PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-08:42:40
G01     51.5           26.3                4.8 +/-    1.46       9.1 +/-    1.46  0.040 / 0.060
G06     180.6          20.8                5.9 +/-    1.29      12.7 +/-    1.29  0.040 / 0.070
G07     145.7          13.0                5.6 +/-    2.58      14.6 +/-    2.58  0.110 / 0.390
G11     45.0           15.9                3.0 +/-    2.63       7.4 +/-    2.63  0.110 / 0.430
G13     254.0          31.1                7.2 +/-    1.72      12.4 +/-    1.72  0.020 / 0.030
G15     285.1          16.2                4.2 +/-    1.43      10.3 +/-    1.43  0.020 / 0.020
G17     314.9          79.1                6.1 +/-    0.91       6.2 +/-    0.91  0.090 / 0.250
G19     245.4          60.3                8.6 +/-    0.82       9.7 +/-    0.82  0.080 / 0.320
G28     51.0           53.1                3.8 +/-    0.38       4.7 +/-    0.38  0.070 / 0.120
G30     148.6          42.6                7.7 +/-    1.92      10.8 +/-    1.92  0.060 / 0.110