PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-05:42:50
G01     68.4           32.6                4.1 +/-    0.93       6.8 +/-    0.93  0.050 / 0.080
G07     138.3          27.2                8.2 +/-    1.06      15.3 +/-    1.06  0.050 / 0.080
G11     51.2           28.0                1.9 +/-    0.79       3.4 +/-    0.79  0.040 / 0.110
G13     271.4          37.7                6.2 +/-    1.68       9.4 +/-    1.68  0.050 / 0.120
G15     302.3          14.7                1.0 +/-    1.06       2.6 +/-    1.06  0.040 / 0.040
G17     239.0          73.8                7.0 +/-    0.64       7.2 +/-    0.64  0.030 / 0.040
G19     225.2          41.4                9.0 +/-    0.43      12.8 +/-    0.43  0.030 / 0.030
G28     19.2           59.6                5.1 +/-    0.68       5.8 +/-    0.68  0.040 / 0.030
G30     137.8          61.5                7.7 +/-    0.70       8.7 +/-    0.70  0.060 / 0.110