PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/09-20:57:50
G10     250.4          26.7               13.4 +/-    1.44      25.1 +/-    1.44  0.040 / 0.050
G13     53.6           29.8               10.0 +/-    0.84      17.6 +/-    0.84  0.040 / 0.060
G15     97.3           60.2               12.5 +/-    0.40      14.2 +/-    0.40  0.120 / 0.640
G16     295.2          15.7                8.8 +/-    2.55      21.5 +/-    2.55  0.140 / 0.640
G20     269.4          50.6               11.0 +/-    0.49      13.7 +/-    0.49  0.060 / 0.190
G21     333.4          59.9               10.5 +/-    0.70      12.0 +/-    0.70  0.060 / 0.180
G26     267.7          15.7               12.3 +/-    1.70      30.2 +/-    1.70  0.030 / 0.050
G29     164.8          50.9               11.6 +/-    1.08      14.4 +/-    1.08  0.030 / 0.050