benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 orrw ORRW_USGS, 2008-12-04,  CHS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 1.3824, 1.43, 30, 16400
 orrw ORRW_USGS, 2008-12-09,  CHS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 1.3107, 1.3589, 30, 16320
 orrw ORRW_USGS, 2010-11-02,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.9214, 0.9749, 15, 165115
 orrw ORRW_USGS, 2010-11-03,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.955, 1.0079, 15, 163515
 orrw ORRW_USGS, 2012-03-11,  JLS ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00488,  NONE, 0.9091, 0.9629, 15, 151245
 orrw ORRW_USGS, 2012-03-20,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 0.8724, 0.9269, 15, 153815
 orrw ORRW_USGS, 2016-10-25,  JLS ,  USGS ,  JAVAD,  01663 ,  TRE_G3TH SIGMA3.5.9,  ASH701945B_M,  CR619992805,  NONE, 0.8581, 0.9129, 15, 155730
 orrw ORRW_USGS, 2016-10-26,  JLS ,  USGS ,  JAVAD,  01663 ,  TRE_G3TH SIGMA3.5.9,  ASH701945B_M,  CR619992805,  NONE, 0.8581, 0.9129, 15, 0