benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 jac6 JacksonNo6_1931_1970, 2002-02-26,  JMS ,  USGS ,  ASHTECH,  04600 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.2683, 1.3169, 30, 172230
 jac6 JacksonNo6_1931_1970, 2002-02-27,  JMS ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993706,  NONE, 1.2794, 1.3279, 30, 17430
 jac6 JacksonNo6_1931_1970, 2004-08-10,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 1.2976, 1.3459, 30, 15240
 jac6 JacksonNo6_1931_1970, 2004-08-11,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945B_M,  CR619992801,  NONE, 1.3127, 1.3609, 30, 1620
 jac6 JacksonNo6_1931_1970, 2012-01-18,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 1.3269, 1.3749, 15, 164045
 jac6 JacksonNo6_1931_1970, 2012-01-19,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 1.2602, 1.3089, 15, 161845
 jac6 JacksonNo6_1931_1970, 2018-01-18,  ELP ,  USGS ,  JAVAD,  00618 ,  TRE_G3TH SIGMA3.6.9,  JAVRINGANT_DM,  00585,  NONE, 1.2339, 1.2829, 15, 15945