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

COCONet GPS Network - UNPM-Puerto_Morelos_MX_2007 P.S.
Start: 07-Aug-2007
End: 14-Nov-2022
UNAVCO Community, 2012, COCONet GPS Network - UNPM-Puerto_Morelos_MX_2007 P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/J1GD-5S40