PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-03:58:00
G08     284.0          22.6                9.6 +/-    1.71      19.9 +/-    1.71  0.090 / 0.130
G10     27.5           62.7                6.1 +/-    0.44       6.7 +/-    0.44  0.110 / 0.170
G14     238.4          51.7                9.4 +/-    2.39      11.7 +/-    2.39  0.060 / 0.170
G18     317.4          17.3                6.2 +/-    1.20      14.6 +/-    1.20  0.060 / 0.170
G20     60.1           59.3                7.2 +/-    0.65       8.3 +/-    0.65  0.060 / 0.130
G21     150.7          32.3                9.2 +/-    0.75      15.4 +/-    0.75  0.050 / 0.120
G24     48.0           20.1                4.5 +/-    0.84       9.9 +/-    0.84  0.050 / 0.080
G27     245.5          26.6               11.1 +/-    1.15      20.9 +/-    1.15  0.050 / 0.090
G31     180.4          16.0               12.9 +/-    2.88      31.3 +/-    2.88  0.090 / 0.190
G32     275.6          75.5                7.4 +/-    0.71       7.6 +/-    0.71  0.110 / 0.180