benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 gldh, 1994-08-10,  MHM ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.2493, 1.2981, 30, 183230
 gldh Gold_Hill_1954_USC&G, 1994-08-11,  MHM ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.2493, 1.2981, 30, 235959.992
 gldh, 1994-08-12,  MHM ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.2493, 1.2981, 30, 235959.98
 gldh Gold_Hill_1954_USC&G, 1994-08-13,  MHM ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.2493, 1.2981, 30, 235959.968
 gldh Gold_Hill_1954_USC&G, 1994-08-14,  MHM ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.2493, 1.2981, 30, 0
 gldh Gold_Hill_1954_USC&G, 1994-08-15,  MHM ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.2493, 1.2981, 30, 0
 gldh Gold_Hill_1954_USC&G, 1994-08-16,  MHM ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.2483, 1.2971, 30, 16480
 gldh Gold_Hill_1954_USC&G, 2001-08-14,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14244,  NONE, 1.2772, 1.3257, 30, 233630
 gldh Gold_Hill_1954_USC&G, 2001-08-15,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14244,  NONE, 1.2772, 1.3257, 30, 10
 gldh Gold_Hill_1954_USC&G, 2001-08-16,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14244,  NONE, 1.2772, 1.3257, 30, 10