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

Southeast Alaska GPS Network - TATC-TATS Continuous P.S.
Start: 19-Sep-2007
End: 14-Jul-2021
Freymueller, Jeffrey T., 2008, Southeast Alaska GPS Network - TATC-TATS Continuous P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/2XTN-4T38