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

Afar GPS Network - DA25-Asadamum (Badai) P.S.
Start: 08-Jan-2006
End: 17-Nov-2008
Calais, Eric, 2007, Afar GPS Network - DA25-Asadamum (Badai) P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5222RTR