benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s) oldd, 1992-07-12, KWC , usgs , ASHTECH LM-XII3, 763, 7A24, ASH700228A, 0718, NONE, 1.1738, 1.2235, 30, 20300 oldd, 1992-07-17, KWC , , ASHTECH LM-XII3, 099, 7A24, ASH700228D, *031, NONE, 1.1869, 1.2364, 30, 201730 oldd, 1992-07-11, JMS , usgs , ASHTECH, 1104 , LM-XII3 7A24, ASH700228D, 1068, NONE, 1.1738, 1.2235, 30, 21330 oldd, 1992-07-16, JMS , , ASHTECH, 765 , LM-XII3 7A24, ASH700228D, 1058, NONE, 1.2724, 1.321, 30, 20420 oldd Old_1935_USC&GS_(LAP, 1992-08-01, GDH , USGS , ASHTECH, 99 , LM-XII3 7A, ASH700228D, 1036, NONE, 1.1718, 1.2215, 5, 195515 oldd Old_1935_USC&GS_(LAP, 1992-11-13, KWC , USGS , ASHTECH, 107 , LM-XII3 6M24, ASH700228D, *031, NONE, 1.197, 1.2464, 30, 144030 oldd, 1992-11-15, GDH , USGS , ASHTECH, 762 , LM-XII3 6M24, ASH700228A, 0745, NONE, 1.1708, 1.2205, 30, 14830 oldd, 1993-10-05, WKG , USGS , ASHTECH, 763 , LM-XII3 7A, ASH700228A, 0718, NONE, 1.3157, 1.3638, 30, 181430 oldd, 1993-10-06, WKG , USGS , ASHTECH, 765 , LM-XII3 7A, ASH700228D, 1058, NONE, 1.1638, 1.2136, 30, 161530 oldd, 1994-05-15, JMS , USGS , ASHTECH, 765 , LM-XII3 7A, ASH700228D, 1058, NONE, 1.2473, 1.2961, 30, 13440 oldd Old_1935_USC&GS_(LAP, 1995-02-03, GDH , USGS , ASHTECH, 99 , LM-XII3 7A, ASH700228D, 1036, NONE, 1.2212, 1.2703, 30, 154830 oldd Old_1935_USC&GS_(LAP, 1995-11-28, GDH , USGS , ASHTECH, 707 , Z-XII3 1F00, ASH700718B, 11404, NONE, 1.2056, 1.2549, 30, 15390 oldd Old_1935_USC&GS_(LAP, 1997-01-08, CHS , , ASHTECH, O4597 , Z-XII3 1E95, ASH700228A, 0598, NONE, 1.3197, 1.3678, 30, 17340 oldd Old_1935_USC&GS_(LAP, 1997-01-09, JMS , , ASHTECH, O4582 , Z-XII3 1E95, ASH700228D, 1068, NONE, 1.368, 1.4157, 30, 1720 oldd Old_1935_USC&GS_(LAP, 1998-01-27, GDH , USGS , ASHTECH, O4582 , Z-XII3 1E95, ASH700936D_M, CR14329, NONE, 1.2267, 1.2758, 30, 17250 oldd Old_1935_USC&GS_(LAP, 1998-01-28, CHS , USGS , ASHTECH, O4597 , Z-XII3 1E95, ASH700936D_M, CR14330, NONE, 1.3106, 1.3588, 30, 15410 oldd Old_1935_USC&GS_(LAP, 1999-10-21, GDH , USGS , ASHTECH, lp019992804 , Z-XII3 CD00, ASH700936D_M, CR14341, NONE, 1.3469, 1.3948, 30, 152030 oldd Old_1935_USC&GS_(LAP, 1999-10-22, GDH , USGS , ASHTECH, lp019992804 , Z-XII3 CD00, ASH700936D_M, CR14341, NONE, 1.3469, 1.3948, 30, 30 oldd Old_1935_USC&GS_(LAP, 1999-11-06, CHS , USGS , ASHTECH, 4600 , Z-XII3 CC00, ASH701945B_M, CR519993703, NONE, 1.2439, 1.2928, 30, 16130 oldd Old_1935_USC&GS_(LAP, 1999-11-07, CHS , USGS , ASHTECH, 4600 , Z-XII3 CC00, ASH701945B_M, CR519993703, NONE, 1.2439, 1.2928, 30, 10 oldd Old_1935_USC&GS_(LAP, 1999-11-17, JMS , , ASHTECH, lp019992803 , Z-XII3 CD00, ASH701945.02B, CR619992801, NONE, 1.3065, 1.3548, 30, 17450 oldd Old_1935_USC&GS_(LAP, 1999-11-18, JMS , USGS , ASHTECH, lp019992803 , Z-XII3 CD00, ASH701945.02B, CR619992801, NONE, 1.3065, 1.3548, 30, 30 oldd Old_1935_USC&GS_(LAP, 1999-11-19, JMS , , ASHTECH, lp019992803 , Z-XII3 CD00, ASH701945.02B, CR619992801, NONE, 1.3065, 1.3548, 30, 30 oldd Old_1935_USC&GS_(LAP, 1999-12-15, GDH , USGS , ASHTECH, O4582 , Z-XII3 CC00, ASH701945.02B, CR619992805, NONE, 1.2156, 1.2648, 30, 16330 oldd Old_1935_USC&GS_(LAP, 1999-12-16, GDH , USGS , ASHTECH, O4582 , Z-XII3 CC00, ASH701945.02B, CR619992805, NONE, 1.2156, 1.2648, 30, 30 oldd Old_1935_USC&GS_(LAP, 2000-01-20, GDH , USGS-MenloPark , ASHTECH, O4591 , Z-XII3 CC00, ASH701945.02B, CR619992805, NONE, 1.2075, 1.2568, 30, 15550 oldd Old_1935_USC&GS_(LAP, 2000-01-21, GDH , USGS-MenloPark , ASHTECH, O4591 , Z-XII3 CC00, ASH701945.02B, CR619992805, NONE, 1.2075, 1.2568, 30, 30 oldd Old_1935_USC&GS_(LAP, 2000-02-25, GDH , , ASHTECH, lp019992805 , Z-XII3 CD00, ASH700936D_M, CR14330, NONE, 1.1245, 1.1748, 30, 15550 oldd Old_1935_USC&GS_(LAP, 2000-02-26, GDH , , ASHTECH, lp019992805 , Z-XII3 CD00, ASH700936D_M, CR14330, NONE, 1.1245, 1.1748, 30, 30 oldd Old_1935_USC&GS_(LAP, 2000-05-03, GDH , USGS , ASHTECH, 4600 , Z-XII3 CD00, ASH700936D_M, CR14244, NONE, 1.166, 1.2158, 30, 14540 oldd Old_1935_USC&GS_(LAP, 2000-05-04, GDH , , ASHTECH, 4600 , Z-XII3 CD00, ASH700936D_M, CR14244, NONE, 1.166, 1.2158, 30, 30 oldd Old_1935_USC&GS_(LAP, 2000-11-01, GDH , , ASHTECH, LP03360 , Z-XII3 CC00, ASH701945B_M, CR519993703, NONE, 1.1974, 1.2468, 30, 1670 oldd Old_1935_USC&GS_(LAP, 2000-11-02, GDH , , ASHTECH, LP03360 , Z-XII3 CC00, ASH701945B_M, CR519993703, NONE, 1.1974, 1.2468, 30, 30 oldd Old_1935_USC&GS_(LAP, 2001-04-21, CHS , , ASHTECH, lp019992804 , Z-XII3 CD00, ASH700936D_M, CR14341, NONE, 1.2368, 1.2858, 30, 10 oldd Old_1935_USC&GS_(LAP, 2001-04-22, CHS , , ASHTECH, lp019992804 , Z-XII3 CD00, ASH700936D_M, CR14341, NONE, 1.2368, 1.2858, 30, 10 oldd Old_1935_USC&GS_(LAP, 2002-01-24, JMS , USGS , ASHTECH, 04597 , Z-XII3 CC00, ASH701945B_M, CR619992801, NONE, 1.2934, 1.3418, 30, 164730 oldd Old_1935_USC&GS_(LAP, 2002-01-25, JMS , USGS , ASHTECH, 04597 , Z-XII3 CC00, ASH701945B_M, CR619992801, NONE, 1.2934, 1.3418, 30, 10 oldd Old_1935_USC&GS_(LAP, 2002-01-26, JMS , USGS , ASHTECH, 04597 , Z-XII3 CC00, ASH701945B_M, CR619992801, NONE, 1.2914, 1.3398, 30, 730 oldd Old_1935_USC&GS_(LAP, 2003-02-25, JMS , USGS , ASHTECH, LP019992803 , Z-XII3 CD00, ASH701945B_M, CR519993706, NONE, 1.3985, 1.4459, 30, 161515 oldd Old_1935_USC&GS_(LAP, 2003-02-26, JMS , USGS , ASHTECH, LP019992803 , Z-XII3 CD00, ASH701945B_M, CR519993706, NONE, 1.3985, 1.4459, 30, 10 oldd Old_1935_USC&GS_(LAP, 2004-04-21, CHS , USGS , ASHTECH, 04597 , Z-XII3 CD00, ASH701945E_M, CR520031622, NONE, 1.2814, 1.3299, 30, 10 oldd Old_1935_USC&GS_(LAP, 2004-04-22, CHS , USGS , ASHTECH, 04597 , Z-XII3 CD00, ASH701945E_M, CR520031622, NONE, 1.2814, 1.3299, 30, 10 oldd Old_1935_USC&GS_(LAP, 2006-03-15, GDH , USGS , ASHTECH, ZE120023204 , Z-X ZE21, ASH700936D_M, CR14333, NONE, 1.2673, 1.3159, 30, 0 oldd Old_1935_USC&GS_(LAP, 2006-03-16, GDH , USGS , ASHTECH, ZE120023204 , Z-X ZE21, ASH700936D_M, CR14333, NONE, 1.2187, 1.2679, 30, 1730 oldd Old_1935_USC&GS_(LAP, 2015-02-20, JMS , USGS , ASHTECH, ZE120023204 , Z-X ZE210, ASH701945E_M, CR520031626, NONE, 0.773, 0.8298, 15, 0 oldd Old_1935_USC&GS_(LAP, 2015-02-21, JMS , USGS , ASHTECH, ZE120023204 , Z-X ZE210, ASH701945E_M, CR520031626, NONE, 0.773, 0.8298, 15, 0 oldd Old_1935_USC&GS_(LAP, 2015-02-22, JMS , USGS , ASHTECH, ZE120023204 , Z-X ZE210, ASH701945E_M, CR520031626, NONE, 0.773, 0.8298, 15, 0