benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 lope Lope_1989_GPS_ORDOT, 1998-09-09,  JOSEPH D DIMARE ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  11526,  Nav,  TRM22020.00+GP,  30426,  NONE, 2, 0, 15, 134930
 lope Lope_1989_GPS_ORDOT, 1998-09-10,  JOSEPH D DIMARE ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  11526,  Nav,  TRM22020.00+GP,  30426,  NONE, 2, 0, 15, 174030
 lope Lope_1989_GPS_ORDOT, 1998-09-11,  JOSEPH D DIMARE ,  NATIONAL GEODETIC SU,  TRIMBLE 4000SSE,  11526,  Nav,  TRM22020.00+GP,  30426,  NONE, 2, 0, 15, 134230
 lope Lope_1989_GPS_ORDOT, 1992-09-03,  JMS ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A24,  ASH700228D,  1058,  NONE, 1.3558, 1.4036, 30, 195330
 lope Lope_1989_GPS_ORDOT, 2003-07-18,  JLS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZC00,  ASH701945E_M,  CR620022605,  NONE, 0.5268, 0.5928, 30, 162430
 lope Lope_1989_GPS_ORDOT, 2003-07-19,  JLS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZC00,  ASH701945E_M,  CR620022605,  NONE, 0.5268, 0.5928, 30, 0
 lope Lope_1989_GPS_ORDOT, 2015-03-17,  Daniel Dzurisin ,  USGS/Cascades Volcan,  JAVAD,  00344 ,  TRE_G3TH SIGMA3.6.0,  TRM57971.00,  1441000320,  NONE, 0.5468, 0.615, 15, 185715
 lope Lope_1989_GPS_ORDOT, 2015-03-18,  Daniel Dzurisin ,  USGS/Cascades Volcan,  JAVAD,  00344 ,  TRE_G3TH SIGMA3.6.0,  TRM57971.00,  1441000320,  NONE, 0.5468, 0.615, 15, 0
 lope Lope_1989_GPS_ORDOT, 2015-03-19,  Daniel Dzurisin ,  USGS/Cascades Volcan,  JAVAD,  00344 ,  TRE_G3TH SIGMA3.6.0,  TRM57971.00,  1441000320,  NONE, 0.5468, 0.615, 15, 0