benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 pers PERSHING, 1994-07-06,  BWP ,   ,  ASHTECH L-XII,  211,  6P,  ASH700228D,  733,  NONE, 1.408, 1.4553, 30, 163430
 pers PERSHING, 1994-07-08,  000 ,   ,  ASHTECH L-XII,  211,  6P,  ASH700228D,  733,  NONE, 1.166, 1.2158, 30, 161930
 pers PERSHING, 2000-09-18,  WRT ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.4115, 1.4588, 30, 16730
 pers PERSHING, 2000-09-25,  WRT ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.2318, 1.2808, 30, 16130
 pers PERSHING, 2004-09-24,  WCH ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 1.343, 1.3909, 30, 153830
 pers PERSHING, 2004-09-26,  WRT ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14329,  NONE, 1.3218, 1.3699, 30, 16150
 pers PERSHING_1935_USCGS, 2009-09-24,  SAH ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII 1L001,  ASH701945E_M,  CR520031622,  NONE, 1.4005, 1.4479, 30, 162430
 pers PERSHING_1935_USCGS, 2009-11-16,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR520031615,  NONE, 1.2086, 1.2579, 30, 165645