Russians say ISS threatened by debris from India’s anti-satellite test

According to one Russian official, data from the U.S. Air Force suggests that ISS now faces an increased risk from the debris produced from India’s anti-satellite test in March.

The probability that debris from an Indian satellite shot down earlier may puncture the International Space Station (ISS) has risen by 5%, Executive Director of Russia’s State Space Corporation Roscosmos for Manned Space Programs Sergei Krikalyov said on Wednesday.

“The Americans have carried out calculations on the probability of the station getting punctured because of more debris surfacing and being dispersed. There are numerical estimates raising the probability of a puncture by about 5%,” Krikalyov said at a session of the Russian Academy of Sciences’ Space Council.

It is unclear what this means, since Krikalyov did not say what the estimated overall risk is now thought to be. Increasing a 1% risk by 5% is far less significant that increasing a 10% risk by 5%. In fact, without knowing what the overall risk is, this story is practically meaningless, and instead suggests there are political reasons for making this statement.