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H-II Transfer Vehicle KOUNOTORI (HTV)

Summary of the ISS Cryogenic Experiment Storage Box (ICE Box) demonstration results

Last Updated: March 7, 2014

The ISS Cryogenic Experiment Storage Box (ICE Box) was developed in Japan and carried aboard the HII Transfer Vehicle KOUNOTORI4 (HTV4) on August 4, 2013. This is a cool box made to keep the cargo cool without the electrical power during a flight to the ISS.

The below graph shows that the storage box exceeds the requirement of maintaining the internal temperature within +4℃±2℃ for 10 days. The internal temperature was kept within the requirement for 12 days, and it maintained with only 1℃ increase for 10days. Thus, the ICE Box has demonstrated that it has enough capability of transferring refrigerated cargo aboard HTV.

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*All times are Japan Standard Time (JST. UTC + 9 hours)

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