benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 glnc GLO_1981_NCER, 2006-10-19,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.2723, 1.3209, 30, 15390
 glnc GLO_1981_NCER, 2006-10-21,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.2379, 1.2868, 30, 152830
 glnc GLO_1981_NCER, 2012-05-13,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 1.1833, 1.2329, 15, 141415
 glnc GLO_1981_NCER, 2012-05-14,  JLS ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 1.1722, 1.2219, 15, 133045
 glnc GLO_1981_NCER, 2013-08-24,  JLS ,  USGS ,  JAVAD,  00618 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022605,  NONE, 1.155, 1.2049, 15, 133445
 glnc GLO_1981_NCER, 2013-10-25,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.3329, 1.3809, 15, 16515
 glnc GLO_1981_NCER, 2020-01-24,  ELP ,  USGS ,  JAVAD,  01663 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01599,  NONE, 1.2491, 1.2979, 15, 152245
 glnc GLO_1981_NCER, 2020-01-25,  ELP ,  USGS ,  JAVAD,  01663 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01599,  NONE, 1.2501, 1.2989, 15, 153615