benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 pipr, 1994-06-18,  UNKNOWN ,  Stanford University ,  TRIMBLE 4000SSE,  3414A05687,  NP,  TRM14532.00,  3015A00140,  NONE, 1.0795, 0, 30, 164330
 pipr, 1994-06-19,  Siegel Lori ,  Stanford University ,  TRIMBLE 4000SSE,  3414A05687,  NP,  TRM14532.00,  3015A00140,  NONE, 1.1814, 0, 30, 155630
 pipr, 2013-03-13,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.8846, 0.9388, 15, 0
 pipr, 2013-03-14,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.8846, 0.9388, 15, 0