PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/04-02:57:40
G01     39.4           13.9                2.6 +/-    2.86       6.5 +/-    2.86  0.110 / 0.330
G02     199.2          11.3                0.2 +/-    2.73       0.6 +/-    2.73  0.100 / 0.410
G06     177.3          39.0                4.1 +/-    0.99       6.1 +/-    0.99  0.040 / 0.060
G13     234.4          20.2                4.2 +/-    2.30       9.2 +/-    2.30  0.040 / 0.050
G15     268.2          11.1                2.0 +/-    2.59       5.5 +/-    2.59  0.100 / 0.190
G17     12.7           66.3                3.5 +/-    0.61       3.8 +/-    0.61  0.090 / 0.140
G19     283.8          69.6                4.0 +/-    0.91       4.2 +/-    0.91  0.060 / 0.060
G24     314.1          24.4                2.1 +/-    1.57       4.1 +/-    1.57  0.060 / 0.080
G28     72.7           47.6                3.7 +/-    1.10       4.8 +/-    1.10  0.030 / 0.030
G30     155.6          25.0                4.9 +/-    1.11       9.6 +/-    1.11  0.030 / 0.030