benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 sjua, 2010-01-25,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.2025, 1.2519, 15, 162715
 sjua, 2010-01-26,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.2379, 1.2868, 15, 163415
 sjua, 2010-10-20,  JMS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH701945B_M,  CR619992801,  NONE, 1.2966, 1.3449, 15, 155745
 sjua, 2010-10-21,  JMS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH701945B_M,  CR619992801,  NONE, 1.3571, 1.4049, 15, 154745
 sjua SJUA_2006_USGS, 2012-07-14,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 1.3682, 1.4159, 15, 153815
 sjua SJUA_2006_USGS, 2013-04-03,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH701945E_M,  CR520031622,  NONE, 1.338, 1.386, 15, 164845
 sjua SJUA_2006_USGS, 2013-04-04,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR520031622,  NONE, 1.2966, 1.3449, 15, 145845
 sjua SJUA_2006_USGS, 2016-03-24,  ELP ,  USGS ,  JAVAD,  01658 ,  TRE_G3TH SIGMA3.5.9,  JAVRINGANT_DM,  00580,  NONE, 0.7267, 0.7848, 15, 14240
 sjua SJUA_2006_USGS, 2016-03-28,  ELP ,  USGS ,  JAVAD,  01660 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  00580,  NONE, 1.2905, 1.3389, 15, 142945