PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/01-02:28:10
G02     240.0          76.7                7.0 +/-    0.41       7.1 +/-    0.41  0.040 / 0.040
G05     171.1          16.1                8.1 +/-    2.00      19.7 +/-    2.00  0.040 / 0.040
G06     40.9           60.2                6.1 +/-    0.43       7.0 +/-    0.43  0.180 / 0.180
G12     321.4          50.0                5.4 +/-    0.53       6.8 +/-    0.53  0.160 / 0.270
G17     68.3           26.1                3.5 +/-    1.55       6.7 +/-    1.55  0.040 / 0.030
G19     55.7           39.7                4.4 +/-    1.26       6.5 +/-    1.26  0.040 / 0.030
G24     246.9          35.5                8.6 +/-    2.01      13.5 +/-    2.01  0.090 / 0.080