benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 cvil Cvil_USGS_unstamped, 2002-02-27,  JMS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 0.6346, 0.6958, 30, 16190
 cvil Cvil_USGS_unstamped, 2002-02-28,  JMS ,  USGS ,  ASHTECH,  LP019992804 ,  Z-XII3 CD00,  ASH701945B_M,  CR619992801,  NONE, 0.6346, 0.6958, 30, 10
 cvil Cvil_USGS_unstamped, 2004-08-10,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE00,  ASH701945E_M,  CR520031626,  NONE, 0.6678, 0.7278, 30, 0
 cvil Cvil_USGS_unstamped, 2004-08-11,  JMS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE00,  ASH701945E_M,  CR520031626,  NONE, 0.6678, 0.7278, 30, 0
 cvil Cvil_USGS_unstamped, 2012-03-08,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 0.7576, 0.8149, 15, 0
 cvil Cvil_USGS_unstamped, 2012-03-09,  JMS ,  USGS ,  ASHTECH,  ZE1200526028 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 0.7576, 0.8149, 15, 0
 cvil Cvil_USGS_unstamped, 2018-04-30,  ELP ,  USGS ,  JAVAD,  01660 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  01592,  NONE, 0.7391, 0.7969, 15, 172945
 cvil Cvil_USGS_unstamped, 2018-05-01,  ELP ,  USGS ,  JAVAD,  01660 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  01592,  NONE, 0.7391, 0.7969, 15, 0
 cvil Cvil_USGS_unstamped, 2018-05-02,  ELP ,  USGS ,  JAVAD,  01660 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  01592,  NONE, 0.7391, 0.7969, 15, 0
 cvil Cvil_USGS_unstamped, 2018-05-03,  ELP ,  USGS ,  JAVAD,  01660 ,  TRE_G3TH SIGMA3.5.1,  JAVRINGANT_DM,  01592,  NONE, 0.7391, 0.7969, 15, 0