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

Pacaya Volcano GPS Network - PVOE-El Rodeo Pacaya Guatemala P.S.
Start: 18-Oct-2016
End: 22-Apr-2017
Waite, Gregory, 2017, Pacaya Volcano GPS Network - PVOE-El Rodeo Pacaya Guatemala P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5765D55