benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 chir Chirikov_GPS_1989, 1995-06-03,  STIFFLER ,  USGS ,  ROGUE,  unkn ,  SNR-8000 95.03,  AOAD/M_T,  unkn,  NONE, 0.7041, 0, 30, 0
 chir Chirikov_GPS_1989, 1997-06-21,  CHS ,  USGS ,  ASHTECH,  *LP02434 ,  Z-XII3 1E95,  ASH700936D_M,  *412,  NONE, 1.1407, 1.1908, 30, 30
 chir Chirikov_GPS_1989, 1997-06-22,  CHS ,  USGS ,  ASHTECH,  *LP02434 ,  Z-XII3 1E95,  ASH700936D_M,  *412,  NONE, 1.1407, 1.1908, 30, 30
 chir Chirikov_GPS_1989, 1997-06-23,  CHS ,  USGS ,  ASHTECH,  *LP02434 ,  Z-XII3 1E95,  ASH700936D_M,  *412,  NONE, 1.1407, 1.1908, 30, 30
 chir Chirikov_GPS_1989, 2000-06-26,  CHS ,  USGS ,  ASHTECH,  lp019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993705,  NONE, 1.1305, 1.1807, 15, 45
 chir Chirikov_GPS_1989, 2000-06-27,  CHS ,  USGS ,  ASHTECH,  lp019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993705,  NONE, 1.1305, 1.1807, 15, 45
 chir Chirikov_GPS_1989, 2000-06-28,  CHS ,  USGS ,  ASHTECH,  lp019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993705,  NONE, 1.1305, 1.1807, 15, 45
 chir Chirikov_GPS_1989, 2000-06-29,  CHS ,  USGS ,  ASHTECH,  lp019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993705,  NONE, 1.1305, 1.1807, 15, 45