PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-06:27:50
G01     318.2          20.9                3.8 +/-    2.59       8.1 +/-    2.59  0.160 / 0.250
G08     256.9          12.3                8.2 +/-    5.26      21.9 +/-    5.26  0.190 / 0.300
G10     84.0           50.5                5.4 +/-    0.97       6.8 +/-    0.97  0.040 / 0.040
G11     300.7          24.0                2.8 +/-    1.54       5.5 +/-    1.54  0.030 / 0.040
G14     304.1          71.3                5.4 +/-    0.77       5.6 +/-    0.77  0.200 / 0.270
G18     301.7          43.2                4.2 +/-    2.82       5.9 +/-    2.82  0.280 / 0.310
G20     107.5          27.4                5.6 +/-    0.89      10.3 +/-    0.89  0.040 / 0.050
G22     302.6          13.3                5.6 +/-    2.74      14.6 +/-    2.74  0.040 / 0.050
G31     174.4          45.1                7.8 +/-    0.60      10.5 +/-    0.60  0.340 / 0.400
G32     5.7            67.6                5.0 +/-    0.91       5.4 +/-    0.91  0.270 / 0.380