benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 walt, 1999-09-10,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14330,  NONE, 1.4579, 1.5048, 30, 153130
 walt, 1999-09-21,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14330,  NONE, 1.4276, 1.4747, 30, 15320
 walt Walt_1994_PRI-NET, 2003-10-30,  CHS ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993702,  NONE, 1.3642, 1.4119, 30, 161530
 walt Walt_1994_PRI-NET, 2003-10-31,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945B_M,  CR619992801,  NONE, 1.2238, 1.2729, 30, 162830
 walt Walt_1994_PRI-NET, 2008-10-10,  ML ,  USGS/Cascades Volcan,  TRIMBLE,  0220264600 ,  5700 NP,  TRM41249.00,  60142391,  NONE, 1.4546, 1.5085, 15, 3030