benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 dga3 DGA_3_73_NCER, 1994-06-01,  GDH ,  USGS ,  ASHTECH,  831 ,  LM-XII3 7A,  ASH700228A,  1027,  NONE, 1.2745, 1.3231, 30, 1580
 dga3 DGA_3_73_NCER, 1995-09-11,  CHS ,  USGS ,  ASHTECH,  830 ,  LM-XII3 7A,  ASH700228A,  0718,  NONE, 1.2996, 1.3479, 30, 16190
 dga3 DGA_3_73_NCER, 1996-10-22,  CHS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1F00,  ASH700228D,  1036,  NONE, 1.3026, 1.3509, 30, 152430
 dga3 DGA_3_73_NCER, 1997-09-09,  CHS ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1E95,  ASH700936D_M,  CR14329,  NONE, 1.3156, 1.3638, 30, 153130
 dga3 DGA_3_73_NCER, 1997-09-10,  CHS ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1E95,  ASH700936D_M,  CR14329,  NONE, 1.3156, 1.3638, 30, 30
 dga3 DGA_3_73_NCER, 1998-11-16,  JMS ,  USGS ,  ASHTECH,  174 ,  Z-XII3 CB00,  ASH700936D_M,  *565,  NONE, 1.4199, 1.4671, 30, 215530
 dga3 DGA_3_73_NCER, 1998-11-17,  JMS ,  USGS ,  ASHTECH,  174 ,  Z-XII3 CB00,  ASH700936D_M,  *565,  NONE, 1.4199, 1.4671, 30, 10
 dga3 DGA_3_73_NCER, 1998-11-18,  JMS ,  USGS ,  ASHTECH,  174 ,  Z-XII3 CB00,  ASH700936D_M,  *565,  NONE, 1.4199, 1.4671, 30, 10
 dga3 DGA_3_73_NCER, 2000-04-15,  JMS ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.3126, 1.3608, 30, 19490
 dga3 DGA_3_73_NCER, 2000-04-16,  JMS ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.3126, 1.3608, 30, 30
 dga3 DGA_3_73_NCER, 2000-04-17,  JMS ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.3126, 1.3608, 30, 30
 dga3 DGA_3_73_NCER, 2000-04-18,  JMS ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.3126, 1.3608, 30, 30
 dga3 DGA_3_73_NCER, 2000-04-25,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14330,  NONE, 1.3621, 1.4098, 30, 192330
 dga3 DGA_3_73_NCER, 2000-04-26,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14330,  NONE, 1.3621, 1.4098, 30, 30
 dga3 DGA_3_73_NCER, 2000-04-27,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14330,  NONE, 1.3621, 1.4098, 30, 30
 dga3 DGA_3_73_NCER, 2001-11-08,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992805,  NONE, 1.351, 1.3988, 30, 10
 dga3 DGA_3_73_NCER, 2001-11-09,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992805,  NONE, 1.351, 1.3988, 30, 10
 dga3 DGA_3_73_NCER, 2012-02-29,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 1.3985, 1.4459, 15, 0
 dga3 DGA_3_73_NCER, 2012-03-01,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 1.3985, 1.4459, 15, 0
 dga3 DGA_3_73_NCER, 2022-08-22,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01600,  NONE, 0.7113, 0.7699, 15, 173415
 dga3 DGA_3_73_NCER, 2022-08-23,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01600,  NONE, 0.7113, 0.7699, 15, 0
 dga3 DGA_3_73_NCER, 2022-08-24,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01600,  NONE, 0.7113, 0.7699, 15, 0
 dga3 DGA_3_73_NCER, 2022-08-25,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01600,  NONE, 0.7113, 0.7699, 15, 0
 dga3 DGA_3_73_NCER, 2022-08-26,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01600,  NONE, 0.7113, 0.7699, 15, 0