PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/24-12:58:10
G01     41.3           16.9                6.0 +/-    2.88      14.2 +/-    2.88  0.390 / 0.320
G06     174.0          37.2                6.7 +/-    1.36      10.3 +/-    1.36  0.260 / 0.310
G13     238.1          24.0                7.2 +/-    1.34      14.4 +/-    1.34  0.030 / 0.020
G15     273.6          12.7                5.9 +/-    1.53      15.6 +/-    1.53  0.030 / 0.030
G17     345.9          73.9                5.3 +/-    0.39       5.5 +/-    0.39  0.040 / 0.040
G19     273.2          69.6                5.0 +/-    0.60       5.3 +/-    0.60  0.040 / 0.040
G24     317.3          16.5                3.8 +/-    3.25       9.2 +/-    3.25  0.160 / 0.250
G28     61.0           52.7                5.0 +/-    1.02       6.1 +/-    1.02  0.120 / 0.280
G30     154.2          30.3                6.6 +/-    1.31      11.4 +/-    1.31  0.100 / 0.090