benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ch33 Chatsworth_RE62_No1_, 1994-02-02,  WKG ,  USGS ,  ASHTECH,  104 ,  LM-XII3 7A,  ASH700228D,  1068,  NONE, 0.8034, 0.8595, 30, 5330
 ch33 Chatsworth_RE62_No1_, 1994-02-16,  WKG ,  USGS ,  ASHTECH,  104 ,  LM-XII3 7A,  ASH700228D,  1068,  NONE, 1.2051, 1.2544, 30, 234430
 ch33 Chatsworth_RE62_No1_, 1994-03-15,  CHS ,  USGS ,  ASHTECH,  762 ,  LM-XII3 7A,  ASH700228A,  0745,  NONE, 1.193, 1.2424, 30, 3130
 ch33 Chatsworth_RE62_No1_, 1994-05-18,  WKG ,  USGS ,  ASHTECH,  104 ,  LM-XII3 7A,  ASH700228D,  1068,  NONE, 1.2, 1.2494, 30, 23540
 chat, 1994-11-05,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1E001,  ASH700228A,  0745,  NONE, 1.1859, 1.2354, 30, 50
 ch33 Chatsworth_RE62_No1_, 1995-02-01,  KWC ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1E00,  ASH700228D,  1068,  NONE, 1.2443, 1.2932, 30, 1600
 ch33 Chatsworth_RE62_No1_, 1995-12-02,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1F00,  ASH700228D,  1036,  NONE, 1.192, 1.2415, 30, 16350
 ch33 Chatsworth_RE62_No1_, 1996-12-09,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1E95,  ASH700228D,  1036,  NONE, 1.2544, 1.3032, 30, 16340
 ch33 Chatsworth_RE62_No1_, 1996-12-10,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1E95,  ASH700228D,  1036,  NONE, 1.2544, 1.3032, 30, 30
 ch33 Chatsworth_RE62_No1_, 1998-03-13,  CHS ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E95,  ASH700936D_M,  CR14244,  NONE, 1.2489, 1.2977, 30, 16550
 ch33 Chatsworth_RE62_No1_, 1998-03-14,  CHS ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E95,  ASH700936D_M,  CR14244,  NONE, 1.2489, 1.2977, 30, 30
 ch33 Chatsworth_RE62_No1_, 1998-03-31,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1E95,  ASH700936D_M,  CR14330,  NONE, 1.1791, 1.2287, 30, 4630
 ch33 Chatsworth_RE62_No1_, 1998-04-01,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1E95,  ASH700936D_M,  CR14330,  NONE, 1.1791, 1.2287, 30, 30
 ch33 Chatsworth_RE62_No1_, 1999-05-18,  JMC ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 CB00,  ASH700936D_M,  CR14329,  NONE, 0.5603, 0.6246, 30, 1510
 ch33 Chatsworth_RE62_No1_, 1999-05-19,  JMC ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 CB00,  ASH700936D_M,  CR14329,  NONE, 0.5603, 0.6246, 30, 10
 ch33 Chatsworth_RE62_No1_, 2001-04-18,  GDH ,   ,  ASHTECH,  lp019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993702,  NONE, 1.1467, 1.1967, 30, 234430
 ch33 Chatsworth_RE62_No1_, 2001-04-19,  GDH ,   ,  ASHTECH,  lp019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993702,  NONE, 1.1467, 1.1967, 30, 10