benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 7adl 7ADL_1967_USGS, 2003-09-16,  MRF ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.1104, 1.1609, 30, 16280
 7adl 7ADL_1967_USGS, 2003-09-17,  SHY ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.1307, 1.1809, 30, 16930
 7adl 7ADL_1967_USGS, 2007-09-15,  SBM ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII 1L00,  ASH701945B_M,  CR519993706,  NONE, 1.1367, 1.1868, 30, 16440
 7adl 7ADL_1967_USGS, 2007-09-23,  MBA ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 1L00,  ASH701945E_M,  CR620022605,  NONE, 1.3571, 1.4049, 30, 15290
 7adl 7ADL_1967_USGS, 2011-09-18,  SW ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 1.2632, 1.3119, 15, 21215
 7adl 7ADL_1967_USGS, 2011-09-25,  SAH ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR519993706,  NONE, 1.247, 1.2959, 15, 144015
 7adl 7ADL_1967_USGS, 2015-09-13,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA-Unkn,  JAVRINGANT_DM,  00580,  NONE, 0.6699, 0.7298, 15, 1720
 7adl 7ADL_1967_USGS, 2015-09-14,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00580,  NONE, 0.6699, 0.7298, 15, 0
 7adl 7ADL_1967_USGS, 2015-09-15,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00580,  NONE, 0.6699, 0.7298, 15, 0
 7adl 7ADL_1967_USGS, 2015-09-16,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00580,  NONE, 0.6699, 0.7298, 15, 0