Status of SCUBA-2

SCUBA-2 was recently returned to service after a 5-week-long absence due to a partial cryogen blockage. It has been returned to full service, despite requiring alternative operating conditions because of a problem diagnosed with one of the Pulse Tube Coolers. This issue has left the instrument filters at temperatures that are fractionally warmer than normal. SCUBA-2 operation will be maintained until October 5, when it will be removed from the telescope to replace the PTCs and also install new optical filters which we expect to improve the instrument performance. SCUBA-2 return to service is expected on or before November 24.

We apologize for the inconvenience and will keep you updated as to our progress.

– 2016/08/03

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