benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s) 01qf Unknown, 1994-04-28, Steve Holdorff , National Geodetic Su, TRIMBLE 4000, 1504, SSE, TRM14532.00, 64318, NONE, 1.7134, 0, 15, 175615 CA-HPGN-D 01-QF, 2001-05-20, Jeff Freymueller , Geophysical Inst/UAF, TRIMBLE 4000SSI, 14442, NP, TRM22020.00+GP, 48776, NONE, 1.6036, 0, 30, 3420 01qf Unknown, 2001-05-24, Jeff Freymueller , Geophysical Inst/UAF, TRIMBLE 4000SSI, 14442, NP, TRM22020.00+GP, 48776, NONE, 1.6813, 0, 30, 41930 01qf 01QF_1994_CalTrans, 2004-07-20, JLS , USGS , ASHTECH, LP03360 , Z-XII3 CC00, ASH701945B_M, CR519993703, NONE, 1.2036, 1.2529, 15, 155545 01qf 01QF_1994_CalTrans, 2004-07-28, GDH , USGS , ASHTECH, ZE1200331006 , Z-X ZE00, ASH701945B_M, CR519993702, NONE, 1.3309, 1.3789, 30, 162430