The following information obtained from UNAVCO's online DOI system:
(https://www.unavco.org/data/doi/search/search.html)

Alaska Volcano Observatory GPS Network - DUTC-Dutch Harbor AVO P.S.
Start: 13-Aug-2013
End: 14-Nov-2022
Freymueller, Jeffrey T., 2013, Alaska Volcano Observatory GPS Network - DUTC-Dutch Harbor AVO P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T51G0JPJ