PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/28-02:58:10
G08     267.4          16.6                9.9 +/-    1.83      23.7 +/-    1.83  0.110 / 0.230
G10     69.6           55.3                8.5 +/-    1.04      10.1 +/-    1.04  0.160 / 0.370
G11     309.3          18.9                4.8 +/-    3.92      10.8 +/-    3.92  0.160 / 0.340
G14     273.8          67.8                9.6 +/-    0.74      10.3 +/-    0.74  0.150 / 0.360
G18     310.1          35.8                8.0 +/-    0.77      12.5 +/-    0.77  0.040 / 0.050
G20     99.2           34.3                8.5 +/-    1.30      13.7 +/-    1.30  0.050 / 0.060
G21     155.9          12.6                6.5 +/-    3.50      17.1 +/-    3.50  0.070 / 0.110
G27     229.4          13.8               11.4 +/-    0.95      29.1 +/-    0.95  0.080 / 0.100
G31     176.2          35.4                8.9 +/-    1.23      14.0 +/-    1.23  0.030 / 0.020
G32     347.5          72.7                8.5 +/-    0.59       8.9 +/-    0.59  0.030 / 0.020