PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-04:28:00
G07     309.6          47.9                4.2 +/-    1.36       5.4 +/-    1.36  0.180 / 0.480
G08     124.5          42.1                8.1 +/-    0.56      11.4 +/-    0.56  0.170 / 0.360
G09     297.0          80.4                5.4 +/-    0.93       5.4 +/-    0.93  0.050 / 0.060
G16     41.7           28.9                1.9 +/-    0.80       3.5 +/-    0.80  0.040 / 0.060
G23     145.7          63.6                6.2 +/-    0.80       6.9 +/-    0.80  0.050 / 0.080
G27     75.8           36.7                4.8 +/-    0.92       7.4 +/-    0.92  0.040 / 0.080
G28     225.0          14.6                6.4 +/-    1.71      16.1 +/-    1.71  0.070 / 0.130
G30     287.0          23.2                4.7 +/-    0.70       9.5 +/-    0.70  0.070 / 0.140