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ISS Crew Instructed to Resolve Air Leak Issue Before Mission Change in Mid-October

© Photo : NASA/RoscosmosThe International Space Station photographed from a Soyuz spacecraft
The International Space Station photographed from a Soyuz spacecraft - Sputnik International
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MOSCOW (Sputnik) - The current expedition on the International Space Station (ISS) has been tasked with fixing the air leak in the Russian Zvezda module before the arrival of the next crew later in mid-October, according to instructions sent from the Moscow Mission Control Centre.

"The rate of leakage ... is of the order of 0.9 millimetres [on the barometer column per day] from the atmosphere altogether. And in this regard, guys, we cannot shift this problem, or at least, it is very undesirable ... to shift it to the next crew,” a specialist in Moscow told cosmonauts Anatoly Ivanishin and Ivan Vagner, as heard in a NASA live feed of ground-to-ISS communications.

The specialist subsequently tasked the crew to focus on resolving the issue as much as possible.

"We have no one else to rely on but you, that you will help and [dedicate] all the free time you have on solving this problem," he said.

Several tests where the crew isolated themselves in parts of the station helped zero in on the area of the leak late last month. Late last week, the flight director on the Russian side, Vladimir Soloviev said that the leak was “crazy small” which makes resolving the issue that much more challenging.

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The upcoming Expedition 63 is set to launch from Baikonur on October 14 and reach the ISS in a record speed of three hours and five minutes aboard the Soyuz 2.1a launch vehicle. They will replace Commander Astronaut Christopher Cassidy and Cosmonauts Anatoli Ivanshin and Ivan Vagner.

A small air leak was detected in September 2019 and by August 2020, the leakage rate had increased five-fold - from 270 grams to 1.4 kilograms per 24 hours - although it does not pose a risk to the crew.

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