benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 deet, 1999-09-15,  GWB ,  USGS ,  ASHTECH,  278 ,  Z-XII3 CD00,  ASH700936E_C,  CR16379,  NONE, 0.5371, 0.6025, 30, 15160
 deet, 1999-09-16,  GWB ,  USGS ,  ASHTECH,  278 ,  Z-XII3 CD00,  ASH700936E_C,  CR16379,  NONE, 0.5371, 0.6025, 30, 30
 deet, 1999-09-19,  GWB ,  USGS ,  ASHTECH,  278 ,  Z-XII3 CD00,  ASH700936E_C,  CR16379,  NONE, 0.5445, 0.6096, 30, 14430
 deet, 1999-09-20,  GWB ,  USGS ,  ASHTECH,  278 ,  Z-XII3 CD00,  ASH700936E_C,  CR16379,  NONE, 0.5445, 0.6096, 30, 30
 deet Deet_stmpd_E-55+00.0, 2003-06-23,  MCN ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.3238, 1.3719, 30, 16830
 deet Deet_stmpd_E-55+00.0, 2008-02-27,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 0.901, 0.9549, 30, 0
 deet Deet_stmpd_E-55+00.0, 2008-02-28,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 0.901, 0.9549, 30, 0
 deet Deet_stmpd_E-55+00.0, 2008-02-29,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR520031622,  NONE, 0.901, 0.9549, 30, 0
 deet Deet_stmpd_E-55+00.0, 2008-09-05,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945E_M,  CR620022602,  NONE, 1.4136, 1.4609, 30, 15120
 deet Deet_stmpd_E-55+00.0, 2008-09-08,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.4076, 1.4549, 30, 15100