PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/18-02:12:20
G10     298.4          52.2               11.6 +/-    1.17      14.2 +/-    1.17  0.060 / 0.090
G15     46.3           29.7                8.8 +/-    0.80      15.6 +/-    0.80  0.070 / 0.090
G20     318.3          60.4                9.7 +/-    1.19      11.0 +/-    1.19  0.040 / 0.040
G21     96.6           74.6               12.9 +/-    0.60      13.4 +/-    0.60  0.050 / 0.040
G24     95.5           26.6               13.4 +/-    0.55      25.2 +/-    0.55  0.040 / 0.040
G27     299.8          34.5               10.7 +/-    1.10      17.2 +/-    1.10  0.040 / 0.040
G32     210.5          34.5               14.9 +/-    1.87      23.8 +/-    1.87  0.080 / 0.170