PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-13:43:00
G01     70.4           32.9                7.0 +/-    0.91      11.6 +/-    0.91  0.030 / 0.030
G07     137.6          30.6                7.8 +/-    1.35      13.5 +/-    1.35  0.030 / 0.030
G11     52.8           29.6                7.4 +/-    1.77      13.1 +/-    1.77  0.080 / 0.110
G13     273.7          37.7                7.9 +/-    2.20      11.9 +/-    2.20  0.070 / 0.080
G15     305.2          13.6                3.7 +/-    1.07       9.6 +/-    1.07  0.070 / 0.100
G17     234.5          70.6                8.6 +/-    0.42       9.0 +/-    0.42  0.040 / 0.090
G18     48.4           17.7                7.4 +/-    2.07      17.2 +/-    2.07  0.050 / 0.070
G19     224.2          38.8                8.8 +/-    2.38      13.0 +/-    2.38  0.060 / 0.060
G28     19.7           59.3                8.7 +/-    1.54      10.0 +/-    1.54  0.110 / 0.210
G30     135.9          63.1                8.7 +/-    0.64       9.6 +/-    0.64  0.170 / 0.190