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

HoustonNet GPS Network - LCI1-LCI1 P.S.
Start: 01-Jan-2015
End: 22-Nov-2021
Wang, Guoquan, 2015, HoustonNet GPS Network - LCI1-LCI1 P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5416VCZ