PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-02:12:40
G02     200.9          30.2                7.0 +/-    1.28      12.2 +/-    1.28  0.070 / 0.090
G06     168.6          61.6                7.2 +/-    0.63       8.0 +/-    0.63  0.080 / 0.090
G17     27.1           55.9                4.4 +/-    1.12       5.1 +/-    1.12  0.050 / 0.040
G19     346.5          68.5                3.5 +/-    0.33       3.7 +/-    0.33  0.040 / 0.040
G24     304.6          34.3                3.5 +/-    1.36       5.6 +/-    1.36  0.040 / 0.030
G28     96.8           34.6                5.7 +/-    1.04       9.1 +/-    1.04  0.040 / 0.020