PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-13:28:10
G02     296.4          80.8                3.2 +/-    0.80       3.3 +/-    0.80  0.140 / 0.120
G05     169.5          24.6                5.7 +/-    2.10      11.2 +/-    2.10  0.070 / 0.140
G06     40.0           45.9                3.1 +/-    1.32       4.1 +/-    1.32  0.030 / 0.030
G12     319.0          65.1                2.8 +/-    0.60       3.0 +/-    0.60  0.030 / 0.030
G17     79.0           16.7                5.5 +/-    2.12      13.0 +/-    2.12  0.050 / 0.050
G19     68.9           29.7                4.1 +/-    0.92       7.2 +/-    0.92  0.040 / 0.040
G24     235.8          27.7                5.9 +/-    0.96      10.8 +/-    0.96  0.070 / 0.080
G25     317.4          21.3                2.5 +/-    3.09       5.4 +/-    3.09  0.070 / 0.100