benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s)
 01ch Sta_01CH_1993_CalTra, 2005-12-01,  CS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.4227, 1.4699, 30, 1720
 01ch Sta_01CH_1993_CalTra, 2005-12-02,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.5054, 1.5519, 30, 164030
 01ch Sta_01CH_1993_CalTra, 2006-08-16,  JMS ,  USGS ,  ASHTECH,  ZE120023208 ,  Z-X ZE21,  ASH701945B_M,  CR519993703,  NONE, 1.4449, 1.4919, 30, 16330
 01ch Sta_01CH_1993_CalTra, 2006-08-24,  CHS ,  USGS ,  ASHTECH,  LP020000801 ,  Z-XII3 CD00,  ASH700936D_M,  CR14333,  NONE, 1.4812, 1.5279, 30, 15120
 01ch Sta_01CH_1993_CalTra, 2007-08-18,  JMS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE21,  ASH700936D_M,  CR14333,  NONE, 1.4902, 1.5369, 30, 15380
 01ch Sta_01CH_1993_CalTra, 2007-08-19,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE21,  ASH701945B_M,  CR619992805,  NONE, 1.4399, 1.487, 30, 153330
 01ch Sta_01CH_1993_CalTra, 2008-07-10,  JMS ,  USGS ,  ASHTECH,  LP019992809 ,  Z-XII 1L00,  ASH700936D_M,  CR14333,  NONE, 1.5386, 1.5849, 30, 153830
 01ch Sta_01CH_1993_CalTra, 2008-07-12,  JMS ,  USGS ,  ASHTECH,  ZE120023204 ,  Z-X ZE21,  ASH700936D_M,  CR14333,  NONE, 1.4661, 1.513, 30, 152630
 01ch Sta_01CH_1993_CalTra, 2009-08-19,  CHS ,  USGS ,  ASHTECH,  ZE120023202 ,  Z-X ZE210,  ASH701945E_M,  CR620022605,  NONE, 1.4802, 1.5269, 30, 153330
 01ch Sta_01CH_1993_CalTra, 2009-08-21,  JMS ,  USGS ,  ASHTECH,  ZE1200331017 ,  Z-X ZE210,  ASH701945B_M,  CR519993703,  NONE, 0.7576, 0.8149, 30, 15540
 01ch Sta_01CH_1993_CalTra, 2010-06-30,  CHS ,  USGS ,  ASHTECH,  ZE1200331018 ,  Z-X ZE210,  ASH701945B_M,  CR619992805,  NONE, 1.4167, 1.464, 15, 151945
 01ch Sta_01CH_1993_CalTra, 2010-07-07,  CHS ,  USGS ,  ASHTECH,  ZE1200331006 ,  Z-X ZE210,  ASH701945B_M,  CR619992805,  NONE, 1.4187, 1.4659, 15, 151345
 01ch Sta_01CH_1993_CalTra, 2022-11-16,  JLS ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.7.6,  ASH700936D_M,  CR14244,  NONE, 0.8018, 0.8579, 15, 17260
 01ch Sta_01CH_1993_CalTra, 2022-11-17,  JLS ,  USGS ,  JAVAD,  00620 ,  TRE_G3TH SIGMA3.7.6,  ASH700936D_M,  CR14244,  NONE, 0.8018, 0.8579, 15, 0