benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 phik, 2003-09-15,  JMS ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022605,  NONE, 1.2036, 1.2529, 30, 17270
 phik, 2003-09-16,  JMS ,  USGS ,  ASHTECH,  LP019992803 ,  Z-XII3 CD00,  ASH701945E_M,  CR620022605,  NONE, 1.2036, 1.2529, 30, 10
 phik PHIK_USGS, 2007-09-20,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH701945B_M,  CR519993702,  NONE, 0.55, 0.6148, 30, 0
 phik PHIK_USGS, 2007-09-21,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH701945B_M,  CR519993702,  NONE, 0.55, 0.6148, 30, 0
 phik PHIK_USGS, 2015-09-17,  SAH ,  USGS ,  ASHTECH,  ZE1200411029 ,  Z-X ZE210,  ASH701945E_M,  CR520031622,  NONE, 0.6999, 0.7588, 15, 152015
 phik PHIK_USGS, 2015-09-18,  SAH ,  USGS ,  ASHTECH,  ZE1200411029 ,  Z-X ZE210,  ASH701945E_M,  CR520031622,  NONE, 0.6999, 0.7588, 15, 0