benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 bgpt, 2000-09-20,  CHS ,   ,  ASHTECH,  4600 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 1.61, 1.6558, 30, 15390
 bgpt Bridgeport_1956_USC&, 2005-10-04,  JLS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.2804, 1.3289, 30, 15930
 bgpt Bridgeport_1956_USC&, 2005-10-05,  JLS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.2875, 1.336, 30, 13480
 bgpt Bridgeport_1956_USC&, 2009-09-09,  GDH ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 1.461, 1.5079, 30, 1690
 bgpt Bridgeport_1956_USC&, 2009-09-11,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE210,  ASH701945E_M,  CR520031615,  NONE, 0.8397, 0.8949, 30, 151030