benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 r46r R46_reset_1961_USC&G, 1994-07-07,  JMS ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.3931, 1.4405, 30, 163330
 r46r R46_reset_1961_USC&G, 2000-08-15,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 1.4942, 1.5408, 30, 181630
 r46r R46_reset_1961_USC&G, 2000-08-18,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 0.6021, 0.6646, 30, 173130
 r46r R46_reset_1961_USC&G, 2004-05-12,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE00,  ASH701945E_M,  CR520031615,  NONE, 1.3349, 1.3829, 30, 154830
 r46r R46_reset_1961_USC&G, 2004-05-13,  GDH ,  USGS ,  ASHTECH,  ZE120033802 ,  Z-X ZE00,  ASH701945B_M,  CR519993706,  NONE, 1.2642, 1.3129, 30, 153830