PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/13-02:57:40
G01     45.0           21.1                1.8 +/-    0.92       3.9 +/-    0.92  0.110 / 0.120
G06     178.2          30.3                6.8 +/-    1.47      11.8 +/-    1.47  0.090 / 0.130
G11     44.0           11.4                2.0 +/-    1.85       5.4 +/-    1.85  0.040 / 0.070
G13     244.5          26.3                5.2 +/-    0.87      10.0 +/-    0.87  0.040 / 0.080
G15     276.2          14.5                3.9 +/-    2.04       9.9 +/-    2.04  0.030 / 0.040
G17     338.8          75.6                3.4 +/-    0.37       3.5 +/-    0.37  0.040 / 0.030
G19     261.1          65.7                2.6 +/-    0.39       2.8 +/-    0.39  0.080 / 0.130
G24     318.5          13.1                0.6 +/-    1.09       1.4 +/-    1.09  0.080 / 0.150
G28     63.5           49.5                3.3 +/-    0.85       4.2 +/-    0.85  0.130 / 0.520
G30     151.3          30.0                5.2 +/-    0.94       9.1 +/-    0.94  0.150 / 0.450