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

COCONet GPS Network - CN36-MonteriaCOCR2012 P.S.
Start: 19-Aug-2012
End: 28-Sep-2020
UNAVCO Community, 2012, COCONet GPS Network - CN36-MonteriaCOCR2012 P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T52B8W88