benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 whir, 2000-07-05,  CLE ,  USC ,  ASHTECH Z-XII3,  175,  CD00,  ASH700936E_C,  379,  NONE, 0.9939, 1.0461, 30, 17410
 whir, 2000-07-06,  CLE ,  USC ,  ASHTECH Z-XII3,  175,  CD00,  ASH700936E_C,  379,  NONE, 0.9939, 1.0461, 30, 30
 whir, 2000-07-07,  CLE ,  USC ,  ASHTECH Z-XII3,  175,  CD00,  ASH700936E_C,  379,  NONE, 0.9939, 1.0461, 30, 30
 whir, 2000-07-08,  CLE ,  USC ,  ASHTECH Z-XII3,  175,  CD00,  ASH700936E_C,  379,  NONE, 0.9939, 1.0461, 30, 30
 whir, 2010-07-15,  JMS ,  USGS ,  TRIMBLE,  0220320135 ,  5700 NP,  TRM41249.00,  12560557,  NONE, 0.4988, 0.5691, 15, 30
 whir, 2010-07-16,  JMS ,  USGS ,  TRIMBLE,  0220320135 ,  5700 NP,  TRM41249.00,  12560557,  NONE, 0.4988, 0.5691, 15, 30
 whir, 2012-07-08,  CalVO ,  USGS ,  JAVAD,  00618 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14329,  NONE, 1.2947, 1.3431, 15, 0
 whir, 2012-07-09,  CalVO ,  USGS ,  JAVAD,  00618 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14329,  NONE, 1.2947, 1.3431, 15, 0