PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/06-02:27:50
G01     44.8           21.0                2.1 +/-    1.03       4.5 +/-    1.03  0.080 / 0.210
G06     179.0          28.6                5.8 +/-    1.69      10.4 +/-    1.69  0.100 / 0.180
G13     242.9          26.7                5.7 +/-    0.98      10.8 +/-    0.98  0.050 / 0.090
G15     277.1          14.2                1.8 +/-    1.09       4.7 +/-    1.09  0.060 / 0.090
G17     353.5          74.3                4.0 +/-    0.48       4.1 +/-    0.48  0.170 / 0.390
G19     258.1          64.2                2.6 +/-    0.38       2.8 +/-    0.38  0.170 / 0.250
G24     317.4          16.3                2.4 +/-    3.99       5.8 +/-    3.99  0.040 / 0.050
G28     58.9           52.1                3.4 +/-    0.74       4.1 +/-    0.74  0.040 / 0.060
G30     152.7          34.8                5.3 +/-    0.93       8.5 +/-    0.93  0.070 / 0.150