benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 riov Riov_USGS_unstamped, 2002-02-26,  JMS ,  USGS ,  ASHTECH Z-XII3,  04597,  CC00,  ASH701945B_M,  CR619992801,  NONE, 0.7504, 0.8078, 30, 163330
 riov Riov_USGS_unstamped, 2002-02-27,  JMS ,  USGS ,  ASHTECH Z-XII3,  04600,  CD00,  ASH700936D_M,  CR14341,  NONE, 0.6958, 0.7549, 30, 17230
 riov Riov_USGS_unstamped, 2004-08-10,  JMS ,  USGS ,  ASHTECH Z-X,  ZE120023204,  ZE00,  ASH701945B_M,  CR519993703,  NONE, 0.5919, 0.6549, 30, 15340
 riov Riov_USGS_unstamped, 2004-08-11,  JMS ,  USGS ,  ASHTECH Z-X,  ZE120023204,  ZE00,  ASH701945B_M,  CR519993703,  NONE, 0.6906, 0.7498, 30, 152630
 riov Riov_USGS_stmpd_CALIF, 2012-01-19,  JMS ,  USGS ,  ASHTECH Z-X,  ZE1200331018,  ZE210A13,  ASH700936D_M,  CR14333,  NONE, 0.8223, 0.8779, 15, 172345
 riov Riov_USGS_stmpd_CALIF, 2012-01-31,  CHS ,  USGS ,  ASHTECH Z-X,  ZE120023208,  ZE210A13,  ASH701945E_M,  CR620022605,  NONE, 0.7864, 0.8429, 15, 161645
 riov Riov_USGS_stmpd_CALIF, 2018-01-17,  ELP ,  USGS ,  JAVAD TRE_G3TH,  00618,  SIGMA3.6.9,  JAVRINGANT_DM,  00585,  NONE, 0.7915, 0.8479, 15, 19445
 riov Riov_USGS_stmpd_CALIF, 2018-05-04,  ELP ,  USGS ,  JAVAD TRE_G3TH,  01337,  SIGMA3.5.14,  JAVRINGANT_DM,  01592,  NONE, 0.7925, 0.8488, 15, 134545