benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 smok SMOKE_USC&GS, 1994-06-21,  unknown ,  NGS ,  TRIMBLE 4000SST,  458,  4.81,  TRM14532.00,  19,  NONE, 2.22, 0, 15, 173745
 smok SMOKE_USC&GS, 1994-07-08,  unknown ,  NGS ,  TRIMBLE 4000SST,  486,  4.81,  TRM14532.00,  18,  NONE, 2.22, 0, 15, 162415
 smok SMOKE_USC&GS, 1999-05-12,   ,   ,  TRIMBLE 4000SSE,  4872,  7.29,  4000ST,  728,  L1/L2, 2, 0, 30, 1510
 smok SMOKE_USC&GS, 1999-05-13,   ,   ,  TRIMBLE 4000SSE,  4872,  7.29,  4000ST,  728,  L1/L2, 2, 0, 30, 1920
 smok SMOKE_USC&GS, 1999-05-14,   ,   ,  TRIMBLE 4000SSE,  4872,  7.29,  4000ST,  728,  L1/L2, 2, 0, 30, 14530
 smok SMOKE_USC&GS, 2000-09-15,  CWW ,  USGS ,  ASHTECH,  203 ,  Z-XII3 CD00,  ASH700936E_C,  CR16364,  NONE, 1.1376, 1.1877, 30, 155930
 smok SMOKE_USC&GS, 2000-09-16,  CWW ,   ,  ASHTECH,  203 ,  Z-XII3 CD00,  ASH700936E_C,  CR16364,  NONE, 1.1376, 1.1877, 30, 30
 smok SMOKE_USC&GS, 2000-09-20,  CWW ,   ,  ASHTECH,  188 ,  Z-XII3 CD00,  ASH700936E_C,  CR16381,  NONE, 1.2014, 1.2507, 30, 250
 smok SMOKE_USC&GS, 2004-09-16,  WCH ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 1.3511, 1.3989, 30, 1620
 smok SMOKE_USC&GS, 2004-09-25,  RWB ,  USGS ,  TRIMBLE,  21140 ,  4000SSI NP,  TRM29659.00,  05208,  NONE, 1.3391, 0, 0, 14350
 smok SMOKE_USC&GS, 2004-09-26,  RWB ,  USGS ,  TRIMBLE,  21140 ,  4000SSI NP,  TRM29659.00,  05208,  NONE, 1.3391, 0, 0, 0
 smok SMOKE_1940_USC&GS, 2009-09-19,  CWW ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII 1L001,  ASH700936D_M,  CR14330,  NONE, 0.6575, 0.7179, 30, 155530
 smok SMOKE_1940_USC&GS, 2009-11-14,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 0.6906, 0.7498, 30, 0