benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 j123, 2001-06-05,  GDH ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945.02B,  CR619992801,  NONE, 1.1953, 1.2447, 30, 15580
 j123, 2001-06-06,  JMS ,   ,  ASHTECH,  LP00108.707 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993706,  NONE, 1.2742, 1.3228, 30, 16130
 j123 J1233_1972_USC&GS, 2003-05-13,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE00,  ASH701945E_M,  CR620022605,  NONE, 1.1843, 1.2338, 30, 153815
 j123 J1233_1972_USC&GS, 2014-01-14,  JLS ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.3.1,  ASH701945B_M,  CR519993703,  NONE, 1.2066, 1.2559, 15, 145945
 j123 J1233_1972_USC&GS, 2014-01-23,  JLS ,  USGS ,  JAVAD,  00622 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 0.7884, 0.8448, 15, 134915
 j123 J1233_1972_USC&GS, 2014-01-24,  JLS ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 0.7699, 0.8268, 15, 141115