benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 avrm, 2010-01-21,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 1.2541, 1.3029, 15, 164945
 avrm, 2010-01-22,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH700936D_M,  CR14330,  NONE, 1.3036, 1.3519, 15, 164545
 avrm, 2010-11-03,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 1.239, 1.2879, 15, 155115
 avrm, 2010-11-04,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR620022602,  NONE, 1.3269, 1.3749, 15, 155445
 avrm AVRM_2008_USGS, 2012-04-07,  JLS ,  USGS ,  JAVAD,  00622 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 1.1874, 1.2369, 15, 14215
 avrm AVRM_2008_USGS, 2012-04-19,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 1.2106, 1.2599, 15, 145045
 avrm AVRM_2008_USGS, 2013-03-27,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 1.3743, 1.4219, 15, 152945
 avrm AVRM_2008_USGS, 2013-04-02,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH700936D_M,  CR14341,  NONE, 1.2208, 1.27, 15, 154815
 avrm AVRM_2008_USGS, 2016-03-22,  ELP ,  USGS ,  JAVAD,  00598 ,  TRE_G3TH SIGMA3.3.1,  JAVRINGANT_DM,  00488,  NONE, 1.1479, 1.1979, 15, 151645
 avrm AVRM_2008_USGS, 2016-03-23,  ELP ,  USGS ,  JAVAD,  01658 ,  TRE_G3TH SIGMA3.5.9,  JAVRINGANT_DM,  00488,  NONE, 1.2339, 1.2829, 15, 145245