benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 batt, 1999-09-13,  GWB ,  USGS ,  ASHTECH,  278 ,  Z-XII3 CD00,  ASH700936E_C,  CR16379,  NONE, 0.4585, 0.5285, 30, 145830
 batt, 1999-09-14,  GWB ,  USGS ,  ASHTECH,  278 ,  Z-XII3 CD00,  ASH700936E_C,  CR16379,  NONE, 0.4585, 0.5285, 30, 30
 batt, 1999-09-22,  GWB ,  USGS ,  ASHTECH,  278 ,  Z-XII3 CD00,  ASH700936E_C,  CR16379,  NONE, 0.5708, 0.6346, 30, 14300
 batt Batt_stmpd_FAA_BAM_B, 2003-06-24,  WCH ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 0.5173, 0.5838, 30, 15310
 batt Batt_stmpd_FAA_BAM_B, 2003-06-25,  WCH ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 0.5173, 0.5838, 30, 0
 batt, 2003-06-30,  WRT ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.4509, 1.4978, 30, 30
 batt, 2003-07-01,  WRT ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.4509, 1.4978, 30, 30
 batt Batt_FAA_BAM_B_1992_, 2008-09-15,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 0.6699, 0.7298, 30, 16130
 batt Batt_FAA_BAM_B_1992_, 2008-09-16,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 0.6699, 0.7298, 30, 0
 batt Batt_FAA_BAM_B_1992_, 2008-09-17,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 0.6699, 0.7298, 30, 0