PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-02:27:50
G01     123.7          12.2                7.1 +/-    3.48      18.8 +/-    3.48  0.030 / 0.050
G07     55.5           69.6                5.5 +/-    0.27       5.9 +/-    0.27  0.040 / 0.040
G08     49.1           37.5                3.1 +/-    0.66       4.7 +/-    0.66  0.080 / 0.280
G09     174.2          30.9                6.9 +/-    1.73      11.9 +/-    1.73  0.090 / 0.320
G11     122.0          36.9                8.0 +/-    0.94      12.3 +/-    0.94  0.060 / 0.110
G13     320.2          14.0                2.0 +/-    1.80       5.2 +/-    1.80  0.060 / 0.120
G17     199.1          16.4                6.0 +/-    1.56      14.4 +/-    1.56  0.030 / 0.040
G28     268.8          46.3                6.6 +/-    0.82       8.7 +/-    0.82  0.030 / 0.040
G30     328.5          58.2                2.6 +/-    0.49       3.0 +/-    0.49  0.060 / 0.070