PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-10:13:10
G02     200.2          18.6                4.8 +/-    2.43      10.8 +/-    2.43  0.130 / 0.200
G06     169.3          52.9                8.8 +/-    0.55      10.7 +/-    0.55  0.150 / 0.220
G13     226.8          14.4                6.5 +/-    3.44      16.4 +/-    3.44  0.040 / 0.030
G17     18.5           61.9                5.8 +/-    0.69       6.5 +/-    0.69  0.040 / 0.030
G19     324.3          71.9                5.3 +/-    0.62       5.5 +/-    0.62  0.050 / 0.060
G24     311.4          27.1                3.8 +/-    0.83       7.0 +/-    0.83  0.060 / 0.070
G28     80.1           46.7                6.6 +/-    0.84       8.7 +/-    0.84  0.390 / 0.730
G30     157.8          18.0                6.1 +/-    1.71      14.2 +/-    1.71  0.210 / 0.350