benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 FLRN, 1995-09-17,  unknown ,  unknown ,  TRIMBLE 4000SE,  3451,  6.12,  TRM14532.00,  68498,  NONE, 1.3165, 0, 30, 164030
 FLRN, 1995-09-24,  unknown ,  unknown ,  TRIMBLE 4000ST,  339,  4.81,  TRM14532.00,  130,  NONE, 1.0713, 0, 30, 20
 flrn, 1996-07-12,  JMS ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1F00,  ASH700718B,  11404,  NONE, 1.2702, 1.3188, 30, 16270
 flrn, 1996-07-13,  JMS ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1F00,  ASH700718B,  11404,  NONE, 1.2702, 1.3188, 30, 30
 flrn Flat_1956_USGS_(Reno, 2000-08-22,  JMS ,   ,  ASHTECH,  lp019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 0.4542, 0.5245, 30, 162830
 flrn Flat_1956_USGS_(Reno, 2000-08-23,  JMS ,   ,  ASHTECH,  lp019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 0.4542, 0.5245, 30, 10
 flrn Flat_1956_USGS_(Reno, 2000-08-24,  JMS ,   ,  ASHTECH,  lp019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 0.4542, 0.5245, 30, 10
 flrn Flat_1956_USGS_(Reno, 2004-05-18,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945B_M,  CR619992805,  NONE, 1.1691, 1.2188, 30, 0
 flrn Flat_1956_USGS_(Reno, 2004-05-19,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945B_M,  CR619992805,  NONE, 1.1691, 1.2188, 30, 0
 flrn Flat_1956_USGS_(Reno, 2004-05-20,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945B_M,  CR619992805,  NONE, 1.1691, 1.2188, 30, 0