benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 jk02 JK02_USGS, 2002-03-07,  CHS ,  USGS ,  ASHTECH,  04582 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 0.6045, 0.6669, 30, 18140
 jk02 JK02_USGS, 2002-03-08,  CHS ,  USGS ,  ASHTECH,  04582 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 0.6045, 0.6669, 30, 10
 jk02 JK02_USGS, 2006-04-20,  GDH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.5448, 0.6099, 30, 0
 jk02 JK02_USGS, 2006-04-21,  GDH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.5448, 0.6099, 30, 0
 jk02 JK02_USGS, 2006-04-22,  GDH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.5448, 0.6099, 30, 0
 jk02 JK02_USGS, 2011-07-10,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.7802, 0.8368, 15, 18145
 jk02 JK02_USGS, 2011-07-11,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.7802, 0.8368, 15, 0
 jk02 JK02_USGS, 2011-07-12,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.7802, 0.8368, 15, 0
 jk02 JK02_USGS, 2011-07-13,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.7802, 0.8368, 15, 0
 jk02 JK02_USGS, 2011-07-14,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.7802, 0.8368, 15, 0