benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 blmt, 1999-09-22,  CWW ,   ,  ASHTECH,  188 ,  Z-XII3 CD00,  ASH700936E_C,  CR16365,  NONE, 1.1457, 1.1957, 30, 16230
 blmt, 1999-09-23,  CWW ,   ,  ASHTECH,  188 ,  Z-XII3 CD00,  ASH700936E_C,  CR16365,  NONE, 1.1457, 1.1957, 30, 0
 blmt BLMT_Unstmpd_USGS, 2003-06-27,  WCH ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 0.4524, 0.5228, 30, 152630
 blmt BLMT_Unstmpd_USGS, 2003-06-28,  WCH ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 0.4524, 0.5228, 30, 0
 blmt BLMT_Unstmpd_USGS, 2003-06-30,  CWW ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993702,  NONE, 0.5247, 0.5908, 30, 15830
 blmt BLMT_Unstmpd_USGS, 2003-07-01,  CWW ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993702,  NONE, 0.5247, 0.5908, 30, 10
 blmt BLMT_Unstmpd_USGS, 2008-10-21,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.644, 0.7049, 30, 164515
 blmt BLMT_Unstmpd_USGS, 2008-10-25,  JLS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR519993703,  NONE, 1.1955, 1.2449, 30, 151615
 blmt BLMT_Unstmpd_USGS, 2014-10-21,  JLS ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.3.1,  ASH701945B_M,  CR519993702,  NONE, 0.7432, 0.8008, 15, 163315