PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-23:27:50
G05     52.4           12.1                7.1 +/-    0.72      19.0 +/-    0.72  0.100 / 0.210
G10     243.7          19.5               13.2 +/-    1.87      29.4 +/-    1.87  0.130 / 0.210
G13     63.8           35.3                8.6 +/-    0.53      13.6 +/-    0.53  0.080 / 0.200
G15     107.8          57.4               12.4 +/-    0.67      14.4 +/-    0.67  0.090 / 0.160
G16     306.1          13.9                8.0 +/-    2.17      20.5 +/-    2.17  0.050 / 0.060
G18     256.7          49.4               12.5 +/-    0.73      15.9 +/-    0.73  0.030 / 0.060
G20     37.6           55.1                9.5 +/-    0.84      11.3 +/-    0.84  0.030 / 0.040
G21     323.7          54.5               10.0 +/-    1.06      12.0 +/-    1.06  0.030 / 0.050
G26     278.5          18.1               10.4 +/-    1.40      24.0 +/-    1.40  0.110 / 0.190
G29     160.9          57.0               11.5 +/-    0.98      13.4 +/-    0.98  0.180 / 0.210