benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 2589 020_LAK_25.89_CalTra, 2007-08-19,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH700936D_M,  CR14333,  NONE, 1.458, 1.5049, 30, 16330
 2589 020_LAK_25.89_CalTra, 2007-08-20,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.3672, 1.4149, 30, 15240
 2589 020_LAK_25.89_CalTra, 2009-02-18,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.3067, 1.3549, 30, 16190
 2589 020_LAK_25.89_CalTra, 2009-02-19,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.3046, 1.3529, 30, 16430
 2589 020_LAK_25.89_CalTra, 2011-05-11,  CHS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 1.3188, 1.3669, 15, 15815
 2589 020_LAK_25.89_CalTra, 2011-05-12,  CHS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 1.341, 1.3889, 15, 153045
 2589 020_LAK_25.89_CalTra, 2016-02-03,  ELP ,  USGS ,  JAVAD,  01658 ,  TRE_G3TH SIGMA3.5.9,  JAVRINGANT_DM,  00580,  NONE, 1.1904, 1.2399, 15, 154545
 2589 020_LAK_25.89_CalTra, 2016-02-04,  ELP ,  USGS ,  JAVAD,  01658 ,  TRE_G3TH SIGMA3.5.9,  JAVRINGANT_DM,  00580,  NONE, 1.2369, 1.2859, 15, 15460