benchmark, date, observer, organization, receiver, receiver_sn, receiver_type, antenna, antenna_sn, dome, height (m), slant height (m), interval, first_observation (s) bl91 Black_1991_YM_Caltech, 1993-10-17, UNKNOWN , UNKNOWN , TRIMBLE 4000SST, 2949A00423, NP, TRM14532.00, 3006A00028, NONE, 1.1397, 0, 30, 17120 bl91 Black_1991_YM_Caltech, 1993-10-18, UNKNOWN , UNKNOWN , TRIMBLE 4000SST, 2949A00423, NP, TRM14532.00, 3006A00028, NONE, 1.0693, 0, 30, 16310 bl91 Black_1991_YM_Caltech, 1993-10-19, UNKNOWN , UNKNOWN , TRIMBLE 4000SST, 2949A00423, NP, TRM14532.00, 3006A00028, NONE, 1.0693, 0, 30, 0 bl91 Black_1991_YM_Caltech, 1994-10-21, UNKNOWN , UNKNOWN , TRIMBLE 4000SSE, 3414A05699, NP, TRM22020.00+GP, 0080098261, NONE, 1.0945, 0, 30, 153030 bl91 Black_1991_YM_Caltech, 1994-10-23, UNKNOWN , UNKNOWN , TRIMBLE 4000SSE, 3337A03973, NP, TRM22020.00+GP, 80053868, NONE, 1.3162, 0, 30, 171630 bl91 Black_1991_YM_Caltech, 1995-10-14, UNKNOWN , UNKNOWN , TRIMBLE 4000SSE, 3442A08396, NP, TRM22020.00+GP, 0220007307, NONE, 1.1822, 0, 30, 11830 bl91 Black_1991_YM_Caltech, 1996-08-31, Stirewalt/Abolins , UNKNOWN , TRIMBLE 4000SSE, 3526A11508, NP, TRM22020.00+GP, 0220024323, NONE, 1.1852, 0, 30, 5530 bl91 Black_1991_YM_Caltech, 1996-09-01, Stirewalt/Abolins , UNKNOWN , TRIMBLE 4000SSE, 3526A11508, NP, TRM22020.00+GP, 0220024323, NONE, 1.1852, 0, 30, 0 bl91 Black_1991_YM_Caltech, 2002-09-25, Wernicke Cooksey , UNKNOWN , TRIMBLE 4000SSE, 3337A03970, NP, TRM22020.00+GP, 0220050367, NONE, 1.1765, 0, 30, 290 bl91 Black_1991_YM_Caltec, 1993-05-05, JMS , USGS , ASHTECH, 107 , LM-XII3 6M24, ASH700228D, *031, NONE, 1.1345, 1.1847, 30, 3030 bl91 Black_1991_YM_Caltec, 1993-05-06, KWC , USGS , ASHTECH, 107 , LM-XII3 6M24, ASH700228D, *031, NONE, 1.1376, 1.1877, 30, 3030 bl91 Black_1991_YM_Caltec, 1998-06-03, CHS , USGS , ASHTECH, O4597 , Z-XII3 1E95, ASH700936D_M, CR14330, NONE, 1.2318, 1.2808, 30, 30 bl91 Black_1991_YM_Caltec, 1998-06-04, CHS , USGS , ASHTECH, O4597 , Z-XII3 1E95, ASH700936D_M, CR14330, NONE, 1.2318, 1.2808, 30, 30