benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 hp14, 1994-04-26,  Steve Holdorff ,  National Geodetic Su,  TRIMBLE 4000,  1502,  SSE,  TRM14532.00,  18,  NONE, 2.22, 0, 15, 162830
 hp14 HPGN_01-04_1991_Cal_, 1994-09-18,  KWC ,  USGS ,  ASHTECH,  99 ,  LM-XII3 7A,  ASH700228D,  1036,  NONE, 1.4714, 1.5182, 30, 16430
 hp14 HPGN_01-04_1991_Cal_, 2001-07-10,  GDH ,   ,  ASHTECH,  O4582 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 1.1569, 1.2068, 30, 16240
 hp14 HPGN_01-04_1991_Cal_, 2001-07-11,  CHS ,   ,  ASHTECH,  lp019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993702,  NONE, 1.4942, 1.5408, 30, 153530
 hp14 HPGN_01-04_1991_Cal_, 2004-07-14,  CHS ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945E_M,  CR520031626,  NONE, 1.3692, 1.4168, 30, 153630
 hp14 HPGN_01-04_1991_Cal_, 2004-07-15,  JLS ,  USGS ,  ASHTECH,  ZE120033802 ,  Z-X ZE00,  ASH700936D_M,  CR14329,  NONE, 1.3248, 1.3729, 30, 15540
 hp14 HPGN_01-04_1991_CalT, 2013-04-22,  JLS ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14330,  NONE, 0.8376, 0.8929, 15, 152045
 hp14 HPGN_01-04_1991_CalT, 2013-06-09,  JLS ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022601,  NONE, 1.3269, 1.3749, 15, 142845