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

COCONet GPS Network - CN11-Pedro_Cay_CR2011 P.S.
Start: 20-Sep-2011
End: 07-May-2019
UNAVCO Community, 2012, COCONet GPS Network - CN11-Pedro_Cay_CR2011 P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5GM85K3