benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 d916 D916_1957_USC&GS, 2006-07-07,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945E_M,  CR620022602,  NONE, 0.3453, 0.4248, 30, 15370
 d916 D916_1957_USC&GS, 2006-07-08,  CHS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945B_M,  CR519993702,  NONE, 1.1894, 1.2389, 30, 154830
 d916 D916_1957_USC&GS, 2018-08-15,  EMB ,  USGS ,  JAVAD,  01662 ,  TRE_G3TH SIGMA3.5.1,  TRM41249.00,  60142391,  NONE, 0.6492, 0.714, 15, 2100
 d916 D916_1957_USC&GS, 2018-08-16,  EMB ,  USGS ,  JAVAD,  01662 ,  TRE_G3TH SIGMA3.5.1,  TRM41249.00,  60142391,  NONE, 0.6492, 0.714, 15, 0