benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 c300, 1994-06-08,  unknown ,  NGS ,  TRIMBLE 4000SST,  1571,  5.60,  TRM14532.00,  747,  NONE, 1.26, 0, 15, 182515
 c300, 1994-06-10,  unknown ,  NGS ,  TRIMBLE 4000SSE,  1571,  5.60,  TRM14532.00,  747,  NONE, 2.22, 0, 15, 181715
 C300, 1995-09-24,  unknown ,  unknown ,  TRIMBLE 4000SSE,  3451,  6.12,  TRM14532.00,  68498,  NONE, 1.1651, 0, 30, 130
 c300 D300_stmpd_Davis_1944, 1996-09-20,  JMS ,  USGS ,  ASHTECH Z-XII3,  275,  1E86,  ASH700228A,  1026,  NONE, 1.2161, 1.2653, 30, 0
 c300 D300_stmpd_Davis_1944, 1996-09-22,  KAS ,  USGS ,  ASHTECH Z-XII3,  *LP00141,  1F00,  ASH700718B,  11416,  NONE, 0.4304, 0.5023, 30, 0
 c300 C300_stmpd_Davis_194, 1992-10-07,   ,   ,  TURBOROGUE,  142 ,   ,  AOAD/M_T,  142,  NONE, 1.0303, 0, 30, 18250
 c300 C300_stmpd_Davis_194, 1992-10-08,   ,   ,  TURBOROGUE,  142 ,   ,  AOAD/M_T,  142,  NONE, 1.0303, 0, 30, 0
 c300 C300_stmpd_Davis_194, 1992-10-09,   ,   ,  TURBOROGUE,  142 ,   ,  AOAD/M_T,  142,  NONE, 0.852, 0, 30, 0
 c300 C300_stmpd_Davis_194, 1992-10-12,   ,   ,  TURBOROGUE,  LP00108 ,   ,  AOAD/M_T,  108,  NONE, 0.9584, 0, 30, 17400
 c300 D300_stmpd_Davis_194, 1996-09-19,  JMS ,  USGS ,  ASHTECH,  275 ,  Z-XII3 1E86,  ASH700228A,  1026,  NONE, 1.2161, 1.2653, 30, 18270
 c300 D300_stmpd_Davis_194, 1996-09-21,  KAS ,  USGS ,  ASHTECH,  *LP00141 ,  Z-XII3 1F00,  ASH700718B,  11416,  NONE, 0.4304, 0.5023, 30, 15110
 c300 D300_stmpd_Davis_194, 1998-09-17,  JMS ,  USGS ,  ASHTECH,  192 ,  Z-XII3 CB00,  ASH700936E_C,  CR16116,  NONE, 1.2732, 1.3218, 30, 155530
 c300 D300_stmpd_Davis_194, 1998-09-18,  JMS ,  USGS ,  ASHTECH,  192 ,  Z-XII3 CB00,  ASH700936E_C,  CR16116,  NONE, 1.2732, 1.3218, 30, 30
 c300 D300_stmpd_Davis_194, 1998-09-19,  CHS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 CB00,  ASH700936E_C,  CR16379,  NONE, 1.2307, 1.2797, 30, 154630
 c300 D300_stmpd_Davis_194, 1998-09-20,  CHS ,  USGS ,  ASHTECH,  O4582 ,  Z-XII3 CB00,  ASH700936E_C,  CR16379,  NONE, 1.2307, 1.2797, 30, 10
 c300 C300_stmpd_Davis_194, 2000-09-15,  JMS ,   ,  ASHTECH,  lp019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 0.4467, 0.5175, 30, 153230
 c300 C300_stmpd_Davis_194, 2000-09-16,  JMS ,   ,  ASHTECH,  lp019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 0.4467, 0.5175, 30, 10
 c300 C300_stmpd_Davis_194, 2000-09-17,  JMS ,   ,  ASHTECH,  lp019992804 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 0.4467, 0.5175, 30, 10
 c300 C300_stmpd_Davis_194, 2002-04-30,  JMS ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993706,  NONE, 1.2571, 1.3059, 30, 17320
 c300 C300_stmpd_Davis_194, 2002-05-01,  JMS ,  USGS ,  ASHTECH,  04597 ,  Z-XII3 CC00,  ASH701945B_M,  CR519993706,  NONE, 1.2571, 1.3059, 30, 10
 c300 C300_stmpd_Davis_194, 2004-09-20,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945E_M,  CR520031626,  NONE, 0.5078, 0.5748, 30, 0
 c300 C300_stmpd_Davis_194, 2004-09-21,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE00,  ASH701945E_M,  CR520031626,  NONE, 0.5078, 0.5748, 30, 0
 c300 C300_stmpd_Davis_194, 2009-10-31,  JLS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.735, 0.7929, 30, 174215
 c300 C300_stmpd_Davis_194, 2009-11-01,  JLS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.735, 0.7929, 30, 0
 c300 C300_stmpd_Davis_194, 2009-11-02,  JLS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH700936D_M,  CR14333,  NONE, 0.735, 0.7929, 30, 0