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

Nepal GPS Network - TSM1-Tsum Valley P.S.
Start: 11-Jun-2015
End: 22-Apr-2016
Avouac, Jean-Philippe, Adhikari, Lok Bijay, Knappe, Ellen, Galetzka, John E., Fend, Michael, Gupta, Ratna Mani, 2015, Nepal GPS Network - TSM1-Tsum Valley P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5TM78F8