benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 bell, 2000-09-16,  WRT ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.3883, 1.4358, 30, 16140
 bell, 2000-09-23,  APS ,   ,  ASHTECH,  174 ,  Z-XII3 CD00,  ASH700936D_M,  CR14330,  NONE, 1.2328, 1.2818, 30, 155330
 bell, 2004-09-25,  WCH ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 1.3682, 1.4159, 30, 152930
 bell, 2004-09-26,  WRT ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14329,  NONE, 1.3602, 1.4079, 30, 1240
 bell BELL_OF_NEV._RLS_886, 2009-09-18,  CHS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.2976, 1.3459, 30, 153630
 bell BELL_OF_NEV._RLS_886, 2009-09-21,  CHS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.3279, 1.3759, 30, 15100
 bell BELL_OF_NEV._RLS_886, 2009-09-22,  SAH ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII 1L001,  ASH701945E_M,  CR520031622,  NONE, 1.3157, 1.3638, 30, 155430