benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 w67r W_67_Rm1_1981_1988_US, 1998-09-04,  VINCENT C PICZAK ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  4883,  Nav,  TRM22020.00+GP,  76723,  NONE, 2, 0, 15, 141030
 w67r W_67_Rm1_1981_1988_US, 1998-09-08,  VINCENT C PICZAK ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  4883,  Nav,  TRM22020.00+GP,  76723,  NONE, 2, 0, 15, 17510
 w67r W_67_Rm1_1981_1988_US, 1998-09-09,  VINCENT C PICZAK ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  4883,  Nav,  TRM22020.00+GP,  76723,  NONE, 2, 0, 15, 13530
 w67r W_67_Rm1_1981_1988_U, 1992-09-03,  CHS ,  USGS ,  ASHTECH,  764 ,  LM-XII3 7A24,  ASH700228A,  0598,  NONE, 1.4774, 1.5242, 30, 184030
 w67r, 1999-09-15,  CWW ,   ,  ASHTECH,  174 ,  Z-XII3 CD00,  ASH700936E_C,  CR16376,  NONE, 1.5778, 1.6238, 30, 155330
 w67r, 1999-09-28,  GWB ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992801,  NONE, 1.3752, 1.4228, 30, 1660
 w67r W_67_Rm1_1931_1988_U, 2003-06-20,  WCH ,  USGS ,  ASHTECH,  LP02232 ,  Z-XII3 6J00,  ASH701945E_M,  CR620022605,  NONE, 1.3672, 1.4149, 30, 162340
 w67r W_67_Rm1_1931_1988_U, 2003-06-21,  WCH ,  USGS ,  ASHTECH,  LP02232 ,  Z-XII3 6J00,  ASH701945E_M,  CR620022605,  NONE, 1.4449, 1.4919, 30, 18580
 w67r W_67_Rm1_1931_1988_U, 2013-09-13,  JLS ,  USGS ,  JAVAD,  00619 ,  TRE_G3TH SIGMA3.3.1,  ASH701945B_M,  CR519993703,  NONE, 1.2713, 1.3199, 15, 161015
 w67r W_67_Rm1_1931_1988_U, 2013-09-23,  WRT ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 1.4308, 1.4779, 15, 15615