benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 3178, 2011-02-16,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE210,  ASH701945B_M,  CR619992805,  NONE, 1.4469, 1.4939, 15, 162615
 3178, 2011-02-17,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 1.4136, 1.4609, 15, 163120