PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-15:13:10
G08     320.3          11.6               -0.8 +/-   24.93      -2.1 +/-   24.93  0.070 / 0.070
G10     307.8          55.6                6.0 +/-    0.89       7.1 +/-    0.89  0.070 / 0.060
G14     211.8          12.4                3.6 +/-   14.13       9.6 +/-   14.13  0.130 / 0.610
G15     45.3           20.0                5.8 +/-    2.37      12.9 +/-    2.37  0.200 / 0.390
G20     13.1           63.8                6.9 +/-    0.42       7.6 +/-    0.42  0.040 / 0.030
G21     111.2          69.6                8.2 +/-    0.53       8.7 +/-    0.53  0.040 / 0.040
G24     93.7           28.5                7.7 +/-    2.29      13.9 +/-    2.29  0.250 / 0.320
G27     294.8          36.6                8.6 +/-    5.49      13.2 +/-    5.49  0.260 / 0.400
G32     211.9          38.7                8.2 +/-    1.08      12.1 +/-    1.08  0.040 / 0.030