PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-08:42:30
G02     202.3          28.2                5.5 +/-    0.92      10.0 +/-    0.92  0.120 / 0.270
G06     166.4          63.0                9.2 +/-    0.88      10.2 +/-    0.88  0.130 / 0.340
G12     304.5          11.6                0.3 +/-   11.27       0.7 +/-   11.27  0.050 / 0.090
G17     33.6           50.9                3.3 +/-    0.42       4.1 +/-    0.42  0.060 / 0.090
G19     340.2          68.7                5.1 +/-    0.57       5.5 +/-    0.57  0.040 / 0.050
G24     299.7          38.6                3.9 +/-    0.93       5.8 +/-    0.93  0.040 / 0.040
G28     96.2           36.1                6.6 +/-    0.60      10.2 +/-    0.60  0.050 / 0.120