PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-12:42:40
G02     213.3          52.1                8.5 +/-    0.72      10.5 +/-    0.72  0.040 / 0.060
G06     72.7           77.4                7.0 +/-    0.56       7.2 +/-    0.56  0.050 / 0.070
G12     317.4          33.8                3.4 +/-    1.09       5.5 +/-    1.09  0.070 / 0.110
G17     54.6           33.7                5.6 +/-    1.55       9.1 +/-    1.55  0.080 / 0.100
G19     27.8           55.3                4.8 +/-    2.60       5.7 +/-    2.60  0.020 / 0.030
G24     267.9          43.2                9.3 +/-    1.44      12.8 +/-    1.44  0.030 / 0.030
G28     118.9          18.2                5.9 +/-    1.65      13.5 +/-    1.65  0.040 / 0.040