraft in the wake of the Soyuz 11 accident. The Mir cosmonauts did not feel the impact, though the station's guidance system registered angular velocity and switched to free flying mode. Later analysis indicated that the right side of the orbital module had struck Mir two glancing blows 2 seconds apart. The impact point was on Kristall, near its connection to the Mir base block. The cause of the impact was traced to a switch error: the hand controller in the orbital module which governed braking and acceleration was switched on, disabling the equivalent hand controller (the left motion control lever) in the descent module. Tsibliyev was able to use the right lever to steer the Soyuz past Mir's solar arrays, antennas, and docking ports after it became clear impact was inevitable.

References

Illustrations

Worked examples

Example 1 — a first encounter with Soyuz TM-17

Start with the simplest possible case. Write down what Soyuz TM-17 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 Soyuz TM-17 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 Soyuz TM-17 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 Soyuz TM-17

In research: Soyuz TM-17 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 Soyuz TM-17 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: Soyuz TM-17 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Crewed Soyuz missions, Human spaceflights to Mir, Spacecraft launched in 1993, so understanding it makes those chapters shorter.
In everyday life: Look for Soyuz TM-17 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 Soyuz TM-17 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Soyuz TM-17 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 Soyuz TM-17 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Soyuz TM-17 in simple terms?

Why does Soyuz TM-17 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 Soyuz TM-17?

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 Soyuz TM-17.