benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 saww Saw_rm1_1992_USGS, 1998-07-21,  GDH ,  USGS ,  ASHTECH,  278 ,  Z-XII3 1F50,  ASH700936E_C,  CR16365,  NONE, 1.2914, 1.3398, 30, 1840
 saww Saw_rm1_1992_USGS, 1998-07-22,  GDH ,  USGS ,  ASHTECH,  278 ,  Z-XII3 1F50,  ASH700936E_C,  CR16365,  NONE, 1.2914, 1.3398, 30, 30
 saww Saw_rm1_1992_USGS, 1999-07-20,  JMS ,   ,  ASHTECH,  LP03362 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 1.352, 1.3998, 30, 154830
 saww Saw_rm1_1992_USGS, 1999-07-21,  JMS ,   ,  ASHTECH,  LP03362 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 1.352, 1.3998, 30, 30
 saww Saw_rm1_1992_USGS, 2002-07-09,  JMS ,  USGS ,  ASHTECH,  LP03203 ,  Z-XII3 CD00,  ASH700936E_C,  CR16374,  NONE, 1.3965, 1.4439, 30, 15400
 saww Saw_rm1_1992_USGS, 2002-07-10,  JMS ,  USGS ,  ASHTECH,  LP03203 ,  Z-XII3 CD00,  ASH700936E_C,  CR16374,  NONE, 1.3965, 1.4439, 30, 10
 saww Saw_rm1_1992_USGS, 2002-07-11,  JMS ,  USGS ,  ASHTECH,  LP03203 ,  Z-XII3 CD00,  ASH700936E_C,  CR16374,  NONE, 1.3965, 1.4439, 30, 10
 saww Saw_rm1_1992_USGS, 2002-07-12,  JMS ,  USGS ,  ASHTECH,  LP03203 ,  Z-XII3 CD00,  ASH700936E_C,  CR16374,  NONE, 1.3965, 1.4439, 30, 10