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

Kona GPS Network - CHRS-Seahorse Farm P.S.
Start: 27-Oct-2006
End: 02-Dec-2016
Brooks, Benjamin, Foster, James, 2009, Kona GPS Network - CHRS-Seahorse Farm P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/DMP8-M892