benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 sd15 StormDrain_18FT_15_S, 2001-01-22,  CHS ,   ,  ASHTECH,  801 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993702,  NONE, 1.258, 1.3067, 30, 16540
 sd15 StormDrain_18FT_15_S, 2001-01-23,  JMS ,   ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14329,  NONE, 1.3934, 1.4409, 30, 16490
 sd15 StormDrain_18FT_15_S, 2003-01-13,  JMS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.3935, 1.441, 30, 17580
 sd15 StormDrain_18FT_15_S, 2003-01-14,  CHS ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH700936D_M,  CR14330,  NONE, 1.346, 1.3939, 30, 163230
 sd15 StormDrain_18FT_15_S, 2006-01-25,  CHS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.2481, 1.2969, 30, 165030
 sd15 StormDrain_18FT_15_S, 2006-01-26,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.2349, 1.2839, 30, 172330
 sd15 StormDrain_18FT_15_S, 2014-06-17,  ELP ,  USGS ,  JAVAD,  00619 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022601,  NONE, 1.0992, 1.1499, 15, 155545
 sd15 StormDrain_18FT_15_S, 2014-06-19,  ELP ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.3.1,  ASH701945E_M,  CR620022601,  NONE, 1.0891, 1.1399, 15, 145045