benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 n067, 1999-09-18,  GDH ,   ,  ASHTECH,  4600 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.1356, 1.1858, 30, 1610
 n067, 1999-09-22,  GDH ,   ,  ASHTECH,  4600 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.1508, 1.2008, 30, 16130
 n067 N067_N67_1934_USC&GS, 2008-09-19,  JMS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII 1L00,  ASH701945E_M,  CR520031626,  NONE, 1.2177, 1.2669, 30, 15530
 n067 N067_N67_1934_USC&GS, 2008-09-20,  JMS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 0.5605, 0.6248, 30, 16270
 n067 N067_N67_1934_USC&GS, 2013-09-14,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 0.5458, 0.6109, 15, 173815
 n067 N067_N67_1934_USC&GS, 2013-09-15,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 0.5458, 0.6109, 15, 0
 n067 N067_N67_1934_USC&GS, 2013-09-16,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 0.5458, 0.6109, 15, 0