PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-08:12:30
G10     248.6          24.7                6.7 +/-    1.19      13.2 +/-    1.19  0.150 / 0.380
G13     56.2           31.6                4.7 +/-    1.26       8.0 +/-    1.26  0.150 / 0.400
G15     89.1           57.1                6.7 +/-    1.88       7.8 +/-    1.88  0.030 / 0.050
G16     298.3          15.3                3.1 +/-    2.15       7.7 +/-    2.15  0.040 / 0.030
G20     18.8           66.3                3.0 +/-    0.53       3.3 +/-    0.53  0.150 / 0.130
G21     331.9          59.2                3.9 +/-    1.11       4.4 +/-    1.11  0.180 / 0.150
G26     269.3          16.5                5.4 +/-    5.89      13.0 +/-    5.89  0.050 / 0.100
G29     164.0          52.1                7.7 +/-    0.58       9.5 +/-    0.58  0.050 / 0.090