PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/17-09:13:00
G01     42.3           18.0                3.0 +/-    3.24       7.0 +/-    3.24  0.070 / 0.090
G06     174.3          34.9                4.7 +/-    1.22       7.5 +/-    1.22  0.070 / 0.090
G11     43.7           9.7                 1.6 +/-    5.10       4.6 +/-    5.10  0.110 / 0.250
G13     239.9          25.5                5.9 +/-    1.27      11.4 +/-    1.27  0.080 / 0.230
G15     273.9          13.6                3.1 +/-    0.93       8.0 +/-    0.93  0.220 / 0.280
G17     348.3          74.4                5.3 +/-    0.63       5.5 +/-    0.63  0.190 / 0.340
G19     267.5          68.8                5.0 +/-    0.83       5.4 +/-    0.83  0.140 / 0.220
G24     318.0          14.2                2.3 +/-    1.66       5.7 +/-    1.66  0.090 / 0.330
G28     56.2           54.3                4.5 +/-    1.08       5.4 +/-    1.08  0.040 / 0.060
G30     154.2          34.5                5.8 +/-    0.81       9.3 +/-    0.81  0.040 / 0.050