PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/23-10:42:30
G02     202.4          25.8                5.1 +/-    1.07       9.8 +/-    1.07  0.190 / 0.300
G06     165.8          62.3                6.3 +/-    0.64       7.0 +/-    0.64  0.170 / 0.310
G12     304.1          11.8                0.5 +/-   13.68       1.3 +/-   13.68  0.090 / 0.080
G17     32.1           52.2                4.3 +/-    0.91       5.3 +/-    0.91  0.050 / 0.080
G19     333.9          69.1                4.3 +/-    0.55       4.6 +/-    0.55  0.040 / 0.030
G24     301.7          37.2                6.0 +/-    1.08       9.1 +/-    1.08  0.040 / 0.030
G28     95.1           36.5                6.8 +/-    0.73      10.5 +/-    0.73  0.040 / 0.030