benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 gord Gorda_1991_USGS, 1993-08-21,  JLS ,  USGS ,  ASHTECH LM-XII3,  764,  7A,  ASH700228A,  0598,  NONE, 1.1175, 1.1679, 30, 203030
 gord Gorda_1991_USGS, 2005-06-25,  JLS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 0.4032, 0.4773, 30, 173330
 gord Gorda_1991_USGS, 2005-06-26,  JLS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 0.4032, 0.4773, 30, 0
 gord Gorda_1991_USGS, 2005-06-27,  JLS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 0.4032, 0.4773, 30, 0
 gord Gorda_1991_USGS, 2005-06-28,  JLS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 0.4032, 0.4773, 30, 0
 gord Gorda_1991_USGS, 2005-06-29,  JLS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 0.4032, 0.4773, 30, 0