benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 ma80 MADRE_ECC_1980_NCER, 1994-03-09,  UNKNOWN OBSERVER ,  MASS INST. OF TECHNO,  TRIMBLE 4000,  3057,  SSE,  TRM14532.00,  68272,  NONE, 1.0602, 0, 30, 130
 ma80 MADRE_ECC_1980_NCER, 1994-03-10,  UNKNOWN OBSERVER ,  MASS INST. OF TECHNO,  TRIMBLE 4000,  3057,  SSE,  TRM14532.00,  68272,  NONE, 1.0602, 0, 30, 130
 ma80 MADRE_ECC_1980_NCER, 2003-03-22,  KEA ,  UNIV SOUTHERN CALIFO,  ASHTECH Z-XII3,  175,  CD00,  AOAD/M_T,  381,  NONE, 0.9664, 0, 30, 30
 ma80 MADRE_ECC_1980_NCER, 2003-03-23,  KEA ,  UNIV SOUTHERN CALIFO,  ASHTECH Z-XII3,  175,  CD00,  AOAD/M_T,  381,  NONE, 0.9664, 0, 30, 30
 ma80 MADRE_ECC_1980_NCER, 2006-10-22,  JLS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.4124, 0.4857, 30, 0
 ma80 MADRE_ECC_1980_NCER, 2006-10-23,  JLS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.4124, 0.4857, 30, 0
 ma80 MADRE_ECC_1980_NCER, 2006-10-24,  JLS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE21,  ASH700936D_M,  CR14330,  NONE, 0.4124, 0.4857, 30, 0
 ma80 MADRE_ECC_1980_NCER, 2011-03-11,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.5469, 0.6119, 15, 165615
 ma80 MADRE_ECC_1980_NCER, 2011-03-12,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.5469, 0.6119, 15, 0
 ma80 MADRE_ECC_1980_NCER, 2011-03-13,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.5469, 0.6119, 15, 0
 ma80 MADRE_ECC_1980_NCER, 2011-03-14,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.5469, 0.6119, 15, 0
 ma80 MADRE_ECC_1980_NCER, 2011-03-15,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.5469, 0.6119, 15, 0
 ma80 MADRE_ECC_1980_NCER, 2011-03-16,  JLS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.5469, 0.6119, 15, 0