PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-09:43:00
G01     96.3           29.0                5.0 +/-    1.15       8.9 +/-    1.15  0.030 / 0.040
G07     118.9          49.4                6.6 +/-    0.58       8.4 +/-    0.58  0.040 / 0.060
G08     41.8           15.7                2.6 +/-    2.98       6.5 +/-    2.98  0.050 / 0.080
G11     78.0           43.6                5.1 +/-    0.83       7.0 +/-    0.83  0.050 / 0.060
G13     301.1          34.7                4.7 +/-    1.01       7.6 +/-    1.01  0.160 / 0.190
G17     209.5          44.1                6.6 +/-    1.28       9.0 +/-    1.28  0.140 / 0.230
G18     70.1           24.6                5.7 +/-    0.94      11.3 +/-    0.94  0.130 / 0.260
G19     210.7          22.7                5.1 +/-    1.88      10.6 +/-    1.88  0.140 / 0.260
G28     320.3          60.0                4.0 +/-    0.69       4.5 +/-    0.69  0.030 / 0.030
G30     65.0           80.5                5.6 +/-    1.06       5.7 +/-    1.06  0.040 / 0.020