PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/29-17:27:30
G10     248.4          25.3                8.9 +/-    2.20      17.4 +/-    2.20  0.040 / 0.060
G13     55.8           30.9                8.4 +/-    0.53      14.4 +/-    0.53  0.050 / 0.060
G15     97.6           59.2                9.9 +/-    0.55      11.3 +/-    0.55  0.140 / 0.680
G16     298.5          15.4                6.8 +/-    2.53      16.6 +/-    2.53  0.160 / 0.680
G20     266.4          49.1                9.9 +/-    1.31      12.6 +/-    1.31  0.060 / 0.120
G21     332.5          59.2                7.6 +/-    0.77       8.7 +/-    0.77  0.050 / 0.170
G26     271.3          16.4                9.7 +/-    1.74      23.3 +/-    1.74  0.030 / 0.040
G29     163.4          52.7               10.3 +/-    1.58      12.6 +/-    1.58  0.030 / 0.040