PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-03:42:50
G01     88.5           30.7                7.1 +/-    1.04      12.2 +/-    1.04  0.030 / 0.030
G07     124.1          46.8                7.3 +/-    0.67       9.6 +/-    0.67  0.030 / 0.030
G11     73.3           43.9                6.8 +/-    0.90       9.3 +/-    0.90  0.180 / 0.330
G13     294.5          37.2                9.1 +/-    3.61      13.9 +/-    3.61  0.340 / 0.440
G15     313.7          11.5                3.1 +/-    1.93       8.3 +/-    1.93  0.080 / 0.080
G17     212.0          53.4                8.6 +/-    0.70      10.4 +/-    0.70  0.060 / 0.070
G19     212.8          28.5                7.3 +/-    1.72      13.1 +/-    1.72  0.050 / 0.060
G28     327.8          60.5                5.3 +/-    0.77       6.0 +/-    0.77  0.050 / 0.050
G30     87.7           80.7                6.8 +/-    1.10       6.9 +/-    1.10  0.210 / 0.190