benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 k204 K_204_1934_USC&GS, 1993-07-14,  JMS ,  USGS ,  ASHTECH LM-XII3,  107,  7A26,  ASH700228D,  *031,  NONE, 1.1366, 1.1868, 30, 23400
 k204 K_204_1934_USC&GS, 1992-08-13,  JMS ,  USGS ,  ASHTECH,  1104 ,  LM-XII3 7A,  ASH700228D,  1068,  NONE, 1.3569, 1.4047, 30, 18320
 k204 K_204_1934_USC&GS, 1994-07-30,  JMS ,  USGS ,  ASHTECH,  762 ,  LM-XII3 7A,  ASH700228A,  0745,  NONE, 0.946, 0.999, 30, 144130
 k204 K_204_1934_USC&GS, 1996-07-21,  JMS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1F00,  ASH700228A,  0598,  NONE, 1.1034, 1.154, 30, 15540
 k204 K_204_1934_USC&GS, 1996-07-22,  CHS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1F00,  ASH700228D,  1036,  NONE, 1.1437, 1.1938, 30, 15350
 k204 K_204_1934_USC&GS, 1998-07-26,  SJK ,  USGS ,  ASHTECH,  203 ,  Z-XII3 1F50,  ASH700936E_C,  CR16364,  NONE, 1.0839, 1.1348, 30, 15420
 k204 K_204_1934_USC&GS, 1998-07-27,  EEZ ,  USGS ,  ASHTECH,  174 ,  Z-XII3 1F50,  ASH700936E_C,  CR16374,  NONE, 1.1599, 1.2097, 30, 164130
 k204 K_204_1934_USC&GS, 1999-07-26,  SKM ,   ,  ASHTECH,  188 ,  Z-XII3 CB00,  ASH700936E_C,  CR16376,  NONE, 0.9823, 1.0347, 30, 16210
 k204 K_204_1934_USC&GS, 1999-07-27,  BDK ,   ,  ASHTECH,  174 ,  Z-XII3 CB00,  ASH701945B_M,  CR619992802,  NONE, 1.168, 1.2178, 30, 15350
 k204 K_204_1934_USC&GS, 2002-07-16,  SGP ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 1.1033, 1.1539, 30, 174030
 k204 K_204_1934_USC&GS, 2002-07-17,  AWL ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 1.1286, 1.1788, 30, 154430
 k204 K_204_1934_USC&GS, 2005-07-21,  CHS ,  USGS ,  ASHTECH,  04582 ,  Z-XII3 CD00,  ASH701945E_M,  CR520031615,  NONE, 1.1813, 1.2309, 30, 1580
 k204 K_204_1934_USC&GS, 2005-07-25,  JLS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 0.5067, 0.5738, 30, 155630
 k204 K_204_1934_USC&GS, 2007-07-10,  CHS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945E_M,  CR520031615,  NONE, 1.2218, 1.2709, 30, 15530
 k204 K_204_1934_USC&GS, 2007-07-23,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH701945E_M,  CR620022601,  NONE, 1.1448, 1.1949, 30, 161030
 k204 K_204_1934_USC&GS, 2009-07-15,  JMS ,  USGS ,  ASHTECH,  579 ,  Z-XII 1L001,  ASH700936D_M,  CR14330,  NONE, 1.1924, 1.2419, 30, 15340
 k204 K_204_1934_USC&GS, 2009-07-16,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.1924, 1.2419, 30, 154330
 k204 K_204_1934_USC&GS, 2011-08-12,  JMS ,  USGS ,  ASHTECH,  04579 ,  Z-XII 1L001,  ASH701945B_M,  CR619992805,  NONE, 1.2349, 1.2839, 15, 152045
 k204 K_204_1934_USC&GS, 2013-07-12,  JLS ,  USGS ,  JAVAD,  00619 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022602,  NONE, 1.1104, 1.1609, 15, 151115
 k204 K_204_1934_USC&GS, 2013-07-14,  JLS ,  USGS ,  JAVAD,  00622 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 1.247, 1.2959, 15, 16045
 k204 K_204_1934_USC&GS, 2013-07-15,  JLS ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.3.1,  ASH701945B_M,  CR519993703,  NONE, 1.1631, 1.2129, 15, 14245
 k204 K_204_1934_USC&GS, 2015-10-20,  SKW ,  USGS ,  JAVAD,  00597 ,  TRE_G3TH SIGMA3.6.2,  TRM41249.00,  60142391,  NONE, 0.5395, 0.608, 15, 175815
 k204 K_204_1934_USC&GS, 2015-10-21,  SKW ,  USGS ,  JAVAD,  00597 ,  TRE_G3TH SIGMA3.6.2,  TRM41249.00,  60142391,  NONE, 0.7855, 0.847, 15, 174815