benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 w072, 1998-09-04,  CURTIS L SMITH ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSI,  3640A15928,  Nav,  TRM33429.00+GP,  0220090134,  NONE, 1.5379, 0, 15, 14315
 w072, 1998-09-08,  SCOTT M LOKKEN ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  7882,  Nav,  TRM22020.00+GP,  114383,  NONE, 2, 0, 15, 175045
 w072, 1998-09-09,  DAVID L NOCK ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  7286,  Nav,  TRM22020.00+GP,  115395,  NONE, 2, 0, 15, 135115
 w072 W72_1931_USC&GS, 2003-07-28,  CHS ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 1.3087, 1.3569, 30, 15580
 w072 W72_1931_USC&GS, 2003-07-29,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE00,  ASH700936D_M,  CR14341,  NONE, 1.2551, 1.3039, 30, 155930
 w072 W72_1931_USC&GS, 2008-10-29,  ML ,  USGS/Cascades Volcan,  TRIMBLE,  220214232 ,  4700 NP,  TRM41249.00,  60243776,  NONE, 0.6193, 0.685, 30, 16570
 w072 W72_1931_USC&GS, 2008-10-30,  ML ,  USGS/Cascades Volcan,  TRIMBLE,  220214232 ,  4700 NP,  TRM41249.00,  60243776,  NONE, 0.6193, 0.685, 30, 30
 w072 W72_1931_USC&GS, 2014-09-16,  SAH ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH701945B_M,  CR619992805,  NONE, 0.5332, 0.5989, 15, 153215
 w072 W72_1931_USC&GS, 2014-10-26,  JLS ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14341,  NONE, 0.7607, 0.8179, 15, 155615