PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/11-15:57:40
G01     41.8           17.5                7.0 +/-    3.05      16.4 +/-    3.05  0.040 / 0.070
G06     174.8          36.0                9.9 +/-    1.54      15.5 +/-    1.54  0.040 / 0.060
G13     238.7          24.3                9.5 +/-    1.68      18.9 +/-    1.68  0.170 / 0.300
G15     273.0          13.0                7.8 +/-    1.25      20.4 +/-    1.25  0.240 / 0.350
G17     346.7          74.0                8.2 +/-    0.31       8.5 +/-    0.31  0.020 / 0.030
G19     271.0          68.9                7.4 +/-    0.82       7.9 +/-    0.82  0.030 / 0.030
G24     317.3          16.6                7.6 +/-    2.45      18.1 +/-    2.45  0.040 / 0.040
G28     61.3           52.4                8.8 +/-    0.86      10.8 +/-    0.86  0.030 / 0.040
G30     153.4          28.8                8.7 +/-    1.34      15.7 +/-    1.34  0.100 / 0.300