PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-11:58:30
G08     271.6          20.5                6.3 +/-    2.53      13.7 +/-    2.53  0.080 / 0.200
G10     51.7           59.6                5.8 +/-    0.85       6.6 +/-    0.85  0.080 / 0.180
G14     255.7          63.7                6.4 +/-    0.36       7.1 +/-    0.36  0.060 / 0.050
G18     314.2          29.8                4.4 +/-    1.39       7.7 +/-    1.39  0.050 / 0.060
G20     89.9           40.1                4.6 +/-    1.02       6.6 +/-    1.02  0.040 / 0.020
G21     152.9          17.7                5.0 +/-    1.91      11.6 +/-    1.91  0.030 / 0.030
G24     41.3           12.2                3.0 +/-    1.69       8.0 +/-    1.69  0.030 / 0.020
G27     238.1          20.3                6.5 +/-    1.74      14.3 +/-    1.74  0.030 / 0.020
G31     180.9          22.8                4.5 +/-    1.09       9.2 +/-    1.09  0.130 / 0.120
G32     298.7          74.7                6.0 +/-    0.44       6.2 +/-    0.44  0.380 / 0.290