benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 koaw, 1994-06-22,  Freymueller J. ,  Stanford University ,  TRIMBLE 4000SSE,  3414A05701,  NP,  TRM14532.00,  3012A00106,  NONE, 0.7669, 0, 30, 42430
 koaw, 1994-06-23,  Corona Wendy ,  Stanford University ,  TRIMBLE 4000SSE,  3414A05701,  NP,  TRM14532.00,  3012A00106,  NONE, 0.8971, 0, 30, 3380
 koaw KOA_1991, 2008-11-19,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 1.0932, 1.1439, 30, 0
 koaw KOA_1991, 2008-11-20,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 1.0932, 1.1439, 30, 0
 koaw KOA_1991, 2008-11-21,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 1.0932, 1.1439, 30, 0