PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-07:42:40
G01     94.5           29.5                5.3 +/-    1.13       9.3 +/-    1.13  0.030 / 0.030
G07     120.0          49.1                7.1 +/-    1.23       9.0 +/-    1.23  0.040 / 0.030
G08     41.8           13.2                0.9 +/-    2.17       2.3 +/-    2.17  0.030 / 0.050
G11     77.2           43.8                6.2 +/-    0.62       8.5 +/-    0.62  0.030 / 0.050
G13     299.7          35.3                6.1 +/-    1.43       9.7 +/-    1.43  0.050 / 0.060
G17     209.8          46.7                7.2 +/-    1.25       9.4 +/-    1.25  0.040 / 0.060
G19     211.1          24.1                7.1 +/-    1.19      14.1 +/-    1.19  0.080 / 0.120
G28     321.7          60.1                5.0 +/-    0.94       5.6 +/-    0.94  0.080 / 0.130
G30     67.0           81.0                5.9 +/-    0.45       5.9 +/-    0.45  0.040 / 0.060