benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 shee SHEE_2005_USGS, 2009-10-26,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 0.8089, 0.8648, 30, 153615
 shee SHEE_2005_USGS, 2009-10-27,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 0.8069, 0.8629, 30, 16945
 shee SHEE_2005_USGS, 2011-02-10,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945B_M,  CR619992805,  NONE, 0.7607, 0.8179, 15, 0
 shee SHEE_2005_USGS, 2011-02-11,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945B_M,  CR619992805,  NONE, 0.7607, 0.8179, 15, 0
 shee SHEE_2005_USGS, 2012-04-28,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.8489, 0.9039, 15, 16245
 shee SHEE_2005_USGS, 2012-04-29,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.8489, 0.9039, 15, 0
 shee SHEE_2005_USGS, 2012-04-30,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.8489, 0.9039, 15, 0