benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 bear Bear_Ridge_2_1957_198, 1993-08-20,  MHM ,  USGS ,  ASHTECH LM-XII3,  763,  7A,  ASH700228A,  0718,  NONE, 1.3921, 1.4396, 30, 205630
 bear Bear_Ridge_2_1957_198, 1994-08-23,  GDH ,  USGS ,  ASHTECH LM-XII3,  765,  7A,  ASH700228D,  1058,  NONE, 1.375, 1.4226, 30, 300
 bear Bear_Ridge_2_1957_198, 1994-08-24,  GDH ,  USGS ,  ASHTECH LM-XII3,  765,  7A,  ASH700228D,  1058,  NONE, 1.375, 1.4226, 30, 300
 bear Bear_Ridge_2_1957_198, 1994-09-14,  GDH ,  USGS ,  ASHTECH LM-XII3,  99,  7A,  ASH700228D,  1036,  NONE, 1.3479, 1.3958, 30, 23210
 bear Bear_Ridge_2_1957_198, 1994-09-15,  GDH ,  USGS ,  ASHTECH LM-XII3,  99,  7A,  ASH700228D,  1036,  NONE, 1.3479, 1.3958, 30, 0
 bear Bear_Ridge_2_1957_19, 1992-05-05,  TNP ,  USGS ,  ASHTECH,  765 ,  LM-XII3 6b,  ASH700228D,  1058,  NONE, 1.1739, 1.2236, 30, 19250
 bear Bear_Ridge_2_1957_19, 1992-05-07,  TNP ,  USGS ,  ASHTECH,  765 ,  LM-XII3 6b,  ASH700228D,  1058,  NONE, 1.1739, 1.2236, 30, 430
 bear Bear_Ridge_2_1957_19, 1992-05-08,  NEK ,  USGS ,  ASHTECH,  765 ,  LM-XII3 6b,  ASH700228D,  1058,  NONE, 1.1728, 1.2225, 30, 1260
 bear Bear_Ridge_2_1957_19, 1992-05-09,  NEK ,  USGS ,  ASHTECH,  765 ,  LM-XII3 6b,  ASH700228D,  1058,  NONE, 1.1739, 1.2236, 30, 2360
 bear Bear_Ridge_2_1957_19, 1992-06-11,  WKG ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A24,  ASH700228D,  1058,  NONE, 1.5045, 1.551, 30, 160
 bear Bear_Ridge_2_1957_19, 1992-06-12,  WKG ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A24,  ASH700228D,  1058,  NONE, 1.5055, 1.552, 3, 2303
 bear Bear_Ridge_2_1957_19, 1993-08-18,  MHM ,  USGS ,  ASHTECH,  763 ,  LM-XII3 7A,  ASH700228A,  0718,  NONE, 1.3921, 1.4396, 30, 2280
 bear Bear_Ridge_2_1957_19, 1993-08-19,  MHM ,  USGS ,  ASHTECH,  763 ,  LM-XII3 7A,  ASH700228A,  0718,  NONE, 1.3921, 1.4396, 30, 21240
 bear Bear_Ridge_2_1957_19, 1994-08-22,  GDH ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.375, 1.4226, 30, 201530
 BEAR, 1994-09-16,  CHS ,  USGS ,  ASHTECH,  99 ,  LM-XII3 7A,  ASH700228D,  1036,  NONE, 1.3469, 1.3948, 30, 390
 bear Bear_Ridge_2_1957_19, 2001-07-13,  JMS ,   ,  ASHTECH,  801 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.465, 1.5119, 30, 18560
 bear Bear_Ridge_2_1957_19, 2001-07-14,  JMS ,   ,  ASHTECH,  801 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.465, 1.5119, 30, 30
 bear Bear_Ridge_2_1957_19, 2001-07-15,  JMS ,   ,  ASHTECH,  801 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992805,  NONE, 1.465, 1.5119, 30, 30
 bear Bear_Ridge_2_1957_19, 2004-07-21,  GDH ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CD00,  ASH701945E_M,  CR520031615,  NONE, 1.2299, 1.2789, 30, 30
 bear Bear_Ridge_2_1957_19, 2004-07-22,  GDH ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CD00,  ASH701945E_M,  CR520031615,  NONE, 1.2299, 1.2789, 30, 30
 bear Bear_Ridge_2_1957_19, 2004-07-23,  GDH ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CD00,  ASH701945E_M,  CR520031615,  NONE, 1.2299, 1.2789, 30, 30