benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 stsp Salt_Spring_1952_USC, 1994-03-24,  JMS ,  USGS ,  ASHTECH,  762 ,  LM-XII3 7A,  ASH700228A,  0745,  NONE, 1.2, 1.2494, 30, 171930
 stsp Salt_Spring_1952_USC, 2002-04-03,  JMS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.3036, 1.3519, 30, 16590
 stsp Salt_Spring_1952_USC, 2002-04-04,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14329,  NONE, 1.2015, 1.2509, 30, 15320
 stsp Salt_Spring_1952_USC, 2006-04-23,  CHS ,  USGS ,  ASHTECH,  579 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.2571, 1.3059, 30, 15390
 stsp Salt_Spring_1952_USC, 2006-04-26,  CHS ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993706,  NONE, 1.2561, 1.3049, 30, 15320
 stsp Salt_Spring_1952_USC, 2011-07-12,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L001,  ASH701945E_M,  CR520031622,  NONE, 1.2774, 1.3259, 15, 15215
 stsp Salt_Spring_1952_USC, 2014-03-25,  JLS ,  USGS ,  JAVAD,  00619 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022601,  NONE, 1.2278, 1.2769, 15, 142215