benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 77rt 770_RT_Cal_Div_Hwy, 1994-06-01,  GDH ,  USGS ,  ASHTECH,  99 ,  LM-XII3 7A,  ASH700228D,  1036,  NONE, 1.375, 1.4226, 30, 14420
 77rt 770_RT_Cal_Div_Hwy, 1995-09-11,  CHS ,  USGS ,  ASHTECH,  *LP00108 ,  LM-XII3 7A,  ASH700228A,  1026,  NONE, 1.5046, 1.5511, 30, 1770
 77rt 770_RT_Cal_Div_Hwy, 1996-10-22,  CHS ,  USGS ,  ASHTECH,  143 ,  Z-XII3 1F00,  ASH700718B,  11401,  NONE, 1.4669, 1.5138, 30, 155930
 77rt 770_RT_Cal_Div_Hwy, 1997-09-09,  CHS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1E95,  ASH700936D_M,  CR14244,  NONE, 1.4629, 1.5098, 30, 1640
 77rt 770_RT_Cal_Div_Hwy, 1997-09-10,  CHS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1E95,  ASH700936D_M,  CR14244,  NONE, 1.4629, 1.5098, 30, 10
 77rt 770_RT_Cal_Div_Hwy, 1998-11-16,  JMS ,  USGS ,  ASHTECH,  LP03348 ,  Z-XII3 CB00,  ASH700936E_C,  CR16980,  NONE, 1.3136, 1.3618, 30, 224330
 77rt 770_RT_Cal_Div_Hwy, 1998-11-17,  JMS ,  USGS ,  ASHTECH,  LP03348 ,  Z-XII3 CB00,  ASH700936E_C,  CR16980,  NONE, 1.3136, 1.3618, 30, 10
 77rt 770_RT_Cal_Div_Hwy, 1998-11-18,  JMS ,  USGS ,  ASHTECH,  LP03348 ,  Z-XII3 CB00,  ASH700936E_C,  CR16980,  NONE, 1.3136, 1.3618, 30, 10
 77rt 770_RT_Cal_Div_Hwy, 2000-04-15,  JMS ,   ,  ASHTECH,  801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 1.5435, 1.5898, 30, 19530
 77rt 770_RT_Cal_Div_Hwy, 2000-04-16,  JMS ,   ,  ASHTECH,  801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 1.5435, 1.5898, 30, 30
 77rt 770_RT_Cal_Div_Hwy, 2000-04-17,  JMS ,   ,  ASHTECH,  801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 1.5435, 1.5898, 30, 30
 77rt 770_RT_Cal_Div_Hwy, 2000-04-18,  JMS ,   ,  ASHTECH,  801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14244,  NONE, 1.5435, 1.5898, 30, 30
 77rt 770_RT_Cal_Div_Hwy, 2001-11-08,  JMS ,   ,  ASHTECH,  O4582 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 1.47, 1.5168, 30, 30
 77rt 770_RT_Cal_Div_Hwy, 2001-11-09,  JMS ,   ,  ASHTECH,  O4582 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 1.47, 1.5168, 30, 30
 77rt 770_RT_Cal_Div_Hwy, 2004-03-13,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993706,  NONE, 1.4146, 1.4619, 30, 30
 77rt 770_RT_Cal_Div_Hwy, 2004-03-14,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993706,  NONE, 1.4146, 1.4619, 30, 30
 77rt 770_RT_Cal_Div_Hwy, 2004-03-15,  GDH ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993706,  NONE, 1.4146, 1.4619, 30, 30