The following information obtained from UNAVCO's online DOI system: (https://www.unavco.org/data/doi/search/search.html) MAGNET - THOM-THOM P.S. Start: 14-May-2005 End: 15-Oct-2020 Blewitt, Geoff, Hammond, William C., Kreemer, Corne, 2009, MAGNET - THOM-THOM P.S., UNAVCO, GPS/GNSS Observations Dataset, https://doi.org/10.7283/T5TX3CKW