benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 d280 D280_stmpd_D43_reset, 1992-10-13,   ,   ,  TURBOROGUE,  136 ,   ,  AOAD/M_T,  136,  NONE, 1.0785, 0, 30, 19310
 d280, 1992-10-14,   ,   ,  TURBOROGUE,  136 ,   ,  AOAD/M_T,  136,  NONE, 1.0785, 0, 30, 0
 d280, 1996-09-23,  JMS ,  USGS ,  ASHTECH,  275 ,  Z-XII3 1E86,  ASH700228A,  1026,  NONE, 1.3076, 1.3558, 30, 172530
 d280, 1996-09-24,  CHS ,  USGS ,  ASHTECH,  270 ,  Z-XII3 1E86,  ASH700228A,  1027,  NONE, 1.4041, 1.4515, 30, 16480
 d280, 1998-09-21,  JMS ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 CB00,  ASH700936D_M,  CR14341,  NONE, 1.3368, 1.3848, 30, 172130
 d280, 1998-09-22,  JMS ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 CB00,  ASH700936D_M,  CR14341,  NONE, 1.3722, 1.4198, 30, 16570
 d280 D280_stmpd_D43_reset, 2002-09-13,  JMS ,  USGS ,  ASHTECH,  LP00108.707 ,  Z-XII3 CD00,  ASH700936D_M,  CR14341,  NONE, 1.3864, 1.4339, 30, 145130
 d280 D280_stmpd_D43_reset, 2002-09-18,  WCH ,  USGS MENLO PARK ,  TRIMBLE,  3616A15408 ,  4000SSI NP,  TRM22020.00+GP,  0080049769,  NONE, 1.2753, 0, 30, 155530