PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/25-09:28:10
G02     213.6          55.5                9.5 +/-    1.01      11.3 +/-    1.01  0.040 / 0.090
G06     72.1           78.0                6.5 +/-    0.64       6.6 +/-    0.64  0.050 / 0.080
G12     317.2          32.8                4.3 +/-    1.68       7.1 +/-    1.68  0.050 / 0.080
G17     55.8           32.4                3.6 +/-    1.10       6.0 +/-    1.10  0.040 / 0.070
G19     31.3           53.6                4.6 +/-    0.56       5.6 +/-    0.56  0.040 / 0.090
G24     264.4          43.3                6.3 +/-    0.80       8.7 +/-    0.80  0.040 / 0.070
G28     119.5          18.0                6.9 +/-    0.69      15.9 +/-    0.69  0.180 / 0.330