benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 heli, 2000-09-12,  CWW ,   ,  ASHTECH,  203 ,  Z-XII3 CD00,  ASH700936E_C,  CR16364,  NONE, 1.4226, 1.4698, 30, 152630
 heli, 2000-09-24,  CHS ,   ,  ASHTECH,  lp019992803 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.3227, 1.3708, 30, 154430
 heli, 2004-09-14,  JRM ,  USGS ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022605,  NONE, 1.0688, 1.1199, 30, 152930
 heli HELI_USGS, 2004-09-18,  FFP ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH700936D_M,  CR14330,  NONE, 1.1428, 1.1929, 30, 155130
 heli HELI_USGS, 2009-09-09,  FFP ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L001,  ASH701945B_M,  CR519993703,  NONE, 1.1084, 1.1589, 30, 163630
 heli HELI_USGS, 2009-09-20,  WRT ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 1.2774, 1.3259, 30, 164030