benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 grce, 2003-09-13,  MAJ ,  USGS ,  ASHTECH,  LP03203 ,  Z-XII3 CD00,  ASH700936E_C,  CR16374,  NONE, 1.1813, 1.2309, 30, 1610
 grce, 2003-09-14,  SHY ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993706,  NONE, 1.1631, 1.2129, 30, 16330
 grce GRCE_UtahPower, 2007-09-26,  MBA ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 1L00,  ASH701945E_M,  CR620022605,  NONE, 1.464, 1.5109, 30, 16830
 grce GRCE_UtahPower, 2007-09-29,  MBA ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 1L00,  ASH701945E_M,  CR620022605,  NONE, 1.5577, 1.6039, 30, 15130
 grce GRCE_UtahPower, 2011-09-19,  SAH ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR519993706,  NONE, 0.618, 0.6799, 15, 16415
 grce GRCE_UtahPower, 2016-09-08,  JLS ,  USGS ,  JAVAD,  01661 ,  TRE_G3TH SIGMA3.5.9,  ASH701945B_M,  CR519993703,  NONE, 0.8458, 0.9009, 15, 14250
 grce GRCE_UtahPower, 2016-09-09,  JLS ,  USGS ,  JAVAD,  01661 ,  TRE_G3TH SIGMA3.5.9,  ASH701945B_M,  CR519993703,  NONE, 0.8458, 0.9009, 15, 0