benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 slr1 Slate_No1_1953_USC&G, 1994-07-10,  KWC ,  USGS ,  ASHTECH,  764 ,  LM-XII3 7A,  ASH700228A,  0598,  NONE, 0.5753, 0.6389, 30, 17420
 slr1 Slate_No1_1953_USC&G, 2000-08-17,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 0.5708, 0.6346, 30, 30
 slr1 Slate_No1_1953_USC&G, 2000-08-18,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 0.5708, 0.6346, 30, 30
 slr1 Slate_No1_1953_USC&G, 2004-05-13,  JMS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-X ZE00,  ASH701945E_M,  CR520031622,  NONE, 1.0546, 1.1059, 30, 0
 slr1 Slate_No1_1953_USC&G, 2004-05-14,  JMS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-X ZE00,  ASH701945E_M,  CR520031622,  NONE, 1.0546, 1.1059, 30, 0
 slr1 Slate_No1_1953_USC&G, 2004-05-15,  JMS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-X ZE00,  ASH701945E_M,  CR520031622,  NONE, 1.0546, 1.1059, 30, 0