benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 mahh Mahh_95_USGS, 1995-03-24,  JMS ,  USGS ,  ASHTECH,  831 ,  LM-XII3 7A,  ASH700228A,  1027,  NONE, 1.0661, 1.1172, 30, 171430
 mahh Mahh_95_USGS, 1995-03-25,  KWC ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 1E00,  ASH700228D,  1068,  NONE, 1.371, 1.4186, 30, 16130
 mahh Mahh_95_USGS, 1996-02-14,  GDH ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 1.1581, 1.208, 30, 17170
 mahh Mahh_95_USGS, 1996-02-15,  CHS ,  USGS ,  ASHTECH,  143 ,  Z-XII3 1F00,  ASH700718B,  11401,  NONE, 1.3621, 1.4098, 30, 164730
 mahh Mahh_95_USGS, 1997-11-01,  CHS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1E95,  ASH700936D_M,  CR14244,  NONE, 1.3197, 1.3678, 30, 164730
 mahh Mahh_95_USGS, 1997-11-02,  CHS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1E95,  ASH700936D_M,  CR14244,  NONE, 1.3197, 1.3678, 30, 10
 mahh Mahh_95_USGS, 1999-04-23,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 CB00,  ASH700936D_M,  CR14329,  NONE, 1.3479, 1.3958, 30, 15480
 mahh Mahh_95_USGS, 1999-04-24,  JMS ,  USGS ,  ASHTECH,  4600 ,  Z-XII3 CB00,  ASH700936D_M,  CR14329,  NONE, 1.3479, 1.3958, 30, 130
 mahh Mahh_95_USGS, 2002-06-05,  JMS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 0.5089, 0.5759, 30, 10
 mahh Mahh_95_USGS, 2002-06-06,  JMS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 0.5089, 0.5759, 30, 10