benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s) 0301 Sta_03-01_1991_CalTra, 1993-09-23, Burgmann Roland , Stanford University , TRIMBLE 4000SSE, 3235A003880, NP, TRM14532.00, 3334A69086, NONE, 1.4067, 0, 30, 15220 0301 Sta_03-01_1991_CalTra, 1993-09-24, Burgmann Roland , Stanford University , TRIMBLE 4000SSE, 3235A003880, NP, TRM14532.00, 3334A69086, NONE, 1.3337, 0, 30, 155630 0301 Unknown, 1994-04-28, Steve Holdorff , National Geodetic Su, TRIMBLE 4000, 1528, SSE, TRM14532.00, 20, NONE, 2.22, 0, 15, 162830 0301 Unknown, 1994-06-22, UNKNOWN , UNKNOWN , TRIMBLE 4000SSE, 3414A05698, NP, TRM22020.00+GP, 0080098672, NONE, 1.0762, 0, 30, 174530 0301 Unknown, 1994-06-23, UNKNOWN , UNKNOWN , TRIMBLE 4000SSE, 3414A05698, NP, TRM22020.00+GP, 0080098672, NONE, 1.6208, 0, 30, 16530 0301 Unknown, 2004-09-14, -Unknown- , -Unknown- , TRIMBLE 5700, 220308760, NP, TRM41249.00, 12606060, NONE, 1.8, 1.8521, 15, 14330 0301 Sta_03-01_1991_CalTr, 2007-10-02, CHS , USGS , ASHTECH, ZE1200526043 , Z-X ZE21, ASH700936D_M, CR14329, NONE, 1.4035, 1.4508, 30, 153430 0301 Sta_03-01_1991_CalTr, 2007-10-03, CHS , USGS , ASHTECH, ZE1200526043 , Z-X ZE21, ASH700936D_M, CR14329, NONE, 1.4096, 1.4569, 30, 15420 0301 Sta_03-01_1991_CalTr, 2008-08-03, CHS , USGS , ASHTECH, ZE120023208 , Z-X ZE21, ASH701945E_M, CR620022602, NONE, 1.4388, 1.4859, 30, 153530 0301 Sta_03-01_1991_CalTr, 2008-08-04, JMS , USGS , ASHTECH, ZE120023202 , Z-X ZE21, ASH701945B_M, CR519993706, NONE, 1.5638, 1.6099, 30, 16530 0301 Sta_03-01_1991_CalTr, 2010-07-21, JMS , USGS , ASHTECH, LP00108.707 , Z-XII 1L001, ASH701945B_M, CR519993703, NONE, 0.6761, 0.7358, 30, 30 0301 Sta_03-01_1991_CalTr, 2010-07-22, JMS , USGS , ASHTECH, LP00108.707 , Z-XII 1L001, ASH701945B_M, CR519993703, NONE, 0.6761, 0.7358, 30, 30 0301 Sta_03-01_1991_CalTr, 2018-10-24, JLS , USGS , JAVAD, 01659 , TRE_G3TH SIGMA3.5.1, ASH700936D_M, CR14330, NONE, 0.7309, 0.7889, 15, 16645 0301 Sta_03-01_1991_CalTr, 2018-10-25, JLS , USGS , JAVAD, 01659 , TRE_G3TH SIGMA3.5.1, ASH700936D_M, CR14330, NONE, 0.7309, 0.7889, 15, 0