PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-00:27:50
G10     299.4          52.5                9.5 +/-    1.22      11.6 +/-    1.22  0.060 / 0.090
G14     210.8          11.7                0.6 +/-   32.37       1.5 +/-   32.37  0.060 / 0.080
G15     46.4           30.1                7.0 +/-    0.60      12.3 +/-    0.60  0.040 / 0.040
G20     298.4          49.8               18.1 +/-    1.57      22.8 +/-    1.57  0.030 / 0.050
G21     98.2           74.4                9.4 +/-    0.51       9.7 +/-    0.51  0.190 / 0.420
G24     94.4           26.8               10.6 +/-    1.48      19.9 +/-    1.48  0.140 / 0.530
G27     299.3          34.6               10.2 +/-    1.01      16.2 +/-    1.01  0.040 / 0.040
G32     210.8          35.1               15.3 +/-    1.49      24.3 +/-    1.49  0.040 / 0.040