benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 swin Sherwin_831, 1998-07-23,  GDH ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1F50,  ASH700936E_C,  CR16379,  NONE, 1.1093, 1.1598, 30, 152530
 swin Sherwin_831, 1998-07-24,  RCB ,  USGS ,  ASHTECH,  192 ,  Z-XII3 1F50,  ASH700936D_M,  CR14333,  NONE, 1.1832, 1.2328, 30, 16110
 swin Sherwin_831, 1999-07-20,  JMS ,   ,  ASHTECH,  175 ,  Z-XII3 CB00,  ASH700936E_C,  CR16365,  NONE, 1.1564, 1.2063, 30, 1510
 swin Sherwin_831, 1999-07-21,  ASH ,   ,  ASHTECH,  LP03464 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992801,  NONE, 1.2166, 1.2658, 30, 1580
 swin Sherwin_831, 2005-07-19,  CHS ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.1762, 1.2259, 30, 154430
 swin Sherwin_831, 2005-07-20,  JMS ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 1.1337, 1.1839, 30, 15300