benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ddam DDAM_1_WyomingDeptTr, 2003-09-18,  MAJ ,  USGS ,  ASHTECH,  LP03203 ,  Z-XII3 CD00,  ASH700936E_C,  CR16374,  NONE, 1.3269, 1.3749, 30, 17130
 ddam DDAM_1_WyomingDeptTr, 2007-09-18,  SBM ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L00,  ASH701945B_M,  CR519993706,  NONE, 1.3935, 1.441, 30, 1550
 ddam DDAM_1_WyomingDeptTr, 2007-09-22,  JLS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII 1L00,  ASH701945E_M,  CR520031622,  NONE, 1.158, 1.2079, 30, 15930
 ddam DDAM_1_WyomingDeptTr, 2011-09-15,  SW ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 0.8187, 0.8744, 15, 161445
 ddam DDAM_1_WyomingDeptTr, 2011-09-27,  SAH ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR519993706,  NONE, 1.3248, 1.3729, 15, 145615
 ddam DDAM_1_WyomingDeptTr, 2015-09-16,  SW ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 1.293, 1.3414, 15, 144945
 ddam DDAM_1_WyomingDeptTr, 2015-09-18,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00580,  NONE, 1.247, 1.2959, 15, 124315