benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 lake Lake_Mary_1989_NCER, 1993-07-16,  JMS ,  USGS ,  ASHTECH LM-XII3,  831,  7A26,  ASH700228A,  1027,  NONE, 1.1184, 1.1688, 30, 232930
 lake Lake_Mary_1989_NCER, 2000-07-08,  TSB ,  USC ,  ASHTECH Z-XII3,  312,  CC00,  ASH700936E_C,  CR16404,  NONE, 1.0437, 1.0951, 30, 15110
 lake Lake_Mary_1989_NCER, 2000-07-11,  FCC ,  USC ,  ASHTECH Z-XII3,  192,  CD00,  ASH700936E_C,  CR16381,  NONE, 0.5439, 0.609, 30, 1560
 lake Lake_Mary_1989_NCER, 2001-08-01,  SEO ,  USC ,  ASHTECH Z-XII3,  317,  CC00,  ASH700936E_C,  CR16404,  NONE, 0.8266, 0.8821, 30, 3230
 lake Lake_Mary_1989_NCER, 2001-08-02,  SEO ,  USC ,  ASHTECH Z-XII3,  317,  CC00,  ASH700936E_C,  CR16404,  NONE, 0.8266, 0.8821, 30, 100
 lake Lake_Mary_1989_NCER, 1992-08-12,  GDH ,  USGS ,  ASHTECH,  764 ,  LM-XII3 7A,  ASH700228A,  0598,  NONE, 1.1356, 1.1858, 30, 185030
 lake Lake_Mary_1989_NCER, 1994-08-01,  JMS ,  USGS ,  ASHTECH,  762 ,  LM-XII3 7A,  ASH700228A,  0745,  NONE, 0.8793, 0.9337, 30, 15130
 lake Lake_Mary_1989_NCER, 1996-07-19,  JMS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1F00,  ASH700228A,  0598,  NONE, 1.1134, 1.1639, 30, 15340
 lake Lake_Mary_1989_NCER, 1996-07-20,  KAS ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1F00,  ASH700718B,  11404,  NONE, 1.155, 1.2049, 30, 152030
 lake Lake_Mary_1989_NCER, 1998-07-23,  SJ. ,  USGS ,  ASHTECH,  203 ,  Z-XII3 1F50,  ASH700936E_C,  CR16364,  NONE, 1.0687, 1.1198, 30, 15290
 lake Lake_Mary_1989_NCER, 1998-07-24,  SJK ,  USGS ,  ASHTECH,  278 ,  Z-XII3 1F50,  ASH700936D_M,  CR14244,  NONE, 1.1417, 1.1918, 30, 152130
 lake Lake_Mary_1989_NCER, 1999-07-20,  RBG ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.0819, 1.1328, 30, 151930
 lake Lake_Mary_1989_NCER, 1999-07-21,  RBG ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.1082, 1.1587, 30, 145830
 lake Lake_Mary_1989_NCER, 2002-07-09,  AWL ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 1.1448, 1.1949, 30, 15290
 lake Lake_Mary_1989_NCER, 2002-07-10,  CWA ,  USGS ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.155, 1.2049, 30, 155930
 lake Lake_Mary_1989_NCER, 2005-07-20,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 1.161, 1.2109, 30, 155030
 lake Lake_Mary_1989_NCER, 2005-07-21,  GDH ,  USGS ,  ASHTECH,  579 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.156, 1.2059, 30, 15520
 lake Lake_Mary_1989_NCER, 2007-07-14,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 0.9703, 1.0229, 30, 155330
 lake Lake_Mary_1989_NCER, 2007-07-19,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 0.7339, 0.7918, 30, 14930