Japan’s desire to withdraw any error analysis Hayabusa asteroid papers

Japan Aerospace Exploration Agency (JAXA) has announced that it is asking the magazine “Science” withdraw papers published an article in 2006, because the data analysis errors.

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Hayabusa bypass Itokawa art map Source: JAXA

Japan Aerospace Exploration Agency (JAXA) has announced that it is asking the magazine “Science” withdraw papers published an article in 2006, because the data analysis errors. The paper is Hayabusa asteroid sample return mission concluded. However, this paper does not affect the withdrawal of the asteroid scientists understand because other papers also confirmed the main conclusions of the study.

June 2, 2006, Japan led the research team in the journal “Science” published seven papers, the conclusion is based on data collected during Hayabusa spacecraft orbiting in the asteroid Itokawa in autumn 2005. Subsequently, Hayabusa landed on the asteroid to collect samples. The paper has been withdrawn by Tatsuaki Okada and colleagues write, is to determine the X-ray analysis of the content of the asteroid surface elements. The researchers concluded that: “Itokawa is consistent with a composition of chondrites.” Is a rock chondrite meteorites.

Due to various reasons, the research team believes they will not be able to rely on the instrument calibration before launch spacecraft in Earth’s. To compensate, they began to assume that will see the X-ray spectrum of magnesium and silicon, these elements are known to exist in the general chondrite meteorites. They then use these elements for the raw spectral data interpretation. In fact, the researchers hasty decision of this judgment, and then analyze the things they want to observe.

JAXA space and the solar system, Director, Institute of Space and Astronautical Science Masaki Fujimoto said that the hypothesis “of scientists is a huge mistake, but as human beings, we sometimes make mistakes.” Fujimoto was not involved in writing the paper, said the paper error analysis makes conclusions invalid. Ironically, he said, to return to the dust of the earth’s analysis showed that Itokawa is actually an ordinary chondrites, the relevant conclusions on August 26, 2011, published in the journal “Science.”

When a routine Hayabusa project conclusions of the review, it was found that this error. But the researchers concluded that academic misconduct is not present here. Currently, the research team began to return to the original data, in order to discover whether there are new analytical conclusions. Hayabusa was launched in May 2003, has published 129 peer-reviewed papers, including 14 published in the journal “Science.”

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