benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 vya1, 1999-09-15,  GDH ,   ,  ASHTECH,  4600 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.2823, 1.3308, 30, 16030
 vya1, 1999-09-19,  GDH ,   ,  ASHTECH,  4600 ,  Z-XII3 CC00,  ASH700936D_M,  CR14341,  NONE, 1.3449, 1.3928, 30, 15520
 vya1 Vya1_RMS20_1/4_55FT_, 2008-09-15,  JMS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII 1L00,  ASH701945E_M,  CR520031626,  NONE, 1.3036, 1.3519, 30, 15500
 vya1 Vya1_RMS20_1/4_55FT_, 2008-09-19,  SAH ,  USGS ,  ASHTECH,  579 ,  Z-XII 1L00,  ASH700936D_M,  CR14244,  NONE, 1.1874, 1.2369, 30, 154430
 vya1 Vya1_RMS20_1/4_55FT_, 2013-09-12,  JLS ,  USGS ,  JAVAD,  00618 ,  TRE_G3TH SIGMA3.3.1,  ASH700936D_M,  CR14333,  NONE, 1.2278, 1.2769, 15, 142145
 vya1 Vya1_RMS20_1/4_55FT_, 2013-09-13,  JMS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.3682, 1.4159, 15, 155345