benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 tuck Tucker_1892_1977_NGS, 1996-08-04,  JMS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1F00,  ASH700228D,  1068,  NONE, 1.368, 1.4157, 30, 30
 tuck Tucker_1892_1977_NGS, 1996-08-05,  JMS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1F00,  ASH700228D,  1068,  NONE, 1.368, 1.4157, 30, 30
 tuck Tucker_1892_1977_NGS, 1996-08-06,  JMS ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1F00,  ASH700718B,  11404,  NONE, 1.3681, 1.4158, 30, 1430
 tuck Tucker_1892_1977_NGS, 1996-08-07,  JMS ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1F00,  ASH700718B,  11404,  NONE, 1.3681, 1.4158, 30, 30
 tuck Tucker_1892_1977_NGS, 1996-08-08,  JMS ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1F00,  ASH700718B,  11404,  NONE, 1.3681, 1.4158, 30, 30
 tuck Tucker_1892_1977_NGS, 1996-08-09,  JMS ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1F00,  ASH700718B,  11404,  NONE, 1.3681, 1.4158, 30, 30
 tuck Tucker_1892_1977_NGS, 2002-08-15,  JLS ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993702,  NONE, 1.1722, 1.2219, 30, 10
 tuck Tucker_1892_1977_NGS, 2002-08-16,  JLS ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993702,  NONE, 1.1722, 1.2219, 30, 10
 tuck Tucker_1892_1977_NGS, 2002-08-17,  JLS ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993702,  NONE, 1.1722, 1.2219, 30, 10
 tuck Tucker_1892_1977_NGS, 2002-08-18,  JLS ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993702,  NONE, 1.1722, 1.2219, 30, 10
 tuck Tucker_1892_1977_NGS, 2004-08-18,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.3763, 1.4239, 30, 155630
 tuck Tucker_1892_1977_NGS, 2004-08-19,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.3763, 1.4239, 30, 30
 tuck Tucker_1892_1977_NGS, 2004-08-20,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.3763, 1.4239, 30, 30
 tuck Tucker_1892_1977_NGS, 2004-08-21,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.3763, 1.4239, 30, 30