science

Visual Monitoring Camera

Visual Monitoring Camera 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 Visual Monitoring Camera rather than just read about it. In short: The Visual Monitoring Camera (VMC), also known as the Video Monitoring Camera and Mars Webcam, is a small camera mounted on Mars Express spacecraft. It is operated by the Mars Express Flight Control Team at ESOC in Darmstadt, Germany.

Key takeaways

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

Reference excerpt

The Visual Monitoring Camera (VMC), also known as the Video Monitoring Camera and Mars Webcam, is a small camera mounted on Mars Express spacecraft. It is operated by the Mars Express Flight Control Team at ESOC in Darmstadt, Germany. Originally, VMC was a technical camera to monitor the separation of the Beagle 2 lander, but after a few years, it was repurposed into Mars Webcam, streaming its data to the web and even being used for science. Starting in 2007, the VMC was used for the Mars Webcam project, where it takes global views of Mars at a high cadence and they are posted online. The VMC is a camera-on-chip design, using the IRIS-1 system. Originally used as engineering monitoring camera for the Beagle 2 lander, it has a wide 40° field of view and limited imaging controls and it has no focus mechanism. In 2016, it was used for professional science in addition to its roles as a technical monitoring camera and public outreach.

History The camera was included on the Mars Express mission with the singular goal of monitoring the deployment of the Beagle 2 lander, which occurred on 19 December 2003 at 08:31 UTC. After performing this task, the VMC remained unused, having no intended scientific purpose. In 2007, it was checked out and turned on for educational and science outreach. The Mars Webcam project was born and proved popular with the public, offering wide-angle shots of Mars on a regular basis. The VMC was adopted as a science instrument in early 2016, in a collaboration between ESA and the University of the Basque Country's Planetary Sciences Group. This collaboration will conduct a two-year study of the images returned by VMC, which provide a global view of the planet and allow for the study of planetary phenomena, including changes in the ice caps, dust storms and cloud activity. The European Space Agency occasionally establishes campaigns inviting people to propose targets to be imaged by the cameras, such as the event on 25–27 May 2015. As of October 2017, more than 21,000 images had been returned. New images are published to the camera's Flickr account in a fully automated process as they are received from the spacecraft, sometimes in as little as 75 minutes from when the photograph was taken at Mars. All images produced by the VMC are released under a Creative Commons Attribution/ShareAlike license (CC BY-SA 3.0 IGO). On June 3, 2023, to celebrate the 20th anniversary of Mars Express, a livestream of images from the camera was streamed online, which was the first livestream direct from Mars.

Technical specifications Specifications of the VMC are:

CMOS based (IMEC IRIS-1) B/W + RGB filters Image size: 640×480 pixels Pixel depth: 8 bits Field of view: 40×31 degrees Approximate distance from Mars surface: 300–10,000 km (190–6,210 mi) Calculated resolution at 300 km: 0.347 km/pixel (0.216 mi/px) Calculated resolution at 10,000 km: 11.5 km/pixel (7.1 mi/px) Mass: 430 g (0.95 lb) Size: 65 × 60 × 108 mm (2.6 × 2.4 × 4.3 in)

Observation targets Noted observations:

Beagle 2 Mars 2018 Martian dust storm

See also JunoCam (another Education/Public outreach space camera on a space probe)

Notes

References

External links Mars Webcam Photostream at Flickr.com Mars Webcam Blog by the European Space Agency An ordinary camera in an extraordinary location: Outreach with the Mars Webcam

Illustrations

Worked examples

Example 1 — a first encounter with Visual Monitoring Camera

Start with the simplest possible case. Write down what Visual Monitoring Camera 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 Visual Monitoring Camera 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 Visual Monitoring Camera 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 Visual Monitoring Camera

In research: Visual Monitoring Camera 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 Visual Monitoring Camera 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: Visual Monitoring Camera is common in secondary-school and first-year university syllabi. It links to neighbouring topics Mars Express, Mars imagers, so understanding it makes those chapters shorter.
In everyday life: Look for Visual Monitoring Camera 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 Visual Monitoring Camera in 20 minutes

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

Frequently asked questions

What is Visual Monitoring Camera in simple terms?

Why does Visual Monitoring Camera 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 Visual Monitoring Camera?

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 Visual Monitoring Camera.