PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-05:42:50
G03     213.6          57.0                8.6 +/-    0.88      10.1 +/-    0.88  0.050 / 0.070
G07     258.7          17.0                7.6 +/-    3.02      18.0 +/-    3.02  0.050 / 0.080
G09     313.1          34.4                5.7 +/-    0.84       9.2 +/-    0.84  0.190 / 0.410
G16     87.0           63.5                7.8 +/-    1.24       8.6 +/-    1.24  0.290 / 0.250
G22     188.9          40.4                8.7 +/-    0.99      12.6 +/-    0.99  0.030 / 0.040
G23     330.9          60.8                6.5 +/-    0.76       7.4 +/-    0.76  0.040 / 0.050
G26     51.7           40.9                5.8 +/-    0.72       8.2 +/-    0.72  0.200 / 0.170
G27     133.8          11.5                8.6 +/-    4.03      23.3 +/-    4.03  0.060 / 0.130