PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/09-10:27:50
G01     110.4          23.7                4.7 +/-    1.88       9.4 +/-    1.88  0.030 / 0.040
G07     101.8          60.2                6.2 +/-    0.53       7.1 +/-    0.53  0.030 / 0.040
G08     42.0           21.6                2.8 +/-    0.84       5.8 +/-    0.84  0.040 / 0.030
G09     172.7          13.1                5.1 +/-    3.19      13.2 +/-    3.19  0.030 / 0.030
G11     92.1           42.4                5.7 +/-    0.43       8.0 +/-    0.43  0.080 / 0.190
G13     312.0          26.7                3.8 +/-    1.02       7.1 +/-    1.02  0.080 / 0.200
G17     204.0          35.7                6.4 +/-    1.48      10.0 +/-    1.48  0.070 / 0.230
G18     82.8           23.5                4.1 +/-    0.69       8.4 +/-    0.69  0.060 / 0.170
G28     309.4          60.0                4.7 +/-    0.58       5.3 +/-    0.58  0.080 / 0.190
G30     3.8            75.4                5.1 +/-    0.75       5.3 +/-    0.75  0.090 / 0.170