benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 dent, 2000-09-17,  WRT ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.4932, 1.5398, 30, 16220
 dent, 2000-09-24,  WRT ,  USGS ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.3762, 1.4238, 30, 15580
 dent, 2004-09-23,  WCH ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 0.4759, 0.5448, 30, 15280
 dent, 2004-09-24,  WCH ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 0.4759, 0.5448, 30, 30
 dent DENT_1958_USCGS, 2009-09-17,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.6823, 0.7418, 30, 0
 dent DENT_1958_USCGS, 2009-09-18,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14329,  NONE, 0.6823, 0.7418, 30, 0