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On Thursday, May 23 from 6:00 PM through midnight ET there will be network maintenance. Some archive services maybe affected for short periods of time.
Acknowledgments
We would like to acknowledge the CASB branch for providing the majority of online information available from MAST. We recommend that users consult the CASB website for the latest information on the Guide Star Catalogs.
Please e-mail questions regarding the Guide Star Catalogs to archive@stsci.edu.
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