PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-16:27:50
G01     51.7           26.2               10.7 +/-    0.94      20.3 +/-    0.94  0.080 / 0.180
G06     178.0          23.4               15.2 +/-    2.25      30.8 +/-    2.25  0.080 / 0.160
G07     145.1          11.1               11.1 +/-    5.10      30.3 +/-    5.10  0.040 / 0.070
G11     44.4           13.9                9.5 +/-    1.88      24.3 +/-    1.88  0.060 / 0.080
G13     254.8          31.4               14.4 +/-    1.61      24.5 +/-    1.61  0.090 / 0.210
G15     289.3          15.3                9.3 +/-    2.88      22.9 +/-    2.88  0.180 / 0.270
G17     317.8          79.4               14.0 +/-    0.50      14.2 +/-    0.50  0.030 / 0.030
G19     244.9          60.5               15.0 +/-    0.81      17.0 +/-    0.81  0.030 / 0.030
G28     49.5           53.6               12.1 +/-    0.70      14.6 +/-    0.70  0.080 / 0.150
G30     148.8          46.0               13.2 +/-    1.30      17.6 +/-    1.30  0.080 / 0.110