benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 skel SKEL_2005_USGS, 2005-10-27,  CHS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.5605, 0.6248, 30, 0
 skel SKEL_2005_USGS, 2005-10-28,  CHS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.5605, 0.6248, 30, 0
 skel SKEL_2005_USGS, 2005-10-29,  CHS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.5605, 0.6248, 30, 0
 skel SKEL_2005_USGS, 2006-08-18,  GDH ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.6055, 0.6679, 30, 0
 skel SKEL_2005_USGS, 2006-08-19,  GDH ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.6055, 0.6679, 30, 0
 skel SKEL_2005_USGS, 2006-08-20,  GDH ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.6055, 0.6679, 30, 0
 skel SKEL_2005_USGS, 2007-08-16,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.6544, 0.7149, 30, 0
 skel SKEL_2005_USGS, 2007-08-17,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.6544, 0.7149, 30, 0
 skel SKEL_2005_USGS, 2007-08-18,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.6544, 0.7149, 30, 0
 skel SKEL_2005_USGS, 2008-07-13,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.5521, 0.6168, 30, 0
 skel SKEL_2005_USGS, 2008-07-14,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.5521, 0.6168, 30, 0
 skel SKEL_2005_USGS, 2008-07-15,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 0.5521, 0.6168, 30, 0
 skel SKEL_2005_USGS, 2010-07-21,  CHS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 0.6222, 0.6839, 15, 0
 skel SKEL_2005_USGS, 2010-07-22,  CHS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 0.6232, 0.6849, 15, 0