benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 pigg, 2001-06-07,  GDH ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945.02B,  CR619992801,  NONE, 1.3691, 1.4167, 30, 16100
 pigg, 2001-06-08,  GDH ,   ,  ASHTECH,  lp019992805 ,  Z-XII3 CD00,  ASH701945.02B,  CR619992801,  NONE, 1.3691, 1.4167, 30, 10
 pigg Pig_NCER, 2003-04-02,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZC00,  ASH701945B_M,  CR619992805,  NONE, 1.4509, 1.4978, 30, 0
 pigg Pig_NCER, 2003-04-03,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZC00,  ASH701945B_M,  CR619992805,  NONE, 1.4509, 1.4978, 30, 0
 pigg Pig_NCER, 2005-04-27,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14341,  NONE, 1.5235, 1.5699, 30, 0
 pigg Pig_NCER, 2005-04-28,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14341,  NONE, 1.5235, 1.5699, 30, 0
 pigg Pig_NCER, 2005-04-29,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14341,  NONE, 1.5235, 1.5699, 30, 0
 pigg Pig_NCER, 2005-04-30,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14341,  NONE, 1.5235, 1.5699, 30, 0
 pigg Pig_NCER, 2005-05-01,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14341,  NONE, 1.5235, 1.5699, 30, 0
 pigg Pig_NCER, 2005-05-02,  GDH ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE21,  ASH700936D_M,  CR14341,  NONE, 1.5235, 1.5699, 30, 0
 pigg Pig_NCER, 2006-05-18,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.464, 1.5109, 30, 17830
 pigg Pig_NCER, 2006-05-19,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.464, 1.5109, 30, 0
 pigg Pig_NCER, 2006-05-20,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.463, 1.5099, 30, 0
 pigg Pig_NCER, 2006-05-21,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.463, 1.5099, 30, 0
 pigg Pig_NCER, 2006-05-22,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.462, 1.5089, 30, 0
 pigg Pig_NCER, 2006-05-23,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH700936D_M,  CR14244,  NONE, 1.462, 1.5089, 30, 0
 pigg Pig_1986_NCER, 2009-03-26,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 1.3834, 1.4309, 30, 173930
 pigg Pig_1986_NCER, 2009-03-27,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 1.3834, 1.4309, 30, 0
 pigg Pig_1986_NCER, 2009-03-28,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 1.3834, 1.4309, 30, 0
 pigg Pig_1986_NCER, 2009-03-29,  CHS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE210,  ASH701945E_M,  CR620022601,  NONE, 1.3834, 1.4309, 30, 0
 pigg Pig_1986_NCER, 2016-05-17,  ELP ,  USGS ,  JAVAD,  01658 ,  TRE_G3TH SIGMA3.5.9,  JAVRINGANT_DM,  00585,  NONE, 1.0739, 1.1249, 15, 165045
 pigg Pig_1986_NCER, 2016-05-18,  ELP ,  USGS ,  JAVAD,  01658 ,  TRE_G3TH SIGMA3.5.9,  JAVRINGANT_DM,  00585,  NONE, 1.0739, 1.1249, 15, 0
 pigg Pig_1986_NCER, 2016-05-19,  ELP ,  USGS ,  JAVAD,  01658 ,  TRE_G3TH SIGMA3.5.9,  JAVRINGANT_DM,  00585,  NONE, 1.0739, 1.1249, 15, 0
 pigg Pig_1986_NCER, 2016-05-20,  ELP ,  USGS ,  JAVAD,  01658 ,  TRE_G3TH SIGMA3.5.9,  JAVRINGANT_DM,  00585,  NONE, 1.0739, 1.1249, 15, 0
 pigg Pig_1986_NCER, 2022-04-13,  ELP ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01592,  NONE, 1.0079, 1.0599, 15, 181730
 pigg Pig_1986_NCER, 2022-04-14,  ELP ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01592,  NONE, 1.0079, 1.0599, 15, 0
 pigg Pig_1986_NCER, 2022-04-15,  ELP ,  USGS ,  JAVAD,  01337 ,  TRE_G3TH SIGMA3.7.6,  JAVRINGANT_DM,  01592,  NONE, 1.0079, 1.0599, 15, 0