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

Alaska GPS Network - ATW2-Alaska Tsunami Warning Centr 2 P.S.
Start: 30-Sep-2000
End: 14-Nov-2022
UNAVCO Community, 2000, Alaska GPS Network - ATW2-Alaska Tsunami Warning Centr 2 P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/7CQA-XE18