Тарелкин Евгений

The seventh subject from the head «Space education. Explanations and stories of cosmonauts» is a story of Evgeny Tarelkin about Uragan experiment.

Good day, today we continue our series of broadcasts about experiments conducted onboard the ISS. This series is dedicated to geophysical experiments. Today I’m going to talk a little about th Uragan experiment, which is currently being conducted onboard the ISS. I’ll begin with explaining what this experiment is intended for, what is the objective of this experiment.

The key objective of this experiment is to observe and monitor natural disasters occurring on the Earth’s surface. Another objective is to accumulate statistical data, which are then entered into a database, and these data can even be used to make some predictions about natural disasters. That’s what Uragan is about. Moreover, during many disastrous events on Earth cosmonauts were observing these phenomena, in some cases even predicting them, and, as I already mentioned, accumulating a database, so that in the future the people who are staying the area of an impending disaster could be forewarned, thus making it possible to avoid casualties.

The Uragan experiment has been running onboard the station for several year now, so how is it being conducted? A radiogram is uplinked to the ISS. The radiogram may take a form of a simple string of characters, that is, Form 24 radiogram, which specifies the time when the experiment is conducted, or, as a novelty, it may use the iPads now available onboard the station. I’ve now opened the page, I receive a radiogram, and that radiogram gives me the time, the date and the Earth surface area which needs to be observed. What is also very helpful to a cosmonaut is that they send photographs, satellite pictures, schematics of those areas which the cosmonaut is supposed to photograph. These are the areas of either potential disasters, or those which are currently happening: volcanic eruptions, floods, tsunamis. This is fairly convenient and makes the work of a cosmonaut much easier because I can know in advance the time of passing over this target. I also already have a picture of the area and it’s easier for me to orient myself. That is, when I fly over a target I already have some idea of where that target is. I can find for myself some reference points in advance. That’s convenient, because it reduces the response time. Let’s say that this morning some volcano became active, and we receive such a radiogram. I can study it and respond to it within half an hour. Let me show you how all of this happens, so to say, in action. As you already understood, I’ve received a radiogram, took a camera, and, of course, I need to run a program which reads coordinates of the targets. That’s what I’m doing right now.

Using a USB cable I hook up to the computer an emitter platform. And you can see that the LEDs are flashing. This means that this emitter platform is powered up. The only thing that is left now is to run the program itself. It’s very easy to run it. There is an icon on the computer desktop and double-clicking this icon launches the program. You can now see a schematic representation of the sensors installed on the platform, and there is even a schematic representation of a camera and response sensors installed on the camera. Now, in principle we are ready to start taking pictures of the targets. So you can see the virtual response of the sensors, and, accordingly, the program recalculates the camera position in space. And after that, that’s how we perform the experiment. The target approaches, and the Sigma program can even give us a hint when this is going to happen, and the only thing which is left for the cosmonaut to do is to visually detect the target and push the button. That’s it, the picture of the target is taken. Now all of this, all this information remains on the disk inside the camera, while the data about the position of the target, that is, the coordinates of the target are fed into the computer and entered into the database. All that is left for the cosmonaut to do now is to send the pictures of the target and the files with coordinates down to Earth.

So I’ve told you briefly about the Uragan experiment. I believe that this was of some interest to you. And we, in our turn will continue to tell you about experiments conducted onboard the ISS. All the best to you, see you soon!

Рассказ Евгения Тарелкина об э...
Рассказ Евгения Тарелкина об эксперименте «Ураган»




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