benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 cjck Crackerjack_94_USGS, 1994-03-24,  WKG ,  USGS ,  ASHTECH,  831 ,  LM-XII3 7A,  ASH700228A,  1027,  NONE, 1.1759, 1.2256, 30, 17830
 cjck Crackerjack_94_USGS, 2002-04-03,  JMS ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992801,  NONE, 1.3006, 1.3489, 30, 10
 cjck Crackerjack_94_USGS, 2002-04-04,  JMS ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CC00,  ASH701945B_M,  CR619992801,  NONE, 1.3006, 1.3489, 30, 10
 cjck Crackerjack_94_USGS, 2006-04-20,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14329,  NONE, 1.2824, 1.3309, 30, 0
 cjck Crackerjack_94_USGS, 2006-04-21,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14329,  NONE, 1.2824, 1.3309, 30, 0
 cjck Crackerjack_94_USGS, 2006-04-22,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14329,  NONE, 1.2824, 1.3309, 30, 0
 cjck Crackerjack_94_USGS, 2011-07-07,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 0.5951, 0.6579, 15, 174530
 cjck Crackerjack_94_USGS, 2011-07-08,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 0.5951, 0.6579, 15, 0
 cjck Crackerjack_94_USGS, 2011-07-09,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 0.5951, 0.6579, 15, 0
 cjck Crackerjack_94_USGS, 2011-07-10,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 0.5951, 0.6579, 15, 0