benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 hors Horse_Mtn_1932_USGS, 1992-05-07,  CHS ,  USGS ,  ASHTECH,  107 ,  LM-XII3 6A,  ASH700228D,  *031,  NONE, 1.196, 1.2454, 30, 1260
 hors Horse_Mtn_1932_USGS, 1994-08-23,  GDH ,  USGS ,  ASHTECH,  762 ,  LM-XII3 7A,  ASH700228A,  0745,  NONE, 1.4011, 1.4485, 30, 1880
 hors Horse_Mtn_1932_USGS, 1994-09-15,  GDH ,  USGS ,  ASHTECH,  831 ,  LM-XII3 7A,  ASH700228A,  1027,  NONE, 1.2614, 1.3101, 30, 15280
 hors Horse_Mtn_1932_USGS, 2001-07-17,  GDH ,   ,  ASHTECH,  O4597 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.1508, 1.2008, 30, 152730
 hors Horse_Mtn_1932_USGS, 2001-07-18,  JLS ,   ,  ASHTECH,  4600 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 1.1812, 1.2308, 30, 15420
 hors Horse_Mtn_1932_TT10_, 2004-07-25,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE00,  ASH701945E_M,  CR620022602,  NONE, 1.1762, 1.2259, 30, 155130
 hors Horse_Mtn_1932_TT10_, 2005-06-22,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.2299, 1.2789, 30, 153230
 hors Horse_Mtn_1932_TT10_, 2005-06-23,  GDH ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 1.1641, 1.2139, 30, 154930