benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 mazz Mazzone_1989_NCER, 1993-02-02,  CHS ,  USGS ,  ASHTECH,  0831 ,  LM-XII3 6M24,  ASH700228A,  1027,  NONE, 1.381, 1.4286, 30, 92230
 mazz Mazzone_1989_NCER, 1994-01-13,  CHS ,  USGS ,  ASHTECH,  764 ,  LM-XII3 7A,  ASH700228A,  0598,  NONE, 1.2946, 1.343, 30, 17340
 mazz Mazzone_1989_NCER, 1994-05-06,  CHS ,  USGS ,  ASHTECH,  99 ,  LM-XII3 7A,  ASH700228D,  1036,  NONE, 1.3629, 1.4106, 30, 13390
 mazz Mazzone_1989_NCER, 1995-08-31,  GDH ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1E00,  ASH700228A,  0598,  NONE, 1.196, 1.2454, 30, 15580
 mazz Mazzone_1989_NCER, 1996-06-13,  CHS ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 1.4135, 1.4608, 30, 1640
 mazz Mazzone_1989_NCER, 1997-09-24,  GDH ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1E95,  ASH700936D_M,  CR14330,  NONE, 1.3227, 1.3708, 30, 1730
 mazz Mazzone_1989_NCER, 1997-09-25,  GDH ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1E95,  ASH700936D_M,  CR14330,  NONE, 1.2712, 1.3198, 30, 16830
 mazz Mazzone_1989_NCER, 1999-03-10,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CB00,  ASH700936E_C,  CR16980,  NONE, 1.2429, 1.2918, 30, 163230
 mazz Mazzone_1989_NCER, 1999-03-11,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CB00,  ASH700936E_C,  CR16980,  NONE, 1.1427, 1.1928, 30, 16210
 mazz Mazzone_1989_NCER, 2001-04-04,  GDH ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993702,  NONE, 1.258, 1.3067, 30, 154730
 mazz Mazzone_1989_NCER, 2001-04-05,  GDH ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993702,  NONE, 1.258, 1.3067, 30, 10
 mazz Mazzone_1989_NCER, 2005-03-15,  GDH ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14329,  NONE, 1.1904, 1.2399, 30, 165930
 mazz Mazzone_1989_NCER, 2005-03-16,  GDH ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14329,  NONE, 1.1924, 1.2419, 30, 17430
 mazz Mazzone_1989_NCER, 2013-01-28,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 0.8264, 0.8819, 15, 213515
 mazz Mazzone_1989_NCER, 2013-01-29,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 0.8264, 0.8819, 15, 0
 mazz Mazzone_1989_NCER, 2013-01-30,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 0.8264, 0.8819, 15, 0
 mazz Mazzone_1989_NCER, 2013-01-31,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 0.8264, 0.8819, 15, 0
 mazz Mazzone_1989_NCER, 2019-03-18,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.6.9,  JAVRINGANT_DM,  00488,  NONE, 0.7823, 0.8389, 15, 16500
 mazz Mazzone_1989_NCER, 2019-03-19,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.6.9,  JAVRINGANT_DM,  00488,  NONE, 0.7823, 0.8389, 15, 0
 mazz Mazzone_1989_NCER, 2019-03-20,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.6.9,  JAVRINGANT_DM,  00488,  NONE, 0.7823, 0.8389, 15, 0
 mazz Mazzone_1989_NCER, 2019-03-21,  ELP ,  USGS ,  JAVAD,  00621 ,  TRE_G3TH SIGMA3.6.9,  JAVRINGANT_DM,  00488,  NONE, 0.7823, 0.8389, 15, 0