PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-08:42:40
G01     122.2          14.0                5.2 +/-    1.71      13.3 +/-    1.71  0.030 / 0.030
G07     69.7           67.4                5.7 +/-    0.47       6.1 +/-    0.47  0.030 / 0.030
G08     49.1           38.9                3.2 +/-    1.32       4.7 +/-    1.32  0.100 / 0.150
G09     176.9          31.5                5.2 +/-    0.69       8.8 +/-    0.69  0.170 / 0.160
G11     115.3          38.5                7.7 +/-    0.83      11.5 +/-    0.83  0.080 / 0.100
G13     319.4          16.2                1.8 +/-    3.02       4.4 +/-    3.02  0.100 / 0.090
G17     200.6          16.5                3.7 +/-    0.95       8.9 +/-    0.95  0.040 / 0.060
G18     99.1           18.6                5.5 +/-    1.94      12.6 +/-    1.94  0.040 / 0.060
G28     274.4          49.5                5.5 +/-    2.51       7.0 +/-    2.51  0.040 / 0.030
G30     335.4          63.0                4.5 +/-    1.13       4.9 +/-    1.13  0.030 / 0.040