benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 neln Neln_EHZ, 2002-03-06,  GDH ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 1.1732, 1.2229, 30, 10
 neln Neln_EHZ, 2002-03-07,  GDH ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 1.1732, 1.2229, 30, 10
 neln Neln_EHZ, 2006-04-20,  GDH ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.5311, 0.5969, 30, 0
 neln Neln_EHZ, 2006-04-21,  GDH ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.5311, 0.5969, 30, 0
 neln Neln_EHZ, 2006-04-22,  GDH ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.5311, 0.5969, 30, 0
 neln Neln_EHZ, 2011-07-07,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.7545, 0.8119, 15, 164715
 neln Neln_EHZ, 2011-07-08,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.7545, 0.8119, 15, 0
 neln Neln_EHZ, 2011-07-09,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.7545, 0.8119, 15, 0
 neln Neln_EHZ, 2011-07-10,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.7545, 0.8119, 15, 0