benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 lizz, 2000-09-14,  CHS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.1174, 1.1678, 30, 15130
 lizz, 2000-09-15,  CHS ,   ,  ASHTECH,  4600 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.1174, 1.1678, 30, 130
 lizz, 2000-09-16,  CHS ,   ,  ASHTECH,  4600 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.1174, 1.1678, 30, 10
 lizz, 2000-09-17,  CHS ,   ,  ASHTECH,  4600 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.1174, 1.1678, 30, 10
 lizz L12_1907_4554_637_US, 2002-10-23,  JMS ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.3945, 1.4419, 30, 162130
 lizz L12_1907_4554_637_US, 2004-09-21,  JMS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE00,  ASH701945E_M,  CR520031615,  NONE, 1.2743, 1.3229, 30, 0
 lizz L12_1907_4554.637_US, 2009-09-17,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE210,  ASH701945E_M,  CR520031615,  NONE, 0.5384, 0.6038, 30, 18645
 lizz L12_1907_4554.637_US, 2009-09-18,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE210,  ASH701945E_M,  CR520031615,  NONE, 0.5384, 0.6038, 30, 0
 lizz L12_1907_4554.637_US, 2009-09-19,  JLS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE210,  ASH701945E_M,  CR520031615,  NONE, 0.5384, 0.6038, 30, 0
 lizz L12_1907_4554.637_US, 2017-06-15,  ELP ,  USGS ,  JAVAD,  01661 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  01599,  NONE, 0.6834, 0.7428, 15, 185815
 lizz L12_1907_4554.637_US, 2017-06-16,  ELP ,  USGS ,  JAVAD,  01661 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  01599,  NONE, 0.6834, 0.7428, 15, 0
 lizz L12_1907_4554.637_US, 2017-06-17,  ELP ,  USGS ,  JAVAD,  01661 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  01599,  NONE, 0.6834, 0.7428, 15, 0
 lizz L12_1907_4554.637_US, 2017-06-18,  ELP ,  USGS ,  JAVAD,  01661 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  01599,  NONE, 0.6834, 0.7428, 15, 0
 lizz L12_1907_4554.637_US, 2020-07-29,  ELP ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  00586,  NONE, 0.6916, 0.7508, 15, 163045
 lizz L12_1907_4554.637_US, 2020-07-30,  ELP ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  00586,  NONE, 0.6916, 0.7508, 15, 0