benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 sull, 2010-02-09,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.1985, 1.2479, 15, 163845
 sull, 2010-02-11,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.2116, 1.2609, 15, 161015
 sull, 2010-11-17,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 1.161, 1.2109, 15, 171015
 sull, 2010-11-18,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 1.2137, 1.2629, 15, 17215
 sull SULL_2005_USGS, 2012-07-16,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 1.2228, 1.2719, 15, 16615
 sull SULL_2005_USGS, 2012-07-17,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 1.2127, 1.2619, 15, 144515
 sull SULL_2005_USGS, 2013-04-03,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 1.1783, 1.2279, 15, 155315
 sull SULL_2005_USGS, 2013-04-04,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 1.2127, 1.2619, 15, 155045
 sull SULL_2005_USGS, 2018-08-14,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.6.9,  JAVRINGANT_DM,  01599,  NONE, 1.2177, 1.2669, 15, 13160
 sull SULL_2005_USGS, 2018-08-15,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.6.9,  JAVRINGANT_DM,  01599,  NONE, 1.158, 1.2079, 15, 131545