PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-02:27:30
G02     200.8          29.6                7.3 +/-    1.39      13.0 +/-    1.39  0.060 / 0.080
G06     169.3          60.7                7.6 +/-    0.56       8.5 +/-    0.56  0.050 / 0.080
G17     26.7           56.2                5.0 +/-    0.84       5.9 +/-    0.84  0.040 / 0.040
G19     345.1          68.7                4.4 +/-    0.39       4.7 +/-    0.39  0.040 / 0.030
G24     305.1          33.8                3.7 +/-    1.46       6.1 +/-    1.46  0.030 / 0.030
G28     96.2           35.0                6.4 +/-    0.69      10.1 +/-    0.69  0.040 / 0.040