benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 cedr, 1999-09-14,  GDH ,   ,  ASHTECH,  4600 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.2489, 1.2977, 30, 15510
 cedr, 1999-09-23,  GDH ,   ,  ASHTECH,  4600 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.25, 1.2988, 30, 16030
 cedr, 2003-06-17,  ETE ,  USGS CVO ,  ASHTECH,  LP019992604 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993302,  NONE, 1.3036, 1.3519, 30, 142530
 cedr, 2003-06-28,  ETE ,  USGS CVO ,  ASHTECH,  LP019992604 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993302,  NONE, 1.3662, 1.4139, 30, 1410
 cedr Cedr_02-SX_1997_CalT, 2008-09-14,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH700936D_M,  CR14341,  NONE, 0.8489, 0.9039, 30, 14400
 cedr Cedr_02-SX_1997_CalT, 2008-09-17,  SAH ,  USGS ,  ASHTECH,  579 ,  Z-XII 1L00,  ASH700936D_M,  CR14244,  NONE, 1.2774, 1.3259, 30, 15590
 cedr Cedr_02-SX_1997_CalT, 2013-09-10,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH700936D_M,  CR14244,  NONE, 1.4741, 1.5209, 15, 152845
 cedr Cedr_02-SX_1997_CalT, 2013-09-11,  JLS ,  USGS ,  JAVAD,  00618 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 1.158, 1.2079, 15, 14845