benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 c616, 1994-11-07,  M. GINSKEY ,  UCLA ,  TRIMBLE 4000,  1053,  SST,  TRM14532.00,  272,  NONE, 0.8293, 0, 30, 18340
 c616, 2000-08-29,  ZKS ,  UNIV CALIF LOS ANGEL,  ASHTECH Z-XII3,  148,  1L00,  ASH700936A_M,  768,  NONE, 1.1248, 0, 30, 30
 c616 C616_1942_USCGS, 2010-03-29,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945E_M,  CR520031622,  NONE, 1.1307, 1.1809, 15, 16715
 c616 C616_1942_USCGS, 2010-04-28,  CHS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH701945E_M,  CR520031615,  NONE, 1.159, 1.2089, 15, 151715
 c616 C616_1942_USCGS, 2012-06-06,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 1.1702, 1.22, 15, 153845
 c616 C616_1942_USCGS, 2012-06-07,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 1.1722, 1.2219, 15, 153645
 c616 C616_1942_USCGS, 2013-10-28,  JLS ,  USGS ,  JAVAD,  00618 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 1.1428, 1.1929, 15, 15715
 c616 C616_1942_USCGS, 2013-11-06,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14244,  NONE, 1.1681, 1.2179, 15, 163845
 c616 C616_1942_USCGS, 2015-04-07,  JLS ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14329,  NONE, 0.5584, 0.6228, 15, 165045
 c616 C616_1942_USCGS, 2015-04-08,  JLS ,  USGS ,  JAVAD,  00624 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14329,  NONE, 0.5584, 0.6228, 15, 0