The following information obtained from UNAVCO's online DOI system: (https://www.unavco.org/data/doi/search/search.html) MAGNET - TIRE-TIRE P.S. Start: 06-Jul-2006 End: 04-May-2018 Blewitt, Geoff, Hammond, William C., Kreemer, Corne, 2009, MAGNET - TIRE-TIRE P.S., UNAVCO, GPS/GNSS Observations Dataset, https://doi.org/10.7283/T5KD1W3Q