benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 obse Observation_LBL_1968, 1994-08-01,  WKG ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.4383, 1.4854, 30, 145530
 obse Observation_LBL_1968, 1996-07-22,  GDH ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 1.357, 1.4048, 30, 161130
 obse Observation_LBL_1968, 1996-07-23,  GDH ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 1.2945, 1.3429, 30, 154730
 obse Observation_LBL_1968, 1998-07-29,  JLS ,  USGS ,  ASHTECH,  174 ,  Z-XII3 1F50,  ASH700936E_C,  CR16374,  NONE, 1.1437, 1.1938, 30, 164430
 obse Observation_LBL_1968, 1998-07-30,  JLS ,  USGS ,  ASHTECH,  174 ,  Z-XII3 1F50,  ASH700936E_C,  CR16374,  NONE, 1.1609, 1.2107, 30, 16130
 obse Observation_LBL_1968, 1999-07-29,  GDH ,   ,  ASHTECH,  O4597 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992805,  NONE, 1.2267, 1.2758, 30, 154730
 obse Observation_LBL_1968, 1999-07-30,  CHS ,   ,  ASHTECH,  O4591 ,  Z-XII3 CC00,  ASH700936D_M,  CR14244,  NONE, 1.3954, 1.4428, 30, 15360
 obse Observation_LBL_1968, 2002-07-18,  JLS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14329,  NONE, 1.158, 1.2079, 30, 1610
 obse Observation_LBL_1968, 2002-07-19,  JLS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993702,  NONE, 1.1621, 1.2119, 30, 16730
 obse Observation_LBL_1968, 2005-07-28,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945B_M,  CR519993703,  NONE, 1.1535, 1.2034, 30, 16230
 obse Observation_LBL_1968, 2005-07-29,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945B_M,  CR519993703,  NONE, 1.1712, 1.2209, 30, 15480
 obse Observation_LBL_1968, 2007-07-21,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 1.1509, 1.2009, 30, 153730
 obse Observation_LBL_1968, 2007-07-22,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 1.1772, 1.2269, 30, 142330
 obse Observation_LBL_1968, 2010-07-23,  JMS ,  USGS ,  TRIMBLE,  0220320141 ,  5700 NP,  TRM41249.00,  12578430,  NONE, 1.2628, 1.3181, 15, 220
 obse Observation_LBL_1968, 2010-07-24,  JMS ,  USGS ,  TRIMBLE,  0220320141 ,  5700 NP,  TRM41249.00,  12578430,  NONE, 1.2628, 1.3181, 15, 30