benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 pts5 PTS_50_Reset_1990, 1993-08-09,  EYI ,  USGS ,  ASHTECH L-XII,  004,  7A,  ASH700228A,  004,  NONE, 1.4541, 1.501, 15, 21745
 pts5 PTS_50_Reset_1990, 1993-08-12,  EYI ,  USGS-CVO ,  ASHTECH LM-XII3,  004,  7A,  ASH700228A,  004,  NONE, 1.4842, 1.5309, 15, 21145
 pts5 PTS_50_Reset_1990, 1993-08-26,  JWK ,  USGS-CVO ,  ASHTECH L-XII,  763,  7A26,  ASH700228D,  718,  NONE, 1.4657, 1.5126, 15, 20250
 pts5 PTS_50_Reset_1990, 1993-08-27,  KKM ,  USGS-CVO ,  ASHTECH L-XII,  763,  7A26,  ASH700228D,  718,  NONE, 1.3829, 1.4304, 15, 21345
 pts5 PTS_50_Reset_1990, 2003-08-22,  CHS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14330,  NONE, 1.5054, 1.5519, 30, 151930
 pts5 PTS_50_Reset_1990, 2003-08-27,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE00,  ASH701945B_M,  CR519993702,  NONE, 1.3581, 1.4059, 30, 1610