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

COCONet Partner GPS Network - RDSD-Santo_DoDRCR2004 P.S.
Start: 15-Jun-2012
End: 14-Nov-2022
Holsteinson, Alexander T., Pena, Jose, 2012, COCONet Partner GPS Network - RDSD-Santo_DoDRCR2004 P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5CZ3594