benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 prh2 Pt_Reyes_Hill_2_1951, 1992-02-14,  JMS ,  USGS ,  ASHTECH,  762 ,  LM-XII3 6A,  ASH700228A,  0745,  NONE, 1.192, 1.2415, 30, 7230
 prh2 Pt_Reyes_Hill_2_1951, 1993-01-12,  JMS ,  USGS ,  ASHTECH,  1104 ,  LM-XII3 6M24,  ASH700228D,  1068,  NONE, 1.2473, 1.2961, 30, 122530
 prh2 Pt_Reyes_Hill_2_1951, 1994-04-20,  JMS ,  USGS ,  ASHTECH,  765 ,  LM-XII3 7A,  ASH700228D,  1058,  NONE, 1.2171, 1.2663, 30, 13200
 prh2 Pt_Reyes_Hill_2_1951, 1995-09-18,  GDH ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1E24,  ASH700718B,  11404,  NONE, 1.2443, 1.2932, 30, 18030
 prh2 Pt_Reyes_Hill_2_1951, 1996-10-29,  GDH ,  USGS ,  ASHTECH,  707 ,  Z-XII3 1F00,  ASH700718B,  11404,  NONE, 1.1338, 1.184, 30, 164030
 prh2 Pt_Reyes_Hill_2_1951, 1997-02-18,  CHS ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1E95,  ASH700228D,  1036,  NONE, 1.4523, 1.4992, 30, 16560
 prh2 Pt_Reyes_Hill_2_1951, 1997-02-19,  CHS ,  USGS ,  ASHTECH,  O4591 ,  Z-XII3 1E95,  ASH700228D,  1036,  NONE, 1.3438, 1.3917, 30, 165230
 prh2 Pt_Reyes_Hill_2_1951, 1997-11-17,  GDH ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E95,  ASH700936D_M,  CR14333,  NONE, 1.2257, 1.2748, 30, 17470
 prh2 Pt_Reyes_Hill_2_1951, 1997-12-01,  JMS ,  USGS ,  ASHTECH,  O4579 ,  Z-XII3 1E95,  ASH700936D_M,  CR14330,  NONE, 1.3166, 1.3648, 30, 17150
 prh2 Pt_Reyes_Hill_2_1951, 1998-03-03,  CHS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1E95,  ASH700936D_M,  CR14330,  NONE, 1.3025, 1.3508, 30, 1720
 prh2 Pt_Reyes_Hill_2_1951, 1998-03-04,  CHS ,  USGS ,  ASHTECH,  O4597 ,  Z-XII3 1E95,  ASH700936D_M,  CR14330,  NONE, 1.3187, 1.3668, 30, 16330
 prh2 Pt_Reyes_Hill_2_1951, 1998-12-01,  JMS ,  USGS ,  ASHTECH,  LP03360 ,  Z-XII3 CB00,  ASH700936D_M,  CR14244,  NONE, 1.3601, 1.4079, 30, 16480
 prh2 Pt_Reyes_Hill_2_1951, 1998-12-08,  JMS ,  USGS ,  ASHTECH,  LP03362 ,  Z-XII3 CB00,  ASH700936E_C,  CR16116,  NONE, 1.2894, 1.3378, 30, 10
 prh2 Pt_Reyes_Hill_2_1951, 2001-01-09,  JMS ,   ,  ASHTECH,  O4591 ,  Z-XII3 CD00,  ASH700936D_M,  CR14329,  NONE, 1.2742, 1.3228, 30, 30
 prh2 Pt_Reyes_Hill_2_1951, 2001-01-10,  JMS ,   ,  ASHTECH,  O4591 ,  Z-XII3 CD00,  ASH700936D_M,  CR14329,  NONE, 1.2742, 1.3228, 30, 30
 prh2 Pt_Reyes_Hill_2_1951, 2002-11-20,  GDH ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.2238, 1.2729, 30, 10
 prh2 Pt_Reyes_Hill_2_1951, 2002-11-21,  GDH ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.2238, 1.2729, 30, 10
 prh2 Pt_Reyes_Hill_2_1951, 2002-11-22,  GDH ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII3 CD00,  ASH701945B_M,  CR519993703,  NONE, 1.2238, 1.2729, 30, 10
 prh2 Pt_Reyes_Hill_2_1951, 2006-03-28,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 1.245, 1.2939, 30, 0
 prh2 Pt_Reyes_Hill_2_1951, 2006-03-29,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 1.245, 1.2939, 30, 0
 prh2 Pt_Reyes_Hill_2_1951, 2006-03-30,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945E_M,  CR620022605,  NONE, 1.245, 1.2939, 30, 0
 prh2 Pt_Reyes_Hill_2_1951, 2009-03-10,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR619992805,  NONE, 0.511, 0.5779, 30, 0
 prh2 Pt_Reyes_Hill_2_1951, 2009-03-11,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR619992805,  NONE, 0.511, 0.5779, 30, 0
 prh2 Pt_Reyes_Hill_2_1951, 2009-03-12,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR619992805,  NONE, 0.511, 0.5779, 30, 0
 prh2 Pt_Reyes_Hill_2_1951, 2009-03-13,  CHS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945B_M,  CR619992805,  NONE, 0.511, 0.5779, 30, 0
 prh2 Pt_Reyes_Hill_2_1951, 2015-01-14,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.5054, 1.5519, 15, 0
 prh2 Pt_Reyes_Hill_2_1951, 2015-01-15,  JMS ,  USGS ,  ASHTECH,  ZE1200526043 ,  Z-X ZE210,  ASH701945E_M,  CR520031626,  NONE, 1.5054, 1.5519, 15, 0