PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-14:57:40
G02     210.9          47.7                8.3 +/-    1.88      10.7 +/-    1.88  0.070 / 0.060
G06     85.0           77.8                8.8 +/-    0.40       9.0 +/-    0.40  0.100 / 0.080
G12     317.0          33.5                7.5 +/-    1.26      12.2 +/-    1.26  0.070 / 0.090
G17     51.6           36.0                5.6 +/-    0.78       8.7 +/-    0.78  0.080 / 0.090
G19     22.3           57.7                7.4 +/-    0.60       8.6 +/-    0.60  0.040 / 0.030
G24     274.9          43.2                6.1 +/-    1.27       8.5 +/-    1.27  0.040 / 0.020
G28     116.1          20.4                7.9 +/-    0.87      17.2 +/-    0.87  0.060 / 0.040