benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 k8t2, 2003-09-20,  WRT ,  USGS ,  ASHTECH,  04582 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 1.3894, 1.4369, 30, 16350
 k8t2, 2003-09-21,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14330,  NONE, 1.2986, 1.3469, 30, 161530
 k8t2 K8T2_1969_USC&GS, 2007-09-17,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14341,  NONE, 1.4993, 1.5459, 30, 16130
 k8t2 K8T2_1969_USC&GS, 2007-09-29,  WRT ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.2756, 1.3241, 30, 163530
 k8t2 K8T2_1969_USC&GS, 2015-09-16,  JLS ,  USGS ,  JAVAD,  00618 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 0.8366, 0.8919, 15, 164045
 k8t2 K8T2_1969_USC&GS, 2015-09-17,  JLS ,  USGS ,  JAVAD,  00618 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 0.8366, 0.8919, 15, 0
 k8t2 K8T2_1969_USC&GS, 2015-09-29,  WRT ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR520031615,  NONE, 1.4096, 1.4569, 15, 162515