Reentry data acquisition using I Ball Reentry Recorder (I BALL) - 07.29.14
ISS Science for Everyone
Science Objectives for Everyone
The I BALL investigation consists of a spherical sensor assembly that acquires continuous position, acceleration, temperature, and imagery data during the HTV reentry phase. I BALL is launched onboard the HTV3 vehicle and is installed, prior to hatch closure, onto a surface panel of an HTV Resupply Rack (HRR). During and after HTV3 atmospheric reentry, I BALL automatically collects data and sends it to the ground for processing in order to more thoroughly understand the processes and characteristics regarding spacecraft reentry.
Science Results for Everyone
Sponsoring Space Agency
Japan Aerospace Exploration Agency (JAXA)
ISS Expedition Duration
May 2012 - September 2013
Previous ISS Missions
- The I BALL investigation is being developed to get the actual engineering data during reentry operations, which helps engineers to more accurately control the future reentry capability of the HTV.
- I BALL is a data acquisition device that obtains position, acceleration, temperature, imagery data during the HTV reentry phase. This data will be used to conduct analysis of the environment and various HTV characteristics encountered during reentry and allow engineers to more accurately estimate a range of HTV break-up altitudes.
- Continuous reentry data acquisition contributes to an improvement of the reentry analysis, generating more accurate predictions and allowing controllers to specify a smaller splash-down area.
- Smaller splash down areas will contribute advanced Japanese recovery vehicle studies, reduce design constraints, and allow for quick and swift recovery of future spacecraft.
I BALL will contribute to ongoing advanced Japanese recovery vehicle studies, reduce design constraints, and allow for quick and swift recovery of future spacecraft.
By determining the breakup phenomenon of the vehicle, we can specify a smaller splash-down area and can be minimized the notification area on the ground during the reentry.
I BALL overview (Inside its packing material)
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Image of I BALL after installation on HRR
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