benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 v511 V_511_GGB_LS_3834_LA, 1994-11-21,  JMS ,  USGS ,  ASHTECH,  99 ,  LM-XII3 7A,  ASH700228D,  1036,  NONE, 1.2191, 1.2683, 30, 14590
 v511 V_511_GGB_LS_3834_LA, 1996-02-07,  CHS ,  USGS ,  ASHTECH,  143 ,  Z-XII3 1F00,  ASH700718B,  11401,  NONE, 1.3217, 1.3698, 30, 164830
 v511 V_511_GGB_LS_3834_LA, 1996-02-20,  GDH ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1F00,  ASH700228A,  0598,  NONE, 1.2614, 1.3101, 30, 165730
 v511 V_511_GGB_LS_3834_LA, 1997-10-21,  GDH ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1E95,  ASH700936D_M,  CR14333,  NONE, 1.2146, 1.2638, 30, 162530
 v511 V_511_GGB_LS_3834_LA, 1997-10-22,  GDH ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 1E95,  ASH700936D_M,  CR14333,  NONE, 1.2479, 1.2968, 30, 15500
 v511 V_511_GGB_LS_3834_LA, 1999-04-13,  CHS ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E95,  ASH700936E_C,  CR16975,  NONE, 1.3096, 1.3578, 30, 14520
 v511 V_511_GGB_LS_3834_LA, 1999-04-14,  GDH ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E95,  ASH700936E_C,  CR16975,  NONE, 1.164, 1.2138, 30, 15470
 v511 V_511_GGB_LS_3834_LA, 2003-06-03,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.2511, 1.2999, 30, 153930
 v511 V_511_GGB_LS_3834_LA, 2003-06-04,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.2511, 1.2999, 30, 10
 v511 V_511_GGB_LS_3834_LA, 2003-06-05,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022601,  NONE, 1.2511, 1.2999, 30, 10
 v511 V_511_GGB_LS_3834_LA, 2014-03-12,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 1.3692, 1.4168, 15, 0
 v511 V_511_GGB_LS_3834_LA, 2014-03-13,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 1.3692, 1.4168, 15, 0
 v511 V_511_GGB_LS_3834_LA, 2014-03-14,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 1.3692, 1.4168, 15, 0
 v511 V_511_GGB_LS_3834_LA, 2019-07-08,  ELP ,  USGS ,  JAVAD,  00588 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  00586,  NONE, 0.6346, 0.6958, 15, 135130