PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/12-08:58:00
G02     200.5          16.3                3.2 +/-    1.77       7.8 +/-    1.77  0.090 / 0.130
G06     172.1          50.2                6.6 +/-    0.72       8.3 +/-    0.72  0.080 / 0.120
G13     229.0          15.2                5.7 +/-    1.80      14.0 +/-    1.80  0.200 / 0.270
G17     21.8           60.3                5.3 +/-    0.64       6.0 +/-    0.64  0.390 / 0.390
G19     301.9          70.2                4.4 +/-    0.46       4.6 +/-    0.46  0.040 / 0.040
G24     309.8          30.8                5.7 +/-    1.70       9.9 +/-    1.70  0.040 / 0.030
G28     83.1           42.8                5.9 +/-    1.71       8.2 +/-    1.71  0.050 / 0.040
G30     157.3          19.0                5.9 +/-    2.07      13.3 +/-    2.07  0.040 / 0.040