benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 iaq2 Iaqua_2_1961_USC&GS, 1993-08-19,  KWC ,  USGS ,  ASHTECH LM-XII3,  0831,  7A,  ASH700228A,  1027,  NONE, 1.3408, 1.3887, 30, 20330
 iaq2 Iaqua_2_1961_USC&GS, 1992-05-08,  GDH ,  USGS ,  ASHTECH,  1104 ,  LM-XII3 6A,  ASH700228D,  1068,  NONE, 1.3117, 1.3599, 30, 12930
 iaq2 Iaqua_2_1961_USC&GS, 1992-05-09,  CHS ,  USGS ,  ASHTECH,  107 ,  LM-XII3 6A,  ASH700228D,  *031,  NONE, 1.2795, 1.328, 30, 1390
 iaq2 Iaqua_2_1961_USC&GS, 1994-08-23,  KWC ,  USGS ,  ASHTECH,  283 ,  Z-XII3 1C01,  ASH700228A,  134,  NONE, 1.3288, 1.3768, 30, 1900
 iaq2 Iaqua_2_1961_USC&GS, 1994-09-15,  KWC ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.2644, 1.3131, 30, 154930
 iaq2 Iaqua_2_1961_USC&GS, 2001-07-15,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14244,  NONE, 1.1508, 1.2008, 30, 18360
 iaq2 Iaqua_2_1961_USC&GS, 2001-07-16,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14244,  NONE, 1.1508, 1.2008, 30, 10
 iaq2 Iaqua_2_1961_USC&GS, 2001-07-17,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14244,  NONE, 1.1508, 1.2008, 30, 10
 iaq2 Iaqua_2_1961_USC&GS, 2004-07-27,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945E_M,  CR620022605,  NONE, 1.1367, 1.1868, 30, 0
 iaq2 Iaqua_2_1961_USC&GS, 2004-07-28,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945E_M,  CR620022605,  NONE, 1.1367, 1.1868, 30, 0
 iaq2 Iaqua_2_1961_USC&GS, 2004-07-29,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945E_M,  CR620022605,  NONE, 1.1367, 1.1868, 30, 0