Friday, May 8, 2015

ISS in anticipation of the “Dragon” – BBC

Federal Space Agency is preparing to evacuate the International Space Station, which has remained without any additional food supplies and air for the crew because of the wreck of the cargo ship “Progress”. According to “Gazeta.ru” one of the top managers of the corporation, it is now worked out the three most likely scenarios on board the station.

In the first scenario, leave the station in May, three of the six members of the crew, the other three are still on board and waiting for the next truck, which is planned to send to the ISS on June 19.

The second scenario assumes a descent in May, all six crew members with conservation station to determine the reasons for the failure of “progress”.

And the third – the scheduled replacement of the crew before the end of May instead of three astronauts who came to earth, the station went on the following three. Thus, waiting for the next truck astronauts will have six of them.

At present, the ISS is a crew of six people: Terry Verts Anton Shkaplerov, Samantha Kristoforetti, Gennady Padalka, Mikhail Kornienko and Scott Kelly. Shkaplerov, Kristoforetti and Verts must return to Earth on May 14 before landing Gennady Padalka and Kornienko and Kelly have to spend a year in orbit. On May 26 scheduled flight Oleg Kononenko, Kimia Yui and Chella Lindgren.

The press service of the Russian Space Agency “Gazeta.ru” reported that June 19 is scheduled the start of the American cargo ship Dragon, as of August 6 – starting Russian “truck”, “Progress M-28M”. Furthermore, on 17 August this year will go to the ISS Japanese transport ship HTV.

«Now stocks of food, water and oxygen at the station there somewhere for two months. That is, the astronauts safely live to the end of June, when the scheduled flight of the American truck. But until the next “progress”, which must fly in August – no longer exists. If the June flight, for whatever reasons, will be delayed or fails, we will of course withdraw the crew to orbit “- told” Gazeta.ru “representative of the Russian Space Agency.

He added that the supply system station was built based on one missed the cycle: “That is all the reserves are formed, taking into account the fact that there should not be enough until the next truck, and in one ».

This technology takes into account all restocking launches to the ISS – both Russian and American and European. “It is the whole logistics system, which is involved in ensuring the delivery. It is clear that whenever you vozish things portions, you create a reserve “- he added” Gazety.Ru “.

Launch to the ISS cargo spacecraft “Progress M-27M” April 28 ended in failure, communication with him I was lost, but on Friday night it burned up in the atmosphere over the Pacific Ocean.

On board was 50 kg of air, 420 liters of water, oxygen tanks, and scientific equipment.

«In accordance with the rules of the ISS supplies of food, fuel, air and water on the ISS are reserved with a reserve in case of emergency situations. Thanks to this ISS crew provided with everything necessary for a normal finding on board the space station before the arrival of the next cargo ship, “- explained in the press service of the department.

The final decision on the algorithm of action for the ISS crew will be made after the commission investigating the incident with the “progress” will determine the causes of the failed launch of the ship.

«The easiest option – do not send these astronauts, take the time to start. But if now it turns out that the Commission understood, delay sending a new crew would not make sense “- said the representative of the Russian Space Agency.

However, he stressed that the time for the evacuation of astronauts in case of force majeure will be many:

«Perhaps some nuances arise, but Not that “ah, ending the air” – and suffocated. This will not be ».

Messages that the crew of the ISS recommends to go to save mode, a spokesman for the Russian Space Agency called stupidity:” Whenever people are living in limited circumstances, they are in power-saving mode. And not necessarily that they are starving, just everything is carefully counted, there are rules of how it should spend. Save breathing, no one will. Save with food and water – also as vain and so no one spends. Refusing to exercise also will not – it is fraught with the fact that people then harder it will be to recover. ”

According to the source “Gazety.Ru”, in the worst case, the crew left the station a few minutes’ supply of food suddenly ends. We have a scenario where in the event of an emergency the crew moved to the lander and, if necessary, within three hours after undocking will already be on Earth. ”

The representative of the Russian Space Agency also did not rule out that reports of lack of oxygen to the ISS and provisions may be representatives of the space industry speculation to extract funding for unscheduled cargo spacecraft launch: “Someone wants to quickly vtyuhat another ship – give money, the astronauts are starving. But it is not ».

The first deputy director of the Central Research Institute of Machine Building for manned programs Sergei Krikalev, who flew six times into space, where he spent a total of 803 days (the world record), said” Newspaper .Ru », that the plan of leaving the station crew work out every day:” In normal flight, the evacuation is fulfilled every day. The crew clearly know how to act in a particular pass. Each of them is given a sequence diagram when the motors braking if something happens. This is a common routine procedure, which is conducted independently of any truck. ”

Krikalev also stressed that saving mode to enter on board the ISS is meaningless because all consumption rates calculated in advance and can not be cut, “just breathe through it does not, people will consume the water in accordance with medical standards. Exercise reducing nobody will, because in this case there will be problems with health. Reserves are formed on the basis of what they should be enough not just to the next truck, and in case he does not come. And all the calculations are made so that the program does not change during emergency situation. Cases that did not get to the ISS two trucks in a row, was not yet “, – said the cosmonaut.

According to him, the flight program will be revised only in the event of the failure of the launch of the American cargo ship in June: “If he falls, then will decide whether or not to continue the flight, when and where to sit, “- said Krikalev.

The procedure of evacuation of the ISS is fulfilled even in the world and is included in the mandatory training program for astronauts. At the same time in terms of the trajectory and the test load freelance descent to Earth is no different from the planned “Astronauts are preparing not one month, and often more than one year. And leaving the station – it’s part of the training program. Even in the case of emergency situation, when the crew isolated in the ship (the descent capsule), it could a few days to understand what happened. You can immediately undock, and you can think about how to save the station or any equipment. There are many options like in a chess game. ”

In this case, the ISS can long exist without the crew and controlled from Earth. “If it is decided to terminate the flight, so the necessary work will be carried out at the station, and the crew will return. But all this will not be a sudden “- said Krikalev.

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