The following information obtained from UNAVCO's online DOI system: (https://www.unavco.org/data/doi/search/search.html) MAGNET - HMWD-HMWD P.S. Start: 04-Aug-2005 End: 24-Jul-2007 Blewitt, Geoff, Hammond, William C., Kreemer, Corne, 2009, MAGNET - HMWD-HMWD P.S., UNAVCO, GPS/GNSS Observations Dataset, https://doi.org/10.7283/T5HH6H78