benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 m137 M_1377_1984_CGS, 1994-11-19,  KWC ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1E00,  ASH700228A,  0598,  NONE, 1.1507, 1.2007, 30, 23420
 m137 M_1377_1984_CGS, 1996-02-09,  JMS ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 1.434, 1.4811, 30, 16420
 m137 M_1377_1984_CGS, 1996-02-18,  JMS ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1F00,  ASH700718B,  11404,  NONE, 1.4487, 1.4957, 30, 16480
 m137 M_1377_1984_CGS, 1997-10-26,  GDH ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1E95,  ASH700936D_M,  CR14329,  NONE, 1.4276, 1.4747, 30, 17030
 m137 M_1377_1984_CGS, 1997-10-27,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1E95,  ASH700936D_M,  CR14341,  NONE, 1.5456, 1.5918, 30, 165230
 m137 M_1377_1984_CGS, 1999-04-17,  GDH ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 CB00,  ASH700936D_M,  CR14244,  NONE, 1.3701, 1.4178, 30, 15280
 m137 M_1377_1984_CGS, 1999-04-18,  JLS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 CB00,  ASH700936E_C,  CR16116,  NONE, 1.2368, 1.2858, 30, 155630
 m137 M_1377_1984_CGS, 2003-06-06,  CHS ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 1.2299, 1.2789, 30, 152930
 m137 M_1377_1984_CGS, 2003-06-07,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE00,  ASH701945B_M,  CR519993703,  NONE, 1.5134, 1.5599, 30, 154230
 m137 M_1377_1984_CGS, 2014-03-17,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022602,  NONE, 0.855, 0.9099, 15, 144515
 m137 M_1377_1984_CGS, 2014-03-18,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022602,  NONE, 0.855, 0.9099, 15, 0
 m137 M_1377_1984_CGS, 2021-10-22,  ELP ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.7.6,  ASH701945E_M,  CR520031615,  NONE, 0.8438, 0.8989, 15, 151215
 m137 M_1377_1984_CGS, 2021-10-23,  ELP ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.7.6,  ASH701945E_M,  CR520031615,  NONE, 0.8223, 0.8779, 15, 1570