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Real Time Streaming Audio and Spectrograph are currently down due to connectivity issues.

The ACO website will be down on 25 Nov 2017 from 07:00 to 13:00 HST and 13 Jan 2018 from 07:00 to 17:00 HST for scheduled maintenance.

New ACO instruments were installed during the ACO-3 cruise on 2014/11/01. Click here for ACO-3 videos.

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