benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 hp11 HPGN_CALIF.STA._01-0, 2007-08-16,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII 1L00,  ASH701945E_M,  CR620022602,  NONE, 1.2905, 1.3389, 30, 30
 hp11 HPGN_CALIF.STA._01-0, 2007-08-17,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII 1L00,  ASH701945E_M,  CR620022602,  NONE, 1.2905, 1.3389, 30, 30
 hp11 HPGN_CALIF.STA._01-0, 2007-08-18,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII 1L00,  ASH701945E_M,  CR620022602,  NONE, 1.2905, 1.3389, 30, 30
 hp11 HPGN_CALIF.STA._01-0, 2009-02-20,  CHS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 0.6596, 0.7199, 30, 0
 hp11 HPGN_CALIF.STA._01-0, 2009-04-15,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 1.2875, 1.336, 30, 0
 hp11 HPGN_CALIF.STA._01-0, 2009-04-16,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 1.2875, 1.336, 30, 0
 hp11 HPGN_CALIF.STA._01-0, 2009-04-17,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 1.2875, 1.336, 30, 0
 hp11 HPGN_CALIF.STA._01-0, 2011-05-10,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.901, 0.9549, 15, 174245
 hp11 HPGN_CALIF.STA._01-0, 2011-05-11,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.901, 0.9549, 15, 0
 hp11 HPGN_CALIF.STA._01-0, 2011-05-12,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 0.901, 0.9549, 15, 0
 hp11 HPGN_CALIF.STA._01-0, 2016-02-03,  ELP ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00488,  NONE, 0.8816, 0.9359, 15, 0
 hp11 HPGN_CALIF.STA._01-0, 2016-02-04,  ELP ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00488,  NONE, 0.8816, 0.9359, 15, 0
 hp11 HPGN_CALIF.STA._01-0, 2016-02-05,  ELP ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00488,  NONE, 0.8816, 0.9359, 15, 0
 hp11 HPGN_CALIF.STA._01-0, 2016-02-06,  ELP ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00488,  NONE, 0.8816, 0.9359, 15, 0