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

Pacaya Volcano GPS Network - PVSU-Pocitos_Pacaya P.S.
Start: 13-Oct-2016
End: 07-May-2018
Waite, Gregory, 2016, Pacaya Volcano GPS Network - PVSU-Pocitos_Pacaya P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5BZ64VQ