benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s) grve GRVE_2006_USGS, 2006-11-16, JMS , USGS , ASHTECH Z-X, ZE120023202, ZE21, ASH701945E_M, CR520031626, NONE, 1.4852, 1.5319, 30, 174530 grve GRVE_2006_USGS, 2006-11-17, JMS , USGS , ASHTECH Z-X, ZE1200526043, ZE21, ASH701945E_M, CR520031622, NONE, 1.5054, 1.5519, 30, 162930 grve GRVE_2006_USGS, 2008-07-14, JMS , USGS , ASHTECH Z-XII, LP00108.707, 1L00, ASH701945B_M, CR519993706, NONE, 1.463, 1.5099, 30, 153830 grve GRVE_2006_USGS, 2008-07-15, JMS , USGS , ASHTECH Z-XII, LP020000801, 1L00, ASH701945B_M, CR519993706, NONE, 1.5285, 1.5749, 30, 1640 grve GRVE_2006_USGS, 2008-07-30, JMS , USGS , ASHTECH Z-X, ZE120023204, ZE21, ASH701945B_M, CR619992805, NONE, 1.4913, 1.5379, 30, 15550 grve GRVE_2006_USGS, 2009-08-12, JMS , USGS , ASHTECH Z-X, ZE1200526043, ZE210A13, ASH701945E_M, CR520031626, NONE, 1.6081, 1.6539, 30, 16140 grve GRVE_2006_USGS, 2009-08-20, CHS , USGS , ASHTECH Z-X, ZE120023202, ZE210A13, ASH701945E_M, CR620022605, NONE, 1.3602, 1.4079, 30, 152730 grve GRVE_2006_USGS, 2010-06-16, JMS , USGS , ASHTECH Z-X, ZE120023208, ZE210A13, ASH700936D_M, CR14341, NONE, 1.5265, 1.5729, 15, 154145 grve GRVE_2006_USGS, 2010-06-24, JMS , USGS , ASHTECH Z-X, ZE1200331006, ZE210A13, ASH701945E_M, CR620022605, NONE, 1.5195, 1.5659, 15, 154045 grve GRVE_2006_USGS, 2013-04-19, JMS , USGS , ASHTECH Z-X, ZE120023202, ZE210A13, ASH700936D_M, CR14329, NONE, 0.9122, 0.9659, 15, 0 grve GRVE_2006_USGS, 2013-04-20, JMS , USGS , ASHTECH Z-X, ZE120023202, ZE210A13, ASH700936D_M, CR14329, NONE, 0.9122, 0.9659, 15, 0 grve GRVE_2006_USGS, 2013-04-21, JMS , USGS , ASHTECH Z-X, ZE120023202, ZE210A13, ASH700936D_M, CR14329, NONE, 0.9122, 0.9659, 15, 0